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Dive into the research topics where Daryl R. Cheng is active.

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Featured researches published by Daryl R. Cheng.


Psychiatry Research-neuroimaging | 2013

Stigma and perception of psychological distress and depression in Australian-trained medical students: Results from an inter-state medical school survey

Daryl R. Cheng; Flora Poon; Tran T. Nguyen; Richard J. Woodman; Jun Parker

Stigmatisation towards depression has previously been reported amongst medical students from a variety of backgrounds. This study explored personal and perceived stigmas associated with depression, and their relationship with demographics, knowledge of depression, levels of personal stress and history of medical illness amongst Australian-trained medical students. A cross-sectional survey was undertaken amongst students enroled June-to-August 2009 across four Australian medical schools. In total, 1010 students completed the survey, a response rate of 29.6%. Approximately 25% of students reported a past history of depression. Higher stress (K-10 scores) was reported by females and those with a past history of depression. On a scale of 0-to-5, the mean (±S.D.) personal and perceived stigma depression scores were 1.83±1.49 and 4.05±1.42 respectively. In multivariate analysis, higher perceived stigma and K-10 scores, a past history of anxiety and Year 3 of medical school indicated higher personal stigma scores. Perceived stigma was positively associated with K-10 scores, personal stigma scores, and a Caucasian background. Our findings suggest a high level of personal and particularly perceived stigma associated with depression amongst medical students, especially those displaying higher levels of stress. Adequate support and screening for psychological stress may de-stigmatise depression and improve mental health amongst future Australian doctors.


Vaccine | 2015

Pediatric anaphylactic adverse events following immunization in Victoria, Australia from 2007 to 2013

Daryl R. Cheng; Kirsten P. Perrett; Sharon Choo; Margie Danchin; Jim Buttery; Nigel W. Crawford

BACKGROUND Anaphylaxis is a rare life-threatening adverse event following immunization (AEFI). Variability in presentation can make differentiation between anaphylaxis and other AEFI difficult. This study summarizes pediatric anaphylaxis AEFI reported to an Australian state-based passive surveillance system. METHODS All suspected and reported pediatric (<18 years) anaphylaxis AEFI notified to SAEFVIC (Surveillance of Adverse Events Following Vaccination In the Community) Melbourne, Australia, between May 2007 to May 2013 were analyzed. Clinical descriptions of the AEFI, using the internationally recognized Brighton Collaboration case definition (BCCD) and final outcome were documented. RESULTS 93% (25/27) of AEFI classified as anaphylaxis met BCCD criteria, with 36% (9/25), assessed as the highest level of diagnostic certainty (Level 1). Median age was 4.7 years (range 0.3-16.2); 48% of cases were male. The vaccine antigens administered included: diphtheria, tetanus, acellular pertussis (DTaP) alone or in combination vaccines containing other antigens in 11 of 25 cases (44%); and live attenuated measles mumps rubella (MMR) vaccine for six (five also had other vaccines concomitantly administered). The estimated incidence rate of anaphylaxis for DTaP vaccines was 0.36 cases per 100,000 doses, and 1.25 per 100,000 doses for MMR vaccines. The majority of cases had rapid onset, but in 24% (6/25) of cases, first symptoms of anaphylaxis developed ≥30 min after immunization. In 60% (15/25) of cases, symptoms resolved ≤60 min of presentation. Intramuscular adrenaline was administered in 90% (18/25) of cases. All cases made a full recovery with no sequelae identified. CONCLUSION This comprehensive case series of pediatric anaphylaxis as an AEFI identified that diagnostic criteria are useful when applied to a passive vaccine surveillance system when adequate clinical information is available. Anaphylaxis as an AEFI is rare and usually begins within 30 min of vaccination. However, healthcare professionals and vaccinees/parents should be aware that onset of anaphylaxis can be delayed beyond 30 min following immunization and that medical attention should be sought promptly if anaphylaxis is suspected.


