HIGH-FREQUENCY JET VENTILATION (HFJV) & CONVENTIONAL VENTILATION(CV): GAS EXCHANGE AND AIRWAY PRESSURES. † 2000
نویسندگان
چکیده
منابع مشابه
High frequency jet ventilation and gas trapping.
We have compared three types of high frequency jet ventilation (HFJV) with conventional positive pressure ventilation in patients recovering from elective coronary artery bypass surgery. Twelve patients were allocated randomly to receive HFJV at ventilatory frequencies of 60, 100, 150 and 200 bpm from a standard jet ventilator at either the proximal or distal airway (HFJV.p and HFJV.d), or from...
متن کاملHigh - frequency Jet Ventilation
High-frequency jet ventilation (HFJV) describes a technique of mechanical respiratory support based on the delivery of gases under conditions of constant flow and low pressure. Among the benefits ascribed to HFJV are lessened interference with hemodynamic function and reduced danger of barofrauma. The theoretical and technical aspects of HFJV are discussed and the clinical experience with 39 pa...
متن کاملRelationship between resonance and gas exchange during high frequency jet ventilation.
We have studied the relationship between gas exchange and mechanical frequency response during high frequency jet ventilation (HFJV) at 0.5-5.0 Hz in anaesthetized pigs. The mechanical gain curve showed a minimal "anti-resonant" response at 0.8 Hz (f1) and a maximal "resonant" response at 5.0 Hz (f2). This finding may be explained by modelling the thorax and abdomen as a system of coupled masse...
متن کاملRESPIRATION AND THE AIRWAY Frequency dependence of lung volume changes during superimposed high-frequency jet ventilation and high-frequency jet ventilation
Editor’s key points † Superimposed high-frequency jet ventilation (SHFJV) involves simultaneous normal frequency (12–20 min) and high-frequency jet ventilation (HFJV) (.500 min). † SHFJV may improve ventilation and gas exchange compared with HFJValone, but the optimum frequencies for SHFJV are unknown. † In this animal model, end-expiratory and tidal volumes determined by opto-electronic plethy...
متن کاملComparison of superimposed high-frequency jet ventilation with conventional jet ventilation for laryngeal surgery.
BACKGROUND New ventilators have simplified the use of supraglottic superimposed high-frequency jet ventilation (SHFJV(SG)), but it has not been systematically compared with other modes of jet ventilation (JV) in humans. We sought to investigate whether SHFJV(SG) would provide more effective ventilation compared with single-frequency JV techniques. METHODS A total of 16 patients undergoing min...
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ژورنال
عنوان ژورنال: Pediatric Research
سال: 1996
ISSN: 0031-3998,1530-0447
DOI: 10.1203/00006450-199604001-02024