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1.
JAMA ; 319(10): 1002-1012, 2018 03 13.
Artigo em Inglês | MEDLINE | ID: mdl-29486493

RESUMO

Importance: There is limited evidence that the use of severity of illness scores in pediatric patients can facilitate timely admission to the intensive care unit or improve patient outcomes. Objective: To determine the effect of the Bedside Paediatric Early Warning System (BedsidePEWS) on all-cause hospital mortality and late admission to the intensive care unit (ICU), cardiac arrest, and ICU resource use. Design, Setting, and Participants: A multicenter cluster randomized trial of 21 hospitals located in 7 countries (Belgium, Canada, England, Ireland, Italy, New Zealand, and the Netherlands) that provided inpatient pediatric care for infants (gestational age ≥37 weeks) to teenagers (aged ≤18 years). Participating hospitals had continuous physician staffing and subspecialized pediatric services. Patient enrollment began on February 28, 2011, and ended on June 21, 2015. Follow-up ended on July 19, 2015. Interventions: The BedsidePEWS intervention (10 hospitals) was compared with usual care (no severity of illness score; 11 hospitals). Main Outcomes and Measures: The primary outcome was all-cause hospital mortality. The secondary outcome was a significant clinical deterioration event, which was defined as a composite outcome reflecting late ICU admission. Regression analyses accounted for hospital-level clustering and baseline rates. Results: Among 144 539 patient discharges at 21 randomized hospitals, there were 559 443 patient-days and 144 539 patients (100%) completed the trial. All-cause hospital mortality was 1.93 per 1000 patient discharges at hospitals with BedsidePEWS and 1.56 per 1000 patient discharges at hospitals with usual care (adjusted between-group rate difference, 0.01 [95% CI, -0.80 to 0.81 per 1000 patient discharges]; adjusted odds ratio, 1.01 [95% CI, 0.61 to 1.69]; P = .96). Significant clinical deterioration events occurred during 0.50 per 1000 patient-days at hospitals with BedsidePEWS vs 0.84 per 1000 patient-days at hospitals with usual care (adjusted between-group rate difference, -0.34 [95% CI, -0.73 to 0.05 per 1000 patient-days]; adjusted rate ratio, 0.77 [95% CI, 0.61 to 0.97]; P = .03). Conclusions and Relevance: Implementation of the Bedside Paediatric Early Warning System compared with usual care did not significantly decrease all-cause mortality among hospitalized pediatric patients. These findings do not support the use of this system to reduce mortality. Trial Registration: clinicaltrials.gov Identifier: NCT01260831.


Assuntos
Técnicas de Apoio para a Decisão , Parada Cardíaca/diagnóstico , Mortalidade Hospitalar , Índice de Gravidade de Doença , Criança , Mortalidade da Criança , Parada Cardíaca/prevenção & controle , Hospitalização , Humanos , Unidades de Terapia Intensiva Pediátrica , Fatores de Tempo
2.
Trials ; 16: 245, 2015 Jun 02.
Artigo em Inglês | MEDLINE | ID: mdl-26033094

RESUMO

BACKGROUND: The prevention of near and actual cardiopulmonary arrest in hospitalized children is a patient safety imperative. Prevention is contingent upon the timely identification, referral and treatment of children who are deteriorating clinically. We designed and validated a documentation-based system of care to permit identification and referral as well as facilitate provision of timely treatment. We called it the Bedside Paediatric Early Warning System (BedsidePEWS). Here we describe the rationale for the design, intervention and outcomes of the study entitled Evaluating Processes and Outcomes of Children in Hospital (EPOCH). METHODS/DESIGN: EPOCH is a cluster-randomized trial of the BedsidePEWS. The unit of randomization is the participating hospital. Eligible hospitals have a Pediatric Intensive Care Unit (PICU), are anticipated to have organizational stability throughout the study, are not using a severity of illness score in hospital wards and are willing to be randomized. Patients are >37 weeks gestational age and <18 years and are hospitalized in inpatient ward areas during all or part of their hospital admission. Randomization is to either BedsidePEWS or control (no severity of illness score) in a 1:1 ratio within two strata (<200, ≥ 200 hospital beds). All-cause hospital mortality is the selected primary outcome. It is objective, independent of do-not-resuscitate status and can be reliably measured. The secondary outcomes include (1) clinical outcomes: clinical deterioration, severity of illness at and during ICU admission, and potentially preventable cardiac arrest; (2) processes of care outcomes: immediate calls for assistance, hospital and ICU readmission, and perceptions of healthcare professionals; and (3) resource utilization: ICU days and use of ICU therapies. DISCUSSION: Following funding by the Canadian Institutes of Health Research and local ethical approvals, site enrollment started in 2010 and was closed in February 2014. Patient enrollment is anticipated to be complete in July 2015. The results of EPOCH will strengthen the scientific basis for local, regional, provincial and national decision-making and for the recommendations of national and international bodies. If negative, the costs of hospital-wide implementation can be avoided. If positive, EPOCH will have provided a scientific justification for the major system-level changes required for implementation. TRIAL REGISTRATION: NCT01260831 ClinicalTrials.gov date: 14 December 2010.


