Characteristics of Ventricular Function in Pulmonary Hypertension Patients with Different Shape of Interventricular Septum: Preliminary Study with Cardiac Magnetic Resonance Imaging / 中国肺癌杂志

ABSTRACT

BACKGROUND@#To study the characteristics of ventricular function in Pulmonary Hypertension (PH) Patients with different shape of Interventricular Septum (IVS) by cardiac magnetic resonance (CMR).@*METHODS@#36 PH patients diagnosed by right heart catheterization accepted CMR. According to the morphology of IVS, the patients were divided into two groups the non-deformation group (10 patients) and the deformation group (26 patients). The ventricular function parameters were as follows RV and LV end-diastolic volume index (EDVI), end-systolic volume index (ESVI), stroke volume index (SVI), cardiac index (CI), ejection fraction (EF), and myocardial mass index (MMI).@*RESULTS@#ANOVA analysis showed that the differences of RVEDVI, RVESVI, RVSVI, RVCI, RVEF, RVMMI, LVEDVI, LVESVI, LVSVI and LVCI were significant among the three groups. Compared with control group, RVSVI (P=0.017), RVEF (P<0.001), LVEDVI (P=0.048) and LVSVI (P=0.015) decreased in IVS non-deformation group. Compared with IVS non-deformation group, RVEDVI (P<0.001), RVESVI (P<0.001), RVCI (P=0.002) and RVMMI (P=0.017) were increased in IVS deformation group; while RVEF (P=0.001), LVEDVI (P=0.003), LVSVI (P<0.001) and LVCI (P=0.029) were decreased. Compared with the control group, RVEDVI (P<0.001), RVESVI (P<0.001), RVCI (P=0.004) and RVMMI (P=0.003) were increased in the IVS deformation group, while RVEF (P<0.001), LVEDVI (P<0.001), LVESVI (P<0.001), LVSVI (P<0.001), LVCI (P<0.001) were decreased.@*CONCLUSIONS@#Ventricular function is different in PH Patients with different IVS shape. The IVS shape can represent the changes of ventricular function in PH patients.