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Publications (5)7.52 Total impact

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    ABSTRACT: To compare changes in oxygenation after manual turning and percussion (standard therapy) and after automated rotation and percussion (kinetic therapy). Randomized crossover trial. General and cardiac pediatric intensive care units. Intubated and mechanically ventilated pediatric patients who had an arterial catheter and no contraindications to using a PediDyne bed. Patients were placed on a PediDyne bed (Kinetic Concepts) and received 18 hrs blocks of standard and kinetic therapy in an order determined by randomization. Arterial blood gases were measured every 2 hrs during each phase of therapy. Oxygenation index and arterial-alveolar oxygen tension difference [P(A-a)O(2)] were calculated. Indexes calculated at baseline and after each 18-hr phase of therapy were analyzed. Fifty patients were enrolled. Data from 15 patients were either not collected or not used due to reasons that included violation of protocol and inability to tolerate the therapies in the study. Indexes of oxygenation were not normally distributed and were compared using Wilcoxon signed rank testing. Both therapies led to improvements in oxygenation, but only those from kinetic therapy achieved statistical significance. In patients receiving kinetic therapy first, median oxygenation index decreased from 7.4 to 6.19 (p = .015). The median P(A-a)O(2) decreased from 165.2 to 126.4 (p = .023). There were continued improvements in oxygenation after the subsequent period of standard therapy, with the median oxygenation index decreasing to 5.52 and median P(A-a)O(2) decreasing to 116.0, but these changes were not significant (p = .365 and .121, respectively). When standard therapy was first, the median oxygenation index decreased from 8.83 to 8.71 and the median P(a-a)o(2) decreased from 195.4 to 186.6. Neither change was significant. Median oxygenation index after the subsequent period of kinetic therapy was significantly lower (7.91, p = .044) and median P(A-a)O(2) trended lower (143.4, p = .077). Kinetic therapy is more efficient than standard therapy at improving oxygenation and produces improvements in oxygenation that are more persistent.
    Pediatric Critical Care Medicine 08/2005; 6(4):428-34; quiz 440. · 2.35 Impact Factor
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    ABSTRACT: A girl weighing 26 kg came with a one-day history of progressive hypoxia. Physical examination was significant for clubbing, cyanosis, and tachypnea. Inhaled nitric oxide (NO) was administered at 20 ppm to selectively dilate pulmonary vessels as a temporizing treatment for refractory hypoxemia. A chest CT demonstrated a left lower lobe AVM. On the third day of admission, a pulmonary angiogram and embolization was performed by interventional radiology. At the end of the procedure, PaO2/FiO2 increased to 330 from 40, and the angiographic run demonstrated a 70% reduction in the size of the AVM.
    Journal of Radiology Nursing 01/2004; 23(2):53-53.
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    ABSTRACT: Compare outcomes between physician-directed and protocol-directed weaning from mechanical ventilation in pediatric patients. Prospective-randomized. Pediatric and cardiac intensive care units in a 307-bed tertiary referral hospital for children. The control group (physician-directed) was weaned according to individual physician order for reduction in minute ventilation, positive end-expiratory pressure, and ordered oxygen saturation parameters for reduction in fraction of inspired oxygen (F(IO)(2)). The study group (protocol-directed) was weaned according to a predetermined algorithm developed for the purpose of this investigation. The study enrolled 223 patients (116 physician-directed, 107 protocol-directed). All patients were monitored for hemodynamics, ventilator parameters, arterial blood gas values when available, oxygen saturation, weaning time, pre-weaning time, extubation time, and time on F(IO)(2) > or = 0.40. We also monitored the incidence of reintubation, subglottic stenosis, tracheitis, and pneumonia. The protocol-directed group had additional measurements of actual versus predicted minute volume, comparisons of respiratory rate (actual versus predicted for age), and presence of spontaneous breathing effort for 10 consecutive minutes. Data analysis was done according to intent to treat. There was no significant difference in 12-hour and 24-hour pediatric risk of mortality (PRISM III) scores between groups. The protocol-directed group overall had shorter total ventilation time, weaning time, pre-weaning time, time to extubation, and time on F(IO)(2) >0.40, although after stratification for respiratory diagnosis, only the difference in weaning time remained significant. There was no difference in the incidence of reintubation, new-onset tracheitis, subglottic stenosis, or pneumonia. Protocol-directed weaning resulted in a shorter weaning time than physician-directed weaning in these pediatric patients.
    Respiratory care 09/2001; 46(8):772-82. · 2.03 Impact Factor
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    ABSTRACT: OBJECTIVES: The purpose of this study was to determine the effectiveness of airway pressure release ventilation in children. DESIGN: Prospective, randomized, crossover clinical trial. SETTING: This study was conducted in our 33-bed pediatric intensive care unit at The Children's Hospital of Philadelphia. PATIENTS: Patients requiring mechanical ventilatory support and weighing >8 kg were considered for enrollment. Patients were excluded if they required mechanical ventilatory support for >7 days or required >.50 Fio(2) for >7 days before enrollment. Patients with documented obstructive airway disease and congenital or acquired heart disease were excluded as well. INTERVENTIONS: Each patient received both volume-controlled synchronized intermittent mechanical ventilation (SIMV) and airway pressure release ventilation (APRV) via the Drager Evita ventilator (Drager, Lubeck, Germany). Measurements were obtained after the patient was stabilized on each ventilation mode. Stabilization was defined as oxygenation, ventilation, hemodynamic variables, and patient comfort within the acceptable range for each patient as determined by the bedside physician. After measurements were obtained on the initial mode of ventilation, the subjects crossed over to the alternative study mode. Stabilization was again achieved, and measurements were repeated. After completion of the second study measurements, patients were placed on the ventilation modality preferred by the bedside clinician and were followed through weaning and extubation. Measurements: Vital signs, airway pressures, minute ventilation, Spo(2), and E(T)CO(2) were recorded at enrollment and at each study condition. MAIN RESULTS: APRV provided similar ventilation, oxygenation, mean airway pressure, hemodynamics, and patient comfort as SIMV. Inspiratory airway pressures were lower with APRV when compared with SIMV. CONCLUSIONS: Using APRV in children with mild to moderate lung disease resulted in comparable levels of ventilation and oxygenation at significantly lower inspiratory peak and plateau pressures. Based on these findings, we plan to evaluate APRV in children with significant lung disease.
    Pediatric Critical Care Medicine 07/2001; 2(3):243-6. · 2.35 Impact Factor
  • Theresa Ryan Schultz, Linda Allen Napoli
    Journal for Specialists in Pediatric Nursing 8(4):151-3. · 0.78 Impact Factor