Michelle M Perello

Landstuhl Regional Medical Center, Landstuhl, Rheinland-Pfalz, Germany

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Publications (2)8.15 Total impact

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    ABSTRACT: We were concerned about the risk of inadequate humidification during high-frequency percussive ventilation (HFPV). We studied 5 humidifiers during HFPV with a lung model, at bias gas flows of 10 L/min, 30 L/min, and 50 L/min, and compared the results to those from a comparator ventilator/humidifier setup and to the minimum temperature (30 degrees C) and humidity (30 mg/L) [corrected] recommended by the American Association for Respiratory Care, at both regular room temperature and a high ambient temperature. Temperature was measured at the humidifier outflow point and at the artificial carina. Humidity was measured at the artificial carina. Of the 7 HFPV/humidifier combinations, 2 (the MR850 at a bias flow of 50 L/min, and the ConchaTherm Hi-Flow with VDR nebulizer) provided a carinal temperature equivalent to the comparator setup at room temperature, whereas one HFPV/humidifier combination (the ConchaTherm Hi-Flow with modified programming, at bias flows of 30 L/min and 50 L/min) provided a higher carinal temperature. At high ambient temperature, all of the setups delivered lower carinal temperature than the comparator setup. Only 2 setups (the ConchaTherm with modified programming at a bias flow of 50 L/min, and the ConchaTherm Hi-Flow with VDR nebulizer) provided carinal humidification equivalent to the comparator setup, without regard to ambient temperature; the other humidifiers were less effective. The ConchaTherm with modified programming, and the ConchaTherm with the VDR nebulizer provided the most consistent humidification. HFPV's distinctive gas-flow mechanism may impair gas heating and humidification, so all humidification systems should be tested with HFPV prior to clinical use.
    Full-text · Article · Apr 2009 · Respiratory care
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    ABSTRACT: Landstuhl Regional Medical Center is the largest U.S. medical facility outside the United States, and it is the first permanently positioned hospital outside the combat zone providing care to the wartime sick and wounded. As of November 2007, Landstuhl Regional Medical Center personnel have treated over 45,000 patients from Operations Enduring Freedom and Iraqi Freedom. The current trauma/critical care service is a multidisciplinary, intensivist-directed team caring for a diverse range of clinical diagnoses to include battle injuries, diseases, and nonbattle injuries. Admissions arise from an at-risk population of 500,000 widely distributed over a geographic area encompassing three continents. When compared with 2001, the average daily intensive care unit census has tripled and the patient acuity level has doubled. Combat casualties account for 85% of service admissions. The clinical practice at this critical care hub continues to evolve as a result of wartime damage control trauma care, robust critical care air transport capabilities, length of stay, and other unique factors. The service's focus is to optimize patients for an uneventful evacuation to the United States for definitive care and family support. Successful verification in 2007 as an American College of Surgeons level II trauma center reflects a continuing institutional commitment to providing the best possible care to the men and women serving our nation in the global war on terror.
    No preview · Article · Aug 2008 · Critical care medicine