Tag: paediatrics

Young Athletes’ Recovery Helped by New Concussion Guidelines

A study has found that the adoption of new concussion guidelines, which emphasises a more active form of rest, reduced the duration of symptoms among athletes aged 11 to 18.

Concussions are the most common form of traumatic brain injury, often occurring either as a direct result of a blow to the head, or from forces experienced by the body that impart an acceleration to the head. Symptoms include mood changes, cognitive changes, sensory phenomena such as headaches or dizziness, and changes in sleep pattern.

The researchers compared medical records from 2016-18, which used the newer guidelines, to a set from 2011-13, which used the older guidelines.

Lead researcher John Neidecker, DO, and Sports Concussion Specialist, explained: “The most significant change in care involved a shift from strict rest or cocoon therapy to a return to low-intensity physical or cognitive activity after 24 to 48 hours. Our results show active rest dramatically improved recovery times among young athletes with first-time concussions.”

Active rest involves light activity that steadily increases under supervision, with minimal head movement.

“If diagnosis of a pre-existing condition has never been given, patients cannot be expected to report one during our concussion assessment,” said Dr. Neidecker. “This is especially true in the adolescent age group, as some may have a condition that they are not aware of yet. This makes screening for preexisting conditions more complex, yet even more essential for this age group.”

For example, intolerance to 3D movies could indicate an unrelated pre-existing condition. Information from parents about preinjury personality and behaviour could uncover anxiety.

“This more individualised, osteopathic approach in screening the athletes’ past medical history helped us identify health issues that may have been overlooked in the past,” said Dr Neidecker. This allows treatment to be more effectively tailored, he explained.

Knowledge about concussions has improved; in the 2011-13 dataset, the counselling given was more cautious and ominous, Dr Neidecker noted. Adequate communication and a positive outlook may have helped reduce reported symptoms, and may be essential for patients with anxiety. 

Source: News-Medical.Net


Journal information:
 Neidecker, J. M., et al. (2021) First-time sports-related concussion recovery revisited: management changes and impact on recovery. Journal of Osteopathic Medicine. doi.org/10.1515/jom-2020-0106.

Black American Children Have Higher Rates of Shellfish and Fish Allergies

A study from Rush University Medical Center in the US has shown that black children in that country are more likely to have allergies to fish and shellfish than white children.

Some 8% of children in the US suffer from food allergies, which can result in signs and symptoms such as hives, breathing and digestive problems or anaphylaxis, sometimes severe enough to be life-threatening.

Lead author Dr Mahboobeh Mahdavinia at Rush University Medical Center, explained: “Food allergy is a common condition in the U.S., and we know from our previous research that there are important differences between African-American and white children with food allergy, but there is so much we need to know to be able to help our patients from minority groups.”

The study found that the black children were more likely to have an allergy to shellfish and fin fish, and also higher odds of having a wheat allergy, compared to the white children. The researchers believe the reason for this is environmental and socioeconomic: in the US, black children are more likely to be exposed to cockroaches than white children due to the increased probability of living in more socioeconomically deprived areas.

Tropomyosin, a protein found in two common household allergens, dust mite and cockroaches, share 80% of amino acid sequencing with shellfish. Some 72-98% of individuals allergic to prawns have an immunoglobin E response to tropomyosin. It has also been found in fin fish. Although the exact mechanism by which the allergy is established is not known, it provides evidence as to the importance of reducing the exposure of black children to cockroaches.

The study also showed that shellfish allergy was associated with increased asthma risk in black children. “This information can help us care for not only a child’s food allergy, but all of their allergic diseases, including asthma, allergic rhinitis and atopic dermatitis,” said co-author Susan Fox, PA-C, MMS, an allergy and immunology physician assistant at Rush University Medical Center.

The increased risk of asthma combined with food allergies can prove a lethal combination for children. “A major concern is that there is a higher prevalence of asthma in African-American children with food allergies when compared with white children with food allergies. Approximately 70% of fatal food anaphylaxis is accompanied by asthma. African-American children are at a two- to threefold risk of fatal anaphylaxis compared to white children,” Dr Mahdavinia said. “By knowing this information, it can identify [our] most at risk patients.

“We need to conduct further research to identify food allergies and food sensitivities among all races and ethnicities so we can develop culturally-sensitive and effective educational programs to improve food allergy outcomes for all children,” Dr Mahdavinia concluded.

Source: News-Medical.Net

Coordination in Children Does Not Predict Aerobic Fitness

Even though clumsy children find it hard to perform as well in sports that require a lot of coordination, they are no less aerobically fit than their more agile peers.

