A Multidisciplinary Protocol-Driven Approach to Improve Extubation Times After Cardiac Surgery

Abstract

Background: Prolonged intubation after cardiac surgery is associated with significant morbidity. A fast-track extubation protocol primarily driven by bedside providers was instituted for all postoperative cardiac surgery patients to facilitate safe and expeditious extubation.

Methods: A retrospective review of 1,581 cardiac surgery patients over an 8-year period was performed. Before 2011, nonprotocolized standard perioperative management was utilized (n = 807). From 2011 onward, a fast-track extubation (FTE) protocol directed by bedside providers was instituted (n = 774). Postoperatively, patients were placed on pressure-regulated volume control and titrated down to minimal support to maintain peripheral capillary oxygen saturation greater than 94%. For patients deemed ready for weaning (no evidence of hypoxia, hemodynamic instability, and so forth), a 30-minute continuous positive airway pressure trial was performed. Patients meeting all neurologic, respiratory, and cardiovascular criteria were extubated. The impact of the FTE algorithm on timely extubation, clinical outcomes, and safety was assessed.

Results: Baseline preoperative and intraoperative characteristics were similar between pre-FTE and FTE groups. Before instituting the FTE protocol, the rate of early extubation (less than 6 hours) was 43.7%, and increased to 64.1% during the FTE era (p < 0.001). Median time to extubation was also found to be significantly decreased: 295 minutes (interquartile range: 288) versus 385 minutes (interquartile range: 362, p = 0.041). There was no statistically significant difference in reintubation rates or 30-day mortality.

Conclusions: The institution of a bedside provider-directed FTE pathway reduced overall intubation times and increased the rate of early extubation, without an increase in reintubation or mortality. This program-wide multidisciplinary approach appears to promote safe and expeditious extubation of cardiac surgery patients.