[Volume and regional contraction of the left ventricle studied with venous injection in subtraction angiography].

Unlabelled: The end-diastolic and end-systolic volumes, the left ventricular ejection fraction, and segmental contraction of the left ventricle (5 areas) were determined at rest in 31 patients using two methods: conventional cineventriculography (as reference) and digital subtraction angiography by venous injection (the inferior vena cava).

Results: the volumes and ejection fraction obtained by digital subtraction angiography were reliable, though slightly less accurate than conventional ventriculography. Quantification of segmental contraction was satisfactory in the apical, anterolateral, and anteroinferior portions.

Acute hemodynamic effects of intravenous amiodarone in patients with coronary artery disease.

The acute hemodynamic effects of intravenous amiodarone (Cordarone injectable; Labaz) were studied during cardiac catheterization in 16 male patients with coronary artery disease (age range, 38-64 years; mean, 53 years). Amiodarone was administered as a bolus at a dosage of 5 mg/kg bodyweight over a 1-min period. Measurements were made 5, 10, and 15 min thereafter.

[Angiographic study of the dynamics of the interventricular septum].

The interventricular septum was studied by biventricular angiography in 52 patients divided into 4 groups: the first group consisted of 14 normal subjects; the second of 10 patients with hypertension (9 cases) or aortic stenosis (1 case); the third, of 19 patients with echocardiographic asymmetric septal hypertrophy, and the fourth, of 9 cases of cardiomyopathy with dilatation. The following parameters were measured: septal thickness at 4 different points and mean septal thickness, the height (long axis) and surface of the septum in diastole and systole. The percentage variation was calculated.