Association of empiric antibiotic selection and clinical outcomes in hospitalised children with severe orbital infections: a retrospective cohort study

OBJECTIVE

To determine the association of initial empiric antibiotic regimens with clinical outcomes in hospitalised children with severe orbital infections.

DESIGN

Multi-centre observational cohort study using data from 2009 to 2018 clinical records.

SETTING

Canadian children's hospitals (7) and community hospitals (3).

PATIENTS

Children between 2 months and 18 years hospitalised for >24 hours with severe orbital infections.

INTERVENTIONS

Empiric intravenous antibiotic regimen in the first 24 hours of hospitalisation.

MAIN OUTCOME MEASURES

Length of hospital stay and surgical intervention using multivariable median regression and multivariate logistic regression, with adjustment for covariates.

RESULTS

Of 1421 patients, 60.0% were male and the median age was 5.5 years (IQR 2.4-9.9). Median length of stay was 86.4 hours (IQR 56.9-137.5) and 180 (12.7%) received surgical intervention. Patients receiving broad-spectrum empiric antibiotics had an increased median length of stay, ranging from an additional 13.8 hours (third generation cephalosporin and anaerobic coverage) to 19.5 hours (third generation cephalosporin, staphylococcal and anaerobic coverage). No antibiotic regimen was associated with a change in the odds of surgical intervention. These findings remained unchanged in sensitivity analyses restricted to more severely ill patients. There was a twofold increase in the percentage of patients receiving the broadest empiric antibiotic regimens containing both staphylococcal and anaerobic coverage from 17.8% in 2009 to 40.3% in 2018.

CONCLUSIONS

Empiric use of broad-spectrum antibiotics with staphylococci and anaerobic coverage was associated with longer length of stay and similar rates of surgery in children with orbital infections. There is an urgent need for comparative effectiveness studies of various antibiotic regimes.

Understanding the use and outcomes of high-flow nasal cannula among infants admitted to Canadian hospitals with bronchiolitis (CanFLO): a protocol for a multicentre, retrospective cohort study

INTRODUCTION

Bronchiolitis is the most common viral lower respiratory tract infection in children under 2 years of age. Respiratory support with high-flow nasal cannula (HFNC) is increasingly used in this patient population with limited understanding of the patients most likely to benefit and considerable practice variability of use. This study aims to understand the factors associated with failure of HFNC support among patients with bronchiolitis and to describe the current practice variations of HFNC use in patients with bronchiolitis in Canadian hospitals including fluid management and parameters to initiate, escalate and discontinue HFNC support.

METHODS AND ANALYSIS

This is a multicentre retrospective cohort study including hospitalised patients aged 0-24 months with bronchiolitis requiring support with HFNC between January 2017 and December 2021. Clinical data will be collected from patient medical records from Canadian hospitals (n=12), including academic and community centres. HFNC failure will be defined as the need for escalation to non-invasive or invasive mechanical ventilation. Factors associated with HFNC failure will be analysed using logistic regression. Descriptive statistics will be used to describe practice variations of HFNC utilisation and management.

ETHICS AND DISSEMINATION

Approval from the Research Ethics Boards (REBs) has been obtained for each participating study site prior to onset of data collection including Clinical Trials Ontario for all Ontario hospital sites and REBs from British Columbia Children's Hospital, Stollery Children's Hospital, Montreal Children's Hospital and CHU Sainte-Justine. Study results will be disseminated through presentation at national/international conferences and publication in high-impact, peer-reviewed journals.

Oxygen Saturation Targets in Infants Hospitalized With Bronchiolitis: A Multicenter Cohort Study

OBJECTIVES

To examine 2 hospital oxygen saturation target policies and clinical outcomes in infants hospitalized with bronchiolitis.

METHODS

This multicenter cohort study used data collected from a randomized clinical trial of infants aged 4 weeks to 24 months, hospitalized with bronchiolitis at children's and community hospitals from 2016 to 2019. We modeled the association between hospital oxygen saturation target policy, either 90% while awake and 88% while asleep (90%/88%) or 90% while awake and asleep (90%/90%), and clinical outcomes.

RESULTS

A total of 162 infants were enrolled at 4 hospitals using a 90%/88% oxygen saturation target and 67 infants at 2 hospitals using a 90%/90% target policy. No significant differences between the 90%/88% group and 90%/90% groups were observed for time to discharge (adjusted hazard ratio, 0.83; 95% confidence interval [CI], 0.61-1.14; P = .25), initiation of supplemental oxygen (adjusted odds ratio [aOR], 0.98; 95% CI, 0.47-2.02; P = .95), time to discontinuation of supplemental oxygen (adjusted hazard ratio, 0.75; 95% CI, 0.44-1.27; P = .28), revisits (aOR, 1.38; 95% CI, 0.52-3.71; P = .52), and parent days missed from work (aOR, 2.41; 95% CI, 0.90-6.41; P = .08). Three infants in the 90%/88% group and none in the 90%/90% group were transferred to the ICU.

