The central government's tightened regulations on organ transplants have made it more difficult for desperate Hong Kong patients to receive new livers on the mainland.
But Fan Sheung-tat, known as the city's 'father of liver transplants', said that in the long term the national policy would benefit patients by better guaranteeing the quality of donated organs.
So far this year, only two local patients have received liver transplants on the mainland, significantly down from 39 for the whole of last year.
They are receiving follow-up treatment at the city's only liver transplant centre at Queen Mary Hospital.
About 140 Hong Kong people are waiting for liver transplants, and a study by the Hong Kong Liver Foundation has found that about 30 listed patients die each year before they can find a donor.
There were 72 livers donated last year and 64 in 2005.
Desperate patients have turned to mainland hospitals, which have a greater supply of organs, most of them suspected to have come from executed prisoners in a practice that has been condemned by human rights activists around the world.