Joseph Alex1, Levent Guvendik. 1. Department of Cardiothoracic Surgery, Castle Hill Hospital, Hull, United Kingdom. mrjosephalex@yahoo.co.uk
Abstract
BACKGROUND: To evaluate the efficacy of ventral cardiac denervation as a prophylaxis against post-coronary artery bypass grafting (CABG) atrial fibrillation (AF). METHODS: Seventy consecutive patients who underwent CABG (group A) were compared to 70 consecutive subsequent patients who underwent CABG + ventral cardiac denervation (group B). Both groups were well-matched for age, gender, disease severity, LV function, Euro scores, Parsonnet scores, preoperative beta-blockers, Ca-channel blockers, digoxin, and angiotensin converting enzyme inhibitors. The same cardioplegia, bypass, and operation techniques were used in all cases. Denervation before initiating bypass increased operation time by approximately 5 minutes. Heart rate and rhythm were monitored by continuous telemetry until postoperative day 5 and then 4- hourly until discharge. RESULTS: The cross-clamp time (p = 0.6), bypass time (p = 0.1), number of grafts (p = 0.9), inotrope usage (p = 0.4), reexploration rate (p = 1), postoperative myocardial infarction (none in either group), blood loss (p = 0.7), and length of stay (p = 0.8) were comparable in both groups. There was no significant difference in the incidence of AF; 34% in group A versus 29% in group B (p = 0.3). CONCLUSIONS: Ventral cardiac denervation failed to significantly reduce the incidence of AF following coronary revascularization in our study.
BACKGROUND: To evaluate the efficacy of ventral cardiac denervation as a prophylaxis against post-coronary artery bypass grafting (CABG) atrial fibrillation (AF). METHODS: Seventy consecutive patients who underwent CABG (group A) were compared to 70 consecutive subsequent patients who underwent CABG + ventral cardiac denervation (group B). Both groups were well-matched for age, gender, disease severity, LV function, Euro scores, Parsonnet scores, preoperative beta-blockers, Ca-channel blockers, digoxin, and angiotensin converting enzyme inhibitors. The same cardioplegia, bypass, and operation techniques were used in all cases. Denervation before initiating bypass increased operation time by approximately 5 minutes. Heart rate and rhythm were monitored by continuous telemetry until postoperative day 5 and then 4- hourly until discharge. RESULTS: The cross-clamp time (p = 0.6), bypass time (p = 0.1), number of grafts (p = 0.9), inotrope usage (p = 0.4), reexploration rate (p = 1), postoperative myocardial infarction (none in either group), blood loss (p = 0.7), and length of stay (p = 0.8) were comparable in both groups. There was no significant difference in the incidence of AF; 34% in group A versus 29% in group B (p = 0.3). CONCLUSIONS: Ventral cardiac denervation failed to significantly reduce the incidence of AF following coronary revascularization in our study.
Authors: Malini Madhavan; K L Venkatachalam; Matthew J Swale; Christopher V Desimone; Joseph J Gard; Susan B Johnson; Scott H Suddendorf; Susan B Mikell; Dorothy J Ladewig; Toni Grabinger Nosbush; Andrew J Danielsen; Mark Knudson; Samuel J Asirvatham Journal: Pacing Clin Electrophysiol Date: 2016-03-09 Impact factor: 1.976