To put the significance of this operation into perspective, one in every 200, 000 births involve conjoined twins and of these, 60% die before birth and 35% after a single day. A mere 2% of surviving twins are conjoined at the head specifically, meaning doctors are very unfamiliar with such a situation.
After months of rehearsal on dolls, Carson and his team of anesthesiologists, neurosurgeons, cardiac surgeons, plastic surgeons, nurses and technicians took on the challenge. The operation itself involved lowering the patients’ body temperatures to a point that stopped their hearts and all blood flow, making the task a race against time before irreversible consequences occurred. Ultimately, it was Ben Carson who physically separated the primary vein that connected the twins before the new veins obtained from their heart tissue were inserted.