Pediatric Chronicle Autumn 2014

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PEDIATRIC

CHRONICLE Canada’s National Newspaper of Pediatric Medicine pediatric.chronicle.ca Preview Edition • Autumn 2014

‘Super Lice’?

UTIs in children Canadian Paediatric Society urges improved management

Non-pesticide therapies available to treat strain in Canada by Halvor

R. Kinskela

for Pediatric Chronicle

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Study shows many North American lice infestations are resistant to available pesticide-based products

Dear Doctor: We are pleased to introduce you to this new publication, which we describe, with a fair bit of pride and only a trace measure of irony, as the Pediatric Literature’s New Kid on the Block. Metaphors aside, this is a different type of periodical, and emphatically not your father’s (or mother’s) paediatrics journal. Pediatric chroNicLe was designed not to add to the volumes of data regularly presented to the practitioner—but rather to aid in the orderly navigation and consideration of useful clinical information by over-busy pro—please turn to page 3

by Emily

Innes

Pediatric Chronicle Assistant Editor

n response to recent studies that have led to changes in the management of urinary tract infections (Utis) in children, the canadian Paediatric Society released a position statement and practice points on Utis in June. the cPS last released guidelines and recommendations on the management of Utis in 2004, and the authors note in this new statement that since then meta-analytic reviews have investigated the utility of diagnostic tests, radiological assessment and randomized control treatment trials published. as well, in 2011 the american academy of Pediatrics revised its clinical practice guidelines for diagnosing and managing febrile Uti in young children. the cPS investigators recommend that Utis should be ruled out in infants from two to 36 months with a fever higher than 39°c and no other source for fever on history or physical examination. these patients should have urine collected for urinalysis, and if not completely clear then urine should be collected by catheter or SPa to be sent for microscopy and culture before prescribing antibiotics. “the main challenge [in diagnosing Utis in children] is getting a good urine sample . . . in children who are not yet toilet-trained,” said dr. Joan L. robinson, an albertabased pediatrician, chair of the cPS’ infectious diseases and immuniza-

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tion committee, and one of the statement authors. She said some physicians and nurses are reluctant to use the recommended method, a catheter, “so sometimes the urine is collected by other means, most commonly by a little plastic bag that has tape on it that is put over the genitals. But the problem with that is that commonly bacteria can end up in that bag that were not actually in the bladder . . . So then fairly often a positive result comes back even if the child does not have a urinary tract infection.” if a physician is uncomfortable using catheters with infants, she suggests referring the patient to a pediatric emergency department, if practical. having the parent catch a urine sample in a sterile container when the child urinates is an alternative, although this can be time-consuming. Antibiotic resistance the problem with over diagnosis of Utis, according to dr. robinson, is the growing concern of antibiotic resistance. there have been relatively few “new classes of antibiotics [in the last decade] and as time goes by we get more and more bacteria that are resistant to the antibiotics that we currently have. “one thing that we know will work is that we can markedly decrease the use of antibiotics, and cer—please turn to page 12

Childhood obesity: Some BMI metrics are superior fat-mass proxies in measuring change see page 6

More awareness and support needed for pediatric patients by Emily

Innes

Pediatric Chronicle Assistant Editor

anadian researchers have identified that availability, cost, and product labelling are major barriers to adherence to a gluten-free (GF) diet for pediatric patients with celiac disease, according to their study published in the journal Paediatrics & Child Health (June/July 2014; 19(6): 305-309). Parents of patients between the ages of two to 12 years with biopsy-confirmed celiac disease were surveyed using a questionnaire to determine factors that affect adherence to a GF diet. adolescents 13 to 18 years of age responded to the survey themselves. overall adherence was high, the authors noted, though it was lower for adolescents. through a ranking system of one (never) to 10 (always) based on how often the issue was problematic, the investigators identified the barriers listed above. “the adherence at home and at school was quite good, but where people struggled was in social activities, in restaurants [and when] eating out, at parties. certainly at sleepovers and camps adherence was not as good,” said Dr. Mohsin Rashid (pictured above right), a pediatric gastroenterologist, and professor in the department of Paediatrics & Medical education at dalhousie University in halifax, and co-lead investigator of the study. “[a gluten-free diet] is a really big lifestyle change. it can be done, and many people do really well with this, but it has its own challenge.”

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A different threshold in recent years there has been a trend toward individuals without celiac disease following a GF diet. this, according to dr. rashid, has pros and cons for the pediatric patients with celiac disease. “the thing that we need to be very cautious about is that people with celiac disease cannot take any gluten at all— their threshold for contamination is very different,” said dr. rashid, a member of the national Professional advisory Board of the canadian celiac association. “i think as more people get on GF diets, for whatever reason, the food industry will respond. they are responding, restaurants are offering gluten-free —please turn to page 12

Image courtesy Walter Siegmund

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ccording to some canadian specialists, North americans should not panic about the report published in the journal Entomological Society of America (Mar. 2014; 51(2):450 –457) regarding the growing frequency of knockdown-type resistance allele in human head lice, known as “super lice.” Non-pesticide therapies, not discussed by the researchers, are now available and have high rates of safety and efficacy. Dr. John Kraft (pictured above left), with the Lynde institute for dermatology in Mark ham, ont., says that while the news that lice are becoming resistant to pest icide-based treatment products in the majority of infestations in North america is concerning, “there are other options.” —please turn to page 12

Celiac disease


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