PATHOLOGICAL COMPLETE RESPONSE TO NEOADJUVANT CHEMORADIOTHERAPY IN PATIENTS WITH LOCALLY ADVANCED GASTRIC CANCER

The impact of pathological complete response (pCR) on long-term treatment outcomes was analyzed in patients with locally advanced gastric cancer, who received prolonged neoadjuvant chemoradiotherapy.Material and Methods. The study included 45 patients with locally advanced gastric cancer. Neoadjuvant hyperfractionated accelerated radiotherapy at a total dose of 45 Gy was given concurrently with capecitabine and oxaliplatin chemotherapy. There were more men than women. The median age of the patients was 62 years. Tumors were most commonly located in the upper (46 %) and middle (38 %) thirds of the stomach. Low-grade adenocarcinoma and signet-ring cell carcinoma were the most common (65 %). According to a comprehensive examination, including CT and laparoscopy, tumors which invaded the subserous layer of the stomach wall were diagnosed in 17 (37.8 %) patients, and tumors which penetrated the serous layer or surrounding structures were found in 28 (62.2 %) patients. Regional lymph node metastases were detected in 38 (84.4 %) cases.Results. The absolute majority of patients underwent gastrectomy (43 patients, 96 %). Grade IaIb pathological response occurred in almost half of the patients (45.4 % of cases). Peritoneal metastases were found to be the most common mode of cancer dissemination; they were mostly observed in patients with poorly differentiated gastric cancer. Multivariate analysis revealed no effect of any of the factors characterizing the patient, tumor and completeness of treatment on the pathological response grade. However, a correlation between the clinical and morphological assessments of tumor regression was observed. In cases with complete or partial responses of the primary tumor and regional lymph nodes to chemoradiotherapy, 1aIb grades of pathological response were more frequently observed. It was also demonstrated a direct correlation between the pathological response grade and pathomorphological stage of the tumor (yp), as well as ypT and ypN categories. Analysis of long-term treatment outcomes showed that the overall and relapse-free 5-year survival rates were significantly higher in patients with 1a and Ib grades of pathological response. The overall 3-year survival rates were 70 ± 10 % and 41 ± 11 %, respectively (p=0.003). Multivariate analysis using the Cox regression model confirmed a statistically significant independent effect of the pathological response grade on the overall survival (p=0.015).Conclusion. Grade IaIb pathological response was observed in almost half of the patients, who received neoadjuvant chemoradiotherapy for locally advanced gastric cancer. No clinical and morphological factors influencing the pathological response grade were found. A correlation between the clinical and morphological assessments of tumor regression was observed. Patients with Ia-Ib pathological response had significantly higher overall and disease-free survival rates. Ausführliche Beschreibung

Gespeichert in:

Autor*in:	V. Yu. Skoropad [verfasserIn] D. D. Kudriavtsev [verfasserIn] L. N. Titova [verfasserIn] S. A. Moserov [verfasserIn] T. A. Agababyan [verfasserIn] S. A. Ivanov [verfasserIn] A. D. Kaprin [verfasserIn]

Format:	E-Artikel
Sprache:	Russisch

Erschienen:	2020

Schlagwörter:	рак желудка неоадъювантная химиолучевая терапия комбинированное лечение лечебный патоморфоз выживаемость

Übergeordnetes Werk:	In: Сибирский онкологический журнал - Russian Academy of Sciences, Tomsk National Research Medical Center, 2017, 19(2020), 3, Seite 38-46
Übergeordnetes Werk:	volume:19 ; year:2020 ; number:3 ; pages:38-46

Links:	Link aufrufen Link aufrufen Link aufrufen Journal toc Journal toc

DOI / URN:	10.21294/1814-4861-2020-19-3-38-46

Katalog-ID:	DOAJ02995469X

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245	1	0	\|a PATHOLOGICAL COMPLETE RESPONSE TO NEOADJUVANT CHEMORADIOTHERAPY IN PATIENTS WITH LOCALLY ADVANCED GASTRIC CANCER
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520			\|a The impact of pathological complete response (pCR) on long-term treatment outcomes was analyzed in patients with locally advanced gastric cancer, who received prolonged neoadjuvant chemoradiotherapy.Material and Methods. The study included 45 patients with locally advanced gastric cancer. Neoadjuvant hyperfractionated accelerated radiotherapy at a total dose of 45 Gy was given concurrently with capecitabine and oxaliplatin chemotherapy. There were more men than women. The median age of the patients was 62 years. Tumors were most commonly located in the upper (46 %) and middle (38 %) thirds of the stomach. Low-grade adenocarcinoma and signet-ring cell carcinoma were the most common (65 %). According to a comprehensive examination, including CT and laparoscopy, tumors which invaded the subserous layer of the stomach wall were diagnosed in 17 (37.8 %) patients, and tumors which penetrated the serous layer or surrounding structures were found in 28 (62.2 %) patients. Regional lymph node metastases were detected in 38 (84.4 %) cases.Results. The absolute majority of patients underwent gastrectomy (43 patients, 96 %). Grade IaIb pathological response occurred in almost half of the patients (45.4 % of cases). Peritoneal metastases were found to be the most common mode of cancer dissemination; they were mostly observed in patients with poorly differentiated gastric cancer. Multivariate analysis revealed no effect of any of the factors characterizing the patient, tumor and completeness of treatment on the pathological response grade. However, a correlation between the clinical and morphological assessments of tumor regression was observed. In cases with complete or partial responses of the primary tumor and regional lymph nodes to chemoradiotherapy, 1aIb grades of pathological response were more frequently observed. It was also demonstrated a direct correlation between the pathological response grade and pathomorphological stage of the tumor (yp), as well as ypT and ypN categories. Analysis of long-term treatment outcomes showed that the overall and relapse-free 5-year survival rates were significantly higher in patients with 1a and Ib grades of pathological response. The overall 3-year survival rates were 70 ± 10 % and 41 ± 11 %, respectively (p=0.003). Multivariate analysis using the Cox regression model confirmed a statistically significant independent effect of the pathological response grade on the overall survival (p=0.015).Conclusion. Grade IaIb pathological response was observed in almost half of the patients, who received neoadjuvant chemoradiotherapy for locally advanced gastric cancer. No clinical and morphological factors influencing the pathological response grade were found. A correlation between the clinical and morphological assessments of tumor regression was observed. Patients with Ia-Ib pathological response had significantly higher overall and disease-free survival rates.
