Australian Anaesthetists Research Articles

Does it apply to me: Using Relational Frame Theory to examine anaesthetists' approach to safety behaviour and human factors

Healthcare must provide safe and effective treatment while being cost-effective and ethical in its delivery. Anaesthesia is particularly prone to production pressure, which can lead to compromises in patient safety through risky decision-making. Australian anaesthetists (N=192), trainees, and specialists were asked to complete an electronic survey asking whether they would proceed with surgery in 11 clinical elective scenarios involving a violation of a standard or practice guideline. They were also asked how confident they were in their decisions and provided an opportunity to explain. Across all scenarios, anaesthetists would have proceeded ranging from 8.3% to 89.6. The likelihood to proceed and confidence in the decision in some scenarios was influenced by the decision made, gender, age, and level of expertise. Although not originally designed to investigate rule-governed behaviour using Relational Framework Theory, we found evidence of the influence of plys, tracks and augments, in the explanations which participants provided. Relational Framework Theory may provide insights into individual beliefs, values, motivators, and the influence of culture-behavioural systems in anaesthetists attitudes towards safety practices and human factors.

Smartphone use and perceptions of their benefit and detriment within Australian anaesthetic practice.

The primary aim of this study was to evaluate the perceptions of Australian anaesthetists in relation to smartphone use within anaesthetic practice. In particular, we aimed to assess the frequency of smartphone use, the types and number of smartphone applications used, how reliant anaesthetists perceive themselves to be on smartphones and whether they perceive them to be a factor that aids or distracts from their practice. Secondly, we assessed whether there is an association between the type, frequency, reliance and perceptions of smartphone use and the years of experience as an anaesthetist. A 24-item questionnaire addressing these questions was created and distributed to an email list of credentialled anaesthetists in Melbourne, Australia. A total of 113 consultant anaesthetists who practise at 55 hospitals in Melbourne completed the questionnaire. Our results suggest that the majority of anaesthetists are using smartphones regularly in their practice. About 74% of respondents agreed that they rely on their smartphone for their work. We found that respondents were more likely to rely on smartphones and consider them to aid patient safety than to consider them a distraction. This phenomenon was particularly apparent in those who had been a consultant anaesthetist for less than three years. Furthermore, those who had been a consultant anaesthetist for less than three years were more likely to have more smartphone apps relating to anaesthetics, use them more often and rely on them to a greater degree. Our results highlight the ubiquitous and perceived useful nature of smartphones in anaesthetic practice.

The intraoperative use of non-opioid adjuvant analgesic agents: a survey of anaesthetists in Australia and New Zealand

BackgroundOpioids have long been the mainstay of drugs used for intra-operative analgesia. Due to their well-known short and long term side effects, the use of non-opioid analgesics has often been encouraged to decrease the dose of opioid required and minimise these side effects. The trends in using non-opioid adjuvants among Australian Anaesthetists have not been examined before. This study has attempted to determine the use of non-opioid analgesics as part of an opioid sparing practice among anaesthetists across Australia and New Zealand.MethodsA survey was distributed to 985 anaesthetists in Australia and New Zealand. The questions focused on frequency of use of different adjuvants and any reasons for not using individual agents. The agents surveyed were paracetamol, dexamethasone, non-steroidal anti-inflammatory agents (NSAIDs), tramadol, ketamine, anticonvulsants, intravenous lidocaine, systemic alpha 2 agonists, magnesium sulphate, and beta blockers. Descriptive statistics were used and data are expressed as a percentage of response for each drug.ResultsThe response rate was 33.4%. Paracetamol was the most frequently used; with 72% of the respondents describing frequent usage (defined as usage above 70% of the time); followed by parecoxib (42% reported frequent usage) and dexamethasone (35% reported frequent usage). Other adjuvants were used much less commonly, with anaesthetists reporting their frequent usage at less than 10%. The majority of respondents suggested that they would never consider dexmedetomidine, magnesium, esmolol, pregabalin or gabapentin. Perceived disincentives for the use of analgesic adjuvants varied. The main concerns were side effects, lack of evidence for benefit, and anaesthetists’ experience. The latter two were the major factors for magnesium, dexmedetomidine and esmolol.ConclusionThe uptake of tramadol, lidocaine and magnesium amongst respondents from anaesthetists in Australia and New Zealand was poor. Gabapentin, pregabalin, dexmedetomidine and esmolol use was relatively rare. Most anaesthetists need substantial evidence before introducing a non-opioid adjuvant into their routine practice. Future trials should focus on assessing the opioid sparing benefits and relative risk of using individual non-opioid adjuvants in the perioperative period for specific procedures and patient populations.

