Figure 1.

Patient undergoing pressure support ventilation with a helmet. The transparency of the device permits interaction of the patient with their surroundings. ASV, antisuffocation valve, which opens automatically if disconnection from the ventilator occurs; Br, armpit braces that keep the helmet attached to the patient; C, collar; Inlet, inlet of medical gases, connected to the inspiratory port of the ventilator by conventional tubing; Outlet, outlet of gases, connected to expiratory port of the ventilator; P, sealed passage for the nasogastric tube (NGT), through which the patient can receive enteral feeding or drink through a straw (picture taken with patient permission).