650		4	\|a рак желудка
650		4	\|a неоадъювантная химиолучевая терапия
650		4	\|a комбинированное лечение
650		4	\|a лечебный патоморфоз
650		4	\|a выживаемость
653		0	\|a Neoplasms. Tumors. Oncology. Including cancer and carcinogens
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700	0		\|a A. D. Kaprin \|e verfasserin \|4 aut
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author_variant	v y s vys d d k ddk l n t lnt s a m sam t a a taa s a i sai a d k adk
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allfields	10.21294/1814-4861-2020-19-3-38-46 doi (DE-627)DOAJ02995469X (DE-599)DOAJab9c15bd65464271aa52dbf2e7546ef5 DE-627 ger DE-627 rakwb rus RC254-282 V. Yu. Skoropad verfasserin aut PATHOLOGICAL COMPLETE RESPONSE TO NEOADJUVANT CHEMORADIOTHERAPY IN PATIENTS WITH LOCALLY ADVANCED GASTRIC CANCER 2020 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier The impact of pathological complete response (pCR) on long-term treatment outcomes was analyzed in patients with locally advanced gastric cancer, who received prolonged neoadjuvant chemoradiotherapy.Material and Methods. The study included 45 patients with locally advanced gastric cancer. Neoadjuvant hyperfractionated accelerated radiotherapy at a total dose of 45 Gy was given concurrently with capecitabine and oxaliplatin chemotherapy. There were more men than women. The median age of the patients was 62 years. Tumors were most commonly located in the upper (46 %) and middle (38 %) thirds of the stomach. Low-grade adenocarcinoma and signet-ring cell carcinoma were the most common (65 %). According to a comprehensive examination, including CT and laparoscopy, tumors which invaded the subserous layer of the stomach wall were diagnosed in 17 (37.8 %) patients, and tumors which penetrated the serous layer or surrounding structures were found in 28 (62.2 %) patients. Regional lymph node metastases were detected in 38 (84.4 %) cases.Results. The absolute majority of patients underwent gastrectomy (43 patients, 96 %). Grade IaIb pathological response occurred in almost half of the patients (45.4 % of cases). Peritoneal metastases were found to be the most common mode of cancer dissemination; they were mostly observed in patients with poorly differentiated gastric cancer. Multivariate analysis revealed no effect of any of the factors characterizing the patient, tumor and completeness of treatment on the pathological response grade. However, a correlation between the clinical and morphological assessments of tumor regression was observed. In cases with complete or partial responses of the primary tumor and regional lymph nodes to chemoradiotherapy, 1aIb grades of pathological response were more frequently observed. It was also demonstrated a direct correlation between the pathological response grade and pathomorphological stage of the tumor (yp), as well as ypT and ypN categories. Analysis of long-term treatment outcomes showed that the overall and relapse-free 5-year survival rates were significantly higher in patients with 1a and Ib grades of pathological response. The overall 3-year survival rates were 70 ± 10 % and 41 ± 11 %, respectively (p=0.003). Multivariate analysis using the Cox regression model confirmed a statistically significant independent effect of the pathological response grade on the overall survival (p=0.015).Conclusion. Grade IaIb pathological response was observed in almost half of the patients, who received neoadjuvant chemoradiotherapy for locally advanced gastric cancer. No clinical and morphological factors influencing the pathological response grade were found. A correlation between the clinical and morphological assessments of tumor regression was observed. Patients with Ia-Ib pathological response had significantly higher overall and disease-free survival rates. рак желудка неоадъювантная химиолучевая терапия комбинированное лечение лечебный патоморфоз выживаемость Neoplasms. Tumors. Oncology. Including cancer and carcinogens D. D. Kudriavtsev verfasserin aut L. N. Titova verfasserin aut S. A. Moserov verfasserin aut T. A. Agababyan verfasserin aut S. A. Ivanov verfasserin aut A. D. Kaprin verfasserin aut In Сибирский онкологический журнал Russian Academy of Sciences, Tomsk National Research Medical Center, 2017 19(2020), 3, Seite 38-46 (DE-627)731335074 (DE-600)2693095-X 23123168 nnns volume:19 year:2020 number:3 pages:38-46 https://doi.org/10.21294/1814-4861-2020-19-3-38-46 kostenfrei https://doaj.org/article/ab9c15bd65464271aa52dbf2e7546ef5 kostenfrei https://www.siboncoj.ru/jour/article/view/1485 kostenfrei https://doaj.org/toc/1814-4861 Journal toc kostenfrei https://doaj.org/toc/2312-3168 Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ SSG-OLC-PHA GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_73 GBV_ILN_74 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_206 GBV_ILN_213 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_602 GBV_ILN_2014 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4700 AR 19 2020 3 38-46
