The RV myocardium releases cardiac troponin as a result of microinfarction due to pressure overload while cardiac myocytes increase secretion of BNP in response to RV shear stress.

• 由于RV压力过大，RV心肌释放心肌肌钙蛋白，同时由于RV切应力的增加，心肌细胞分泌BNP也增多。