Results 71 to 80 of about 2,670,948 (286)

The pressure field model: a challenge to the conventional Starling and Guyton model of hemodynamic management

Frontiers in Anesthesiology
IntroductionEnsuring hemodynamic stability with adequate perfusion to vital organs is critical to the safe conduct of anesthesia. Recent advances in hemodynamic monitoring technologies allow pressure, flow, and resistance to be measured continuously ...
Stephen F. Woodford, Stephen F. Woodford, Laurence Weinberg, Laurence Weinberg, Lachlan F. Miles, Lachlan F. Miles, Ruth C. Marshall, Bernhard Riedel, Bernhard Riedel, Philip J. Peyton, Philip J. Peyton   +10 more
doaj   +1 more source

The utility of limited trans-thoracic echocardiography in the stratification of pulse pressure variation: A feasibility study in major open abdominal surgery

Saudi Journal of Anaesthesia, 2018
Background and Aim: Limitation in use of pulse pressure variation (PPV) in predicting fluid responsiveness (FR) in hypotensive patients is encountered when values are in the “gray zone ” (8–13%).
Tanvir Samra, R Deepak, Aveek Jayant, Vikas Saini   +3 more
doaj   +1 more source

Noninvasive Hemodynamic Monitoring In Emergency Trauma Patients [PDF]

, 2018
Noninvasive hemodynamic monitoring has evolved steadily over the past few decades in response to healthcare providers\u27 preference for less invasive monitoring methods for their patients. Invasive monitoring has its place in the critically ill patient
Boyd, Ryan
core   +1 more source

Soft, Multi‐Wavelength Photoplethysmography Enables Reliable Neonatal Blood Pressure Monitoring Via Error Stratification

Advanced Science, EarlyView.
A soft hybrid multi‐wavelength PPG wearable acquires neonatal signals. Synchronized PPG and invasive ABP data are segmented into fixed windows. A 1D‐EfficientNet model predicts segment‐level SBP and DBP. Model performance is examined with retrospective subgroup analysis across acquisition conditions.
Wenqi Shi, Lanlan Mi, Jiarong Chen, Biao Liu, Min Wang, Zisheng Dai, Bin Liu, Ruize Gao, Yunfeng Lin, Weiwei Guo, Guoxing Wang, Wenyi Luo, Cheng Chen   +12 more
wiley   +1 more source

Age-specific hemodynamic profiles during pediatric anesthesia induction: a prospective study using carotid artery auto doppler flow technology

BMC Anesthesiology
Background Perioperative hemodynamic monitoring is essential for maintaining cardiovascular stability, fluid optimization, and complication prevention.
Kexin Zhong, Xuqing Lai, Jiaying Zhang, Xien Yang, Zhouzhou Zheng, Guozhu Liao, Na Zhang, Yingyi Xu   +7 more
doaj   +1 more source

Deep‐Learning‐Driven High‐Fidelity In Vivo Hyperspectral Fluorescence Imaging Under Extreme Photon‐Limited Conditions

Advanced Science, EarlyView.
Highly overlapping fluorescent signals become distinguishable in photon‐limited living organisms via advanced imaging with intelligent reconstruction. The resulting in vivo hyperspectral imaging capability reveals nanoplastic uptake and circulation in live zebrafish, providing a new approach for studying complex biological and environmental processes ...
Renjian Li, Shutao Wu, Kaixiang Li, Zhenyu An, Yuwen Ben, Guiye LI, Sunil Kumar, James Mcginty, Tawfique Hasan, Songnian Fu, Meng Zhang, LingLing Chen   +11 more
wiley   +1 more source

Randomized preclinical study of machine perfusion in vascularized composite allografts

BJS (British Journal of Surgery), EarlyView., 2020
This study was designed to identify the optimum machine perfusion parameters for preservation of limbs before transplantation, and determine whether this was better than cold storage. Normothermic machine perfusion at a pressure of 70 mmHg (NMP‐70) provided superior preservation to cold storage after transplantation.
K. R. Amin, J. P. Stone, J. Kerr, A. Geraghty, L. Joseph, A. Montero‐Fernandez, J. K. Wong, J. E. Fildes   +7 more
wiley   +1 more source

Central sleep apnea in chronic heart failure with hypoxemia - treatment efficacy and hemodynamic effects of three different treatment modalities: a case report

Sleep Science and Practice
Background The optimal treatment for central sleep apnea (CSA) depends on the underlying pathophysiology and should consider the potential for hemodynamic impairment when using positive airway pressure devices.
Christoph Müller, Jens Kerl, Dominic Dellweg   +2 more
doaj   +1 more source

A Novel Pak1 Activator Ameliorates ER Stress for HFpEF Therapy

Advanced Science, EarlyView.
Chronic metabolic stress is a major contributor to HFpEF progression. Under prolonged metabolic stress, Pak1 activity becomes impaired, contributing to disrupted ER proteostasis, cardiomyocyte apoptosis, fibrosis, and diastolic dysfunction. Mechanistically, Pak1 overexpression activates the ERK1/2–MNK1–eIF4E signaling axis, promotes translational ...
Honglin Xu, Hongyuan Zhang, Tayyiba Azam, Susanne S. Hille, Yingjuan Liu, Min Zi, Jiaqing Lang, He Yu, Yujia Cao, Bernard D. Keavney, Tamer M. A. Mohamed, Jessica M. Miller, Riham R. E. Abouleisa, Ming Xu, Elizabeth J. Cartwright, Oliver J. Müller, Ming Lei, Xin Wang   +17 more
wiley   +1 more source

Comparison of non-invasive cardiac output across the three trimesters of gestation in preeclamptic versus normotensive pregnancies

European Journal of Medical Research
Objective To longitudinally track noninvasive hemodynamic parameters across different gestational ages in pregnancies with and without preeclampsia (PE) using the PeriCare noninvasive hemodynamic monitoring system.
Xue Li, Jiujiang Liao, Qian Tang, Yangyang Gong, Zhen Chen, Guoting Qing, Caixiu Pu, Shu Chen   +7 more
doaj   +1 more source