Myanmar specialists have successfully transplanted a kidney into a young woman, marking the 13th successful operation in 12 years, sources with the Yangon General Hospital said on Thursday.

The kidney, taken out from a 20-year-old donor Ma San Hti Bwa, was transplanted into her elder sister Ma San Phaung Bwa aged 23 at the hospital on Tuesday with the two operations lasting a total of nearly seven hours.

The recipient's two kidneys were damaged by 80 percent and her younger sister donated one of her two kidneys, the sources said.

Myanmar started successful kidney transplant operations in 1997.

Meanwhile, Myanmar specialists have also successfully transplanted an artificial aorta into a patient with Abdominal Aortic Aneurysm at a hospital in the new capital of Nay Pyi Taw at the end of July this year, an earlier report said.

The surgical operation was carried out on a male patient, U Than Kyaw, 68, on July 30 by seven Myanmar specialists on complaint of a pain in the patient's abdomen.

Moreover, in August 2004, Myanmar also successfully carried out a liver transplant operation for the first time.

During the past two decades, Myanmar had also successfully performed operations on renal transplant, crushed arm replanting and separating a conjoined twin.