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临床上各种原因导致的左、右心功能失代偿极为常见。左室失代偿的最初血液改变是因其舒张终末压上升引起的左心前负荷一左房、肺静脉的容量上升;右心室功能则可表现为右心收缩间期及泵血力量的改变而作用于肺动脉波。可见心功能失代偿,首先或主要是表现为小循环方面的变化。“小循环心功能”目前采用右胸电阻抗或导纳图法,其电场范围内,除含少量胸
Various clinical causes of left and right ventricular decompensation is extremely common. Left ventricular decompensated initial blood change is due to increased left ventricular end diastolic pressure caused by a left atrium, pulmonary venous capacity increased; right ventricular function can be expressed as the right ventricular systolic and pump power changes And the role of pulmonary artery wave. Visible cardiac decompensation, first or mainly manifested as small changes in circulation. “Small circulation cardiac function” is currently using right thoracic impedance or admittance map method, the electric field range, with a small amount of chest