Exaggerated Response of Renin Secretion to Captopril (Sq 14225) in Renovascular Hypertension

Yutaka Imai, Keishi Abe, Yoichi Otsuka, Yutaka Sakurai, Toru Ito, Makito Sato, Toshiaki Haruyama, Ken Omata, Masao Hiwatari

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13 Citations (Scopus)


Captopril (SQ 14225), an orally active converting enzyme inhibitor, was administered in a dose of 50mg to 12 normotensive subjects (Group I), 26 essential hypertensive patients (Group II), and 8 renovascular hypertensive patients (Group III). In Group III, 5 of the 8 patients had control plasma renin activity (PRA) similar to those in Groups I and II patients, but the PRA response to the administration of captopril was greater in 7 of the 8 patients than those in Groups I and II. These 7 patients had either bilateral or unilateral main renal artery stenosis. Captopril caused no increase in PRA in the remaining 1 who had unilateral renal artery stenosis with contralateral renal aplasia. It is concluded that this provocation test is useful as a screening procedure for the diagnosis of renovascular hypertension.

Original languageEnglish
Pages (from-to)793-802
Number of pages10
JournalJapanese Heart Journal
Issue number6
Publication statusPublished - 1980


  • Angiotensin I converting enzyme inhibitor
  • Cardiovascular response
  • Essential hypertension
  • Screening test

ASJC Scopus subject areas

  • Cardiology and Cardiovascular Medicine


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