A 55-year-old woman was found to have a depressed lesion on the posterior part of
the lower gastric body ([Fig. 1 a ]). The patient underwent endoscopic submucosal dissection (ESD) and en bloc resection
without intraoperative perforation. Prophylactic endoscopic coagulation using Coagrasper
(Olympus Medical, Tokyo, Japan) was performed for visible vessels, and endoclips were
applied prophylactically to close tiny injuries to the muscularis propria ([Fig. 1 b ]). As significant bile juice reflux was noticed during endoscopy, a 14-Fr soft nasogastric
tube was inserted. Smooth drainage of gastric fluid was observed.
Fig. 1 Endoscopic submucosal dissection (ESD) for a gastric lesion. a The depressed lesion on the greater curvature of the lower gastric body. b The patient underwent ESD and en bloc resection, without intraoperative perforation.
During the night following the procedure, the patient developed severe upper abdominal
pain and nausea, and both radiography and computed tomography revealed free air, with
a migrated nasogastric tube outside the stomach ([Fig. 2 a ]). Emergency esophagogastroduodenoscopy (EGD) after removal of the tube identified
a cylindrical perforation, which was probably caused by mechanical penetration of
the nasogastric tube ([Fig. 2 a, b ], [Video 1 ]).
Fig. 2 The nasogastric tube caused perforation following endoscopic submucosal dissection.
a Radiography and computed tomography revealed a migrated nasogastric tube outside
the stomach. b A cylindrical delayed perforation caused by mechanical penetration of the nasogastric
tube. c The over-the-scope clip (OTSC) device was directed towards the perforation, the clip
was released, and the wound was closed successfully. d Follow-up esophagogastroduodenoscopy 4 days after OTSC application demonstrated sustained
closure of the perforation.
Video 1: Endoscopic submucosal dissection of a gastric lesion, and closure of a subsequent
perforation. A Twin grasper (Ovesco, Tübingen, Germany) was used to grasp and appose
the two mucosal edges. Then, suction was applied to pull the mucosal edges into the
cap. The over-the-scope clip device was directed towards the perforation, the clip
was released, and the wound was closed successfully. The perforation was probably
caused by the nasogastric tube that was placed after gastric endoscopic submucosal
dissection.
After interdisciplinary discussion with surgeons it was decided to close the perforation
endoscopically. The whole wall defect was closed using an over-the-scope clip (OTSC,
12/6t; Ovesco, Tübingen, Germany). A Twin grasper (Ovesco) was necessary to grasp
and appose the two edges of the perforation site. After careful retraction of the
edges into the cap, the OTSC device was directed towards the perforation, the clip
was released, and the wound was closed successfully ([Fig. 2 c ]). Follow-up EGD demonstrated sustained closure of the perforation, and gastric series
confirmed no leakage of contrast ([Fig. 2 d ], [Video 1 ]). The patient was discharged home 12 days after ESD.
The resected specimen revealed a completely resected, depressed mucosal adenocarcinoma,
18 mm in size with moderate to poor differentiation, but without lymphovascular invasion
or ulceration.
Some experts recommend nasogastric tube intubation for diversion of gastrointestinal
fluids such as bile, which may induce delayed perforation after gastric ESD [1 ]
[2 ]. This case highlights the utility of large size OTSCs with Twin grasper to close
a rare but complex delayed perforation, which was probably caused by a post-ESD nasogastric
tube. Although endoclips can be used, this perforation was complex and large, and
thus it would have been impossible or technically much more challenging to close the
hole. The opposition forces of OTSCs are much stronger and may result in a more secure
closure, thus avoiding emergency surgery [3 ]
[4 ].
Endoscopy_UCTN_Code_CPL_1AH_2AZ
