Improving Outcomes for Bronchiolitis Patients After Implementing a High-Flow Nasal Cannula Holiday and Standardizing Discharge Criteria in a PICU.

OBJECTIVES: To decrease length of high-flow nasal cannula (HFNC), PICU, and hospital length of stay (LOS). DESIGN: Quality improvement project. SETTING: A quaternary academic PICU. PATIENTS: Patients with bronchiolitis less than 24 months old. INTERVENTIONS: After initial implementation of a respiratory therapist (RT)-driven HFNC protocol (Plan-Do-Study-Act [PDSA] 1) in October 2017, additional interventions included adjusting HFNC wean rate (PDSA 2) in July 2020, a HFNC holiday (PDSA 3), and standardized discharge criteria (PDSA 4) in October 2021. MEASUREMENTS AND MAIN RESULTS: Duration of HFNC was used as the primary outcome measure. PICU LOS and hospital LOS were used as secondary outcome measures. Noninvasive ventilation use, invasive mechanical ventilation use, and 7-day PICU and hospital readmission rates were used as balancing measures. A total of 1,310 patients were included in this study. Patients in PDSA 2, PDSA 3 and 4 groups were older compared with pre-intervention and PDSA 1 (median of 9 and 10 mo compared with 8 mo; p = 0.01). HFNC duration decreased from 2.5 to 1.8 days after PDSA 1, then to 1.3 days after PDSA 2. PICU LOS decreased from 2.6 to 2.1 days after PDSA 1, 1.8 days after PDSA 2, and 1.5 days after PDSA 3 and 4. Hospital LOS decreased from 5.7 to 4.5 days after PDSA 1, 3.1 days after PDSA 2, and 2.7 days after PDSA 3 and 4. The use of noninvasive ventilation and invasive mechanical ventilation decreased throughout the study from 23.2% in the pre-intervention group, to 6.9% at the end of the project. The 7-day PICU and hospital readmission rates did not increase after implementation. The percentage of patients discharged from the PICU increased from 6.2% to 21.5%. CONCLUSIONS: Modifications to an existing RT-driven HFNC protocol and standardization of discharge criteria led to an improvement in outcomes for patients admitted to the PICU with bronchiolitis without an increase in adverse events.

Improving Pediatric Readiness and Clinical Care in General Emergency Departments: A Multicenter Retrospective Cohort Study.

OBJECTIVE: To evaluate the impact of a collaborative initiative between general emergency departments (EDs) and the pediatric academic medical center on the process of clinical care in a group of general EDs. STUDY DESIGN: This retrospective cohort study assessed the process of clinical care delivered to critically ill children presenting to 3 general EDs. Our previous multifaceted intervention included the following components: postsimulation debriefing, designation of a pediatric champion, customized performance reports, pediatric resources toolkit, and ongoing interactions. Five pediatric emergency care physicians conducted chart reviews and scored encounters using the Pediatric Emergency Care Research Network's Quality of Care Implicit Review Instrument, which assigns scores between 5 and 35 across 5 domains. In addition, safety metrics were collected for medication, imaging, and laboratory orders. RESULTS: A total of 179 ED encounters were reviewed, including 103 preintervention and 76 postintervention encounters, with an improvement in mean total quality score from 23.30 (SD 5.1) to 24.80 (4.0). In the domain of physician initial treatment plan and initial orders, scores increased from a mean of 4.18 (0.13) to 4.61 (0.15). In the category of safety, administration of wrong medications decreased from 28.2% to 11.8% after the intervention. CONCLUSION: A multifaceted collaborative initiative involving simulation and enhanced pediatric readiness was associated with improvement in the processes of care in general EDs. This work provides evidence that innovative collaborations between academic medical centers and general EDs may serve as an effective strategy to improve pediatric care.

Virtual Developmental Screening After Invasive Mechanical Ventilation in Children: A Prospective Cohort Pilot Study.

