“…ϭ sudden cardiac death VF ϭ ventricular fibrillation VT ϭ ventricular tachycardia from the meta-analysis: five studies were not prospective (12,16,19,35,38), five studies did not use primary data (21,22,27,29,34), two studies assessed pacing-induced T-wave alternans (5,25), one study had less than six months of follow-up (18), and one study did not provide enough primary data (31). An attempt was made to contact the author of the study that did not provide enough data (31).…”