spelling	10.21294/1814-4861-2020-19-3-38-46 doi (DE-627)DOAJ02995469X (DE-599)DOAJab9c15bd65464271aa52dbf2e7546ef5 DE-627 ger DE-627 rakwb rus RC254-282 V. Yu. Skoropad verfasserin aut PATHOLOGICAL COMPLETE RESPONSE TO NEOADJUVANT CHEMORADIOTHERAPY IN PATIENTS WITH LOCALLY ADVANCED GASTRIC CANCER 2020 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier The impact of pathological complete response (pCR) on long-term treatment outcomes was analyzed in patients with locally advanced gastric cancer, who received prolonged neoadjuvant chemoradiotherapy.Material and Methods. The study included 45 patients with locally advanced gastric cancer. Neoadjuvant hyperfractionated accelerated radiotherapy at a total dose of 45 Gy was given concurrently with capecitabine and oxaliplatin chemotherapy. There were more men than women. The median age of the patients was 62 years. Tumors were most commonly located in the upper (46 %) and middle (38 %) thirds of the stomach. Low-grade adenocarcinoma and signet-ring cell carcinoma were the most common (65 %). According to a comprehensive examination, including CT and laparoscopy, tumors which invaded the subserous layer of the stomach wall were diagnosed in 17 (37.8 %) patients, and tumors which penetrated the serous layer or surrounding structures were found in 28 (62.2 %) patients. Regional lymph node metastases were detected in 38 (84.4 %) cases.Results. The absolute majority of patients underwent gastrectomy (43 patients, 96 %). Grade IaIb pathological response occurred in almost half of the patients (45.4 % of cases). Peritoneal metastases were found to be the most common mode of cancer dissemination; they were mostly observed in patients with poorly differentiated gastric cancer. Multivariate analysis revealed no effect of any of the factors characterizing the patient, tumor and completeness of treatment on the pathological response grade. However, a correlation between the clinical and morphological assessments of tumor regression was observed. In cases with complete or partial responses of the primary tumor and regional lymph nodes to chemoradiotherapy, 1aIb grades of pathological response were more frequently observed. It was also demonstrated a direct correlation between the pathological response grade and pathomorphological stage of the tumor (yp), as well as ypT and ypN categories. Analysis of long-term treatment outcomes showed that the overall and relapse-free 5-year survival rates were significantly higher in patients with 1a and Ib grades of pathological response. The overall 3-year survival rates were 70 ± 10 % and 41 ± 11 %, respectively (p=0.003). Multivariate analysis using the Cox regression model confirmed a statistically significant independent effect of the pathological response grade on the overall survival (p=0.015).Conclusion. Grade IaIb pathological response was observed in almost half of the patients, who received neoadjuvant chemoradiotherapy for locally advanced gastric cancer. No clinical and morphological factors influencing the pathological response grade were found. A correlation between the clinical and morphological assessments of tumor regression was observed. Patients with Ia-Ib pathological response had significantly higher overall and disease-free survival rates. рак желудка неоадъювантная химиолучевая терапия комбинированное лечение лечебный патоморфоз выживаемость Neoplasms. Tumors. Oncology. Including cancer and carcinogens D. D. Kudriavtsev verfasserin aut L. N. Titova verfasserin aut S. A. Moserov verfasserin aut T. A. Agababyan verfasserin aut S. A. Ivanov verfasserin aut A. D. Kaprin verfasserin aut In Сибирский онкологический журнал Russian Academy of Sciences, Tomsk National Research Medical Center, 2017 19(2020), 3, Seite 38-46 (DE-627)731335074 (DE-600)2693095-X 23123168 nnns volume:19 year:2020 number:3 pages:38-46 https://doi.org/10.21294/1814-4861-2020-19-3-38-46 kostenfrei https://doaj.org/article/ab9c15bd65464271aa52dbf2e7546ef5 kostenfrei https://www.siboncoj.ru/jour/article/view/1485 kostenfrei https://doaj.org/toc/1814-4861 Journal toc kostenfrei https://doaj.org/toc/2312-3168 Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ SSG-OLC-PHA GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_73 GBV_ILN_74 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_206 GBV_ILN_213 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_602 GBV_ILN_2014 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4700 AR 19 2020 3 38-46
allfields_unstemmed	10.21294/1814-4861-2020-19-3-38-46 doi (DE-627)DOAJ02995469X (DE-599)DOAJab9c15bd65464271aa52dbf2e7546ef5 DE-627 ger DE-627 rakwb rus RC254-282 V. Yu. Skoropad verfasserin aut PATHOLOGICAL COMPLETE RESPONSE TO NEOADJUVANT CHEMORADIOTHERAPY IN PATIENTS WITH LOCALLY ADVANCED GASTRIC CANCER 2020 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier The impact of pathological complete response (pCR) on long-term treatment outcomes was analyzed in patients with locally advanced gastric cancer, who received prolonged neoadjuvant chemoradiotherapy.Material and Methods. The study included 45 patients with locally advanced gastric cancer. Neoadjuvant hyperfractionated accelerated radiotherapy at a total dose of 45 Gy was given concurrently with capecitabine and oxaliplatin chemotherapy. There were more men than women. The median age of the patients was 62 years. Tumors were most commonly located in the upper (46 %) and middle (38 %) thirds of the stomach. Low-grade adenocarcinoma and signet-ring cell carcinoma were the most common (65 %). According to a comprehensive examination, including CT and laparoscopy, tumors which invaded the subserous layer of the stomach wall were diagnosed in 17 (37.8 %) patients, and tumors which penetrated the serous layer or surrounding structures were found in 28 (62.2 %) patients. Regional lymph node metastases were detected in 38 (84.4 %) cases.Results. The absolute majority of patients underwent gastrectomy (43 patients, 96 %). Grade IaIb pathological response occurred in almost half of the patients (45.4 % of cases). Peritoneal metastases were found to be the most common mode of cancer dissemination; they were mostly observed in patients with poorly differentiated gastric cancer. Multivariate analysis revealed no effect of any of the factors characterizing the patient, tumor