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自1985年4月至1987年4月本院内科心脏病房共收治2岁以下动脉导管未闭心儿43例,其中25例有心衰或肺炎,24例仅有收缩期杂音。全部病例均经 M 型及二维超声心动图诊断,手术证实。仅6例术前需做心导管检查。利用二维超声心动图测定的动脉导管内径与术中测得的导管外径呈线性相关。导管内径、左房内径、左房/主动脉内径比值,左室内径和短轴缩短率有助于判断动脉导管的血液动力学变化,本文说明了检查的方法和注意事项。
From April 1985 to April 1987, 43 cases of patent ductus arteriosus under 2 years of age underwent in our hospital internal medicine cardiology ward, of which 25 cases had heart failure or pneumonia, and 24 cases had only systolic murmur. All cases were diagnosed by M-mode and two-dimensional echocardiography, confirmed by surgery. Only 6 patients had cardiac catheterization before surgery. The diameter of the arterial catheter determined by two-dimensional echocardiography was linearly correlated with the measured catheter diameter during surgery. The diameter of the catheter, the diameter of the left atrium, the ratio of the diameter of the left atrium to the diameter of the aorta, the diameter of the left ventricle and the rate of shortening of the short axis contribute to the determination of the hemodynamic changes in the arterial catheter. This article describes the methods and precautions for the examination.