[Landiolol does not affect bispectral index scale in off-pump coronary artery bypass surgery in patients under fast-track cardiac anesthesia].

BACKGROUND

We evaluated the effect of landiolol, a novel ultra-short-acting receptor-selective blocker, on bispectral index scale (BIS).

METHODS

Ten patients scheduled for off-pump coronary artery bypass (OPCAB) surgery under fast-track cardiac anesthesia were analyzed. Anesthesia was maintained with appropriate additional administration of fentanyl (total dose: 10-15 microg x kg(-1)) and vecuronium under inhalation of a mixture of oxygen, air and sevoflurane (less than 2%). Landiolol was administered continuously for 5 min, when the heart rate (HR) was 80 or more per minute and the BIS values were kept between 40-60. HR, mean arterial pressure (MAP), cardiac index (CI) and BIS values were recorded at 4 time points (after induction of anesthesia, before administration of landiolol, immediately before comple- tion of administration, and 15 minutes after completion of administration).

RESULTS

HR decreased significantly by landiolol administration, but there were no significant changes in MAP, CI and BIS.

CONCLUSIONS

This study suggests that landiolol does not affect BIS in OPCAB surgery patients under fast-track cardiac anesthesia.