Emperor Akihito on Friday entered the University of Tokyo Hospital for a detailed check of his cardiac blood vessels after showing symptoms of cardiac ischemia, a condition caused by insufficient blood flow to the heart, during a recent physical workup.
Doctors are expected to come out with the test results and their treatment plans in the near future while the 77-year-old Emperor continues his official duties after staying the night at the hospital, the Imperial Household Agency said.
The cardiac ischemia symptoms emerged Jan. 22 when the Emperor engaged in heavy exercise during a regular checkup. The hospital will perform an angiography test of his coronary arteries, the agency said.
Empress Michiko accompanied the Emperor to the hospital.