title: Surgical time and motion: the intermediate equivalent revisited.
abstract: The relationship between operative time, the intermediate equivalent value (IEV) and the complexity of common general surgical operations was examined. Correlation was found between the BUPA schedule values for procedures categorized as intermediate and major, but complex major vascular reconstruction and oesophagogastric resection for cancer occupied significantly more theatre time than the four intermediate equivalents allocated by the Collins or BUPA schedule. Moreover, anaesthetic preparation time for complex major surgery in the latter surgical subspecialities contributed at least one further intermediate value. Re-evaluation of the ideal IEV weighting of all surgical operations including anaesthetic input from larger similar audits would allow more accurate audits of surgeons' work-load, and also facilitate transparent intensive management of operating theatre resource.
authors.affiliation: Department of Surgery, Royal Gwent Hospital, Newport, UK.
authors.forename: P S P
authors.initials: PS
authors.lastname: Senapati
authors.forename: J D
authors.initials: JD
authors.lastname: Barry
authors.forename: P
authors.initials: P
authors.lastname: Edwards
authors.forename: I
authors.initials: I
authors.lastname: Hodzovic
authors.forename: K
authors.initials: K
authors.lastname: Shute
authors.forename: W G
authors.initials: WG
authors.lastname: Lewis
mesh_terms: D003253:Consultants; D013502:General Surgery / Q000458:organization & administration* / Q000706:statistics & numerical data; D006767:Hospitals, District; D006801:Humans; D012189:Retrospective Studies; D013514:Surgical Procedures, Operative / Q000706:statistics & numerical data; D013996:Time and Motion Studies; D006113:United Kingdom; D016526:Workload