三凹征

结果4例ACPE患者的CVP下降至1~4cmH2O，其特点是出现明显的呼吸增强、增快，表现为呼吸频率35次/min、三凹征和呼吸性碱中毒。

Results 4 ACPE patients had decreased CVP from 1 to ( 4 cm ) H_2O . All of these four subjects had compensative respiration reinforcement . The respiration rates were all above 35 times per minute with three depressions sign and respiratory alkalosis .

三凹征与肺原性心脏病急性发作期左心功能的关系

Relationship between tri-retraction sign and left cardiac function in acute episode of cor pulmonale

结果：治疗组咳嗽、气喘、三凹征和肺部罗音消失时间，均较对照组明显缩短（P<0.05），但两组住院天数无明显差别（P>0.05）。

Results : The recovery time of clinical cough , wheezing and lung signs were obviously shortened in the treatment group compared with the control group ( P < 0.05 ) . No significant difference of hospitalization days was found in two groups ( P > 0.05 ) .