OBJECTIVES: With decreasing PICU mortality, survivor morbidity has increased. This study aims to evaluate feasibility of virtual PICU-led follow-up of patients at risk for pediatric postintensive care syndrome. DESIGN: Prospective cohort study. SETTING: Single-center, quaternary children's hospital. PATIENTS: Children less than or equal to 4 years without known preexisting neurodevelopmental deficits requiring greater than or equal to 12 hours mechanical ventilation. INTERVENTIONS: None. MEASUREMENTS AND MAIN RESULTS: Age-appropriate Ages and Stages Questionnaires, Third Edition (ASQ-3) were administered via a web-based system at 3, 6, and 12 months following PICU discharge. Primary-care physicians were notified of results; at-risk patients were referred to early developmental intervention. Forty-eight patients enrolled with median age 11.5 months (interquartile range [IQR], 2-19.5 mo) and median mechanical ventilation duration 92.5 hours (IQR, 40.5-147 hr). Fifty-eight percent completed greater than or equal to 1 ASQ-3. Lower caregiver educational achievement, lower income, and single-caregiver status were associated with lower ASQ-3 completion rates. Of those completing any ASQ-3, 50% flagged as at-risk for developmental delay and referred to early developmental intervention. There was no association between patient characteristics and abnormal ASQ-3. CONCLUSIONS: Virtual caregiver-completed surveillance is a promising method to screen children for neurodevelopmental abnormalities following PICU hospitalization and facilitate early referral for developmental intervention, but special attention must be dedicated to families with limited resources for follow-up.

Prophylactic Enoxaparin Against Catheter-Associated Thrombosis in Postoperative Cardiac Children: An Interrupted Time Series Analysis.

OBJECTIVES: The effectiveness of pharmacologic prophylaxis against catheter-associated thrombosis in children is unclear. We evaluated the compliance and outcomes associated with a prophylactic enoxaparin protocol in postoperative cardiac children. DESIGN: The protocol was implemented as a quality improvement initiative and then analyzed using interrupted time series method. Data collected from November 2014 to December 2018 were divided into preprotocol (period 1), protocol implementation (period 2), and protocol revision (period 3). SETTING: A 12-bed academic pediatric cardiac ICU. PATIENTS: Children less than or equal to 18 years old with congenital heart disease admitted postoperatively with central venous catheter in situ for greater than or equal to 1 day. INTERVENTIONS: Before 2016, prophylactic enoxaparin was administered according to physician preference. In January 2016, an enoxaparin protocol was implemented with a goal anti-Xa range of 0.25-0.49 international units/mL. Protocol was revised in February 2017 to increase the starting dose by 25% for infants less than 1 year old. MEASUREMENTS AND MAIN RESULTS: We analyzed 780 hospitalizations from 636 children. Median percentage of catheter-days on prophylactic enoxaparin was 33% (interquartile range [IQR], 23-47%), 42% (IQR, 30-51%), and 38% (IQR, 35-52%) in periods 1-3, respectively. Percentage of catheter-days on enoxaparin showed immediate increase of 90% (95% CI, 17-210%) between periods 1 and 2 and sustained increase of 2% (95% CI, 0.3-4%) between periods 2 and 3. Median rates of thrombosis per 1,000 catheter-days were 5.8 (IQR, 0-9.3), 3.8 (IQR, 0-12), and 0 (IQR, 0-5.3) in periods 1-3, respectively. Rate of thrombosis showed immediate decrease of 67% (95% CI, 12-87%) between periods 1 and 2 and sustained decrease of 11% (95% CI, 2-18%) between periods 1 and 3. CONCLUSIONS: The temporal association between increase in percentage of catheter-days on enoxaparin and decrease in rate of thrombosis suggests the effectiveness of prophylactic enoxaparin.

Practice variation in the immediate postoperative care of pediatric liver transplant patients: Framework for a national consensus.

Advancements in critical care management have led to improvement in pediatric LT outcomes. However, there are no specific guidelines for many aspects of immediate post-LT care. This survey examines practice variations in the immediate postoperative care of pediatric LT patients at a large number of active US centers. This study is a cross-sectional survey of medical directors at PALISI-affiliated PICU in the United States. Centers performing pediatric LT were analyzed. Study measures included PICU practices regarding staffing, composition of the multidisciplinary team, early post-LT graft and patient monitoring, and anticoagulation. Of the thirty-five responding centers, twenty-five had a LT program which accounted for one-half of all US pediatric LTs. For analysis, centers were categorized by volume: high (7), medium (11), and low (7). The majority of PICU teams included an intensivist (80%) and hepatologist (84%). High-volume centers were less likely to have 24-hour in-house attending coverage (29%, compared to 64% (medium) and 100% (low)). High-volume centers were most likely to have pre-printed orders, but least likely to have written PICU management protocols. Most centers utilize routine daily liver ultrasound. Routine prophylactic anticoagulation, and the agent of choice, was variable. There is marked inconsistency in post-LT practice across PALISI centers in regards to team composition and immediate post-LT management. A national US consensus for post-LT PICU practices would facilitate outcomes research and would establish a platform for multicenter studies.

