Michael M Dinh
University of Sydney
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Featured researches published by Michael M Dinh.
Injury-international Journal of The Care of The Injured | 2010
Trudi Davis; Michael M Dinh; Sue Roncal; Christopher M. Byrne; Jeffrey Petchell; Elizabeth Leonard; Amanda Stack
OBJECTIVE To evaluate a two-tiered trauma activation protocol in a major trauma referral hospital in Australia. METHODS A prospective study performed over a 12-month period of all consecutive trauma activations in a major trauma referral hospital. The triage tool assigned patients into two tiers of trauma activation. The full trauma activation was initiated where physiological or anatomical criteria were present. These patients were assessed by a multispecialty trauma team. A consult trauma activation was initiated where only mechanism of injury criteria was present. These patients were assessed by the Emergency Department Registrar and Surgical Registrar. The primary endpoint was major trauma outcome defined as either injury severity score (ISS) greater than 15, requirement for High Dependency Unit or Intensive Care Unit (HDU/ICU) admission, need for urgent operative intervention, or in hospital mortality. RESULTS Of 1144 trauma activations, 468 (41%) were full trauma and 676 (59%) were consult trauma activations. The full trauma activation group had a significantly higher proportion of the major trauma outcome (34% vs. 5%, p<0.01) and all 18 patients (2%) who died were in the full trauma activation group. Sensitivity of the triage tool for the major trauma outcome was 83%, specificity was 68%, undertriage was 3% and overtriage was 27%. CONCLUSIONS The two-tiered trauma activation protocol is effective in identifying patients with major trauma from those with minor trauma. There were no deaths in undertriaged patients.
Postgraduate Medical Journal | 2015
Nishmi Gunasingam; Kharis Burns; James Edwards; Michael M Dinh; Merrilyn Walton
Background Internship and residency are difficult times with novice practitioners facing new challenges and stressors. Junior doctors may experience burnout, a syndrome that encompasses three dimensions: emotional exhaustion, depersonalisation and reduced personal accomplishment. While there is some existing literature on the prevalence of burnout in junior doctors, there are few studies on interventional strategies. Aims This study aimed to examine the prevalence of burnout in a cohort of junior doctors and whether debriefing sessions reduced levels of burnout. Methods A prospective randomised controlled study of a convenience sample of postgraduate year 1 doctors in a single hospital was undertaken during a rotation term in 2011. All participants completed a questionnaire using a validated tool, the Maslach Burnout Inventory, to determine the prevalence of burnout. They were then randomly assigned to a group who were to receive four debriefing sessions over 2 months, or, to the control group, who had no debriefing sessions. Quantitative and qualitative analyses were conducted. Results Thirty-one postgraduate year 1 doctors participated in the study, with 13 being assigned to the group receiving debriefing sessions and 18 assigned to the control group. At baseline, 21/31 (68%) participants displayed evidence of burnout in at least one domain as measured by the Maslach Burnout Inventory. Burnout was significantly higher in women. There was no significant difference in burnout scores with debriefing. The intervention was well received with 11/18 (61%) suggesting they would recommend the strategy to future junior doctors and 16/18 (89%) found that the sessions were a source of emotional and social support. Conclusions Burnout is prevalent among postgraduate year 1 doctors, and they value the emotional and social support from attending debriefing sessions. A larger study is required to determine if debriefing can reduce the incidence of burnout in junior doctors.
Emergency Medicine Journal | 2013
Michael M Dinh; Nicholas Enright; Andrew Walker; Ahilan Parameswaran; Matthew Chu
Objectives To describe the relationship between waiting time and patient satisfaction, and to determine predictors of overall care rating in an emergency department (ED) fast-track setting. Methods A convenience sample of patients triaged to a fast-track unit were surveyed. Patient satisfaction was scored using a validated survey instrument, as well as a single overall care rating (poor to excellent). Median satisfaction scores were compared between each incremental hour of waiting time. Bivariate analysis was conducted between those who waited 1 h or less, and those who waited longer. Ordered logistic regression was used to determine predictors of improved overall care rating. Results 236 patients completed surveys (response rate of 74%). Of these, 84% rated their care as either very good or excellent. There was a linear decrease in median satisfaction scores for each incremental hour of waiting time associated with half the odds of higher overall care rating after adjusting for presenting problem type, triage category, and treating clinician type (OR 0.53 95% CI 0.37 to 0.75 p<0.001). English language (OR 2.43 95% CI 1.33 to 4.42 p=0.004) and initial consultation by a nurse practitioner (NP) (OR 1.81 95% CI 1.03 to 3.31 p=0.038) were also found to be significant predictors of improved overall care rating. Conclusions Waiting time was found to be highly predictive of patient satisfaction in an emergency fast-track unit with English language and NPs also associated with improved overall care rating. Future measures to improve patient satisfaction in fast-track units should focus on these factors.
