maneuvers,valsalva 《英文msh词典》Maneuvers,Valsalva ; [入口词] Maneuvers,Valsalva ; [主题词] Valsalva Maneuver ; [英文释义] Forced expiratory effort against a closed GLOTTIS. It is used to study cardiovascular effects of increased peripheral VENOUS PRESSURE and decreased cardiac filling and output.