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Unexplained abdominal pain in morbidly obese patients after bariatric surgery
Annouk S Pierik1, Usha K Coblijn2, Christel A L de Raaff1
1Department of Surgery, Onze Lieve Vrouwe Gasthuis, locatie West (Previously Sint Lucas Andreas Ziekenhuis, Amsterdam, the Netherlands), Amersterdam, the Netherlands.
Background:
There is an overall complication rate of 6.3%-10% after bariatric surgery. After ruling out anatomic/physical causes, there is a substantial group of patients who develop unexplained postsurgical abdominal pain.
Objectives:
To inventory the prevalence of unexplained abdominal pain after laparoscopic Roux-en-Y gastric bypass or laparoscopic sleeve gastrectomy and to determine predictive factors for unexplained abdominal pain.
Setting:
Obesity Center Amsterdam, Amsterdam, the Netherlands.
Methods:
A retrospective study in a prospective database was performed. Baseline characteristics and postoperative course were evaluated.
Results:
A total of 1788 patients underwent laparoscopic Roux-en-Y gastric bypass or laparoscopic sleeve gastrectomy between November 2007 and April 2015. The average follow-up consisted of 33.5 months, without loss to follow-up. Abdominal pain was presented in 387 patients (21.6%). The study population consisted of 337 women (87.1%) and 50 men (12.9%); the mean age was 43.3 years (standard deviation 10.1) and the median preoperative body mass index was 43.7 kg/m². An explanation for abdominal pain was found in 246 of 387 patients (63.6%), whereas no explanation was found in 133 patients (34.4%). Revisional surgery was a significant predictor for unexplained pain (odds ratio 1.7; confidence interval 1.0-2.8; P = 0.037).
Conclusion:
A total of 133 patients (7.4%) experienced unexplained abdominal pain after laparoscopic bariatric surgery. Revisional surgery was found to be a significant predictive factor for this outcome. Present study results suggest that postoperative unexplained abdominal pain is a significant morbidity and should be part of the informed consent. More research is needed regarding further diagnosis and management and treatment.
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