CONCLUSIONS

Among infants hospitalized with bronchiolitis, clinical outcomes were similar between a hospital oxygen saturation target policy of 90% while awake and 88% while asleep compared with 90% while awake and asleep. These findings may inform the design of future trials of oxygen saturation targets in bronchiolitis hospital care.

De-implementing low-value continuous pulse oximetry practice in infants hospitalized with bronchiolitis: A multicentre qualitative study

BACKGROUND

Clinical trial evidence supports the routine use of intermittent pulse oximetry in stabilized infants hospitalized with bronchiolitis. However, continuous pulse oximetry use is common.

OBJECTIVE

This study aimed to understand the barriers and facilitators to de-implement continuous pulse oximetry and implement intermittent pulse oximetry in infants hospitalized with stabilized bronchiolitis.

METHODS

This multicentre qualitative study interviewed attending pediatricians, residents, nurses, respiratory therapists, and caregivers of infants hospitalized with bronchiolitis at hospitals in Ontario, Canada, to explore beliefs, attitudes, and experiences regarding pulse oximetry use in bronchiolitis management. Data were analyzed using thematic analysis to understand barriers and facilitators to practice change, mapped to the Consolidated Framework for Implementation Research (CFIR) domains.

RESULTS

Sixty-seven participants from six hospitals were interviewed using individual interviews and focus groups. Healthcare providers emphasized the importance of identifying and understanding who is responsible for bedside pulse oximetry practice (physicians vs. nurses). Clinical experience, knowledge of guidelines, importance versus competing priorities, and the tensions among team members due to practice variation in monitoring, influenced monitoring practice. Nurses believed in the advantages of intermittent monitoring (reduced alarm fatigue, facilitation of timely discharges, and reduced workload). Clinicians identified ways to clarify indications for continuous monitoring (based on patient risk factors), versus indications to transition to intermittent monitoring (established oral feeding, sleeping without desaturations). Caregivers did not express a clear preference for monitoring type; rather, they described the need for clear communication around interpreting monitor readings, management decisions, and care transitions.

CONCLUSIONS

Understanding professional roles, clarity around local practice standards and supporting families' understanding of pulse oximetry practice is essential for practice change. These findings may inform hospital quality improvement efforts to de-implement continuous monitoring in bronchiolitis hospital care.

A Feeding Adequacy Scale for Children With Bronchiolitis: Prospective Multicenter Study

OBJECTIVES

To determine the measurement properties of the Feeding Adequacy Scale (FAS) in young children hospitalized with bronchiolitis.

METHODS

Multicenter cohort study of infants hospitalized with bronchiolitis at children's and community hospitals in Ontario, Canada. Caregivers and nurses completed the FAS, a 10-cm visual analog scale anchored by "not feeding at all" (score 0) and "feeding as when healthy" (score 10). The main outcome measures were feasibility, reliability, validity, and responsiveness of the FAS.

RESULTS

A total of 228 children were included with an average (SD) age of 6.3 (5.4) months. Completing the FAS was feasible for caregivers and nurses, with no floor or ceiling effects. Test-retest reliability was moderate for caregivers (intraclass correlation coefficient [ICC] 2,1 0.73; 95% confidence interval [CI] 0.63-0.80) and good for nurses (ICC 2,1 0.75; 95% CI 0.62-0.83). Interrater reliability between 1 caregiver and 1 nurse was moderate (ICC 1,1 0.55; 95% CI 0.45-0.64). For construct validity, the FAS was negatively associated with length of hospital stay and positively associated with both caregiver and nurse readiness for discharge scores (P values <.0001). The FAS demonstrated clinical improvement from the first FAS score at admission to the last FAS score at discharge, with significant differences between scores for both caregivers and nurses (P values for paired t test <.0001).

CONCLUSIONS

These results provide evidence of the feasibility, reliability, validity, and responsiveness of caregiver-completed and nurse-completed FAS as a measure of feeding adequacy in children hospitalized with bronchiolitis.

Abscess volume as a predictor of surgical intervention in children hospitalized with orbital cellulitis: A multicentre cohort study

IMPORTANCE

Orbital cellulitis with subperiosteal or orbital abscess can result in serious morbidity and mortality in children. Objective volume criterion measurement on cross-sectional imaging is a useful clinical tool to identify patients with abscess who may require surgical drainage.

