Matt was soon diagnosed with a type A aortic dissection. In his case, it changed the geometry of one of his heart valves. The damaged valve, which usually allows blood to flow only out of the heart, was also allowing blood to leak back in. As a result, the left ventricle flooded, leading to fluid backup in Matt's lungs.
Receiving timely care would be essential. Every hour that passes after an aortic dissection increases the risk of death by 1% to 2%, according to Dr. de la Cruz. Matt was taken by Boston MedFlight helicopter to the Brigham and Women's ER.
Estimating that Matt had a less than 25% chance of survival, Dr. de la Cruz assembled a diverse team of specialists to treat him. Surgery to repair the aortic dissection would be risky. But without surgery, Matt would die.
Concerned about heart failure (when the heart does not pump enough blood to the rest of the body), Dr. de la Cruz recruited the help of Akinobu Itoh, MD, PhD, surgical director of the Brigham and Women's mechanical circulatory support program. One of Dr. Itoh's specialties is supporting weak hearts using heart pumps and other devices.
In the operating room, Matt's heart stopped. The team performed CPR to restart it. Then he was placed on a heart-lung machine to maintain blood and oxygen circulation on a short-term basis.
Once stabilized, Matt underwent open heart surgery led by Dr. de la Cruz, Dr. Itoh, and Mark Cunningham, MD, a Mass General Brigham advanced heart failure surgeon and interim chief of the Division of Cardiac Surgery at Brigham and Women's. They found an aneurysm (a bulge in a blood vessel caused by weakened arterial walls), which they replaced with a graft.
The damaged valve also needed to be replaced. Younger patients like Matt usually receive a mechanical valve made of carbon. However, Dr. Itoh suspected that Matt would soon need a heart pump. Since the cable running from the pump to the heart cannot pass through carbon, using a mechanical valve would be impossible. Dr. Itoh chose to use a valve made of cow tissue.
"The durability of the tissue valve is limited compared with a mechanical valve," Dr. Itoh said. "But we had to make sure he could survive the next few weeks. His ventricle was very weak and needed support, so the shorter longevity of the valve was a small price to pay."
Matt had five open heart surgeries over a two-week period. These included procedures to insert and later remove a heart pump. He also spent time on an ECMO machine for long-term heart and lung support until he recovered.
Each surgery required anesthesia, which was overseen by another member of Matt's medical village, Luigino Nascimben, MD.
While in the cardiac intensive care unit one week after the initial event, Matt struggled to wake up from the anesthesia. A CT scan showed he had suffered several strokes. Mass General Brigham intensivist Christoph Gunther Stanislaw Nabzdyk, MD, preached calm and patience, stressing that the surgeries had been successful.
"Dr. Nascimben and Dr. Nabzdyk provided reassurance and watched over Matt," says Kristi. "They helped him move from minute-by-minute care to hour-by-hour and then eventually day-by-day."