San Diego

A Denver woman is in critical but stable condition after a lung transplant at UC San Diego Medical Center, a hospital spokeswoman said Wednesday.

Vicky Lamberton, a 35-year-old mother of two, received the single-lung transplant Tuesday during a four-hour surgery performed by Dr. Stuart Jamieson and a five-member team of surgeons and specialists. Lamberton, who suffered from primary pulmonary hypertension, had been on the center’s waiting list for a donor lung since September, 1989.

The transplant was the second single-lung transplant performed at the hospital by Jamieson, chief of cardiothoracic surgery, and the team. The first was completed June 8. The team has done 12 transplants since February, including a heart-lung and nine heart transplants, a hospital spokeswoman said. All have survived.

The one-year survival rate for a single-lung transplant is about 71%, according to the International Society for HeartTransplantation registry.