Preoperative classification of submucosal fibrosis in colorectal laterally spreading tumors by endoscopic ultrasonography
Background and study aims: Although endoscopic submucosal dissection (ESD) is an established therapy for colon neoplasms including laterally spreading tumors (LSTs), its application to advanced fibrotic lesions is very difficult owing to the thin walls of the large intestine. We examined the ability...
Ausführliche Beschreibung
Autor*in: |
Tomoaki Makino [verfasserIn] Shuji Kanmura [verfasserIn] Fumisato Sasaki [verfasserIn] Yuichirou Nasu [verfasserIn] Keita Funakawa [verfasserIn] Akihito Tanaka [verfasserIn] Shiho Arima [verfasserIn] Junichi Nakazawa [verfasserIn] Hiroki Taguchi [verfasserIn] Shinichi Hashimoto [verfasserIn] Masatsugu Numata [verfasserIn] Hirofumi Uto [verfasserIn] Hirohito Tsubouchi [verfasserIn] Akio Ido [verfasserIn] |
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Format: |
E-Artikel |
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Sprache: |
Englisch |
Erschienen: |
2015 |
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Übergeordnetes Werk: |
In: Endoscopy International Open - Georg Thieme Verlag KG, 2014, 03(2015), 04, Seite E363-E367 |
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Übergeordnetes Werk: |
volume:03 ; year:2015 ; number:04 ; pages:E363-E367 |
Links: |
Link aufrufen |
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DOI / URN: |
10.1055/s-0034-1391782 |
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Katalog-ID: |
DOAJ052136329 |
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10.1055/s-0034-1391782 doi (DE-627)DOAJ052136329 (DE-599)DOAJ2be1081391cd4815b2aeed6dd2a5b671 DE-627 ger DE-627 rakwb eng RC799-869 Tomoaki Makino verfasserin aut Preoperative classification of submucosal fibrosis in colorectal laterally spreading tumors by endoscopic ultrasonography 2015 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Background and study aims: Although endoscopic submucosal dissection (ESD) is an established therapy for colon neoplasms including laterally spreading tumors (LSTs), its application to advanced fibrotic lesions is very difficult owing to the thin walls of the large intestine. We examined the ability of preoperative endoscopic ultrasonography (EUS) to predict lesion fibrosis in patients undergoing colorectal ESD. Patients and methods: From 2009 to 2013, 58 LSTs were evaluated retrospectively with EUS and treated using colorectal ESD. The degree of submucosal fibrosis was determined during ESD and classified as F0 (no fibrosis), F1 (mild fibrosis), or F2 (severe fibrosis). Results: The sensitivity and specificity of fibrosis prediction by preoperative EUS of all cases were 77.8 % and 57.1 %, respectively. However, there was a high accuracy (97.2 %, 35/36) for only the 36 LSTs with clear and visible images. In one case, EUS diagnosed no fibrosis but significant fibrosis was found during ESD, the result of colon cancer invasion into the submucosa. Conclusions: Preoperative EUS before colorectal ESD successfully predicted the degree of fibrosis in a number of cases. Diseases of the digestive system. Gastroenterology Shuji Kanmura verfasserin aut Fumisato Sasaki verfasserin aut Yuichirou Nasu verfasserin aut Keita Funakawa verfasserin aut Akihito Tanaka verfasserin aut Shiho Arima verfasserin aut Junichi Nakazawa verfasserin aut Hiroki Taguchi verfasserin aut Shinichi Hashimoto verfasserin aut Masatsugu Numata verfasserin aut Hirofumi Uto verfasserin aut Hirohito Tsubouchi verfasserin aut Akio Ido verfasserin aut In Endoscopy International Open Georg Thieme Verlag KG, 2014 03(2015), 04, Seite E363-E367 (DE-627)780383214 (DE-600)2761052-4 21969736 nnns volume:03 year:2015 number:04 pages:E363-E367 https://doi.org/10.1055/s-0034-1391782 kostenfrei https://doaj.org/article/2be1081391cd4815b2aeed6dd2a5b671 kostenfrei http://www.thieme-connect.de/DOI/DOI?10.1055/s-0034-1391782 kostenfrei https://doaj.org/toc/2364-3722 Journal toc kostenfrei https://doaj.org/toc/2196-9736 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_267 GBV_ILN_285 GBV_ILN_293 GBV_ILN_602 GBV_ILN_2014 GBV_ILN_2446 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 03 2015 04 E363-E367 |
