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1,149 results for

Valsalva Maneuver

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1141. Use of Valsalva's maneuver to detect early recurrence of congestive heart failure in a randomized trial of furosemide withdrawal in older patients. (Abstract)

Use of Valsalva's maneuver to detect early recurrence of congestive heart failure in a randomized trial of furosemide withdrawal in older patients. 10573455 1999 12 07 2013 11 21 0002-8614 47 11 1999 Nov Journal of the American Geriatrics Society J Am Geriatr Soc Use of Valsalva's maneuver to detect early recurrence of congestive heart failure in a randomized trial of furosemide withdrawal in older patients. 1384-5 van Kraaij D J DJ Jansen R W RW Bouwels L H LH Go R I RI Verheugt F W FW (...) Valsalva Maneuver Ventricular Pressure physiology 1999 11 26 1999 11 26 0 1 1999 11 26 0 0 ppublish 10573455

1999 Journal of the American Geriatrics Society Controlled trial quality: uncertain

1142. Reduced time for femoral venipuncture by simple bedside application of Valsalva maneuver (the poor cardiologist's smart needle). (Abstract)

Reduced time for femoral venipuncture by simple bedside application of Valsalva maneuver (the poor cardiologist's smart needle). 8184843 1994 06 16 2004 11 17 0002-9149 73 13 1994 May 15 The American journal of cardiology Am. J. Cardiol. Reduced time for femoral venipuncture by simple bedside application of Valsalva maneuver (the poor cardiologist's smart needle). 1023-4 Bombardini T T Istituto di Fisiologia Clinica, CNR, Pisa, Italy. Picano E E Magagnini E E eng Clinical Trial Journal Article (...) Randomized Controlled Trial United States Am J Cardiol 0207277 0002-9149 AIM IM Adult Aged Bloodletting methods Catheterization methods Femoral Vein Humans Male Middle Aged Valsalva Maneuver 1994 5 15 1994 5 15 0 1 1994 5 15 0 0 ppublish 8184843 0002-9149(94)90165-1

1994 The American journal of cardiology Controlled trial quality: uncertain

1143. A noninvasive evaluation of baroreceptor sensitivity with the Valsalva maneuver and phenylephrine methods. (Abstract)

A noninvasive evaluation of baroreceptor sensitivity with the Valsalva maneuver and phenylephrine methods. In a double-blind crossover study, we compared baroreceptor sensitivity (BS) and latency, derived from the phenylephrine method with BS and latency derived from phase IV of the Valsalva maneuver (VM), using the Finapres, a noninvasive blood pressure monitor. Ten healthy volunteers were enrolled in the study and BS was determined with placebo, atropine (0.03 mg/kg) and atenolol (10 mg (...) by the Valsalva maneuver with placebo and atropine, but not with atenolol, suggests a parasympathetically influenced vasodilation, and sympathetically medicated tachycardia during phase IV of the VM.

1996 Methods and findings in experimental and clinical pharmacology Controlled trial quality: uncertain

1144. Effects of hypovolemia and posture on responses to the Valsalva maneuver. (Abstract)

Effects of hypovolemia and posture on responses to the Valsalva maneuver. We tested the hypotheses that hypovolemia would result in attenuated elevation in blood pressure, greater baroreflex-mediated tachycardia, and reduced capacity for vasoconstriction during a Valsalva maneuver (VM).Heart rate (HR) and mean arterial pressure (MAP) were measured beat-by-beat before strain, during a 15-s VM strain at 30 mmHg expiratory pressure, and post-strain. Eight subjects performed three VM trials in each (...) ), but not by circulating blood volume. Therefore, our results did not support our hypothesis that hypovolemia would result in attenuated elevation in blood pressure, greater baroreflex-mediated tachycardia, and reduced capacity for vasoconstriction during a Valsalva maneuver. However, moderate hypovolemia can be specifically predicted by the phase I response to a VM performed in the standing posture.

1996 Aviation, space, and environmental medicine Controlled trial quality: uncertain

1145. Comparison of treatment of supraventricular tachycardia by Valsalva maneuver and carotid sinus massage. (Abstract)

Comparison of treatment of supraventricular tachycardia by Valsalva maneuver and carotid sinus massage. To compare the efficacy of the Valsalva maneuver with that of carotid sinus massage (CSM) in terminating paroxysmal supraventricular tachycardia (SVT) in the ED.This prospective, randomized case study was performed in the ED of a tertiary care institution. Patients were at least 10 years of age with regular narrow complex tachycardia and had an ECG diagnosis of SVT. Patients with regular (...) narrow complex tachycardia were randomly assigned to undergo either the Valsalva maneuver or CSM. If the tachycardia was not terminated by the method chosen by randomization, then the alternative method of vagal maneuver was used. If the tachycardia was not converted by both methods of vagal stimulation, patients would undergo either synchronized electrical cardioversion or a pharmacologic method of conversion at the discretion of the treating physician, depending on the patient's hemodynamic

