Raul A Borracci1, Gustavo Ochoa2, Carlos A Ingino3, Janina M Lebus3, Sabrina V Grimaldi3, Maria X Gambetta3. 1. Department of Cardiac Surgery, ENERI-Sagrada Familia Clinic, Buenos Aires, Argentina School of Medicine, Buenos Aires University, Buenos Aires, Argentina raborracci@gmail.com. 2. Department of Anesthesia, and Cardiology, ENERI-Sagrada Familia Clinic, Buenos Aires, Argentina. 3. Department of Cardiology, ENERI-Sagrada Familia Clinic, Buenos Aires, Argentina.
Abstract
OBJECTIVES: The aim was to analyse in-hospital outcomes of patients over 70 years of age undergoing routine immediate operation theatre (OT) extubation after on-pump or off-pump cardiac surgery. METHODS: A retrospective analysis was performed of prospectively collected data over a 4-year period (2011-14) from elderly patients undergoing early extubation after cardiac surgery at a single institution. All patients over 70 years were considered eligible for immediate OT or intensive care unit (ICU) early extubation after meeting specific criteria. All types of non-emergency cardiac surgery were included. Cardiac surgical risk stratification was assessed with EuroSCORE II and age, creatinine level and left ventricular ejection fraction (ACEF) score. RESULTS: Among the 415 patients operated on during the period, 275 (66.3%) were ≥70 years old. One hundred and forty patients (50.9%) of the elderly group were extubated successfully in the OT. Excluding off-pump coronary surgery, OT extubation was achieved in 51.5% of cases. The rate of risk of reintubation within 24 h of surgery after OT extubation was 2.1%. The in-hospital mortality rate was 4.7%, and the complication rate was 11.6%, independently of extubation timing. Elderly patients extubated in the OT had a significantly lower median EuroSCORE II risk level and ACEF score, more isolated valve surgeries, reduced cardiopulmonary bypass time, less complications and shorter length of stay than ICU-extubated patients. In the multivariate analysis, only the ACEF score remained as an independent variable associated with OT extubation in the elderly (odds ratio 25.0, 95% CI 2.74-228.8, P = 0.004), and had good discriminating power [receiver operating characteristics (ROC) area 0.713]. On the other hand, the EuroSCORE ROC area used to predict OT extubation was 0.694, and the cut-off analysis showed that a risk value under 2.11 was associated with 72.1% OT extubation versus 37.3% when the risk value was over 2.11 (P = 0.0002). CONCLUSIONS: OT extubation in the elderly can be safely performed in nearly 50% of patients, without apparently worsening their outcomes. A key point of this success was the use of a short-acting volatile agent to maintain anaesthesia throughout the procedure. Low- or moderate-risk cardiac surgery assessed with a preoperative EuroSCORE II <2.11 will help to better predict successful OT extubation in the elderly.
OBJECTIVES: The aim was to analyse in-hospital outcomes of patients over 70 years of age undergoing routine immediate operation theatre (OT) extubation after on-pump or off-pump cardiac surgery. METHODS: A retrospective analysis was performed of prospectively collected data over a 4-year period (2011-14) from elderly patients undergoing early extubation after cardiac surgery at a single institution. All patients over 70 years were considered eligible for immediate OT or intensive care unit (ICU) early extubation after meeting specific criteria. All types of non-emergency cardiac surgery were included. Cardiac surgical risk stratification was assessed with EuroSCORE II and age, creatinine level and left ventricular ejection fraction (ACEF) score. RESULTS: Among the 415 patients operated on during the period, 275 (66.3%) were ≥70 years old. One hundred and forty patients (50.9%) of the elderly group were extubated successfully in the OT. Excluding off-pump coronary surgery, OT extubation was achieved in 51.5% of cases. The rate of risk of reintubation within 24 h of surgery after OT extubation was 2.1%. The in-hospital mortality rate was 4.7%, and the complication rate was 11.6%, independently of extubation timing. Elderly patients extubated in the OT had a significantly lower median EuroSCORE II risk level and ACEF score, more isolated valve surgeries, reduced cardiopulmonary bypass time, less complications and shorter length of stay than ICU-extubated patients. In the multivariate analysis, only the ACEF score remained as an independent variable associated with OT extubation in the elderly (odds ratio 25.0, 95% CI 2.74-228.8, P = 0.004), and had good discriminating power [receiver operating characteristics (ROC) area 0.713]. On the other hand, the EuroSCORE ROC area used to predict OT extubation was 0.694, and the cut-off analysis showed that a risk value under 2.11 was associated with 72.1% OT extubation versus 37.3% when the risk value was over 2.11 (P = 0.0002). CONCLUSIONS: OT extubation in the elderly can be safely performed in nearly 50% of patients, without apparently worsening their outcomes. A key point of this success was the use of a short-acting volatile agent to maintain anaesthesia throughout the procedure. Low- or moderate-risk cardiac surgery assessed with a preoperative EuroSCORE II <2.11 will help to better predict successful OT extubation in the elderly.
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