肺动脉瓣狭窄手术后右心室舒张末压为负：现象及其与容量负荷和圆锥部收缩的关系
Negative right ventricular diastolic pressure after operation for pulmonary valve stenosis: the phenomenon and its relation to volume load and conal contraction.
作者信息
Mohr R, Smolinsky A, Ziskind Z, Quang H T, Goor D A
出版信息
Br Heart J. 1986 Jan;55(1):92-6. doi: 10.1136/hrt.55.1.92.
The phenomenon of negative right ventricular diastolic pressure immediately after operation for relief of isolated pulmonary valve stenosis was investigated in 11 patients. Pressures in the right ventricle and pulmonary artery were measured with a catheter tip micromanometer. One patient had a negative right ventricular diastolic pressure before operation. At the end of operation right ventricular diastolic pressure was negative in all 11 patients. The greater the right ventricular hypertrophy, the lower were these diastolic pressures. Negative right ventricular diastolic pressure is thus common in patients after pulmonary valvotomy, but fluid administration may eliminate it. Negative right ventricular diastolic pressure may be the result of hypercontraction and reduced volume of the hypertrophied right ventricle after relief of right ventricular outflow tract obstruction.
对11例因单纯肺动脉瓣狭窄行手术治疗后立即出现右心室舒张压为负值的现象进行了研究。用导管尖端微测压计测量右心室和肺动脉压力。1例患者术前右心室舒张压为负值。手术结束时，所有11例患者的右心室舒张压均为负值。右心室肥厚越严重，这些舒张压越低。因此，肺动脉瓣切开术后患者右心室舒张压为负值很常见，但补液可能消除这种情况。右心室舒张压为负值可能是右心室流出道梗阻解除后，肥厚的右心室过度收缩和容积减小所致。
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