and completeness of treatment on the pathological response grade. However, a correlation between the clinical and morphological assessments of tumor regression was observed. In cases with complete or partial responses of the primary tumor and regional lymph nodes to chemoradiotherapy, 1aIb grades of pathological response were more frequently observed. It was also demonstrated a direct correlation between the pathological response grade and pathomorphological stage of the tumor (yp), as well as ypT and ypN categories. Analysis of long-term treatment outcomes showed that the overall and relapse-free 5-year survival rates were significantly higher in patients with 1a and Ib grades of pathological response. The overall 3-year survival rates were 70 ± 10 % and 41 ± 11 %, respectively (p=0.003). Multivariate analysis using the Cox regression model confirmed a statistically significant independent effect of the pathological response grade on the overall survival (p=0.015).Conclusion. Grade IaIb pathological response was observed in almost half of the patients, who received neoadjuvant chemoradiotherapy for locally advanced gastric cancer. No clinical and morphological factors influencing the pathological response grade were found. A correlation between the clinical and morphological assessments of tumor regression was observed. Patients with Ia-Ib pathological response had significantly higher overall and disease-free survival rates. рак желудка неоадъювантная химиолучевая терапия комбинированное лечение лечебный патоморфоз выживаемость Neoplasms. Tumors. Oncology. Including cancer and carcinogens D. D. Kudriavtsev verfasserin aut L. N. Titova verfasserin aut S. A. Moserov verfasserin aut T. A. Agababyan verfasserin aut S. A. Ivanov verfasserin aut A. D. Kaprin verfasserin aut In Сибирский онкологический журнал Russian Academy of Sciences, Tomsk National Research Medical Center, 2017 19(2020), 3, Seite 38-46 (DE-627)731335074 (DE-600)2693095-X 23123168 nnns volume:19 year:2020 number:3 pages:38-46 https://doi.org/10.21294/1814-4861-2020-19-3-38-46 kostenfrei https://doaj.org/article/ab9c15bd65464271aa52dbf2e7546ef5 kostenfrei https://www.siboncoj.ru/jour/article/view/1485 kostenfrei https://doaj.org/toc/1814-4861 Journal toc kostenfrei https://doaj.org/toc/2312-3168 Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ SSG-OLC-PHA GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_73 GBV_ILN_74 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_206 GBV_ILN_213 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_602 GBV_ILN_2014 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4700 AR 19 2020 3 38-46
allfieldsGer	10.21294/1814-4861-2020-19-3-38-46 doi (DE-627)DOAJ02995469X (DE-599)DOAJab9c15bd65464271aa52dbf2e7546ef5 DE-627 ger DE-627 rakwb rus RC254-282 V. Yu. Skoropad verfasserin aut PATHOLOGICAL COMPLETE RESPONSE TO NEOADJUVANT CHEMORADIOTHERAPY IN PATIENTS WITH LOCALLY ADVANCED GASTRIC CANCER 2020 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier The impact of pathological complete response (pCR) on long-term treatment outcomes was analyzed in patients with locally advanced gastric cancer, who received prolonged neoadjuvant chemoradiotherapy.Material and Methods. The study included 45 patients with locally advanced gastric cancer. Neoadjuvant hyperfractionated accelerated radiotherapy at a total dose of 45 Gy was given concurrently with capecitabine and oxaliplatin chemotherapy. There were more men than women. The median age of the patients was 62 years. Tumors were most commonly located in the upper (46 %) and middle (38 %) thirds of the stomach. Low-grade adenocarcinoma and signet-ring cell carcinoma were the most common (65 %). According to a comprehensive examination, including CT and laparoscopy, tumors which invaded the subserous layer of the stomach wall were diagnosed in 17 (37.8 %) patients, and tumors which penetrated the serous layer or surrounding structures were found in 28 (62.2 %) patients. Regional lymph node metastases were detected in 38 (84.4 %) cases.Results. The absolute majority of patients underwent gastrectomy (43 patients, 96 %). Grade IaIb pathological response occurred in almost half of the patients (45.4 % of cases). Peritoneal metastases were found to be the most common mode of cancer dissemination; they were mostly observed in patients with poorly differentiated gastric cancer. Multivariate analysis revealed no effect of any of the factors characterizing the patient, tumor and completeness of treatment on the pathological response grade. However, a correlation between the clinical and morphological assessments of tumor regression was observed. In cases with complete or partial responses of the primary tumor and regional lymph nodes to chemoradiotherapy, 1aIb grades of pathological response were more frequently observed. It was also demonstrated a direct correlation between the pathological response grade and pathomorphological stage of the tumor (yp), as well as ypT and ypN categories. Analysis of long-term treatment outcomes showed that the overall and relapse-free 5-year survival rates were significantly higher in patients with 1a and Ib grades of pathological response. The overall 3-year survival rates were 70 ± 10 % and 41 ± 11 %, respectively (p=0.003). Multivariate analysis using the Cox regression model confirmed a statistically significant independent effect of the pathological response grade on the overall survival (p=0.015).Conclusion. Grade IaIb pathological response was observed in almost half of the patients, who received neoadjuvant chemoradiotherapy for locally advanced gastric cancer. No clinical and morphological factors