Publications by authors named "David Herd"

Objective: Bell's palsy is a sudden unilateral weakness of the facial muscles due to idiopathic lower motor neuron palsy of cranial nerve VII. We set out to determine the level of agreement in the severity of facial palsy based on the House-Brackmann scale between face-to-face assessment by clinicians, and independent clinician assessment of photographs and videos.

Design: Secondary analysis of children enrolled in a triple blind, randomised controlled trial assessing recovery rates following steroid treatment versus placebo for Bell's palsy who had photographs and videos recorded initially and at subsequent reviews.

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Aim: To evaluate the impact of a participatory, action-oriented implementation study, guided by the integrated Promoting Action on Research Implementation in Health Services framework, for optimising pain care processes in a tertiary paediatric emergency department.

Design: Hybrid type 3 implementation effectiveness.

Methods: A collaborative appraisal of the context and culture of pain care informed two interdependent action cycles: Enabling nurse-initiated analgesia and involving families in pain care.

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Background: Information on the medium-term recovery of children with Bell palsy or acute idiopathic lower motor neuron facial paralysis is limited.

Methods: We followed up children aged 6 months to <18 years with Bell palsy for 12 months after completion of a randomized trial on the use of prednisolone. We assessed facial function using the clinician-administered House-Brackmann scale and the modified parent-administered House-Brackmann scale.

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Objective: To describe the prevalence and severity of pain experienced by children with Bell's palsy over the first 6 months of illness and its association with the severity of facial paralysis.

Methods: This was a secondary analysis of data obtained in a phase III, triple-blinded, randomised, placebo-controlled trial of prednisolone for the treatment of Bell's palsy in children aged 6 months to <18 years conducted between 13 October 2015 and 23 August 2020 in Australia and New Zealand. Children were recruited within 72 hours of symptom onset and pain was assessed using a child-rated visual analogue scale (VAS), a child-rated Faces Pain Score-Revised (FPS-R) and/or a parent-rated VAS at baseline, and at 1, 3 and 6 months until recovered, and are reported combined across treatment groups.

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Background And Objectives: Bell palsy is the third most frequent diagnosis in children with sudden-onset neurologic dysfunction. The cost-effectiveness of treating Bell palsy with prednisolone in children is unknown. We aimed to assess the cost-effectiveness of prednisolone in treating Bell palsy in children compared with placebo.

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Objective: Currently there is no parent administered scale for facial nerve function in children. We set out to assess the agreement between a newly developed parent-administered modified version of the House-Brackmann (HB) scale and the standard clinician-administered HB scale in children with Bell's palsy.

Study Design: Secondary analysis of a triple-blind, randomized, placebo-controlled trial of corticosteroids to treat idiopathic facial paralysis (Bell's palsy) in children (6 months to <18 years).

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Background And Objectives: Corticosteroids are used to treat the early stages of idiopathic facial paralysis (Bell palsy) in children, but their effectiveness is uncertain. We set out to determine whether prednisolone improves the proportion of children with Bell palsy with complete recovery at 1 month.

Methods: We conducted a double-blind, placebo-controlled, randomized trial of prednisolone in children presenting to emergency departments with Bell palsy.

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Background: Pain is a central and distressing experience for children in the emergency department (ED). Despite the harmful effects of pain, ED care often falls short of providing timely and effective pain relief. Knowledge translation research targeting systems of care holds potential to transform paediatric pain care.

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Background: Paediatric distal forearm fractures are a common ED presentation. They can be diagnosed with point-of-care ultrasound (POCUS) as an alternative to X-rays. Given that ED nurse practitioners (NPs) are relied on for the diagnosis of paediatric fractures, it is important to describe the diagnostic accuracy of NP-conducted POCUS versus X-ray.

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Background: Bell's palsy or acute idiopathic lower motor neurone facial paralysis is characterized by sudden onset paralysis or weakness of the muscles to one side of the face controlled by the facial nerve. While there is high level evidence in adults demonstrating an improvement in the rate of complete recovery of facial nerve function when treated with steroids compared with placebo, similar high level studies on the use of steroids in Bell's palsy in children are not available. The aim of this study is to assess the utility of steroids in Bell's palsy in children in a randomised placebo-controlled trial.