Assuntos
Técnicas de Apoio para a Decisão , Parada Cardíaca/prevenção & controle , Hospitais , Avaliação de Processos em Cuidados de Saúde , Adolescente , Canadá , Criança , Mortalidade da Criança , Pré-Escolar , Diagnóstico Precoce , Feminino , Pesquisa sobre Serviços de Saúde , Parada Cardíaca/diagnóstico , Parada Cardíaca/etiologia , Parada Cardíaca/mortalidade , Mortalidade Hospitalar , Humanos , Lactente , Mortalidade Infantil , Recém-Nascido , Unidades de Terapia Intensiva Pediátrica , Masculino , Valor Preditivo dos Testes , Encaminhamento e Consulta , Projetos de Pesquisa , Fatores de Risco , Índice de Gravidade de Doença , Fatores de Tempo , Resultado do Tratamento
3.
Crit Care Med ; 40(8): 2400-6, 2012 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-22809910

RESUMO

OBJECTIVE: Cerebral perfusion pressure<40 mm Hg following pediatric traumatic brain injury has been associated with increased mortality independent of age, and current guidelines recommend maintaining cerebral perfusion pressure between 40 mm Hg-60 mm Hg. Although adult traumatic brain injury studies have observed an increased risk of complications associated with targeting a cerebral perfusion pressure>70, we hypothesize that targeting a cerebral perfusion pressure of 70 mm Hg with the use of phenylephrine early after injury in the immature brain will be neuroprotective. DESIGN: Animals were randomly assigned to injury with a cerebral perfusion pressure of 70 mm Hg or 40 mm Hg. Diffuse traumatic brain injury was produced by a single rapid rotation of the head in the axial plane. Cerebral microdialysis, brain tissue oxygen, intracranial pressure, and cerebral blood flow were measured 30 min-6 hrs postinjury. One hour after injury, cerebral perfusion pressure was manipulated with the vasoconstrictor phenylephrine. Animals were euthanized 6 hrs posttraumatic brain injury, brains fixed, and stained to assess regions of cell injury and axonal dysfunction. SETTING: University center. SUBJECT: Twenty-one 4-wk-old female swine. MEASUREMENTS AND MAIN RESULTS: Augmentation of cerebral perfusion pressure to 70 mm Hg resulted in no change in axonal dysfunction, but significantly smaller cell injury volumes at 6 hrs postinjury compared to cerebral perfusion pressure 40 (1.1% vs. 7.4%, p<.05). Microdialysis lactate/pyruvate ratios were improved at cerebral perfusion pressure 70 compared to cerebral perfusion pressure 40. Cerebral blood flow was higher in the cerebral perfusion pressure 70 group but did not reach statistical significance. Phenylephrine was well tolerated and there were no observed increases in serum lactate or intracranial pressure in either group. CONCLUSIONS: Targeting a cerebral perfusion pressure of 70 mm Hg resulted in a greater reduction in metabolic crisis and cell injury volumes compared to a cerebral perfusion pressure of 40 mm Hg in an immature swine model. Early aggressive cerebral perfusion pressure augmentation to a cerebral perfusion pressure of 70 mm Hg in pediatric traumatic brain injury before severe intracranial hypertension has the potential to be neuroprotective, and further investigations are needed.


Assuntos
Lesões Encefálicas/tratamento farmacológico , Circulação Cerebrovascular/efeitos dos fármacos , Circulação Cerebrovascular/fisiologia , Fármacos Neuroprotetores/uso terapêutico , Fenilefrina/uso terapêutico , Animais , Encéfalo/patologia , Encéfalo/fisiopatologia , Lesões Encefálicas/patologia , Lesões Encefálicas/fisiopatologia , Modelos Animais de Doenças , Feminino , Microdiálise , Monitorização Fisiológica , Suínos
4.
Crit Care Med ; 40(7): 2190-5, 2012 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-22564956

RESUMO

OBJECTIVE: Attending physicians are only required to provide in-hospital coverage during daytime hours in many pediatric intensive care units. An in-hospital 24-hr pediatric intensive care unit attending coverage model has been increasingly popular, but the impact of 24-hr, in-hospital attending coverage on care processes and outcomes has not been reported. We compared processes of care and outcomes before and after the implementation of a 24-hr in-hospital pediatric intensive care unit attending physician model. DESIGN: Retrospective comparison of before and after cohorts. SETTING: A single large, academic tertiary medical/surgical pediatric intensive care unit. PATIENTS: : Pediatric intensive care unit admissions in 2000-2006. INTERVENTION: Transition to 24-hr from 12-hr in-hospital pediatric critical care attending physician coverage model in January 2004. MEASUREMENTS AND MAIN RESULTS: A total of 18,702 patients were admitted to intensive care unit: 8,520 in 24 hrs; 10,182 in 12 hrs. Duration of mechanical ventilation was lower (median 33 hrs [interquartile range 12-88] vs. 48 hrs [interquartile range 16-133], adjusted reduction of 35% [95% confidence interval 25%-44%], p < .001) and intensive care unit length of stay was shorter (median 2 days [interquartile range 1-4] vs. 2 days [interquartile range 1-5], adjusted p < .001) for 24 hr vs. 12 hr coverage. The reduction in mechanical ventilation hours was similar when noninvasive, mechanical ventilation was included in ventilation hours (median 42 hrs vs. 56 hrs, adjusted reduction in ventilation hours: 33% [95% confidence interval 20-45], p < .001). Intensive care unit mortality was not significantly different (2.2% vs. 2.5%, adjusted p =.23). These associations were consistent across daytime and nighttime admissions, weekend and weekday admissions, and among subgroups with higher Pediatric Risk of Mortality III scores, postsurgical patients, and histories of previous intensive care unit admission. CONCLUSIONS: Implementation of 24-hr in-hospital pediatric critical care attending coverage was associated with shorter duration of mechanical ventilation and shorter length of intensive care unit stay. After accounting for potential confounders, this finding was consistent across a broad spectrum of critically ill children.


