Search Results - "Alian, Aymen A"

Photoplethysmography by Alian, Aymen A., M.D, Shelley, Kirk H., M.D., Ph.D

“…The photoplethysmographic (PPG) waveform, also known as the pulse oximeter waveform, is one of the most commonly displayed clinical waveforms. First described…”
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Respiratory physiology and the impact of different modes of ventilation on the photoplethysmographic waveform by Alian, Aymen A, Shelley, Kirk H

“…The photoplethysmographic waveform sits at the core of the most used, and arguably the most important, clinical monitor, the pulse oximeter. Interestingly, the…”
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Anesthesiologist as Physiologist: Discussion and Examples of Clinical Waveform Analysis by Alian, Aymen A

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Impact of central hypovolemia on photoplethysmographic waveform parameters in healthy volunteers part 2: frequency domain analysis by Alian, Aymen A., Galante, Nicholas J., Stachenfeld, Nina S., Silverman, David G., Shelley, Kirk H.

“…Objective The photoplethysmographic (PPG) waveforms are modulated by the respiratory, cardiac and autonomic nervous system. Lower body negative pressure (LBNP)…”
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Ventilation-Induced Modulation of Pulse Oximeter Waveforms: A Method for the Assessment of Early Changes in Intravascular Volume During Spinal Fusion Surgery in Pediatric Patients by Alian, Aymen A., Atteya, Gourg, Gaal, Dorothy, Golembeski, Thomas, Smith, Brian G., Dai, Feng, Silverman, David G., Shelley, Kirk

“…BACKGROUND:Scoliosis surgery is often associated with substantial blood loss, requiring fluid resuscitation and blood transfusions. In adults, dynamic preload…”
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Perioperative dilemma: challenges of the management of a patient on mega doses of morphine and methadone by Kaye, Alan David, Alian, Aymen A, Vadivelu, Nalini, Chung, Keun Sam

“…High doses of opioids are often needed in the management of cancer-related pain. A discussion of a patient's perioperative opioid management and mechanisms…”
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Role of the Photoplethysmographic Waveform in the Care of High-risk Surgical Patients by Shelley, Kirk H, Alian, Aymen A, Shelley, Adam J

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Impact of lower body negative pressure induced hypovolemia on peripheral venous pressure waveform parameters in healthy volunteers by Alian, Aymen A, Galante, Nicholas J, Stachenfeld, Nina S, Silverman, David G, Shelley, Kirk H

“…Lower body negative pressure (LBNP) creates a reversible hypovolemia by sequestrating blood volume in the lower extremities. This study sought to examine the…”
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Laryngeal physiology and voice acoustics are maintained after minimally invasive parathyroidectomy by Leder, Steven B, Donovan, Patricia, Acton, Lynn M, Warner, Heather L, Carling, Tobias, Alian, Aymen A, Udelsman, Robert

“…This prospective single-arm study investigated both laryngeal physiology and voice acoustic measures in patients undergoing minimally invasive…”
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Analysis of plethysmographic waveform changes induced by beach chair positioning under general anesthesia by Zhu, Richard, Atteya, Gourg, Shelley, Kirk H., Silverman, David G., Alian, Aymen A.

“…During shoulder surgery, patients typically are placed in the beach chair position. In rare cases, this positioning has resulted in devastating outcomes of…”
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Impact of central hypovolemia on photoplethysmographic waveform parameters in healthy volunteers. Part 1: time domain Analysis by Alian, Aymen A., Galante, Nicholas J., Stachenfeld, Nina S., Silverman, David G., Shelley, Kirk H.

“…Introduction Our study sought to explore changes in photoplethysmographic (PPG) waveform param- eters, during lower body negative pressure (LBNP) which…”
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The Best Fit Function for the Tee Short Axis Left Ventricular Ejection Fraction and Radionuclear “Gold Standard” Relationship is Curvilinear by Alian, Aymen A., Rafferty, Terence

“…Objective The objective of this study was to determine the function that best expressed the true shape of the regression line between transgastric short axis…”
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Graph connection Laplacian allows for enhanced outcomes of consumer camera based photoplethysmography imaging by Borik, Stefan, Wu, Hau-Tieng, Shelley, Kirk H., Alian, Aymen A.

“…•Quantify subtle phase variations across skin sites.•The phase is modeled as a vector field of the facial manifold.•Use the GCL technique to quantify and…”
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Understanding Anesthesia Equipment, 5th Edition by Alian, Aymen A., Shelley, Kirk H.

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IMPACT OF CENTRAL HYPOIIOLEMIA ON PHOTOPLETHYSMOGRAPHIC WAVEFORM PARAMETERS IN HEALTHY VOLUNTEERS. PART 1: TIME DOMAIN ANALYSIS by ALIAN, Aymen A, GALANTE, Nicholas J, STACHENFELD, Nina S, SILVERMAN, David G, SHELLEY, Kirk H

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