Liver Transplant for Liver Cancer: HCC, the UCSF Criteria and Downstaging

Both donor and recipient undergo extensive two-pronged evaluation: confirming the surgery poses no major risk to the donor, and confirming the liver quality is good enough to function well in the recipient. Primary non-function occurs in under 1-2% of living donor transplants; early allograft dysfunction in about 5-10%. Donors are generally 18-55, and a younger, non-fatty liver has better quality than an older or fattier one.

Legally, the donor must be a relative of the patient. Medically, the ideal donor is blood-group compatible (A or O for an A recipient, B or O for a B recipient, any group for an AB recipient, only O for an O recipient; Rh status doesn't matter), aged 18 to 55, and free of diabetes or advanced uncontrolled pulmonary disease. An incompatible donor can still be evaluated if no compatible one exists, with longer preparation, higher cost and slightly increased risk.

Post-transplant patients who contract COVID-19 usually develop mild disease since the immunosuppressed body can't mount a severe response, though those who do develop severe COVID-19 can have poorer survival due to vulnerability to secondary infections. On nutrition: patients awaiting transplant should follow a high-protein, high-calorie diet to fight muscle loss (sarcopenia); after transplant, only freshly cooked meals, clean water, and peeled fruits/vegetables eaten immediately are advised, plus reduced red meat, due to immunosuppression and cardiovascular risk.

About 70-80% of eventual growth happens in the first two to four weeks, and 95-97% of original size is reached by six months. The '10 years survival' claim is an absolute myth: once recovered, a donor's life expectancy, work, family and sexual life are completely unaffected. The donation age range is generally 18 to 55, and a person can only donate a liver once.

Re-transplant is needed in about 5-7% of patients, due to disease recurrence, chronic rejection, or other causes. It is technically more challenging than a first transplant but achieves equal long-term results when performed by a skilled team; some patients have undergone two, three, or even four transplants over the years.

A single tumour under 6.5cm, or up to three tumours each under 4.5cm with total diameter under 8cm, giving over 91% five-year survival post-transplant.

Treatment that reduces the size and activity of a liver tumour that is outside the UCSF criteria, so that if it falls within criteria and hasn't spread, transplant can still be offered.