Assuntos
Plantão Médico , Unidades de Terapia Intensiva Pediátrica , Corpo Clínico Hospitalar , Assistência Noturna , Centros Médicos Acadêmicos , Adolescente , Criança , Pré-Escolar , Estudos de Coortes , Feminino , Mortalidade Hospitalar , Humanos , Lactente , Tempo de Internação/estatística & dados numéricos , Masculino , Análise Multivariada , Admissão do Paciente/estatística & dados numéricos , Admissão e Escalonamento de Pessoal , Respiração Artificial/estatística & dados numéricos , Estudos Retrospectivos
5.
Respir Care ; 57(7): 1121-8, 2012 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-22273157

RESUMO

OBJECTIVE: To develop a scoring system that can assess the multidisciplinary management of respiratory failure in a pediatric ICU. METHODS: In a single tertiary pediatric ICU we conducted a simulation-based evaluation in a patient care area auxiliary to the ICU. The subjects were pediatric and emergency medicine residents, nurses, and respiratory therapists who work in the pediatric ICU. A multidisciplinary focus group with experienced providers in pediatric ICU airway management and patient safety specialists was formed. A task-based scoring instrument was developed to evaluate a primary airway provider's performance through Healthcare Failure Mode and Effect Analysis. Reliability and validity of the instrument were evaluated using multidisciplinary simulation-based airway management training sessions. Each session was evaluated by 3 independent expert raters. A global assessment of the team performance and the previous experience in training were used to evaluate the validity of the instrument. RESULTS: The Just-in-Time Pediatric Airway Provider Performance Scale (JIT-PAPPS) version 3, with 34 task-based items (14 technical, 20 behavioral), was developed. Eighty-five teams led by resident airway providers were evaluated by 3 raters. The intraclass correlation coefficient for raters was 0.64. The JIT-PAPPS score correlated well with the global rating scale (r = 0.71, P < .001). Mean total scores across the teams were positively associated with resident previous training participation (ß coefficient 7.1 ± 0.9, P < .001), suggesting good validity of the scale. CONCLUSIONS: A task-based scoring instrument for a primary airway provider's performance with a multidisciplinary pediatric ICU team on simulated pediatric respiratory failure was developed. Reliability and validity evaluation supports the developed scale.


Assuntos
Unidades de Terapia Intensiva Pediátrica , Intubação Intratraqueal , Equipe de Assistência ao Paciente/organização & administração , Insuficiência Respiratória/terapia , Manuseio das Vias Aéreas , Criança , Competência Clínica , Educação Continuada , Humanos , Psicometria , Reprodutibilidade dos Testes
6.
Pediatr Crit Care Med ; 13(1): e5-10, 2012 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-21057359

RESUMO

OBJECTIVE: To characterize tracheal intubation process of care and safety outcomes in a large tertiary pediatric intensive care unit using a pediatric adaptation of the National Emergency Airway Registry. Variances in process of care and safety outcome of intubation in the pediatric intensive care unit have not been described. We hypothesize that tracheal intubation is a common but high-risk procedure and that the novel pediatric adaptation of the National Emergency Airway Registry is a feasible tool to capture variances in process of care and outcomes. DESIGN: Prospective descriptive study. SETTING: A single 45-bed tertiary noncardiac pediatric intensive care unit in a large university-affiliated children's hospital. PATIENTS: Critically ill children who required intubation in the pediatric intensive care unit. INTERVENTIONS: Airway management data were prospectively collected for all initial airway management from July 2007 through September 2008 using the National Emergency Airway Registry tool tailored for pediatric application with explicit operational definitions. MEASUREMENT AND MAIN RESULTS: One hundred ninety-seven initial intubation encounters were reported (averaging one every 2.3 days). The first course intubation method was oral intubation in 181 (91.9%) and nasal in 16 (9.1%). Unwanted tracheal intubation-associated events were frequently reported (n = 38 [19.3%]), but severe tracheal intubation-associated events were rare (n = 6 [3.0%]). Esophageal intubation with immediate recognition was the most common tracheal intubation-associated event (n = 22). Desaturation <80% was reported in 51 of 183 (27.7%) and more than two intubation attempts in 30 of 196 (15.3%), both associated with occurrence of a tracheal intubation-associated event (p < .001, p = .001, respectively). Interestingly, patient age, history of difficult airway, and first attempt by resident were not associated with tracheal intubation-associated events. CONCLUSIONS: Unwanted tracheal intubation-associated events occurred frequently, but severe tracheal intubation-associated events were rare. Our novel registry can be used to describe the pediatric intensive care unit tracheal intubation procedural process of care and safety outcomes.


