Max Hospital on Thursday said four people, who had an end-stage heart failure and were implanted with an artificial pump by the hospital, are living healthy lives even after five years of the implant.

These patients do not have a pulse, heart-beat, or measurable blood pressure, yet they are able to do everything that a healthy person can as their blood flow has been fully restored, the hospital said.

"The pump maintains a continuous flow of blood and hence no pulse. It draws blood from the heart and pumps into the body," said Kewal Krishan, Director, Heart Transplant & Ventricular Assist Devices, Max Super Speciality Hospital, Saket.

"Left Ventricular Assist Device [LVAD] is a device that adds 13 to 15 years to the life of people facing imminent heart failure. It boosts functions of the heart and is used either as a temporary measure till a heart transplant can be conducted, or as a destination therapy where the patient lives with the device permanently as they are unfit for a heart transplant. LVAD enables patients to live a normal life even after end-stage heart failure," he added.