Results 1 to 10 of about 66,253 (217)

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

Journal 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, Breanna Barlage, Gabriela Delgado, Jude S. Morton, Cameron J. Morse, Erika M. Boerman, Ryan L. Hoiland, Mypinder S. Sekhon, Michael M. Tymko, Jaume Padilla, Craig A. Emter, Corey R. Tomczak, M. Harold Laughlin, T. Dylan Olver   +13 more
doaj   +2 more sources

Effect of Ephedrine versus Phenylephrine on Postoperative Delirium in Elderly Patients Undergoing Total Hip or Knee Arthroplasty: A Randomized Controlled Trial [PDF]

Drug Design, Development and Therapy
Jian-Li Song,* Jun-Tao Zhang,* Xu-Jiao Wang, Xuan Yu, Qiang Li, Bin Lu, Guan-Yu Chen Department of Anesthesiology, Zigong Fourth People’s Hospital, Zigong City, Sichuan, People’s Republic of China*These authors contributed equally
Song JL, Zhang JT, Wang XJ, Yu X, Li Q, Lu B, Chen GY   +6 more
doaj   +2 more sources

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

BMC 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, Joseph C. Hockenberry, Boran Katunaric, Paul S. Pagel, Julie K. Freed   +4 more
doaj   +1 more source

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

Korean 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, Taeha Ryu, Seong Wook Hong, Kyung Hwa Kwak, Si Oh Kim   +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

Frontiers 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, Jing Qian, Yan-Ping Zhao, Yan-Ping Zhao, Jia-Li Deng, Jia-Li Deng, Li-Zhong Wang, Li-Zhong Wang, Fei Xiao, Fei Xiao, Bei Shen, Bei Shen, Han-Qing Yao, Han-Qing Yao   +13 more
doaj   +1 more source

Influence of Various Factors on Results on Phenylephrine Test

Oftalʹmologiâ, 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

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

BMC Anesthesiology, 2020
Background Hypotension following spinal anesthesia (SA) during cesarean delivery (CD) occurs commonly and is related with maternal and fetal complications.
Kunpeng Feng, Xiaohua Wang, Xuexin Feng, Jinfeng Zhang, Wei Xiao, Fengying Wang, Qi Zhou, Tianlong Wang   +7 more
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]

Korean 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, In Ho Lee, Young Seok Jee, Pil Moo Lee, Seung In Park, Hea-Jo Yoon   +5 more
doaj   +1 more source

Ephedrine vs. phenylephrine effect on sublingual microcirculation in elderly patients undergoing laparoscopic rectal cancer surgery

Frontiers in Medicine, 2022
BackgroundThe effects of anesthesia administration on sublingual microcirculation are unknown. It is unclear how sublingual microcirculation responds to ephedrine or phenylephrine administration.
Yanbing Zhang, Limin Jin, Huayue Liu, Xiaowen Meng, Fuhai Ji   +4 more
doaj   +1 more source

A comparative study on the effect of dopamine vs phenylephrine in improving the cutaneous analgesic effect of mexiletine in rats

Perioperative Medicine, 2023
Background The present study aimed to compare the effects of the combined administration of two adjuvants, dopamine and phenylephrine, on the cutaneous analgesic effect and duration of mexiletine in rats. Methods Nociceptive blockage was evaluated by the
Kesong Zheng, Mingming Han, Fang Kang, Chengwei Yang, Juan Li   +4 more
doaj   +1 more source