Medtronic HeartWare ‘Dear Doctor’ Letter
Medtronic sent an 11/29 “Dear Doctor” letter with important safety information related to the potential hardening of the controller driveline cover of its HeartWare Ventricular Assist system. “Over time,” the letter says, “the driveline cover may become hardened, creating difficulty or an inability to slide the cover back to access the driveline to controller connector. Access to the driveline connector may be delayed, which may result in patient harm from a prolonged pump stop, if an urgent driveline connection or controller issue needs to be addressed.”
The letter says the issue is due to plasticizer loss and may be accelerated by environmental factors.
Medtronic reports that between 1/3/2017 and 9/15/2022 it received 33 complaints reporting a hardened and/or stuck driveline cover. It says that in the complaints, the issue had occurred after multiple years of use. No critical harms or deaths were attributed to the issue. The company provided patient management recommendations.