Survey of anaesthetists' practice of sedation for gastrointestinal endoscopy.

We conducted a survey of Australian specialist anaesthetists about their practice of sedation for elective and emergency gastroscopy, endoscopic retrograde cholangiopancreatography (ERCP), and colonoscopy. A 24-item survey was emailed to 1,000 anaesthetists in August 2015. Responses were received from 409 anaesthetists (response rate=41%) with responses from 395 anaesthetists analysed. Pulse oximetry and oxygen administration were routine for all procedures for all respondents. Blood pressure was routinely measured by most respondents during gastroscopy (elective=88%; emergency=97%), ERCP (elective=99%; emergency=99%) and colonoscopy (elective=91%; emergency=98%). The airway was routinely managed with jaw lift or oral or nasal airway by 99%, 76% and 97% of respondents during gastroscopy, ERCP and colonoscopy, whereas in emergency procedures endotracheal intubation was routine in 49%, 64% and 17% of procedures. Propofol was routinely administered by 99% of respondents for gastroscopy and 100% of respondents for ERCP and colonoscopy. A maximum depth of sedation in which patients were unresponsive to painful stimulation was targeted by the majority of respondents for all procedures except for elective gastroscopy. These results may be used to facilitate comparison of practice in Australia and overseas, and give an indication of compliance by Australian anaesthetists with the relevant Australian and New Zealand College of Anaesthetists guideline.

Revalidation: implications for Australian anaesthetists.

In early 2015, the Medical Board of Australia commissioned research into international revalidation models and what might be applicable for Australia. This review examines the implications for Australian anaesthetists. What problem is revalidation seeking to address? What is happening in similar countries? Is there an issue with Australian anaesthetists' performance? Isn't continuing professional development enough? Could the Medical Board target known high-risk doctors? What is the evidence for the benefit of revalidation? How is and how should the profession be involved? Revalidation has been introduced in other developed countries. It commonly involves continuing professional development, feedback from colleagues, co-workers and patients, clinical audit and peer review. Although its evidence base is limited, the General Medical Council in the United Kingdom is evaluating its revalidation system, which should provide useful guidance for other countries. Australian anaesthetists and their professional organisations must remain informed about, and engaged in, the national debate about revalidation, to ensure that any new process is workable for Australian anaesthesia practice.

The Anesthetic Crisis Manual - North American Edition

David C. Borshoff (author). Geoffrey Lighthall (editor). Leeuwin Press Pty Ltd; website: http://theacm.com.au/ product/the-acm-international-edition-us/. Supported by the Australian Society of Anaesthetists – Endorsed by the European Society of Anaesthesiology The Anesthetic Crisis Manual is intended to serve as a ‘‘cognitive aid’’ and ‘‘quick reference handbook’’ for anesthetic crises commonly encountered in the operating room (OR). Written by David Borshoff, an Australian anaesthetist, supported by the Australian Society of Anaesthetists, and endorsed by the European Society of Anaesthesiology for its crisis checklists, the Manual has been adapted for North American practitioners with help from the Editor, Geoffrey Lighthall of Stanford University School of Medicine. The Manual bears a number of similarities to aviation quick reference handbooks (QRHs) – perhaps not surprising considering the author is also a general aviation (private) pilot. An example of this similarity is an initial suggestion to have an assistant ‘‘read and communicate the directive’’. Also, like other QRHs, and given its intended use in the OR, the Manual has been robustly constructed. The pages, which apparently are waterproof, tear resistant, and easy to clean, feel thick and durable. Furthermore, the Manual’s spiral binding has been helpfully fitted with an attachment to allow easy tethering to an anesthesia machine or crash cart. The Manual is organized into two parts. The first, the heart of the Manual, is a crisis management section which lays out management protocols in checklist format for 23 intraoperative emergencies. At least nine draw on established guidelines addressing issues such as cardiac arrest, malignant hyperthermia, and local anesthetic systemic toxicity (LAST). A sequence of colour-coded tabs directs the reader to the appropriate well-described and colour-matched protocol. From a human factors standpoint, the colour sequence appears to have only esthetic and not functional use, with the sequence for tabs 1-14 repeated for tabs 15-23. Each page is clearly laid out with a series of easy-toread numbered points that take the reader systematically through critical steps in the immediate management of a problem. The focus on describing management clearly and concisely means that some details are lost; however, on each facing page, there is additional information, such as salient points related to the problem, doses of medications, and further management options. Nevertheless, it is worth pointing out that the neonatal resuscitation checklist appears to be modelled after the UK guidelines, which differ slightly from the current recommendations of the North American Neonatal Resuscitation Program. Also, there is an error in the Intralipid dose in the LAST protocol (quoted as 1.5 mg kg instead of the correct 1.5 mL kg). The author has posted a correction on his website (http:// theacm.com.au/alerts/), but this correction is also incorrect. Four tabs are dedicated to airway emergencies: difficult mask ventilation, unanticipated difficult intubation, the dreaded ‘‘can’t intubate can’t ventilate’’, and laryngospasm. For these, the author’s recommendations reflect the UK Difficult Airway Society guidelines, which differ slightly from the 2013 Canadian Airway Focus Group recommendations. Nonetheless, the information provided is succinct while emphasizing appropriate time management and highlighting that the points provided are D. Finegan, MD J. M. Davies, MD (&) Department of Anesthesia, University of Calgary, Calgary, AB, Canada e-mail: jdavies@ucalgary.ca

