The M2A video capsule (Given Imaging Ltd., Yoqneam, Israel) is slightly larger than
large antibiotic tablets. Some patients have difficulties in swallowing the capsule,
not only due to its size but also because of emotional aspects. We report here the
case of a 74-year-old man with gastrointestinal bleeding in the context of acquired
idiopathic von Willebrand disease. The source could not be located with upper and
lower gastrointestinal endoscopy. As he had a long-standing aversion to any form of
oral medication, the patient was unable to swallow the M2A capsule.
It was therefore decided to insert the capsule endoscopically. Initial ex vivo attempts
to grip the capsule showed that neither a polypectomy snare, nor Dormia baskets of
different sizes, nor polyp retrievers were able to fix the capsule securely. An overtube
(Olympus, Hamburg, Germany) was therefore inserted over a video gastroscope, with
the patient under conscious sedation. The capsule was then introduced into the overtube
and pushed into the stomach endoscopically. Capsule endoscopy was completed successfully
and revealed actively bleeding angiodysplasias in the proximal jejunum, which were
subsequently controlled with argon plasma coagulation using a push enteroscope.
Video capsule endoscopy is a valuable technique in the work-up of small-bowel bleeding
[1]. However, some patients are unable to swallow the capsule. It has been reported
previously that the capsule can be grasped with a polypectomy snare and transferred
endoscopically into the stomach or duodenum [2]
[3]
[4]. However, this approach seems unsafe for passage of the upper esophageal sphincter,
as the capsule can easily slip out of the snare, especially in the vertical position
needed to pass the sphincter. Slippage might in fact lead to aspiration; a case of
capsule aspiration in another setting was recently reported [5]. By contrast, pushing the capsule through an overtube is a safe method that allows
full visual control of correct capsule placement.
Figure 1 View of the passage of the M2A capsule through the overtube. Note the reddish appearance
in the proximal areas, where the overtube is clinging to the lower pharyngeal wall.
Endoscopy_UCTN_Code_TTT_1AP_2AB
