heather leonardo cruz has waited : a long time to hear this. that's amazing. for the first time, he's hearing the beat of his new heart. heather for years, leonardo : battled a genetic condition called danon disease that weakens muscles, including the heart. >> i was very very ill. i got so sick to the point that they told me i had to stay in the hospital. heather this new heart, : transplanted into leonardo's body last month at tufts medical center, saved his life. , oh man, i have energy. i have warmness in my body. heart transplant at tufts, breaking a 25-year-old record for new england hospitals. and placing the tufts program in the top 10 nationally for heart transplants. >> we usually do about 20 heart transplants a year. this year we're on a pace to triple the amount of heart transplants we've done in the past. heather: dr. david denofrio is the medical director of the advanced heart failure program at tufts. >> every day, we're waiting and heather this year, about 30% of : the transplanted hearts at tufts have come from a surprising source, people who d

heather: leonardo cruz has waited a long time to hear this. for the first time, he's hearing the beat of his new heart. for years, leonardo battled a genetic condition called danon disease that weakens muscles, including the heart. >> i was very very ill. i got so sick to the point that >> this new heart, transplanted into leonardo's body last month at tufts medical center saved his life. >> oh, man, i have energy. i have warmness in my body. >> he was also the 38th person this year to receive a heart transplant at tufts. breaking a 25-year-old record for new england hospitals. and placing the tufts program in the top ten nationally for heart transplants. >> we usually do about 20 heart transplants a year. triple the amount of heart transplants we've done in the past. >> dr. david is the medical director of the advanced heart failure program at tufts. under his care, some of the hospital's sickest patients live day to day. this year, about 30 percent of the transplanted hearts at tufts have come from a surprising source. people who died from a