When Mike Miranda's father died, he helped care for his younger sister, Caroline, during a medical crisis. Three decades later, she stepped in to help him when he experienced a health crisis. Caroline Miranda donated a kidney to her brother in a rare robotic transplant procedure at NewYork-Presbyterian/Columbia University Irving Medical Center. The procedure was performed simultaneously, using state-of-the-art technology to operate three times a day. Mike, who had previously had a kidney transplant, learned about two separate health issues at the age of 27 and had Berger's disease, which can prevent the organs from filtering waste from the blood.