Evaluation of students' clinical performance post-simulation training

INTRODUCTION

Traditionally in Australia, sonographer skills are learnt on patients in clinical practice. A four-year undergraduate-postgraduate course introduced ultrasound simulation to prepare novice sonographer students for interaction with patients. Second-year students learnt psychomotor and patient-sonographer communication skills during simulation using commercial ultrasound machines and volunteer year-group peers as standardised patients. This paper reports on the transfer of the ultrasound skills learnt in simulation to clinical practice.

METHODS

Clinical performance evaluations were completed by 94 supervisors involved in the initial clinical practice of 174 post-simulation second-year students over a two-year period (2015-2016). Student performance of each component skill, and skill category, was analysed by modelling binomial proportions with logistic regression.

RESULTS

Students demonstrated substantial transfer of learnt ultrasound skills to achieve a mean of advanced beginner competence (mean score of equal to or >3/5) in complex psychomotor and patient-sonographer communication skills, as measured one month into clinical practice. Knowledge and skill components, or sub-tasks, varied significantly (P < 0.001) in transferability. Scanning tasks in general, particularly the skill of 'extending the examination', transferred with significantly (P < 0.001) less efficacy than pre-exam, instrumentation, post-exam, and additional tasks. Skill transfer improved significantly (P < 0.001) following increased deliberate practice with tutor feedback.

CONCLUSION

Preclinical simulation, using standardised patients, clearly stated objectives to manage cognitive load and immediate tutor feedback, facilitated substantial transfer of ultrasound skills to clinical practice. The efficacy of skill transfer varied but improved with increased deliberate practice and feedback quality.

IMPLICATIONS FOR PRACTICE

The incorporation of preclinical simulation into the core curriculum of sonographer courses is recommended to improve student performance, reduce the burden on clinical staff and increase patient safety during the early stages of ultrasound education.

Sexual and Mental Health Inequalities across Gender Identity and Sex-Assigned-at-Birth among Men-Who-Have-Sex-with-Men in Europe: Findings from EMIS-2017

Some men who have sex with men (MSM) were assigned female at birth (AFB) and/or identify as trans men. Little is known about how these men differ from other MSM. We compared sexual and mental health indicators from the European MSM Internet Survey (EMIS-2017), comparing men AFB and/or currently identifying as trans men with those assigned male at birth (AMB) who identified as men. EMIS-2017 was an opportunistic 33-language online sexual health survey for MSM recruiting throughout Europe. We used regression models adjusting for age, country of residence and employment status to examine differences across groups. An analytic sample of 125,720 men living in 45 countries was used, of which 674 (0.5%) were AFB and 871 (0.7%) identified as trans men. The two sub-groups were not coterminous, forming three minority groups: AFB men, AFB trans men and AMB trans men. Minority groups were younger and more likely unemployed. Anxiety, depression, alcohol dependence and sexual unhappiness were more prevalent in sex/gender minority men. Conversely HIV and STI diagnoses were less common. AMB trans men were most likely to have sexual risk behavior with steady partners and to have unmet health promotion needs, and were least likely to be reached by interventions. Sex assigned at birth and trans identification were associated with different sexual and mental health needs. To facilitate service planning and to foster inclusion, sex-assigned-at-birth and current gender identity should be routinely collected in health surveys.

Clinical and demographic characteristics of people who smoke versus inject crystalline methamphetamine in Australia: Findings from a pharmacotherapy trial

INTRODUCTION AND AIMS

There has been a rapid increase in smoking crystalline methamphetamine in Australia. We compare the clinical and demographic characteristics of those who smoke versus inject the drug in a cohort of people who use methamphetamine.

DESIGN AND METHODS

Participants (N = 151) were dependent on methamphetamine, aged 18-60 years, enrolled in a pharmacotherapy trial for methamphetamine dependence, and reported either injecting (n = 54) or smoking (n = 97) methamphetamine. Measures included the Timeline Followback, Severity of Dependence Scale, Amphetamine Withdrawal Questionnaire, Craving Experience Questionnaire and the Brief Psychiatric Rating Scale (symptoms of depression, hostility, psychosis and suicidality). Simultaneous regression was used to identify independent demographic correlates of smoking methamphetamine and to compare the clinical characteristics of participants who smoked versus injected.

