Publications by authors named "David W Herd"

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.

View Article and Find Full Text PDF

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.

View Article and Find Full Text PDF

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.

View Article and Find Full Text PDF

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.

View Article and Find Full Text PDF

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.

View Article and Find Full Text PDF

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.

View Article and Find Full Text PDF

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.

View Article and Find Full Text PDF

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.

View Article and Find Full Text PDF

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.

View Article and Find Full Text PDF

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.

View Article and Find Full Text PDF

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.

View Article and Find Full Text PDF

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.

View Article and Find Full Text PDF

Objective: Voiding cystourethrography (VCU) is a distressing procedure for children. Conscious sedation using oral midazolam may reduce this distress, but its use may also alter the ability of the VCU to show vesicoureteric reflux (VUR). The objectives of our study were to assess the effectiveness of conscious sedation using oral midazolam when administered routinely in children undergoing VCU and to ensure that conscious sedation using oral midazolam does not alter the ability of VCU to show VUR.

View Article and Find Full Text PDF