The Experts below are selected from a list of 192 Experts worldwide ranked by ideXlab platform
Gota Saito - One of the best experts on this subject based on the ideXlab platform.
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comparisons of rigid Proctoscopy flexible colonoscopy and digital rectal examination for determining the localization of rectal cancers
Diseases of The Colon & Rectum, 2018Co-Authors: Akira Tanaka, Sotaro Sadahiro, Toshiyuki Suzuki, Kazutake Okada, Gota SaitoAbstract:BACKGROUND:Rigid Proctoscopy is considered essential for rectal tumor localization, although the current gold standard for detection of colorectal cancers is colonoscopy. The European Society for Medical Oncology Guidelines indicate that rigid and flexible endoscopies afford essentially identical re
B Appleton - One of the best experts on this subject based on the ideXlab platform.
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a temporary solution to light source failure in Proctoscopy rigid sigmoidoscopy
Annals of The Royal College of Surgeons of England, 2011Co-Authors: A J Beamish, J J Foster, B AppletonAbstract:It is not uncommon for a Proctoscopy or rigid sigmoidoscopy light source to fail, sometimes at the most inconvenient of times. Replacement bulbs or light sources are often unobtainable, especially out of hours. A temporary solution is to remove the bulb and mains supply unit from the light source and insert a disposable pen torch in its place (Fig 1). These are commonplace on most wards and cheap. The pen torch fits snugly into the casing of the light source, providing illumination. While less bright than the original light source, a useable scope results. The added advantage of portability is also conveyed. Figure 1 Demonstration of disposable pen torch as a temporary light source
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A temporary solution to light source failure in Proctoscopy/rigid sigmoidoscopy.
Annals of The Royal College of Surgeons of England, 2011Co-Authors: A J Beamish, J J Foster, B AppletonAbstract:It is not uncommon for a Proctoscopy or rigid sigmoidoscopy light source to fail, sometimes at the most inconvenient of times. Replacement bulbs or light sources are often unobtainable, especially out of hours. A temporary solution is to remove the bulb and mains supply unit from the light source and insert a disposable pen torch in its place (Fig 1). These are commonplace on most wards and cheap. The pen torch fits snugly into the casing of the light source, providing illumination. While less bright than the original light source, a useable scope results. The added advantage of portability is also conveyed. Figure 1 Demonstration of disposable pen torch as a temporary light source
Akira Tanaka - One of the best experts on this subject based on the ideXlab platform.
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comparisons of rigid Proctoscopy flexible colonoscopy and digital rectal examination for determining the localization of rectal cancers
Diseases of The Colon & Rectum, 2018Co-Authors: Akira Tanaka, Sotaro Sadahiro, Toshiyuki Suzuki, Kazutake Okada, Gota SaitoAbstract:BACKGROUND:Rigid Proctoscopy is considered essential for rectal tumor localization, although the current gold standard for detection of colorectal cancers is colonoscopy. The European Society for Medical Oncology Guidelines indicate that rigid and flexible endoscopies afford essentially identical re
Frede Olesen - One of the best experts on this subject based on the ideXlab platform.
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overall use of Proctoscopy in general practice and possible relation to the stage of rectal cancer
Family Practice, 1992Co-Authors: Henrik Toft Sorensen, Ejler Ejlersen, Jens Mollerpetersen, Henrik Rasmussen, Frede OlesenAbstract:: Data from the Danish National Health Service records on activities of each of 146 general practices in the county of North Jutland, Denmark, were studied to determine whether the use of Proctoscopy influenced the stage at which cancer of the rectum was recognized. Information for all patients in the county who received the diagnosis of cancer of the rectum was obtained from the Danish Cancer Registry. Proctoscopy was performed significantly more often in partnership practices (96%) than in single practices (81%). The frequency with which the test was used varied from 1 to 107 proctoscopies per general practitioner per year. In the 95 patients with cancer of the rectum, no relationship was found between the stage (Dukes') at the time of diagnosis and work-load, size and activity of practice, or use of Proctoscopy.