OBJECTIVE

To determine the predictive value of abscess volume and the optimal volume cut-point for surgical intervention.

DESIGN

We conducted an observational cohort study using medical records from children hospitalized between 2009 and 2018.

SETTING

Multicentre study using data from 6 children's hospitals.

PARTICIPANTS

Children were included if they were between 2 months and 18 years of age and hospitalized for an orbital infection with an abscess confirmed on cross-sectional imaging.

EXPOSURE

Subperiosteal or orbital abscess volume.

MAIN OUTCOME AND MEASURES

The primary outcome was surgical intervention, defined as subperiosteal and/or orbital abscess drainage. Multivariable logistic regression was performed to assess the association of abscess volume with surgery. To determine the optimal abscess volume cut-point, receiver operating characteristic (ROC) analysis was performed using the Youden Index to optimize sensitivity and specificity.

RESULTS

Of the 150 participants (mean [SD] age, 8.5 [4.5] years), 68 (45.3%) underwent surgical intervention. On multivariable analysis, larger abscess volume and non-medial abscess location were associated with surgical intervention (abscess volume: adjusted odds ratio [aOR], 1.46; 95% CI, 1.11-1.93; abscess location: aOR, 3.46; 95% CI, 1.4-8.58). ROC analysis demonstrated an optimal abscess volume cut-point of 1.18 mL [AUC: 0.75 (95% CI 0.67-0.83) sensitivity: 66%; specificity: 79%]. CONCLUSIONS AND RELEVANCE: In this multicentre cohort study of 150 children with subperiosteal or orbital abscess, larger abscess volume and non-medial abscess location were significant predictors of surgical intervention. Children with abscesses >1.18 mL should be considered for surgery.

Variation in the Management of Hospitalized Children With Orbital Cellulitis Over 10 Years

OBJECTIVES

No previous study has examined the management of hospitalized children with orbital cellulitis at both children's and community hospitals across multiple sites in Canada. We describe variation and trends over time in diagnostic testing and imaging, adjunctive agents, empiric antibiotics, and surgical intervention in children hospitalized with orbital cellulitis.

PATIENTS AND METHODS

Multicenter cohort study of 1579 children aged 2 months to 18 years with orbital cellulitis infections admitted to 10 hospitals from 2009 to 2018. We assessed hospital-level variation in the use of diagnostic tests, imaging, antibiotics, adjunctive agents, surgical intervention, and clinical outcomes using X2, Mann-Whitney U, and Kruskal-Wallis tests. The association between clinical management and length of stay was evaluated with median regression analysis with hospital as a fixed effect.

RESULTS

There were significant differences between children's hospitals in usage of C-reactive protein tests (P < .001), computed tomography scans (P = .004), MRI scans (P = .003), intranasal decongestants (P < .001), intranasal corticosteroids (P < .001), intranasal saline spray (P < .001), and systemic corticosteroids (P < .001). Children's hospital patients had significantly longer length of hospital stay compared with community hospitals (P = .001). After adjustment, diagnostic testing, imaging, and subspecialty consults were associated with longer median length of hospital stay at children's hospitals. From 2009 to 2018, C-reactive protein test usage increased from 28.8% to 73.5% (P < .001), whereas erythrocyte sedimentation rate decreased from 31.5% to 14.1% (P < .001).

CONCLUSIONS

There was significant variation in diagnostic test usage and treatments, and increases in test usage and medical intervention rates over time despite minimal changes in surgical interventions and length of stay.

Cost-effectiveness of Intermittent vs Continuous Pulse Oximetry Monitoring in Infants Hospitalized With Stabilized Bronchiolitis

IMPORTANCE

Pulse oximetry is a noninvasive technology that is integral to the supportive care of hospitalized infants with bronchiolitis. A multicenter, randomized trial comparing the effectiveness of intermittent vs continuous pulse oximetry found similar length of hospital stay and safety outcomes, and greater nursing satisfaction, with intermittent monitoring.

OBJECTIVES

To evaluate the cost-effectiveness of intermittent vs continuous pulse oximetry in hospitalized infants with stabilized bronchiolitis.

DESIGN, SETTING, AND PARTICIPANTS

An economic evaluation concurrent with a randomized trial in community and tertiary children's hospitals in Ontario, Canada, was conducted using a probabilistic analysis. Patients were enrolled from November 1, 2016, to May 31, 2019. Data included infants aged 4 weeks to 24 months hospitalized with bronchiolitis, with or without supplemental oxygen, after stabilization. The cost-effectiveness analysis adopted a societal and health care system perspective and a time horizon from hospitalization to 15 days post-discharge. Patient level direct health care costs and indirect costs were included. Health resource use, costs, and clinical outcomes were obtained from trial data. Publicly available pricing resources were used to supplement costs. Ranges for sensitivity analysis were based on 95% confidence intervals of the trial data. All costs were reported in 2021 Canadian dollars.

