[Chronic dissecting aneurysm of the sinus of valsalva: report of a case].

The subject was a forty five year old female who was admitted to our hospital with chief complaints of cough and thoracic distress. After detailed examination, she was diagnosed as having aneurysm of the noncoronary sinus of Valsalva and aortic regurgitation. The finding during operation showed chronic aortic dissection localized to the noncoronary sinus of Valsalva. The entry of aortic dissection was just above the noncoronary annulus, which was found to be detached and leaned to the left ventricule. An operation for aortic root replacement was performed with Carrel patch method and had a good postoperative course. Only a few reports have been made on cases of aneurysm of the noncoronary sinus of Valsalva caused by chronic regional aortic dissection.