Misc. kidney exchange

A larger than usual exchange in SF: SF hospital performs 10-person kidney exchange
"Five people have received healthy kidneys from five donors in what may be among the largest kidney exchanges at a single hospital in California.

"The swap at California Pacific Medical Center took place on Friday during a series of operations, the San Francisco Chronicle reports.

"This has been bread-and-butter for us for a few years; we've just never done one of this size," said Dr. Steve Katznelson, medical director of California Pacific's kidney transplant program. "There are all sorts of logistics involved, and it's hard to do."
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Kidney exchange in India is still rare (but not rare like a unicorn): Two women in kidney swap to save life of other’s spouse
"Dr H Sudarshan Ballal, medical director and chairman, medical advisory board of Manipal Health Enterprises, said swap transplants are common in the US but not so in India. "One of my earlier patient was a middle-aged woman whose husband was a potential donor but incompatible with her. They migrated to the US and later told me they had done a swap with a Jewish couple there. We've been trying for a long time to make swap transplants happen but managed it this time," he said. "

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Here's an account of a non-simultaneous nondirected donor chain at St. Barnabas hospital in New Jersey, conducted around Valentine's day, with reporting of an April 2011 meeting of patients and donors: Donors, recipients in chain of eight kidney transplants gather for reunion.
The non-directed donor chose to remain anonymous "I’ve got some new scars, but that’s it," the donor said. "I’d rather it not be a big deal."