CIS Cardiologist is First in the State to Use New Implantable Defibrillator

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OPELOUSAS- Dr. Siby Ayalloore, cardiologist at Cardiovascular Institute of the South, is the first in Louisiana to implant the VIGILANT™ Cardiac Resynchronization Therapy Defibrillator at Opelousas General Health System.

This new device combines long-lasting battery technology, therapy optimization, and HeartLogic™ Heart Failure Diagnostics to improve heart failure management.  The diagnostic component is proven to provide 70% sensitivity in detecting heart failure events weeks before a patient may need to be hospitalized.  Additionally, the Heart Failure Sensor Suite provides multi-factorial, physiological, patient-specific data, allowing physicians to make the best informed decisions for treating heart failure patients.  The device is also powered by EnduraLife™ Battery Technology, which has nearly two times the usable battery capacity as certain competitive devices.  With this technology, a patient’s device will last approximately ten years before needing a replacement.

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“These new heart failure diagnostics make all the difference for our patients,” explained Dr. Ayalloore.  “This new system takes what we already know and packages it in a way which is easily understood by everyone. This ultimately can lead to better patient outcomes, and it decreases the chances of hospital readmissions.”

To schedule an appointment with CIS in Opelousas, call 337-942-3006 or visit

The VIGILANT™ Cardiac Resynchronization Therapy Defibrillator is manufactured by Boston Scientific.

About Cardiovascular Institute of the South

Founded by Dr. Craig Walker in 1983, Cardiovascular Institute of the South (CIS) is the largest single specialty cardiology practice in Louisiana.  CIS cardiologists represent nearly every specialty in heart and vascular medicine.  CIS is a world-leader in preventing, detecting, and treating cardiovascular disease.  The institute offers a comprehensive heart and vascular program with specialized medical professionals trained in nuclear cardiology, electrophysiology, prevention services, and lipid management, as well as interventional cardiovascular procedures.  CIS is also world-renowned for making significant advancements in the development of non-surgical treatments to treat peripheral arterial disease (PAD). CIS has earned international acclaim as a leader of research, development and education.  With a team of more than 600 dedicated members, CIS provides comprehensive cardiovascular care to 15 communities in south Louisiana, with a location in Mississippi as well.  CIS consistently positions itself at the forefront of technology by providing the most up-to-date technology coupled with compassionate care.  This mission has guided the institute for more than 34 years of service to our communities.  For more information about CIS, call 1-800-425-2565 or visit

About Opelousas General Health System
Since 1957, Opelousas General Health System has been dedicated to the provision of quality health care through its strong commitment and high standards.  Central to the success of OGHS's commitment for excellence is the presence of an outstanding and highly qualified staff of physicians, nurses, technologists and other personnel who provide professional treatment in a caring environment.  Serving as the region's referral medical center, OGHS is a 225-bed, full service medical center, and the area's most comprehensive community health care facility offering a wide range of medical specialties and state-of-the-art technology. Visit us at



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CIS Staff

Written by CIS Staff