Vieussens was among the first to describe the morbid changes in mitral stenosis, the throbbing pulse in aortic insufficiency, and the first correctly to describe the structure of the left ventricle, the course of the coronary vessels and the valve in the large coronary vein. He was the first to diagnose thoracic aneurysm during the life of the patient. Vieussens included a classic description of the symptoms of aortic regurgitation in his book. Partial English translation in No. 2241. Digital facsimile from the Medical Heritage Library, Internet Archive, at this link.