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Chemical analysis of fresh and aged Australian e-cigarette liquidsTo assess the chemical composition of electronic cigarette liquids (e-liquids) sold in Australia, in both their fresh and aged forms. Design, setting: Gas chromatography–mass spectrometry analysis of commercial e-liquids sold in Australia (online and physical stores).
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Behavioural and neuropsychological outcomes in children exposed in utero to maternal labour epidural analgesiaRecent studies report conflicting results regarding the relationship between labour epidural analgesia (LEA) in mothers and neurodevelopmental disorders in their offspring. We evaluated behavioural and neuropsychological test scores in children of mothers who used LEA.
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Intrauterine Growth Restriction Promotes Postnatal Airway Hyperresponsiveness Independent of Allergic DiseaseIntrauterine growth restriction (IUGR) is associated with asthma. Murine models of IUGR have altered airway responsiveness in the absence of any inflammatory exposure. Given that a primary feature of asthma is airway inflammation, IUGR-affected individuals may develop more substantial respiratory impairment if subsequently exposed to an allergen. This study used a maternal hypoxia-induced mouse model of IUGR to determine the combined effects of IUGR and allergy on airway responsiveness.
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RISING STARS: The heat is on: how does heat exposure cause pregnancy complications?The incidence and severity of heatwaves are increasing globally with concomitant health complications. Pregnancy is a critical time in the life course at risk of adverse health outcomes due to heat exposure. Dynamic physiological adaptations, which include altered thermoregulatory pathways, occur in pregnancy.
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The airway smooth muscle layer is structurally abnormal in low birth weight infants: implications for obstructive diseaseCitation: Wang KCW, Elliot JG, Saglani S, et al. The airway smooth muscle layer is structurally abnormal in low birth weight infants: implications
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Quantitative electroencephalogram and machine learning to predict expired sevoflurane concentration in infantsProcessed electroencephalography (EEG) indices used to guide anesthetic dosing in adults are not validated in young infants. Raw EEG can be processed mathematically, yielding quantitative EEG parameters (qEEG). We hypothesized that machine learning combined with qEEG can accurately classify expired sevoflurane concentrations in young infants. Knowledge from this may contribute to development of future infant-specific EEG algorithms.
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Airway-associated adipose tissue accumulation is increased in a kisspeptin receptor knockout mouse modelAirway-associated adipose tissue increases with body mass index and is a local source of pro-inflammatory adipokines that may contribute to airway pathology in asthma co-existing with obesity. Genetic susceptibility to airway adiposity was considered in the present study through kisspeptin/kisspeptin receptor signalling, known to modulate systemic adiposity and potentially drive airway remodelling.
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Comment on Karthikeyan et al. Concordance between In Vitro and In Vivo Relative Toxic Potencies of Diesel Exhaust Particles from Different Biodiesel Blends. Toxics 2024, 12, 290Dr Katherine Alexander Landwehr Larcombe BSc(Hons) BScEnv (Hons) PhD Senior Research Officer Honorary Research Fellow Katherine.landwehr@
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Patient-related factors impact the implementation of inpatient antibiotic allergy delabelingThe clinical consequences of an antibiotic allergy label are detrimental, impacting health care delivery and patient outcomes. We assessed hospital inpatients with intent to offer free antibiotic allergy labeling assessment within a randomized controlled trial. We sought to determine the feasibility of establishing an adult antibiotic allergy delabeling service in a Western Australian tertiary public hospital.
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Jet versus vibrating mesh nebulizer for tobramycin aerosol in spontaneously breathing children with tracheostomies: A simulation studyTracheostomy tubes act as foreign bodies, predisposing the surrounding airway to respiratory infections. Initial treatment for infections is topical - nebulized tobramycin - although guidelines for standardized treatment are lacking.
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In utero and early-life nitrate in drinking water impacts lung function of weanling ratsConsumption of nitrate in drinking water has previously been associated with a range of adverse health effects, including methemoglobinemia and potentially cancer. In animal models, it has been shown to impact respiratory structure and function, however, there is a paucity of data of the effects of in utero exposure on the respiratory health of offspring.
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More than half of front-line healthcare workers unknowingly used an N95/P2 mask without adequate airborne protection: An audit in a tertiary institutionFront-line staff routinely exposed to aerosol-generating procedures are at a particularly high risk of transmission of severe acute respiratory syndrome coronavirus. We aimed to assess the adequacy of respiratory protection provided by available N95/P2 masks to staff routinely exposed to aerosol-generating procedures.
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Kids voices: Exploring children's perspective of tonsillectomy surgeryBritta Regli-von Ungern-Sternberg AM FAHMS MD, PhD, DEAA, FANZA Chair of Paediatric anaesthesia, University of Western Australia; Consultant
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Exposure to biodiesel exhaust is less harmful than exposure to mineral diesel exhaust on blood-brain barrier integrity in a murine modelEmerging data suggest that air pollution is a persistent source of neuroinflammation, reactive oxygen species, and neuropathology that contributes to central nervous system disorders. Previous research using animal models has shown that exposure to diesel exhaust causes considerable disruption of the blood-brain barrier, leading to marked neuroinflammation.
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Soy Biodiesel Exhaust is More Toxic than Mineral Diesel Exhaust in Primary Human Airway Epithelial CellsExposure to biodiesel exhaust resulted in significantly greater cell death and a greater release of immune mediators compared to both air controls and ULSD exhaust
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Defective aeroallergen surveillance by airway mucosal dendritic cells as a determinant of riskA hallmark of atopic asthma is development of chronic airways hyper-responsiveness (AHR) that persists in the face of ongoing exposure to perennial...
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An assessment of opioids on respiratory depression in children with and without obstructive sleep apneaObstructive sleep apnea is a risk factor for respiratory depression following opioid administration as well as opioid-induced hyperalgesia. Little is known on how obstructive sleep apnea status is associated with central ventilatory depression in pediatric surgical patients given a single dose of fentanyl.
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Perioperative management of infant inguinal hernia surgery; a review of the recent literatureInguinal hernia surgery is one of the most common electively performed surgeries in infants. The common nature of inguinal hernia combined with the high-risk population involving a predominance of preterm infants makes this a particular area of interest for those concerned with their perioperative care. Despite a large volume of literature in the area of infant inguinal hernia surgery, there remains much debate amongst anesthetists, surgeons and neonatologists regarding the optimal perioperative management of these patients.
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The effect of the COVID-19 pandemic on paediatric anaesthesia research as evidenced by the contrasting recruitment experiences of centres in Australia and ScotlandAt two hospitals in Western Australia, we conducted a prospective, open-label, randomised, controlled trial of 240 patients undergoing tonsillectomy to investigate the effect of chewing a confectionery jelly snake on postoperative nausea and vomiting. The results were published in Anaesthesia Critical Care & Pain Medicine. Recruitment for this study was completed uneventfully between July 2018 and August 2019.
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Taste-Masked Flucloxacillin Powder Part 2: Formulation Optimisation Using the Mixture Design Approach and Storage StabilityFlucloxacillin is prescribed to treat skin infections but its highly bitter taste is poorly tolerated in children. This work describes the application of the D-optimal mixture experimental design to identify the optimal component ratio of flucloxacillin, Eudragit EPO and palmitic acid to prepare flucloxacillin taste-masked microparticles that would be stable to storage and would inhibit flucloxacillin release in the oral cavity while facilitating the total release of the flucloxacillin load in the lower gastrointestinal tract.