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人们对法乐氏四联症(TOF)肥厚的右心室肌纤维收缩特性认识甚少,本文将探讨TOF不同状态时心室的收缩功能。 资料与方法 一、一般资料 随机选择右心导管术中有室性早搏的TOF27例,年龄6～14岁,男15例,女12例;同时选择20例作为对照组,年龄6～12岁,男11例,女9例。 二、方法 (1)右心导管术:按操作常规进行;(2)同步描记常态和室性早搏的压力曲线和心电图,并经数字化仪转化成压力变化率(dp/dt),输入计算机;(3)计算出下列参数:右室峰压(Pmax)、右室内
Little is known about the contractile properties of right ventricular myofibers in tetralogy of Fallot (TOF) hypertrophy. In this paper, the ventricular systolic function in different states of TOF will be explored. Materials and Methods First, the general information Randomly selected right ventricular catheterization in patients with premature ventricular contractions TOF27 cases, aged 6 to 14 years old, 15 males and 12 females; also selected 20 cases as control group, aged 6 to 12 years, There were 11 males and 9 females. Second, the method (1) right heart catheterization: according to the routine operation; (2) synchronous tracing of normal and ventricular premature beats pressure curve and ECG, and the digitizer into pressure change rate (dp / dt), enter the computer; 3) Calculate the following parameters: Peak right ventricular pressure (Pmax), right ventricle