Finding

Comment/significance

检查结果

评论/临床意义

Abnormalities in timing

计时异常

Fixed splitting

固定分裂

Acute right-heart overload (e.g., pulmonary embolism)急性右心脏过载（如肺栓塞)

Right bundle branch block右束支传导阻滞

Atrial septal defect (often widely split)房间隔缺损（经常大幅分裂)医学 全在.线提供www.med126.com

Pulmonic stenosis肺动脉瓣狭窄

Paradoxical splitting

逆分裂

Aortic stenosis主动脉瓣狭窄

Left bundle branch block左束支传导阻滞

Closely split with closure at midinspiration (variant of paradoxical splitting) 紧密分裂伴吸气中期关闭（逆分裂变种)

Coronary artery disease冠状动脉疾病

Hypertension高血压

Abnormalities in intensity

强度异常

Increased A2

A2增加

Hypertension高血压

Aortic dilatation主动脉扩张

Increased P2

P2增加

Pulmonary hypertension肺动脉高血压

Normal finding in thin-chested individual薄胸个体为正常现象

Decreased A2 A2降低

Aortic stenosis主动脉瓣狭窄

Decreased P2 P2降低

Pulmonic stenosis肺动脉瓣狭窄