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Objectives Screening for hypertension in children is recommended by pediatric consensus guidelines. However, current practice is unknown. We evaluated rates of blood pressure assessment and hypertension recognition in primary care. Methods This retrospective cohort study evaluated electronic medical record data from the Canadian Primary Care Sentinel Surveillance Network between 2011 and 2017. Children aged 3 to <18 years with at least one clinical encounter were included. Screening, follow-up, and hypertension recognition rates were evaluated. Descriptive statistics and multivariate logistical regression were used to determine patient and provider characteristics associated with increased screening and recognition of pediatric hypertension. Results Among 378,002 children, blood pressure was documented in 33.3% of all encounters, increasing from 26.7% in 2011 to 36.2% in 2017; P=0.007. Blood pressure was documented in 76.0% of well child visits. Follow-up visits occurred within 6 months for 26.4% of children with elevated blood pressure, 57.1% of children with hypertension, and within 1 month for 7.2% of children with hypertension. Patient factors associated with increased blood pressure screening include being overweight (OR 2.15, CI 2.09 to 2.22), having diabetes (OR 1.69, CI 1.37 to 2.08), chronic kidney disease (OR 7.51, CI 6.54 to 8.62), increased social deprivation (OR 1.10, CI 1.09 to 1.11), and urban residence (OR 1.27, CI 1.15 to 1.4). Overall prevalence of hypertension was 1.9% (n=715) and of those, 5.6% (n=40) had recognized hypertension. Factors associated with increased recognition include male sex, overweight, and hyperlipidemia. Conclusions Rates of hypertension screening and recognition are low in primary care settings in Canada, suggesting pediatric hypertension should be a priority for implementation and dissemination of interventions. [ABSTRACT FROM AUTHOR]

Background We assess the impact of the 2017 American Academy of Pediatrics (AAP) guidelines on the prevalence of high blood pressure (BP) in generally healthy Canadian children and identify risk factors associated with high BP (elevated, stage 1, or stage 2 at a single visit). Methods A cohort of 7,387 children aged 6 to 18 years in the Canadian Health Measures Survey (CHMS, 2007 to 2015) had BPTru oscillometry with centiles and stages assigned using both the 2017 AAP guidelines and the 2004 Fourth Report from the National Institute of Health/National Heart Lung and Blood Institute (NIH/NHLBI). Results Although both shifted upwards significantly, mean population systolic BP and diastolic BP percentiles are now 24.2 (95% confidence interval: 23.3 to 25.2) and 46.4 (45.3 to 47.6). As a result, the population prevalence of high BP increased from 4.5% (3.9 to 5.2, NIH/NHLBI) to 5.8% (5.0 to 6.6, AAP), less than in US children measured by auscultation (14.2%, 13.4 to 15.0). Children with high BP were more likely to be overweight/obese, to be exposed to prenatal/household smoking, and to have hypertriglyceridemia, without differences in dietary salt, infant breastfeeding, neonatal hospitalizations, or exercise frequency. Conclusion The 2017 AAP guidelines increase the prevalence of high BP in Canadian children; Canadian prevalence appears lower than in the USA. This may reflect differences in measurement methods or in the prevalence of childhood overweight/obesity between countries, that is, 31.1% (28.9 to 33.3) versus 40.6% (39.5 to 42.0), respectively. Those with high BP were more likely to have other cardiac risk factors, including overweight/obesity, prenatal/household smoking exposure, and hypertriglyceridemia. [ABSTRACT FROM AUTHOR]

Background and Objective Opioid-induced constipation (OIC) is a common and important problem in paediatric palliative care, critical care, and postoperative settings. Treatment for OIC is often ineffective and limited by enteral intake. A new class of drugs called peripherally acting mu-opioid receptor antagonists (PAMORAs) have been shown to be effective treatments of OIC in adults, including the agents methylnaltrexone and naloxegol. Data in children are limited to several small case reports, mostly in the palliative care setting. The goal of this study was to evaluate the effectiveness and safety of methylnaltrexone and naloxegol in hospitalized children, including those with critical illness. Methods We conducted a retrospective study of all children admitted to the Stollery Children's Hospital in Edmonton (Canada) who received either methylnaltrexone or naloxegol for OIC. The primary outcome was median time to first bowel movement (BM) after the first dose of PAMORA. Results A total of 27 patients were included in the study. Kaplan–Meier survival analysis showed the median time to the first BM after the first dose of PAMORA was 15.5 hours. Seventeen (63%) patients had laxation within 24 hours of first dose. No significant adverse events were observed. Conclusion This study is the largest to date to evaluate efficacy and safety of PAMORAs in children. Future studies should be prospective and include larger numbers of patients with critical illness and postoperative OIC as indications for treatment. [ABSTRACT FROM AUTHOR]

Background Given the current opioid crisis, caregivers have mounting fears regarding the use of opioid medication in their children. We aimed to determine caregivers' a) willingness to accept, b) reasons for refusing, and c) past experiences with opioids. Methods A novel electronic survey of caregivers of children aged 4 to 16 years who had an acute musculoskeletal injury and presented to two Canadian paediatric emergency departments (ED) (March to November 2017). Primary outcome was caregiver willingness to accept opioids for moderate pain for their children. Results Five hundred and seventeen caregivers participated; mean age was 40.9 (SD 7.1) years with 70.0% (362/517) mothers. Children included 62.2% (321/516) males with a mean age of 10.0 (SD 3.6) years. 49.6% of caregivers (254/512) reported willingness to accept opioids for ongoing moderate pain in the ED, while 37.1% (190/512) were 'unsure'; 33.2% (170/512) of caregivers would accept opioids for at-home use, but 45.5% (233/512) were 'unsure'. Caregivers' primary concerns were side effects, overdose, addiction, and masking of diagnosis. Caregiver fear of addiction (odds ratio [OR] 1.12, 95% confidence interval [CI] 1.01 to 1.25) and side effects (OR 1.25, 95% CI 1.11 to 1.42) affected willingness to accept opioids in the emergency department ; fears of addiction (OR 1.19, 95% CI 1.07 to 1.32), and overdose (OR 1.15, 95% CI 1.04 to 1.27) affected willingness to accept opioids for at-home use. Conclusions Only half of the caregivers would accept opioids for moderate pain, despite ongoing pain following nonopioid analgesics. Caregivers' fears of addiction, side effects, overdose, and masking diagnosis may have influenced their responses. These findings are a first step in understanding caregiver analgesic decision making. [ABSTRACT FROM AUTHOR]

