Key result
Pacemaker implantation in patients with chronic second degree heart block was associated with significantly higher five-year survival compared to unpaced patients (78% vs 41%).
Why the study?
Does pacemaker implantation improve survival in patients with chronic second-degree heart block?
Population
214 patients with chronic second-degree heart block from the Devon Heart Block and Bradycardia Survey.
Comparison
Pacemaker implantation (n=103). vs No pacemaker implantation (unpaced, n=111).
Design
Cohort
Follow-up
5 years
Authors
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May support pacing in chronic second-degree block; leaves open need for RCTs to confirm survival benefit.
Cohort (n=214)
Does pacemaker implantation improve survival in patients with chronic second-degree heart block?
Absolute Event Rate: 78% vs 41%
Pacemaker implantation significantly improves survival in patients with chronic second-degree heart block, including Mobitz type I, suggesting they should be considered for pacing on similar criteria to higher degrees of block.
Shaw et al. (1985) conducted a cohort in Chronic second degree heart block (n=214). Pacemaker implantation vs. Unpaced patients was evaluated on Five year survival. Pacemaker implantation in patients with chronic second degree heart block was associated with significantly higher five-year survival compared to unpaced patients (78% vs 41%).
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