[Variations in gas exchange and hemodynamic effects of various means of oxygen administration (spontaneous ventilation, controlled ventilation and under I.P.P.B.) in 19 severely obstructed pulmonary hypertension patients].

In 19 cases of severe chronic respiratory insufficiency by obstruction, the authors studied the haemogasometry and haemodynamic incidence of inhaling a mixture with FiO2 by various ways and in respiratory reeducation. Controled ventilation with or without manual abdominal pressure, instrumental kinesitherapy under pressure relaxor and simple oxygen inhalation. The pressure relaxor seems particularly suited to patients suffering above all from hypercapnia and obstruction because of its limited haemodynamic repercussions.