This finding comes from a new study from the Faculty of Sport and Health Sciences of the University of Jyväskylä and the Institute of Biomedicine of the University of Eastern Finland. The general view is that children who have poor motor coordination tend to be overweight and have a low level of aerobic fitness – but this turns out not to be the case.

The study participants consisted of 332 children aged 7 to 11 years, with the study’s aim being to explore the association between aerobic fitness, body fat content, and motor skills. A maximum bicycle ergometer test was used to measure aerobic fitness and bioimpedance and DXA devices measured body composition. Common methods were used to gauge motor skills.

Eero Haapala, PhD, Faculty of Sport and Health Sciences, University of Jyväskylä, said: “Our study clearly demonstrated that aerobic fitness is not linked to motor skills when body composition is properly taken into account.”

She added: “Also, aerobic fitness was not strongly associated with overweight or obesity. Therefore, it seems that the role of poor aerobic fitness as a risk factor for poor motor skills and excess body weight has been strongly exaggerated.”

Earlier studies had shown that varied physical exercise can develop motor skills, regardless of body weight or aerobic fitness, and that less sedentary behaviour and more exercise protects against becoming overweight.

“The key message of our study is that even a child who is unfit can be motorically adept and the heart of a clumsier kid can be as fit as her or his more skilful peer,” Haapala concluded. “In addition, high levels of varied physical activity and reduced sedentary behaviour are central to the development of motor skills and the prevention of excess weight gain since childhood.”

Source: News-Medical.Net

Journal information: Haapala, EA, Gao, Y, Lintu, N, et al. Associations between cardiorespiratory fitness, motor competence, and adiposity in children. Transl Sports Med. 2021; 4: 56– 64. https://doi.org/10.1002/tsm2.198

Poor Diet is an Important Factor of Childhood Obesity

A Baylor University study has shown that market-bought food in addition to the traditional diet reliably predicted obesity in Amazonian children, a result that has important insights into the global childhood obesity epidemic.

Globally, 6% of girls and 8% of boys in 2016 were obese, compared to 1% in 1975. In South Africa, 13% of children under the age of five are obese.

“The importance of a poor diet versus low energy expenditure on the development of childhood obesity remains unclear,” said lead author Samuel Urlacher, PhD, of Baylor University. “Using gold-standard measures of energy expenditure, we show that relatively lean, rural forager-horticulturalist children in the Amazon spend approximately the same total number of calories each day as their much fatter peri-urban counterparts and, notably, even the same number of calories each day as children living in the industrialised United States.”

Factors such as income and access to running water were used to establish market integration. Children’s physical activity was measured with wearable devices and immune activity by measuring biomarkers obtained from minimally invasive finger-prick blood samples. Most importantly, children’s daily energy expenditure was measured with the “doubly labeled water” stable isotope-tracking method and children’s resting energy expenditure using respirometry. These are both participant-friendly, gold-standard techniques.

A third of peri-urban children were overweight, while zero rural children were, and peri-urban children on average had 65% more body fat than rural children. Peri-urban and rural children had similar levels of physical activity, and market integration, immune activity and physical activity had no effect on expenditure between rural and peri-urban children’s energy expenditure, in common with previous studies. Compared to rural children, peri-urban children spent 108 less calories while at rest, which is thought to be due to lower immune activity. Most importantly, variation in market foods was related to children’s level of body fat.

“Our findings are in line with a growing body of research pointing toward poor diet being the most important factor underlying the development of childhood obesity,” Urlacher said. “Exercise is absolutely still a critical part of this equation and is essential for living a healthy life, but diet increasingly appears to be most directly related to children’s adiposity and long-term energy balance.”

The researchers plan to follow the children longitudinally to record any development obesity and cardiovascular problems.

Source: News-Medical.Net

Antibiotic Overuse by Children’s Hospitals Contributing to Antibiotic Resistance

Children’s hospitals may be contributing to antibiotic resistance by overprescription of antibiotics, according to a recent study.

The study, conducted by the University of Alabama at Birmingham (UAB),   found that in 51 children’s hospitals across the United States, rates of antibiotic administration ranged from 22% to 52%. Approximately a quarter of children receiving antibiotics were receiving them incorrectly. This adds to a growing body of evidence that points to antibiotics overuse and misuse by children’s hospitals – which ought to know better.Study co-author, Dr Jason Newland said, “There’s no doubt: We’ve seen some extra use of antibiotics, The impact of the pandemic on antibiotic use will be significant.

