Sang Hyun Lee

Nurse-led preprocedural Valsalva maneuver training with a maximal expiratory pressure device during transesophageal echocardiography in South Korea: a quasi-experimental study

Purpose: This study examined the effects of preprocedural Valsalva maneuver (VM) training using a maximal expiratory pressure (MEP) device on VM performance and patient discomfort during transesophageal echocardiography (TEE).Methods: This study used a time-lagged, posttest-only,...