Key result
Among patients with chronic second-degree AV nodal block, those with organic heart disease had higher mortality (43.2%) compared to those without organic heart disease (10.5%).
Cohort (n=56)
Absolute Event Rate: 43.2% vs 10.5%
Chronic second-degree AV nodal block has a benign course in patients without organic heart disease, whereas prognosis is poor and driven by underlying disease in those with organic heart disease.
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Supports etiology-based prognosis in chronic second-degree AV nodal block; leaves open whether pacing improves outcomes without organic heart disease.
Strasberg et al. (1981) conducted a cohort in chronic second-degree atrioventricular nodal block (n=56). Organic heart disease vs. No organic heart disease was evaluated on Mortality. Among patients with chronic second-degree AV nodal block, those with organic heart disease had higher mortality (43.2%) compared to those without organic heart disease (10.5%).
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