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10.1055/s-0034-1391782 doi (DE-627)DOAJ052136329 (DE-599)DOAJ2be1081391cd4815b2aeed6dd2a5b671 DE-627 ger DE-627 rakwb eng RC799-869 Tomoaki Makino verfasserin aut Preoperative classification of submucosal fibrosis in colorectal laterally spreading tumors by endoscopic ultrasonography 2015 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Background and study aims: Although endoscopic submucosal dissection (ESD) is an established therapy for colon neoplasms including laterally spreading tumors (LSTs), its application to advanced fibrotic lesions is very difficult owing to the thin walls of the large intestine. We examined the ability of preoperative endoscopic ultrasonography (EUS) to predict lesion fibrosis in patients undergoing colorectal ESD. Patients and methods: From 2009 to 2013, 58 LSTs were evaluated retrospectively with EUS and treated using colorectal ESD. The degree of submucosal fibrosis was determined during ESD and classified as F0 (no fibrosis), F1 (mild fibrosis), or F2 (severe fibrosis). Results: The sensitivity and specificity of fibrosis prediction by preoperative EUS of all cases were 77.8 % and 57.1 %, respectively. However, there was a high accuracy (97.2 %, 35/36) for only the 36 LSTs with clear and visible images. In one case, EUS diagnosed no fibrosis but significant fibrosis was found during ESD, the result of colon cancer invasion into the submucosa. Conclusions: Preoperative EUS before colorectal ESD successfully predicted the degree of fibrosis in a number of cases. Diseases of the digestive system. Gastroenterology Shuji Kanmura verfasserin aut Fumisato Sasaki verfasserin aut Yuichirou Nasu verfasserin aut Keita Funakawa verfasserin aut Akihito Tanaka verfasserin aut Shiho Arima verfasserin aut Junichi Nakazawa verfasserin aut Hiroki Taguchi verfasserin aut Shinichi Hashimoto verfasserin aut Masatsugu Numata verfasserin aut Hirofumi Uto verfasserin aut Hirohito Tsubouchi verfasserin aut Akio Ido verfasserin aut In Endoscopy International Open Georg Thieme Verlag KG, 2014 03(2015), 04, Seite E363-E367 (DE-627)780383214 (DE-600)2761052-4 21969736 nnns volume:03 year:2015 number:04 pages:E363-E367 https://doi.org/10.1055/s-0034-1391782 kostenfrei https://doaj.org/article/2be1081391cd4815b2aeed6dd2a5b671 kostenfrei http://www.thieme-connect.de/DOI/DOI?10.1055/s-0034-1391782 kostenfrei https://doaj.org/toc/2364-3722 Journal toc kostenfrei https://doaj.org/toc/2196-9736 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_267 GBV_ILN_285 GBV_ILN_293 GBV_ILN_602 GBV_ILN_2014 GBV_ILN_2446 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 03 2015 04 E363-E367 |
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10.1055/s-0034-1391782 doi (DE-627)DOAJ052136329 (DE-599)DOAJ2be1081391cd4815b2aeed6dd2a5b671 DE-627 ger DE-627 rakwb eng RC799-869 Tomoaki Makino verfasserin aut Preoperative classification of submucosal fibrosis in colorectal laterally spreading tumors by endoscopic ultrasonography 2015 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Background and study aims: Although endoscopic submucosal dissection (ESD) is an established therapy for colon neoplasms including laterally spreading tumors (LSTs), its application to advanced fibrotic lesions is very difficult owing to the thin walls of the large intestine. We examined the ability of preoperative endoscopic ultrasonography (EUS) to predict lesion fibrosis in patients undergoing colorectal ESD. Patients and methods: From 2009 to 2013, 58 LSTs were evaluated retrospectively with EUS and treated using colorectal ESD. The degree of submucosal fibrosis was determined during ESD and classified as F0 (no fibrosis), F1 (mild fibrosis), or F2 (severe fibrosis). Results: The sensitivity and specificity of fibrosis