Avanzini F, Alli C, Corsetti A, Colombo F, Tognoni G for the STAR Study Group
Appropriate antihypertensive therapy in current practice. Results of a feasibility study
12th Annual ASH Meeting
Am J Hypertens (Apr) 10:141A 1997

This study was designed to assess the feasibility of using clinical guidelines to improve blood pressure (BP) control while using less expensive drugs with documented preventive efficacy (i.e., diuretics and beta-blockers).  

Forty-eight physicians agreed to test these guidelines in their daily practice.  1130 hypertensive patients (H) were studied (62% F, mean age 64 ± 12 y, range 26-94 y).  At study onset 93% were treated with antihypertensive drugs (48% with diuretics, 22% with beta-blockers, 37% with calcium antagonists, 53% with ACE inhibitors, 3% with alpha-blockers and 4% with other drugs). Systolic BP was < 140 mmHg and diastolic BP < 90 mmHg in only 23% and 62% respectively and 11% of patients did not tolerate their drug regimen.  

During the 12-month study period 26 patients (2%) died, 31 (3%) dropped out and 1073 (95%) completed the study. During this period there was: a) an increase in diuretic and beta-blocker use (from 48 to 57% and from 22 to 31%) and better control of both systolic BP (< 140 mmHg from 23 to 41%) and diastolic BP (< 90 mmHg from 62 to 87%).  Drug tolerance also was noted to improve.  Although the mean number of antihypertensive drugs per patient rose slightly (from 1.67 to 1.70), the mean cost decreased by 9%. These data suggest that use of antihypertensive drug guidelines can improve the efficacy, safety and costs of therapy.

Comment: This is a non-randomized feasibility study which suggests that antihypertensive drug guidelines that favor the use of diuretics and beta-blockers can improve efficacy and safety decrease cost.  It is clear that diuretics and beta-blockers have time-tested efficacy and are inexpensive.  However, I am personally skeptical whether patients will tolerate diuretic and beta-blocker regimens better (or even as well) than regimens employing newer agents.  For instance, several quality of life studies including the landmark captopril study (Croog SH, et al. N Engl J Med 1986; 314: 1657) have indicated that beta- blockers are less well tolerated than newer agents.   (David J. Leehey, M.D., Loyola University at Chicago)

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12th Annual ASH Meeting
H: Drug therapy : Compliance
H: Drug therapy : Multiple drugs, synergy