FDA Finds Safety Risks in Boston Scientific Heart Devices

When medical devices designed to save lives instead put patients at risk, the consequences can be devastating. That’s the troubling reality emerging from the U.S. Food and Drug Administration’s (FDA) recent warnings about two heart devices from Boston Scientific.

According to reporting by U.S. News and the Associated Press (Aug. 6, 2025), both the Endotak Reliance defibrillator leads and the Watchman left atrial appendage implant have been tied to serious injuries and deaths. For families who rely on these devices for critical heart care, the news is alarming — and it underscores the importance of strong oversight, transparency, and accountability in the medical device industry.

At Ketterer, Browne & Davani (KBD) Attorneys, we’ve long investigated the dangers of defective medical (heart) devices and supported families harmed by corporate negligence. The Boston Scientific situation is just the latest example of why legal advocacy is essential to protecting patients.

The Devices at the Center of the FDA’s Warning

Endotak Reliance Defibrillator Leads

Defibrillators are meant to save lives by delivering electrical shocks to correct deadly heart rhythms. The Endotak Reliance leads — thin wires connecting the defibrillator to a patient’s heart — are supposed to ensure those shocks are delivered reliably.

But according to the FDA, the leads can become calcified, interfering with their ability to work properly. The results are chilling: shocks may not fire when they’re needed most, leaving patients vulnerable during life-threatening arrhythmias.

Boston Scientific reported 386 serious injuries and 16 deaths associated with the leads. Some deaths stemmed from device failure itself, while others occurred during attempts to surgically remove the faulty leads — a procedure that carries its own risks.

The Watchman Implant

The Watchman implant is designed to prevent blood clots in patients with atrial fibrillation, reducing the risk of stroke. Implanted in the heart’s left atrial appendage, it provides an alternative to long-term use of blood thinners.

However, the FDA’s safety communication highlighted concerns about anesthesia management during implantation. Inadequate oversight of anesthesia levels can cause dangerous blockages in the bloodstream. Boston Scientific has reported 120 serious injuries and 17 deaths linked to this device.

For a product marketed as a safer, life-enhancing alternative, these numbers are sobering.

Why These Findings Matter

When medical devices fail, the stakes couldn’t be higher. Patients who undergo these procedures often do so to protect themselves from fatal heart conditions. Discovering that the very devices meant to safeguard their lives can instead endanger them is not only heartbreaking but a betrayal of trust.

The situation also raises broader questions:

• Were patients fully informed of the risks?

• Did Boston Scientific act quickly enough in reporting problems to the FDA?

• Are regulators doing enough to protect patients before harm occurs?

These questions are not just theoretical. They directly affect thousands of families who trusted these devices — and they echo patterns KBD Attorneys has seen in many other defective medical device cases.

Boston Scientific’s Response

Boston Scientific has acknowledged the FDA’s concerns but has downplayed the risks in some investor calls. The company insists it is working with regulators to address safety issues.

However, families who have lost loved ones or suffered life-altering complications may feel that isn’t enough. Corrective action after the fact cannot undo preventable harm. And too often, device manufacturers emphasize protecting their bottom line rather than prioritizing patient safety.

KBD Attorneys and Medical Device Accountability

At KBD, we have a long track record of representing patients harmed by unsafe and defective medical products. We’ve written extensively about:

• Boston Scientific’s Watchman device and earlier FDA safety alerts.

• Other Boston Scientific recalls, including access systems and heart implants.

• The broader risks of AI-enabled and high-risk medical devices rushed to market without sufficient testing.

Our attorneys are currently involved in high-stakes medical device litigation, including leadership in national cases like the BioZorb breast cancer implant lawsuits. In fact, Robert Price, a partner at KBD, serves as Chair of the Science and Experts Committee in the Plaintiffs’ Executive Committee for BioZorb litigation — a role that positions our firm at the forefront of holding device manufacturers accountable.

These experiences give us deep insight into how device companies operate, how regulatory gaps can harm patients, and what it takes to win justice for victims.

What Families Should Do

If you or a loved one has one of these Boston Scientific devices implanted, it’s important not to panic but also not to ignore the risks. Here are some steps to consider:

1. Consult your doctor — Do not stop treatment or request removal on your own. Talk to your physician about the FDA’s warnings and whether monitoring or intervention is needed.

2. Document your experiences — Keep records of symptoms, complications, and communications with medical providers.

3. Stay informed — The FDA may issue additional safety updates as more information emerges.

4. Seek legal guidance — If you’ve suffered harm related to a defective device, legal action may be the only way to hold manufacturers accountable and recover compensation for medical costs, pain, and losses.

KBD’s Commitment to Patient Safety

Medical devices can save lives, but when corporations cut corners or regulators fail to act quickly, patients pay the price. At KBD, we’re committed to ensuring families aren’t left alone to deal with the aftermath of defective products.

We’ve built a dedicated practice area and online resource page focused on defective medical devices and specifically defective heart devices. There, we provide updates on recalls, FDA warnings, and litigation involving companies like Boston Scientific. We’ve written in detail about the Watchman device, about dangerous surgical implants, and about systemic failures in the approval process.

By staying on top of these developments, we make sure our clients — and the public — know their rights and options.

Conclusion

The FDA’s warnings about Boston Scientific’s heart devices are a stark reminder of how fragile patient safety can be when corporations prioritize profit over care. For families relying on these devices, the risks are real and deeply personal.

At KBD Attorneys, we believe accountability matters. We’ve pursued justice in cases involving Boston Scientific before, and we’ll continue to fight for patients harmed by defective medical devices of all kinds. If you or a loved one has been impacted by a dangerous device, contact us today. You don’t have to face this battle alone.

Source:
Associated Press / U.S. News – FDA Flags Problems With Two Boston Scientific Heart Devices Tied to Injuries and Deaths (Aug. 6, 2025)