Improving Pediatric Diabetic Ketoacidosis Management in Community Emergency Departments Using a Simulation-Based Collaborative Improvement Program.

OBJECTIVES: The majority of pediatric patients with diabetic ketoacidosis (DKA) present to community emergency departments (CEDs) that are less prepared to care for acutely ill children owing to low pediatric volume and limited pediatric resources and guidelines. This has impacted the quality of care provided to pediatric patients in CEDs. We hypothesized that a simulation-based collaborative program would improve the quality of the care provided to simulated pediatric DKA patients presenting to CEDs. METHODS: This prospective interventional study measured adherence of multiprofessional teams caring for pediatric DKA patients preimplementation and postimplementation of an improvement program in simulated setting. The program consisted of (a) a postsimulation debriefing, (b) assessment reports, (c) distribution of educational materials and access to pediatric resources, and (d) ongoing communication with the academic medical center (AMC). All simulations were conducted in situ (in the CED resuscitation bay) and were facilitated by a collaborative team from the AMC. A composite adherence score was calculated using a critical action checklist. A mixed linear regression model was performed to examine the impact of CED and team-level variables on the scores. RESULTS: A total of 91 teams from 13 CEDs participated in simulated sessions. There was a 22-point improvement of overall adherence to the DKA checklist from the preintervention to the postintervention simulations. Six of 9 critical checklist actions showed statistically significant improvement. Community emergency departments with medium pediatric volume showed the most overall improvement. Teams from CEDs that are further from the AMC showed the least improvement from baseline. CONCLUSIONS: This study demonstrated a significant improvement in adherence to pediatric DKA guidelines in CEDs across the state after execution of an in situ simulation-based collaborative improvement program.

Respiratory pathogens associated with intubated pediatric patients following hematopoietic cell transplant.

BACKGROUND: We describe organisms found in the respiratory tracts of a multicenter cohort of pediatric hematopoietic cell transplant (HCT) recipients with respiratory failure. METHODS: Twelve centers contributed up to 25 pediatric allogeneic HCT recipients requiring mechanical ventilation for respiratory failure to a retrospective database. Positive respiratory pathogens and method of obtaining sample were recorded. Outcomes were assessed using Mann-Whitney U test or chi-squared analysis. RESULTS: Of the 222 patients in the database, ages 1 month through 21 years, 34.6% had a positive respiratory culture. 105 pathogens were identified in 77 patients; of those, 48.6% were viral, 34.3% bacterial, 16.2% fungal, and 1% parasitic. PICU mortality with a respiratory pathogen was 68.8% compared to 54.9% for those without a respiratory pathogen (P = .045). Those with a positive respiratory pathogen had longer PICU length of stay, 20 days (IQR 14.0, 36.8) vs 15 (IQR 6.5, 32.0), P = .002, and a longer course of mechanical ventilation, 17 days (IQR 10, 29.5) vs 8 (3, 17), P < .0001. Method of pathogen identification, type of pathogen, and the presence of multiple pathogens were not associated with changes in PICU outcomes. CONCLUSIONS: In this multicenter retrospective cohort of intubated pediatric post-HCT patients, there was high variability in the respiratory pathogens identified. Type of pathogen and method of detection did not affect PICU mortality. The presence of any organism leads to increased PICU mortality, longer PICU stay, and increased duration of mechanical ventilation suggesting that early detection and treatment of pathogens may be beneficial in this population.

Acute Respiratory Failure in Pediatric Hematopoietic Cell Transplantation: A Multicenter Study.

