SYSTOLIC-TIME INTERVALS AND THEIR DERIVATIVES FOR EVALUATION OF CARDIAC-FUNCTION

被引:46
作者
ATKINS, CE
SNYDER, PS
机构
[1] Department of Companion Animal and Special Species Medicine, College of Veterinary Medicine, North Carolina State University, Raleigh, North Carolina
关键词
D O I
10.1111/j.1939-1676.1992.tb03152.x
中图分类号
S85 [动物医学(兽医学)];
学科分类号
0906 ;
摘要
Systolic time intervals provide a noninvasive indication of global left ventricular performance, are relatively sensitive, and are easily obtained from an M-mode echocardiogram. This paper defines systolic time intervals (preejection period, left ventricular ejection time, and total electromechanical systole) and their derivatives (preejection period/left ventricular ejection time and velocity of circumferential fiber shortening). Their utility and weaknesses, as well as the effects of heart rate, loading conditions, cardiac contractility, and drug therapies on systolic time intervals are discussed. Normal values for systolic time intervals for the dog and cat are provided.
引用
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页码:55 / 63
页数:9
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共 58 条
[1]  
Hassan S., Turner P., Systolic time intervals: A review of the method in the non‐invasive investigation of cardiac function in health, disease and clinical pharmacology, Postgrad Med J, 59, pp. 423-434, (1983)
[2]  
Wiggers CJ, Studies on the consecutive phases of the cardiac cycle an criteria for their precise determination, Am J Physiol, 5, pp. 415-428, (1921)
[3]  
Weissler AM, Peeler RG, Roehll WH, Relationships between left ventricular ejection time, stroke volume and heart rate in normal individuals and patients with cardiovascular disease, Am Heart J, 62, pp. 367-378, (1961)
[4]  
Weissler AM, Current concepts in cardiology
[5]  
Systolic‐time inter‐vals, N Engl J Med, 296, pp. 321-324, (1977)
[6]  
Stefadouros MA, Witham AC, Systolic time intervals by echocardiography, Circulation, 51, pp. 114-117, (1975)
[7]  
Pipers FS, Andrysco RM, Hamlin RL, A totally noninvasive method for obtaining systolic time intervals in the dog, Am J Vet Res, 39, pp. 1822-1826, (1978)
[8]  
Fox PR, Bond BR, Peterson ME, Echocardiographic reference values in healthy cats sedated with ketamine hydrochloride, Am J Vet Res, 46, pp. 1479-1484, (1985)
[9]  
Weissler AM, Harris WS, Schoenfeld CD, Et al., Bedside techniques for the evaluation of ventricular function in man, Am J Cardiol, 23, pp. 577-583, (1969)
[10]  
Oyen EM, Ingerfeld G., Ignatzy K., Et al., Dynamic exercise echocardiography in children with congenital heart disease affecting the left heart, Int J Cardiol, 17, pp. 315-325, (1987)