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Over the next several years, the number of patients who will have had bariatric surgery for morbid obesity will reach close to a million. Several well-described nutritional problems such as B12 and iron deficiency will be noted in these patients. Many of these patients will be lost to the original surgeon and will now be in the care of the "other physicians." These and other mineral and vitamin problems will need to be screened and treated. If these problems are left undiagnosed, severe and irreparable problems can result. Early problems, such as vomiting and dumping syndrome, will be easily recognized and treated, but other long-term problems, such as changes in bone metabolism, will need to be monitored. Again, if some of these long-term problems are not addressed in a timely fashion, then eventual treatment becomes much more difficult. This commentary will cover the common as well newer problems that are now developing in the patient who has had bariatric surgery. Patients who have undergone bariatric surgery require medical follow-up for reasons that are often determined by the type of surgical procedure performed. The majority of this review will deal with patients who have had the standard Roux-en-Y gastric bypass, which is a primarily restrictive procedure with a mild component of noncaloric malabsorption. At the end of this report, a short section will be devoted to the problems associated with the malabsorptive procedures.
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PMID:Follow-up of nutritional and metabolic problems after bariatric surgery. 1567 21

Small bowel obstruction is an unusual complication of pregnancy. Its occurrence after Roux-en-Y gastric bypass (RYGB) for morbid obesity complicated by pregnancy is rare. Morbid obesity describes body weight at least 100 lb over the ideal weight, or a body mass index (BMI) > or = 40. Surgery offers the only viable treatment option with long-term weight loss and maintenance. This case report involves a 23-year-old female at 25 weeks gestation with a 1-day history of diffuse abdominal pain and vomiting. She had a RYGB with a 15 cc micropouch 6 months prior to the commencement of this pregnancy. All radiologic investigations were normal. Esophagogastroscopy was performed revealing an ischemic Roux limb of the gastric bypass. At laparotomy, an internal hernia involving the afferent limb was identified at the site of the Roux anastomosis compromising portions of both the afferent and Roux limbs. Nonviable portions of both the afferent and Roux limbs were resected. Gastrointestinal continuity was achieved by fashioning a gastro-gastrostomy and a jejuno-jejunostomy, thus reversing the original gastric bypass procedure. The immediate postoperative period was complicated by fetal demise. With the increase in bariatric surgery, small bowel ischemia after Roux-en-Y gastric bypass will most likely become more prevalent, particularly in women of childbearing age.
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PMID:Small bowel ischemia after Roux-en-Y gastric bypass complicated by pregnancy: a case report. 1586 39

The neurologic form of beriberi has been described in multiple case reports following bariatric surgery for morbid obesity. Thiamine deficiency occurs due to marked emesis and/or altered absorption secondary to the reconfiguration of the gastrointestinal tract to achieve the malabsorption needed to achieve weight loss. This case report illustrates the typical presentation of a patient after gastric bypass, and highlights the symptoms that bariatric surgeons must detect and reviews the treatment.
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PMID:Peripheral polyneuropathy from thiamine deficiency following laparoscopic Roux-en-Y gastric bypass. 1597 66

In the last few years bariatric surgery has become an excellent therapeutic alternative for the treatment of morbid obesity. Food bezoar as a cause for obstruction seems to be a very infrequent postoperative complication. It has only been published as anecdotal case reports. We describe a female patient with morbid obesity (weight, 131 kg; body mass index, 45) who underwent laparoscopic bariatric surgery (subtotal 95% gastrectomy with gastroyeyunoanastomosis in Roux-Y) obtaining a significant weight reduction (51 kg) in the next few months post surgery. She developed a food bezoar in the gastric remnant as a late complication of surgery (13 months after bariatric surgery) and presented as a gastric outlet acute obstruction with persistent vomiting and satiety. The diagnosis and treatment was performed through an upper GI endoscopy. It is important to consider this complication in patients with persisting vomiting after this kind of surgery. In the near future we will probably have a significant amount of patients operated due to morbid obesity and we may see this kind of complication more frequently.
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PMID:[Gastric food bezoar as a complication of bariatric surgery. Case report and review of the literature]. 1644 9

