Open-heart surgery performed at Schneider Children's Medical Center of Israel in Petah Tikva has saved the life of a tiny premature baby - one of twins - weighing 800 grams. The hospital said it was the first time the procedure was performed on such a small infant in Israel. The baby, born three weeks ago after 30 weeks of gestation, had a rare heart defect in which the right pulmonary artery exited from the aorta instead of from the central pulmonary artery. Operated on by a team headed by Prof. Bernardo Vidne, the baby was attached to a heart-lung machine. He is now well, even though he had no chance of survival without the surgery, the Petah Tikva hospital said.