Temporary Mechanical Assist Devices for Acute Cardiogenic Shock

The Heart Failure and Artificial Heart Program serves as a major center for the treatment of patients with acute cardiogenic shock (those who develop heart failure as a result of a heart attack or heart surgery) or acute cardiac viral illness. The program’s specialists use a number of mechanical assist devices as temporary support or as a bridge to long-term therapy to greatly improve recovery and survival in this group of patients.

The ultimate goal of temporary cardiac assist devices is to maintain optimal perfusion of the body’s organs, allow time for recovery and prevent further deterioration of organ function. The devices are used to achieve immediate stabilization and, in many cases, can lead to recovery.

IMPELLA 5.0 and 2.5

The Impella 5.0 is a catheter-based circulatory support system for patients with acute cardiogenic shock. It is placed via a peripheral blood vessel such as the femoral artery to provide the heart with left ventricular support. This means that the pump system can be implanted without opening the chest.

The system, which can also be used after bypass surgery for cardiovascular support, is FDA approved.

The Heart Failure and Artificial Heart Program typically implants the Impella 5.0, which allows up to 5.0 liters/minute in blood flow (OK?), but can also work with patients who have the Impella 2.5, with flow rates up to 2.5 L/min.

AB 5000

AB 5000AB5000 Ventricle. Illustration used with permission of Abiomed.ABIOMED’s AB5000TM Circulatory Support System also provides temporary support in circumstances where the heart has failed, giving the patient’s heart the opportunity to rest and potentially recover. The AB5000 has vacuum-assisted technology and requires only a single console, regardless of condition.

The AB5000 console is designed for patients to be able to leave their hospital room and walk within the hospital or on hospital grounds.

The device is FDA approved and can be used for right-sided heart support, left sided or both. It is placed surgically in the patient.

CentriMag® Ventricular Assist System

The CentriMag® Ventricular Assist System is used in the treatment of cardiogenic shock. It is designed to treat one or both sides of the heart when it is uncertain whether the patient will recover, need a long-term VAD or need to undergo transplantation. The system is attached to the patient through surgery.

The system has no rotating bearings to allow uniform washing of the rotor surface and to minimize blood stagnation and turbulence. It is also designed to permit rotation of the impeller at lower speeds (RPM) to achieve desired flows and to minimize the risk of blood stagnation, turbulence and component failure.

The CentriMag system is FDA approved and can be used for right-sided heart support, left-sided or both.

Centrimag-Motor   Centrimag-Pump
CentriMag® Extracorporeal Blood Pumping System: Primary Console and motor (left) and blood pump (right). Illustrations used with permission of Thoratec.
 Centrimag-Patient
CentriMag® VAS: Patient and Primary Console. Illustration used with permission of Thoratec.