Share Email Print
cover

Neurophotonics • Open Access

Impairment of cerebral autoregulation in pediatric extracorporeal membrane oxygenation associated with neuroimaging abnormalities
Author(s): Fenghua Tian; Michael Craig Morriss; Lina Chalak; Ramgopal Venkataraman; Chul Ahn; Hanli Liu; Lakshmi Raman

Paper Abstract

Extracorporeal membrane oxygenation (ECMO) is a life-supporting therapy for critically ill patients with severe respiratory and/or cardiovascular failure. Cerebrovascular impairment can result in hemorrhagic and ischemic complications commonly seen in the patients supported on ECMO. We investigated the degree of cerebral autoregulation impairment during ECMO as well as whether it is predictive of neuroimaging abnormalities. Spontaneous fluctuations of mean arterial pressure (MAP) and cerebral tissue oxygen saturation (SctO2) were continuously measured during the ECMO run. The dynamic relationship between the MAP and SctO2 fluctuations was assessed based on wavelet transform coherence (WTC). Neuroimaging was conducted during and/or after ECMO as standard of care, and the abnormalities were evaluated based on a scoring system that had been previously validated among ECMO patients. Of the 25 patients, 8 (32%) had normal neuroimaging, 7 (28%) had mild to moderate neuroimaging abnormalities, and the other 10 (40%) had severe neuroimaging abnormalities. The degrees of cerebral autoregulation impairment quantified based on WTC showed significant correlations with the neuroimaging scores (R=0.66; p<0.0001). Evidence that cerebral autoregulation impairment during ECMO was related to the patients’ neurological outcomes was provided.

Paper Details

Date Published: 19 August 2017
PDF: 10 pages
Neurophoton. 4(4) 041410 doi: 10.1117/1.NPh.4.4.041410
Published in: Neurophotonics Volume 4, Issue 4
Show Author Affiliations
Fenghua Tian, The Univ. of Texas at Arlington (United States)
Michael Craig Morriss, The Univ. of Texas Southwestern Medical Ctr. at Dallas (United States)
Lina Chalak, The Univ. of Texas Southwestern Medical Ctr. at Dallas (United States)
Ramgopal Venkataraman, The Univ. of Texas at Arlington (United States)
Chul Ahn, The Univ. of Texas Southwestern Medical Ctr. at Dallas (United States)
Hanli Liu, The Univ. of Texas at Arlington (United States)
Lakshmi Raman, The Univ. of Texas Southwestern Medical Ctr (United States)


© SPIE. Terms of Use
Back to Top