INTERVENTIONS

Intermittent (every 4 hours) vs continuous pulse oximetry using an oxygen saturation target of 90% or higher.

MAIN OUTCOMES AND MEASURES

Costs and incremental costs.

RESULTS

Trial data from 229 infants (median [IQR] age, 4.0 [2.2-8.5] months; 136 boys [59.4%], 93 girls [40.6%]) were included. Mean societal costs per patient were $6879 (95% CI, $3393 to $12 317) in the intermittent and $7428 (95% CI, $1743 to $25 011) in the continuous group with a mean incremental cost of -$548 (95% CI, -$18 486 to $8105). Mean health care system costs per patient were $4195 (95% CI, $1191 to $9461) in the intermittent and $4716 (95% CI, $335 to $22 093) in the continuous group (incremental cost, -$520; 95% CI, -$18 286 to $7358). The mean effect measure of length of stay was similar between the 2 groups: 37.4 hours (95% CI, 1.0 to 137.7 hours) in the intermittent group and 38.5 hours (95% CI, 0 to 237.1 hours) in the continuous group. One-way sensitivity analyses on all variables revealed that the findings were robust and the incremental costs were not sensitive to the uncertainty within the defined ranges.

CONCLUSIONS AND RELEVANCE

In this prospective economic evaluation study, we found that costs were similar for intermittent and continuous pulse oximetry considering societal and health care perspectives. Given that clinical outcomes between monitoring strategies are comparable and that other practice considerations favor intermittent monitoring, these findings provide additional information that support the use of intermittent monitoring in hospitalized infants with stabilized bronchiolitis.

78 Cost-effectiveness of intermittent vs. continuous pulse oximetry monitoring in infants hospitalized with stabilized bronchiolitis: A multi-centre clinical trial

Background

Pulse oximetry is a non-invasive technology that is integral to the supportive care of hospitalized infants with bronchiolitis. A multi-centre, randomized trial comparing the effectiveness of intermittent vs. continuous pulse oximetry found similar hospital length of stay and safety outcomes, and greater nursing satisfaction with intermittent monitoring.

Objectives

To evaluate the cost-effectiveness of intermittent vs. continuous pulse oximetry in hospitalized infants with stabilized bronchiolitis.

Design/Methods

Prospective economic evaluation concurrent with a randomized trial (October 2016 to May 2019) using a probabilistic analysis. Infants (n=229) 4 weeks to 24 months hospitalized with bronchiolitis, with or without supplemental oxygen, after stabilization were randomized at six Ontario hospitals (community and children's) to intermittent (every 4 hours) vs. continuous pulse oximetry using an oxygen saturation target of 90% or higher. The main outcome measure for the economic evaluation was cost and incremental costs. The clinical effect measure was length of hospital stay in hours. The cost-effective analysis adopted a societal and health care system perspective and a time horizon from hospitalization to 15 days post-discharge. Patient level direct health care costs and indirect costs were included. Costs, health resource use and clinical outcomes were obtained from trial data. Publicly available pricing resources were used to supplement costs. Ranges for sensitivity analysis were based on 95% confidence intervals of the trial data. All costs were reported in 2020 Canadian dollars. This study was funded by a grant from the Canadian Institutes of Health Research.

Results

Trial data from 229 infants across six hospitals was included. Mean societal costs per patient were lower in the intermittent monitoring group: $6528 (95% CI: $3201, $12058) in the intermittent and $6815 (95% CI: $1454, $26485) in the continuous group with a mean incremental cost of -$287 (95% CI -$20084, $7842). Mean health care system costs per patient were $3992 (95% CI -$1139, $9224) in the intermittent and $4604 (95% CI -$317, $24126) in the continuous group (incremental cost -$613 (95% CI -$20564, $7089). The mean effect measure, length of stay, was also similar between the two groups: 36.3 hours in the intermittent group and 40.2 hours in the continuous group. One-way sensitivity analyses on all variables revealed that the findings were robust and the incremental costs were not sensitive to the uncertainty within the defined ranges.

Conclusion

In a prospective economic evaluation conducted with a clinical trial, we found that intermittent monitoring was less expensive than continuous monitoring, considering societal and health care costs. These findings support recommendations to use intermittent pulse oximetry monitoring in hospitalized infants with stabilized bronchiolitis.

