Young investigators' awardA simple test of cardiac function based upon the heart rate changes induced by the valsalva maneuver☆
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Cited by (287)
Valsalva-derived Measures and Phenylephrine Test in Patients With Heart Failure With Reduced Ejection Fraction Receiving Comprehensive Neurohormonal Blockade Drug Therapy: A 5-year Event-free Survival Analysis
2022, Journal of Cardiac FailureCitation Excerpt :The lowest SBP immediately after the release of strain is considered as the end of phase III and the beginning of phase IV, usually22,36 (Fig. 1). Because the arterial baroreflex is the primary contributor to the tachycardia and peripheral vasoconstriction observed during the late phase II (baroreceptor unloading) and the reflexive bradycardia observed during the overshoot (baroreceptor stimulation), the Valsalva maneuver has been adopted as the method for cBRS evaluation, and various assessment approaches have been proposed,22,36 including classification into present/absent overshoot,11,36 comparing the cardiac responses between phases II vs IV (cBRSVR),37 and relating decrease in pulse pressure during Valsalva to increase in diastolic pressure after Valsalva38 (see ref.22 for an overview). Furthermore, an abnormal response to the Valsalva test (an increase in the arterial and pulse pressure in phase II and loss of arterial pressure overshoot in phase IV) is commonly found in congestive HF and results from increased pulmonary blood volume that serves as a reservoir and prevents decrease in stroke volume during the expiratory strain, despite decreased venous return.36
Influence of repetitions on the Valsalva maneuver
2020, Clinical Neurophysiology PracticeCitation Excerpt :Adverse effects are extremely rare and include dizziness, headache, nausea, blurred vision, chest pain, syncope, hypotension or severe hypertension, arrhythmias or stroke (Pstras et al., 2016). These secondary effects are limited to high risk population, that is, patients with coronary or cerebrovascular disease (Junqueira, 2008; Levin, 1966). Deviations in blood pressure and heart rate responses from the normal pattern are analyzed according to four well-differentiated phases (I-IV) (Hamilton et al., 1936).
Neurophysiological evaluation of the autonomic nervous system
2018, Neurophysiologie-LaborCardiovascular autonomic nervous function in children conceived by assisted reproductive technology with frozen or fresh embryo transfer
2024, American Journal of Physiology - Heart and Circulatory PhysiologyResearch Progress of High Frequency Electrocardiography
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This work was completed during the tenure of Postdoctoral Research Fellowship 1-F2-HE-22, 530-01, National Heart Institute, U.S. Public Health Service.
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Present address: Department of Medicine, Beth Israel Hospital, Boston, Mass. Winner of third place in the Young Investigators' Awards competition on February 5, 1966, at the Annual Meeting of the American College of Cardiology in Chicago.