David Cannom, a pioneering cardiologist, has died at the age of 86. He was a key figure in the use of implantable defibrillators. Cannom held a leadership position at the Hospital of the Good Samaritan, serving as director of cardiology for more than 30 years.

His work in this role had a significant impact on the field of cardiology. Details of his life and career are available from the source publication.

Further information about David Cannom's achievements and legacy can be found in the original report, which provides a more comprehensive look at his contributions to the medical field.