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Quick Assessment of the Lower Limit of Cerebral Autoregulation Using Transcranial Doppler during Cardiopulmonary Bypass in Cardiac Surgery: A Feasibility Study.
Desebbe, Olivier; Bachelard, Etienne; Deperdu, Marie; Manet, Romain; Alexander, Brenton; Beuvelot, Johanne; Nloga, Joseph; Joosten, Alexandre; Gergelé, Laurent.
Afiliación
  • Desebbe O; Department of Anesthesiology and Intensive Care, Ramsay Sante, Sauvegarde Clinic, 69009 Lyon, France.
  • Bachelard E; Department of Anesthesiology and Intensive Care, Lyon Sud University Hospital, Hospices Civils de Lyon, 69495 Pierre Bénite, France.
  • Deperdu M; Lyon Est Medicine Faculty, Claude Bernard Lyon 1 University, 69008 Lyon, France.
  • Manet R; Cardiovascular, Metabolic and Nutritional Regulations, Claude Bernard University, 69008 Lyon, France.
  • Alexander B; Department of Neurosurgery B, P. Wertheimer Hospital, Hospices Civils de Lyon, 69002 Lyon, France.
  • Beuvelot J; Department of Anesthesiology, University of California, San Diego, CA 92093, USA.
  • Nloga J; Department of Anesthesiology and Intensive Care, Ramsay Sante, Sauvegarde Clinic, 69009 Lyon, France.
  • Joosten A; Department of Cardiac Surgery, Ramsay Health Care, Sauvegarde Clinic, 69009 Lyon, France.
  • Gergelé L; Department of Anesthesiology, Intensive Care & Perioperative Medicine, AP-HP. Paris Saclay University, Paul Brousse Hospital, 94800 Villejuif, France.
Rev Cardiovasc Med ; 24(6): 156, 2023 Jun.
Article en En | MEDLINE | ID: mdl-39077528
ABSTRACT

Background:

During cardiac surgery, maintaining a mean arterial pressure (MAP) within the range of cerebral autoregulation (CA) may prevent postoperative morbidity. The lower limit of cerebral autoregulation (LLA) can be determined using the mean velocity index (Mx). The standard Mx is averaged over a ten second period ( Mx 10s ) while using a two second averaging period ( Mx 2s ) is faster and may record more rapid variations in LLA. The objective of this study is to compare a quick determination of LLA (qLLA) using Mx 2s with the reference LLA (rLLA) using Mx 10s .

Methods:

Single center, retrospective, observational study. Patients undergoing cardiac surgery with cardiopulmonary bypass. From January 2020 to April 2021, perioperative transcranial doppler measuring cerebral artery velocity was placed on cardiac surgery patients in order to correlate with continuous MAP values. Calculation of each patient's Mx was manually determined after the surgery and qLLA and rLLA were then calculated using a threshold value of Mx > 0.4.

Results:

55 patients were included. qLLA was found in 78% of the cases versus 47% for rLLA. Despite a -3 mmHg mean bias, limits of agreement were large [-19 mmHg (95% CI -13; -25), and +13 mmHg (95% CI +6; +19)]. There was an important interobserver variability (kappa rLLA = 0.46; 95% CI 0.24-0.66; and Kappa qLLA = 0.36; 95% CI 0.20-0.52).

Conclusions:

Calculation of qLLA is feasible. However, the large limits of agreement and significant interobserver variability prevent any clinical utility or interchangeability with rLLA.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: Rev Cardiovasc Med Asunto de la revista: ANGIOLOGIA / CARDIOLOGIA Año: 2023 Tipo del documento: Article País de afiliación: Francia Pais de publicación: Singapur
Texto completo
Añadir a Mi BVS
Imprimir
XML
PubMed Links
Buscar en Google

Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: Rev Cardiovasc Med Asunto de la revista: ANGIOLOGIA / CARDIOLOGIA Año: 2023 Tipo del documento: Article País de afiliación: Francia Pais de publicación: Singapur