Abstract:
OBJECTIVES:We sought to determine the efficacy of isradipine in reducing left ventricular (LV) mass and wall thickness in hypertensive patients. BACKGROUND:LV hypertrophy on the echocardiogram is a strong predictor of cardiovascular events. Reduction of LV mass may be a desirable goal of drug therapy for hypertension. However, although thiazide diuretic drugs have been advocated as first-line therapy for hypertension, their efficacy in reducing LV mass has been questioned. METHODS:Patients with mild to moderate diastolic hypertension and LV mass in excess of 1 SD of normal values were randomized to isradipine (n = 89) or hydrochlorothiazide therapy (n = 45). Evaluations were obtained at baseline, after 3 and 6 months of treatment and 2 weeks after treatment was stopped. RESULTS:At 6 months, LV mass decreased by 43 +/- 45 g (mean +/- SD) with hydrochlorothiazide (p < 0.001) but only by 11 +/- 48 g with isradipine (p = NS; between-group comparison, p < 0.001). Two weeks after drug therapy was stopped, LV mass remained 24 +/- 41 g lower than that at baseline in the hydrochlorothiazide group (p = 0.003) but only 7 +/- 50 g lower in the isradipine group (p = NS). Septal and posterior wall thicknesses were significantly and equally reduced with both isradipine and hydrochlorothiazide. Greater LV mass reduction with hydrochlorothiazide was related to a 2.8 +/- 3.3-mm reduction of LV cavity size with hydrochlorothiazide but no reduction with isradipine. At 6 months of treatment, diastolic blood pressure (BP) by design was equally reduced in both treatment groups. At 3 months, systolic BP was reduced by 17 +/- 15 mm Hg with isradipine and by 26 +/- 15 and 25 +/- 17 mm Hg at 3 and 6 months, respectively, with hydrochlorothiazide (p = 0.003, between-group comparison). However, on stepwise multivariable regression analysis, treatment selection (partial r2 = 0.082, p = 0.001), change in average 24-h systolic BP (partial r2 = 0.032, p = 0.029) and change in average sitting systolic BP (partial r2 = 0.017, p = 0.096) were predictive of LV mass reduction. CONCLUSIONS:Despite an equivalent reduction of diastolic BP, 6 months of therapy with hydrochlorothiazide is associated with a substantial reduction of LV mass, greater than that with isradipine. The superior efficacy of hydrochlorothiazide for LV mass reduction is associated with a greater reduction of systolic BP as well as drug selection itself. These data may have important therapeutic implications.
journal_name
J Am Coll Cardioljournal_title
Journal of the American College of Cardiologyauthors
Papademetriou V,Gottdiener JS,Narayan P,Cushman WG,Zachariah PK,Gottdiener PS,Chase GAdoi
10.1016/s0735-1097(97)00311-2subject
Has Abstractpub_date
1997-12-01 00:00:00pages
1802-8issue
7eissn
0735-1097issn
1558-3597pii
S0735109797003112journal_volume
30pub_type
临床试验,杂志文章,多中心研究,随机对照试验abstract::To compare the effects of isolated right ventricular pressure and volume overload on left ventricular diastolic geometry and filling, 11 patients with primary pulmonary hypertension, 11 patients with severe tricuspid regurgitation due to tricuspid valve resection and 11 normal subjects were studied with use of Doppler...
journal_title:Journal of the American College of Cardiology
pub_type: 杂志文章
doi:10.1016/0735-1097(92)90056-s
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abstract:OBJECTIVES:We sought to evaluate whether prolonged exercise in ultramarathon runners results in left ventricular (LV) damage. BACKGROUND:Strenuous exercise has been reported to cause LV damage. METHODS:Fourteen runners who completed an ultramarathon at high altitude underwent echocardiography, finger-tip oximetry and...
journal_title:Journal of the American College of Cardiology
pub_type: 杂志文章
doi:10.1016/s0735-1097(97)00179-4
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更新日期:2012-08-28 00:00:00
abstract::A spectrum of left ventricular diastolic filling abnormalities noted on Doppler echocardiography has been demonstrated in patients with cardiac amyloidosis. To determine how these filling abnormalities evolve over time and the significance of any change, serial pulsed wave Doppler studies of left ventricular inflow we...
