Harry A Silber
Affiliation: Johns Hopkins University
- Finger photoplethysmography during the Valsalva maneuver reflects left ventricular filling pressureHarry A Silber
Division of Cardiology, Department of Medicine, Johns Hopkins University School of Medicine, Baltimore, MD, USA
Am J Physiol Heart Circ Physiol 302:H2043-7. 2012....
- Why is flow-mediated dilation dependent on arterial size? Assessment of the shear stimulus using phase-contrast magnetic resonance imagingHarry A Silber
Division of Cardiology, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
Am J Physiol Heart Circ Physiol 288:H822-8. 2005..Evaluating the shear stimulus using phase-contrast magnetic resonance imaging enhances the understanding of mechanisms underlying FMD...
- A novel method for assessing arterial endothelial function using phase contrast magnetic resonance imaging: vasoconstriction during reduced shearHarry A Silber
Division of Cardiology, Department of Medicine, Johns Hopkins University, School of Medicine, Baltimore, Maryland, USA
J Cardiovasc Magn Reson 7:615-21. 2005..52 +/- .41 to 3.43 +/- .42 mm, p < .0001). In conclusion, arterial constriction during reduced flow can be measured using PCMRI. This new method may add important information toward a comprehensive evaluation of endothelial function...
- A rapid hemodynamic monitor of acute ischemia during cardiac procedures: changes in relaxation via a continuous left ventricular pressure-derivative loopHarry A Silber
Department of Surgery, Louisiana State University Medical Center, and Department of Surgery, Tulane University, New Orleans, Louisiana, USA
J Surg Res 134:107-13. 2006..This study investigated the utility of a continuous loop tracing of left ventricular pressure (LVP) plotted against its derivative (dP/dt) as a visual beat-to-beat monitor of acute changes in myocardial relaxation due to global ischemia...
- Arterial reactivity in lower extremities is progressively reduced as cardiovascular risk factors increase: comparison with upper extremities using magnetic resonance imagingHarry A Silber
Department of Medicine, Division of Cardiology, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
J Am Coll Cardiol 49:939-45. 2007..Our goal was to investigate whether the association between established cardiovascular risk factors and arterial reactivity differs between the lower and upper extremities...
- Exaggerated exercise blood pressure is related to impaired endothelial vasodilator functionKerry J Stewart
Department of Medicine, Division of Cardiology, Johns Hopkins School of Medicine, Baltimore, Maryland 21224, USA
Am J Hypertens 17:314-20. 2004..The mechanisms that explain this relationship are unknown. We examined the relationships of endothelial vasodilator function and of aortic stiffness with exercise BP...
- Effect of exercise on blood pressure in type 2 diabetes: a randomized controlled trialDevon A Dobrosielski
Department of Medicine, Division of Cardiology, The Johns Hopkins School of Medicine, 4940 Eastern Avenue, Baltimore, MD, 21204, USA
J Gen Intern Med 27:1453-9. 2012..Increased blood pressure (BP) in type 2 diabetes (T2DM) markedly increases cardiovascular disease morbidity and mortality risk compared to having increased BP alone...
- Peripheral endothelium-dependent flow-mediated vasodilatation is associated with left ventricular mass in older persons with hypertensionJidong Sung
Johns Hopkins University School of Medicine, Baltimore, MD, USA
Am Heart J 144:39-44. 2002..Less is known about the association between LV mass and endothelium-dependent flow-mediated dilatation (FMD) in peripheral arteries, a noninvasive measure of endothelial function...
- A finger photoplethysmography waveform during the valsalva maneuver detects changes in left heart filling pressure after hemodialysisPanagis Galiatsatos
Department of Medicine, Johns Hopkins University School of Medicine, Johns Hopkins Bayview Medical Center, 4940 Eastern Avenue, Baltimore, MD, 21224, USA
BMC Nephrol 16:138. 2015..This key PPG change, the ratio of finger PPG pulse amplitude at end-Valsalva to baseline, is known as the Pulse Amplitude Ratio, PAR. The objective of this study was to determine how PAR changes after fluid removal in hemodialysis...
- VASCULAR FUNCTION BY MAGNETIC RESONANCE ANGIOGRAPHYHARRY SILBER; Fiscal Year: 2005..abstract_text> ..