Valsalva maneuver: shortest optimal expiratory strain duration

• Autori principali: Ramesh K. Khurana, Md (Autore), Deepika Mittal, Md (Autore), Norman H. Dubin, Ph.D (Autore)
• Natura: Libro
• Pubblicazione: Greater Baltimore Medical Center, 2011-07-01T00:00:00Z.
• Soggetti: article
• Accesso online: Connect to this object online.

Purpose : To quantitate the level of difficulty and determine consistency of hemodynamic responses with various expiratory strain (ES) durations. Methods : Thirty-four healthy subjects performed the Valsalva maneuver (VM) with an ES duration of 10, 12, and 15 seconds in random order. Level of diffic...