Publications by authors named "Frizelle F"
Background: The aim of this study was describe the frequency and characteristics of perianal surgical intervention (PSI) for Crohn's disease in a population-based cohort of patients with inflammatory bowel disease (IBD).
Methods: A total of 1421 patients with IBD were recruited, representing approximately 91 per cent of people with IBD in Canterbury, New Zealand. The clinical notes were screened to confirm the diagnosis and extract clinical data, including details of PSIs.
Background: This study aimed to determine the sensitivity of computed tomographic colonography (CTC) in diagnosing colorectal cancer and to explore the reasons why these cancers are missed on CTC.
Methods: Patients who underwent CTC in the 56-month period from 1 January 2004 to 1 September 2008, and all cases of colorectal cancer recorded in the National Cancer Registry database from 1 January 2004 to 1 December 2008, were identified. Cases from the two data sets were then matched to identify all patients in whom CTC had been performed more than 6 weeks before a histological report was available.
Background: The natural history of acute diverticulitis remains unclear, with the role of prophylactic surgery following conservatively managed diverticulitis increasingly controversial. This study investigated recurrence rates, patterns and complications after conservatively managed diverticulitis.
Methods: This was a retrospective chart review of all patients admitted with diverticulitis between June 1997 and June 2002.
Background: This study investigated the relationship of American Society of Anesthesiologists Physical Status (ASA-PS) grade and degree of surgical insult to long-term postoperative survival.
Methods: National death records to June 2007 were matched against records of patients undergoing elective surgery between January 1997 and December 2001. Stratified survival analysis was performed to allow baseline hazard functions to vary among four patient groups (15-64 years with no malignancy, at least 65 years with no malignancy, 15-64 years with malignancy and at least 65 years with malignancy).
Objective: To determine the prevalence, frequency and colonization patterns of Helicobacter species throughout the colon.
Method: Patients having initial colonoscopy for nonspecific gastrointestinal disturbance had colonic biopsies taken from up to four sites during colonoscopy and examined for evidence of the Helicobacteraceae family using a group-specific PCR. Serum was also collected and examined for IgG reactivity to Helicobacter pylori.
Background: A retrospective analysis of age-related postoperative morbidity in the Australia and New Zealand prospective randomized controlled trial comparing laparoscopic and open resection for right- and left-sided colonic cancer is presented.
Methods: A total of 592 eligible patients were entered and studied from 1998 to 2005.
Results: Data from 294 patients who underwent laparoscopic and 298 who had open colonic resection were analysed; 266 patients were aged less than 70 years and 326 were 70 years or older (mean(s.
Introducing a new disclosure form for member journals of the International Committee of Medical Journal Editors.
View Article and Find Full Text PDFFolic acid supplementation and colorectal cancer risk: a meta-analysis.
Colorectal Dis
February 2011
Aim: This meta-analysis aims to determine the effect of folic acid supplementation on colorectal cancer risk.
Method: A structured search of the MEDLINE, EMBASE, Cochrane and CINAHL databases was undertaken in July 2008. All published full text English language articles were searched that included a randomized or pseudo-randomized comparison of subjects who received folate vs subjects who did not in relation to their risk of adenoma or advanced adenomatous lesions, including colorectal cancer.