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Management of a Complicated Internal Herniation After Roux-en-Y Gastric Bypass in a 28-Week Pregnant Woman.

Abstract：

BACKGROUND:Small bowel obstruction (SBO) due to internal hernia (IH) is a well-known late complication after laparoscopic Roux-en-Y gastric bypass (LRYGB), with an incidence between 0.5 and 10% as reported by Iannelli et al. (Obes Surg. 17(10):1283-6, 2007). It is reported most frequently 1-2 years after surgery because of the greater weight loss at that time, with rapid loss of the mesenteric fat consequently as discussed by Stenberg et al. (Lancet. 387(10026):1397-404, 2016). Currently, women constitute more than 50% of the patients undergoing bariatric surgery and most of them are of childbearing age as reported by the World Health Organization (2015). SBO, due to IH, is a rare complication during pregnancy, mostly occurring during the third trimester as discussed by Torres-Villalobos et al. (Obes Surg 19(7):944-50, 2009), and can result in fetal and maternal morbidity and even mortality as reported by Vannevel et al. (Obstet Gynecol. 127(6):1013-20, 2016). Moreover, the physiologic changes of pregnancy can mask the symptoms of SBO after LRYGB, leading to significant diagnostic and therapeutic delays as detailed by Wax et al. (Am J Obstet Gynecol 208(4):265-71, 2013). Therefore, an early surgical exploration is necessary in this particular and uncommon situation as discussed by Webster et al. (Ann R Coll Surg Engl 97(5):339-44, 2015). METHODS:A 32-year-old female patient, with Ehlers-Danlos syndrome and chronic pain, was in the 28th week of her first pregnancy after bariatric surgery. She had had an antecolic LRYGB 6 years ago in another institution, resulting in a 35-kg weight loss. She presented to the emergency department with severe and persistent epigastric pain associated with nausea and vomiting during 24 h. On physical examination, her abdomen was painful and tender at the epigastrium and left hypochondrium, and her vital signs were normal. The blood tests were in the normal range except the white blood cell count at 12'000 G/l. The obstetric and neonatal team was involved, and fetal heart monitoring was normal. Abdominal ultrasonography ruled out other causes of pain. An abdominal MRI was performed and displayed a distended proximal small bowel, free abdominal fluid, and bowel mesenteric edema in the left upper quadrant with compression of the superior mesenteric vein. Internal hernia with intestinal suffering was suspected, and the patient consented for emergency laparoscopy. RESULTS:The laparoscopic exploration, reduction of the internal hernia, and closure of the mesenteric defects are demonstrated step-by-step in the presented intraoperative video. The postoperative course was uncomplicated for both patient and fetus. Oral feeding was resumed at day 1, with no residual symptom, and the patient was discharged on postoperative day 3. At 1-month follow-up, she had no complaint and her pregnancy had resumed a normal course. She delivered a healthy baby at 36 weeks without any complication. CONCLUSIONS:Internal herniation after LRYGB represents a rare, high-risk complication during pregnancy. A low threshold for imaging, preferably by abdominal MRI, is recommended. Multidisciplinary management, including obstetricians and bariatric surgeons, is necessary in order to avoid maternal and fetal adverse outcomes. During surgery, recognition of the anatomy is often difficult, and parts of the bowel are distended and fragile. Starting to run the bowel backwards from the ileocecal valve is a crucial surgical step for reducing internal hernias during LRYGB, and reduces both the risk to worsen the situation and of bowel injury, making its management less hazardous.

journal_name

Obes Surg

journal_title

Obesity surgery

authors

Thomopoulos T,Mantziari S,St-Amour P,Uldry E,Suter M

doi

10.1007/s11695-020-04997-0

subject

Has Abstract

pub_date

2020-12-01 00:00:00

pages

5177-5178

issue

eissn

0960-8923

issn

1708-0428

pii

10.1007/s11695-020-04997-0

journal_volume

pub_type

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Management of a Complicated Internal Herniation After Roux-en-Y Gastric Bypass in a 28-Week Pregnant Woman.