Her son had been on life support for weeks at a hospital in Naples in a case that has made headlines in Italy.
The donor heart was reportedly transported from Bolzano in northern Italy to Naples - 800km away - in an unsuitable container without a thermometer that could have signalled the excessively low temperature.
Health Minister Orazio Schillaci said in a statement quoted by Italian media that Domenico’s case had “moved the whole of Italy”.
Schillaci earlier spoke of his concern that organ donations could decrease as a result of the case and called for “clarity” to ensure continued trust in the country’s medical services.
-Agence France-Presse