Implications for Australian Anaesthetists and Proceduralists of a Recent Court Decision regarding Informed Consent and Patient Positioning

This article discusses the medicolegal implications of a recent judgment in relation to a patient who suffered significant morbidity as a result of patient positioning during an operative procedure. The patient developed an unexpected serious complication following surgery, in the context of a preoperative consent that did not cover every potential complication or contingency. The court held that the failure to warn of a particular risk that would have prevented the patient from undergoing a procedure but did not occur will not necessarily result in a finding of negligence in relation to another risk where the harm did occur. This finding is well aligned to current clinical practice and at the same time does not abrogate the practitioner's duty to provide a comprehensive list of possible complications during the consent process for any proceduralist. In the context of a procedure requiring anaesthesia, the importance of communication and understanding between the anaesthetist and proceduralist as to which aspects of the consent process are undertaken by whom, and to ensure the process is done comprehensively, is of great importance and is indirectly highlighted by this recent judgment.

Mental Health and Welfare in Australian Anaesthetists

This survey was designed to evaluate the factors affecting mental health and welfare in Australian anaesthetists and to investigate current sources of support. An electronic survey was sent to 500 randomly selected Fellows and trainees of the Australian and New Zealand College of Anaesthetists. Questions were related to: anxiety, stress, depression, substance misuse, self-medication, suicide, reporting illness, and help-seeking. Current psychological wellbeing was assessed using the Kessler Psychological Distress Scale (K10). A total of 191 completed surveys were received (a response rate of 38%): 26% had attended their general practitioner for mental health issues, of whom half had been diagnosed with a mental illness; 7% of all respondents were currently prescribed medication for this; 25% had previously self-prescribed psychoactive medication; 17% admitted to using alcohol to deal with stress, anxiety or depression; and 8% responded that mental illness had at some point impaired clinical care. Sixteen percent of all respondents reported previous suicidal ideation. Despite a low response rate, and the possibility of responder bias, the mental health of Australian anaesthetists would appear to be subject to common and persistent risk factors, many of which are well described in previous studies. We identify general practitioners as particularly valuable in targeting initiatives for improvements in mental health and welfare. The significant prevalence of suicidal ideation and reluctance to approach senior colleagues with concerns about mental health or welfare issues are specific causes for concern and suggest that further investigation, education and a potential review of support networks is required.

Arthur Guedel's Laryngeal Plug

The laryngeal plug is a little-known device developed by Arthur E. Guedel in the 1930s. The device was an alternative to the inflatable cuff used on tracheal tubes. Guedel did not publish a description of the laryngeal plug and the most detailed description of it was published by Gilbert Troup, an Australian anaesthetist.

The Influence of Objective Prognostic Information on the Likelihood of Informed Consent for Decompressive Craniectomy: A Study of Australian Anaesthetists

The aim of this study was to assess the influence of detailed prognostic information on the likelihood of informed consent for decompressive craniectomy for severe traumatic brain injury. The study was a simulation exercise, asking anaesthetists to give opinions as if they themselves were the injured party. Anaesthetists were chosen as they represent a distinct group likely to be familiar with the procedure and the decision-making process, but not necessarily aware of the longer-term outcomes. A two-part structured interview was used. Seventy-five anaesthetists were shown three cases of differing severity of traumatic brain injury. A visual analogue scale (1 to 10) was used to assess the strengths of their opinion. Initially they were asked their opinion with no predictive outcome data. They were then shown the prediction of an unfavourable outcome (Glasgow Outcome Scale severely disabled, vegetative state or dead) and the observed outcome at 18-month follow-up from a cohort of 147 patients (who had had a decompressive craniectomy for severe traumatic brain injury in Perth, Western Australia between the years 2004 and 2008). The opinions of the participants before and after seeing the prediction outcome data were compared. The participants' preferences to consent to the procedure changed after being informed of the predicted risks of unfavourable outcomes (P values < 0.01). The changes in attitude appeared to be independent of age group, amount of experience in caring for similar patients and religious background. These findings suggest that access to objective information on risks of unfavourable outcomes may influence opinions in relation to consent for decompressive craniectomy for traumatic brain injury.

