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[Usefulness of angiotensin converting enzyme inhibitors in the diagnosis of renovascular hypertension. III. Evaluation of the validity of the captopril test and the reno-scintigraphic captopril test in the diagnosis of renovascular hypertension according to accepted criteria].

Abstract
The aim of the study was to evaluate diagnostic validity of captopril test and scintigraphic test before and after captopril for the detection of renovascular hypertension (RVH) according to applied criteria. Employing blood pressure response to captopril as a criteria sensitivity was 37.0%, specificity 92.1%, positive predictive value 75.0% and negative predictive value 70.2% in the captopril test. Applying plasma renin activity (PRA) response to captopril as a criteria sensitivity was 92.5%, specificity 100%, positive predictive value 100% and negative predictive value 96.0% in the same test. Renin captopril test has excellent sensitivity and positive predictive value, is easy to perform and inexpensive and therefore may be a useful screening test for RVH in unselected population. With the own criteria used, captopril renoscintigraphy detected RVH with 87.5% sensitivity, 91.7% specificity, 87.5% positive predictive value and 91.7% negative predictive value. Captopril renoscintigraphy is an accurate diagnostic test for the identification of RVH in a clinically selected high-risk population. Common evaluation of both tests does not improve their accuracy in diagnosis of RVH.
AuthorsA Posadzy-Małaczyńska
JournalPrzeglad lekarski (Przegl Lek) Vol. 54 Issue 9 Pg. 591-6 ( 1997) ISSN: 0033-2240 [Print] Poland
Vernacular TitlePrzydatność inhibitorów enzymu konwertujacego w diagnostyce nadciśnienia naczyniowo-nerkowego. III. Ocena skuteczności diagnostycznej reninowego testu kaptoprylowego i renoscyntygraficznego testu kaptoprylowego w rozpoznawaniu nadciśnienia naczyniowo-nerkowego w zalezności od przyjetych kryteriów.
PMID9501677 (Publication Type: Clinical Trial, Journal Article)
Chemical References
  • Angiotensin-Converting Enzyme Inhibitors
Topics
  • Angiotensin-Converting Enzyme Inhibitors
  • Humans
  • Hypertension, Renovascular (diagnosis, diagnostic imaging)
  • Mass Screening (methods)
  • Predictive Value of Tests
  • Radionuclide Imaging
  • Reproducibility of Results
  • Sensitivity and Specificity

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