Key result
A higher left ventricular ejection fraction was the only independent predictor of Sprint Fidelis 6949 ICD lead fracture (P=0.006), whereas radiographic features did not predict fracture risk.
Why the study?
What are the clinical, procedural, and radiological predictors of Sprint Fidelis 6949 ICD lead fracture?
Population
78 patients with Sprint Fidelis 6949 implantable cardioverter defibrillator leads
Comparison
Clinical, procedural, and radiological features vs Patients without lead fractures (matched controls)
Design
Case-control, Chest radiographs reviewed by an observer blinded to outcomes
Authors
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Higher LVEF may identify patients needing closer Sprint Fidelis surveillance; leaves open prospective validation and mechanisms.
Case-Control (n=78)
No
What are the clinical, procedural, and radiological predictors of Sprint Fidelis 6949 ICD lead fracture?
p-value: p=0.006
Higher LVEF is an independent predictor of Sprint Fidelis 6949 ICD lead fracture, while radiographic features do not predict fracture risk.
Ha et al. (2009) conducted a case-control in Sprint Fidelis 6949 ICD lead fracture (n=78). Clinical, procedural, and radiological features (including higher LVEF) vs. Matched controls without lead fracture was evaluated on Sprint Fidelis 6949 ICD lead fracture (p=0.006). A higher left ventricular ejection fraction was the only independent predictor of Sprint Fidelis 6949 ICD lead fracture (P=0.006), whereas radiographic features did not predict fracture risk.
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