[Right ventricular migration of a stent after endovascular treatment of a superior vena cava syndrome].

The authors report a case of migration of a Palmaz stent used for treatment of a patient with a malignant superior vena caval syndrome. Transoesophageal echocardiography showed the metallic device in the tricuspid subvalvular apparatus. Several attempts to recover the stent percutaneously failed.

[Vasovagal syncope: the value of tilt-table testing in the evaluation of loss of consciousness].

Syncope, an eminently frequent syndrome, has multiple and varied causes. Its diagnosis is important in view of the poor prognosis of cardiac syncopes and also of the morbidity and discomfort associated with the other etiologies. Unfortunately, the cause eludes us in half the patients so that a clear prognosis and effective therapy can be given to only a few patients.