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  • Title: A novel technique of non-invasive ventilation: Pharyngeal oxygen with nose-closure and abdominal-compression--Aid for pediatric flexible bronchoscopy.
    Author: Soong WJ, Jeng MJ, Lee YS, Tsao PC, Harloff M, Matthew Soong YH.
    Journal: Pediatr Pulmonol; 2015 Jun; 50(6):568-75. PubMed ID: 24616304.
    Abstract:
    OBJECTIVE: To evaluate the safety, feasibility and efficacy of a novel non-invasive ventilation (NIV) technique--pharyngeal oxygen with nose-closure and abdominal-compression (PhO2 -NC-AC)--to aid pediatric flexible bronchoscopy (FB). DESIGN: A prospective 1 year study of patients who received FB. A basic PhO2 flow (0.5-1.0 L/kg/min, maximal 5.0 L/min) was routinely applied. Active NIV was initiated when the heart rate dropped <80 beats/min or desaturation was <80% for >10 sec. It was performed as follows: NC 1 sec for inspiration then released, followed by AC 1 sec for active expiration at a rate of 20-30 cycles/min until vital signs returned to acceptable levels for >10 sec. When the patients were stable, supplementary NIV was optionally given. Cardiopulmonary parameters were collected and analyzed. MEASUREMENTS AND MAIN RESULTS: Three hundred thirty-seven FBs, including 188 therapeutic, were conducted in 286 patients with a mean age of 18.3 months (± 14.4, 10 min to 12 years) and a mean body weight of 13.5 kg (± 6.7, 0.5-35 kg). Three hundred thirty-three active NIVs were executed with a mean duration of 87.8 sec (± 40.4, 28-190 sec). A significantly longer FB duration (33.2 ± 16.7 min vs. 7.2 ± 2.8 min, P < 0.001) and a higher application rate of active NIV (1.44/FB vs. 0.42/FB) were noted in the therapeutic compared to the diagnostic group. Vital signs and blood gases (35 cases) improved rapidly and returned to baseline within 3 min. All FBs were safely and successfully completed without significant complications. CONCLUSIONS: PhO2 -NC-AC is a simple, safe and effective NIV technique for respiratory support and rescue during various pediatric FB procedures.
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