prediction by preoperative EUS of all cases were 77.8 % and 57.1 %, respectively. However, there was a high accuracy (97.2 %, 35/36) for only the 36 LSTs with clear and visible images. In one case, EUS diagnosed no fibrosis but significant fibrosis was found during ESD, the result of colon cancer invasion into the submucosa. Conclusions: Preoperative EUS before colorectal ESD successfully predicted the degree of fibrosis in a number of cases. Diseases of the digestive system. Gastroenterology Shuji Kanmura verfasserin aut Fumisato Sasaki verfasserin aut Yuichirou Nasu verfasserin aut Keita Funakawa verfasserin aut Akihito Tanaka verfasserin aut Shiho Arima verfasserin aut Junichi Nakazawa verfasserin aut Hiroki Taguchi verfasserin aut Shinichi Hashimoto verfasserin aut Masatsugu Numata verfasserin aut Hirofumi Uto verfasserin aut Hirohito Tsubouchi verfasserin aut Akio Ido verfasserin aut In Endoscopy International Open Georg Thieme Verlag KG, 2014 03(2015), 04, Seite E363-E367 (DE-627)780383214 (DE-600)2761052-4 21969736 nnns volume:03 year:2015 number:04 pages:E363-E367 https://doi.org/10.1055/s-0034-1391782 kostenfrei https://doaj.org/article/2be1081391cd4815b2aeed6dd2a5b671 kostenfrei http://www.thieme-connect.de/DOI/DOI?10.1055/s-0034-1391782 kostenfrei https://doaj.org/toc/2364-3722 Journal toc kostenfrei https://doaj.org/toc/2196-9736 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_267 GBV_ILN_285 GBV_ILN_293 GBV_ILN_602 GBV_ILN_2014 GBV_ILN_2446 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 03 2015 04 E363-E367 |
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10.1055/s-0034-1391782 doi (DE-627)DOAJ052136329 (DE-599)DOAJ2be1081391cd4815b2aeed6dd2a5b671 DE-627 ger DE-627 rakwb eng RC799-869 Tomoaki Makino verfasserin aut Preoperative classification of submucosal fibrosis in colorectal laterally spreading tumors by endoscopic ultrasonography 2015 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Background and study aims: Although endoscopic submucosal dissection (ESD) is an established therapy for colon neoplasms including laterally spreading tumors (LSTs), its application to advanced fibrotic lesions is very difficult owing to the thin walls of the large intestine. We examined the ability of preoperative endoscopic ultrasonography (EUS) to predict lesion fibrosis in patients undergoing colorectal ESD. Patients and methods: From 2009 to 2013, 58 LSTs were evaluated retrospectively with EUS and treated using colorectal ESD. The degree of submucosal fibrosis was determined during ESD and classified as F0 (no fibrosis), F1 (mild fibrosis), or F2 (severe fibrosis). Results: The sensitivity and specificity of fibrosis prediction by preoperative EUS of all cases were 77.8 % and 57.1 %, respectively. However, there was a high accuracy (97.2 %, 35/36) for only the 36 LSTs with clear and visible images. In one case, EUS diagnosed no fibrosis but significant fibrosis was found during ESD, the result of colon cancer invasion into the submucosa. Conclusions: Preoperative EUS before colorectal ESD successfully predicted the degree of fibrosis in a number of cases. Diseases of the digestive system. Gastroenterology Shuji Kanmura verfasserin aut Fumisato Sasaki verfasserin aut Yuichirou Nasu verfasserin aut Keita Funakawa verfasserin aut Akihito Tanaka verfasserin aut Shiho Arima verfasserin aut Junichi Nakazawa verfasserin aut Hiroki Taguchi verfasserin aut Shinichi Hashimoto verfasserin aut Masatsugu Numata verfasserin aut Hirofumi Uto verfasserin aut Hirohito Tsubouchi verfasserin aut Akio Ido verfasserin aut In Endoscopy International Open Georg Thieme Verlag KG, 2014 03(2015), 04, Seite E363-E367 (DE-627)780383214 (DE-600)2761052-4 21969736 nnns volume:03 year:2015 number:04 pages:E363-E367 https://doi.org/10.1055/s-0034-1391782 kostenfrei https://doaj.org/article/2be1081391cd4815b2aeed6dd2a5b671 kostenfrei http://www.thieme-connect.de/DOI/DOI?10.1055/s-0034-1391782 kostenfrei https://doaj.org/toc/2364-3722 Journal toc kostenfrei https://doaj.org/toc/2196-9736 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_267 GBV_ILN_285 GBV_ILN_293 GBV_ILN_602 GBV_ILN_2014 GBV_ILN_2446 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 03 2015 04 E363-E367 |
