- Case report
- Open Access
- Open Peer Review
Management of small bowel volvulus in a patient with simultaneous pancreas-kidney transplantation (SPKT): a case report
© Aydin et al; licensee BioMed Central Ltd. 2007
- Received: 10 January 2007
- Accepted: 28 September 2007
- Published: 28 September 2007
There are several surgical complications which can occur following simultaneous pancreas-kidney transplantation (SPKT). Although intestinal obstruction is known to be a common complication after any type of abdominal surgery, the occurrence of small bowel volvulus, which is one of the rare causes of intestinal obstruction, following SPKT has not been published before. A 24-year-old woman suffering from type I diabetes mellitus with complications of nephropathy resulting in end stage renal disease (ESRD), neuropathy and retinopathy underwent SPKT. On the postoperative month 5, she was brought to the emergency service due to abdominal distention with mild abdominal pain. After laboratory research and diagnostic radiological tests had been carried out, she underwent exploratory laparotomy to determine the pathology for acute abdominal symptoms. Intra-operative observation revealed the presence of an almost totally ischemic small bowel which had occurred due to clockwise rotation of the mesentery. Initially, simple derotation was performed to avoid intestinal resection because of her risky condition, particularly for short bowel syndrome, and subsequent intestinal response was favorable. Thus, surgical treatment was successfully employed to solve the problem without any resection procedure. The patient's postoperative follow-up was uneventful and she was discharged from hospital on postoperative day 7. According to our clinical viewpoint, this study emphasizes that if there is even just a suspicion of acute abdominal problem in a patient with SPKT, surgical intervention should be promptly performed to avoid any irreversible result and to achieve a positive outcome.
- Exploratory Laparotomy
- Short Bowel Syndrome
- Iliac Fossa
Small bowel volvulus (SBV) is rarely encountered in adults. SBV generally occurs in a normal abdominal cavity and its etiology is still not clear. There are two categories of small bowel volvulus: a) primary small-bowel volvulus, in which there are no predisposing anatomical abnormalities, and b) secondary small-bowel volvulus, in which an acquired or a congenital abnormality causes rotation of the bowel . There are a few reports in the literature that small bowel volvulus occurs as a late postoperative complication. The reported operations include gastrostomy , gastrectomy  and total hip replacement . In this case report, a young woman underwent exploratory laparotomy due to small bowel volvulus after simultaneous pancreas-kidney transplantation (SPKT). This is the first report in the literature of small bowel volvulus secondary to SPKT.
Small bowel volvulus is a rare but life-threatening medical emergency. Bowel infarction can only be prevented by applying prompt preoperative investigation and immediate surgical intervention, which is the only way to overcome the problem successfully. The most frequent related conditions for secondary small bowel volvulus are bands, adhesions, Meckel's diverticulum, internal hernia, Ascariasis, and pregnancy. Other reported conditions include ileal atresia, meconium ileus, enteroenterostomy, leiomyoma of the mesentery, and operations . The suggested mechanism for secondary SBV involves obstruction of a small bowel loop at two fixed points by one of these predisposing conditions. As the loop fills with liquid, peristalsis causes it to twist around its mesentery . In this report, the etiology was the previous pancreas transplant surgery including enteric diversion. The suggested mechanism of the SBV was thought to be the movement of the jejunum to the right lower quadrant from the left upper quadrant during the anastomosis, which caused the rotation of the remaining small intestine segment. Thus, it is likely that the localization of the pancreas and kidney was responsible for this complication. Changing the location by placing the pancreas in the left iliac fossa and the kidney in the right iliac fossa may prevent the rotation of the small intestine in the patients undergoing SPKT. Likewise, bladder drainage to avoid enteric anastomosis is another solution that could prevent this technical complication.
SBV is considered to be a rare condition for patients who are administered exploratory laparotomy for acute abdominal pain. Small bowel volvulus is presented with the classic clinical features of intestinal obstruction including severe abdominal pain as the principal symptom that persists despite routine analgesics, in addition to nausea, vomiting and abdominal distension . Nevertheless, this patient had obscure symptoms which were likely due to the existence of a diabetic condition for a long time. Physical examination may not identify the specific etiology for mild abdominal pain in patients with visceral neuropathy secondary to diabetes mellitus . SPKT transplant cases demand specific clinical expertise that takes into consideration the various difficulties based on the neuropathy of those cases. In cases with a short history, anorexia, vomiting or abdominal distension with a central abdominal pain, we should be increasingly aware of intestinal obstruction, particularly in the postoperative period.
Therapeutic methods are primarily based on causative factors; these options include both simple derotation and resection. However, in the event of a bowel infarction, resection may be necessary. The optimum therapeutic approach for the patients with viable small intestine is uncertain; the alternatives are resection and fixation or simple derotation . If the intestine is gangrenous, almost all authors recommend resection, with or without anastomosis . On the other hand, after the ischemic condition has improved with simple derotation, vascular dilatators (as vasoactive agents) and warm gauze swabs should be kept around the intestines for at least 30 minutes in order to perform the optimal surgical treatment for SBV. Therefore, considering the diabetic state and compromised immunity of our patient, we initially only applied simple derotation with alternative anti-ischemic procedures that included keeping the intestines warm and applying papaverine directly. This procedure may facilitate the resumption of normal bowel circulation. Thus, if reexamination of the intestines reveals significant vascularization in the ischemic bowel segment, the need for the radical surgical intervention can be prevented.
The outcome of SBV is dependent on rapid diagnosis followed by exploratory laparotomy. Because it is so uncommon, it is probable that misdiagnosis accounts for the higher incidence of gangrenous SBV in the Western world . There is a significant difference between the mortality rates of non-gangrenous SBV (5.8% to 8%)  and gangrenous SBV (20% to 100%) . In the course of clinical suspicion of intestinal obstruction due to volvulus, intensive preoperative care and low threshold for exploratory laparotomy are recommended to decrease the higher morbidity and mortality rates.
In conclusion, this rare but serious complication resulted in a small bowel obstruction which required prompt surgical intervention. A high level of clinical awareness can ensure low mortality rates. Particularly for general surgeons, small bowel volvulus should always be in differential diagnosis in the patients with a history of previous surgery involving especially intestines. In cases such as this where the patient's clinical symptoms are not clear due to her neuropathy, the length of time between reporting of the symptoms and operation time is important. Although it is still uncertain which surgical treatment is optimal, the etiology, the length of the portion of intestine involved and the blood supply should be considered when choosing the optimum procedure. If rotation involves the majority of the small intestine, the risk of short bowel syndrome is certain, and we should always allow for the possibility that simple derotation will achieve positive results.
Thanks to Devrim Bozkurt, MD (Resident in the Organ Transplantation and Research Center, Ege University School of Medicine) for help in clinical diagnosis.
*The patient approved her own consent form.
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