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Publication Type
Journal Article
Author, Analytic
West, W. M. ; Brady-West, D. C. ; McDonald, A. H. ; Hanchard, B. ; Fearon-Boothe, D.
Author Affiliation, Ana.
n/a
Article Title
Ultrasound and white blood cell counts in suspected acute appendicitis
Medium Designator
n/a
Connective Phrase
n/a
Journal Title
West Indian Medical Journal
Translated Title
n/a
Reprint Status
n/a
Date of Publication
2006
Volume ID
55
Issue ID
2
Page(s)
100-2
Language
eng
Connective Phrase
n/a
Location/URL
http:; caribbean.scielo.org/pdf/wimj/v55n2/a07v55n2.pdf
ISSN
0043-3144 (Print)
Notes
n/a
Abstract
The use of radiological studies as diagnostic tools in patients with suspected acute appendicitis has increased recently. In this setting, abdominal ultrasonography is viewed as a possible means of avoiding unnecessary surgery. This retrospective study of patients who underwent laparotomy for suspected acute appendicitis was undertaken to determine the sensitivity and specificity of ultrasound in diagnosing acute appendicitis and the frequency of leucocytosis in patients in whom the diagnosis was confirmed by histology. The ultrasound and surgery registers were reviewed to identify 254 referrals for abdominal ultrasound between January 2001 and December 2002 because of a clinical suspicion of acute appendicitis. Of these cases, 223 did not proceed to surgery. The study sample comprised 31 patients who had appendectomies after abdominal ultrasonography. The ultrasound reports, pathological diagnoses and white blood cell counts of these patients were obtained and formed the basis for the analysis. A histological diagnosis was available for 30 cases, in 17 of whom appendicitis was confirmed In these patients, positive ultrasound and leucocytosis were present in five (29%) and nine (53%) respectively. Ultrasound showed 92% specificity and 29% sensitivity for the pre-operative diagnosis of appendicitis. The positive predictive value of ultrasonography (83%) was higher than that of leucocytosis (69%). The sensitivity and specificity of ultrasound and leucocytosis in this study indicate limited utility as preoperative diagnostic tools.....
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