Jon McNeil is the father of Ivy, Frankie, and Link McNeil, all of whom developed cardiomyopathy.



Ivy, 15, was diagnosed with dilated cardiomyopathy. She spent four months waiting for a heart transplant before one came through. The transplant was successful and Ivy began to recover. ("You Be Illin'")

Two weeks post-op, Ivy's indices were good and she was recovering well. ("I'm Winning")

Later, Ivy spiked a fever. Cristina took her to the OR for a biopsy, which revealed that she was rejecting her donor heart. They treated it with anti-rejection medication and put Ivy back on the transplant list. ("Go It Alone")

Still in full rejection, Ivy was kept in isolation. While Frankie was in surgery to receive a heart transplant, Ivy declined, bumping up her status to 1A. When a second heart was found to replace the one that failed for Frankie, it was instead redirected to Ivy. The transplant was successful and she was recovering well. ("Change of Heart")

Ivy was later discharged to recover at home. ("We Are Never Ever Getting Back Together")


While Ivy was in surgery getting her new heart, Jon brought their second child, Frankie, into the ER because she was coughing up pink fluid. She, too, was diagnosed with cardiomyopathy. The doctors inserted a pacemaker. ("You Be Illin'")

Two weeks after her pacemaker was inserted, Frankie was doing well, even walking around the hospital. ("I'm Winning")

While playing Hide and Seek with Braden Morris, Frankie collapsed in a hallway. When she was found, her pulse was weak and she wasn't breathing well. She was taken into surgery to insert an LVAD and then she was put on the transplant list. ("Go It Alone")

Frankie's LVAD failed to reverse the heart damage, which left her in desperate need of a heart. One became available, but when they transplanted it, they discovered that it had been damaged during retrieval and couldn't keep her alive. When a second heart became available, Arizona and Alex went to retrieve it personally while Frankie was kept on bypass in the hospital. While they were gone, Ivy declined rapidly, bumping up her status. Cristina made the decision to redirect the second heart to Ivy, who was more stable and had a better chance of survival, while she attempted a total artificial heart on Frankie. That procedure was unsuccessful and Frankie was pronounced dead in the OR. ("Change of Heart")

After Frankie's funeral, Sabine snapped at an orderly who tried to take Frankie's pillow. ("We Are Never Ever Getting Back Together")


While waiting in Frankie’s room while the doctors talked to his parents, Link started to cough up pink fluid just as Frankie had. ("You Be Illin'")

Link was diagnosed with cardiomyopathy and declined quickly. They attempted to put him on a Berlin Heart, but he was clotting too much. They put him on ECMO and he stabilized. However, after 10 days on ECMO, he began clotting even with heparin. Owen was able to convince the FDA to give compassionate release to use a drug-eluting heart pump to buy Link more time to wait for a heart transplant. The device was implanted successfully and they said they'd wait 24 hours and start to wake him up. ("I'm Winning")

Link's heart pump worked well, keeping him stable as he waited for a heart transplant. ("Change of Heart")

Link was later discharged and allowed to wait for a heart transplant at home. ("We Are Never Ever Getting Back Together")

A heart became available for Link during the aftermath of the explosion at the Mall of the Woods. Despite this, they had Link come in to Grey Sloan Memorial Hospital for his transplant. The transplant was successful. ("Fear (of the Unknown)")


A few weeks after Link's heart transplant, Maggie Pierce, who was looking into genetic causes of cardiomyopathy for another patient, discovered what had caused the McNeil kids' cardiomyopathy. A mutation called RAF 1 had been discovered to cause cardiomyopathy only a week before and all three McNeil children had that mutation. Sabine was relieved that it wasn't something in their house or something she had done. ("Puzzle With a Piece Missing")



Sabine McNeilEdit

Jon is married to Sabine McNeil, with whom he has three kids. When the stress of their three kids being in the hospital started to get to them, they fought, Jon walked out, and Sabine wondered if it would destroy their marriage. However, Jon came back, saying that he had fallen asleep in the car and his phone had died. He apologized and they made up.


Jon has three children, all of whom had been diagnosed with cardiomyopathy. His middle child, Frankie, ultimately died of her condition, while Ivy and Link received heart transplants.


Cristina YangEdit

Both Sabine and Jon grew to know and trust Cristina Yang while their children were hospitalized. When Cristina disappeared after losing the Harper Avery Award, they were discontent with having Jeff Russell do Frankie's heart transplant.