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John Ritter's Death: Misdiagnosis Tragedy Revealed
12 Sep
Summary
- Ritter died from an aortic dissection, not a heart attack.
- His treatment for a heart attack worsened his condition.
- A lawsuit alleged negligence in his diagnosis and treatment.

Beloved actor John Ritter's sudden death on September 11, 2003, at age 54, shocked fans and colleagues. He passed away from an aortic dissection, a tear in the body's main artery, after initial symptoms were misdiagnosed as a heart attack.
Ritter fell ill on the set of his sitcom "8 Simple Rules." At Providence St. Joseph Medical Center, doctors treated him for a presumed heart attack. However, the treatments, including blood thinners and cardiac catheterization, exacerbated his aortic dissection, proving to be the opposite of the surgery he needed.
A wrongful death lawsuit was filed by Ritter's family against the hospital and doctors, alleging negligence. They claimed a chest X-ray could have revealed the enlarged aorta, leading to life-saving surgery. However, defense lawyers argued that Ritter's deteriorating vital signs necessitated immediate action and that chest pain is far more indicative of a heart attack.
Ultimately, the involved doctors were cleared of wrongdoing. The lawsuit was settled for $14 million. Ritter's family continues to honor his memory through the John Ritter Foundation for Aortic Health, raising awareness for the condition that claimed his life.