[Aortic isthmic stenosis: clinical study and postoperative follow-up by MRI. Report of a case].

A case report. Nuclear Magnetic Resonance (NMR) is the most recent non-invasive diagnostic technique which can provide high quality anatomic and functional data. The absolute safety of the method make it suitable for follow-up of patients who have undergone aortic surgery.

[A new method for calculating the mass of the left ventricle by angiocardiography].

The authors describe a simplified method to determine left ventricular volume and mass from the ventricular silhouette, taken from a right oblique anterior angiographic projection at 30 degrees, used to measure the telediastolic surface and major axis, and of measuring the telediastolic thickness of the ventricular wall in the postero-lateral segment of the silhouette taken from a left oblique anterior angiographic projection at 60 degrees. Sixty-four ventricular silhouettes were analysed in patients undergoing left kineventriculography for coronaropathy and ventricular mass was determined using both the new and traditional methods. Using the new method mass values (mean value 87.

[Electrocardiographic indices of reperfusion and limitation of the necrotic area in acute myocardial infarct].

The aim of this study was to assess the evolution of ST segment displacement and the formation of new Q waves in relation to the late angiographic demonstration of recanalization of the infarct-related vessel in 36 patients with acute myocardial infarction admitted in our Institution within 8 hours from the onset of symptoms. Eighteen patients were treated with intravenous urokinase (200,000 + 1,200,000 UI) followed by sodium-heparin 1,000 U/ev/hour for 48 hours and calcium-heparin 3,000 UI/10 Kg/12 hours from the third day to discharge. Eighteen patients were treated from admission only with calcium-heparin as seen before.