Immediate extubation after off-pump coronary artery bypass graft surgery in 1,196 consecutive patients: feasibility, safety and predictors of when not to attempt it.

OBJECTIVE

The purpose of this study was to evaluate the feasibility and safety of immediate extubation (ultrafast-track anesthesia [UFTA]) in the operating room, and the predictors of when not to attempt it in patients undergoing off-pump coronary artery bypass graft surgery (OPCAB).

DESIGN

Case series.

SETTING

A private hospital.

PARTICIPANTS

One thousand one hundred ninety-six patients undergoing OPCAB surgery, representing 4 years of a single anesthesia service's practice (3 anesthesiologists), were evaluated for immediate extubation. All patients were considered amenable to immediate extubation if specific criteria were met.

INTERVENTION

Patients received general anesthesia (UFTA protocol) and underwent off-pump coronary artery bypass graft surgery.

MEASUREMENTS AND MAIN RESULTS

One thousand sixty-five patients (89%) met extubation criteria and were extubated successfully in the operating room. By multivariate analysis, the following independent predictors of avoiding immediate extubation were identified: reoperation (odds ratio [OR] = 3.9, p < 0.001), pre-existing renal disease (OR = 3.1, p < 0.0001), diabetes (OR = 1.7, p < 0.007), preoperative intra-aortic balloon pump placement (OR = 7.4, p < 0.0001), and total surgical time (OR = 3.7, p < 0.0001). Patients who met extubation criteria had lower in-hospital reintubation (2.5% v 16%, p < 0.001), myocardial infarction (1.03% v 4.58%, p = 0.001), renal insufficiency (2.2% v 7.63%, p < 0.001), stroke (0.4% v 2.29%, p = 0.032), and mortality rates (1.2% v 10.7%, p < 0.001) than patients who did not.

CONCLUSIONS

UFTA is feasible and safe in most patients undergoing OPCAB surgery. Baseline and intraoperative data predicted when immediate extubation should not be attempted.