Clint Malarchuk's Jugular Vein Severed (1989)

Clint Malarchuk's jugular vein severance in 1989 remains the most harrowing on-ice medical emergency in NHL history, as a skate blade cut his neck open, causing blood to spurt across the rink before millions of viewers. The Sabres goalie lost nearly 1.5 liters of blood within seconds, which is 60% of the body's total volume, and only survived because athletic trainer Jim Pizzutelli applied direct pressure to the wound before paramedics arrived. This injury is uniquely terrifying compared to #5 Sid Vicious's leg break, as the immediate threat of death was far higher, requiring 200 stitches to close the wound. The incident led to stricter NHL equipment safety protocols, including mandated neck guards, though Malarchuk later struggled with PTSD from the trauma.