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Research
Revisiting the inoculum effect for Streptococcus pyogenes with a hollow fibre infection modelSevere, invasive Streptococcus pyogenes (Strep A) infections result in greater than 500,000 deaths annually. First line treatment for such infections is benzylpenicillin, often with the addition of clindamycin, but treatment failure can occur with this regimen. This failure has been partially attributed to the inoculum effect, which presents as reduced antibiotic susceptibility during high bacterial density and plateau-phase growth.
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Botulinum toxin and surgical intervention in children and adolescents with cerebral palsy: who, when and why do we treat?This audit aimed to increase understanding of the long-term outcomes of evidence-based medical and surgical interventions to improve gross motor function in children and adolescents with Cerebral Palsy.
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Birth prevalence of congenital heart defects in Western Australia, 1990–2016We describe the birth prevalence and characteristics of congenital heart defects in a geographically defined Australian population. This descriptive, population-based study examined congenital heart defects in live births, stillbirths and pregnancy terminations ascertained by the Western Australian Register of Developmental Anomalies, 1990-2016.
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Molecular diagnosis of scabies using a novel probe-based polymerase chain reaction assay targeting high-copy number repetitive sequences in the sarcoptes scabiei genomeThe suboptimal sensitivity and specificity of available diagnostic methods for scabies hampers clinical management, trials of new therapies and epidemiologic studies. Additionally, parasitologic diagnosis by microscopic examination of skin scrapings requires sample collection with a sharp scalpel blade, causing discomfort to patients and difficulty in children. Polymerase chain reaction (PCR)-based diagnostic assays, combined with non-invasive sampling methods, represent an attractive approach.
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A surveillance clinic for children and adolescents with, or at risk of, hereditary cancer predisposition syndromesHereditary cancer predisposition syndromes (HCPS) account for at least 10% of paediatric cancers.1 Li‐Fraumeni syndrome (LFS) is a dominant HCPS caused by mutations in the TP53 gene and is associated with an 80–90% lifetime risk of cancer, commencing in infancy.2 Children of affected individuals are at 50% risk of inheriting the family mutation.
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Using a trauma informed practice framework to enhance understanding of and identify support strategies for behavioural difficulties in young people with Prader-Willi syndromeBehavioural support for young people with Prader-Willi syndrome (PWS) is necessary in home and school environments. The Trauma Informed Practice (TIP) framework has been used to support young people with complex behavioural needs in school settings. To identify parent and professional perspectives on behavioural challenges experienced by young people with PWS and strategies for supports, to inform understanding of how they are aligned with the TIP framework.
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Impact of a revised postoperative care plan on pain and recovery trajectory following pediatric tonsillectomyA previous cohort of adenotonsillectomy patients at our institution demonstrated moderate-severe post-tonsillectomy pain scores lasting a median (range) duration of 6 (0-23) days and postdischarge nausea and vomiting affecting 8% of children on day 1 following surgery. In this subsequent cohort, we evaluate the impact of changes to our discharge medication and parental education on post-tonsillectomy pain and recovery profile.
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The impact of surgical cancellations on children, families, and the health system in an Australian paediatric tertiary referral hospitalReasons for elective surgery cancelations and their impact vary from one institution to another. Cancelations have emotional and financial implications for patients and their families. Our service has a particularly broad and geographically diverse patient population; hence, we sought to examine these impacts in our service.
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Increased nasal Streptococcus pneumoniae presence in Western environment associated with allergic conditions in Chinese immigrantsChinese immigrants living in Australia experience increased allergic conditions: asthma, eczema, hay fever and wheeze. Recently we reported diminished innate cytokine responses in long-term immigrants, potentially increasing their pathogenic viral load and microbial carriage. We hypothesise that a Western environment changes the nasal microbiome profile, and this altered profile may be associated with the development of allergic conditions. In this cross-sectional study, we aimed to examine the loading of viral and microbial respiratory pathogens in the upper airway.
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Vaccine coverage in children born to migrant mothers in Australia: A population-based cohort studyOverall, infant immunisation coverage is currently >90% in Australia, but there are pockets of under-immunised children including children from migrant backgrounds.