‘The workman is worthy of his hire’* What is an anaesthetist worth in 2010?

‘The workman is worthy of his hire’* What is an anaesthetist worth in 2010?

From Collection to Museum: The Development of the Geoffrey Kaye Museum of Anaesthetic History

Located at the Australian and New Zealand College of Anaesthetists (ANZCA) headquarters in Melbourne, Victoria, this internationally significant collection was founded in 1935 by renowned Australian anaesthetist Dr Geoffrey Kaye (1903 to 1986). Although it has always been referred to as a museum, it lacked the necessary management structure and infrastructure to meet museum standards. In March 2003, the first full-time professionally trained Museum Curator Ms Elizabeth Triarico, was employed by ANZCA to work with the Honorary Curator Dr Rod Westhorpe, and the Honorary Assistant Curator; Dr Christine Ball, to build on past achievements and to develop the collection into an accessible and relevant modern museum. Ms Triarico has extensive museum management experience with emphasis on management of major projects, collection management, strategic planning, marketing, interpretation and exhibition development. This paper outlines the management issues and innovative strategies involved in developing this important collection into a professionally managed museum based on best practice standards. It illustrates the benefits of introducing a clear vision and an agreed longterm management plan based on Museums Australia (Victoria) Museum Accreditation Program guidelines.

Australian Anaesthetists’ Practice of Sedation for Gastrointestinal Endoscopy in Adult Patients

A wide spectrum of practice in sedation for gastrointestinal endoscopy in adult patients is documented overseas, but a current profile of the practice of Australian anaesthetists is unavailable. We therefore surveyed 200 Fellows of the Australian and New Zealand College of Anaesthetists on the choice of drugs and monitoring, use of analgesic throat spray and prophylactic intravenous fluids and the depth of sedation for gastrointestinal endoscopy. Our response rate was 57% and endoscopy formed a significant part of most respondents' practices. Propofol was used for almost all procedures, in combination with midazolam alone (14%), fentanyl alone (6%), midazolam and fentanyl (61%), another drug (15%) or no adjuvant (4%). The majority of patients received prophylactic intravenous fluids for endoscopic retrograde cholangio-pancreatography (83%) and colonoscopy (64%), but not for gastroscopy (20%). All patients received supplemental oxygen and monitoring with pulse oximetry. However over 20% of patients having gastroscopy or colonoscopy did not have non-invasive blood pressure monitoring. A maximum depth of sedation during which the patient was unresponsive to painful stimulation (commensurate with general anaesthesia) was targeted by 54% of respondents. Significant variations exist in the practice of sedation and monitoring for endoscopy in adult patients by anaesthetists in Australia.

The Inventors

Amongst Australian anaesthetists there have been many whose ingenuity and mechanical knowledge produced ingenious devices. Lidwill and Geoffrey Kaye come immediately to mind, and their contributions are well-described elsewhere. In this paper, two inventions with contrasting fates are described: the Grant Humidifier and the Komesaroff single-use analgesia device. Graham Grant's invention addressed the problem of rain-out in a most ingenious manner The device was compact, efficient and deserved greater commercial success, but a similar apparatus developed in New Zealand was better supported and captured most of the market. Grant has a degree in engineering, acquired before his medical degree, but David Komesaroff spent only a year in the Engineering Faculty before transferring to Medicine. Nevertheless, he has remained interested and in touch with technical matters, and has a number of other devices to his credit. Mention is briefly made of others: Stokes (of the suction bullet), Bill Cole (an early volatile specific vaporiser), Fisk (the paediatric ventilator) and Noel Cass (the Cass needle) These achievements are by no means the end of the road. Already an Australian-designed single-use laryngoscope is being manufactured and launched on both the national and international markets.

