St Jude Medical has introduced the Unify Quadra cardiac resynchronisation therapy defibrillator (CRT-D) in Japan, as a treatment for heart failure.
The Unify Quadra CRT-D, which works with the company’s Quartet left ventricular pacing lead, features four electrodes to provide physicians with more pacing options and the ability to pace closer to the base of the left ventricle, enabling better patient outcomes.
The quadripolar pacing electrodes also facilitate physicians to pace around scar tissue found in the heart and select alternative pacing sites for implanted patients, to avoid unintentional stimulation of the diaphragm from pacing the phrenic nerve, resulting in hiccup-like symptoms.
The Unify Quadra CRT-D utilises the new DF4 and IS4 connectors to streamline the procedure, according to the company.
The DF4 connector reduces the number of connections between the defibrillation lead and the device, while the IS4 connector enables four electrodes to be used on the Quartet left ventricular pacing lead, during a connection to a single standard connector on the Unify Quadra device.
Morio Shoda, Tokyo Women’s Medical University cardiology department associate professor, said the Unify Quadra is a technological advance for patients who need cardiac resynchronisation therapy.
"With quadripolar technology, I have more pacing options available, which improves the probability for successful response to the therapy," Shoda added.
St Jude Medical president William Phillips said the benefits of quadripolar pacing have been demonstrated by implanters around the world and reported in a large number of published studies.
"We believe that this small and innovative CRT system has the potential to redefine the standard of care in resynchronization therapy for heart failure patients," Phillips added.