The Study Of Pulmonary Arterial Compliance After Percutaneous Ventricular Septal Defect Closure Via Transthoracic Echocardiography

Objective To assess the value of use transthoracic echocardiography test pulmonary arterial compliance index (pulmonary arterial compliance index, PACI) to evaluate pulmonary arterial compliance value in ventricular septal defect (VSD) occlusion patients, and the correlation of pulmonary arterial compliance index with age and changes in pulmonary arterial systolic pressure (PASP). Methods Select patients with membranous ventricular septal defect suitable for interventional occlusion therapy, preoperative echocardiography measuring ventricular septal defect diameter, differential pressure across the shunt defect, pulmonary artery systolic pressure, calculated ventricular septal defect area index (ventricular septal defect area index, VSD-AI), pulmonary artery compliance index, three months after operation pulmonary artery systolic pressure was measured, analyzed and compared again. Results The>40-year-old group pulmonary arterial compliance index was significantly lower than other groups, the difference was statistically significant (P<0.05);>40-year-old group of postoperative pulmonary artery systolic pressure higher than other groups, the difference was statistically significant (P<0.05); Three groups of ventricular septal defect area index comparison, the difference was not statistically significant (P>0.05); Postoperative pulmonary systolic pressure≥40mmHg group pulmonary arterial compliance index was lower than other groups, statistically significant difference (P<0.05); Postoperative pulmonary systolic pressure≥40mmHg group ventricular septal defect area index was higher than other groups, statistically significant difference (P<0.05). Conclusion Patients with ventricular septal defect, The restore of pulmonary artery systolic pressure after percutaneous closure has close correlation with the age and the pulmonary arterial compliance index. As a result, in patients with ventricular septal defect pulmonary arterial compliance index can be inferred as the indicator to evaluate the pulmonary arterial pressure recovery degree occlusion after the percutaneous closure.