title: [Reduction of the left ventricular mass in essential hypertension patients chronically treated with monotherapy].
abstract: Changes in left ventricular mass (LVM) were measured by echocardiography in 104 mild and moderate essential hypertensives treated with only one drug for at least 12 months. They were classified into 4 groups. G1: 40 patients (p) treated with atenolol (73.6 +/- 31.8 mg daily), G2: 32 p treated with enalapril maleate (17.7 +/- 8.7 mg daily), G3: 22 p treated with nifedipine (44.0 +/- 10.8 mg daily), G4: control group, 10 mild hypertensives without medication. At the end of the treatment blood pressure (BP) fell significantly in the first 3 groups (G1: 155 +/- 19/.98 +/- 11 vs. 136 +/- 11/86 +/- 15 mm Hg, G2: 163 +/- 19/104 +/- 10 vs. 139 +/- 12/90 +/- 8 mm Hg, G3: 166 +/- 17/103 +/- 7 vs. 142 +/- 7/85 +/- 7 mm Hg, p less than 0.001), but remained unchanged in G4. Heart rate was reduced significantly only in G1. Body weight did not change (71 +/- 7 vs. 67 +/- 7, p greater than .05). Patients were subclassified according to wether they had normal (N, LVM less than 120 g/m2 in females, LVm less than 135 g/m2 in males) or increased (H) LVM. There was a significant reduction in LVM in all H subgroups (G1 163 +/- 37 vs. 131 +/- 27 g/m2, G2: 155 +/- 19 vs. 126 +/- 21 g/m2, G3: 158 +/- 2 vs. 138 +/- 38 g/m2, p less than .005). The LVM/left ventricular end-diastolic volume ratio (M/V) fell in all H subgroups.(ABSTRACT TRUNCATED AT 250 WORDS)
authors: División Cardiología, Policlínica Bancaria, Buenos Aires, Argentina.
authors: H P
authors: HP
authors: Baglivo
authors: G
authors: G
authors: Fabregues
authors: H O
authors: HO
authors: Burrieza
authors: M
authors: M
authors: Marín
authors: R J
authors: RJ
authors: Esper
mesh_terms: D000328:Adult; D001262:Atenolol / Q000627:therapeutic use*; D001794:Blood Pressure / Q000187:drug effects; D006332:Cardiomegaly / Q000188:drug therapy* / Q000209:etiology; D004334:Drug Administration Schedule; D004656:Enalapril / Q000627:therapeutic use*; D005260:Female; D006801:Humans; D006973:Hypertension / Q000150:complications / Q000188:drug therapy*; D008297:Male; D008875:Middle Aged; D012107:Research Design
chemical_list: D001262:Atenolol; D004656:Enalapril
vernacular_title: Reducción de la masa ventricular izquierda en hipertensos esenciales tratados crónicamente con monoterapia.