Assuntos
Cuidados Críticos/métodos , Unidades de Terapia Intensiva Pediátrica , Intubação Intratraqueal/métodos , Gestão da Segurança , Criança , Pré-Escolar , Estudos de Coortes , Feminino , Seguimentos , Humanos , Lactente , Intubação Intratraqueal/efeitos adversos , Masculino , Estudos Prospectivos , Medição de Risco
7.
J Hosp Med ; 7(4): 318-24, 2012 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-22106012

RESUMO

BACKGROUND: The pediatric intensive care unit (PICU), with limited number of beds and resource-intensive services, is a key component of patient flow. Because the PICU is a crossroads for many patients, transfer or discharge delays can negatively impact a patient's clinical status and efficiency. OBJECTIVE: The objective of this study was to describe, using direct observation, PICU bed utilization. METHODS: We conducted a real-time, prospective observational study in a convenience sample of days in the PICU of an urban, tertiary-care children's hospital. RESULTS: Among 824 observed hours, 19,887 bed-hours were recorded, with 82% being for critical care services and 18% for non-critical care services. Fourteen activities accounted for 95% of bed-hours. Among 200 hours when the PICU was at full capacity, 75% of the time included at least 1 bed that was used for non-critical care services; 37% of the time at least 2 beds. The mean waiting time for a floor bed assignment was 9 hours (median, 5.5 hours) and accounted for 4.62% of all bed-hours observed. CONCLUSIONS: The PICU delivered critical care services most of the time, but periods of non-critical care services represented a significant amount of time. In particular, periods with no bed available for new patients were associated with at least 1 or more PICU beds being used for non-critical care activities. The method should be reproducible in other settings to learn more about the structure and processes of care and patient flow and to make improvements.


Assuntos
Ocupação de Leitos/estatística & dados numéricos , Recursos em Saúde/estatística & dados numéricos , Unidades de Terapia Intensiva Pediátrica/estatística & dados numéricos , Leitos/estatística & dados numéricos , Humanos , Projetos Piloto , Estudos Prospectivos , Fatores de Tempo
8.
Resuscitation ; 83(3): 320-6, 2012 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-22079410

RESUMO

AIM: Cardiopulmonary resuscitation (CPR) guidelines recommend specific chest compression (CC) target depths for children. We quantitatively describe relative anterior-posterior diameter (APD) depth, actual depth, and force of CCs during real CPR events in children. METHODS: CC depth and force were recorded during real CPR events in children ≥8 years using FDA-approved CC sensor. Patient chest APD was measured at conclusion of each CPR event. CC data was stratified and analyzed according to age (pre-puberty, 8-14 years; post-puberty, 15+ years). Relative (% APD) and actual CC depth, corrected for mattress deflection, were assessed and compared with American Heart Association (AHA) 2005 and 2010 pediatric CPR guidelines. RESULTS: 35 events in 32 subjects included 16,158 CCs for data analysis: 16 pre-puberty (CCs=7484, age 11.9±2 years, APD 164.6±25.1 mm); 19 post-puberty (CCs=8674, age 18.0±2.7 years, APD 196.5±30.4 mm). After correction for mattress deflection, 92% of CC delivered to pre-puberty were <1/3 relative APD and 60% of CC were <38 mm actual depth. Mean actual CC depth (36.2±9.6 mm vs. 36.8±9.9 mm, p=0.64), mean relative APD (22.5%±7.0% vs. 19.5±6.7%, p=0.13), and mean CC force (30.7±7.6 kg vs. 33.6±9.4 kg, p=0.07) were not significantly less in pre-puberty vs. post-puberty. CONCLUSIONS: During in-hospital cardiac arrest of children ≥8 years, CCs delivered by resuscitation teams were frequently <1/3 relative APD and <38 mm actual depth after mattress deflection correction, below pediatric and adult target guidelines. Mean CC actual depth and force were not significantly different in pre-puberty and post-puberty. Additional investigation to determine depth of CCs to optimize hemodynamics and outcomes is needed to inform future CPR guidelines.


