Supraventricular tachyarrythmia prophylaxis after coronary artery surgery in chronic obstructive pulmonary disease patients (early amiodarone prophylaxis trial)

Erkan Kuralay, Faruk Cingöz, Selim Kiliç, Cengiz Bolcal, Celalettin Günay, Ufuk Demirkiliç, Harun Tatar
European Journal of Cardio-thoracic Surgery 2004, 25 (2): 224-30

OBJECTIVES: Supraventricular tachyarrhythmias (SVT) is common after coronary artery bypass grafting in chronic obstructive pulmonary disease (COPD). Preoperative FEV(1) is the major predetermining factor of mortality, morbidity and SVT.

METHODS: Patients were divided into two groups according to their preoperative FEV(1) values. FEV(1) is <75% of predicted value in group 1 (no. 200), and >/=75% of predicted value in group 2 (no. 100). Group 1 is divided into two subgroups. SVT prophylaxis was not done in A subgroup (no. 100) whereas arrhythmia prophylaxis was done with amiodarone in all B subgroups (no. 100) in the early postoperative period.

RESULTS: Atrial fibrillation developed in 28 patients in group 1A, whereas it developed in 12 in group 1B (P=0.005). Atrial flutter developed in 10 patients in group 1A but in 3 patients in group 1B (P=0.045). Multifocal atrial tachycardia developed in 13 patients in group 1A and in 4 in group 1B (P=0.022). Multivariate analysis identified ejection fraction (P<0.002, odds ratio (OR) 0.93), inotropy requirement (P<0.001, OR 3.98) amiodarone (P<0.001, OR 0.18), and FEV(1)<75% of predicted value (P<0.048, OR 1.84) as predictor of SVT. There were statistically significant differences between A and B subgroups of group 1 for hospital (P<0.001) and intensive care unit (ICU) stay (P<0.001). There was also statistically significant difference between groups 1A and 2 comparison for ICU (P<0.001; 6.4+/-3.4 versus 1.4+/-0.6 days) and hospital stay (P<0.001; 17.6+/-8.2 versus 6.9+/-0.6 days).

CONCLUSIONS: Early prophylactic amiodarone not only significantly reduces SVT but also reduces SVT-related hospital and ICU stay. We strongly recommend prophylactic early use of amiodarone in COPD patients.

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