76 Understanding practice change around intermittent versus continuous pulse oximetry in infants hospitalized with bronchiolitis: a multi-centre qualitative study

Background

Bronchiolitis is the most common reason for hospitalization in infants and is cumulatively costly for the healthcare system. Trial evidence and national guidelines support the routine use of intermittent pulse oximetry in stabilized (no oxygen supplementation) infants with bronchiolitis. However, continuous pulse oximetry use is common.

Objectives

To understand the barriers and facilitators important to de-implementing continuous pulse oximetry and implementing intermittent pulse oximetry in stabilized infants hospitalized with bronchiolitis.

Design/Methods

From December 2018 to January 2020, participants were recruited from six Ontario hospitals (3 community and 3 paediatric hospitals) in a multi-centre qualitative study. Focus groups were conducted with staff paediatricians, paediatric residents, nurses, and respiratory therapists. Interviews were conducted with caregivers of infants recently hospitalized with bronchiolitis. Participants' beliefs, attitudes, and experiences related to pulse oximetry use in bronchiolitis management were explored. Recordings were transcribed and analyzed using thematic analysis via NVivo software to understand barriers and facilitators to practice change. These were then mapped to the domains and the constructs of the Consolidated Framework for Implementation Research (CFIR).

Results

67 individuals from six hospitals participated. Themes relevant to understanding barriers and facilitators to de-implementing continuous and implementing intermittent monitoring were identified. Healthcare professionals emphasized the importance of identifying and understanding who is responsible for bedside monitoring practice (physician vs. nurses). Clinical experience, knowledge of guidelines (international and local practice), importance relative to competing priorities, and the tensions amongst team members due to practice variation all influenced monitoring practice. Nurses held beliefs around the advantages of intermittent monitoring (e.g., reduced alarm fatigue, facilitation of timely discharges and reduced workload). Clinicians identified ways to clarify indications for ongoing continuous monitoring (e.g., based on clinical risk factors such as medical complexity, prematurity, and age), vs. indications to transition to intermittent monitoring (e.g., established oral feeding, sleeping without desaturations, and off supplemental oxygen). Caregivers did not express a clear preference for monitoring type, but described the stress of having a child admitted to hospital with an emphasis on the need for clear communication around the interpretation of monitors, management decisions, and care transitions.

Conclusion

In this multi-centre qualitative study of clinicians and caregivers, we identified barriers and facilitators that are important to de-implementing continuous monitoring and implementing intermittent monitoring. Understanding professional roles, clarity around local practice standards and supporting families' understanding of pulse oximetry monitoring practices are essential for practice change.

Factors Associated with Surgery and Imaging Characteristics in Severe Orbital Infections

OBJECTIVES

To evaluate risk factors associated with surgical intervention and subperiosteal/orbital abscess in hospitalized children with severe orbital infections.

STUDY DESIGN

We conducted a multicenter cohort study of children 2 months to 18 years hospitalized with periorbital or orbital cellulitis from 2009 to 2018 at 10 hospitals in Canada. Clinical details were extracted, and patients were categorized as undergoing surgical or medical-only management. Primary outcome was surgical intervention and the main secondary outcome was clinically important imaging. Logistic regression was used to identify predictors.

RESULTS

Of 1579 patients entered, median age was 5.4 years, 409 (25.9%) had an orbital/subperiosteal abscess, and 189 (12.0%) underwent surgery. In the adjusted analysis, the risk of surgical intervention was associated with older age (age 9 to <14: aOR 3.9, 95% CI 2.3-6.6; and age 14 to ≤18 years: aOR 7.0, 95% CI 3.4-14.1), elevated C-reactive protein >120 mg/L (aOR 2.8, 95% CI 1.3-5.9), elevated white blood cell count of 12-20 000/μL (aOR 1.7, 95% CI 1.1-2.6), proptosis (aOR 2.6, 95% CI 1.7-4.0), and subperiosteal/orbital abscess (aOR 5.3, 95% CI 3.6-7.9). There was no association with antibiotic use before hospital admission, sex, presence of a chronic disease, temperature greater than 38.0°C, and eye swollen shut. Complications were identified in 4.7% of patients, including vision loss (0.6%), intracranial extension (1.6%), and meningitis (0.8%).

CONCLUSIONS

In children hospitalized with severe orbital infections, older age, elevated C-reactive protein, elevated white blood cell count, proptosis, and subperiosteal/orbital abscess were predictors of surgical intervention.

68 COVID-19 in children: A case series

Primary Subject area

Community Paediatrics

Background

The COVID-19 pandemic has had an overwhelming impact worldwide. Studies on pediatric populations remain limited, as the burden of disease in pediatric patients appears to be low at this time.

