Treatment of isolated systolic hypertension with labetalol in the elderly.
Antihypertensive therapy with labetalol was evaluated in a prospective, randomized, multicenter, double-blind study of 133 elderly patients with isolated systolic hypertension (standing systolic blood pressure [BP] greater than or equal to 160 mm Hg; diastolic BP less than 95 mm Hg). Following a placebo-washout period, patients received either labetalol (n = 70) or placebo (n = 63), which was titrated as necessary from 100 to 400 mg twice a day over a 6-week period. Once the BP was controlled (standing systolic BP less than 160 mm Hg, and greater than or equal to 10-mm Hg decrease from baseline) or the maximum dosage had been given, patients continued receiving the same regimen until the end of the titration period and throughout a 4-week maintenance period. Blood pressure was controlled in 57 (81%) of 70 of the labetalol-treated patients (86% receiving less than or equal to 200 mg twice a day) compared with 34 (54%) of 63 of the placebo-treated patients. Throughout the active treatment periods, BP was significantly lower in patients treated with labetalol compared with those taking placebo; mean standing systolic BP decreased 26 mm Hg in the labetalol group vs 9 mm Hg in the placebo group. Side effects were generally mild, and the dropout rates due to adverse experiences were similar between treatment groups (14% in the labetalol group vs 10% in the placebo group). In summary, labetalol can effectively lower systolic BP in the elderly without causing adverse orthostatic changes.
Cardiovascular Research Laboratory, Tulane University School of Medicine, New Orleans, La.
T D
TD
Giles
M
M
Weber
D W
DW
Bartels
H M
HM
Silberman
L P
LP
Gilderman
J F
JF
Burris
D000367:Age Factors; D000368:Aged; D004311:Double-Blind Method; D006801:Humans; D006973:Hypertension / Q000188:drug therapy*; D007741:Labetalol / Q000008:administration & dosage / Q000627:therapeutic use*; D008297:Male; D008875:Middle Aged; D015337:Multicenter Studies as Topic; D011446:Prospective Studies; D016032:Randomized Controlled Trials as Topic; D013599:Systole; D013997:Time Factors
D007741:Labetalol