JPMorgan Chase & Co. Chief Executive Officer Jamie Dimon underwent emergency heart surgery, temporarily handing control of the largest U.S. bank to his lieutenants just as a potential pandemic rattles the global financial system.
Dimon felt chest pain before work Thursday and went to a hospital, checking himself in, according to a person with direct knowledge of the matter. It undoubtedly saved his life: He was diagnosed with acute aortic dissection, a serious condition involving a tear in the large blood vessel branching off the heart. Half of people who develop it die before reaching the hospital.