Cross-sectional study of electrocardiographic pattern in healthy children resident at high altitude

Abstract Background Recognition of temporomandibular joint (TMJ) involvement in children with juvenile idiopathic arthritis (JIA) has gained increasing attention in the past decade. The clinical assessment of mandibular range of motion characteristics is part of the recommended variables to detect TMJ involvement in children with JIA. The aim of this study was to explore explanatory variables for mandibular range of motion outcomes in children with JIA, with and without clinically established TMJ involvement, and in healthy children. Methods This cross-sectional study included children with JIA and healthy children of age 6–18 years. Mandibular range of motion variables included active and passive maximum interincisal opening (AMIO and PMIO), protrusion, laterotrusion, dental midline shift in AMIO and in protrusion. Additionally, the TMJ screening protocol and palpation pain were assessed. Adjusted linear regression analyses of AMIO, PMIO, protrusion, and laterotrusion were performed to evaluate the explanatory factors. Two adjusted models were constructed: model 1 to compare children with JIA and healthy children, and model 2 to compare children with JIA with and without TMJ involvement. Results A total of 298 children with JIA and 169 healthy children were included. Length was an explanatory variable for the mandibular range of motion excursions. Each centimeter increase in length increased AMIO (0.14 mm), PMIO (0.14 mm), and protrusion (0.02 mm). Male gender increased AMIO by 1.35 mm. Having JIA negatively influenced AMIO (3.57 mm), PMIO (3.71 mm), and protrusion (1.03 mm) compared with healthy children, while the discrepancy between left and right laterotrusion raised 0.68 mm. Children with JIA and TMJ involvement had a 8.27 mm lower AMIO, 7.68 mm lower PMIO and 0.96 mm higher discrepancy in left and right laterotrusion compared to healthy children. Conclusion All mandibular range of motion items were restricted in children with JIA compared with healthy children. In children with JIA and TMJ involvement, AMIO, PMIO and the discrepancy between left and right laterotrusion were impaired more severely. The limitation in protrusion and laterotrusion was hardly clinically relevant. Overall, AMIO is the mandibular range of motion variable with the highest restriction (in millimeters) in children with JIA and clinically established TMJ involvement compared to healthy children.

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Reference values of electrographic and cardiac ultrasound parameters in Russian healthy children and adolescents

Scientific Reports ◽

10.1038/s41598-021-82314-0 ◽

2021 ◽

Vol 11 (1) ◽

Author(s):

Geraldine Landon ◽

Isabelle Denjoy ◽

Enora Clero ◽

Aleksandr Silenok ◽

Irina Kurnosova ◽

...

Keyword(s):

Age Groups ◽

Cross Sectional Study ◽

Healthy Children ◽

Cardiac Ultrasound ◽

Relevant Feature ◽

Sectional Study ◽

Cross Sectional ◽

Echocardiographic Parameters ◽

Electrocardiographic Parameters ◽

Ultrasound Parameters

AbstractBetween 2009 and 2013, a large cross-sectional study on the health consequences of the Chernobyl nuclear accident was performed in the contaminated and uncontaminated territories of the Bryansk Oblast (Russian Federation). The objective of this work was to confirm or refute a possible association between childhood cardiac arrhythmia and a chronic exposure to caesium-137. As part of this study, a large number of electrocardiographic and cardiac ultrasound parameters were collected from 18,152 children aged 2–18 years including 12,512 healthy ones not contaminated with caesium-137. It seemed therefore relevant for us to share in a second publication these medical data based on healthy and uncontaminated children with the scientific community because of the large quantities and the limited availability of such kind of data. In the present study, relating to electrocardiographic parameters, the measurements performed fully reflect the expected evolution of the paediatric electrocardiogram between 5 and 18 years of age. Thus, the median values were generally quite close to those available in the literature. In contrast, differences in the 2nd and 98th percentiles were notable and could be explained in particular by the type of equipment used, the number of subjects included in the study and racial disparities. As for echocardiographic parameters, the evolution of the measured values in age groups is consistent with what was expected considering factors such as growth. In comparison with other scientific studies that have investigated these echocardiographic parameters, some differences by age groups have been identified. The ethnic factor truly appears to be a relevant feature to consider. In view of the results, it appeared essential to the authors to approach the methodological conditions of the scientific studies already published on the topic to be truly comparable and thus to provide a reliable answer on a topic for which real expectations in terms of medical care are required.

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THE IMPACT OF ASTHMAAND ITS MEDICATIONS ON DENTAL CARIES STATUS AND STREPTOCOCCUS MUTANS COUNT IN CHILDREN: A CROSS-SECTIONAL STUDY

10.36106/ijsr/7515919 ◽

2020 ◽

pp. 20-23

Author(s):

Sneha Upadhyay ◽

Jyoti Bhavthankar ◽

Mandakini Mandale ◽

Nivedita Kaorey

Keyword(s):

Dental Caries ◽

Streptococcus Mutans ◽

Cross Sectional Study ◽

Control Group ◽

Healthy Children ◽

Sectional Study ◽

Cross Sectional ◽

Asthmatic Children ◽

Significant Difference ◽

The Impact

Background: Asthma and its medications have been linked to oral diseases in asthmatic children. Aim: Assessment of the dental caries status, salivary Streptococcus mutans count and S. mutans colony score in children receiving inhaled anti asthmatic medications and their comparison in healthy children Material and Method: A cross-sectional study was performed on 40 asthmatic children and 40 healthy children in the age group of 6-14 years. DMFT/deft indices were calculated and saliva samples were collected. Diluted saliva was inoculated on MSB agar plates. S. mutans count and colony score were analysed after 24-48 hours of inoculation. Results: Statistically significant difference was observed in the mean DMFT/deft index, salivary S. mutans load and S. mutans colony score in children of the asthmatic group and control group. Conclusion: Prevalence of dental caries and cariogenic bacteria is higher in asthmatic children.

