title: Feasibility of high-volume screening sigmoidoscopy using a flexible fiberoptic endoscope and a disposable sheath system.
abstract: OBJECTIVE
  Sigmoidoscopy is an effective screening test for colorectal cancer but has yet to have a major impact on mortality because, in part, of inadequate utilization by physicians. To address concerns of inefficient use of time and resources, we examined the feasibility of high volume, single-day flexible sigmoidoscopy (FS) screening sessions using an innovative fiberoptic sigmoidoscope with a disposable sheath system.
  
  
  METHODS
  All City of Boston employees over the age of 50 yr (n = 6137) were invited by mail to undergo a screening FS at Boston City Hospital (BCH). Respondents (n = 564) were contacted by phone by the program coordinator on receipt of a prepaid postcard and were scheduled (n = 227) consecutively into 15-min slots on 1 of 6 1/2-day (3-h) weekend sessions. Preregistration was completed at BCH during the week before each session and included enrollment, completion of a brief risk questionnaire, documentation of informed consent, and bowel prep instructions. Procedures were performed by three physician endoscopists rotating among four endoscopy rooms per session. Each room was staffed with a nurse to aid in patient care and a technician to set up equipment.
  
  
  RESULTS
  A total of 198 of the 227 (87%) scheduled patients underwent screening FS during the three sessions. Physicians performed a mean of 3.5 procedures per room per hour, or 4.7 procedures per hour overall, with a mean depth of scope insertion of 51 +/- 10 cm and a mean procedure time of 4.7 +/- 3.3 min. Equipment set-up time and patient turnaround time averaged 4.6 +/- 1.7 min and 11.0 +/- 6.0 min, respectively. Polyps were detected in 29 (14.6%) patients, and a Dukes' A cancer was detected in one (0.5%). The only complication was a cardiac arrhythmia. A crude estimate of direct costs approximated $ 75 per examination.
  
  
  CONCLUSIONS
  High volume, single-day FS using the fiberoptic sigmoidoscope with a disposable sheath system offers an effective strategy for enhancing physicians compliance, and possibly patient compliance, with screening sigmoidoscopy through more efficient use of time and resources.
authors.affiliation: Department of Medicine, Boston City Hospital, Massachusetts, USA.
authors.forename: P C
authors.initials: PC
authors.lastname: Schroy
authors.forename: S
authors.initials: S
authors.lastname: Wilson
authors.forename: N
authors.initials: N
authors.lastname: Afdhal
mesh_terms: D000368:Aged; D001900:Boston; D003111:Colonic Polyps / Q000175:diagnosis / Q000191:economics / Q000517:prevention & control; D015179:Colorectal Neoplasms / Q000175:diagnosis / Q000191:economics / Q000517:prevention & control; D003365:Costs and Cost Analysis; D005240:Feasibility Studies; D005260:Female; D005336:Fiber Optic Technology / Q000191:economics / Q000295:instrumentation / Q000379:methods / Q000706:statistics & numerical data; D006801:Humans; D008297:Male; D008403:Mass Screening / Q000191:economics / Q000295:instrumentation / Q000379:methods / Q000706:statistics & numerical data*; D008875:Middle Aged; D020694:Sigmoidoscopes; D012812:Sigmoidoscopy / Q000191:economics / Q000379:methods / Q000706:statistics & numerical data*