Clinical outcomes of cap-assisted endoscopic resection for small rectal subepithelial tumors.
Gastroenterol Hepatol
; 44(6): 418-423, 2021.
Article
in En, Es
| MEDLINE
| ID: mdl-33303284
ABSTRACT
OBJECTIVE:
To assess the effectiveness and safety of cap-assisted endoscopic resection and the usefulness of endoscopic ultrasonography (EUS) for managing small rectal subepithelial tumors (SETs). PATIENTS ANDMETHODS:
Patients with small rectal SETs≤10mm in diameter were enrolled in this study at our hospital from October 2014 to December 2017. First, EUS was performed to evaluate the lesions. Then, cap-assisted endoscopic resection was performed by suctioning the SET into a transparent cap, ligating with a metal snare and then resecting the tumor. The wound was closed using endoclips if necessary.RESULTS:
Forty patients were enrolled in the study. EUS showed lesions originating from muscularis mucosa or submucosa with an average diameter of 5.4×3.1mm. The en bloc resection rate was 85.0% obtained by cap-assisted endoscopic resection, with a mean total procedure time of 17.6min. No immediate perforation happened. Immediate bleeding occurred in five patients; all cases were managed successfully by endoscopy. No delayed bleeding was observed. Pathology examination showed that 70.0% of the lesions were neuroendocrine tumors (G1). One case of recurrence was seen in follow-up; it was managed successfully by endoscopic submucosal dissection. There was no tumor recurrence in a median follow-up period of 41 months in the remaining 39 patients.CONCLUSIONS:
Most small rectal SETs arising from the muscularis mucosa or submucosa are neuroendocrine tumors and require proper treatment. Cap-assisted endoscopic resection is simple, effective and safe for resecting such lesions, and EUS is useful for case screening.Key words
Full text:
1
Database:
MEDLINE
Main subject:
Rectal Neoplasms
/
Proctoscopy
Limits:
Adult
/
Female
/
Humans
/
Male
/
Middle aged
Language:
En
/
Es
Year:
2021
Type:
Article