OBJECTIVES: Acute respiratory failure is common in pediatric hematopoietic cell transplant recipients and has a high mortality. However, respiratory prognostic markers have not been adequately evaluated for this population. Our objectives are to assess respiratory support strategies and indices of oxygenation and ventilation in pediatric allogeneic hematopoietic cell transplant patients receiving invasive mechanical ventilation and investigate how these strategies are associated with mortality. DESIGN: Retrospective, multicenter investigation. SETTING: Twelve U.S. pediatric centers. PATIENTS: Pediatric allogeneic hematopoietic cell transplant recipients with respiratory failure. INTERVENTIONS: None. MEASUREMENTS AND MAIN RESULTS: Two-hundred twenty-two subjects were identified. PICU mortality was 60.4%. Nonsurvivors had higher peak oxygenation index (38.3 [21.3-57.6] vs 15.0 [7.0-30.7]; p < 0.0001) and oxygen saturation index (24.7 [13.8-38.7] vs 10.3 [4.6-21.6]; p < 0.0001), greater days with FIO2 greater than or equal to 0.6 (2.4 [1.0-8.5] vs 0.8 [0.3-1.6]; p < 0.0001), and more days with oxygenation index greater than 18 (1.4 [0-6.0] vs 0 [0-0.3]; p < 0.0001) and oxygen saturation index greater than 11 (2.0 [0.5-8.8] vs 0 [0-1.0]; p < 0.0001). Nonsurvivors had higher maximum peak inspiratory pressures (36.0 cm H2O [32.0-41.0 cm H2O] vs 30.0 cm H2O [27.0-35.0 cm H2O]; p < 0.0001) and more days with peak inspiratory pressure greater than 31 cm H2O (1.0 d [0-4.0 d] vs 0 d [0-1.0 d]; p < 0.0001). Tidal volume per kilogram was not different between survivors and nonsurvivors. CONCLUSIONS: In this cohort of pediatric hematopoietic cell transplant recipients with respiratory failure in the PICU, impaired oxygenation and use of elevated ventilator pressures were common and associated with increased mortality.

Before the Flood: Impact of Coordination of Care and Direct Admissions on Emergency Department Volumes.

BACKGROUND: Transfers of pediatric patients occur to access specialty and subspecialty care, but incur risk, and consume resources. Direct admissions to medical and surgical wards may improve patient experience and mitigate resource utilization. OBJECTIVE: We sought to identify common elements for direct admissions, as well as the pattern of disposition for patients referred to our emergency department (ED). DESIGN: A retrospective qualitative analysis of patients transferred to our pediatric hospital for 12 months was performed. Different physician groups were evaluated for use of direct admissions or evaluation in the ED. Patients referred to the ED were additionally tracked to evaluate their eventual disposition. RESULTS: A total of 3982 transfers occurred during the 12-month analysis period. Of those, 3463 resulted in admission, accounting for 32.55% of all admissions. Transfers accepted by nonsurgical services accounted for 82% of the transfers, whereas 18% were facilitated by one of the surgical services. Direct admissions accounted for 1707 (44.8%) of all referrals and were used more often by nonsurgical services. Of patients referred to the ED (2101 or 55.2% of all referrals), most patients were admitted and 343 (16% of those referred to the ED) were discharged home. CONCLUSIONS: The direct admission process helped avoid ED assessments for some patients; however, some patients referred to the ED were able to be evaluated, treated, and discharged. Consistent triage of the patients being transferred as direct admissions may improve ED throughput and potentially improve the patient's experience, reduce redundant services, and expedite care.

Prospective Evaluation of Physical Contact with Critically Ill Child on Caregiver Spiritual Wellbeing.

OBJECTIVES: To evaluate whether a pediatric intensive care unit initiative promoting physical contact between caregiver and patient improves caregiver spiritual wellbeing. The secondary objectives were to evaluate caregiver perceptions of care before and after the initiative and to follow unplanned extubation rate as a marker of safety of the initiative. We hypothesized that caregiver spiritual wellbeing and caregiver perceptions of care would improve with implementation of our physical contact initiative known as Project ROSE (Reach Out, Soothe, and Embrace). STUDY DESIGN: Project ROSE was a practice change initiative promoting physical contact between caregiver and hospitalized child in an academic quaternary care pediatric intensive care unit. Caregivers' spiritual wellbeing and perceptions of care were surveyed at days 1 and 4, then compared pre- and postimplementation of the unit-wide initiative. Wilcoxon rank sum tests compared groups (pre- and post-Project ROSE). A total of 331 caregivers returned surveys. RESULTS: We analyzed 331 surveys (pre, n = 174/post, n = 157). Caregiver spiritual wellbeing at enrollment (day 1) was no different between groups (P = .47). Caregiver spiritual wellbeing on day 4 was greater in the postintervention group (pre 40.0 [32.0, 44.0] vs post 42.0 [37.5, 45.0] P = .03). Caregiver perceptions of care improved postintervention. There was no change in the unplanned extubation rate between groups. CONCLUSION: Project ROSE improved caregiver spiritual wellbeing and perceptions of care, was implemented safely, addresses a need in family-centered care of critically ill pediatric patients, and merits consideration for integration into practice.