Background The validated Pediatric Emergency Care Applied Network (PECARN) rule helps determine the relevance of a head computerized tomography (CT) for children with mild traumatic brain injury (mTBI). We sought to estimate the potential overuse of head CT within two Canadian emergency departments (EDs). Methods We conducted a retrospective chart review of children seen in 2016 in a paediatric Level I (site 1) and a general Level II (site 2) trauma centre. We reviewed charts to determine the appropriateness of head CT use according to the PECARN rule in a random subset of children presenting with head trauma. Simple descriptive statistics were applied. Results One thousand five hundred and forty-six eligible patients younger than 17 years consulted during the study period. Of the 203 randomly selected cases per setting, 16 (7.9%) and 24 (12%), respectively from sites 1 and 2 had a head CT performed. Based on the PECARN rule, we estimated the overuse for the younger group (<2 years) to be below 3% for both hospitals without significant difference between them. For the older group (≥2 years), the overuse rate was higher at site 2 (9.3%, 95% confidence interval [CI]: 4.8 to 17% versus 1.2%, 95% CI: 0.2 to 6.5%, P=0.03). Conclusion Both EDs demonstrated overuse rates below 10% although it was higher for the older group at site 2. Such low rates can potentially be explained by the university affiliation of both hospitals and by two Canadian organizations working to raise awareness among physicians about the overuse of diagnostic tools and dangers inherent to radiation. [ABSTRACT FROM AUTHOR]

Introduction: There is evidence that 25-hydroxyvitamin D levels are lower in overweight and obese youth. This study examined the relationship between weight status and 25-hydroxyvitamin D, while controlling for confounders, in Canadian youth. Methods: Plasma 25-hydroxyvitamin D from subjects aged 6 to 17 years from the Canadian Health Measures Survey cycles 1 (2007 to 2009) and 2 (2009 to 2011) was used. Sex-specific multiple linear regression and logistic regressions examined the relationship of overweight and obesity (body mass index = 85th percentile) with 25-hydroxyvitamin D levels and the odds of 25-hydroxyvitamin D <40 nmol/L and <50 nmol/L. Results: The prevalence of risk of vitamin D deficiency (25-hydroxyvitamin D < 30 nmol/L) was 6% (95% confidence interval [CI] 3.26% to 10.12%). Vitamin D inadequacy, estimated by levels <40 nmol/L, was 15% (95% CI 10.34% to 20.39%; 19% [95% CI 13.1 to 25.6] for teenagers). Seventy per cent (95% CI 63.59 to 75.17) had levels >50 nmol/L, consistent with achieving the Recommended Dietary Allowance. In adjusted analyses, overweight/obesity (1/3 of subjects) was independently associated with lower 25-hydroxyvitamin D for both sexes after adjustment for age, race, income, season, vitamin D supplementation and daily milk consumption. For 25-hydroxyvitamin D <40 nmol/L, the overweight/obese odds ratio for males was 2.63 (95% CI 1.34 to 5.18). For 25-hydroxyvitamin D <50 nmol/L, overweight/obese odds ratios were 2.19 (95% CI 1.46 to 3.28) for males and 1.39 (95% CI 1.05 to 1.84) for females. Conclusions: This study confirms the inverse association between adiposity and serum concentrations of 25-hydroxyvitamin D in Canadian youth and the independent association of overweight/obesity to 25-hydroxyvitamin D level and vitamin D status after adjustment for other factors. [ABSTRACT FROM AUTHOR]

Objectives: To examine sleep patterns in a large cohort of rural children and explore the association between sleep patterns and injury occurrence. Methods: Cross-sectional analyses of the baseline survey from a prospective cohort study (2012 to 2017) was conducted with 46 rural schools in Saskatchewan, Canada who distributed surveys to parents of 2275 rural dwelling farm and nonfarm children aged 0 to 17 years. Parents reported child sleep characteristics and farm or nonfarm injury in the previous calendar year. Multivariable log-binomial regression examined associations between sleep characteristics and injury risk. Results: There was a significant trend of decreasing sleep duration with increasing age (P-trend < 0.001). Short sleep duration on weekdays (RR: 2.14; 95% CI: 1.25 to 3.66) and sleep debt (RR: 1.89; 95% CI: 1.21 to 2.95) increased injury risk in school-age children (7 to 12 years) but not in teens. A nearly fivefold increase in injury risk was identified among school-age children reporting all sleep problems (RR: 4.99; 95% CI: 1.99 to 12.50). Snoring in teens (13 to 17 years), often a symptom of obstructive sleep apnea, was associated with increased injury risk (RR: 1.98; 95% CI: 1.17 to 3.33). There were no statistically significant associations identified between sleep characteristics and injury risk in preschool children. Conclusion: Injuries to rural children are an important public health concern. This study highlights the impact of sleep problems on risk for injury among rural children. These findings are discussed in light of the recent American Academy of Pediatrics Technical Report on Insufficient Sleep in Adolescents and Young Adults. [ABSTRACT FROM AUTHOR]