Treatment with rigid endoscopes with carbon dioxide laser or endoscopic stapling techniques seems to cause fewer adverse events compared with open surgical approaches, but these are still more serious than those reported for flexible endotherapy.16 and 17 Aly et al,2 in the same review, showed an adverse event rate of 3.0%. Chang et al,18 by using esophagodiverticulostomy, described a 2% rate of major adverse events (perforation, vocal cord paralysis, aspiration pneumonia) and a 12.7%
overall adverse event rate in a series of 150 patients. In other endoscopic studies, the rate of adverse events dropped from 32.1% by using the Selleckchem Ibrutinib cap technique9 to none when using the same technique as described here. In a study involving 125 patients, Mulder7 observed subcutaneous or mediastinal emphysema in 17.6% and minor bleeding in click here 1.6%. In the present series, no clinically significant bleeding was observed, although some bleeding occurred during the section but was always controlled by coagulation and/or clipping. In this line, the use of the diverticuloscope offers a clear advantage in terms of ease of treatment, showing the cutting area clearly, without the risk of aspiration because of airway protection, and allowing washing of the bleeding site if necessary. The 3 suspected perforations observed (fever, high C-reactive protein levels) had remarkably favorable courses, contrasting with a severe adverse
event we reported in our initial experience,6 before we decided to systematically close the bottom of the ID-8 section with clips at the end of the procedure, suggesting that even if incomplete, this closure may be useful. In addition, these clips migrate after 4 to 6 weeks (we never observed regurgitation or inhalation of it) and further increase, after migration, by ischemia, the length of the section. One patient had aspiration pneumonia occurring after extubation. As far as cutting the septum is concerned, 3 techniques
were described: needle-knife incision in endocut mode (present study), APC, and monopolar coagulation by using forceps.19 The best technique is unknown because randomized trials are lacking. Only Costamagna et al9 compared two techniques. They reported a high remission rate with a low rate of adverse events with the diverticuloscope technique compared with the cap technique. When using APC, the risk of bleeding is low, but this is at the cost of multiple procedures.7 After a successful procedure, the recurrence rate is also a matter of concern and often not described in the long term. We currently have a significant rate of recurrence, but most of the patients were successfully retreated over a single second session, a feature that is encouraging especially when treating elderly patients in whom multiple procedures with anaesthesia should be avoided. Endoscopic treatment proved to be applicable also in patients with previous surgical failure or clinical relapse.
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