1998 Annals of Emergency Medicine Controlled trial quality: uncertain

1146. Effects of repeated Valsalva maneuver straining on cardiac and vasoconstrictive baroreflex responses. (Abstract)

Effects of repeated Valsalva maneuver straining on cardiac and vasoconstrictive baroreflex responses. We hypothesized that repeated respiratory straining maneuvers (repeated SM) designed to elevate arterial BPs (arterial baroreceptor loading) would acutely increase baroreflex responses.We tested this hypothesis by measuring cardiac baroreflex responses to carotid baroreceptor stimulation (neck pressures), and changes in heart rate and diastolic BP after reductions in BP induced by a 15-s (...) Valsalva maneuver in 10 female and 10 male subjects at 1, 3, 6, and 24 h after performing repeated SM. Baroreflex responses were also measured in each subject at 1, 3, 6, and 24 h at the same time on a separate day without repeated SM (control) in a randomized, counter-balanced cross-over experimental design.There was no statistical difference in carotid-cardiac and peripheral vascular baroreflex responses measured across time following repeated SM compared with the control condition. Integrated

2003 Aviation, space, and environmental medicine

1147. Lack of accentuation by the Valsalva maneuver of the murmur of idiopathic hypertrophic subaortic stenosis: importance of monitoring the pulse. Full Text available with Trip Pro

Lack of accentuation by the Valsalva maneuver of the murmur of idiopathic hypertrophic subaortic stenosis: importance of monitoring the pulse. 7199371 1982 05 12 2018 11 13 0008-4409 126 1 1982 Jan 01 Canadian Medical Association journal Can Med Assoc J Lack of accentuation by the Valsalva maneuver of the murmur of idiopathic hypertrophic subaortic stenosis: importance of monitoring the pulse. 48-50 LeJemtel T H TH Ribner H S HS Strom J A JA Jordan A A Sonnenblick E H EH eng HL 07071-03 HL (...) NHLBI NIH HHS United States Case Reports Journal Article Research Support, U.S. Gov't, P.H.S. Canada Can Med Assoc J 0414110 0008-4409 AIM IM Cardiomyopathy, Hypertrophic diagnosis physiopathology Electrocardiography Female Heart Auscultation Heart Murmurs Humans Middle Aged Phonocardiography Pulse Valsalva Maneuver 1982 1 1 1982 1 1 0 1 1982 1 1 0 0 ppublish 7199371 PMC1862801 Am J Med. 1965 Dec;39(6):923-33 5853043 Am J Cardiol. 1976 Jan;37(1):89-92 942679 Circulation. 1964 Mar;29:422-31 14128830

1982 Canadian Medical Association Journal

1148. [Cardiac sympathetic dysfunction in Parkinson's disease--relationship between results of 123I-MIBG scintigraphy and autonomic nervous function evaluated by the Valsalva maneuver]. (Abstract)

[Cardiac sympathetic dysfunction in Parkinson's disease--relationship between results of 123I-MIBG scintigraphy and autonomic nervous function evaluated by the Valsalva maneuver]. We examined whether the results of 123I-MIBG scintigraphy reflect cardiac sympathetic nerve function in patients with Parkinson's disease (PD). The subjects were 62 patients with Parkinson's disease (age, 65.4 +/- 6.3 years) and 53 controls (65.2 +/- 7.1 years). All subjects underwent 123I-MIBG scintigraphy and QTc (...) interval measurement on ECG. Hemodynamic autonomic function was estimated by the Valsalva maneuver in 37 subjects (63.9 +/- 5.2 years) randomly selected from the patients with PD. As control, the Valsalva maneuver was also done in 20 randomly selected controls (64.1 +/- 5.0 years), and 123I-MIBG scintigraphy was performed in 21 controls (67.7 +/- 5.3 years old). The subjects rested in a supine position for 20 min and were given an intravenous injection of 111 MBq 123I-MIBG. Relative organ uptake

2003 Rinshō shinkeigaku = Clinical neurology Controlled trial quality: uncertain

1149. Contrast transcranial Doppler ultrasound in the detection of right-to-left shunts: comparison of Echovist-200 and Echovist-300, timing of the Valsalva maneuver, and general recommendations for the performance of the test. (Abstract)

Contrast transcranial Doppler ultrasound in the detection of right-to-left shunts: comparison of Echovist-200 and Echovist-300, timing of the Valsalva maneuver, and general recommendations for the performance of the test. Cardiac right-to-left shunts (RLS) can be identified by transesophageal echocardiography (TEE) as well as by transcranial Doppler ultrasound (TCD) using contrast agents, such as Echovist-200 or Echovist-300 in conjunction with a Valsalva maneuver (VM) as provocation procedure

2002 Cerebrovascular diseases (Basel, Switzerland) Controlled trial quality: uncertain

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