Intraoperative video panendoscopy for diagnosing sites of chronic intestinal bleeding

doi:10.1016/0002-9610(89)90434-0

The American Journal of Surgery

Volume 157, Issue 1, January 1989, Pages 137-144

https://doi.org/10.1016/0002-9610(89)90434-0 Get rights and content

Abstract

Intraoperative video panendoscopy was performed in 14 patients with chronic, recurrent gastrointestinal bleeding. All of the study patients had undergone extensive and expensive diagnostic testing including multiple radiographic contrast studies of the gastrointestinal tract, upper and lower endoscopy, nuclear bleeding scans, and selective mesenteric angiography without definition of the bleeding source. Intraoperative video panendoscopy, employing a segmental advance and look technique, allowed visualization and transillumination of the entire gut and identified mucosal disease in 13 patients (93 percent). Angiodysplasia of the colon and small intestine was the most common pathologic finding. Intraoperative video panendoscopy significantly influenced the operation performed in 13 patients (93 percent). Postoperative complications were minimal, with none being directly attributable to intraoperative video panendoscopy. Bleeding was totally controlled in 10 patients (71 percent) during a mean follow-up period of 25 months. Intraoperative video panendoscopy is a valuable technique for assisting in the management of the patient with recurrent gastrointestinal bleeding.

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Obscure gastrointestinal bleeding has long been a diagnostic challenge because of the relative inaccessibility of small bowel to standard endoscopic evaluation. Intraoperative enteroscopy indications have been reduced by the development of deep enteroscopy techniques and video capsule endoscopy. In light of the current advances, this review aimed at evaluating the intraoperative enteroscopy technical aspects, study results and an ongoing role for intraoperative enteroscopy in obscure gastrointestinal bleeding management. Intraoperative enteroscopy allows complete small bowel exploration in 57–100% of cases. A bleeding source can be identified in 80% of cases. Main causes are vascular lesions (61%) and benign ulcers (19%). When a lesion is found, intraoperative enteroscopy allows successful and recurrence-free management of gastrointestinal bleeding in 76% of cases. The reported mortality is 5% and morbidity is 17%. The recurrence of bleeding is observed in 13–52% of cases. With the recent development of deep enteroscopy techniques, intraoperative enteroscopy remains indicated when small bowel lesions (i) have been identified by a preoperative work-up, (ii) cannot be definitively managed by angiographic embolization, endoscopic treatment or when surgery is required and (iii) cannot be localized by external examination during surgical explorations. Surgeons and endoscopists must exercise caution with intraoperative enteroscopy to avoid the use of a low yield, highly morbid procedure.
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Of patients who are seen with GI hemorrhage, approximately 5% will have a small-bowel source. Management of these patients entails considerable expense. We performed a decision analysis to explore the optimal management strategy for obscure GI hemorrhage.
We used a cost-effectiveness analysis to compare no therapy (reference arm) to 5 competing modalities for a 50-year-old patient with obscure overt bleeding: (1) push enteroscopy, (2) intraoperative enteroscopy, (3) angiography, (4) initial anterograde double-balloon enteroscopy (DBE) followed by retrograde DBE if the patient had ongoing bleeding, and (5) small-bowel capsule endoscopy (CE) followed by DBE guided by the CE findings. The model included prevalence rates for small-bowel lesions, sensitivity for each intervention, and the probability of spontaneous bleeding cessation. We examined total costs and quality-adjusted life years (QALY) over a 1-year time period.
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The short time horizon of the model, because of the lack of long-term data about the natural history of rebleeding from small-intestinal lesions.
An initial DBE is a cost-effective approach for patients with obscure bleeding. However, capsule-directed DBE may be associated with better long-term outcomes because of the potential for fewer complications and decreased utilization of endoscopic resources.

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^☆: Presented at the 29th Annual Meeting of the Society for Surgery of the Alimentary Tract, New Orleans, Louisiana, May 17–18, 1988.

¹: From the Departments of Surgery and Medicine, East Carolina University School of Medicine, Greenville, North Carolina.

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Scientific paperIntraoperative video panendoscopy for diagnosing sites of chronic intestinal bleeding☆

Abstract

Gastrointest Endosc

Intraoperative gastrointestinal endoscopy in the management of occult gastrointestinal bleeding

South Med J

Occult gastrointestinal bleeding: locating the cause

Am Surg

Scientific paper
Intraoperative video panendoscopy for diagnosing sites of chronic intestinal bleeding☆