Weight gain and supplemental O2 : Risk factors during the hematopoietic cell transplant admission in pediatric patients.

BACKGROUND: Respiratory failure in the pediatric hematopoietic cell transplant (HCT) recipient is the leading cause for admission to the intensive care unit and carries a high mortality rate. The objective of this study is to investigate the association of clinical risk factors with the development of respiratory failure in the pediatric allogeneic HCT recipient. PROCEDURES: This is a single-center, retrospective review of allogeneic pediatric HCT from 2008 to 2014. Multiple variables were examined. The primary outcome was respiratory failure. Percent weight gain was investigated at multiple time points. Bivariate and multivariate regression was used. RESULTS: Of the 87 allogeneic HCT recipients, 22 (25%) developed respiratory failure. Mortality for entire cohort was 13.8%. All who died were intubated prior to death. The group with respiratory failure had significantly higher percent weight gain increase at multiple time points: peak weight prior to discharge or intubation (P = 0.008), weight at discharge or intubation (P = .001), and weight at day 43 (median day for intubation) (P = 0.02). Odds ratio (OR) for respiratory failure increased with increasing percentage peak weight gain: 10% increase (3.1 [1.1, 9.0]), 15% increase (4.1 [1.5, 11.2]), and 20% (8.3 [2.4. 28.9]). Fifty percent of all patients required supplemental O2 . OR for respiratory failure in patients requiring more than 1 l supplemental O2 is 25.3 (6.5, 98.7). CONCLUSION: Percent weight gain and need for supplemental oxygen is highly associated with the development of respiratory failure in pediatric HCT recipients, representing predictors of acute respiratory failure in pediatric HCT. These data could be incorporated into an algorithm that should be developed, implemented, and validated in a prospective, multicenter fashion.

Intensive Care Management of Pediatric Acute Liver Failure.

Pediatric acute liver failure is rare but life-threatening illness that occurs in children without preexisting liver disease. The rarity of the disease, along with its severity and heterogeneity, presents unique clinical challenges to the physicians providing care for pediatric patients with acute liver failure. In this review, practical clinical approaches to the care of critically ill children with acute liver failure are discussed with an organ system-specific approach. The underlying pathophysiological processes, major areas of uncertainty, and approaches to the critical care management of pediatric acute liver failure are also reviewed.

Pediatric Acute Respiratory Distress Syndrome in Pediatric Allogeneic Hematopoietic Stem Cell Transplants: A Multicenter Study.

OBJECTIVE: Immunodeficiency is both a preexisting condition and a risk factor for mortality in pediatric acute respiratory distress syndrome. We describe a series of pediatric allogeneic hematopoietic stem cell transplant patients with pediatric acute respiratory distress syndrome based on the recent Pediatric Acute Lung Injury Consensus Conference guidelines with the objective to better define survival of this population. DESIGN: Secondary analysis of a retrospective database. SETTING: Twelve U.S. pediatric centers. PATIENTS: Pediatric allogeneic hematopoietic stem cell transplant recipients requiring mechanical ventilation. INTERVENTIONS: None. MEASUREMENTS AND MAIN RESULTS: During the first week of mechanical ventilation, patients were categorized as: no pediatric acute respiratory distress syndrome or mild, moderate, or severe pediatric acute respiratory distress syndrome based on oxygenation index or oxygen saturation index. Univariable logistic regression evaluated the association between pediatric acute respiratory distress syndrome and PICU mortality. A total of 91.5% of the 211 patients met criteria for pediatric acute respiratory distress syndrome using the Pediatric Acute Lung Injury Consensus Conference definition: 61.1% were severe, 27.5% moderate, and 11.4% mild. Overall survival was 39.3%. Survival decreased with worsening pediatric acute respiratory distress syndrome: no pediatric acute respiratory distress syndrome 66.7%, mild 63.6%, odds ratio = 1.1 (95% CI, 0.3-4.2; p = 0.84), moderate 52.8%, odds ratio = 1.8 (95% CI, 0.6-5.5; p = 0.31), and severe 24.6%, odds ratio = 6.1 (95% CI, 2.1-17.8; p < 0.001). Nonsurvivors were more likely to have multiple consecutive days at moderate and severe pediatric acute respiratory distress syndrome (p < 0.001). Moderate and severe patients had longer PICU length of stay (p = 0.01) and longer mechanical ventilation course (p = 0.02) when compared with those with mild or no pediatric acute respiratory distress syndrome. Nonsurvivors had a higher median maximum oxygenation index than survivors at 28.6 (interquartile range, 15.5-49.9) versus 15.0 (interquartile range, 8.4-29.6) (p < 0.0001). CONCLUSION: In this multicenter cohort, the majority of pediatric allogeneic hematopoietic stem cell transplant patients with respiratory failure met oxygenation criteria for pediatric acute respiratory distress syndrome based on the Pediatric Acute Lung Injury Consensus Conference definition within the first week of invasive mechanical ventilation. Length of invasive mechanical ventilation, length of PICU stay, and mortality increased as the severity of pediatric acute respiratory distress syndrome worsened.

