Results 101 to 110 of about 4,106,222 (239)
Green line: pulsatility index (PI), based on the conventional analysis of Doppler spectrum (right y-axis); red line: sonographer’s auditory perception; blue line: auditory perception supported by visual presentation of the spectrum (left y-axis); n ...
Tomas Jansson (586656) +8 more
core +1 more source
Introducer sheaths are commonly used as distal perfusion cannulas during VA‐ECMO; efficacy is uncertain. A simplified hydraulic bench experiment evaluated cannula and connection configurations during clinically relevant blood flow using water and simulated blood media. Distal flow fraction decreased with larger arterial cannulas and was not restored by
Elliott Worku +4 more
wiley +1 more source
How to perform Doppler examination of the maternal ophthalmic artery
Ultrasound in Obstetrics &Gynecology, EarlyView.
A. Youssef, M. Paoli, K. H. Nicolaides
wiley +1 more source
Initial V‐A ECMO Flow‐Index and Its Association With Inflammation, Organ Failure, and Outcomes
Higher initial V‐A ECMO flow‐index was associated with greater shock severity and independently associated with multi‐organ failure. Early hemolysis may partly contribute to this association, particularly in eCPR patients, whereas no significant indirect effect through IL‐6 was observed.
Kostiantyn Kozakov +9 more
wiley +1 more source
Informativity of pulsatility index and cerebral autoregulation in hydrocephalus
SummaryBackgroundA high correlation between transcranial Doppler pulsatility index (PI) increase and intracranial hypertension has been recently demonstrated in most neurosurgical patients. But in patients with hydrocephalus PI is sometimes controversial.
Semenyutin, Vladimir +6 more
openaire +1 more source
HeartWare‐BiVAD was associated with more frequent right ventricular cannulation, whereas HM3‐BiVAD demonstrated a trend toward improved survival despite a more severe preimplant clinical profile, suggesting a potential device‐related advantage of HM3 in biventricular support.
Daler Rahimov +10 more
wiley +1 more source
Fetal Femoral Artery Doppler Evaluation in Late-Onset Fetal Growth Restriction: A Case-Control Study
Objective: To compare the femoral artery and other ultrasonographic Doppler measurements between fetuses with late-onset fetal growth restriction and uncomplicated fetuses.
Atakan Tanacan +6 more
doaj +1 more source
Abstract Purpose Physiological pulsations driven by cardiac, respiratory, and vasomotor activity are essential for solute transport within perivascular and perineural cerebrospinal fluid (CSF) pathways that support brain and eye clearance systems. Previous studies have shown that parasympathetic blockade significantly reduces ocular pulsation power and
Ebrahimi Seyed‐Mohsen +9 more
wiley +1 more source
P87 CEREBROVASCULAR REACTIVITY DURING COGNITIVE ACTIVATION IN ADULTS WITH CONTROLLED HYPERTENSION
Hypertension, even when pharmaceutically controlled, may accelerate arterial stiffening and impair changes in blood flow necessary to support neural activity (neurovascular coupling [NVC]).
Wesley Lefferts +3 more
doaj +1 more source

