Results 11 to 20 of about 66,688 (258)

Effect of Phenylephrine on Cerebrovascular Regulation: A Translational Perspective [PDF]

open access: yesJournal of the American Heart Association: Cardiovascular and Cerebrovascular Disease
Background Phenylephrine is an alpha 1‐adrenergic receptor (α1R) agonist. Evidence indicates activation of α1Rs can initiate both vasoconstrictor and dilator signaling. How phenylephrine affects cerebrovascular regulation remains unclear.
Adam M. S. Luchkanych   +13 more
doaj   +2 more sources

Effects of continuous infusion of phenylephrine vs. norepinephrine on parturients and fetuses under LiDCOrapid monitoring: a randomized, double-blind, placebo-controlled study [PDF]

open access: goldBMC Anesthesiology, 2020
Background Hypotension following spinal anesthesia (SA) during cesarean delivery (CD) occurs commonly and is related with maternal and fetal complications.
Kunpeng Feng   +7 more
doaj   +2 more sources

Comparison of Metaraminol, Phenylephrine, and Norepinephrine Infusion for Prevention of Hypotension During Combined Spinal-Epidural Anaesthesia for Elective Caesarean Section: A Three-Arm, Randomized, Double-Blind, Non-Inferiority Trial

open access: goldDrug Design, Development and Therapy, 2022
Youfa Zhou,1,* Yunyun Yu,1,2,* Miaofei Chu,1,3 Yanting Zhang,1 Xin Yu,1 Gang Chen1 1Department of Anesthesiology, Sir Run Run Shaw Hospital, School of Medicine, Zhejiang University, Hangzhou, Zhejiang, People’s Republic of China; 2Department of ...
Zhou Y   +5 more
doaj   +3 more sources

Transient receptor potential canonical type 3 channels control the vascular contractility of mouse mesenteric arteries [PDF]

open access: yes, 2014
Transient receptor potential canonical type 3 (TRPC3) channels are non-selective cation channels and regulate intracellular Ca2+ concentration. We examined the role of TRPC3 channels in agonist-, membrane depolarization (high K+)-, and mechanical ...
Abramowitz, Joel   +6 more
core   +14 more sources

Blockade of endothelial Mas receptor restores the vasomotor response to phenylephrine in human resistance arterioles pretreated with captopril and exposed to propofol

open access: yesBMC Anesthesiology, 2022
Background Hypotension that is resistant to phenylephrine is a complication that occurs in anesthetized patients treated with angiotensin converting enzyme (ACE) inhibitors.
Mary E. Schulz   +4 more
doaj   +1 more source

The effect of the intravenous phenylephrine on the level of spinal anesthesia [PDF]

open access: yesKorean Journal of Anesthesiology, 2011
BackgroundSpinal anesthesia causes hypotension and bradycardia due to sympathetic nerve block and it is difficult to predict the level of sensory block and the duration of blockade.
Young Hoon Park   +4 more
doaj   +1 more source

Determination of the Relative Potency of Norepinephrine and Phenylephrine Given as Infusions for Preventing Hypotension During Combined Spinal-Epidural Anesthesia for Cesarean Delivery: A Randomized Up-And-Down Sequential Allocation Study

open access: yesFrontiers in Pharmacology, 2022
Purpose: The relative potency of norepinephrine and phenylephrine given as boluses to treat hypotension during spinal anesthesia for cesarean delivery has been reported but few data are available for infusions.
Jing Qian   +13 more
doaj   +1 more source

Influence of Various Factors on Results on Phenylephrine Test

open access: yesOftalʹmologiâ, 2020
Phenylephrine test is one of the main factors determining the possibility of performing superior tarsal muscle resection. However, the influence of various factors on its result remains unexplored.Aim.
V. V. Potyomkin, E. V. Goltsman
doaj   +1 more source

The effects on Apgar scores and neonatal outcomes of switching from a combination of phenylephrine and ephedrine to phenylephrine alone as a prophylactic vasopressor during spinal anesthesia for cesarean section [PDF]

open access: yesKorean Journal of Anesthesiology, 2014
BackgroundEphedrine, unlike phenylephrine, has a dose-related propensity to depress fetal pH during spinal anesthesia during cesarean section. A low arterial umbilical cord pH has a strong association with neonatal mortality and morbidity. The purpose of
Joo Yeon Jeon   +5 more
doaj   +1 more source

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