“The study’s numbers are likely an underestimate since the research involved 32 children’s hospitals already working together on proper antibiotic use. Newland said the US’ more than 250 children’s hospitals need to improve. Even though COVID fears have reduced the numbers of children’s hospital visits, antibiotics are still being prescribed via telemedicine.

“I hear a lot about antibiotic use for the ‘just in case’ scenarios,” said Dr Joshua Watson, at Nationwide Children’s Hospital in Ohio. “We underestimate the downsides.”

Dr Shannon Ross, an associate professor of paediatrics and microbiology at UAB, said that not all doctors have been taught the correct use of antibiotics. Regarding this overuse, she said, “Many of us don’t realize we’re doing it. It’s sort of not knowing what you’re doing until someone tells you.”
Unnecessary antibiotic use is a problem, and the pandemic “has thrown a little bit of gas on the fire,” said Dr Mark Schleiss, a paediatrics professor at the University of Minnesota Medical School.

“It’s irresponsible,” said Christina Fuhrman, who almost lost her infant daughter to a Clostridium difficile infection, and who now advocates for correct antibiotic use. Along with parents begging for antibiotics in paediatricians’ offices, the situation is “creating a monster.”
Many studies have attested to the rise of C. diff in children, which causes gastrointestinal problems. A 2017 study found that cases of a certain multidrug-resistant Enterobacteriaceae type rose 700% in American children in just eight years. And a steady stream of research points to the stubborn prevalence in kids of the better-known MRSA, or methicillin-resistant Staphylococcus aureus.

“It’s getting more and more worrisome,” said Ross. “We have had patients we have not been able to treat because we’ve had no antibiotics available.”

Source: News-Medical.Net

Journal information: Tribble A, Lee B, Flett K et al. Appropriateness of Antibiotic Prescribing in United States Children’s Hospitals: A National Point Prevalence Survey. Clinical Infectious Diseases. 2020;71(8):e226-e234. doi:10.1093/cid/ciaa036 

Healthy Country Childhood: The Protective “Farm Effect” on Asthma

The presence of a diverse gut microbiome appears to exert a protective effect against asthma, which may explain the largely protective “farm effect” on asthma.

European researchers analysed faecal samples from over 700 infants raised on farms, and found a strong environmental effect. It was anticipated that nutrition would be a strong contributor to gut microbiome maturation, but there were unanticipated environmental effects such as exposure to animal sheds.

Researchers found that faecal butyrate (related to butyrate, a short-chain fatty acid), which is already known to protect against asthma in mice, had an inverse association with asthma. They ascribed this to gut bacteria such as Roseburia and Coprococcus which have the potential of producing short chain fatty acids. Children with more matured gut microbiomes had Roseburia and Coprococcus present.

“Our study provides further evidence that the gut may have an influence on the health of the lung. A mature gut microbiome with a high level of short chain fatty acids had a protective effect on the respiratory health of the children in this study. This suggests the idea of a relevant gut-lung axis in humans,” said Dr. Markus Ege, professor for clinical-respiratory epidemiology at the Dr. von Hauner Children’s Hospital. “This also means, however, that an immature gut microbiome may contribute to the development of diseases. This emphasizes the need for prevention strategies in the first year of life, when the gut microbiome is highly plastic and amenable to modification.”

Source: News-Medical.Net

COVID Antibodies in Children without the Disease

One case in Australia of children producing COVID antibodies while being exposed to their parents were ill with the disease has shed light into the way children appear to remain largely unaffected by it.

The parents of three children fell ill after attending a wedding, developing COVID with all the normal symptoms. Fortunately, they did not require hospitalisation but the whole family was tested for COVID. To the amazement of clinicians, the test for all three children came back negative, as did a subsequent re-test. The two older children had mild symptoms of COVID.
“It was jaw-droppingly amazing because they’d spent a week and a half with us while we were COVID-positive,” said their mother, Leila Sawenko.

Intrigued, researchers asked the family to come back for a series of tests. While polymerase chain reaction (PCR) tests failed to detect SARS-CoV-2, saliva samples showed SARS-CoV-2 antibodies. The children’s cytokine levels remained low, consistent with their lack of symptoms. 

Researchers believe that, unlike their parents, the children’s immune system staged such an effective response that viral replication was severely restricted. 

“The discordance between the virological PCR results and clinical serological testing, despite an evident immune response, highlights limitations to the sensitivity of nasopharyngeal PCR and current diagnostic serology in children,” wrote the researchers.

Source: Science Alert