BACKGROUND When performing the Valsalva maneuver (VM), adults and preadolescents produce the same expiratory resistance values. OBJECTIVE To analyze heart rate (HR) in preadolescents performing VM, and propose a new method for selecting expiratory resistance. METHOD The maximal expiratory pressure (MEP) was measured in 45 sedentary children aged 9-12 years who subsequently performed VM for ...

background: sellick's maneuver (cricoid pressure) may make laryngoscopic view and tracheal intubation more difficult. this study compared the different techniques of cricoid pressure (cp) regarding to the laryngoscopic view and time to intubation. methods: in142 anesthetized patients, 4 types of cp was randomly applied; a) one-handed cp using thumb, index and middle fingers, b) one-handed cp us...

ABSTRACT Objective to map the production of knowledge about different techniques gastrointestinal tube insertion in critically ill and/or coma patients. Method scope review carried out December 2020 ten data sources, following assumptions established by Joanna Briggs Institute (2020) and PRISMA-ScR protocol. Results 25 studies were selected analyzed, identifying as main for patients: without ai...

Near-minimum-time control of flexible manipulators can be accomplished by designing a controller that tracks a reference maneuver. The control method presented here uses a near-minimum-time rigid-link reference maneuver to generate reference control torques and a Liapunov controller to make the flexible manipulator track the reference maneuver while reducing and eventually eliminating flexible ...

Junqueira LF Jr. Teaching cardiac autonomic function dynamics employing the Valsalva (Valsalva-Weber) maneuver. Adv Physiol Educ 32: 100–106, 2008; doi:10.1152/advan.00057.2007.—In this report, a brief history of the Valsalva (Valsalva-Weber) maneuver is outlined, followed by an explanation on the use of this approach for the evaluation of cardiac autonomic function based on underlying heart ra...

Nine patients with recurrent ventricular tachycardia (VT) that could be repeatedly terminated by a Valsalva maneuver are described. In two, the tachycardia would cease for only a few seconds and then resume, whereas in seven, the tachycardia could be permanently and reproducibly terminated with a Valsalva maneuver. In all patients the tachycardia ended during the strain phase of the Valsalva ma...

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OBJECTIVES To assess the efficacy of the Semont maneuver in the treatment of benign paroxysmal positional vertigo (BPPV) of the posterior semicircular canal and to evaluate the possible effect of various factors on the efficacy of this maneuver. DESIGN AND SETTING Retrospective study in an outpatient clinic. PATIENTS Two hundred seventy-eight patients presenting with symptomatic, unilateral...