Assuntos
Reanimação Cardiopulmonar/métodos , Parada Cardíaca/terapia , Massagem Cardíaca/métodos , Adolescente , Criança , Feminino , Humanos , Masculino , Resultado do Tratamento , Adulto Jovem
9.
Pediatrics ; 128(6): e1450-8, 2011 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-22065262

RESUMO

BACKGROUND: The 2009 pandemic influenza A (H1N1) (pH1N1) virus continues to circulate worldwide. Determining the roles of chronic conditions and bacterial coinfection in mortality is difficult because of the limited data for children with pH1N1-related critical illness. METHODS: We identified children (<21 years old) with confirmed or probable pH1N1 admitted to 35 US PICUs from April 15, 2009, through April 15, 2010. We collected data on demographics, baseline health, laboratory results, treatments, and outcomes. RESULTS: Of 838 children with pH1N1 admitted to a PICU, the median age was 6 years, 58% were male, 70% had ≥1 chronic health condition, and 88.2% received oseltamivir (5.8% started before PICU admission). Most patients had respiratory failure with 564 (67.3%) receiving mechanical ventilation; 162 (19.3%) received vasopressors, and 75 (8.9%) died. Overall, 71 (8.5%) of the patients had a presumed diagnosis of early (within 72 hours after PICU admission) Staphylococcus aureus coinfection of the lung with 48% methicillin-resistant S aureus (MRSA). In multivariable analyses, preexisting neurologic conditions or immunosuppression, encephalitis (1.7% of cases), myocarditis (1.4% of cases), early presumed MRSA lung coinfection, and female gender were mortality risk factors. Among 251 previously healthy children, only early presumed MRSA coinfection of the lung (relative risk: 8 [95% confidence interval: 3.1-20.6]; P < .0001) remained a mortality risk factor. CONCLUSIONS: Children with preexisting neurologic conditions and immune compromise were at increased risk of pH1N1-associated death after PICU admission. Secondary complications of pH1N1, including myocarditis, encephalitis, and clinical diagnosis of early presumed MRSA coinfection of the lung, were mortality risk factors.


Assuntos
Vírus da Influenza A Subtipo H1N1 , Influenza Humana/epidemiologia , Pandemias , Adolescente , Criança , Pré-Escolar , Estado Terminal , Feminino , Humanos , Lactente , Influenza Humana/complicações , Influenza Humana/diagnóstico , Masculino , Estudos Retrospectivos , Estados Unidos/epidemiologia , Adulto Jovem
11.
Pediatrics ; 128(1): e145-51, 2011 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-21646262

RESUMO

OBJECTIVE: To investigate the effectiveness of brief bedside cardiopulmonary resuscitation (CPR) training to improve the skill retention of hospital-based pediatric providers. We hypothesized that a low-dose, high-frequency training program (booster training) would improve CPR skill retention. PATIENTS AND METHODS: CPR recording/feedback defibrillators were used to evaluate CPR quality during simulated arrest. Basic life support-certified, hospital-based providers were randomly assigned to 1 of 4 study arms: (1) instructor-only training; (2) automated defibrillator feedback only; (3) instructor training combined with automated feedback; and (4) control (no structured training). Each session (time: 0, 1, 3, and 6 months after training) consisted of a pretraining evaluation (60 seconds), booster training (120 seconds), and a posttraining evaluation (60 seconds). Excellent CPR was defined as chest compression (CC) depth ≥ one-third anterior-posterior chest depth, rate ≥90 and ≤120 CC per minute, ≤20% of CCs with incomplete release (>2500 g), and no flow fraction ≤ 0.30. MEASUREMENTS AND MAIN RESULTS: Eighty-nine providers were randomly assigned; 74 (83%) completed all sessions. Retention of CPR skills was 2.3 times (95% confidence interval [CI]: 1.1-4.5; P=.02) more likely after 2 trainings and 2.9 times (95% CI: 1.4-6.2; P=.005) more likely after 3 trainings. The automated defibrillator feedback only group had lower retention rates compared with the instructor-only training group (odds ratio: 0.41 [95% CI: 0.17-0.97]; P = .043). CONCLUSIONS: Brief bedside booster CPR training improves CPR skill retention. Our data reveal that instructor-led training improves retention compared with automated feedback training alone. Future studies should investigate whether bedside training improves CPR quality during actual pediatric arrests.


Assuntos
Reanimação Cardiopulmonar/educação , Corpo Clínico Hospitalar/educação , Recursos Humanos de Enfermagem Hospitalar/educação , Adolescente , Adulto , Feminino , Humanos , Masculino , Estudos Prospectivos
12.
Neurosurgery ; 69(5): 1139-47; discussion 1147, 2011 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-21670716

RESUMO

BACKGROUND: Small-animal models have been used in traumatic brain injury (TBI) research to investigate the basic mechanisms and pathology of TBI. Unfortunately, successful TBI investigations in small-animal models have not resulted in marked improvements in clinical outcomes of TBI patients. OBJECTIVE: To develop a clinically relevant immature large-animal model of pediatric neurocritical care following TBI. METHODS: Eleven 4-week-old piglets were randomly assigned to either rapid axial head rotation without impact (n = 6) or instrumented sham (n = 5). All animals had an intracranial pressure monitor, brain tissue oxygen tension (Pbto(2)) probe, and cerebral microdialysis probe placed in the frontal lobe and data collected for 6 hours following injury. RESULTS: Injured animals had sustained elevations in intracranial pressure and lactate-pyruvate ratio (LPR), and decreased Pbto(2) compared with sham. Pbto(2) and LPR from separate frontal lobes had strong linear correlation in both sham and injured animals. Neuropathologic examination demonstrated significant axonal injury and infarct volumes in injured animals compared with sham at 6 hours postinjury. Averaged over time, Pbto(2) in both injured and sham animals had a strong inverse correlation with total injury volume. Average LPR had a strong correlation with total injury volume. CONCLUSION: LPR and Pbto(2) can be utilized as serial nonterminal secondary markers in our injury model for neuropathology, and as evaluation metrics for novel interventions and therapeutics in the acute postinjury period. This translational model bridges a vital gap in knowledge between TBI studies in small-animal models and clinical trials in the pediatric TBI population.


