Background: Sigmoid Volvulus is the most common form of Volvulus of the gastrointestinal tract and in Uganda; this condition is one of the top causes of intestinal obstruction. It is associated with a pre-existing redundant sigmoid colon which has a narrow attachment of the sigmoid mesentery to the posterior abdominal wall. The objectives of this study was to establish the demographic, dietary ...

Acute sigmoid volvulus is typically caused by an excessively mobile and redundant segment of colon with a stretched mesenteric pedicle. When this segment twists on its pedicle, the result can be obstruction, ischemia and perforation. A healthy, 18-year-old Caucasian woman presented to the emergency department complaining of cramping abdominal pain, distention, constipation and obstipation for t...

BACKGROUND The feasibility of laparoscopic sigmoid colectomy for diverticular disease has now been well established. We report herein our experience with laparoscopic sigmoid colectomy in 100 patients who underwent laparoscopic colectomy for chronic diverticular disease. METHODS A retrospective review was performed of a 7-year period from January 1995 to June 2002. Chronic diverticular diseas...

BACKGROUND This study critically reviews sigmoid colon resection for diverticulitis comparing open and laparoscopic techniques. METHODS We conducted a retrospective review of all open and laparoscopic cases of diverticulitis between 1992 and 2001. Data analyzed included the following: indications for operation, postoperative complications, and incidence of laparoscopic conversion to laparotom...

AIM To explore the clinical value of bone flap creation and the sinus protection in the approach of retrosigmoid keyhole craniotomy with the guidance of three-dimensional (3D) sliced computer tomography (CT) reconstruction of the skull transverse sinus and sigmoid sinus groove. MATERIAL AND METHODS The scalp tracings of the transverse sinus and sigmoid sinus groove of 108 posterior fossa lesi...

The distribution of regulatory peptides was studied in the separated mucosa, submucosa and muscularis externa taken at 10 sampling sites encompassing the whole human sigmoid colon (five sites), rectum (two sites), and anal canal (three sites). Consistently high concentrations of VIP were measured in the muscle layer at most sites (proximal sigmoid: 286 (16) pmol/g, upper rectum: 269 (17), a mod...

resection is the most common treatment choice for sigmoid volvulus, a common complication in our region. a new minimally invasive technique for sigmoid resection with local anesthesia was done in this study. this method is invented to avoid general on regional anesthesia in high-risk patients. nineteen patients were evaluated and then 14 were enrolled in this study. sigmoidectomy with a left lo...

Special attention must be paid to an efficient approximation of the sigmoid function in implementing FPGA-based reprogrammable hardware-based artificial neural networks. Four previously published piecewise linear and one piecewise second-order approximation of the sigmoid function are compared with SIG-sigmoid, a purely combinational approximation. The approximations are compared in terms of sp...

Introduction Dose calculation of tumor and surrounding tissues is essential during prostate brachytherapy. Three radioisotopes, namely, 125I, 103Pd, and 131Cs, are extensively used in this method. In this study, we aimed to calculate the received doses by the prostate and critical organs using the aforementioned radioactive seeds and to investigate the effect of scattering contribution for the ...