influencing the pathological response grade were found. A correlation between the clinical and morphological assessments of tumor regression was observed. Patients with Ia-Ib pathological response had significantly higher overall and disease-free survival rates. рак желудка неоадъювантная химиолучевая терапия комбинированное лечение лечебный патоморфоз выживаемость Neoplasms. Tumors. Oncology. Including cancer and carcinogens D. D. Kudriavtsev verfasserin aut L. N. Titova verfasserin aut S. A. Moserov verfasserin aut T. A. Agababyan verfasserin aut S. A. Ivanov verfasserin aut A. D. Kaprin verfasserin aut In Сибирский онкологический журнал Russian Academy of Sciences, Tomsk National Research Medical Center, 2017 19(2020), 3, Seite 38-46 (DE-627)731335074 (DE-600)2693095-X 23123168 nnns volume:19 year:2020 number:3 pages:38-46 https://doi.org/10.21294/1814-4861-2020-19-3-38-46 kostenfrei https://doaj.org/article/ab9c15bd65464271aa52dbf2e7546ef5 kostenfrei https://www.siboncoj.ru/jour/article/view/1485 kostenfrei https://doaj.org/toc/1814-4861 Journal toc kostenfrei https://doaj.org/toc/2312-3168 Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ SSG-OLC-PHA GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_73 GBV_ILN_74 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_206 GBV_ILN_213 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_602 GBV_ILN_2014 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4700 AR 19 2020 3 38-46
allfieldsSound	10.21294/1814-4861-2020-19-3-38-46 doi (DE-627)DOAJ02995469X (DE-599)DOAJab9c15bd65464271aa52dbf2e7546ef5 DE-627 ger DE-627 rakwb rus RC254-282 V. Yu. Skoropad verfasserin aut PATHOLOGICAL COMPLETE RESPONSE TO NEOADJUVANT CHEMORADIOTHERAPY IN PATIENTS WITH LOCALLY ADVANCED GASTRIC CANCER 2020 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier The impact of pathological complete response (pCR) on long-term treatment outcomes was analyzed in patients with locally advanced gastric cancer, who received prolonged neoadjuvant chemoradiotherapy.Material and Methods. The study included 45 patients with locally advanced gastric cancer. Neoadjuvant hyperfractionated accelerated radiotherapy at a total dose of 45 Gy was given concurrently with capecitabine and oxaliplatin chemotherapy. There were more men than women. The median age of the patients was 62 years. Tumors were most commonly located in the upper (46 %) and middle (38 %) thirds of the stomach. Low-grade adenocarcinoma and signet-ring cell carcinoma were the most common (65 %). According to a comprehensive examination, including CT and laparoscopy, tumors which invaded the subserous layer of the stomach wall were diagnosed in 17 (37.8 %) patients, and tumors which penetrated the serous layer or surrounding structures were found in 28 (62.2 %) patients. Regional lymph node metastases were detected in 38 (84.4 %) cases.Results. The absolute majority of patients underwent gastrectomy (43 patients, 96 %). Grade IaIb pathological response occurred in almost half of the patients (45.4 % of cases). Peritoneal metastases were found to be the most common mode of cancer dissemination; they were mostly observed in patients with poorly differentiated gastric cancer. Multivariate analysis revealed no effect of any of the factors characterizing the patient, tumor and completeness of treatment on the pathological response grade. However, a correlation between the clinical and morphological assessments of tumor regression was observed. In cases with complete or partial responses of the primary tumor and regional lymph nodes to chemoradiotherapy, 1aIb grades of pathological response were more frequently observed. It was also demonstrated a direct correlation between the pathological response grade and pathomorphological stage of the tumor (yp), as well as ypT and ypN categories. Analysis of long-term treatment outcomes showed that the overall and relapse-free 5-year survival rates were significantly higher in patients with 1a and Ib grades of pathological response. The overall 3-year survival rates were 70 ± 10 % and 41 ± 11 %, respectively (p=0.003). Multivariate analysis using the Cox regression model confirmed a statistically significant independent effect of the pathological response grade on the overall survival (p=0.015).Conclusion. Grade IaIb pathological response was observed in almost half of the patients, who received neoadjuvant chemoradiotherapy for locally advanced gastric cancer. No clinical and morphological factors influencing the pathological response grade were found. A correlation between the clinical and morphological assessments of tumor regression was observed. Patients with Ia-Ib pathological response had significantly higher overall and disease-free survival rates. рак желудка неоадъювантная химиолучевая терапия комбинированное лечение лечебный патоморфоз выживаемость Neoplasms. Tumors. Oncology. Including cancer and carcinogens D. D. Kudriavtsev verfasserin aut L. N. Titova verfasserin aut S. A. Moserov verfasserin aut T. A. Agababyan verfasserin aut S. A. Ivanov verfasserin aut A. D. Kaprin verfasserin aut In Сибирский онкологический журнал Russian Academy of Sciences, Tomsk National Research Medical Center, 2017 19(2020), 3, Seite 38-46 (DE-627)731335074 (DE-600)2693095-X 23123168 nnns volume:19 year:2020 number:3 pages:38-46 https://doi.org/10.21294/1814-4861-2020-19-3-38-46 kostenfrei https://doaj.org/article/ab9c15bd65464271aa52dbf2e7546ef5 kostenfrei https://www.siboncoj.ru/jour/article/view/1485 kostenfrei https://doaj.org/toc/1814-4861 Journal toc kostenfrei https://doaj.org/toc/2312-3168 Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ SSG-OLC-PHA GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_73 GBV_ILN_74 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_206 GBV_ILN_213 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_602 GBV_ILN_2014 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4700 AR 19 2020 3 38-46
