A cystic fibrosis victim who became the nation's first living heart donor has died of respiratory failure, 14 months after receiving a heart and lungs transplant at Johns Hopkins Hospital.

Clinton House, 29, who donated his heart to another man after he received a heart-lung transplant, died while awaiting a second transplant, his cardiologist, Dr. Thomas Traill, said Monday.

House's respiratory failure was caused by his rejection of the transplanted lungs, the cardiologist said.

Meanwhile, John Couch, 39, of Yardley, Pa., who received House's original heart, continues to do well, Traill said. Couch had suffered from congestive heart failure.