Cardiothoracic & vascular anesthesia

The Impact of Blood Pressure Below Personalized Lower Cerebral Autoregulation Limit on Outcomes After Cardiac Surgery: A Retrospective Study

J Cardiothorac Vasc AnesthPublished Retrospective observational study

Authors' conclusion

These findings indicate that LLA-related metrics have limited utility for predicting MMOM.

Study context

Population
Patients undergoing cardiovascular surgery at a university hospital
Participants
686 cardiovascular surgeries
Exposure
Exposure: area under the time-pressure curve for mean arterial pressure (MAP) below the lower limit of autoregulation (LLA)
Outcome
Major morbidity and mortality (MMOM: stroke, AKI, low cardiac output syndrome, mechanical ventilation >48 hours, postoperative mortality)
Methodological detailssingle-centre
  • Single-centre

Main finding

As reported in the abstract

Association of AUCABP<LLA with MMOM
No significant association between AUCABP<LLA and major morbidity and mortality (MMOM)
p > 0.05

Observational data: associations, not effects.

Further findings

MMOM components: operative mortality and low cardiac output syndrome

Operative mortality associated with AUCABP<LLA
P < 0.05
Low cardiac output syndrome associated with AUCABP<LLA
P < 0.05
  • Controlling for preoperative hemoglobin levels and logistic EuroSCORE

Original publication

The Impact of Blood Pressure Below Personalized Lower Cerebral Autoregulation Limit on Outcomes After Cardiac Surgery: A Retrospective Study. J Cardiothorac Vasc Anesth. Published 15 December 2024. doi:10.1053/j.jvca.2024.12.019

Composed by AI from the published abstract and checked against it. How Briefs are made →

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