Castagna was the first Italian woman to climb Makalu and at the time of her death, remained the youngest Italian woman to climb an eight-thousander (Shishapangma) at 27 years. In 2003, during an expedition headed by Tarcisio Bellò along with Mario Vielmo], she met Giampaolo Casarotto, who would later be her climbing partner for many expeditions. The Mount Everest attempt ended at