Cuban Marathon Runner in Miami Lives Thanks to a Heart Transplant After Rare Myocarditis Diagnosis

Luis Peñate, a 35-year-old Cuban marathon enthusiast living in Miami, narrowly escaped death within a mere two months after being diagnosed with a severe form of heart inflammation. His survival was only possible through a heart transplant at the Cleveland Clinic Weston Hospital in Broward.

The ordeal began in August 2025 when Peñate contracted hand-foot-and-mouth disease, followed by COVID-19. What initially appeared as a typical recovery turned into a critical situation when he was assessed at a Miami hospital and diagnosed with myocarditis, an inflammation of the heart muscle. His condition didn't improve.

"I was a very healthy person," Peñate recalled in a report by the Cleveland Clinic. "I ran marathons, ate well, slept well, worked hard. Then everything changed."

His father, a physician, sought advice from cardiologist colleagues. The unanimous recommendation was to transfer him to Cleveland Clinic Weston Hospital.

By the time he arrived, Peñate's heart function had plummeted to 10-15% and continued to decline to a mere 5%. The medical team immediately connected him to ECMO—extracorporeal membrane oxygenation—a temporary life support system that takes over heart and lung functions while determining the next steps.

Further evaluations confirmed a diagnosis of giant cell myocarditis, an exceptionally rare and aggressive variant with a median survival of just three months without treatment from symptom onset.

During his hospital stay, Peñate was resuscitated three times. On one occasion, he experienced what he described to Telemundo 51 as an out-of-body experience: "I literally saw myself from above, went somewhere else, and saw what I believe is God."

With his heart unable to recover, doctors placed him at the top of the heart transplant waiting list. The uncertainty of waiting was, in his words, the hardest part of the process.

"You don't know if it's going to be today, tomorrow, or if your body can hold out," he said. "That was the toughest part: the unknown."

He ultimately received the transplant. "The operation was extremely successful," Peñate stated, expressing immense gratitude to the Cleveland Clinic staff, where "everyone was incredible to me."

Now, this business owner, husband, and father of three has regained about 90% of his usual activity level: running, playing basketball, and spending time with his family. Yet, the experience profoundly altered his perspective on life.

"I used to go 100 miles per hour all the time," he reflected. "Now, I think things through a bit more. Time is very, very precious to me."

Aware of his second chance, thanks to a family who, possibly on the worst day of their lives, agreed to donate their deceased son's heart, Peñate’s first action after leaving the hospital was to register as an organ donor.

His story is part of a broader narrative of Cuban residents in Miami requiring organ transplants in Florida over recent years. In December 2025, Alejandro Cuevas, a 36-year-old Cuban, underwent a multivisceral transplant of five organs at Jackson Memorial Hospital.

Florida residents can register as organ donors at DonateLifeFlorida.org or when renewing their driver's license—a gesture that, as Peñate's story illustrates, can mean the difference between life and death for someone else.