# Major Recall Alert: Advisory Issued for ENDOTAK RELIANCE G, ENDOTAK RELIANCE SG, RELIANCE 4-FRONT Defibrillation Leads
Boston Scientific has issued a critical advisory concerning certain models from its RELIANCE family of defibrillation leads. The affected models – ENDOTAK RELIANCE G, ENDOTAK RELIANCE SG, and RELIANCE 4-FRONT – utilized ePTFE material that may lead to complications over time. While the product is not being officially recalled, it is essential for patients and healthcare providers to understand the implications this advisory carries.
This advisory highlights the potential risk of calcification due to the ePTFE material covering the shocking coils. Such calcification can cause a gradual increase in Shock Lead Impedance (SLI), which may interfere with the defibrillator's ability to function effectively. Stay informed to protect your health or that of a loved one.
### Why This Recall Is Important
Boston Scientific has taken significant steps to ensure patient safety by disclosing this issue, even though the affected ePTFE leads are no longer manufactured or distributed. Here's why this advisory matters:
- **Potential Calcification Risk**: The ePTFE material creates a matrix that can promote calcification, a biological wound response, in some patients.
- **Device Malfunction Over Time**: Rising Shock Lead Impedance (SLI) could impact the defibrillation lead's ability to deliver life-saving shocks.
- **Focus on Safety**: Current defibrillation leads distributed by Boston Scientific no longer use the ePTFE covering, emphasizing enhanced safety in newer designs.
The proactive advisory ensures patients and healthcare providers are aware of the issue and can take preventative measures to manage risks effectively.
### Details of the Recall
Here’s what you need to know:
- **Brand & Models Affected**:
- ENDOTAK RELIANCE G
- ENDOTAK RELIANCE SG
- RELIANCE 4-FRONT
- **Issue**: The ePTFE material covering the shock coils may lead to calcification, impacting device efficiency over time.
- **Manufacturing Status**: Boston Scientific no longer manufactures or distributes ePTFE models. Current products are non-ePTFE and safe from this risk.
- **Start Date of Advisory**: July 24, 2025
For further information, visit the official recall notice: [Health Canada Recall Advisory](https://recalls-rappels.canada.ca/en/alert-recall/reliance-defibrillation-leads).
### What You Should Do
If you or a loved one has implanted defibrillation leads from the ENDOTAK RELIANCE G, ENDOTAK RELIANCE SG, or RELIANCE 4-FRONT models, consider the following steps:
- **Monitor Health**: Consult your healthcare provider to evaluate device performance. Regular follow-ups can detect any changes in Shock Lead Impedance (SLI).
- **Stay Informed**: Ensure you have up-to-date information about your device's condition and functionality.
- **Discuss Options**: If there are signs of rising SLI, inquire about replacement or alternative leads with your medical professional.
Remember, this advisory does not mean the products are being recalled immediately, but keeping proactive communication with your healthcare provider is crucial for your safety.
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By staying informed, you can make the best decisions for your health and well-being. For more details on this advisory, check out the official source: [Health Canada Recall Advisory](https://recalls-rappels.canada.ca/en/alert-recall/reliance-defibrillation-leads).