A heart-lung machine is developed. The polio rate is at an all-time high: fifty-five thousand people are stricken.

30 Jan.

A cardiac-arrest patient is revived by electric shock.

10 Feb.

The 190-million-volt deuteron ray combats cancer without breaking the skin.

8 Mar.

A mechanical heart keeps a patient alive for eighty minutes.

21 Apr.

Holes in a heart wall are repaired surgically.

19 Sept.

An artificial heart valve is installed in a human.

13 Nov.

An artificial pacemaker is used to regulate heart rhythm.