Severe or morbid obesity, with body mass indexes exceeding 35 to 40, are often refractory to all therapies other than surgery. The increasing number of patients undergoing bariatric surgery will result in increasing numbers of patients with gastrointestinal complications. The types of complications vary with type of surgery, whether restrictive, malabsorptive, or both, depending on what anatomical and physiologic changes occur postoperatively. One complication of bariatric surgery (gallstones) is due to weight loss after surgery, not the surgery itself. Based on previous meta-analyses, most of the top 10 complications from bariatric surgery are gastrointestinal: dumping, vitamin/mineral deficiencies, vomiting (and nausea), staple line failure, infection, stenosis (and bowel obstruction), ulceration, bleeding, splenic injury, and perioperative death. Two other gastrointestinal complications of bariatric surgery are indirect consequences of the surgery: bacterial overgrowth and diarrhea. Awareness of the types and frequency of gastrointestinal complications of bariatric surgery allows for timely diagnosis and appropriate therapy. As new surgical, and even endoscopic, procedures to treat obesity are developed, new gastrointestinal complications will need to be recognized.
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PMID:Gastrointestinal complications of bariatric surgery: diagnosis and therapy. 1661 37

Postoperative complications resulting from bariatric surgery can lead to severe vitamin-deficiency states, such as Wernicke's encephalopathy (WE). We present a 29-year-old woman with BMI 41.7 with no history of alcoholism who developed acute WE after a gastric bypass for morbid obesity. After persistent vomiting for 2 weeks postoperatively, symptoms began with headache, vertigo, diplopia, nystagmus, tingling and weakness in both upper and lower extremities, urinary incontinence, and memory loss to recent events. All investigations, including upper GI endoscopy, Gastrografin meal and even MRI, were normal. A dramatic improvement occurred in 24 hrs after starting 100 mg thiamine infusion daily. We recommend that patients undergoing bariatric surgery should be started on thiamine supplementation once oral intake begins, because this case showed that postoperative acute WE can develop before 6 weeks, unlike other reports.
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PMID:Very early onset of Wernicke's encephalopathy after gastric bypass. 1668 41

Obesity has become a severe health problem in the Western world, and is rapidly becoming the most common disease of the 21st century. Morbid obesity is resistant to treatment and is accompanied by considerable morbidity. Some morbidly obese patients do not manage to reduce their weight by diet alone, yet are unsuitable or unwilling to undergo bariatric surgery. Lately, a new intragastric bioenteric balloonR (BIB) was developed to treat these patients. This article summarizes the current knowledge and experience with this balloon, and its advantages and disadvantages. There are very few placebo controlled studies regarding the BIB, and the results are controversial. One study shows the advantage of using the balloon compared with diet alone while another study showed no advantage of the balloon compared with a strict diet regimen. Uncontrolled studies show that balloon treatment combined with diet and physical activity had favorable results achieving both weight reduction and reduction in obesity associated morbidity. Those results were maintained a year after the balloon was removed. Mild and common side effects included vomiting and heartburn, but the balloon also caused severe complications including bowel obstruction, perforation and even death. The total rate of severe complications is estimated to be about 3%. We conclude that the intragastric balloon may be an appropriate addition to the treatment of morbid obesity, but only if combined with a proper diet, physical activity and psychological support. Patients should be carefully selected and monitored to avoid complications.
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PMID:[Intra gastric balloon for morbid obesity]. 1718 56

A rare complication of adjustable gastric banding is reported. A 65-year-old man developed recurrent vomiting, epigastric pain, and small-bowel obstruction 13 months after laparoscopic adjustable gastric banding for morbid obesity. Investigation revealed that the band had migrated completely into the gastric lumen and had passed far down the jejunum. The band was still connected by the tubing to the port chamber. By laparoscopy, the band was cut at the stomach, and removed via a jejunotomy. Postoperative course was uneventful. Complete band migration requires early removal of the band.
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PMID:Band erosion and passage, causing small bowel obstruction. 1721 47

Intestinal malrotation is usually encountered in infants. Its main complication is midgut volvulus, a situation that presents itself with bilious vomiting. This symptom allows for early surgical treatment. A delay in diagnosis and treatment may lead to catastrophic sequelae, such as extensive bowel necrosis and death. This situation is rare but well known in adults. Laparoscopic gastric banding is a popular option for treating morbid obesity. One of the consequences of this procedure may be impaired vomiting when there is an obstruction below the band. In this paper, we present a case in which a patient suffered from midgut volvulus 4 years after a laparoscopic gastric banding. Owing to impaired vomiting, the diagnosis was delayed, therefore, severely endangering the patient. This case prompted us to suggest that malrotation should be actively sought after before or during any bariatric procedure.
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PMID:Midgut volvulus following laparoscopic gastric banding--a rare and dangerous situation. 1757 Jul 79

Adjustable gastric banding is a widely used modality in some countries for the treatment of morbid obesity, and several complications have been reported. We report the unusual case of a patient who developed bilateral ulcers of the palate after intense vomiting caused by tightening of her gastric band.
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PMID:Palatal ulcers due to vomiting after gastric band tightening. 1760 73


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