Objectives

To further describe clinical characteristics and severity of disease of confirmed pediatric COVID-19 patients seen and evaluated in a community-based hospital.

Design/Methods

A retrospective chart review of positive COVID-19 patients ≤ 18 years seen in COVID clinic or in the Emergency Department (ED) between April and December 2020 was performed. The results of nasopharyngeal swabs were confirmed using real-time reverse-transcription-polymerase chain reaction (RT-PCR) assays. A descriptive analysis of illness severity, performed via Excel 2019, was based on clinical presentation, laboratory data, and chest x-ray imaging. The categories of illness severity were: asymptomatic, mild, moderate, severe or critical.

Results

A total of 53 positive COVID-19 patients were enrolled in this study, which consisted of 24 (45.3%) males and 29 (54.7%) females. The median age was 7.5 years (2.4-12.8). The majority of patients presented with mild symptoms (64.2%), with fever and cough being the main symptoms in 20 (37.7%) and 16 (30.2%) cases, respectively. Other symptoms included sore throat (15.1%), diarrhea (13.2%), headache (9.4%), runny nose (7.5%) and abdominal pain (7.5%). The remaining patients (35.8%) were asymptomatic. Of note, one patient (1.9%) presented with COVID toes requiring referral to a tertiary centre, and one (1.9%) was diagnosed with acute appendicitis. A history of contact with a confirmed COVID-19-positive family member was present in 43 (81.1%) patients, and 6 (11.3%) reported a history of recent travel. Laboratory tests were performed in 7 (13.2%) patients, and chest x-rays were performed in 9 (17%). There were no abnormalities detected in either, other than an elevated CRP seen in one patient with appendicitis. Two (3.8%) patients were admitted, including the patient with appendicitis who developed a perforation and was later transferred to a tertiary care centre to undergo an appendectomy. The majority of patients (96.2%) were discharged home.

Conclusion

All patients either presented with mild symptoms or were asymptomatic. Fever and cough were the most common presenting symptoms. Due to this, the vast majority of patients were discharged home. The infection in the majority of patients could be traced to a positive family contact. Our findings are consistent with what has been observed previously in our centre as well as worldwide.

Intermittent vs Continuous Pulse Oximetry in Hospitalized Infants With Stabilized Bronchiolitis: A Randomized Clinical Trial

IMPORTANCE

There is low level of evidence and substantial practice variation regarding the use of intermittent or continuous monitoring in infants hospitalized with bronchiolitis.

OBJECTIVE

To compare the effect of intermittent vs continuous pulse oximetry on clinical outcomes.

DESIGN, SETTING, AND PARTICIPANTS

This multicenter, pragmatic randomized clinical trial included infants 4 weeks to 24 months of age who were hospitalized with bronchiolitis from November 1, 2016, to May 31, 2019, with or without supplemental oxygen after stabilization at community and children's hospitals in Ontario, Canada.

INTERVENTIONS

Intermittent (every 4 hours, n = 114) or continuous (n = 115) pulse oximetry, using an oxygen saturation target of 90% or higher.

MAIN OUTCOMES AND MEASURES

The primary outcome was length of hospital stay from randomization to discharge. Secondary outcomes included length of stay from inpatient unit admission to discharge and outcomes measured from randomization: medical interventions, safety (intensive care unit transfer and revisits), parent anxiety and workdays missed, and nursing satisfaction.

RESULTS

Among 229 infants enrolled (median [IQR] age, 4.0 [2.2-8.5] months; 136 [59.4%] male; 101 [44.1%] from community hospital sites), the median length of hospital stay from randomization to discharge was 27.6 hours (interquartile range [IQR], 18.8-49.6 hours) in the intermittent group and 25.4 hours (IQR, 18.3-47.6 hours) in the continuous group (difference of medians, 2.2 hours; 95% CI, -1.9 to 6.3 hours; P = .17). No significant differences were observed between the intermittent and continuous groups in the median length of stay from inpatient unit admission to discharge: 49.1 (IQR, 37.2-87.0) hours vs 46.0 (IQR, 32.5-73.8) hours (P = .13) or in frequencies or durations of hospital interventions, such as oxygen supplementation initiation: 4 of 114 (3.5%) vs. 9 of 115 (7.8%) (P = .16) and median duration of oxygen supplementation: 20.6 (IQR, 7.6-46.1) hours vs. 21.4 (11.6-52.9) hours (P = .66). Similarly, there were no significant differences in frequencies of intensive care unit transfer: 1 of 114 (0.9%) vs 2 of 115 (2.7%) (P = .76); readmission to hospital: 3 of 114 (2.6%) in the intermittent group vs 4 of 115 (3.5%) in the continuous group (P > .99); parent anxiety: mean (SD) parent anxiety score, 2.9 (0.9) in the intermittent group vs 2.8 (0.9) in the continuous group (P = .40); or parent workdays missed: median workdays missed, 1.5 (IQR, 0.5-3.0) vs 1.5 (IQR, 0.5-2.5) (P = .36). Mean (SD) nursing satisfaction with monitoring was significantly greater in the intermittent group: 8.6 (1.7) vs 7.1 (2.8) of 10 workdays; the mean difference was 1.5 (95% CI, 0.9-2.2; P < .001).

