Superiority of mucosal incision-assisted biopsy over ultrasound-guided fine needle aspiration biopsy to diagnose small gastric subepithelial lesions:A propencity score matching analysis
Background Gastric subepithelial lesions, including gastrointestinal stromal tumors, are often found during routine gastroscopy. While endoscopic ultrasound-guided fine-needle aspiration biopsy (EUS-FNAB) has been the gold standard for diagnosing gastric subepithelial lesions, alternative open biopsy procedures, such as mucosal incision-assisted biopsy (MIAB) has been reported useful. The aim of this study is to evaluate the efficacy of MIAB for the diagnosis of gastric SELs compared with EUS-FNAB.
Methods We retrospectively analyzed medical records of 177 consecutive patients with gastric SELs who underwent either MIAB or EUS-FNAB at five hospitals in Japan between January 2010 and January 2018. Diagnostic yield, procedural time, and adverse event rates for the two procedures were evaluated before and after propensity-score matching.
Results No major procedure-related adverse events were observed in either group. Both procedures yielded highly-accurate diagnoses once large enough samples were obtained; however, such successful sampling was more often accomplished by MIAB than by EUS-FNAB, especially for small SELs. As a result, MIAB provided better diagnostic yields for SELs smaller than 20-mm diameter. The diagnostic yields of both procedures were comparable for SELs larger than 20-mm diameter; however, MIAB required significantly longer procedural time (approximately 13 minutes) compared with EUS-FNAB.
Conclusions Although MIAB required longer procedural time, it outperformed EUS-FNAB when diagnosing gastric SELs smaller than 20-mm diameter.
Figure 1
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Posted 10 Jan, 2020
On 21 Jan, 2020
On 08 Jan, 2020
On 08 Jan, 2020
On 06 Jan, 2020
Received 19 Dec, 2019
Invitations sent on 19 Dec, 2019
On 19 Dec, 2019
On 19 Dec, 2019
Received 19 Dec, 2019
On 17 Dec, 2019
On 16 Dec, 2019
On 16 Dec, 2019
On 17 Sep, 2019
Received 08 Sep, 2019
On 05 Sep, 2019
Received 21 Aug, 2019
On 10 Aug, 2019
On 09 Aug, 2019
Invitations sent on 09 Aug, 2019
On 06 Aug, 2019
On 06 Aug, 2019
On 22 Jul, 2019
Superiority of mucosal incision-assisted biopsy over ultrasound-guided fine needle aspiration biopsy to diagnose small gastric subepithelial lesions:A propencity score matching analysis
Posted 10 Jan, 2020
On 21 Jan, 2020
On 08 Jan, 2020
On 08 Jan, 2020
On 06 Jan, 2020
Received 19 Dec, 2019
Invitations sent on 19 Dec, 2019
On 19 Dec, 2019
On 19 Dec, 2019
Received 19 Dec, 2019
On 17 Dec, 2019
On 16 Dec, 2019
On 16 Dec, 2019
On 17 Sep, 2019
Received 08 Sep, 2019
On 05 Sep, 2019
Received 21 Aug, 2019
On 10 Aug, 2019
On 09 Aug, 2019
Invitations sent on 09 Aug, 2019
On 06 Aug, 2019
On 06 Aug, 2019
On 22 Jul, 2019
Background Gastric subepithelial lesions, including gastrointestinal stromal tumors, are often found during routine gastroscopy. While endoscopic ultrasound-guided fine-needle aspiration biopsy (EUS-FNAB) has been the gold standard for diagnosing gastric subepithelial lesions, alternative open biopsy procedures, such as mucosal incision-assisted biopsy (MIAB) has been reported useful. The aim of this study is to evaluate the efficacy of MIAB for the diagnosis of gastric SELs compared with EUS-FNAB.
Methods We retrospectively analyzed medical records of 177 consecutive patients with gastric SELs who underwent either MIAB or EUS-FNAB at five hospitals in Japan between January 2010 and January 2018. Diagnostic yield, procedural time, and adverse event rates for the two procedures were evaluated before and after propensity-score matching.
Results No major procedure-related adverse events were observed in either group. Both procedures yielded highly-accurate diagnoses once large enough samples were obtained; however, such successful sampling was more often accomplished by MIAB than by EUS-FNAB, especially for small SELs. As a result, MIAB provided better diagnostic yields for SELs smaller than 20-mm diameter. The diagnostic yields of both procedures were comparable for SELs larger than 20-mm diameter; however, MIAB required significantly longer procedural time (approximately 13 minutes) compared with EUS-FNAB.
Conclusions Although MIAB required longer procedural time, it outperformed EUS-FNAB when diagnosing gastric SELs smaller than 20-mm diameter.
Figure 1
Figure 2
Due to technical limitations the tables are available as a download in the Supplementary Files.