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    Comparison of cardiovascular effects and intubating conditions of cisatracurium and rocuronium in patients with coronary artery disease
    (2000) Torkoz A.; But A.K.; Koroglu A.; Durmus M.; Togal T.; Ersoy M.O.
    This study was designed to compare the cardiovascular effects and intubation condition of cisatracurium and rocuronium in cardiac surgical patients. Twenty patients scheduled for elective coronary artery bypass surgery were randomly assigned into two equal groups in a double blind fashion. Patients in group R (n=10) were given 0.9 mg/kg rocuronium and patients in group C (n=10) were given 0.15 mg/kg cisatracurium. Tracheal intubation was performed upon completion of maximum depression (% 100) in Train-of-four stimulation. Intubation conditions were rated according to Goldberg scale [1 (excellent) to 4 (intubation not possible)]. Heart rate (HR), systolic and diastolic arterial pressure SAP and DAP), central venous pressure (CVP), mean pulmonary artery pressure (PAPm), pulmonary artery wedge pressure (PAWP), cardiac output (CO), cardiac index (CI), systemic and pulmonary vascular resistances (SVR and PVR) were measured invasively. Measurements were made before induction, 2 min after induction of anesthesia (basal), 1 min after after administration of muscle relaxant, at maximum depression in TOF and 2, 5, 10 min after intubation. Intubation condition were excellent in 60% of patients in the rocuronium group and in 90% of patients in the cisatracurium group, however there were no significant differences between the two groups (p>0.05). Rocuronium produced statistically significant increase in the heart rate at maximum depression in TOF, 2 min after intubation and in systolic blood pressure at 2 min after intubation (p<0.05). Other hemodynamic changes (DBP, CVP, CO, CI, PAPm, PAWP, SVR, PVR) were similar in the groups. As a result, induction with cisatracurium presented a more haemodynamically stable situation than rocuronium, but increases of cardiac rate and blood pressure with rocuronium were within clinically acceptable values.