Assuntos
Lesões Encefálicas/metabolismo , Lesões Encefálicas/patologia , Cuidados Críticos/métodos , Modelos Animais de Doenças , Microdiálise/métodos , Monitorização Fisiológica/métodos , Suínos , Fatores Etários , Animais , Lesões Encefálicas/terapia , Pediatria
13.
Pediatr Crit Care Med ; 12(3): 282-5, 2011 May.
Artigo em Inglês | MEDLINE | ID: mdl-20921920

RESUMO

OBJECTIVE: To identify opportunities to safely reduce antibiotic use in critically ill children with moderately severe respiratory failure. DESIGN: Prospective observational. SETTING: Four pediatric intensive care units at three American tertiary care children's hospitals. PATIENTS: Children aged 2 months to 18 yrs who were mechanically ventilated, had an abnormal chest radiograph, and for whom the attending physicians had initiated antibiotics for presumed bacterial pneumonia. INTERVENTION: Nonbronchoscopic bronchoalveolar lavage. METHODS AND MAIN RESULTS: Eligible children were subjected to nonbronchoscopic bronchoalveolar lavage within 12 hrs of initiating antibiotics. The concentration of bacteria in the lavage fluid was determined by quantitative assay, and the diagnosis of pneumonia was confirmed if >10 (4)pathogenic bacteria/mL were cultivated. Twenty-one subjects were enrolled, in whom 20 nonbronchoscopic bronchoalveolar lavage procedures were completed. Six of 20 subjects had nonbronchoscopic bronchoalveolar lavage results confirmatory of bacterial pneumonia, three additional subjects had bacteria isolated at concentrations below levels conventionally used to diagnose bacterial pneumonia, and the remaining 11 demonstrated no growth. Clinical parameters reflective of severity of disease and laboratory parameters reflective of systemic and local inflammation were tested for their association with a positive nonbronchoscopic bronchoalveolar lavage, but none was demonstrated. CONCLUSIONS: Eleven of 20 mechanically ventilated children treated with antibiotics for presumed infectious pneumonia had undetectable concentrations of bacteria in their lower respiratory tract, and three others had organisms present at low concentrations, suggesting that opportunities exist to reduce antibiotic exposure in this population.


Assuntos
Antibioticoprofilaxia/estatística & dados numéricos , Ventiladores Mecânicos , Adolescente , Antibacterianos/uso terapêutico , Criança , Pré-Escolar , Cuidados Críticos , Farmacorresistência Bacteriana/efeitos dos fármacos , Humanos , Lactente , Pneumonia Bacteriana/prevenção & controle , Estudos Prospectivos
14.
Pediatr Crit Care Med ; 12(3): e127-35, 2011 May.
Artigo em Inglês | MEDLINE | ID: mdl-20431502

RESUMO

OBJECTIVE: To assess the feasibility, effectiveness, side effects, and adverse events associated with a standardized surface cooling protocol. Induced therapeutic hypothermia after pediatric cardiac arrest is an important intervention. DESIGN: Prospective intervention trial. SETTING: Urban, tertiary care children's hospital. PATIENTS: Twelve pediatric cardiac arrest survivors. INTERVENTIONS: Standardized surface cooling protocol. MEASUREMENTS AND MAIN RESULTS: Patients (age: median, 1.5 yrs; interquartile range, 0.5-6.25; cardiopulmonary resuscitation duration: median, 18 mins; interquartile range, 10-45) were cooled by a standard surface cooling protocol for rapid induction and maintenance of goal rectal temperature (T) 32°C-34°C for 24 hrs, with prospectively defined rescue protocols. Side effects and clinical interventions were recorded. Median time to rectal T ≤34°C was 1.5 (1, 1.5) hrs from cooling initiation and 6 (5, 6.5) hrs from arrest. T was documented every 30 mins. Maintenance target T 32°C-34°C was attained in 78% (414 of 531) of measurements, overshoot hypothermia <32°C in 15% (81 of 531), and overshoot hyperthermia >34°C in 7% (36 of 531). Mean bias between rectal vs. esophageal T was -0.42°C (95% confidence interval, -0.49 to -0.35), and between rectal and bladder T was 0.16°C (95% confidence interval, 0.11-0.22). Side effects observed included: hypokalemia <3.0 mEq/L in 67% of patients and bradycardia <2% for age in 58%. There were no episodes of bleeding or ventricular tachyarrhythmia that required treatment. Six (50%) of 12 patients survived to discharge. CONCLUSIONS: A standard surface cooling protocol achieved rapid induction of hypothermia after pediatric cardiac arrest. During maintenance of hypothermia, 78% of measures were within target T 32°C-34°C. Commonly employed temperature sites (esophageal, rectal, and bladder) were similar. Overshoot hypothermia and associated side effects were common, but there were no serious adverse events attributable to induced therapeutic hypothermia in this case series. Surface cooling protocols to induce and maintain therapeutic hypothermia after pediatric cardiac arrest are potentially feasible.