Anaesthetic Adverse Incident Reports: An Australian Study of 1,231 Outcomes

While there have been previous studies looking at patterns of litigation against anaesthetists overseas, there is little reported on the trends in Australia. This study was performed to ascertain current reporting rates of anaesthetic incidents, and from what areas these reports arise. Over the five years spanning January 1999 until December 2003, 1,231 adverse anaesthetic outcomes were reported to United Medical Protection by Australian anaesthetists. As in other studies, damage relating to airway instrumentation was the most frequently reported, comprising 261 incidents (21.8%). Complications related to epidural blockade were the next most common, accounting for 182 outcomes (15.2%). Other common areas generating incident reports included nerve injuries, respiratory complications, drug side-effects and death. To date 147 claims (12.3%) have arisen from these incident reports. Knowledge of these areas of risk should translate into more effective risk management with reduction in claims and adverse patient outcomes.

Gilbert Brown: A Prominent Australian Anaesthetist

In 1930 Gilbert Brown was prominent in the South Australian Branch of the British Medical Association and instrumental in the establishment of a Section of Anaesthetics. He was elected the first President of this scientifically and academically orientated section. He became the first President of the Australian Society of Anaesthetists from 1934-1939. He is commemorated by the Society in the Gilbert Brown Award for major contribution to a subject or event of the Society. The Australian and New Zealand College of Anaesthetists awards the Gilbert Brown Prize to the contributor judged to have made the best contribution at each Annual Scientific Meeting.

Use of the Internet for patient care: a nationwide survey of Australian anaesthetists.

The internet is an increasingly important source of information for anaesthetists. We sought to determine the extent and patterns of internet use among Australian anaesthetists, and to assess its effect on clinical decision-making. A postal survey of all Australian Fellows of the Australian and New Zealand College of Anaesthetists (n = 2344) was performed. The response rate was 48% (n = 1109) and 1066 responses were analysed. Ninety-seven per cent of respondents, much higher than the national average of 72%, had internet access at work or home. The majority used the internet at least once a month for patient care, and over 50% had made clinical decisions influenced by information found on the internet. In contrast, less than 20% had had any training in its use. In terms of access, rural Australia did not appear to be disadvantaged.

Career choice influences in Australian anaesthetists.

All female members and a randomly selected group of male members of the Australian Society of Anaesthetists (n = 488) were surveyed by questionnaire as part of a broader study of gender issues in anaesthesia. This paper reports on reasons for career choice and the importance of role models. Responses were received from 199 women and 98 men (60.9% of those surveyed), representing all States and one Territory. Most males (95.9%) and a majority of females (55.7%) worked full-time. Reasons for career choice varied with gender, with a significantly greater proportion of women (39.7%) than men (8.7%) choosing anaesthesia because of controllable hours, particularly the ability to work part-time. Experiences in anaesthesia during internship and residency were important for 19.1% of women and 14.1% of men, although very few mentioned undergraduate exposure. Other important factors in career choice were the application of physiology and pharmacology in patient care, practical and procedural aspects of practice, and chance. A majority of women (56%) and men (55%) named specific role models who were influential and encouraging in their choice. These results are similar to those of other studies.

Variable cytochrome P450 2D6 expression and metabolism of codeine and other opioid prodrugs: implications for the Australian anaesthetist.

Codeine is a popular opioid prodrug dependent on the activity of the specific cytochrome P450 enzyme 2D6 (CYP2D6). This enzyme catalyses the production of the potent analgesic metabolite morphine, but genetic studies have demonstrated that individuals from different ethnic groups exhibit considerable variability in the functional capacities of their expressed CYP2D6 enzymes, and pharmacological studies have shown many commonly prescribed drugs can reduce the action of CYP2D6 enzymes. These findings have significant clinical implications for the rational prescription of effective analgesia, especially in a multicultural country like Australia.

Personality profiles of Australian anaesthetists.

Identification of personality traits in anaesthetists has potential implications for selection of trainees, assessment of coping strategies during times of stress and may have a role in the analysis of critical incidents. A 24 question postal questionnaire based on the Cattell 16PF inventory was sent to specialist anaesthetists in Australia. One hundred and sixty-seven replies were received (33% response rate). Personality traits did not differ when the anaesthetists were grouped for age, number of years qualified and country of qualification. City practitioners rated themselves more inquisitive than country practitioners did (P = 0.052). Female anaesthetists self-reported they were calm (P = 0.02), patient (P = 0.02) and tolerant (P = 0.02) more often than their male counterparts, whilst more males reported themselves as highly conscientious (P = 0.01). Although some traits were consistent, personality profiles showed significant heterogeneity. Further examination of how personality and coping mechanisms interact may be central to the management of stress and critical incident generation.