Medical secrecy is not the exclusive domain of American presidents. When Anthony Eden became British Prime Minister in 1955, he was still suffering from the sequelae of a 1953 cholecystectomy that had gone terribly wrong: the bile duct was “inadvertently” tied (causing postoperative jaundice), the ligature of the cystic duct quickly broke down, and the surgeon suffered a nervous breakdown that caused the operation to be put on hold while he composed his nerves.11 Then, during the follow-up surgery, the biliary duct was cut (“the knife slipped”), while the right branch of the hepatic artery was “inadvertently” ligated, eventually causing atrophy of the right hepatic lobe.12 Eden came close to death, but slowly recovered, and in June 1953, traveled to Boston to undergo repair surgery. Despite this, in 1954 and 1955, he experienced four episodes of shaking chills, fever, and abdominal pain, and in October 1956, he developed one more episode of pain and rigor, with fevers to 106 °F. He was eventually diagnosed with ascending cholangitis and given sulfur drugs, together with barbiturates for sleep and amphetamines during daytime. It was in these conditions that he dealt with the Suez Canal Crisis,12 whose mishandling created not only mistrust with the USA but also a Middle East chaos that ultimately benefited the Soviet Union. Once again, the British public was unaware.
Fun fact: the hidden medical problems of world leaders may lead to political crises in the Middle East