title: The influence of beta blockers on cardiovascular reactivity and Type A behavior pattern in hypertensives.
abstract: The influence of beta blockers on Type A behavior pattern and cardiovascular reactivity was tested. Nineteen white, male hypertensive patients were divided at random into two therapeutic groups (100 mg atenolol versus 50 mg hydrochlorothiazide + 5 mg amiloride (control group) ). For each patient, the German version of the structured interview was performed before therapy and at a minimum of 4 weeks after normalization of clinical resting casual blood pressure (BP). Prior to therapy, there were no differences in age, BP at rest, cardiovascular reactivity, and Type A between the two groups. After therapy, the patients treated with beta blockers changed Type A characteristics toward Type B, regardless where they started on the Type A scale, and beta blockers attenuated cardiovascular reactivity. In this study, Type A (hypertensive patients) was not associated with greater cardiovascular reactivity.
mesh_terms: D000584:Amiloride / Q000627:therapeutic use; D001262:Atenolol / Q000627:therapeutic use*; D001794:Blood Pressure / Q000187:drug effects; D003327:Coronary Disease / Q000517:prevention & control* / Q000523:psychology; D004359:Drug Therapy, Combination; D006339:Heart Rate / Q000187:drug effects; D006801:Humans; D006852:Hydrochlorothiazide / Q000627:therapeutic use; D006973:Hypertension / Q000188:drug therapy* / Q000523:psychology; D008875:Middle Aged; D010551:Personality / Q000187:drug effects*
chemical_list: D006852:Hydrochlorothiazide; D001262:Atenolol; D000584:Amiloride