Last month, the International Business Times came along with us to Tanzania on a Little Hearts Project. After spending a week with us they wrote this article and recorded this documentary film.

On a monitor above the surgeons heads, a red and green 0 indicates Juniors heart has been stopped. The medics get to work quickly, their fingers moving carefully around the ten or so wires protruding out of the three-year-olds chest. After a while, the heart jumps back to life.

More than a million babies worldwide are born every year with a congenital heart defect. Of these, one tenth will not live to see their first birthday. While corrective surgery is normally performed within weeks of the birth, in Tanzania and other developing countries, poverty and a lack of cardiac specialists or facilities mean many go untreated.

Junior is being operated on in Muhimbili National Hospital in the Tanzanian port city of Dar es Salaam. It is the only medical centre in the vast, east African country of 50 million that is equipped for open-heart surgery. His mother is sitting in the corridor outside the operating theatre, waiting anxiously to find out if her son has survived the high-risk but life-saving surgery.

Click here to read more and view the film