[4-year follow-up of dead space volume after pulmonary embolism. Apropos of a case].
The measure of dead space (VD) has been at the centre of a controversy in the diagnosis of pulmonary emboli. We present an unusual case report because we had measured the dead space before the acute incident. The improvement in the result only occurred after the imposition of a vena caval filter and this supplied the discussion on the specificity of scintigraphy to appreciate the functional state of the pulmonary vascular bed.