title: [Definition and consequences of blocking the renin-angiotensin system by converting enzyme inhibition].
abstract: 46 patients (39 males), mean age 51 years (range 33-66), were randomly allocated to two different groups of treatment if their diastolic blood pressure was superior to 90 mmHg after a one-month treatment by 20 mg of enalapril. In the first group (ENA), 23 patients were given higher dosages of enalapril (40 and, if necessary 60 mg once-a-day). In the second group (HCTZ) 23 patients were given enalapril 20 mg and hydrochlorothiazide 25 and, if necessary, 50 mg once-a-day. Dosages were eventually increased after 2 weeks and evaluation of the results was performed after 4 weeks on treatment. Blood pressure was monitored in the supine position, at 3 minutes interval for thirty minutes, by an automatic device based on oscillometric method. Two successive measurements with a standard sphygmomanometer were performed by the physician at the end of the recording. No patient withdrew from the study nor was lost to follow-up. At the end of the study, 14 patients in the ENA group were receiving enalapril 60 mg once-a-day and 8 patients in the HCTZ group were receiving 50 mg of hydrochlorothiazide. Blood pressure was significantly lower in teh HCTZ group with the automatic device (130 +/- 9/80 +/- 8 vs 141 +/- 5/86 +/- 8 mmHg, p less than 0.01/p less than 0.05) and with the sphygmomanometer (134 +/- 10/89 +/- 6 vs 149 +/- 16/94 +/- 5 mmHg, p less than 0.001/p less than 0.01).(ABSTRACT TRUNCATED AT 250 WORDS)
authors.affiliation: Service d'Hypertension artérielle, hôpital Broussais, Paris.
authors.forename: P
authors.initials: P
authors.lastname: Sassano
authors.forename: G
authors.initials: G
authors.lastname: Chatellier
authors.forename: E
authors.initials: E
authors.lastname: Billaud
authors.forename: P
authors.initials: P
authors.lastname: Corvol
authors.forename: J
authors.initials: J
authors.lastname: Ménard
mesh_terms: D000328:Adult; D000368:Aged; D000450:Aldosterone / Q000097:blood; D001794:Blood Pressure / Q000187:drug effects; D004334:Drug Administration Schedule; D004656:Enalapril / Q000008:administration & dosage* / Q000627:therapeutic use; D005260:Female; D006801:Humans; D006852:Hydrochlorothiazide / Q000008:administration & dosage* / Q000627:therapeutic use; D006973:Hypertension / Q000097:blood / Q000188:drug therapy*; D008297:Male; D008875:Middle Aged; D011897:Random Allocation
chemical_list: D006852:Hydrochlorothiazide; D000450:Aldosterone; D004656:Enalapril
vernacular_title: Définition et conséquences du blocage du système rénine-angiotensine par l'inhibition de l'enzyme de conversion.