title: Flow rates from an intermittent positive pressure breathing-anesthetic delivery apparatus for horses.
abstract: Inspiratory flow rates were measured and compared in an equine intermittent positive pressure breathing-anesthesia delivery apparatus powered by a positive phase ventilator, a positive-negative phase ventilator, and a modified positive phase ventilator with automatic flow acceleration at driving pressures of 2,600, 4,400, and 5,200 mm of Hg (50, 85, and 100 psi). The last-named apparatus consistently produced the highest flows for a given ventilator setting and driving pressure. Regardless of the unit used, the greater driving pressures and high ventilator range settings produced the greatest flows.
mesh_terms: D000758:Anesthesia / Q000662:veterinary*; D000776:Anesthesiology / Q000295:instrumentation; D000818:Animals; D005069:Evaluation Studies as Topic; D006736:Horses; D007384:Intermittent Positive-Pressure Breathing / Q000295:instrumentation / Q000662:veterinary*; D011175:Positive-Pressure Respiration / Q000662:veterinary*