Key result
Among patients with Riata defibrillator leads, the prevalence of conductor externalization was 26.7%, with large diameter 8 Fr leads being a significant predictor of failure (OR 30.68) compared to 7 Fr leads.
Cross-Sectional (n=90)
No
Odds Ratio: 30.68
Absolute Event Rate: 44.4% vs 0%
p-value: p=0.001
High resolution fluoroscopy reveals a high prevalence (26.7%) of conductor externalization in 8 Fr Riata defibrillator leads, often accompanied by electrical failure.
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May support selective fluoroscopy for 8 Fr Riata leads; leaves open impact on outcomes or management.
Singh et al. (2014) conducted a cross-sectional in Implantable cardioverter-defibrillator (ICD) patients with Riata leads (n=90). 8 Fr Riata leads vs. 7 Fr Riata leads was evaluated on Lead externalization (OR 30.68, 95% CI 4.95-∞, p=0.001). Among patients with Riata defibrillator leads, the prevalence of conductor externalization was 26.7%, with large diameter 8 Fr leads being a significant predictor of failure (OR 30.68) compared to 7 Fr leads.
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