Podbit · TED Talks Daily
Before leaving Philadelphia, the family agreed to participate in a genetic study. The result: Nadav had an H5 gene mutation never before reported in medical history. More astonishing — both James and Tali carried the exact same mutation, independently. Genetic counselors traced the shared origin to a common ancestor 400 to 500 years ago. Fate, in genetic form.
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At 14:36 · chapter starts 4:31
James Robinson opens by disarming the audience: yes, his son Nadav died at 5, and no, he doesn't think it was the worst thing imaginable. He walks through Nadav's diagnosis — a single ventricle caused by heterotaxy, requiring three palliative surgeries — and uses this as a gateway into the biological miracle of embryonic cilia, the three-hour window during which organ fate is sealed [1] — James G. Robinson "Nadav was born with a single ventricle heart — not fixable, only patchable through a series of three palliative surgeries before age 4. The…" 04:35 . From wonder, he turns to crisis: the family's trip to Australia, Nadav's clot, the ten-hour surgery, the family meeting where doctors gave three options and one was already ruled out, and Tali's response — 'It's up to him. I trust him' [2] — James G. Robinson "So what you're saying is that it's up to him. Yes, I suppose that's right. Well, I can live with that. I trust him." 11:23 . He traces the remarkable six months in Philadelphia, the herb garden walks, the last-ditch lymphatic procedure, and the genetic research study that revealed Nadav had a never-before-reported H5 mutation shared identically by both parents. Robinson closes with pride — not grief — as the dominant emotion of Nadav's death, and with the image of telling his sons the truth about death under a sky full of stars, each one possibly long extinguished.
Nadav was born with a single ventricle heart — not fixable, only patchable through a series of three palliative surgeries before age 4. The goal was never a cure but buying time until a transplant might be possible. Most parents would call this a nightmare. Robinson calls it a privilege.
Nadav was born with a single ventricle due to heterotaxy and required three palliative surgeries before age 4, the first at just 5 days old.
In the first three hours after conception, tiny hairs called cilia beat amniotic fluid around the embryo, laying proteins that tell organs where to grow. If the cilia misfire, organs form in the wrong place. That three-hour window is why Nadav's heart grew wrong. It's also why Robinson is in awe that human development works at all.
During embryonic development, cilia on the outside of the embryo beat amniotic fluid to position proteins that determine organ formation — a process that takes only 3 hours.
After a clot was discovered in Australia two days before the family was due to fly home, Nadav underwent emergency surgery lasting 10 hours with 7.5 hours on bypass.
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