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10.1055/s-0034-1391782 doi (DE-627)DOAJ052136329 (DE-599)DOAJ2be1081391cd4815b2aeed6dd2a5b671 DE-627 ger DE-627 rakwb eng RC799-869 Tomoaki Makino verfasserin aut Preoperative classification of submucosal fibrosis in colorectal laterally spreading tumors by endoscopic ultrasonography 2015 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Background and study aims: Although endoscopic submucosal dissection (ESD) is an established therapy for colon neoplasms including laterally spreading tumors (LSTs), its application to advanced fibrotic lesions is very difficult owing to the thin walls of the large intestine. We examined the ability of preoperative endoscopic ultrasonography (EUS) to predict lesion fibrosis in patients undergoing colorectal ESD. Patients and methods: From 2009 to 2013, 58 LSTs were evaluated retrospectively with EUS and treated using colorectal ESD. The degree of submucosal fibrosis was determined during ESD and classified as F0 (no fibrosis), F1 (mild fibrosis), or F2 (severe fibrosis). Results: The sensitivity and specificity of fibrosis prediction by preoperative EUS of all cases were 77.8 % and 57.1 %, respectively. However, there was a high accuracy (97.2 %, 35/36) for only the 36 LSTs with clear and visible images. In one case, EUS diagnosed no fibrosis but significant fibrosis was found during ESD, the result of colon cancer invasion into the submucosa. Conclusions: Preoperative EUS before colorectal ESD successfully predicted the degree of fibrosis in a number of cases. Diseases of the digestive system. Gastroenterology Shuji Kanmura verfasserin aut Fumisato Sasaki verfasserin aut Yuichirou Nasu verfasserin aut Keita Funakawa verfasserin aut Akihito Tanaka verfasserin aut Shiho Arima verfasserin aut Junichi Nakazawa verfasserin aut Hiroki Taguchi verfasserin aut Shinichi Hashimoto verfasserin aut Masatsugu Numata verfasserin aut Hirofumi Uto verfasserin aut Hirohito Tsubouchi verfasserin aut Akio Ido verfasserin aut In Endoscopy International Open Georg Thieme Verlag KG, 2014 03(2015), 04, Seite E363-E367 (DE-627)780383214 (DE-600)2761052-4 21969736 nnns volume:03 year:2015 number:04 pages:E363-E367 https://doi.org/10.1055/s-0034-1391782 kostenfrei https://doaj.org/article/2be1081391cd4815b2aeed6dd2a5b671 kostenfrei http://www.thieme-connect.de/DOI/DOI?10.1055/s-0034-1391782 kostenfrei https://doaj.org/toc/2364-3722 Journal toc kostenfrei https://doaj.org/toc/2196-9736 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_267 GBV_ILN_285 GBV_ILN_293 GBV_ILN_602 GBV_ILN_2014 GBV_ILN_2446 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 03 2015 04 E363-E367 |
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Tomoaki Makino @@aut@@ Shuji Kanmura @@aut@@ Fumisato Sasaki @@aut@@ Yuichirou Nasu @@aut@@ Keita Funakawa @@aut@@ Akihito Tanaka @@aut@@ Shiho Arima @@aut@@ Junichi Nakazawa @@aut@@ Hiroki Taguchi @@aut@@ Shinichi Hashimoto @@aut@@ Masatsugu Numata @@aut@@ Hirofumi Uto @@aut@@ Hirohito Tsubouchi @@aut@@ Akio Ido @@aut@@ |
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2015-01-01T00:00:00Z |
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Preoperative classification of submucosal fibrosis in colorectal laterally spreading tumors by endoscopic ultrasonography |