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Background: Intravenous cannulation is a painful procedure that can provoke anxiety and stress. Injecting local anaesthetic can provide analgesia at the time of cannulation, but it is a painful procedure. Topical anaesthetic creams take between 30 and 90 minutes to produce an effect.

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An accurate and comprehensive pain assessment is crucial for adequate pain management in pre- and early verbal children during painful medical procedures. This study used an inductive approach to explore the processes involved in parental pain assessment and to develop a new model of Parental Assessment of Acute Child Pain. Participants were 19 parents of children aged under 3 years who had previously or were potentially about to experience an intravenous cannula or nasogastric tube insertion.

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Background: Intravenous racemic ketamine is commonly administered for procedural sedation, although few pharmacokinetic studies have been conducted among children. Moreover, an optimal sampling schedule has not been derived to enable the conduct of pharmacokinetic studies that minimally inconvenience study participants.

Methods: Concentration-time data were obtained from 57 children who received 1-1.

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A short-cut review of the literature was carried out to establish whether the biological marker procalcitonin could safely rule out the diagnosis of meningococcal disease (MCD) in children. Using the below outlined search method and after the exclusion of the non-relevant papers, two were found to be relevant to the specific question. The author, date and country of publication, patient group studied, study type, relevant outcomes, results and study weaknesses of these are shown in table 3.

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Aims: The aim of this study was to describe ketamine pharmacokinetics when administered orally to children suffering from burn injury in >10% body surface area.

Methods: Children (n = 20) were given ketamine 5 or 10 mg·kg(-1) orally 20 min prior to presentation for surgical procedures. Anesthesia during procedures was maintained with a volatile anesthetic agent.

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Introduction: Starship Hospital Children's Emergency Department (CED) uses EMLA for topical anaesthesia during insertion of intravenous cannula (IVC). Amethocaine has recently been shown to offer more effective pain relief and work faster than EMLA, but may be more expensive.

Aim: To determine cost implications of introducing topical amethocaine into CED practice.

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Objective: To audit pain management practices and organization in paediatric ED across Australia and New Zealand.

Methods: Retrospective audit of pain management practices in Paediatric Research in Emergency Departments International Collaborative ED in 20 cases each of migraine, abdominal pain and femoral shaft fracture. Review of organizational status of pain management at Paediatric Research in Emergency Departments International Collaborative sites.

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Objective: To describe intravenous ketamine dosing regimens for children requiring brief procedural sedation.

Methods: Time-concentration and sedation profiles were simulated in children (2, 6, and 12 years old) using published pediatric pharmacokinetic and pharmacodynamic parameter estimates. Single-dose, repeat-dosing, and infusion regimens to achieve sedation level of less than 2 (arouses slowly to consciousness, with sustained painful stimulus) for 15 minutes were investigated.

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Background: Voiding cystourethrograms are distressing for children and parents. Nonpharmacological methods reduce distress. Pharmacological interventions for VCUG focus on sedation as well as analgesia, anxiolysis, and amnesia.

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Aim: We aimed to produce a racemic ketamine manual infusion regimen capable of maintaining a steady-state blood concentration associated with anesthesia in children aged 1.5-12 years.

Method: The literature was searched for a ketamine blood concentration associated with anesthesia in humans.

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Background: The aim of this study was to describe ketamine pharmacodynamics (PD) in children. Adult ketamine concentrations during recovery are reported as 0.74 mg.

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Background: Norketamine, a metabolite of ketamine, is an analgesic with a potency one-third that of ketamine. The aim of this study was to describe norketamine pharmacokinetics in children in order to predict time-concentration profiles for this metabolite after racemic ketamine single dose and infusion administration. The possible analgesic potential resulting from norketamine concentration may then be predicted using simulation.

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Background: The aim of this study was to describe ketamine pharmacokinetics in children to simulate time-concentration profiles to predict duration of concentrations associated with anesthesia, arousal and analgesia.

Methods: Children presenting for painful procedures in the Emergency Dept were given ketamine 1-1.5 mgxkg(-1) i.

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