The failure of the blood pressure to fall during the late strain phase of the Valsalva maneuver in patients with heart failure may result from the left ventricle operating on a flat portion of its function curve or from maintenance of left ventricular volume despite decreased systemic venous return. To test these possibilities, we studied the effect of the Valsalva maneuver (40 cm H20 for 15 se...

UNLABELLED The effects of Epley's maneuver in benign paroxysmal positional vertigo (BPPV) associated with Menière's disease are controversial. AIMS To evaluate the progression of positional vertigo and nystagmus after one or more of Epley's maneuvers in BPPV associated with Menière's disease, and the recurrence of BPPV. METHOD a retrospective study of 62 patients with BPPV associated with M...

Introduction The use of vagal nerve stimulation is identified as a proper treatment option in patients with stable supraventricular tachycardia (SVT). This study aimed to assess the success of Valsalva maneuver via a handmade device in reversion of SVT. Methods In this quasi experimental study, using a handmade device, vagus nerve stimulation was performed for SVT patients presenting to emerg...

UNLABELLED The effectiveness of postmaneuver postural restrictions is controversial in patients with benign paroxysmal positional vertigo. AIM To verify the role of postural restrictions in patients with benign paroxysmal positional vertigo of posterior canal, submitted to a single Epley maneuver. STUDY DESIGN clinical prospective. MATERIAL AND METHOD Fifty eight patients with benign paro...

OBJECTIVE This study investigated the acute hemodynamic responses to multiple sets of passive stretching exercises performed with and without the Valsalva maneuver. METHODS Fifteen healthy men aged 21 to 29 years with poor flexibility performed stretching protocols comprising 10 sets of maximal passive unilateral hip flexion, sustained for 30 seconds with equal intervals between sets. Protoco...

This study was performed to compare continuous Finapres (FIN) and intrabrachial (IAP) blood pressure in healthy elderly volunteers. Fifteen elderly subjects (age 71 to 83) without cardiovascular disease and an intraarterial mean (range) systolic and diastolic blood pressure of 162 (122 to 195) and 73 (62 to 88) mm Hg, respectively, participated in the study. A 10-min head-up tilt, 10 min active...

Neurology 2012;78:154–156 Benign paroxysmal positional vertigo (BPPV) presentations are one of the unique opportunities in medicine when the care rendered can result in substantial benefit with extremely low risk for harm. Disabling symptoms are cured in minutes by moving the otolithic debris out of the semicircular canal, and the maneuvers to do this carry no more risk than that of lying down ...

The aim of the present research was to analyze autonomic stress response nursing students in a Objective Structured Clinical Evaluation (OSCE). We analyzed, 41 s-year degree (20.1 ± 2.3 years), modifications heart rate variability (HRV) monitor before, during and after 18 different scenarios complete OSCE. Heart mean nurse consistent with an anticipatory anxiety at beginning OSCE, showing sympa...

This paper presents research on the application of trajectory design, optimization, and control to an orbital transfer from Mars–Phobos Distant Retrograde Orbits surface Phobos. Given a Orbit landing location Phobos, trajectories for which total Δv direct 2-burn maneuver is minimized are computed. accomplished through use Particle Swarm Optimization in required time flight optimization paramete...