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Background: The pathogenesis of delayed gastric emptying (DGE), a common complication of pancreaticoduodenectomy, is unclear. Loss of skeletal muscle mass (sarcopenia) is associated with post-pancreaticoduodenectomy complications; however, few studies have investigated the relationship between sarcopenia and DGE. The aim of this study was to investigate whether post-pancreaticoduodenectomy DGE is affected by pre-operative skeletal muscle mass. Methods: We retrospectively analysed the data of 112 consecutive patients who had undergone pancreaticoduodenectomy and divided them into the following two groups: no DGE (n = 100) and with DGE (n = 12). Patients were stratified by quartiles according to each element of body composition. The lowest quartile for skeletal muscle mass was defined as having sarcopenia. Results: Ten and two patients had grades B and C DGE, respectively. According to univariate analysis, body mass index (P = 0.031), clinically relevant post-operative pancreatic fistula (P < 0.001) and skeletal muscle mass (P = 0.002) were significantly associated with DGE. According to multivariate analysis, high body mass index (≥25 kg/cm 2 ) (P = 0.005), post-operative pancreatic fistula (P = 0.027) and low skeletal muscle mass (P = 0.004) were independently associated with DGE. Conclusion: Sarcopenia is an independent predictor of DGE after pancreaticoduodenectomy. © 2019 Royal Australasian College of Surgeons ANZ J Surg 89 (2019) E433-E437 ANZJSurg.com © 2019 Royal Australasian College of Surgeons E436 Shintakuya et al.

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HighlightsWe must determine whether the plug or the onlay patch is the cause of chronic pain.Laparoscopic plug removal for nociceptive pain due to a plug meshoma is effective.We could avoid causing new-onset pain by not creating a groin incision.

Background Chronic idiopathic colonic pseudo-obstruction (CICP) is a rare disease, defined as a condition of the chronically damaged colon, without obstruction or stenosis, and a pathological abnormality in the myenteric plexus. To date, there is no effective medication for CICP, and existing medication is not useful, making surgery the only effective treatment. Laparoscopic surgery is useful for reducing surgical trauma and postoperative adhesion. Herein, we report a patient with recurrent laxative-uncontrolled bowel obstruction, who underwent successful treatment with laparoscopic total colectomy based on preoperative detailed evaluation of bowel function. Case presentation A 77-year-old female patient without any past abdominal or psychological medical history was referred to our hospital because of chronic constipation and abdominal pain. Contrast-enhanced computed tomography, barium enema, cine magnetic resonance imaging, and defecography indicated an enlarged colon from the cecum to the transverse colon (proximal to the splenic flexure) without apparent mechanical obstruction, and a collapsed colon from the descending colon to the rectum, with reduced peristalsis. Bowel movements of the rectum and anorectal function were normal. Based on these findings, we diagnosed CICP and performed laparoscopic total colectomy and ileo-rectal anastomosis in this case. Postoperative recovery was good, without the need for postoperative laxatives. Pathologically, no degeneration of the muscle layers or Auerbach’s plexus was found in the resected specimen. Conclusion Surgery is the only effective treatment for patients with CICP. Careful imaging before surgery is important for detecting the extent of excision required. This will reduce the need for additional surgery due to symptom relapse in the remnant colon. However, continued observation of the patient is required.