FDA OKs Impulse Dynamics Heart Device

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FDA has approved an Impulse Dynamics PMA for the Optimizer Smart system for treating patients with chronic, moderate-to-severe heart failure who are not suited for treatment with other heart failure devices such as cardiac resynchronization therapy to restore a normal timing pattern of the heartbeat. The device comprises several components, including an implantable pulse generator, battery charger, programmer and software. “The pulse generator is implanted under the skin in the upper left or right area of the chest and connected to three leads that are implanted in the heart,” FDA says. “After the device is implanted, a physician tests and programs the device, which delivers electrical impulses to the heart during regular heartbeats to help improve the heart's squeezing capability.”

 

Approval is based on data from two randomized clinical trials involving 389 patients with moderate-to-severe heart failure. All patients received optimal medical therapy and 191 patients also received an Optimizer Smart implant. “Patients receiving the implant showed improvements in the distance they were able to walk in six-minute walking tests and improvements on standard assessments to measure heart failure symptoms, such as how much the symptoms affect a patient's quality of life and how much the symptoms impede daily physical activities compared to those who received only medical therapy,” FDA says.

 

The device is indicated to improve six-minute hall walk distance, quality of life and functional status of certain heart failure patients. Potential complications associated with the device include infection, bleeding, worsened heart failure or problems with the device itself such as a dislodgement or lead fracture.

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