CONCLUSIONS AND RELEVANCE

In this randomized clinical trial, among infants hospitalized with stabilized bronchiolitis with and without hypoxia and managed using an oxygen saturation target of 90% or higher, clinical outcomes, including length of hospital stay and safety, were similar with intermittent vs continuous pulse oximetry. Nursing satisfaction was greater with intermittent monitoring. Given that other important clinical practice considerations favor less intense monitoring, these findings support the standard use of intermittent pulse oximetry in stable infants hospitalized with bronchiolitis.

TRIAL REGISTRATION

ClinicalTrials.gov Identifier: NCT02947204.

Care and outcomes of Canadian children hospitalised with periorbital and orbital cellulitis: protocol for a multicentre, retrospective cohort study

INTRODUCTION

Skin and soft tissue infections of the eye can be classified based on anatomic location as either anterior to the orbital septum (ie, periorbital cellulitis) or posterior to the orbital septum (ie, orbital cellulitis). These two conditions are often considered together in hospitalised children as clinical differentiation is difficult, especially in young children. Prior studies have identified variation in management of hospitalised children with orbital cellulitis; however, they have been limited either as single centre studies or by the use of administrative data which lacks clinical details important for interpreting variation in care. We aim to describe the care and outcomes of Canadian children hospitalised with periorbital and orbital cellulitis.

METHOD AND ANALYSIS

This is a multisite retrospective cohort study including previously healthy children aged 2 months to 18 years admitted to hospital with periorbital or orbital cellulitis from 2009 to 2018. Clinical data from medical records from multiple Canadian hospitals will be collected, including community and academic centres. Demographic characteristics and study outcomes will be summarised using descriptive statistics, including diagnostic testing, antibiotic therapy, adjunctive therapy, surgical intervention and clinical outcomes. Variation will be described and evaluated using χ² test or Kruskal-Wallis test. Generalised linear mixed models will be used to identify predictors of surgical intervention and longer length of stay.

ETHICS AND DISSEMINATION

Approval of the study by the Research Ethics Board at each participating site has been obtained prior to data extraction. Study results will be disseminated by presentations at national and international meetings and by publications in high impact open access journals. By identifying important differences in management and outcomes by each hospital, the results will identify areas where care can be improved, practice standardised, unnecessary diagnostic imaging reduced, pharmacotherapy rationalised and where trials are needed.

Intermittent versus continuous oxygen saturation monitoring for infants hospitalised with bronchiolitis: study protocol for a pragmatic randomised controlled trial

INTRODUCTION

Bronchiolitis is the most common reason for hospitalisation in infants in developed countries. The main focus of hospital care is on supportive care, such as monitoring for hypoxia and supplemental oxygen administration, as active therapies lack effectiveness. Pulse oximetry is used to monitor hypoxia in hospitalised infants and is used either intermittently or continuously. Observational studies have suggested that continuous pulse oximetry use leads to a longer length of hospital stay in stable infants. The use of continuous pulse oximetry may lead to unnecessary clinical intervention due to readings that are of little clinical significance, false-positive readings and less reliance on the clinical status. There is a lack of high-quality evidence to guide which pulse oximetry monitoring strategy, intermittent or continuous, is superior in infants hospitalised with bronchiolitis with respect to patient and policy-relevant outcomes.

METHODS AND ANALYSIS

This is a multicentre, pragmatic randomised controlled trial comparing two strategies for pulse oximetry monitoring in infants hospitalised for bronchiolitis. Infants aged 1 month to 2 years presenting to Canadian tertiary and community hospitals will be randomised after stabilisation to receive either intermittent or continuous oxygen saturation monitoring on the inpatient unit until discharge. The primary outcome is length of hospital stay. Secondary outcomes include additional measures of effectiveness, acceptability, safety and cost. We will need to enrol 210 infants in order to detect a 12-hour difference in length of stay with a type 1 error rate of 5% and a power of 90%.