language	Russian
source	In Сибирский онкологический журнал 19(2020), 3, Seite 38-46 volume:19 year:2020 number:3 pages:38-46
sourceStr	In Сибирский онкологический журнал 19(2020), 3, Seite 38-46 volume:19 year:2020 number:3 pages:38-46
format_phy_str_mv	Article
institution	findex.gbv.de
topic_facet	рак желудка неоадъювантная химиолучевая терапия комбинированное лечение лечебный патоморфоз выживаемость Neoplasms. Tumors. Oncology. Including cancer and carcinogens
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container_title	Сибирский онкологический журнал
authorswithroles_txt_mv	V. Yu. Skoropad @@aut@@ D. D. Kudriavtsev @@aut@@ L. N. Titova @@aut@@ S. A. Moserov @@aut@@ T. A. Agababyan @@aut@@ S. A. Ivanov @@aut@@ A. D. Kaprin @@aut@@
publishDateDaySort_date	2020-01-01T00:00:00Z
hierarchy_top_id	731335074
id	DOAJ02995469X
language_de	russisch
fullrecord	<?xml version="1.0" encoding="UTF-8"?><collection xmlns="http://www.loc.gov/MARC21/slim"><record><leader>01000caa a22002652 4500</leader><controlfield tag="001">DOAJ02995469X</controlfield><controlfield tag="003">DE-627</controlfield><controlfield tag="005">20230503005005.0</controlfield><controlfield tag="007">cr uuu---uuuuu</controlfield><controlfield tag="008">230226s2020 xx \|\|\|\|\|o 00\| \|\|rus c</controlfield><datafield tag="024" ind1="7" ind2=" "><subfield code="a">10.21294/1814-4861-2020-19-3-38-46</subfield><subfield code="2">doi</subfield></datafield><datafield tag="035" ind1=" " ind2=" "><subfield code="a">(DE-627)DOAJ02995469X</subfield></datafield><datafield tag="035" ind1=" " ind2=" "><subfield code="a">(DE-599)DOAJab9c15bd65464271aa52dbf2e7546ef5</subfield></datafield><datafield tag="040" ind1=" " ind2=" "><subfield code="a">DE-627</subfield><subfield code="b">ger</subfield><subfield code="c">DE-627</subfield><subfield code="e">rakwb</subfield></datafield><datafield tag="041" ind1=" " ind2=" "><subfield code="a">rus</subfield></datafield><datafield tag="050" ind1=" " ind2="0"><subfield code="a">RC254-282</subfield></datafield><datafield tag="100" ind1="0" ind2=" "><subfield code="a">V. Yu. Skoropad</subfield><subfield code="e">verfasserin</subfield><subfield code="4">aut</subfield></datafield><datafield tag="245" ind1="1" ind2="0"><subfield code="a">PATHOLOGICAL COMPLETE RESPONSE TO NEOADJUVANT CHEMORADIOTHERAPY IN PATIENTS WITH LOCALLY ADVANCED GASTRIC CANCER</subfield></datafield><datafield tag="264" ind1=" " ind2="1"><subfield code="c">2020</subfield></datafield><datafield tag="336" ind1=" " ind2=" "><subfield code="a">Text</subfield><subfield code="b">txt</subfield><subfield code="2">rdacontent</subfield></datafield><datafield tag="337" ind1=" " ind2=" "><subfield code="a">Computermedien</subfield><subfield code="b">c</subfield><subfield code="2">rdamedia</subfield></datafield><datafield tag="338" ind1=" " ind2=" "><subfield code="a">Online-Ressource</subfield><subfield code="b">cr</subfield><subfield code="2">rdacarrier</subfield></datafield><datafield tag="520" ind1=" " ind2=" "><subfield code="a">The impact of pathological complete response (pCR) on long-term treatment outcomes was analyzed in patients with locally advanced gastric cancer, who received prolonged neoadjuvant chemoradiotherapy.Material and Methods. The study included 45 patients with locally advanced gastric cancer. Neoadjuvant hyperfractionated accelerated radiotherapy at a total dose of 45 Gy was given concurrently with capecitabine and oxaliplatin chemotherapy. There were more men than women. The median age of the patients was 62 years. Tumors were most commonly located in the upper (46 %) and middle (38 %) thirds of the stomach. Low-grade adenocarcinoma and signet-ring cell carcinoma were the most common (65 %). According to a comprehensive examination, including CT and laparoscopy, tumors which invaded the subserous layer of the stomach wall were diagnosed in 17 (37.8 %) patients, and tumors which penetrated the serous layer or surrounding structures were found in 28 (62.2 %) patients. Regional lymph node metastases were detected in 38 (84.4 %) cases.Results. The absolute majority of patients underwent gastrectomy (43 patients, 96 %). Grade IaIb pathological response occurred in almost half of the patients (45.4 % of cases). Peritoneal metastases were found to be the most common mode of cancer dissemination; they were mostly observed in patients with poorly differentiated gastric cancer. Multivariate analysis revealed no effect of any of the factors characterizing the patient, tumor and completeness of treatment on the pathological response grade. However, a correlation between the clinical and morphological assessments of tumor regression was observed. In cases with complete or partial responses of the primary tumor and regional lymph nodes to chemoradiotherapy, 1aIb grades of pathological response were more frequently observed. It was also demonstrated a direct correlation between the pathological response grade and pathomorphological stage of the tumor (yp), as well as ypT and ypN categories. Analysis of long-term treatment outcomes showed that the overall and relapse-free 5-year survival rates were significantly higher in patients with 1a and Ib grades of pathological response. The overall 3-year survival rates were 70 ± 10 % and 41 ± 11 %, respectively (p=0.003). Multivariate analysis using the Cox regression model confirmed a statistically significant independent effect of the pathological response grade on the overall survival (p=0.015).Conclusion. Grade IaIb pathological response was observed in almost half of the patients, who received neoadjuvant chemoradiotherapy for locally advanced gastric cancer. No clinical and morphological factors influencing the pathological response grade were found. A correlation between the clinical and morphological assessments of tumor regression was observed. 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callnumber-first	R - Medicine
