Still researching: "Four patients in the paced group and 2 in the unpaced group died, yielding 3-year actuarial survival probabilities of 78% and 85%, respectively. It is concluded that ventricular pauses of 3 seconds or longer are uncommon, these pauses usually do not cause symptoms, and the presence of these pauses does not necessarily portend a poor prognosis or the need for pacing in asymptomatic patients." Significance of ventricular pauses of three seconds or more detected on twenty-four-hour Holter recordings - PubMed