ETHICS AND DISSEMINATION

Research ethics approval has been obtained for this trial. This trial will provide data to guide hospitals and clinicians on the optimal pulse oximetry monitoring strategy in infants hospitalised with bronchiolitis. We will disseminate the findings of this study through peer-reviewed publication, professional societies and meetings.

TRIAL REGISTRATION NUMBER

NCT02947204.

Oral dexamethasone for bronchiolitis: a randomized trial

OBJECTIVE

Determine whether dexamethasone treatment added to salbutamol reduces time to readiness for discharge in patients with bronchiolitis and possible asthma.

METHODS

We compared efficacy and safety of dexamethasone, 1 mg/kg, then 0.6 mg/kg for 4 more days, with placebo for acute bronchiolitis in patients with asthma risk, as determined by eczema or a family history of asthma in a first-degree relative. All patients received inhaled salbutamol. Time to readiness for discharge was the primary efficacy outcome.

RESULTS

Two hundred previously healthy infants diagnosed with bronchiolitis, median age 3.5 months, were enrolled. Five placebo recipients needed admission to intensive care unit during infirmary treatment (P = .02). Among 100 dexamethasone recipients, geometric mean time to readiness for discharge was 18.6 hours (95% confidence interval [CI], 14.9 to 23.1 hours); among 90 control patients, 27.1 hours (95% CI, 21.8 to 33.8 hours). The ratio, 0.69 (95% CI, 0.51 to 0.93), revealed a mean 31% shortening of duration to readiness for discharge favoring dexamethasone (P = .015). Twenty-two dexamethasone and 19 control patients were readmitted to the short stay infirmary in the week after discharge (P = .9). No hospitalizations or side effects were reported during 7 days of surveillance.

CONCLUSIONS

Dexamethasone with salbutamol shortened time to readiness for infirmary discharge during bronchiolitis episodes in patients with eczema or a family history of asthma in a first-degree relative. Infirmary and clinic visits in the subsequent week occurred similarly for the 2 groups.

Measles Outbreak in Qatar 2007

To analyze the epidemiological and clinical characteristic of a measles outbreak in Qatar in 2007, the records of 21 2 confirmed cases of measles were analyzed retrospectively, confirmation being based on clinical suspicion of the disease with a positive measles IgM (170 cases) and /or exposure to a laboratory confirmed measles case during the infectious period (42 cases; epidemiologic link). Eighty five percent of the cases occurred between April and July. Seventeen percent were in infants <  1 year of age, 47% in children between 1-5 years of age, 24% in school age children < 10 year of age and 1 2% in children >10 years old. Vaccinations were up to date in 60% of cases, second dose missed in 30% and no vaccination in 10% because of travel outside the country, concurrent illness, or lack of transportation. Thirty one percent of the cases required admission, with a mean hospital stay of four days. Cases were reported predominantly in Pakistani and Qatari patients, living mainly in three areas within the capital, Abu Hammour, Al Rayyan, and Al Mamuora.

Conclusion: Status of vaccination in Qatar needs careful analysis and the vaccination schedule should be reviewed. Early administration of vaccine, increasing community awareness, a well-coordinated school-based immunization program and immunization campaigns are required to prevent future outbreaks.

Nebulized 5% or 3% hypertonic or 0.9% saline for treating acute bronchiolitis in infants

OBJECTIVE

To compare the efficacy and safety of 5%, 3%, and 0.9% saline solution for treating acute bronchiolitis in the prehospital setting.

STUDY DESIGN

This was a double-blind trial including consecutive infants aged <18 months treated in an urban urgent care setting. A total of 165 patients were randomized to receive nebulized 5%, 3%, or 0.9% (normal) saline with epinephrine every 4 hours. The primary efficacy outcome was bronchiolitis severity score improvement at 48 hours (chi2 analysis). Scores and oxygen saturation immediately before and after each treatment were recorded to assess safety.

RESULTS

A total of 187 previously healthy infants (median age, 3.1 months) diagnosed with bronchiolitis were enrolled. Positivity for respiratory syncytial virus was similar in the 3 treatment groups (mean, 56%). At 48 hours, the mean severity score for the 5% saline group was 3.69+/-1.09, and that for the 0.9% saline group was 4.12+/-1.11 (P=.04; difference, 0.43, 95% confidence interval for the difference, 0.02-0.88). The mean severity score for the 3% saline group was intermediate at 4.00+/-1.22. Revisit rates after discharge were similar in the 3 treatment groups. No adverse reactions or other safety concerns were identified.

CONCLUSIONS

Nebulization with 5% hypertonic saline is safe, can be widely generalizable, and may be superior to current treatment for early outpatient treatment of bronchiolitis.