The FDA posted an advisory for health care professionals regarding a “potential for differences” between men and women in connection with the use of left atrial appendage (LAA) closure devices. The agency said that differences in procedural outcomes as described in a new medical journal article included a procedure-associated death rate of 0.3% among women undergoing the procedure, triple the rate of 0.1% in men.
Abbott Laboratories received FDA approval for its Amplatzer Amulet left atrial appendage occluder to treat people with atrial fibrillation who are at risk of ischemic stroke about a month earlier than generally expected, given the backlog at the FDA. The dual-closure device closes the left atrial appendage during the procedure, reducing the risk of blood clots immediately and eliminating the need for blood thinners both during the healing process and longer term.
Startup Conformal Medical Inc. has reeled in $85 million in a series C round to support a U.S. pivotal trial of its CLAAS technology, a device designed to seal off the heart’s left atrial appendage (LAA) to reduce the risk of stroke in patients with atrial fibrillation. The financing included participation from new investors Fidelity Management & Research Company LLC and an undisclosed strategic investor.
The Watchman left atrial appendage device, distributed by Marlborough, Mass.-based Boston Scientific Corp., holds a unique place in the annals of med tech regulation, but 50-month data from two registries show a lower rate of hemorrhagic stroke than previously reported for the device.