Expert Review of Vaccines | 2016

Rituximab and protection from vaccine preventable diseases: applying the evidence to pediatric patients

Daryl R. Cheng; Rebecca Barton; Anthea Greenway; Nigel W. Crawford

ABSTRACT Introduction: This article analyses and highlights the challenge of immunization and preventing vaccine preventable diseases in pediatric patients on rituximab. Rituximab is a chimeric anti-CD 20 monoclonal antibody that is an immunosuppressant affecting both cellular and humoral immunity. Children and adolescents on rituximab are at increased risk of infection and vaccine preventable diseases, and require additional strategies to optimize and maximize their protection against such illnesses. Areas covered: This article provides a comprehensive MEDLINE and Pubmed review of existing literature regarding vaccine immunogenicity and safety in patients on rituximab, and assists in providing an evidence base to develop immunization guidelines. Of particular note, the use of live-attenuated vaccines and optimum timing of vaccines post rituximab is considered and discussed. Expert commentary: The increasing use of rituximab in a variety of novel areas within pediatrics must be accompanied by informed discussion around mitigating the risks. These include immunosuppression, and potential susceptibility to infection. Optimizing vaccine status by establishing adequate antibody titers prior to commencement remains the best preventative strategy.


BMC Infectious Diseases | 2012

Recurrent 6th nerve palsy in a child following different live attenuated vaccines: case report

Daryl R. Cheng; Nigel W. Crawford; Michael Hayman; Christopher Buckley; Jim Buttery

BackgroundRecurrent benign 6th nerve palsy in the paediatric age group is uncommon, but has been described following viral and bacterial infections. It has also been temporally associated with immunization, but has not been previously described following two different live attenuated vaccines.Case presentationA case is presented of a 12 month old Caucasian boy with recurrent benign 6th nerve palsy following measles-mumps-rubella and varicella vaccines, given on separate occasions with complete recovery following each episode. No alternate underlying etiology was identified despite extensive investigations and review.ConclusionsThe majority of benign 6th nerve palsies do not have a sinister cause and have an excellent prognosis, with recovery expected in most cases. The exact pathophysiology is unknown, although hypotheses including autoimmune mechanisms and direct viral invasion could explain the pathophysiology behind immunization related nerve palsies. It is important to rule out other aetiologies with thorough history, physical examination and investigations. There is limited information in the literature regarding the safety of a repeat dose of a live vaccine in this setting. Future immunizations should be considered on a case-by-case basis.


Medical Teacher | 2014

Palliative care in Australian medical student education.

Daryl R. Cheng; A. Teh

Greater emphasis needs to be placed on medical student palliative care education within the Australian arena. The development of a comprehensive, relevant and practical educational curriculum in this area during medical school is imperative in order to adequately equip the future junior medical workforce. Further development of a national palliative care curriculum as well as research comparing various teaching methods and curricula should be the priorities in the near future.


Vaccine | 2018

Immunizations under sedation at a paediatric hospital in Melbourne, Australia from 2012–2016

Daryl R. Cheng; Sonja Elia; Kirsten P. Perrett

BACKGROUND Sedation for immunizations is of particular importance in a subset of paediatric patients with anxiety disorders, needle phobia, developmental or behavioural disorders. The Royal Childrens Hospital (RCH) Melbourne offers a unique immunization under sedation service for these patients. We aimed to evaluate the number and types of patients using inpatient sedation for immunizations, distraction and sedation techniques used, and outcomes of these procedures. METHODS A medical record review was conducted on all patients who had immunization under sedation between January 2012 to December 2016 in the RCH Day Medical Unit (DMU). RESULTS A total of 139 children and adolescents had 213 vaccination encounters. More than half of the vaccination encounters involved multiple vaccines. A total of 400 vaccines were administered. One third of patients (32.3%) had multiple DMU admissions for vaccinations. The median age of patients was 13 years. There were only 10 (4.7%) failed attempts at vaccination; all due to patient non-compliance with prescribed sedation. The majority of patients (58.9%) had a diagnosis of needle phobia. Sedation was most commonly adequately achieved with inhaled nitrous oxide (54.7% sole agent). Midazolam was often used as an adjunct therapy (42.8%). Local anaesthetic cream or play therapy, were used in only 5.9% and 3.9% of patients respectively, although this may reflect poor documentation rather than actual practice. CONCLUSIONS For a subset of paediatric patients for which standard immunization procedures have failed, distraction techniques and conscious sedation enable immunizations to be given safely and effectively. Future research will develop protocols to streamline immunization procedures under sedation.