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Background and study aims: Although endoscopic submucosal dissection (ESD) is an established therapy for colon neoplasms including laterally spreading tumors (LSTs), its application to advanced fibrotic lesions is very difficult owing to the thin walls of the large intestine. We examined the ability of preoperative endoscopic ultrasonography (EUS) to predict lesion fibrosis in patients undergoing colorectal ESD. Patients and methods: From 2009 to 2013, 58 LSTs were evaluated retrospectively with EUS and treated using colorectal ESD. The degree of submucosal fibrosis was determined during ESD and classified as F0 (no fibrosis), F1 (mild fibrosis), or F2 (severe fibrosis). Results: The sensitivity and specificity of fibrosis prediction by preoperative EUS of all cases were 77.8 % and 57.1 %, respectively. However, there was a high accuracy (97.2 %, 35/36) for only the 36 LSTs with clear and visible images. In one case, EUS diagnosed no fibrosis but significant fibrosis was found during ESD, the result of colon cancer invasion into the submucosa. Conclusions: Preoperative EUS before colorectal ESD successfully predicted the degree of fibrosis in a number of cases. |
abstractGer |
Background and study aims: Although endoscopic submucosal dissection (ESD) is an established therapy for colon neoplasms including laterally spreading tumors (LSTs), its application to advanced fibrotic lesions is very difficult owing to the thin walls of the large intestine. We examined the ability of preoperative endoscopic ultrasonography (EUS) to predict lesion fibrosis in patients undergoing colorectal ESD. Patients and methods: From 2009 to 2013, 58 LSTs were evaluated retrospectively with EUS and treated using colorectal ESD. The degree of submucosal fibrosis was determined during ESD and classified as F0 (no fibrosis), F1 (mild fibrosis), or F2 (severe fibrosis). Results: The sensitivity and specificity of fibrosis prediction by preoperative EUS of all cases were 77.8 % and 57.1 %, respectively. However, there was a high accuracy (97.2 %, 35/36) for only the 36 LSTs with clear and visible images. In one case, EUS diagnosed no fibrosis but significant fibrosis was found during ESD, the result of colon cancer invasion into the submucosa. Conclusions: Preoperative EUS before colorectal ESD successfully predicted the degree of fibrosis in a number of cases. |
abstract_unstemmed |
Background and study aims: Although endoscopic submucosal dissection (ESD) is an established therapy for colon neoplasms including laterally spreading tumors (LSTs), its application to advanced fibrotic lesions is very difficult owing to the thin walls of the large intestine. We examined the ability of preoperative endoscopic ultrasonography (EUS) to predict lesion fibrosis in patients undergoing colorectal ESD. Patients and methods: From 2009 to 2013, 58 LSTs were evaluated retrospectively with EUS and treated using colorectal ESD. The degree of submucosal fibrosis was determined during ESD and classified as F0 (no fibrosis), F1 (mild fibrosis), or F2 (severe fibrosis). Results: The sensitivity and specificity of fibrosis prediction by preoperative EUS of all cases were 77.8 % and 57.1 %, respectively. However, there was a high accuracy (97.2 %, 35/36) for only the 36 LSTs with clear and visible images. In one case, EUS diagnosed no fibrosis but significant fibrosis was found during ESD, the result of colon cancer invasion into the submucosa. Conclusions: Preoperative EUS before colorectal ESD successfully predicted the degree of fibrosis in a number of cases. |
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We examined the ability of preoperative endoscopic ultrasonography (EUS) to predict lesion fibrosis in patients undergoing colorectal ESD. Patients and methods: From 2009 to 2013, 58 LSTs were evaluated retrospectively with EUS and treated using colorectal ESD. The degree of submucosal fibrosis was determined during ESD and classified as F0 (no fibrosis), F1 (mild fibrosis), or F2 (severe fibrosis). Results: The sensitivity and specificity of fibrosis prediction by preoperative EUS of all cases were 77.8 % and 57.1 %, respectively. However, there was a high accuracy (97.2 %, 35/36) for only the 36 LSTs with clear and visible images. In one case, EUS diagnosed no fibrosis but significant fibrosis was found during ESD, the result of colon cancer invasion into the submucosa. 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