RESULTS

Compared to participants who injected methamphetamine, those who smoked methamphetamine were younger and less likely to be unemployed, have a prison history or live alone. Participants who smoked methamphetamine used methamphetamine on more days in the past 4 weeks than participants who injected methamphetamine (26 vs. 19 days, P = 0.001); they did not differ significantly in their severity of methamphetamine dependence, withdrawal, craving or psychiatric symptoms (P > 0.05). After adjustment for demographic differences, participants who smoked had lower craving [b (SE) = -1.1 (0.5), P = 0.021] and were less likely to report psychotic symptoms [b (SE) = -1.8 (0.7), P = 0.013] or antidepressant use [b (SE) = -1.1 (0.5), P = 0.022].

DISCUSSION AND CONCLUSIONS

Smoking crystalline methamphetamine is associated with a younger less marginalised demographic profile than injecting methamphetamine, but a similarly severe clinical profile.

A Cohort Study of Sleep Quality in Adult Patients with Acute Pulmonary Exacerbations of Cystic Fibrosis

INTRODUCTION

The impact of an acute pulmonary exacerbation of CF on sleep quality has not been established. Patients have greater burden of symptoms, higher intensity of therapy, and are often admitted to hospital outside of their usual sleeping environment.

METHODS

This prospective, observational study determined the prevalence of impaired sleep quality and associated factors in adult patients admitted to a single CF unit with an acute pulmonary exacerbation of CF. Sleep quality was defined by the Pittsburgh Sleep Quality Index (PSQI), with >5 indicating poor sleep quality. Data was obtained through patient questionnaires, chart review, and examination.

RESULTS

Sixty-six percent of patients had impaired sleep quality. Patients with poor sleep had more sleep disruption due to pain (median response "mild sleep disruption" vs "no sleep disruption" p=0.003) and insomnia (mean insomnia severity index (ISI) 13 vs 5, p<0.001). In patients with symptoms of restless legs, poor sleepers had worse symptoms (mean IRLSS 15 vs 5, p=0.029). Univariate modelling showed relationships between PSQI and symptoms of depression and anxiety as well as with sleep disruption due to pain, general noise, and nursing observations. In a multivariable model, ISI was the only variable that remained significantly associated with PSQI. Mean PSQI score increased 0.58 units for each 1 unit increase in ISI (95% CI 0.42-0.73, p<0.001).

CONCLUSIONS

Poor sleep quality is common among patients admitted with an acute exacerbation of CF and is strongly associated with insomnia symptoms in this cohort. This article is protected by copyright. All rights reserved.

A petascale automated imaging pipeline for mapping neuronal circuits with high-throughput transmission electron microscopy

Electron microscopy (EM) is widely used for studying cellular structure and network connectivity in the brain. We have built a parallel imaging pipeline using transmission electron microscopes that scales this technology, implements 24/7 continuous autonomous imaging, and enables the acquisition of petascale datasets. The suitability of this architecture for large-scale imaging was demonstrated by acquiring a volume of more than 1 mm3 of mouse neocortex, spanning four different visual areas at synaptic resolution, in less than 6 months. Over 26,500 ultrathin tissue sections from the same block were imaged, yielding a dataset of more than 2 petabytes. The combined burst acquisition rate of the pipeline is 3 Gpixel per sec and the net rate is 600 Mpixel per sec with six microscopes running in parallel. This work demonstrates the feasibility of acquiring EM datasets at the scale of cortical microcircuits in multiple brain regions and species.

Cross-sectional analysis of chemsex drug use and gonorrhoea diagnosis among men who have sex with men in the UK

Background Illicit drug use among men who have sex with men (MSM) has been associated with sexual risk and HIV. Less is documented about associations with other sexually transmissible infections (STIs). The aim of the present study was to determine whether the use of drugs commonly associated with chemsex is associated with increased risk of gonorrhoea among MSM.

METHODS

Using data from 16065 UK-based respondents to the European MSM Internet Survey (2010), we examined associations between a recent diagnosis of gonorrhoea and three chemsex drugs (crystal methamphetamine, γ-hydroxybutyric acid (GHB)/γ-butyrolactone (GBL) and mephedrone). Univariate logistic regression identified determinants of gonorrhoea diagnosis and multivariate logistic regression models calculated adjusted odds ratios (aORs) for independent associations between chemsex drugs and gonorrhoea.

