EuroSCORE II had better predictive discrimination for operative mortality than EuroSCORE I, which greatly overestimated this risk. EuroSCORE II fared well compared with the STS risk score. The inclusive nature of EuroSCORE II for numerous procedures provides more flexibility than the STS score for complex procedures. EuroSCORE II should be considered for calculating risk score for complex cardiac surgical patients.

Background: The Society of Thoracic Surgeons (STS) recommends using gait speed as a marker of frailty to identify cardiac surgery patients at risk for adverse outcomes. However, a single marker of frailty may not provide consistently reliable risk information. We evaluated the impact of frailty and gait speed on patient outcomes after elective cardiac surgery. Methods: This was a prospective study of 167 older (!65 years) coronary artery bypass grafting (CABG) and/or valve surgery patients. Patients were assessed using Cardiovascular Health Study (CHS) Frailty Index criteria: weight loss, exhaustion, physical activity, gait speed, and grip strength. Results: Frailty was identified in 39 patients (23%) using CHS criteria. Frail patients had longer median intensive care unit stays (54 vs. 28 h, p = 0.003), longer median length of stay (8 vs. 5 days, p < 0.001), and greater likelihood of STS-defined complications (54% vs. 32%, p = 0.011) and discharge to an intermediate-care facility (45% vs. 12%, p < 0.001) but were not different from nonfrail patients on major outcome, operative mortality, or readmissions. After multivariate adjustment, frail and nonfrail patients were similar on perioperative outcomes. Absolute gait speed and slow gait speed using a cutoff were not related to incidence of STS-defined complications or major outcome in multivariate analyses. However, higher body mass index was correlated with slower gait speed (r s = 0.30, p < 0.001). Conclusions: The CHS index did not identify ''frail'' patients at increased risk for adverse outcomes. No relationship was found between gait speed and outcome. There is a need for alternative multidimensional measures to assess frailty in cardiac surgical patients.

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A multidisciplinary blood conservation program can significantly control blood transfusion rates, improve outcomes, and be sustained over time. Efforts are needed to implement evidence-based protocols to standardize and decrease blood use in cardiac surgery to improve outcomes and reduce cost.

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In patients with a routine postoperative course, older age was associated with more postoperative blood transfusion. Older age was also predictive of longer length of stay and poorer survival, even after accounting for clinical factors. Continued study into effects of transfusion, particularly in the elderly, should be directed toward hospital transfusion protocols to optimize perioperative care.

The STS risk model was reliably predictive of short and extended LOS but did not allow prediction of exact LOS in days. Accounting for potentially modifiable clinical variables, such as low hematocrit and blood transfusion, especially in elective patients, should lead to shorter LOS, higher satisfaction, and reduced financial burden.