Consultant - Heart & Lung Transplant and Vascular Surgery, Artemis Hospitals, Gurgaon
Part 3 of 10 in Masterclass on Heart Transplant in India for Foreign Nationals
From Medication to Transplant: The Heart Failure Treatment Ladder
August 27, 2026
Heart failure does not arrive at transplant in one step. Dr. Purkayastha laid out the progression his team actually follows, and it is a ladder with clear thresholds at each rung rather than a single clinical judgment call.
The early rungs: medication, then a defibrillator
The primary therapy for heart failure is medical management, continued until ejection fraction falls below roughly 20%. At that point, the team starts thinking about device therapy, beginning with an AICD, an implantable cardioverter defibrillator. As the heart continues to enlarge and the patient becomes progressively more breathless, reaching NYHA class 4 or INTERMACS class 3 to 4, the next decision point arrives.
ECMO or a ventricular assist device
From here, patients either need temporary VA-ECMO support while a decision is made, or, where a right heart catheterisation and a right heart work-up show the right side of the heart is holding up reasonably well, they can go straight to a ventricular assist device. An LVAD is a small pump implanted inside the body and controlled by a battery the patient wears through the day, supported by two battery packs that between them carry roughly 24 hours of charge and need topping up while the patient sleeps or rests. The only firm lifestyle restriction is swimming or other underwater activity. Beyond that, patients on LVADs have gone to the gym and run half marathons.
Four generations of pumps
The first generation of LVADs were the Thoratec devices and the original HeartMate. The second generation, the HeartMate 2 and the HeartWare, followed. The third generation moved to larger magnetically levitated pumps, and the current 3-plus generation, led by the HeartMate 3, has shrunk that same magnetic-levitation design down to something close to the size of a palm, weighing about 94 grams without its housing and under 150 grams all in, with a markedly lower risk of clot formation than any earlier design.
Batteries that outlast their own rating
Lithium-ion battery packs are rated for about 24 hours, but Dr. Purkayastha noted patients who have gone camping and been off the grid, away from any charging point, for as long as 36 hours with the device continuing to run without issue. It is this combination, a smaller implant and a more forgiving battery, that has done more than anything else to turn the LVAD from a stopgap into something patients can genuinely live on for years.
This guide is based on a live Jivo Masterclass — Dr. Biswarup Purkayastha taught doctors across Africa on October 5, 2025.
FROM THE LIVE Q&A
Jivo Doctor Partner (referred to in the transcript as "Diva"; exact spelling unclear)
How many days does LVAD admission and workup actually take?
Dr. Biswarup Purkayastha
Roughly a week for the core workup. That includes a right heart catheterisation, with the numbers reviewed at a transplant or VAD meeting or heart failure clinic before we make a call. To meet regulatory requirements we also need a coronary angiogram and a CT scan of the chest, which sizes the device and the pocket it sits in.
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Frequently Asked Questions
What are the financial and logistical implications of staying in India while waiting for a transplant?▼
A heart failure patient waiting here typically needs a hospital visit about once a fortnight, and hospital and medication expenses run close to $1,500 a month. Across a typical 12 to 14 month wait, that adds up to roughly $20,000 in pre-transplant costs, before the transplant itself.
What does the heart transplant surgery itself cost a foreign national, given the added legal requirements?▼
Just under $50,000 in total. Our package for a foreign national is $45,000 for the transplant plus $5,500 for the pre-transplant workup.
What factors would disqualify a patient from LVAD candidacy, so we can screen locally and avoid sending someone to India who won't qualify?▼
The single most important test is a right heart catheterisation. I want pulmonary vascular resistance under five Wood units, or at least reactive to pulmonary vasodilators, along with the transpulmonary gradient, the pulmonary arterial pressure index against body surface area, and the oxygen step up. Patients with intractable arrhythmias, or more than moderate tricuspid regurgitation with right heart failure symptoms like congestive hepatopathy, are not good candidates. But if the right heart is intact and the failure is confined to the left side from ischaemic disease, that patient is still a strong candidate for an LVAD.
Given that Indian law prioritises Indian citizens for organs, how does that affect a foreign national's chances?▼
The law is unambiguous that an available organ goes to an Indian citizen first. But there's a specific exception for in-house patients: if an organ becomes available at the same hospital where a foreign national is already admitted, and the regional transplant organisation refuses it or nobody from that region can retrieve it in time, that in-house patient, even if foreign, moves to the top of the list. The hospital only has to inform NOTTO directly, rather than waiting on a no-objection certificate from every regional organisation in the country, a process that can otherwise cost the hours that make an organ unusable.
A heart transplant candidate is already medically complex, and the wait can run to a year. How do patients get through that uncertainty if their condition worsens?▼
Temporary VA-ECMO, or reassessing the patient for an LVAD, buys the time we need. The durability of these devices has changed the calculation: an LVAD that used to be a five-year solution five years ago is now good for a decade or more.
At what point does heart failure move from medication to device therapy?▼
Medical management continues until ejection fraction falls below roughly 20%. At that point the team starts considering an AICD, an implantable cardioverter defibrillator, and as the patient's heart enlarges and breathlessness worsens toward NYHA class 4, the next decision is between temporary VA-ECMO support or a ventricular assist device.
What lifestyle restrictions come with living on an LVAD?▼
The only firm restriction is swimming or other underwater activity. Beyond that, patients on LVADs have gone to the gym and run half marathons.
How has LVAD technology changed across its four generations?▼
The first generation were the Thoratec devices and the original HeartMate. The second generation brought the HeartMate 2 and the HeartWare. The third generation moved to larger magnetically levitated pumps, and the current generation, led by the HeartMate 3, has shrunk that same design down to close to the size of a palm, weighing under 150 grams all in, with a markedly lower risk of clot formation.
How long do LVAD batteries actually last between charges?▼
Lithium-ion battery packs are rated for about 24 hours, though patients have gone camping and stayed off the grid for as long as 36 hours with the device continuing to run without issue.
In This Series: Masterclass on Heart Transplant in India for Foreign Nationals
- 1.Heart Transplant in India for Foreign Nationals
- 2.How India Allocates Donor Hearts to Foreign Nationals
- 3.From Medication to Transplant: The Heart Failure Treatment Ladder
- 4.Three Ways an LVAD Buys Time: Bridge to Transplant, Bridge to Candidacy, and Destination Therapy
- 5.Matching a Foreign Patient to a Donor Heart: What Actually Determines the Wait
- 6.What a Heart Transplant Actually Costs a Foreign Patient in India
- 7.When to Refer: Recognising the Point of No Return in Heart Failure
- 8.Staying Alive on the List: Bridging a Foreign Patient Through a Year-Long Wait
- 9.The Next Generation of Heart Pumps: Jarvik, HeartMate 3, and an Indian LVAD in Development
- 10.LVAD Candidacy Criteria: What Referring Doctors Should Test For Before Sending a Patient to India