Search results for "Sigmoid colon"
showing 10 items of 17 documents
Chromoendoscopy with indigocarmine improves the detection of adenomatous and nonadenomatous lesions in the colon.
2001
BACKGROUND AND STUDY AIMS Depressed early cancers and flat adenomas have a high potential for malignancy with possible infiltrating growth, despite the small size of the lesion. Japanese investigators have shown that early diagnosis and classification of these lesions is possible with the help of chromoendoscopy. The aim of this study, therefore, was to evaluate the usefulness of chromoendoscopy during routine colonoscopy. PATIENTS AND METHODS During routine colonoscopy, vital staining with indigocarmine solution (0.4 %, 1 - 10 ml) was performed on all visible lesions in 100 consecutive patients without visible inflammatory changes. If findings on macroscopic examination were unremarkable, …
Age-dependent shift-to-the-right in the localization of colorectal adenomas.
1987
The age-dependent prevalence and topographical distribution of colorectal adenomas was investigated in 1006 unselected autopsies (554 males and 452 females) in Mainz, FRG. In 200 out of 1006 autopsies (19.8%) a total of 498 adenomas of the large intestine were detected. The percentage of patients with adenomas increased continuously with age. Only 6% of all adenomas were localized in the caecum and 8% in the rectum, whereas all the other adenomas were distributed rather evenly throughout the ascending colon (23%), the transverse colon (25%), the descending colon (15%) and the sigmoid colon (23%). Analyzing the topographical distribution of adenomas for definite age groups (40-59, 60-69, 70-…
Incomplete Conventional Colonoscopy: Magnetic Resonance Colonography in the Evaluation of the Proximal Colon
2005
Background and Study Aims: The purpose of this study was to evaluate dark-lumen magnetic resonance (MR) colonography prospectively in patients with incomplete conventional colonoscopy. Patients and Methods: Thirty-two patients with incomplete conventional colonoscopy underwent same-day dark-lumen MR colonography on the basis of a standard protocol. The depiction of colorectal diseases was assessed in the following colon segments: cecum, ascending colon, transverse colon, descending colon, sigmoid colon, and rectum. The reasons for incomplete colonoscopy included high-grade stenosis in 26 patients (four with occlusive cancer, 12 with fibrotic stenosis based on recurrent sigmoid diverticuliti…
The sigma rectum pouch (Mainz pouch II)
1996
A low-pressure reservoir for urine is created by antimesenteric splitting and side-to-side anastomosis of the rectosigmoid, the expectation being to obtain better continence rates and better protection of the upper tract than are achievable by ureterosigmoidostomy. Between 1990 and August 1993 the procedure was performed in 73 patients (59 adults and 14 children) whose mean age was 43.5 years. The indications were malignancy (n = 55), bladder exstrophy/epispadias (n = 14), trauma (n = 3), and sinus urogenitalis (n = 1). Of the 73 patients, 69 were followed for a mean period of 127 (range, 1-34) months. In all, 5 early complications were encountered (6.8%). In addition, 8 late complications …
Drugs and the Colon
1983
It is not our intention to review drug effects in the colon, which was done extensively and profoundly by Forth and Rummel1 and Powell.2 Our contribution will present studies of drug effects on physiological absorption and secretion processes obtained in the intact human colon and based on results of intestinal perfusion studies of the whole colon and measurements of transepithelial electrical potential difference (PD) in the rectosigmoid colon. These are at present the practiced and—regarding perfusion studies—most accurate techniques in the hands of clinicians to directly study drug effects on a local dose-response scale in the intact human colon. Since these methods are relatively new an…
The occlusive tourniquet: a simple method for rectal stump washout during open and laparoscopic surgery.
2007
Rectal stump washout with cytolytic agents is recommended and usually performed during anterior rectal or rectosigmoid resection. The use of a linear stapler instrument during ultralow anterior resection makes the placement of pelvic clamps difficult for rectal stump washout prior to resection. The objective of this work is to demonstrate the use of a simple procedure, the occlusive tourniquet for rectal stump washout. Occlusive tourniquet applied to open technique: after complete dissection of the rectum and sigmoid colon according to the usual technique, a simple piece of tubing from an intravenous line is passed behind and around the rectum/sigmoid colon at some point distal to the tumor…
Reversal of Hartmann's procedure: a single-centre experience of 533 consecutive cases.
2018
AIM Hartmann's procedure (HP) is common. However, restoration of intestinal continuity is not so frequent. The aim of this study was to determine predictive factors which might influence outcomes following the reversal of HP. METHOD All consecutive patients who underwent elective and emergency HP in a single institution between January 1999 and December 2014 were included. Data concerning patient, disease and treatment features were collected. Univariate and multivariate binary logistic regression models were used to determine prognostic factors. RESULTS A total of 533 consecutive patients underwent HP over the 16-year period. Factors that were associated with a higher probability of revers…
Sigma-rectum pouch (Mainz pouch II).
1993
A substantial modification of the classic technique of ureterosigmoidostomy is introduced in this article. To date, this procedure has been used in 47 patients. This article reviews the surgical technique of the antemesenterial splitting of the intestine at the recto-sigmoid junction which creates a pouch by subsequent side-to-side anastomosis.
Non-occlusive mesenteric Ischemia (NOMI) in Parkinsonâs disease: Case report
2017
Non-occlusive mesenteric ischemia (NOMI) is a severe pathological condition characterized by signs and symptoms of bowel obstruction, intestinal necrosis resulting from acute and/or chronic inadequate blood perfusion, in the absence of an organic vascular obstruction detectable by imaging techniques. A 64 years old man case with a history of Parkinsonâs disease in high-functioning levodopa treatment is presented. Clinical and radiological signs of intestinal obstruction were observed. He underwent surgical operation with total colectomy and terminal ileostomy for generalized secondary peritonitis due to perforation of sigmoid colon. Ischemic pancolitis was first suspected. In third post-o…
Laparoscopic Treatment of Endoscopic Sigmoid Colon Perforation
2006
Perforation of the colon after colonoscopy is a rare but potentially lethal complication. It usually occurs when endoscopy is performed for therapeutic purposes. In these cases the election of the best treatment is difficult and still controversial. Laparoscopy is a new approach for diagnosis and treatment of this condition. We report a case of a patient who was initially treated laparoscopically after a colonoscopic perforation. A postoperative leak was detected and the patient underwent open surgery. Possible therapeutic approaches and a literature review are discussed.