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Biomedical subjects

W Kasper

Publications and source records attributed to W Kasper.

At least 181 records · Page 10Linked to original sources
PubMed1980

[Motion of the posterior wall in the m-mode echocardiogram - a parameter of global left function (author's transl)].

The cardiac output was determined by thermodilution in 42 patients during heart catheterization and compared to the amplitude of the posterior aortic wall in the m-mode echocardiogram. The amplitude of the posterior aortic wall was measured at the time of the closure of the aortic cusps (KS) and at the time the maximal excursion of the posterior aortic wall occurred (GA). Both parameters correlated strongly to the cardia output (r = 0.84, KS; r = 0.76, GA) and to the forward stroke volume (r = 0.81, KS; r = 0.73, GA). Thus, the amplitude of the posterior aortic wall in the m-mode echocardiogram is a useful parameter in predicting left ventricular function especially in those patients, in whom determination of left ventricular function from the m-mode echocardiogram is limited due to left ventricular asynergy.

Aorta↗
PubMed1980

Deductive echocardiography in a case of ruptured sinus valsalva aneurysm into the right ventricle.

The echocardiographic features of ruptured sinus of valsalva aneurysm were described in a 32-year-old man. The diagnosis was established deductively using the precordial, subxiphoidal and suprasternal approach. Despite careful scanning no discontinuity between the anterior aortic wall and the interventricular septum could be observed, thus demonstrating directly the perforated part of the aneurysm. However, the abnormal motion pattern of the tricuspid valve on the subxiphoid echocardiogram and the enlarged right ventricular cavity suggested involvement of the right ventricle. Pre- and postoperative findings were compared.

Adult↗
PubMed1978

Diagnosis of dissecting aortic aneurysm with suprasternal echocardiography.

A 33 year old woman with Marfan's syndrome and aortic root dissection was studied with precordial and suprasternal echocardiography. The precordial approach revealed some typical features of aortic root dissection. With suprasternal echocardiography it was possible to visualize the characteristic diagnostic feature of this disease: within the aortic lumen an m-shaped pattern--the aortic intimal flap--moving downward to the posterior aortic wall during systole. The diagnosis was confirmed with aortic cineangiography and intraoperative findings. Thus, suprasternal echocardiography can be a useful method of detecting aortic root dissection, especially in patients with aortic arch dissection alone.

Adult↗
PubMed1977

[Calcification of the mitral valve ring, a cardiac manifestation of Marfan's syndrome (author's transl)].

A 29-year-old patient with calcification of the mitral valve annulus with Marfan's syndrome and severe malformation of the chest is reported. There are 8 other cases with calcification of the mitral annulus in this syndrome in the literature. It seems to be a specific but rare cardiac manifestation of Marfan's syndrome with calcification occurring also in the younger age group. These patients, in contrast to other patients with Marfan's syndrome who mostly have mitral insufficiency of minor degree mainly in late systole, present with hemodynamically severe mitral regurgitation. Our patient died 7 weeks after implantation of a prosthetic valve in low output syndrome, probably caused by a paraprosthetic leak and newly developed aortic insufficiency. It therefore seems that indication for prosthetic replacement of the mitral valve in these patients should be made with caution, particularly in regard to the technical difficulties at operation.

Adult↗