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SARS-CoV-2 seroprevalence in a high-altitude setting in Peru: adult population-based cross-sectional study

PeerJ ◽

10.7717/peerj.12149 ◽

2021 ◽

Vol 9 ◽

pp. e12149

Author(s):

Charles Huamaní ◽

Lucio Velásquez ◽

Sonia Montes ◽

Ana Mayanga-Herrera ◽

Antonio Bernabé-Ortiz

Keyword(s):

High Altitude ◽

Adult Population ◽

Population Based ◽

Cross Sectional Study ◽

Sectional Study ◽

Ecological Studies ◽

Cross Sectional ◽

Factors Associated ◽

San Sebastian ◽

Population Based Survey

Background There are several ecological studies, but few studies of the prevalence of SARS-COV-2 at high altitude. We aimed to estimate the population-based seroprevalence of SARS-COV-2 in three settings of Cusco at the end of the first wave among adults. Methods A population-based survey was conducted in September 2020, in three settings in the region of Cusco: (1) Cusco city at 3,300 meters above the sea level (m.a.s.l.), (2) the periphery of Cusco (Santiago, San Jerónimo, San Sebastián, and Wanchaq) at 3,300 m.a.s.l., and (3) Quillabamba city, located at 1,050 m.a.s.l. People aged ≥ 18 years within a family unit were included. The diagnosis of SARS-CoV-2 infection was based on identifying anti- SARS-CoV-2 total antibodies (IgM and IgG) in serum using the Elecsys Anti-SARS-CoV-2 chemiluminescence test. Results We enrolled 1924 participants from 712 families. Of the total, 637 participants were anti-SARS-CoV-2 seropositive. Seroprevalence was 38.8% (95% CI [33.4%–44.9%]) in Cusco city, 34.9% (95% CI [30.4%–40.1%]) in the periphery of Cusco, and 20.3% (95% CI [16.2%–25.6%]) in Quillabamba. In 141 families (19.8%; 95% CI [17.0%–22.8%]) the whole members were positive to the test. Living with more than three persons in the same house, a positive COVID-19 case at home, and a member who died in the last five months were factors associated with SARS-COV-2 seropositivity. Dysgeusia/dysosmia was the symptom most associated with seropositivity (aPR = 2.74, 95% CI [2.41–3.12]); whereas always wearing a face shield (aPR = 0. 73; 95% CI [0.60–0.89]) or a facial mask (aPR = 0.76, 95% CI [0.63–0. 92) reduced that probability. Conclusions A great proportion of Cusco’s city inhabitants presented anti-SARS-CoV-2 antibodies at the end of the first wave, with significant differences between settings. Wearing masks and face shields were associated with lower rate of seropositivity; however, efforts must be made to sustain them over time since there is still a high proportion of susceptible people.

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Self‐rated health in mothers of children hospitalised for severe illnesses and mothers of healthy children: cross‐sectional study

Scandinavian Journal of Caring Sciences ◽

10.1111/scs.12774 ◽

2019 ◽

Vol 34 (3) ◽

pp. 698-709

Author(s):

Anna Aftyka ◽

Wojciech Rosa ◽

Jolanta Taczała

Keyword(s):

Cross Sectional Study ◽

Healthy Children ◽

Sectional Study ◽

Cross Sectional ◽

Self Rated Health

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Review for "Bronchodilator responsiveness in healthy children: insights from a cross‐sectional study"

10.1111/pai.13326/v2/review1 ◽

2020 ◽

Keyword(s):

Cross Sectional Study ◽

Healthy Children ◽

Sectional Study ◽

Cross Sectional ◽

Bronchodilator Responsiveness

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Physical Activity Practice and Optimal Development of Postural Control in School Children: Are They Related?

Journal of Clinical Medicine ◽

10.3390/jcm9092919 ◽

2020 ◽

Vol 9 (9) ◽

pp. 2919 ◽

Cited By ~ 1

Author(s):

Jose L. García-Soidán ◽

Jesús García-Liñeira ◽

Raquel Leirós-Rodríguez ◽

Anxela Soto-Rodríguez

Keyword(s):

Physical Activity ◽

Postural Control ◽

School Children ◽

Cross Sectional Study ◽

The Body ◽

Healthy Children ◽

Sectional Study ◽

Cross Sectional ◽

Convenience Sample ◽

Control State

Background: This study aims to analyze the effect of physical activity practice on the postural control state of school children. If such an effect was detected, the second aim of the study was to identify which specific capacities of postural control benefited the most from physical activity. Methods: A cross-sectional study was performed using a convenience sample of 118 healthy children (54 girls) with a mean age of 10.3 ± 1.2 years. Their weight and height were measured. The accelerometric assessment of balance included four different tests in static balance and walking. Results: Physical activity habit prevalence was 38.9% in girls and 60.9% in boys, and its frequency was 2.3 days per week in girls and 2.8 days in boys. The active children obtained lower accelerations, but the active and sedentary girls showed lower accelerometric values than the active boys. The logistic regression analysis demonstrated the influence of sex on the accelerations of the body (p < 0.001), regardless of the habit of physical activity. Conclusions: Active children have better postural control than sedentary children, although sedentary girls have better balance than active boys. Therefore, physical activity practice seems to favor a more efficient development of postural control, but it cannot level or reverse the effect of the neurophysiological factors that are conditioned by sex.

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