Effect of gender and left ventricular dysfunction on the incidence of hypotension induced of dobutamine stress echocardiography

被引:10
作者
Khanal, S [1 ]
Daggubati, RB [1 ]
Pai, RG [1 ]
机构
[1] Vet Affairs Med Ctr, Cardiol Sect, Loma Linda, CA USA
关键词
D O I
10.1016/S0894-7317(98)80008-4
中图分类号
R5 [内科学];
学科分类号
1002 ; 100201 ;
摘要
Background: Of patients who undergo dobutamine stress echocardiography (DSE), 14% to 38% experience hypotension that sometimes requires termination of the test before an adequate cardiac workload is reached. The mechanisms of hypotension reportedly are related to peripheral vasodilation, a decrease in cardiac output, and left ventricular (LV) cavity obliteration. DSE is performed increasingly in women and in patients with LV dysfunction. However, the impact of gender and LV dysfunction on DSE-induced hypotension has not been elucidated. Methods and Results: Clinical, hemodynamic, and echocardiographic characteristics were studied in 412 patients undergoing DSE, 82 patients with an LV ejection fraction of 40% or less, and 147 women. Hypotension, defmed as a decrease in systolic blood pressure of at least 20 mm Hg, occurred in 117 (28%) patients. Hypotension was more common in women than men (36% vs 24%, p = .01), Hypotension was also more common in older adults (P = .004), persons taking diuretics (P = .025) or angiotensin-converting enzyme inhibitors (P = .01), and persons with higher baseline blood pressures (P < .0001), Hypotension was not related to the use of beta blockers, calcium channel blockers,; digoxin, nitrates, LV dimensions, or ejection fraction. Conclusions: The incidence of DSE-induced hypotension is related to gender but not to the level of LV systolic function. It also is associated significantly with higher age, and use of angiotensin-converting enzyme inhibitors or diuretics.
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页码:1134 / 1138
页数:5
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