Document Detail


The Negative Appendectomy Rate: Who Benefits From Preoperative CT?
MedLine Citation:
PMID:  21940573     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
OBJECTIVE: The purpose of this article is to determine the negative appendectomy rates of patients who did and did not undergo preoperative CT and to determine, more specifically, whether men benefit from preoperative CT. MATERIALS AND METHODS: We identified 512 patients who had a nonincidental appendectomy between July 1, 2002, and June 30, 2007. Pathology records were compared with a radiology records search to determine which patients underwent preoperative CT. Proportions of patients were compared between groups using the Fisher exact test. RESULTS: Of 512 patients who had a nonincidental appendectomy, 465 (91%) underwent preoperative CT, and 47 (9%) underwent appendectomy only on the basis of clinical findings. Overall, 22 of 465 patients (4.7%) who underwent preoperative CT had a negative appendectomy compared with six of 47 patients who did not undergo preoperative imaging (negative appendectomy rate, 12.7%; p = 0.03). Among men, six of 237 (2.5%) with preoperative CT had a negative appendectomy, versus five of 42 without imaging (negative appendectomy rate, 11.9%; p = 0.01). CONCLUSION: The negative appendectomy rate was decreased for adult patients who underwent preoperative CT compared with patients who did not undergo preoperative imaging. Although most prior studies have suggested that CT is efficacious only in decreasing the negative appendectomy rate among women, we found that men benefit from CT as well.
Authors:
Emily M Webb; Alexander Nguyen; Zhen J Wang; Joseph W Stengel; Antonio C Westphalen; Fergus V Coakley
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Publication Detail:
Type:  JOURNAL ARTICLE    
Journal Detail:
Title:  AJR. American journal of roentgenology     Volume:  197     ISSN:  1546-3141     ISO Abbreviation:  -     Publication Date:  2011 Oct 
Date Detail:
Created Date:  2011-9-23     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  7708173     Medline TA:  AJR Am J Roentgenol     Country:  -    
Other Details:
Languages:  ENG     Pagination:  861-866     Citation Subset:  -    
Affiliation:
Department of Radiology, University of California, San Francisco, M372, Box 0628, 505 Parnassus Ave, San Francisco, CA 94143-0628.
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