Should we be performing more randomized controlled trials evaluating surgical operations? - PubMed (original) (raw)
Should we be performing more randomized controlled trials evaluating surgical operations?
M J Solomon et al. Surgery. 1995 Sep.
Abstract
Background: The objective of this study was, first to determine what proportion of clinical treatment evaluation questions involving surgical operations could be answered by a randomized controlled trial (RCT). Second, for those questions not amenable to a RCT, to determine the problems that potentially preclude the initiation of RCT in an ideal clinical research setting.
Methods: A sample of treatment evaluation questions involving a surgical procedure was obtained by a computerized search of the surgical literature. Problems precluding a RCT were defined. Their face validity and interobserver and intraobserver reliability were assessed. By use of these criteria, the sample questions were evaluated to determine whether a RCT could be performed and, if not, the predominant reasons precluding RCT of surgical procedures.
Results: Only 38.8% of treatment evaluation questions could have been answered by a RCT in an ideal clinical research setting. Patient preference was the most common precluding problem encountered (40% of all problems). The principal precluding problem was patient preference in 23.1%, an uncommon condition in 24.2%, and lack of community (clinical) equipoise in 10%. Methodologic issues (1.2%) and surgical preference (2.3%) were infrequent precluding problems. Questions evaluating therapy for malignant disease, comparing surgical with nonsurgical therapies, and where survival was the primary outcome were more likely to have problems precluding RCT.
Conclusions: In the ideal situation RCT can be performed to evaluate only 40% of treatment questions involving surgical procedures. Patient preferences, uncommon conditions, and lack of surgical community equipoise appear to be the most common reasons precluding the of RCT of surgical operations.
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