journal_title:Journal of the American College of Cardiology
pub_type: 杂志文章
doi:10.1016/0735-1097(90)90545-z
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abstract:OBJECTIVES:We sought to investigate the impact of six months of cardiac resynchronization therapy (CRT) on echocardiographic variables of left ventricular (LV) function. BACKGROUND:Cardiac resynchronization therapy has recently been introduced as a new therapeutic modality in patients with advanced heart failure (HF) ...
journal_title:Journal of the American College of Cardiology
pub_type: 临床试验,杂志文章,随机对照试验
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更新日期:2001-12-01 00:00:00
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journal_title:Journal of the American College of Cardiology
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journal_title:Journal of the American College of Cardiology
pub_type: 杂志文章
doi:10.1016/s0735-1097(97)00306-9
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journal_title:Journal of the American College of Cardiology
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journal_title:Journal of the American College of Cardiology
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journal_title:Journal of the American College of Cardiology
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journal_title:Journal of the American College of Cardiology
pub_type: 杂志文章,多中心研究,随机对照试验
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更新日期:2014-07-29 00:00:00
abstract:OBJECTIVES:The effect of dipyridamole on smooth muscle cell proliferation and prevention of intimal thickening after arterial injury was investigated. BACKGROUND:In addition to antiplatelet activity, dipyridamole also inhibits cell proliferation. We examined whether the antiproliferative action of dipyridamole on smoo...
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journal_title:Journal of the American College of Cardiology
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更新日期:2001-09-01 00:00:00
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journal_title:Journal of the American College of Cardiology
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doi:10.1016/0735-1097(94)90423-5
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journal_title:Journal of the American College of Cardiology
pub_type: 杂志文章,评审
doi:10.1016/0735-1097(95)00548-4
更新日期:1996-03-15 00:00:00
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journal_title:Journal of the American College of Cardiology
pub_type: 杂志文章
doi:10.1016/j.jacc.2007.11.076
更新日期:2008-04-22 00:00:00
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journal_title:Journal of the American College of Cardiology
pub_type: 临床试验,杂志文章,随机对照试验
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journal_title:Journal of the American College of Cardiology
pub_type: 杂志文章
doi:10.1016/j.jacc.2004.04.058
更新日期:2004-09-15 00:00:00
abstract::Although successful operative treatment of atrial focal tachycardia has been reported in children, there are only isolated reports of surgical treatment of this arrhythmia in adults. In this case series of eight patients (aged 10 to 53 years) with drug-resistant right atrial focal tachycardia, results of electrophysio...
journal_title:Journal of the American College of Cardiology
pub_type: 杂志文章
doi:10.1016/s0735-1097(98)90072-9
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journal_title:Journal of the American College of Cardiology
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doi:10.1016/s0735-1097(98)00625-1
更新日期:1999-03-01 00:00:00
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journal_title:Journal of the American College of Cardiology
pub_type: 杂志文章,meta分析
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更新日期:2013-12-24 00:00:00
abstract:BACKGROUND:In the SYNTAX (Synergy Between Percutaneous Coronary Intervention With Taxus and Cardiac Surgery) trial, patients with 3-vessel or left main coronary artery disease (CAD) had improved long-term outcomes with coronary artery bypass graft (CABG) surgery compared with percutaneous coronary intervention (PCI) wi...
journal_title:Journal of the American College of Cardiology
pub_type: 杂志文章,随机对照试验
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更新日期:2017-04-25 00:00:00
abstract:OBJECTIVES:We sought to assess whether high dose estrogen treatment is associated with enhanced arterial reactivity in genetic males. BACKGROUND:Although estrogens have been shown to enhance arterial reactivity in women, and are thereby thought to confer cardiovascular benefit, the vascular effects of long-term estrog...
journal_title:Journal of the American College of Cardiology
pub_type: 杂志文章
doi:10.1016/s0735-1097(97)00063-6
更新日期:1997-06-01 00:00:00
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journal_title:Journal of the American College of Cardiology
pub_type: 杂志文章
doi:10.1016/0735-1097(95)00555-2
更新日期:1996-03-15 00:00:00