Emergency Medicine Australasia | 2009
Raymond Kwok; Michael M Dinh; David Dinh; Matthew Chu
Objective: The authors previously developed a dynamic and integrated electronic decision support system called ACAFE (Asthma Clinical Assessment Form and Electronic decision support). The objective of this present study was to evaluate the effectiveness of this system on asthma management and documentation in an ED.
Emergency Medicine Australasia | 2015
Nerida Bell; Claire L Hutchinson; Timothy Green; Eileen Rogan; Kendall J Bein; Michael M Dinh
The aim of the study was to determine if oxygen delivered through humidified high flow nasal cannulae (HHFNC) reduced the need for escalation in ventilation management and work of breathing in the ED patients presenting with acute undifferentiated shortness of breath compared with standard oxygen therapy.
Emergency Medicine Australasia | 2013
Kai Hsun Hsiao; Michael M Dinh; Kylie P McNamara; Kendall J Bein; Susan Roncal; Charbel Saade; Richard Waugh; Kee Fung Chi
To describe the use of whole‐body computed tomography (WBCT) at this Major Trauma Centre; to determine independent predictors of multi‐region injury; and to evaluate the accuracy of the decision to perform WBCT in detecting multi‐region injury.
Injury-international Journal of The Care of The Injured | 2014
Jana Vitesnikova; Michael M Dinh; Elizabeth Leonard; Soufiane Boufous; Katherine M. Conigrave
INTRODUCTION Alcohol use is an important contributor to injuries. Simple bedside tools to identify trauma patients with potentially harmful drinking may assist in brief intervention efforts in clinical practice. The objective of the study was to determine and compare the accuracy of alcohol use disorders identification test (AUDIT) and an abbreviated version of this test, in the detection of hazardous drinking. METHODS A cross-sectional study of a convenience sample of admitted trauma patients at a single Australian major trauma centre. Eligible patients completed the AUDIT. AUDIT survey responses were scored in two ways, using the full form scale and secondly an abbreviated (AUDIT C) scale which uses only the first 3 questions. AUDIT and AUDIT-C scores were then evaluated with respect to the primary study measure; the detection of hazardous alcohol consumption based on a full alcohol consumption history. Sensitivities for each relevant score were calculated and receiver operator characteristic (ROC) curve analysis was used to determine test accuracy. RESULTS During the study period, 523 trauma admissions were identified and of these 146 (28%) were screened. The optimum cut off scores for AUDIT and AUDIT-C were 8 and 5 respectively corresponding to sensitivities of 88% and 91% and both tests had excellent overall accuracy for the detection of hazardous alcohol consumption. There was no significant difference between AUDIT-C and AUDIT performance (p=0.395) (AUDIT-C AUROC 0.96 95%CI 0.93, 0.99). CONCLUSION AUDIT-C appears to be a potentially useful screening tool for use trauma centres, but that further research with larger samples is required.
Anz Journal of Surgery | 2013
Michael M Dinh; Susan Roncal; Christopher M. Byrne; Jeffrey Petchell
Elderly patients with major trauma are an increasingly important public health concern. The objective of the study was to describe the long term trend in patients aged 65 years and older with major trauma.
Emergency Medicine Australasia | 2010
Guruprasad Nagaraj; Matthew Chu; Michael M Dinh
Objective: To determine the current availability, uses and credentialing processes of emergency clinician performed ultrasound (EDUS) in Australian ED.
Emergency Medicine Australasia | 2016
Michael M Dinh; Saartje Berendsen Russell; Kendall J Bein; Dane Chalkley; David Muscatello; Richard Paoloni; Rebecca Ivers
This study aims to describe the general characteristics and data definitions used in a population‐based data set of ED presentations in New South Wales (NSW), used to form the basis of future‐trend analyses.