Why is dry ice, although used in medicine, fatal for the heart? Dr Gérald Kierzek details the strict rules governing the transport of a graft.
The drama of Christmas Eve: two shattered hopes
According to the Corriere del Mezzogiorno, uA two-year-old child, suffering from serious cardiomyopathy, awaited a miracle at the Monaldi Hospital in Naples. On December 23, hope was reborn. A heart is available in South Tyrol, following the tragic death of a four-year-old boy after a swimming pool accident.
But when the graft arrives, the shock is total. The medical team notes that the heart is irreparably damaged. Instead of regular ice, the container contained dry ice. The extreme cold literally “burned” the heart tissue, making the organ unusable for transplantation.
The error seems technical but its consequences are definitive. Where water ice maintains a stable temperature close to 0°C, dry ice (solid carbon dioxide) is a refrigerant that is far too aggressive for a living organ.
Why did dry ice destroy the organ?
Dr Gérald Kierzek underlines the dangerousness of this method for this type of transplant. “Dry ice is at -78.5°C, a temperature far too low for heart transplants. It causes cell freezes and rapid necrosis.
he explains.
“Unlike water ice, it does not maintain the necessary protective hypothermia of 4°C and seriously damages the membranes through excessive crystallization.”
Useful for certain tissues such as corneas, it is strictly “unsuitable for vascularized and sensitive organs such as the heart.
Transport protocols: high-precision logistics
Transporting a heart is a race against time governed by strict international rules. Between collection and transplantation, every minute counts and every degree matters.
“The storage conditions for a heart graft are standardized to preserve its viability. The classic method is based on static hypothermia between 0 and 4°C” specifies Dr. Kierzek.
A specific preservation solution, rich in potassium, helps preserve the heart, surrounded by crushed ice. “This transport duration is limited to 4 or 6 hours maximum to avoid irreversible damage due to cold ischemia. adds the doctor. By using an agent at -78°C, the organ’s chain of survival was broken.
Three investigations to determine responsibilities
Faced with this medical fiasco, three investigations are open. The first, administrative by the Monaldi hospital. The other two, judicial, by the public prosecutor’s offices of Naples and Bolzano. The challenge is to determine the moment of the error: collection, preparation or transport of the graft.
The South Tyrolean Regional Health Agency reminded that responsibility for storage and transport normally lies with the receiving center team. For the mother of the little donor, who accepted her son’s donation as a “second life”, the news is an additional trauma.
Today, while prosecutors search for the person responsible for this negligence, the little Neapolitan patient is still in intensive care. The absolute urgency remains to find a new donor. Meanwhile, his chances of survival are dwindling.
This drama reminds us that in the world of transplantation, surgical prowess is nothing without logistics of absolute rigor.