Feasibility of On-table Extubation After Cardiac Surgery with Cardiopulmonary Bypass: A Randomized Clinical Trial

BACKGROUND

The use of short-acting anesthetics, muscle relaxation, and anesthesia depth monitoring allows maintaining sufficient anesthesia depth, fast recovery, and extubation of the patients in the operating room (OR). We evaluated the feasibility of extubation in the OR in cardiac surgery.

METHODS

This clinical trial was performed on 100 adult patients who underwent elective noncomplex cardiac surgery using cardiopulmonary bypass. Additional to the routine monitoring, the patients' depth of anesthesia and neuromuscular blocked were assessed by bispectral index and nerve stimulator, respectively. In the on-table extubation (OTE) group (n = 50), a limited dose of sufentanil (0.15 µg/kg/h) and inhalational anesthetics were used for early waking. In the control group (n = 50), the same anesthesia-inducing drugs were used but the dose of sufentanil during the operation was 0.7 - 0.8 µg/kg/h. After the operation, cardiorespiratory parameters and ICU stay were documented.

RESULTS

Demographic and clinical variables were comparable in both study groups. In the OTE group, we failed to extubate two patients in the OR (success rate of 96%). There were no significant differences between the two groups in terms of systolic and diastolic blood pressure at the time of entering the ICU (P > 0.05). Heart rate was lower in the OTE than in the control group at ICU admission (89.4 ± 13.1 vs. 97.6 ± 12.0 bpm; P = 0.008). The ICU stay time was lower in the OTE group (34 (21.5 - 44) vs. 48 (44 - 60) h; P = 0.001).

CONCLUSIONS

Combined inhalational-intravenous anesthesia along with using multiple anesthesia monitoring systems allows reducing the dose of total anesthetics and maintaining adequate anesthesia depth during noncomplex cardiac surgery with cardiopulmonary bypass. Thus, extubation of the trachea in the OR is feasible in these patients.

Effects of nurse-led clinical pathway in coronary artery bypass graft surgery: A quasi-experimental study

AIMS AND OBJECTIVES

To develop and evaluate the effects of a nurse-led clinical pathway for patients undergoing coronary artery bypass graft surgery.

BACKGROUND

A clinical pathway is a multidisciplinary care plan, based on evidence and guidelines to provide consistent, quality care to patients and improve outcomes.

DESIGN

Prospective, quasi-experimental design.

METHODS

Patients hospitalised for coronary artery bypass graft between April 2014-November 2015 in a hospital in Turkey were studied. First 42 usual care patients were enrolled to determine outcomes and plan for the development of the clinical pathway followed by 40 patients in the newly developed clinical pathway. The primary outcome was length of stay and secondary outcomes related to recovery from surgery (e.g., time to extubation, first feeding).

RESULTS

The mean age for the clinical pathway group was 60 and for usual care was 63 years. Most were male (CP = 78%, UC = 69%). There were significant differences between groups for the primary outcome. Length of stay in the intensive care unit was 38.9 hr for CP and 50.7 hr for usual care patients p < .01. Total hospital time was 144.4 hr for clinical pathway and 162.2 hr for usual care, p < .05. For secondary measures, the following times were less for the clinical pathway group than for the usual care: time to extubation and nasogastric tube removal (5.7 vs. 8.6 hr, p < .01), first oral feeding (4.7 vs. 10.9 hr, p < .001), first mobilisation (8.4 vs. 22.9 hr, p < .001) and first bowel movement (69.8 vs. 85.9 hr, p < .01). There were no statistically significant differences in the 3-month readmission rates and complication rates between the groups, except the renal complication rates were higher in the usual care (n = 16, 38%) than in the clinical pathway (n = 7, 17.5%) (p < .05).

CONCLUSION

The nurse-led clinical pathway was effective in improving length of stay in both the ICU and hospital as well as the secondary outcomes.

RELEVANCE TO CLINICAL PRACTICE

This study contributes to previous studies supporting clinical pathway use can improve the length of stay and quality of care in patients undergoing coronary artery bypass graft surgery.