Is there an age limit for heart transplant?

Yes and no: Criteria for transplantation, including age, vary by transplant center. Most centers don't have an absolute age cutoff, but instead consider a patient's "physiologic' age. Having said that, transplants are relatively uncommon in those over 65, due to multiple co-morbidities (other illnesses), increased risk of bad outcomes after transplant in older patients, and limited supply of donor hearts.

No: Candidacy for organ transplantation is assessed on a case by case basis. Age is only a general guideline as it's often, but not always, a reflection of the overall physiologic health of a person. A 70 year old with cardiomyopathy and no other medical illness, for example, is a better heart tx candidate than a 50 year old w long standing diabete, peripheral vascular disease & renal failure.

Not precisely: Recipient selection involves the overall condition of the patient, not just the chronological age. About 14% (nearly 400) heart transplants in the US last year were done in recipients over age 65.