Karen Oldfield

ORCID: 0000-0003-4734-8488
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About
Contact & Profiles
Research Areas
  • Cannabis and Cannabinoid Research
  • Asthma and respiratory diseases
  • Respiratory and Cough-Related Research
  • Allergic Rhinitis and Sensitization
  • Religion, Spirituality, and Psychology
  • Chronic Obstructive Pulmonary Disease (COPD) Research
  • Inhalation and Respiratory Drug Delivery
  • Forensic Toxicology and Drug Analysis
  • Psychedelics and Drug Studies
  • Poisoning and overdose treatments
  • Mycobacterium research and diagnosis
  • Food Allergy and Anaphylaxis Research
  • Childhood Cancer Survivors' Quality of Life
  • Bacterial Identification and Susceptibility Testing
  • Sleep and Wakefulness Research
  • Heart Failure Treatment and Management
  • Substance Abuse Treatment and Outcomes
  • Digital Imaging in Medicine
  • Empathy and Medical Education
  • Epilepsy research and treatment
  • Prenatal Substance Exposure Effects
  • Toxin Mechanisms and Immunotoxins
  • Pleural and Pulmonary Diseases
  • Mental Health Treatment and Access
  • Pharmaceutical industry and healthcare

Medical Research Institute of New Zealand
2019-2024

Wellington Hospital
2007-2022

Capital and Coast District Health Board
2022

Victoria University of Wellington
2020-2021

University of Southampton
1998

Moorfields Eye Hospital NHS Foundation Trust
1998

Institute of Ophthalmology
1998

Wessex Institute of Technology
1998

Birmingham City Hospital
1997

In double-blind, placebo-controlled trials, budesonide–formoterol used on an as-needed basis resulted in a lower risk of severe exacerbation asthma than use short-acting β2-agonist (SABA); the was similar to that budesonide maintenance therapy plus SABA. The availability data from clinical trials designed better reflect practice would be beneficial.

10.1056/nejmoa1901963 article EN New England Journal of Medicine 2019-05-19

10.1016/s0140-6736(19)31948-8 article EN The Lancet 2019-08-23

10.1016/s2213-2600(20)30053-9 article EN The Lancet Respiratory Medicine 2020-03-12

An anonymized point-prevalence survey of methicillin-resistant Staphylococcus aureus (MRSA) carriage was conducted amongst a stratified random sample nursing home residents in Birmingham, UK, during 1994. Microbiological sampling from noses, fingers and the environment undertaken. Information about potential risk factors for acquisition MRSA gathered. isolated cultures nose or 33 191 who took part study (17%) but only 1 positive had clinical infection. Although just 10 87 environmental...

10.1017/s0950268896007182 article EN Epidemiology and Infection 1997-02-01

Background Asthma is the most common chronic childhood respiratory condition globally. Inhaled corticosteroid (ICS)–formoterol reliever-based regimens reduce risk of asthma exacerbations compared with conventional short-acting β 2 -agonist (SABA) in adults and adolescents. The current limited evidence for anti-inflammatory reliever therapy children means it unknown whether these findings are also applicable to children. High-quality randomised controlled trials (RCTs) needed. Objective study...

10.1183/23120541.00897-2023 article EN cc-by-nc ERJ Open Research 2024-03-01

Abstract Purpose of Study To explore the experiences, patient interactions and knowledge regarding use cannabis as a medicine in New Zealand doctors an oncology setting. Design An observational cross-sectional survey undertaken between November 2019 January 2020 across four secondary-care hospital departments within (Auckland, Wellington, Christchurch Dunedin). Participants were convenience sample doctors; consultants, registrars, medical officers special status house surgeons working...

10.1136/postgradmedj-2020-139013 article EN Postgraduate Medical Journal 2020-11-20

Background In randomised controlled trials, as-needed inhaled corticosteroid (ICS)-formoterol reliever therapy reduces severe exacerbation risk compared with maintenance ICS plus short-acting beta 2 -agonist (SABA) in adolescent and adult asthma, but results slightly worse control of asthma symptoms, as measured by mean Asthma Control Questionnaire-5 (ACQ-5) score. Objective To assess the levels changes for budesonide–formoterol versus budesonide SABA post hoc analyses from Novel START...

10.1136/bmjresp-2022-001271 article EN cc-by-nc BMJ Open Respiratory Research 2022-08-01

Evidence based practice uses up to date information inform decisions on the management of an individual’s health problem.1 To most, this would seem a basic premise for medical practice, but there has been backlash against growth evidence medicine movement.2 Some insist that their always and responsible clinicians keep by reading selected journals. But sheer volume modern publications is such it impossible even experts in area be aware all relevant literature subject. We are inevitably...

10.1136/bjo.82.6.597 article EN British Journal of Ophthalmology 1998-06-01

Drawing has played a key role in the development and dissemination of Medicine Surgery, such as to share anatomy, pathology, techniques for clinical interventions. While many visuals used medicine today are created by medical illustration professionals, imaging photography radiography; doctors continue draw routinely their practice. This is known be valued patients, example when making informed decisions about care. We surveyed New Zealand online regarding use drawing explore prevalence this...

10.1080/17453054.2022.2106197 article EN Journal of Visual Communication in Medicine 2022-08-09

<b>Background:</b> A noninvasive ventilation (NIV) mask has been designed to deliver NIV with expiratory washout (EW) improve efficacy of via clearing carbon dioxide (CO2) from anatomical deadspace. This study compared the performance and comfort this EW a standard during therapy. <b>Methods:</b> Sixteen participants severe stable chronic obstructive pulmonary disease (COPD) completed crossover study. Participants attended single visit receive, in random order, two 60-minute interventions...

10.1183/13993003.congress-2023.oa3187 article EN 2023-09-09
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