An Evaluation of Various Ventilator-Associated Infection Criteria in a PICU.

OBJECTIVE: To describe characteristics and overlap associated with various ventilator-associated infection criteria in the PICU. DESIGN: Retrospective observational study. SETTING: A quaternary care children's hospital PICU. PATIENTS: Children ventilated more than 48 hours, excluding patients with tracheostomy. INTERVENTIONS: None. MEASUREMENTS AND MAIN RESULTS: Ventilator-associated infection, including pneumonia, infection-related ventilator-associated condition, tracheobronchitis, and lower respiratory tract infection were defined according to criteria from the Centers for Disease Control and Prevention or medical literature. Clinical data were abstracted to assign diagnoses of each ventilator-associated infection. In 300 episodes of mechanical ventilation, there were 30 individual episodes of ventilator-associated infection. Nine episodes met more than one definition. Rates per 1,000 ventilator days were 2.60 for ventilator-associated pneumonia, 2.16 for infection-related ventilator-associated condition, 5.19 for ventilator-associated tracheobronchitis, and 6.92 for lower respiratory tract infection. The rate of any ventilator-associated infection was 12.98 per 1,000 ventilator days. Individual criteria had similar risk factors and outcomes. Risk factors for development of any ventilator-associated infection included older age (p = 0.003) and trauma (p = 0.007), while less cardiac surgery patients developed ventilator-associated infection (p = 0.015). On multivariate analysis, trauma was the only independent risk factor (adjusted odds ratio, 3.10; 95% CI, 1.15-8.38). Developing any ventilator-associated infection was associated with longer duration of mechanical ventilation (p < 0.001) and longer PICU length of stay (p < 0.001) but not PICU mortality (p = 0.523). CONCLUSIONS: There is little overlap in diagnosis of various ventilator-associated infection. However, the risk factors and outcomes associated with individual criteria are similar, indicating that they may have validity in identifying true pathology. Ventilator-associated infection in general is likely a larger problem than indicated by low hospital-reported rates of ventilator-associated pneumonia. There is clinical confusion due to the presence of several diagnostic criteria for ventilator-associated infection. Developing a more inclusive and clinically relevant criterion for diagnosing ventilator-associated infection is warranted to accurately assess their impact and improve guidance for clinicians in evaluating and treating ventilator-associated infection.

Invasive Mechanical Ventilation and Mortality in Pediatric Hematopoietic Stem Cell Transplantation: A Multicenter Study.

OBJECTIVE: To establish the current respiratory practice patterns in pediatric hematopoietic stem cell transplant patients and investigate their associations with mortality across multiple centers. DESIGN: Retrospective cohort between 2009 and 2014. SETTING: Twelve children's hospitals in the United States. PATIENTS: Two hundred twenty-two pediatric allogeneic hematopoietic stem cell transplant recipients with acute respiratory failure using invasive mechanical ventilation. INTERVENTIONS: None. MEASUREMENTS AND MAIN RESULTS: PICU mortality of our cohort was 60.4%. Mortality at 180 days post PICU discharge was 74%. Length of PICU stay prior to initiation of invasive mechanical ventilation was significantly lower in survivors, and the odds of mortality increased for longer length of PICU stay prior to intubation. A total of 91 patients (41%) received noninvasive ventilation at some point during their PICU stay prior to intubation. Noninvasive ventilation use preintubation was associated with increased mortality (odds ratio, 2.1; 95% CI, 1.2-3.6; p = 0.010). Patients ventilated longer than 15 days had higher odds of death (odds ratio, 2.4; 95% CI, 1.3-4.2; p = 0.004). Almost 40% of patients (n = 85) were placed on high-frequency oscillatory ventilation with a mortality of 76.5% (odds ratio, 3.3; 95% CI, 1.7-6.5; p = 0.0004). Of the 20 patients who survived high-frequency oscillatory ventilation, 18 were placed on high-frequency oscillatory ventilation no later than the third day of invasive mechanical ventilation. In this subset of 85 patients, transition to high-frequency oscillatory ventilation within 2 days of the start of invasive mechanical ventilation resulted in a 76% decrease in the odds of death compared with those who transitioned to high-frequency oscillatory ventilation later in the invasive mechanical ventilation course. CONCLUSIONS: This study suggests that perhaps earlier more aggressive critical care interventions in the pediatric hematopoietic stem cell transplant patient with respiratory failure requiring invasive mechanical ventilation may offer an opportunity to improve outcomes.

