Systematic quantitative overviews of the literature to determine the value of diagnostic tests for predicting acute appendicitis: study protocol.

Abstract:

BACKGROUND:Suspected acute appendicitis is the most frequent cause for emergency operations in visceral surgery worldwide. In approximately twenty percent of all cases however, the diagnosis is incorrect and patients undergo surgery without having acute appendicitis. Operations of bland appendices put patients at risk and entail a serious waste of resources. Several highly accurate tests have been introduced to diagnose acute appendicitis. The false positive rate however, has not changed over the last twenty years. Given the variation that exists in both practice and research, the uncertainty regarding the quality of the underlying evidence, there is a clear need for comprehensive, systematic and quantitative overviews of the diagnostic value of the various tests purported to be predictive of acute appendicitis. METHODS:Literature will be identified searching general bibliographic databases (MEDLINE and EMBASE), specialist computer databases (DARE, Cochrane Database of Systematic Reviews, conference proceedings, MEDION, SCISEARCH, BIOSIS) without language restrictions. We will contact experts and the manufacturers of tests. Hand-searching will complete our searches. Identified articles will be selected according to populations, tests, outcomes and study design. Papers meeting the selection criteria will be appraised to rate their methodological quality. Analysis will include exploration of heterogeneity in results. We will conduct meta-analyses to generate summary estimates of test accuracy measures and summary ROC curves where appropriate. If meta-analysis is considered to be inappropriate, we will describe the identified evidence in the context of appraised quality. DISCUSSION:These reviews should lead to formulation of recommendations for current practice and future research.

journal_name

BMC Surg

journal_title

BMC surgery

authors

Bachmann LM,Bischof DB,Bischofberger SA,Bonani MG,Osann FM,Steurer J

doi

10.1186/1471-2482-2-2

keywords:

subject

Has Abstract

pub_date

2002-04-10 00:00:00

pages

2

issn

1471-2482

journal_volume

2

pub_type

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