author	V. Yu. Skoropad
spellingShingle	V. Yu. Skoropad misc RC254-282 misc рак желудка misc неоадъювантная химиолучевая терапия misc комбинированное лечение misc лечебный патоморфоз misc выживаемость misc Neoplasms. Tumors. Oncology. Including cancer and carcinogens PATHOLOGICAL COMPLETE RESPONSE TO NEOADJUVANT CHEMORADIOTHERAPY IN PATIENTS WITH LOCALLY ADVANCED GASTRIC CANCER
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topic_title	RC254-282 PATHOLOGICAL COMPLETE RESPONSE TO NEOADJUVANT CHEMORADIOTHERAPY IN PATIENTS WITH LOCALLY ADVANCED GASTRIC CANCER рак желудка неоадъювантная химиолучевая терапия комбинированное лечение лечебный патоморфоз выживаемость
topic	misc RC254-282 misc рак желудка misc неоадъювантная химиолучевая терапия misc комбинированное лечение misc лечебный патоморфоз misc выживаемость misc Neoplasms. Tumors. Oncology. Including cancer and carcinogens
topic_unstemmed	misc RC254-282 misc рак желудка misc неоадъювантная химиолучевая терапия misc комбинированное лечение misc лечебный патоморфоз misc выживаемость misc Neoplasms. Tumors. Oncology. Including cancer and carcinogens
topic_browse	misc RC254-282 misc рак желудка misc неоадъювантная химиолучевая терапия misc комбинированное лечение misc лечебный патоморфоз misc выживаемость misc Neoplasms. Tumors. Oncology. Including cancer and carcinogens
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title	PATHOLOGICAL COMPLETE RESPONSE TO NEOADJUVANT CHEMORADIOTHERAPY IN PATIENTS WITH LOCALLY ADVANCED GASTRIC CANCER
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title_full	PATHOLOGICAL COMPLETE RESPONSE TO NEOADJUVANT CHEMORADIOTHERAPY IN PATIENTS WITH LOCALLY ADVANCED GASTRIC CANCER
author_sort	V. Yu. Skoropad
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author_browse	V. Yu. Skoropad D. D. Kudriavtsev L. N. Titova S. A. Moserov T. A. Agababyan S. A. Ivanov A. D. Kaprin
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title_sort	pathological complete response to neoadjuvant chemoradiotherapy in patients with locally advanced gastric cancer
callnumber	RC254-282
title_auth	PATHOLOGICAL COMPLETE RESPONSE TO NEOADJUVANT CHEMORADIOTHERAPY IN PATIENTS WITH LOCALLY ADVANCED GASTRIC CANCER
abstract	The impact of pathological complete response (pCR) on long-term treatment outcomes was analyzed in patients with locally advanced gastric cancer, who received prolonged neoadjuvant chemoradiotherapy.Material and Methods. The study included 45 patients with locally advanced gastric cancer. Neoadjuvant hyperfractionated accelerated radiotherapy at a total dose of 45 Gy was given concurrently with capecitabine and oxaliplatin chemotherapy. There were more men than women. The median age of the patients was 62 years. Tumors were most commonly located in the upper (46 %) and middle (38 %) thirds of the stomach. Low-grade adenocarcinoma and signet-ring cell carcinoma were the most common (65 %). According to a comprehensive examination, including CT and laparoscopy, tumors which invaded the subserous layer of the stomach wall were diagnosed in 17 (37.8 %) patients, and tumors which penetrated the serous layer or surrounding structures were found in 28 (62.2 %) patients. Regional lymph node metastases were detected in 38 (84.4 %) cases.Results. The absolute majority of patients underwent gastrectomy (43 patients, 96 %). Grade IaIb pathological response occurred in almost half of the patients (45.4 % of cases). Peritoneal metastases were found to be the most common mode of cancer dissemination; they were mostly observed in patients with poorly differentiated gastric cancer. Multivariate analysis revealed no effect of any of the factors characterizing the patient, tumor and completeness of treatment on the pathological response grade. However, a correlation between the clinical and morphological assessments of tumor regression was observed. In cases with complete or partial responses of the primary tumor and regional lymph nodes to chemoradiotherapy, 1aIb grades of pathological response were more frequently observed. It was also demonstrated a direct correlation between the pathological response grade and pathomorphological stage of the tumor (yp), as well as ypT and ypN categories. Analysis of long-term treatment outcomes showed that the overall and relapse-free 5-year survival rates were significantly higher in patients with 1a and Ib grades of pathological response. The overall 3-year survival rates were 70 ± 10 % and 41 ± 11 %, respectively (p=0.003). Multivariate analysis using the Cox regression model confirmed a statistically significant independent effect of the pathological response grade on the overall survival (p=0.015).Conclusion. Grade IaIb pathological response was observed in almost half of the patients, who received neoadjuvant chemoradiotherapy for locally advanced gastric cancer. No clinical and morphological factors influencing the pathological response grade were found. A correlation between the clinical and morphological assessments of tumor regression was observed. Patients with Ia-Ib pathological response had significantly higher overall and disease-free survival rates.
