| continuous positive pressure breathing | Artificial ventilation in which all inspirations are provided by positive pressure applied to the airway. Synonym: continuous positive pressure breathing, continuous positive pressure ventilation, intermittent positive pressure breathing, intermittent positive pressure ventilation. (05 Mar 2000) |
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| positive-negative pressure breathing | Inflation of the lungs with positive pressure and deflation with negative pressure by an automatic ventilator. (05 Mar 2000) |
| intermittent positive-pressure breathing | Application of positive pressure to the inspiratory phase of spontaneous respiration. See: controlled mechanical ventilation (12 Dec 1998) |
| continuous positive airway pressure | A technique of respiratory therapy, in either spontaneously breathing or mechanically ventilated patients, in which airway pressure is maintained above atmospheric pressure throughout the respiratory cycle by pressurization of the ventilatory circuit. (05 Mar 2000) |
| continuous positive pressure ventilation | Synonym: controlled mechanical ventilation. (05 Mar 2000) |
| positive end-expiratory pressure | A technique used in respiratory therapy in which airway pressure greater than atmospheric pressure is achieved at the end of exhalation by introduction of a mechanical impedance to exhalation. (05 Mar 2000) |
| positive-pressure respiration | A method of mechanical ventilation in which pressure is maintained to increase the volume of gas remaining in the lungs at the end of expiration, thus reducing the shunting of blood through the lungs and improving gas exchange. (12 Dec 1998) |
| positive-pressure respiration, intrinsic | Non-therapeutic positive end-expiratory pressure occurring frequently in patients with severe airway obstruction. It can appear with or without the administration of external positive end-expiratory pressure (positive-pressure respiration). It presents an important load on the inspiratory muscles which are operating at a mechanical disadvantage due to hyperinflation. Auto-peep may cause profound hypotension that should be treated by intravascular volume expansion, increasing the time for expiration, and/or changing from assist mode to intermittent mandatory ventilation mode. (12 Dec 1998) |
| intermittent positive-pressure ventilation | Application of positive pressure to the inspiratory phase when the patient has an artificial airway in place and is connected to a ventilator. See: controlled mechanical ventilation (12 Dec 1998) |
| apneustic breathing | Pauses in the respiratory cycle at full inspiration, caused by damage of the respiratory control centres in the more caudal pons. (05 Mar 2000) |
| ataxic breathing | Completely irregular breathing pattern, with continually variable rate and depth of breathing; results from lesions in the respiratory centres in the brainstem, extending from the dorsomedial medulla caudally to the obex. Synonym: ataxic breathing, Biot's breathing, respiratory ataxia. (05 Mar 2000) |
| Biot's breathing | Completely irregular breathing pattern, with continually variable rate and depth of breathing; results from lesions in the respiratory centres in the brainstem, extending from the dorsomedial medulla caudally to the obex. Synonym: ataxic breathing, Biot's breathing, respiratory ataxia. (05 Mar 2000) |
| Biot's breathing sign | <clinical sign> Irregular periods of apnea alternating with four or five deep breaths; seen with increased intracranial pressure. (05 Mar 2000) |
| breathing | 1. Respiration; the act of inhaling and exhaling air. "Subject to a difficulty of breathing." (Melmoth) 2. Air in gentle motion. 3. Any gentle influence or operation; inspiration; as, the breathings of the Spirit. 4. Aspiration; secret prayer. "Earnest desires and breathings after that blessed state." 5. Exercising; promotion of respiration. "Here is a lady that wants breathing too; And I have heard, you knights of Tyre Are excellent in making ladies trip." (Shak) 6. Utterance; communication or publicity by words. "I am sorry to give breathing to my purpose." (Shak) 7. Breathing place; vent. 8. Stop; pause; delay. "You shake the head at so long a breathing." (Shak) 9. Also, in a wider sense, the sound caused by the friction of the outgoing breath in the throat, mouth, etc, when the glottis is wide open; aspiration; the sound expressed by the letter h. 10. A mark to indicate aspiration or its absence. See Rough breathing, Smooth breathing, below. Breathing place. A pause. "That caesura, or breathing place, in the midst of the verse." . A vent. Breathing time, pause; relaxation. Breathing while, time sufficient for drawing breath; a short time. Rough breathing (spiritus asper) . See Asper, Smooth breathing (spiritus lenis), a mark (') indicating the absence of the sound of h, as in 'ienai (ienai). Source: Websters Dictionary (01 Mar 1998) |
| breathing bag | A collapsible reservoir from which gases are inhaled and into which gases may be exhaled during general anaesthesia or artificial ventilation. Synonym: reservoir bag. (05 Mar 2000) |