Deep Sedation for Pediatric Dental Procedures: Is this a Safe and Effective Option?

OBJECTIVE: Sedation may be needed for safe, effective completion of pediatric dental procedures. Procedural sedation is performed in a children's hospital based dental office. The three sedation approaches: a propofol-only (P-O) approach (2-3 mg/kg titrated to the needed level of sedation), an approach that includes either i.v. ketamine (K+P) (0.25 or 0.5 mg/kg) or i.v. fentanyl (F+P) (0.5-1 mcg/kg) prior to propofol administration. We sought to determine safety and efficacy of various propofol based sedation protocols. STUDY DESIGN: Retrospective review of 222 patients receiving a propofol-only (P-O), ketamine+propofol (K+P) or fentanyl+propofol (F+P) approach. RESULTS: There were 44 patients in P-O group, 154 in K+P group and 24 in F+P group with mean age (4.8±3.4 y) and mean weight (19.7±6.7 kg). All the patients completed procedures successfully. Mild hypoxemia occurred in 24% of cases and resolved with nasal cannula. Mean total dose of propofol was similar in all groups (P-O 8.2 mg/kg, K+P 9.5 mg/kg, F+P 9.6 mg/kg, p=0.15). Although procedure and recovery times were similar in all groups, discharge times in K+P group were significantly shorter than P-O group and F+P group respectively (K+P 9.35±8.93.min, P-O 13.57±10.42 min, F+P 10.42±4.40 p= 0.002). CONCLUSION: Sedation can be accomplished safely and effectively in a children's hospital based dental office using propofol-based sedation.

Inconsistencies in care of the pediatric hematopoietic stem cell transplant recipient with respiratory failure: opportunity for standardization and improved outcome.

There is variability in critical care outcome of the HSCT recipient. One potential reason may be due to the inconsistent ventilation approaches. To quantitate this variability, we conducted a survey to assess self-reported use of ventilation and adjunctive strategies for the HSCT recipient. Electronic survey, open from June 2012 through January 201, distributed through the Pediatric Acute Lung Injury and Sepsis Investigators network electronic mailing list. Ninety-four individual responses were from 36 different institutions. The majority indicated that HSCT recipients requiring critical care were admitted to the general PICU. The vast majority (89%) endorsed routine practice of low-tidal-volume ventilation strategies. More than half stated that pressure-regulated volume control is the starting mode of choice. Eighty-three percent felt their group practiced early initiation of lung protective strategies. Eleven percent encouraged "early transition" to HFOV. Inhaled nitric oxide and milrinone were reported at the highest frequencies, but the majority used these empirically. Opinions regarding variables that affect outcomes of the HSCT were diverse. The estimated mortality of HSCT patients with respiratory was highly variable. Strategies for ventilation and oxygenation, use of HFOV, and adjunctive therapies are variable among pediatric intensivists.

Vasovagal syncope and severe bradycardia following intranasal dexmedetomidine for pediatric procedural sedation.

We report syncope and bradycardia in an 11-year-old girl following administration of intranasal dexmedetomidine for sedation for a voiding cystourethrogram. Following successful completion of VCUG and a 60-min recovery period, the patient's level of consciousness and vital signs returned to presedation levels. Upon leaving the sedation area, the patient collapsed, with no apparent inciting event. The patient quickly regained consciousness and no injury occurred. The primary abnormality found was persistent bradycardia, and she was admitted to the hospital for telemetric observation. The bradycardia lasted ~2 h, and further cardiac workup revealed no underlying abnormality. Unanticipated and previously unreported outcomes may be witnessed as we expand the use of certain sedatives to alternative routes of administration.