B. Clark - One of the best experts on this subject based on the ideXlab platform.
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Predicting polyposis severity by Proctoscopy
Diseases of the Colon & Rectum, 2001Co-Authors: J. Church, C. Burke, E. Mcgannon, O. Pastean, B. ClarkAbstract:PURPOSE: Patients with familial adenomatous polyposis need prophylactic colectomy and ileorectal anastomosis or restorative proctocolectomy. Preoperative rectal polyp counts have been used as one factor to determine which operation should be done, triaging patients according to risk of rectal cancer or completion proctectomy after ileorectal anastomosis. This study was designed to examine the reliability of preoperative Proctoscopy in predicting familial adenomatous polyposis severity and outcome after ileorectal anastomosis. METHODS: Familial adenomatous polyposis patients were categorized according to preoperative Proctoscopy as follows: Group 1, 5 or fewer adenomas; Group 2, 6 to 19 adenomas; Group 3, 20 or more adenomas. Familial adenomatous polyposis severity was defined as mild if there were 1,000 polyps. RESULTS: A total of 213 patients were reviewed, 80 in Group 1, 59 in Group 2, and 74 in Group 3. There was no difference among the groups in mean age at presentation. Patients with fewer than five rectal adenomas were predominately females. They rarely had symptoms (22.8 percent), had mostly mild polyposis (86.5 percent), and in 74 of 80 cases underwent ileorectal anastomosis. Only six underwent restorative proctocolectomy. Of those having an ileorectal anastomosis, five needed later proctectomy, none for cancer. Patients with 6 to 19 rectal polyps were a similar group to those with 5 or fewer. Most were asymptomatic (67.8 percent), most had mild polyposis (81.6 percent), and 54 of 59 underwent ileorectal anastomosis (5 had restorative proctocolectomy). Only 3 of the 54 having ileorectal anastomosis needed subsequent proctectomy, 2 for rectal cancer. The patients with 20 or more rectal polyps were different. They usually presented with symptoms (86 percent), the majority (56.6 percent) had severe polyposis, and only 50 percent (37/74) underwent ileorectal anastomosis, the other half having restorative proctocolectomy. Of the 37 patients with an ileorectal anastomosis, 13 needed later proctectomy (35.1 percent), 4 for cancer (10.8 percent). CONCLUSION: Fewer than five rectal adenomas at presentation almost always predicts mild disease, and patients do well after ileorectal anastomosis. Twenty or more adenomas usually means severe disease. Patients with 6 to 19 adenomas are often mildly affected, but their phenotype is less benign than that of patients with fewer than five polyps. Although not foolproof, Proctoscopy is a useful test in triaging patients with familial adenomatous polyposis according to disease severity.
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predicting polyposis severity by Proctoscopy how reliable is it
Diseases of The Colon & Rectum, 2001Co-Authors: James M. Church, E. Mcgannon, O. Pastean, Carol A Burke, B. ClarkAbstract:PURPOSE: Patients with familial adenomatous polyposis need prophylactic colectomy and ileorectal anastomosis or restorative proctocolectomy. Preoperative rectal polyp counts have been used as one factor to determine which operation should be done, triaging patients according to risk of rectal cancer or completion proctectomy after ileorectal anastomosis. This study was designed to examine the reliability of preoperative Proctoscopy in predicting familial adenomatous polyposis severity and outcome after ileorectal anastomosis. METHODS: Familial adenomatous polyposis patients were categorized according to preoperative Proctoscopy as follows: Group 1, 5 or fewer adenomas; Group 2, 6 to 19 adenomas; Group 3, 20 or more adenomas. Familial adenomatous polyposis severity was defined as mild if there were 1,000 polyps. RESULTS: A total of 213 patients were reviewed, 80 in Group 1, 59 in Group 2, and 74 in Group 3. There was no difference among the groups in mean age at presentation. Patients with fewer than five rectal adenomas were predominately females. They rarely had symptoms (22.8 percent), had mostly mild polyposis (86.5 percent), and in 74 of 80 cases underwent ileorectal anastomosis. Only six underwent restorative proctocolectomy. Of those having an ileorectal anastomosis, five needed later proctectomy, none for cancer. Patients with 6 to 19 rectal polyps were a similar group to those with 5 or fewer. Most were asymptomatic (67.8 percent), most had mild polyposis (81.6 percent), and 54 of 59 underwent ileorectal anastomosis (5 had restorative proctocolectomy). Only 3 of the 54 having ileorectal anastomosis needed subsequent proctectomy, 2 for rectal cancer. The patients with 20 or more rectal polyps were different. They usually presented with symptoms (86 percent), the majority (56.6 percent) had severe polyposis, and only 50 percent (37/74) underwent ileorectal anastomosis, the other half having restorative proctocolectomy. Of the 37 patients with an ileorectal anastomosis, 13 needed later proctectomy (35.1 percent), 4 for cancer (10.8 percent). CONCLUSION: Fewer than five rectal adenomas at presentation almost always predicts mild disease, and patients do well after ileorectal anastomosis. Twenty or more adenomas usually means severe disease. Patients with 6 to 19 adenomas are often mildly affected, but their phenotype is less benign than that of patients with fewer than five polyps. Although not foolproof, Proctoscopy is a useful test in triaging patients with familial adenomatous polyposis according to disease severity.