Assuntos
Parada Cardíaca/terapia , Hipotermia Induzida/métodos , Criança , Pré-Escolar , Estudos de Viabilidade , Feminino , Hospitais Pediátricos , Humanos , Hipotermia Induzida/efeitos adversos , Hipotermia Induzida/normas , Lactente , Masculino , Estudos Prospectivos
15.
Pediatr Crit Care Med ; 12(4): 406-14, 2011 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-20935588

RESUMO

OBJECTIVE: Tracheal intubation in the pediatric intensive care unit is often performed in emergency situations with high risks. Simulation has been recognized as an effective methodology to train both technical and teamwork skills. Our objectives were to develop a feasible tool to evaluate team performance during tracheal intubation in the pediatric intensive care unit and to apply the tool in the clinical setting to determine whether multidisciplinary teams with a higher number of simulation-trained providers exhibit more proficient performance. DESIGN: Prospective, observational pilot study. SETTING: Single tertiary children's hospital pediatric intensive care unit. SUBJECTS: Pediatric and emergency medicine residents, pediatric intensive care unit nurses, and respiratory therapists from October 2007 to June 2008. INTERVENTIONS: A pediatric intensive care unit on-call resident, a pediatric intensive care unit nurse, and a respiratory therapist received simulation-based multidisciplinary airway management training every morning. An assessment tool for team technical and behavioral skills was developed. Independent trained observers rated actual intubations in the pediatric intensive care unit by using this tool. MEASUREMENTS AND MAIN RESULTS: For observer training, two independent raters (research assistants 1 and 2) evaluated a total of 53 training sessions (research assistant 1, 16; research assistant 2, 37). The correlation coefficient with the facilitator expert (surrogate standard) was .73 for research assistant 1 and .88 for research assistant 2 (p ≤ .001 for both) in the total score, .84 for research assistant 1 and .77 for research assistant 2 (p < .001 for both) in the technical domain, and .63 for research assistant 1 (p = .009) and .84 for research assistant 2 (p < .001) in the behavioral domain. The correlation coefficient was lower in video-based observation (.62 vs. .88, on-site). For clinical observation, 15 intubations were observed in real time by raters. The performance by a team with two or more simulation-trained members was rated higher compared with the team with fewer than two trained members (total score: 127 ± 6 vs. 116 ± 9, p = .012, mean ± sd). CONCLUSIONS: It is feasible to rate the technical and behavioral performance of multidisciplinary airway management teams during real intensive care unit intubation events by using our assessment tool. The presence of two or more multidisciplinary simulation-trained providers is associated with improved performance during real events.


Assuntos
Comportamento Cooperativo , Educação Continuada/métodos , Avaliação de Desempenho Profissional/métodos , Unidades de Terapia Intensiva Pediátrica , Intubação Intratraqueal , Equipe de Assistência ao Paciente , Análise e Desempenho de Tarefas , Adolescente , Ocupações Relacionadas com Saúde/educação , Criança , Pré-Escolar , Estudos de Viabilidade , Humanos , Lactente , Internato e Residência , Recursos Humanos de Enfermagem Hospitalar/educação , Variações Dependentes do Observador , Projetos Piloto , Estudos Prospectivos , Reprodutibilidade dos Testes
16.
Qual Life Res ; 20(2): 205-14, 2011 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-21188538

RESUMO

PURPOSE: The Pediatric Cardiac Quality of Life Inventory (PCQLI) is a disease-specific, health-related quality of life (HRQOL) measure for pediatric heart disease (HD). The purpose of this study was to demonstrate the external validity of PCQLI scores. METHODS: The PCQLI development site (Development sample) and six geographically diverse centers in the United States (Composite sample) recruited pediatric patients with acquired or congenital HD. Item response option variability, scores [Total (TS); Disease Impact (DI) and Psychosocial Impact (PI) subscales], patterns of correlation, and internal consistency were compared between samples. RESULTS: A total of 3,128 patients and parent participants (1,113 Development; 2,015 Composite) were analyzed. Response option variability patterns of all items in both samples were acceptable. Inter-sample score comparisons revealed no differences. Median item-total (Development, 0.57; Composite, 0.59) and item-subscale (Development, DI 0.58, PI 0.59; Composite, DI 0.58, PI 0.56) correlations were moderate. Subscale-subscale (0.79 for both samples) and subscale-total (Development, DI 0.95, PI 0.95; Composite, DI 0.95, PI 0.94) correlations and internal consistency (Development, TS 0.93, DI 0.90, PI 0.84; Composite, TS 0.93, DI 0.89, PI 0.85) were high in both samples. CONCLUSION: PCQLI scores are externally valid across the US pediatric HD population and may be used for multi-center HRQOL studies.


