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Regression of structural vascular changes in hypertensives after captopril treatment

S Novo1, M G Abrignani, A Pinto

  • 1Chair of Clinical Pathophysiology, University of Catania, Italy.

European Heart Journal
|August 1, 1992
PubMed

Insights

Captopril, an angiotensin-converting enzyme inhibitor, effectively lowers blood pressure in hypertensive patients. This antihypertensive treatment reduces vascular resistance and increases blood flow, indicating its efficacy in managing hypertension.

Area of Science:

  • Cardiology
  • Pharmacology

Background:

  • Essential arterial hypertension is associated with structural vascular changes.
  • Antihypertensive treatments aim to mitigate these vascular effects.

Purpose of the Study:

  • To investigate the influence of antihypertensive treatment on hypertension-related structural vascular changes.
  • To evaluate the effects of captopril on blood pressure and vascular resistance.

Main Methods:

  • 10 patients with essential arterial hypertension received placebo then captopril (75 mg b.i.d.) for 3 months.
  • Evaluated parameters included systolic blood pressure (SBP), diastolic blood pressure (DBP), mean blood pressure (MBP), basal vascular resistance, and minimal vascular resistance.
  • Blood flow was measured using strain gauge plethysmography.

Main Results:

  • Captopril significantly decreased SBP, DBP, and MBP compared to placebo (P < 0.01).
  • Basal vascular resistance decreased significantly (P < 0.01) and minimal vascular resistance decreased (P < 0.025) after captopril treatment.
  • Rest and peak blood flows significantly increased (P < 0.01) with captopril therapy.

Conclusions:

  • Captopril is an effective antihypertensive treatment, significantly reducing blood pressure.
  • The drug's efficacy is linked to reduced basal vascular resistance via vasodilating effects.
  • Captopril also demonstrates an ability to reduce minimal vascular resistance in hypertensive patients.

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