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Epidemiology of extrapulmonary tuberculosis among persons with AIDS in the United States
Authors:L Slutsker  KG Castro  JW Ward  SW Dooley
Affiliation:Department of Internal Medicine, Hospital Clinico, School of Medicine, University of Barcelona, Spain.
Abstract:We compared the antihypertensive efficacy of once-daily amlodipine (AM) versus nitrendipine (NTR) by 24-h ambulatory blood pressure monitoring (24-h ABPM) in 32 patients with mild to moderate essential hypertension (EH). After a 2-week single-blind, placebo run-in period, patients were randomized in a double-blind, parallel fashion: 14 received AM 5 mg and 18 NTR 10 mg. After 2 weeks, dose was adjusted if necessary (AM 10 mg or NTR 20 mg) and continued for another 6-week period. At the end of the placebo period and during the last week of treatment, patients underwent 24-h ABPM. Initial office BP mean values were similar in both groups (169.8 +/- 14/102.5 +/- 6 vs. 167.1 +/- 14/98.7 +/- 5 mm Hg, respectively, p = NS). A comparable decrease in office mean values of systolic BP (SBP, -22.3 +/- 13 vs. -19.1 +/- 16 mm Hg) and diastolic BP (DBP, -12.0 +/- 5 vs. -8.1 +/- 8 mm Hg) was observed. Nevertheless, 24-h ABPM mean values differed significantly between patients treated with AM or NTR with regard to 24-h SBP (120.0 +/- 10 vs. 132.5 +/- 1 mm Hg, p = 0.01). Moreover, the average decrease in 24-h SBP (-19.3 +/- 6 vs. -5.2 +/- 11 mm Hg, p = 0.0036) and 24-h DBP (-10.7 +/- 4 vs. -3.7 +/- 6 mm Hg, p = 0.0047) was higher in the AM group, with no changes in 24-h heart rate (HR). At equivalent once-daily dosage, AM was more effective than NTR in decreasing BP assessed by 24-h ABPM.
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