International Journal of Medical Informatics | 2017

Impact of an integrated electronic handover tool on pediatric junior medical staff (JMS) handover

Daryl R. Cheng; James Liddle; Emily Mailes; Mike South

BACKGROUND Clinical medical handover between doctors forms a critical part of the patient care process. However, with the evolution of junior medical staff (JMS) working conditions, time pressure and increasing clinical and administrative loads mean that quality clinical handover is increasingly important yet more challenging to achieve. This study evaluated the impact of a newly integrated electronic handover tool on JMS adoption and usage of the tool, as well as impacts on the quality (accuracy and redundancy) of handover data, JMS perceived workflow (time management and communication) and JMS satisfaction. FINDINGS The majority of JMS surveyed used the tool at 1 (87.0%) and 3 (67.4%) months post implementation. After the introduction of the electronic handover tool, 67.5% of users spent less than 15min updating handover data in the electronic handover tool, compared to just 6.7% prior to the introduction. 28.3% of respondents noted that there was >25% redundant data, compared to more than half (52.2%) prior to introduction of the electronic tool. Overall JMS satisfaction with their handover process was significantly higher post implementation of the integrated electronic handover report (17.4% pre, 80.4% at 1 month, 67.4% at 3 months). CONCLUSION A newly introduced integrated electronic medical record handover tool had a high uptake amongst JMS, and resulted in improvement in perceived handover efficiency, a reduction in redundant data entry and improved JMS handover satisfaction.


Emergency Medicine Australasia | 2016

Effect of a pager notification system on Australasian Triage Scale category 2 patients in a paediatric emergency department

Daryl R. Cheng; Laura E McCartney; Adam West; Simon Craig

Australasian EDs have introduced innovative processes to ensure safe and timely management of patients. Our ED introduced a dedicated pager system to provide rapid assessment of Australasian Triage Scale (ATS) category 2 patients in an attempt to expedite ED care. The present paper aims to evaluate the impact of this initiative on time to clinician, ED length of stay (LOS) and clinical outcomes in a tertiary paediatric ED.


American Journal of Infection Control | 2015

Are identity badges and lanyards in pediatrics potentially contaminated with viral pathogens

Chun Yi Ting; Daryl R. Cheng; Despina Kotsanas; Carl D. Kirkwood; Nada Bogdanovic-Sakran; Rhonda L. Stuart; Jim Buttery

Identity (ID) badges and lanyards worn by pediatric health care workers (HCWs) have been shown to be potential vectors of nosocomial bacterial infections. This cross-sectional study determined the contamination of ID badges and lanyards worn by pediatric HCWs with common respiratory and gastrointestinal viruses. The results showed that ID badges and lanyards are not significantly contaminated with common respiratory or gastrointestinal viruses and are unlikely to be a significant vector for nosocomial infection.


Acta Paediatrica | 2016

Nitric therapy in preterm infants: rationalised approach based on functional neonatal echocardiography.

Daryl R. Cheng; Stacey Peart; Kenneth Tan; Arvind Sehgal

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Jim Buttery

Boston Children's Hospital

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Mike South

Royal Children's Hospital

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Anthea Greenway

Royal Children's Hospital

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Emily Mailes

Royal Children's Hospital

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James Liddle

Royal Children's Hospital

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Margie Danchin

Royal Children's Hospital

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