Successful use of intravenous dexmedetomidine for magnetic resonance imaging sedation in autistic children.

OBJECTIVES: Autism and autism spectrum disorders (A/ASD) represent a family of neurodevelopmental conditions that are associated with overactive, difficult-to-control behaviors. Sedating these patients for magnetic resonance imaging (MRI) poses challenges. Children with A/ASD were examined against clinical controls to determine the effectiveness and safety of intravenous (IV) dexmedetomidine for deep sedation. METHODS: The quality assurance data on all of the children who received IV dexmedetomidine sedation for MRI between July 2007 and December 2012 were reviewed. Patients in both groups were sedated by an intensivist-based team with a standard plan of 2 µg/kg IV dexmedetomidine administered for 10 minutes followed by an infusion of 1 µg · kg(-1)· hour(-1). The amount of IV dexmedetomidine was titrated to the deep level of sedation. A total of 56 patients in the A/ASD group and 107 in the control group were sedated with no reported sedation failures. Sedation parameters were compared between the A/ASD and control groups using analysis of covariance models, controlling for age, sex, and weight. RESULTS: Children in the A/ASD group were predominantly male (73%) and older (6.1 ± 0.3 years) than children in the control group (56%; 5.0 ± 0.2 years; P < 0.05 for both). Procedure time was significantly shorter for patients in the A/ASD group than in control patients (34.6 ± 2.4 vs 44.3 ± 1.6 minutes; P < 0.05). The A/ASD and control groups required a similar IV bolus of dexmedetomidine (2.6 µg/kg ± 0.1 vs 2.4 µg/kg ± 0.10; P = 0.29), with a significantly lower infusion dose in the A/ASD group (0.74 µg/kg ± 0.05 vs 0.89 µg/kg ± 0.03; P < 0.05). Heart rates were similar in the A/ASD group and the control group (67.0 beats per minute ± 1.6 vs 69.3 ± 1.1 beats per minute; P = 0.250). There were no complications. Recovery time was approximately 7 minutes longer in the A/ASD group than in the control group, but this was nonsignificant (101.2 ± 3.5 minutes vs 94.2 ± 2.4 minutes; P = 0.12). Analyses were performed using analysis of covariance methods and generalized linear models to control for age, sex, and weight. CONCLUSIONS: Children with A/ASD can be successfully sedated for MRIs with IV dexmedetomidine without complications.

Alteplase use for malfunctioning central venous catheters correlates with catheter-associated bloodstream infections.

OBJECTIVES: A catheter thrombosis and the presence of a catheter-associated bloodstream infection (CBSI) often occur simultaneously, but it is unclear if or to what degree the two complications relate. Several animal and adult studies indicate a relationship between fibrin sheaths and thrombi in the development of CBSIs. To date, there has been limited human investigation in the pediatric population to determine a clear link between the presence of a thrombus and bacteremia. The use of alteplase for malfunctioning central venous catheter may indicate the formation of intraluminal thrombus or fibrin sheath. A catheter that requires alteplase is at higher risk of a CBSI. DESIGN: A retrospective chart review from July 2008 to December 2010. SETTING: PICU. PATIENTS: All patients with central catheters admitted to the PICU. INTERVENTIONS: No interventions performed with the retrospective study. MEASUREMENTS: Number of total central venous catheters, number of central venous catheters that received treatment with alteplase, and number of CBSIs. MAIN RESULTS: Preliminary data during the study period identified 3,289 central venous catheters. Twelve percent of these catheters required at least one dose of alteplase. There were 40 CBSIs during this same time period of which 28% received alteplase during the 5 days preceding the positive blood culture. The odds ratio for getting a CBSI when alteplase is administered is 2.87 (confidence interval 1.42-5.80; p = 0.002). The average age of the central venous catheters at time of infection was not statistically different, 16.1 days in the alteplase catheters compared with 25.6 days for the catheters that did not receive alteplase (p = 0.6). CONCLUSIONS: There is a positive correlation between the use of alteplase for malfunctioning central venous catheters and the development of a CASBI. This is likely associated with the presence of an intraluminal fibrin sheath or thrombus. This study adds evidence linking thrombus formation to CBSI.