Because they had irreversible damage to the left ventricular myocardium none of 12 patients with critical aortic stenosis diagnosed prenatally survived after postnatal treatment. This experience prompted three attempts at intrauterine balloon dilatation of the aortic valve in two fetuses with this condition. On each attempt the balloon catheter was successfully delivered to the left ventricle. ...

native-valve-endocarditis-using transesophageal echocardiography: implications for surgical treatment. Thorac Cardiovasc Surg 1991;39:273-80. 15 John RM, Pugsley W, Treasure T, Sturridge MF, Swanton RH. Aortic root complications of infective endocarditis-influence on surgical outcome. Eur Heart J 1991; 12:241-8. 16 Wong CM, Oldershaw P, Gibson DG. Echocardiographic demonstration of aortic root ...

I t is not unusual for complicated aneurysms of the ascending aorta to affect left ventricular function. Processes causing or associated with an aneurysm may narrow the coronary artery ostia and produce myocardial ischemia or infarction; the aneurysm may distort the aortic valve ring and produce aortic insufficiency with subsequent left ventricular hypertrophy, dilatation, and failure. However,...

Histological sections of relaxed porcine aortic valves were studied from a mechanical point of view. The observations are combined into a tractable scheme of the tissue structure of the aortic valve. The valve leaflets can be regarded as an elastic meshwork, reinforced with stiff collagen bundle-s, showing an arrangement in one particular direction. The sinus walls consist of smooth muscle tiss...

in this paper, we investigate various kinds of extensions of twin-good rings. moreover, we prove that every element of an abelian neat ring r is twin-good if and only if r has no factor ring isomorphic to z2  or z3. the main result of [24] states some conditions that any right self-injective ring r is twin-good. we extend this result to any regular baer ring r by proving that every element of a...

Pseudoaneurysm formation after aortic valve and root replacement is a postoperative complication that has traditionally been addressed by surgical means. We describe a case of a large subaortic pseudoaneurysm successfully occluded by transcatheter device closure. A 64-year-old woman with a history of mitral valve repair and ring implantation due to severe valvular regurgitation was referred for...

The association of arachnodactyly with other skeletal abnormalities and with ocular and cardiac malformations is now well recognized, and numbers of cases illustrating the syndrome have been reported in recent years. The main cardiac malformations have been degeneration of the aortic media with dissecting aneurysm or aneurysmal dilatation, usually of the ascending aorta, but coarctation, change...

A discrete subaortic membrane is a rare cause of subaortic stenosis in adults. It may present in an isolated form as a fibrous or fibromuscular ring below the aortic valve. A 24 year-old male patient was admitted to our outpatient clinic with dyspnoea and palpitations. His physical examination was unremarkable except for an aortic 3/6 systolic murmur. Electrocardiography revealed normal sinus r...

Aortic coarctation is a rare but dangerous condition. Presence of aortic dissection in addition to coarctation is significantly rarer and more life-threatening. Here, we present a case of acute inferior MI due to aortic dissection complicating a native aortic coarctation. A 17-year-old boy was admitted to our emergency department due to severe chest pain and loss of consciousness. His ele...