Retrospective analysis of abdominal pain in postoperative laparoscopic Roux-en-Y gastric bypass patients: is a simple algorithm the answer?

BACKGROUND

Patients who have undergone laparoscopic gastric bypass have a high risk of developing an internal hernia. Most patients present 9-18 months postoperatively with a weight loss of 75-120 lb and pain out of proportion to the physical findings. Given the risks of internal hernias and the difficulty in radiologic diagnosis, we have developed a single algorithm to avoid the triage complication of a "missed" diagnosis.

METHODS

A retrospective review was performed of 1500 bariatric procedures performed from 2001 to 2006, 33% (laparoscopic Roux-en-Y gastric bypass) of which were performed using an antecolic antegastric Roux limb, with all potential defects, including Peterson's, closed. Of these 1500 patients, 75 were evaluated for abdominal pain to rule out an internal hernia.

RESULTS

Of the 75 patients, 40 had signs of an internal hernia or abdominal obstruction on computed tomography and underwent laparoscopy. The operative time was 38-45 minutes, and the length of stay was 1.5 days. The remaining 35 patient's computed tomography scans were interpreted as "no evidence" of internal hernia or obstruction. Of the 35 patients, 29 underwent diagnostic laparoscopy and had either an internal hernia or critical adhesions. Thus, 69 patients (92%) underwent diagnostic laparoscopy. In 6 patients, the symptoms resolved completely without any surgical intervention.

CONCLUSION

At our institution, patients who undergo laparoscopic Roux-en-Y gastric bypass with a weight loss of 75-120 lb undergo computed tomography with contrast to rule out other potential nonoperative causes. Also, unless clinically stable or the patient has complete resolution of their pain, they then undergo laparoscopy for evaluation.

Fate of Retained Capsule: A Pathognomonic for Surgery

Since its introduction in 2001, Wireless Video Capsule enteroscopy is gaining acceptance due to its high diagnostic potential and minimal risk. In some centers, it offers an alternative approach to visualize the small intestine and to evaluate patients with suspected small bowel disease. We present a series of known complications of this procedure and call for a more proactive role in the management of retained capsule.

Fate of retained capsule: a pathognomonic for surgery

Since its introduction in 2001, Wireless Video Capsule enteroscopy is gaining acceptance due to its high diagnostic potential and minimal risk. In some centers, it offers an alternative approach to visualize the small intestine and to evaluate patients with suspected small bowel disease. We present a series of known complications of this procedure and call for a more proactive role in the management of retained capsule.

Hyperkinetic Biliary Dyskinesia: An Underrecognized Problem With Good Surgical Outcomes After Cholecystectomy

Introduction While surgical indications for symptomatic cholelithiasis and biliary hypokinesia are clear, hyperkinetic biliary dyskinesia (HBD) is an underrecognized condition with poorly defined symptomology and management guidelines. HBD is typically defined as a gallbladder ejection fraction (EF) ≥ 80% on a hepatobiliary iminodiacetic acid (HIDA) scan. We aimed to identify the prevalence and radiographic reporting of HBD, physician referral patterns, and clinical outcomes following cholecystectomy. Methods  A retrospective cohort study of patients with HIDA scans completed over 21 years at our tertiary care hospital was performed. Demographics, symptomatology, referral patterns, and operative data were collected. HBD was defined as HIDA EF ≥80%. Patients with HBD who underwent cholecystectomy were analyzed. ANOVA and chi-square tests were used to compare variables among patients with or without symptom improvement using Statistical Product and Service Solutions (SPSS; IBM SPSS Statistics for Windows, Armonk, NY). Results Of 1,997 patients (73% female, mean age 51.7 years) who had HIDA scans with reported EF, 730 (36.6%) had an EF≥80%. Only 13.7% of HIDA scans with EF≥80% were reported as hyperkinetic, and the rest are "normal". Cholecystectomy was performed in 57 (7.8%) patients with EF≥80%, most being elective (89.5%) and all minimally invasive. Primary care physicians (PCPs) referred most elective cases to surgery (61.4%). The median time from HIDA to cholecystectomy was 146 days. Chronic cholecystitis was common in pathology (82.5%), while 38.6% had cholelithiasis. Overall, 53 patients (93.0%) reported symptom improvement at a median follow-up of 17.0 days. Patients without improvement had a higher prevalence of chronic gastrointestinal conditions (p<0.05), but not significantly more cholelithiasis, cholecystitis, time to surgery, or elective surgery status. Conclusions HBD is common but often underdiagnosed and thus likely underrecognized by treating physicians. Most HBD patients benefit from cholecystectomy, regardless of cholelithiasis. Patients with persistent symptoms after cholecystectomy may have confounding gastrointestinal diagnoses. Increased awareness among radiologists, referring PCPs, gastroenterologists, and surgeons about HBD and postoperative outcomes is needed to ensure that HBD is adequately treated.