Abnormal responses to a standardized Valsalva maneuver have been proposed as additional Criteria for heart failure. The present study was undertaken to determine the variability of these responses in normal subjects as well as frequency of abnormal responses in cardiac patients. Only phase II responses could be considered reliable for this purpose. Discrepancies between phase II responses were ...

The Valsalva maneuver is frequently used to test autonomic function. Previous work demonstrated that the blood pressure decrease during the Valsalva maneuver relates to thoracic hypovolemia, which may preclude pressure recovery during phase II, even with normal resting peripheral vasoconstriction. We hypothesized that increased regional blood volume, specifically splanchnic hypervolemia, accoun...

The use of nasopharyngoscopy during the application of intrathoracic pressure (Müller maneuver) is frequently employed to establish the site of upper airway obstruction. The Müller maneuver, however, is used when the patient is awake and therefore may not correlate with obstruction occurring during sleep. Aim: to compare the degree of pharyngeal obstruction in the retropalatal and retroglossal ...

Applying manual uterine fundal pressure is a maneuver performed to shorten the second stage of labor. This maneuver involves the application of manual pressure to the uppermost part of the uterus (uterine fundus) and directed towards the uterine axis. How often this maneuver is performed in routine obstetric practice is unclear; however, it is much more frequently performed in developing than d...