abstractGer	The impact of pathological complete response (pCR) on long-term treatment outcomes was analyzed in patients with locally advanced gastric cancer, who received prolonged neoadjuvant chemoradiotherapy.Material and Methods. The study included 45 patients with locally advanced gastric cancer. Neoadjuvant hyperfractionated accelerated radiotherapy at a total dose of 45 Gy was given concurrently with capecitabine and oxaliplatin chemotherapy. There were more men than women. The median age of the patients was 62 years. Tumors were most commonly located in the upper (46 %) and middle (38 %) thirds of the stomach. Low-grade adenocarcinoma and signet-ring cell carcinoma were the most common (65 %). According to a comprehensive examination, including CT and laparoscopy, tumors which invaded the subserous layer of the stomach wall were diagnosed in 17 (37.8 %) patients, and tumors which penetrated the serous layer or surrounding structures were found in 28 (62.2 %) patients. Regional lymph node metastases were detected in 38 (84.4 %) cases.Results. The absolute majority of patients underwent gastrectomy (43 patients, 96 %). Grade IaIb pathological response occurred in almost half of the patients (45.4 % of cases). Peritoneal metastases were found to be the most common mode of cancer dissemination; they were mostly observed in patients with poorly differentiated gastric cancer. Multivariate analysis revealed no effect of any of the factors characterizing the patient, tumor and completeness of treatment on the pathological response grade. However, a correlation between the clinical and morphological assessments of tumor regression was observed. In cases with complete or partial responses of the primary tumor and regional lymph nodes to chemoradiotherapy, 1aIb grades of pathological response were more frequently observed. It was also demonstrated a direct correlation between the pathological response grade and pathomorphological stage of the tumor (yp), as well as ypT and ypN categories. Analysis of long-term treatment outcomes showed that the overall and relapse-free 5-year survival rates were significantly higher in patients with 1a and Ib grades of pathological response. The overall 3-year survival rates were 70 ± 10 % and 41 ± 11 %, respectively (p=0.003). Multivariate analysis using the Cox regression model confirmed a statistically significant independent effect of the pathological response grade on the overall survival (p=0.015).Conclusion. Grade IaIb pathological response was observed in almost half of the patients, who received neoadjuvant chemoradiotherapy for locally advanced gastric cancer. No clinical and morphological factors influencing the pathological response grade were found. A correlation between the clinical and morphological assessments of tumor regression was observed. Patients with Ia-Ib pathological response had significantly higher overall and disease-free survival rates.
abstract_unstemmed	The impact of pathological complete response (pCR) on long-term treatment outcomes was analyzed in patients with locally advanced gastric cancer, who received prolonged neoadjuvant chemoradiotherapy.Material and Methods. The study included 45 patients with locally advanced gastric cancer. Neoadjuvant hyperfractionated accelerated radiotherapy at a total dose of 45 Gy was given concurrently with capecitabine and oxaliplatin chemotherapy. There were more men than women. The median age of the patients was 62 years. Tumors were most commonly located in the upper (46 %) and middle (38 %) thirds of the stomach. Low-grade adenocarcinoma and signet-ring cell carcinoma were the most common (65 %). According to a comprehensive examination, including CT and laparoscopy, tumors which invaded the subserous layer of the stomach wall were diagnosed in 17 (37.8 %) patients, and tumors which penetrated the serous layer or surrounding structures were found in 28 (62.2 %) patients. Regional lymph node metastases were detected in 38 (84.4 %) cases.Results. The absolute majority of patients underwent gastrectomy (43 patients, 96 %). Grade IaIb pathological response occurred in almost half of the patients (45.4 % of cases). Peritoneal metastases were found to be the most common mode of cancer dissemination; they were mostly observed in patients with poorly differentiated gastric cancer. Multivariate analysis revealed no effect of any of the factors characterizing the patient, tumor and completeness of treatment on the pathological response grade. However, a correlation between the clinical and morphological assessments of tumor regression was observed. In cases with complete or partial responses of the primary tumor and regional lymph nodes to chemoradiotherapy, 1aIb grades of pathological response were more frequently observed. It was also demonstrated a direct correlation between the pathological response grade and pathomorphological stage of the tumor (yp), as well as ypT and ypN categories. Analysis of long-term treatment outcomes showed that the overall and relapse-free 5-year survival rates were significantly higher in patients with 1a and Ib grades of pathological response. The overall 3-year survival rates were 70 ± 10 % and 41 ± 11 %, respectively (p=0.003). Multivariate analysis using the Cox regression model confirmed a statistically significant independent effect of the pathological response grade on the overall survival (p=0.015).Conclusion. Grade IaIb pathological response was observed in almost half of the patients, who received neoadjuvant chemoradiotherapy for locally advanced gastric cancer. No clinical and morphological factors influencing the pathological response grade were found. A correlation between the clinical and morphological assessments of tumor regression was observed. Patients with Ia-Ib pathological response had significantly higher overall and disease-free survival rates.
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title_short	PATHOLOGICAL COMPLETE RESPONSE TO NEOADJUVANT CHEMORADIOTHERAPY IN PATIENTS WITH LOCALLY ADVANCED GASTRIC CANCER
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Grade IaIb pathological response occurred in almost half of the patients (45.4 % of cases). Peritoneal metastases were found to be the most common mode of cancer dissemination; they were mostly observed in patients with poorly differentiated gastric cancer. Multivariate analysis revealed no effect of any of the factors characterizing the patient, tumor and completeness of treatment on the pathological response grade. However, a correlation between the clinical and morphological assessments of tumor regression was observed. In cases with complete or partial responses of the primary tumor and regional lymph nodes to chemoradiotherapy, 1aIb grades of pathological response were more frequently observed. It was also demonstrated a direct correlation between the pathological response grade and pathomorphological stage of the tumor (yp), as well as ypT and ypN categories. Analysis of long-term treatment outcomes showed that the overall and relapse-free 5-year survival rates were significantly higher in patients with 1a and Ib grades of pathological response. The overall 3-year survival rates were 70 ± 10 % and 41 ± 11 %, respectively (p=0.003). Multivariate analysis using the Cox regression model confirmed a statistically significant independent effect of the pathological response grade on the overall survival (p=0.015).Conclusion. Grade IaIb pathological response was observed in almost half of the patients, who received neoadjuvant chemoradiotherapy for locally advanced gastric cancer. No clinical and morphological factors influencing the pathological response grade were found. A correlation between the clinical and morphological assessments of tumor regression was observed. 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PATHOLOGICAL COMPLETE RESPONSE TO NEOADJUVANT CHEMORADIOTHERAPY IN PATIENTS WITH LOCALLY ADVANCED GASTRIC CANCER

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