Assuntos
Cardiopatias Congênitas/psicologia , Qualidade de Vida , Inquéritos e Questionários/normas , Adolescente , Adulto , Criança , Estudos Transversais , Feminino , Cardiopatias Congênitas/fisiopatologia , Humanos , Masculino , Pessoa de Meia-Idade , Pais , Estudos Prospectivos , Estados Unidos
17.
Pediatr Crit Care Med ; 12(3): e116-21, 2011 May.
Artigo em Inglês | MEDLINE | ID: mdl-20625336

RESUMO

OBJECTIVE: To investigate the effectiveness of brief bedside "booster" cardiopulmonary resuscitation (CPR) training to improve CPR guideline compliance of hospital-based pediatric providers. DESIGN: Prospective, randomized trial. SETTING: General pediatric wards at Children's Hospital of Philadelphia. SUBJECTS: Sixty-nine Basic Life Support-certified hospital-based providers. INTERVENTION: CPR recording/feedback defibrillators were used to evaluate CPR quality during simulated pediatric arrest. After a 60-sec pretraining CPR evaluation, subjects were randomly assigned to one of three instructional/feedback methods to be used during CPR booster training sessions. All sessions (training/CPR manikin practice) were of equal duration (2 mins) and differed only in the method of corrective feedback given to participants during the session. The study arms were as follows: 1) instructor-only training; 2) automated defibrillator feedback only; and 3) instructor training combined with automated feedback. MEASUREMENTS AND MAIN RESULTS: Before instruction, 57% of the care providers performed compressions within guideline rate recommendations (rate >90 min(-1) and <120 min(-1)); 71% met minimum depth targets (depth, >38 mm); and 36% met overall CPR compliance (rate and depth within targets). After instruction, guideline compliance improved (instructor-only training: rate 52% to 87% [p .01], and overall CPR compliance, 43% to 78% [p < .02]; automated feedback only: rate, 70% to 96% [p = .02], depth, 61% to 100% [p < .01], and overall CPR compliance, 35% to 96% [p < .01]; and instructor training combined with automated feedback: rate 48% to 100% [p < .01], depth, 78% to 100% [p < .02], and overall CPR compliance, 30% to 100% [p < .01]). CONCLUSIONS: Before booster CPR instruction, most certified Pediatric Basic Life Support providers did not perform guideline-compliant CPR. After a brief bedside training, CPR quality improved irrespective of training content (instructor vs. automated feedback). Future studies should investigate bedside training to improve CPR quality during actual pediatric cardiac arrests.


Assuntos
Automação , Reanimação Cardiopulmonar , Competência Clínica , Parada Cardíaca/terapia , Capacitação em Serviço , Pediatria , Adulto , Desfibriladores , Retroalimentação , Feminino , Fidelidade a Diretrizes , Humanos , Masculino , Avaliação de Programas e Projetos de Saúde , Estudos Prospectivos , Qualidade da Assistência à Saúde , Adulto Jovem
20.
Pediatrics ; 126(3): 498-508, 2010 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-20805147

RESUMO

OBJECTIVE: The purpose of this multicenter study was to confirm the validity and reliability of the Pediatric Cardiac Quality of Life Inventory (PCQLI). METHODS: Seven centers recruited pediatric patients (8-18 years of age) with heart disease (HD) and their parents to complete the PCQLI and generic health-related quality of life (Pediatric Quality of Life Inventory [PedsQL]) and non-quality of life (Self-Perception Profile for Children [SPPC]/Self-Perception Profile for Adolescents [SPPA] and Youth Self-Report [YSR]/Child Behavior Checklist [CBCL]) tools. PCQLI construct validity was assessed through correlations of PCQLI scores between patients and parents and with severity of congenital HD, medical care utilization, and PedsQL, SPPC/SPPA, and YSR/CBCL scores. PCQLI test-retest reliability was evaluated. RESULTS: The study enrolled 1605 patient-parent pairs. Construct validity was substantiated by the association of lower PCQLI scores with Fontan palliation and increased numbers of cardiac operations, hospital admissions, and physician visits (P<.001); moderate to good correlations between patient and parent PCQLI scores (r=0.41-0.61; P<.001); and fair to good correlations between PCQLI total scores and PedsQL total (r=0.70-0.76), SPPC/SPPA global self-worth (r=0.43-0.46), YSR/CBCL total competency (r=0.28-0.37), and syndrome and Diagnostic and Statistical Manual of Mental Disorders, Fourth Edition-oriented scale (r=-0.58 to -0.30; P<.001) scores. Test-retest reliability correlations were excellent (r=0.78-0.90; P<.001). CONCLUSIONS: PCQLI scores are valid and reliable for children and adolescents with congenital and acquired HD and may be useful for future research and clinical management.


Assuntos
Cardiopatias , Qualidade de Vida , Inquéritos e Questionários , Adolescente , Adulto , Criança , Estudos Transversais , Feminino , Cardiopatias/terapia , Humanos , Masculino , Pessoa de Meia-Idade , Estudos Prospectivos , Índice de Gravidade de Doença
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