Members of the surgical team show the pig heart for transplant into patient.
Members of the surgical team show the pig heart for transplant into patient.

Source: University of Maryland School of Medicine

News • Xenotransplant

Surgeons transplant pig heart into human patient

University of Maryland School of Medicine faculty scientists and clinicians perform historic first successful transplant of porcine heart into adult auman with end-stage heart disease.

In a first-of-its-kind surgery, a 57-year-old patient with terminal heart disease received a successful transplant of a genetically-modified pig heart and is still doing well three days later. It was the only currently available option for the patient. The historic surgery was conducted by University of Maryland School of Medicine (UMSOM) faculty at the University of Maryland Medical Center (UMMC), together known as the University of Maryland Medicine.

This organ transplant demonstrated for the first time that a genetically-modified animal heart can function like a human heart without immediate rejection by the body. The patient, David Bennett, a Maryland resident, is being carefully monitored over the next days and weeks to determine whether the transplant provides lifesaving benefits. He had been deemed ineligible for a conventional heart transplant at UMMC as well as at several other leading transplant centers that reviewed his medical records.

“It was either die or do this transplant. I want to live. I know it’s a shot in the dark, but it’s my last choice,” said Mr. Bennett, the patient, a day before the surgery was conducted. He had been hospitalized and bedridden for the past few months. “I look forward to getting out of bed after I recover.”

Bartley P. Griffith, MD, (l) and Muhammad M. Mohiuddin, MD (r)
Bartley P. Griffith, MD, (l) and Muhammad M. Mohiuddin, MD (r)

Source: University of Maryland Medical Center

The U.S. Food and Drug Administration granted emergency authorization for the surgery on New Year’s Eve through its expanded access (compassionate use) provision. It is used when an experimental medical product, in this case the genetically-modified pig’s heart, is the only option available for a patient faced with a serious or life-threatening medical condition. The authorization to proceed was granted in the hope of saving the patient’s life.

“This was a breakthrough surgery and brings us one step closer to solving the organ shortage crisis. There are simply not enough donor human hearts available to meet the long list of potential recipients,” said Bartley P. Griffith, MD, who surgically transplanted the pig heart into the patient. Dr. Griffith is the Thomas E. and Alice Marie Hales Distinguished Professor in Transplant Surgery at UMSOM. “We are proceeding cautiously, but we are also optimistic that this first-in-the-world surgery will provide an important new option for patients in the future.”

Considered one of the world’s foremost experts on transplanting animal organs, known as xenotransplantation, Muhammad M. Mohiuddin, MD, Professor of Surgery at UMSOM, joined the UMSOM faculty five years ago and established the Cardiac Xenotransplantation Program with Dr. Griffith. Dr. Mohiuddin serves as the program’s Scientific/Program Director and Dr. Griffith as its Clinical Director.

“This is the culmination of years of highly complicated research to hone this technique in animals with survival times that have reached beyond nine months. The FDA used our data and data on the experimental pig to authorize the transplant in an end-stage heart disease patient who had no other treatment options,” said Dr. Mohiuddin. “The successful procedure provided valuable information to help the medical community improve this potentially life-saving method in future patients.”

Recommended article

About 110,000 Americans are currently waiting for an organ transplant, and more than 6,000 patients die each year before getting one, according to the federal government’s organdonor.gov. could potentially save thousands of lives but does carry a unique set of risks, including the possibility of triggering a dangerous immune response. These responses can trigger an immediate rejection of the organ with a potentially deadly outcome to the patient.

Xenotransplants were first tried in the 1980s, but were largely abandoned after the famous case of Stephanie Fae Beauclair (known as Baby Fae) at Loma Linda University in California. The infant, born with a fatal heart condition, received a baboon heart transplant and died within a month of the procedure due to the immune system’s rejection of the foreign heart. However, for many years, pig heart valves have been used successfully for replacing valves in humans.

Source: University of Maryland Medical Center

12.01.2022

Read all latest stories

Related articles

Photo

News • Donation after cardiac death

'Heart in a box' technology gives hope to transplant patients

A new heart transplant technique, which allows surgeons to transplant donor hearts that have stopped beating after death, is reducing waiting lists for patients in Australia and potentially around…

Photo

Article • Surgery

Transplants – a much neglected topic

A small report in the press prompted examination of a much neglected topic. The report read ‘Heart Centre at University Hospital no longer carries out transplants’, and referred to the University…

Photo

News • Child heart transplants

3D image may provide better size match

A new 3D computer modeling system may significantly improve a surgeon's ability to select the best sized donor heart for children receiving heart transplants, according to research presented at the…

Related products

Villa Sistemi Medicali – Arcovis 3000 S / R

Surgical II-C-Arms

Villa Sistemi Medicali – Arcovis 3000 S / R

VILLA SISTEMI MEDICALI s.p.a.
Ziehm – Vision R

Surgical II-C-Arms

Ziehm – Vision R

Ziehm Imaging GmbH
Alsachim – Dosimyco immunosupressant reagent kit (RUO)

Clinical Chemistry

Alsachim – Dosimyco immunosupressant reagent kit (RUO)

Alsachim, a Shimadzu Group Company
Canon – Alphenix Biplane High Definition Detector

Bi-Plane

Canon – Alphenix Biplane High Definition Detector

Canon Medical Systems Europe B.V.
Canon – Alphenix Core

Single Plane

Canon – Alphenix Core

Canon Medical Systems Europe B.V.
Subscribe to Newsletter