Prevalence and predictor factors of severe venous obstruction after cardiovascular electronic device implantation
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Summary
This summary is machine-generated.Severe venous obstruction in patients with implantable devices affects 11.4% and is often asymptomatic. Secondary prevention of sudden cardiac death and having three leads are key predictors of this condition.
Area Of Science
- Cardiology
- Vascular Medicine
- Medical Devices
Background
- Venous obstruction is a known complication of implantable electronic devices.
- Limited data exists on predisposing factors for venous obstruction in patients with these devices.
Purpose Of The Study
- To determine the prevalence of severe venous obstruction in patients with implantable devices.
- To identify factors that predict severe venous obstruction.
Main Methods
- 184 patients with implantable devices underwent venography.
- Vessel obstruction was graded: occlusion, severe (>90% narrowing), or mild-moderate (50-90% narrowing).
- Logistic regression analysis identified predictors of severe obstruction.
Main Results
- Severe venous obstruction/occlusion prevalence was 11.4% and was asymptomatic in all cases.
- Patients with severe obstruction were more likely to have secondary prevention of sudden cardiac death as an indication for their device (P=0.004) and to have three leads (P=0.03).
- Secondary prevention indication (OR 7.1) and three leads (OR 8.5) were significant predictors of severe obstruction.
Conclusions
- Severe venous obstruction is not uncommon in patients with implantable devices and can be asymptomatic.
- The presence of three leads and the indication for secondary prevention of sudden cardiac death are associated with severe venous obstruction.