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Letters to the Editor Pneumatic perforation of the ileum To the Editor: We were delighted to find the article by Felig et al. 1 on the subject of unexplained right colon mucosal bleeding at colonoscopy in the October 1996 issue of Gastrointestinal Endoscopy. We have h a d similar experiences in a small community hospital. Most o f o u r cases, as noted by Felig et al., were difficult colonoscopies with r e d u n d a n c y of the sigmoid colon and associated multiple wide-mouthed diverticula. Perforation of the cecum occurred in two cases. In all of these cases there were hemorrhagic a r e a s in the right colon with normal intervening mucosa. The resected segments did not show a n y signfficant pathology. We believed t h a t the perforations were secondary to excessive air insufflation. To prevent this complication, we minimize air insufflation and abandon the procedure when difficulty is encountered. Rao R. Meka, MD Southem Medical Clinic Valley, A/abama
REFERENCE 1. Felig DM, Brand MH, Vendor R. Unexpected right colon mucosal bleeding on colonoscopy. Gastrointest Endosc 1996; 44:471-3.
Diagnostic laparoscopy: is it "safe" in the hands of our surgical colleagues? To the Editor: We r e a d with interest the recent articles by Poniachik et a l J and Schrenk et al. 2 In the first article the authors studied the role of laparoscopy in the diagnosis of cirrhosis. In their study, a total of 434 diagnostic laparoscopies were performed by trainee hepatologists without any complications. In the second article Schrenk et al. 2 studied the mechanism, m a n a g e m e n t , a n d prevention of laparoscopic bowel injuries. This study was conducted by a surgical group and involved a total of 4672 laparoscopic procedures. One h u n d r e d fifty-eight diagnostic laparoscopies were performed in which t h e r e were t h r e e bowel injuries requiring laparotomies, a r a t e of 1.9%. This is in contrast to the absence of any complications in 434 similar procedures performed by hepatologists in the s t u d y by Poniachek et al. 1 Diagnostic laparoscopy u n d e r local a n e s t h e s i a is reasonably safe. 35 Arnong its complications, gastrointestinal perforation is distinctly rare. It can occur during either induction of pneumoperitoneum or insertion of the laparoscopic trocar. I n a review by H e n n i n g and Look, 6 a survey of 46,364 VOLUME 45, NO. 5, 1997