title: Variation in time spent on the waiting list for elective vascular surgery: a case study.
abstract: OBJECTIVE
  To review the variation in time spent on the waiting list for elective vascular surgery provided by a single team of specialists.
  
  
  METHODS
  A prospective cohort study.
  
  
  METHODS
  An acute care hospital in Ontario.
  
  
  METHODS
  One thousand and eighty-four consecutive patients with vascular problems accepted for elective surgery between 1994 and 1998.
  
  
  METHODS
  Abdominal aortic aneurysm (AAA) repair; carotid endarterectomy (CAD); surgery for peripheral vascular disease (PVD); and arteriovenous fistula (AVF) for long-term access in patients with renal failure.
  
  
  METHODS
  Time-to-treatment curves, admission rates.
  
  
  RESULTS
  The weekly admission rate was 9.8% on average. The proportion of patients who underwent operation was 50% at 7 weeks, 75% at 14 weeks and 90% at 26 weeks. The weekly admission rate varied according to clinical priority, from 42% in priority class 1 to 6% in class 5. In any priority class, the admission rate was not constant over time. Although the proportion of patients operated on within the maximum recommended time in classes 1, 2, 3 and 4 was 52%, 50%, 35% and 20% respectively, the last 10% of patients waited 5 to 16 weeks, 10 to 16 weeks, 16 to 37 weeks, and 25 to 39 weeks respectively. There were statistically significant differences in waiting time by surgical procedure among the least urgent cases, with median times of 7, 10 and 19 weeks for AVF, PVD and CAD procedures, respectively.
  
  
  CONCLUSIONS
  When queuing procedures are uniform, the waiting times for access to elective vascular surgery provided by the same team of specialists differ considerably for patients with equal surgical needs and urgency. It remains to be examined whether delays in scheduling operations and cancellations affect the waiting time after adjustment for urgency and comorbidity.
authors.affiliation: Department of Surgery, Queen's University, Kingston, Ont. bs9@post.queensu.ca
authors.forename: B
authors.initials: B
authors.lastname: Sobolev
authors.forename: P
authors.initials: P
authors.lastname: Brown
authors.forename: D
authors.initials: D
authors.lastname: Zelt
mesh_terms: D000367:Age Factors; D002170:Canada; D015331:Cohort Studies; D003710:Demography; D017558:Elective Surgical Procedures / Q000706:statistics & numerical data*; D005260:Female; D006297:Health Services Accessibility / Q000706:statistics & numerical data; D006753:Hospital Records; D006801:Humans; D008297:Male; D010343:Patient Admission / Q000706:statistics & numerical data*; D011446:Prospective Studies; D012737:Sex Factors; D013997:Time Factors; D014656:Vascular Surgical Procedures / Q000706:statistics & numerical data*; D014850:Waiting Lists