RESULTS

MSM who reported using crystal methamphetamine and GHB/GBL in the previous year had 1.92- and 2.23-fold higher odds of gonorrhoea respectively over the same period (P=0.0001 and P<0.0001; n=15137) after adjusting for age, recruitment website, HIV status, residence and use of other chemsex drugs. MSM reporting the use of all three chemsex drugs had the highest increased odds (aOR 3.58; P<0.0001; n=15174). Mephedrone alone was not associated with gonorrhoea in multivariate models.

CONCLUSIONS

Use of chemsex drugs is associated with a higher risk of gonorrhoea. The results of this study complement existing research about crystal methamphetamine and indicate a role for GHB/GBL in adverse sexual health outcomes. The use of mephedrone alongside other chemsex drugs may account for its lack of association with gonorrhoea in multivariate models. Future research should use encounter-level data, examine other STIs and attribute pathways through which chemsex leads to infection.

COVID-19 in a complex obstetric patient with cystic fibrosis

We report the first case of COVID-19 in a pregnant patient with cystic fibrosis. We describe the diagnosis, clinical course and management of the patient and their family with regards to clinical, social and infection control measures around delivery. This case highlights the importance of the cooperation of multidisciplinary teams to achieve good clinical outcomes in complex patients with COVID-19.

Characteristics and sexual health service use of MSM engaging in chemsex: results from a large online survey in England

Background

Chemsex, the use of select psychoactive drugs to enhance sexual experience, typically among men who have sex with men (MSM), is associated with sexual behaviours with higher STI risk. Understanding patterns of chemsex among MSM as well as the characteristics and sexual health service engagement of chemsex participants is important for developing interventions.

Methods

Between 5/2016 to 5/2017, 3933 MSM completed an online survey, recruited in sexual health clinics (SHCs) in England (n=421) and via four social networking/dating apps (n=3512). We described patterns of chemsex in the past year and used multivariable logistic regression to investigate differences in demographics and sexual behaviours by chemsex history. We described history of SHC attendance and STI test in the past year among app-recruited chemsex participants.

Results

Chemsex in the past year was reported by 10% of respondents; 19% of SHC-recruited and 9% of app-recruited. Among chemsex participants, 74% had used ≥2 chemsex drugs. In the multivariable model, MSM engaging in chemsex had a raised odds of being HIV-positive (adjusted OR (aOR): 3.6; 95% CI 2.1 to 6.1), aged 30–44 (aOR 1.5 vs <30 years; 95% CI 1.0 to 2.1), being born outside the UK and having engaged in higher risk sexual behaviours in the past 3 months. Chemsex participants also had higher odds of condomless anal sex with partners of different or unknown HIV status, but only among HIV-negative/untested. In the past year, 66% of app-recruited chemsex participants had attended a SHC and 81% had had an STI test.

Conclusion

One in 10 MSM recruited through community and clinical settings across England had engaged in chemsex in the past year. Those that did appear to be at greater STI risk but engaged more actively with sexual health services. This highlights the need and opportunity for chemsex-related services in SHCs and robust referral pathways to drug treatment services.

Classification of electrophysiological and morphological neuron types in the mouse visual cortex

Understanding the diversity of cell types in the brain has been an enduring challenge and requires detailed characterization of individual neurons in multiple dimensions. To systematically profile morpho-electric properties of mammalian neurons, we established a single-cell characterization pipeline using standardized patch-clamp recordings in brain slices and biocytin-based neuronal reconstructions. We built a publicly accessible online database, the Allen Cell Types Database, to display these datasets. Intrinsic physiological properties were measured from 1,938 neurons from the adult laboratory mouse visual cortex, morphological properties were measured from 461 reconstructed neurons, and 452 neurons had both measurements available. Quantitative features were used to classify neurons into distinct types using unsupervised methods. We established a taxonomy of morphologically and electrophysiologically defined cell types for this region of the cortex, with 17 electrophysiological types, 38 morphological types and 46 morpho-electric types. There was good correspondence with previously defined transcriptomic cell types and subclasses using the same transgenic mouse lines.

Association between knowledge, risk behaviours, and testing for sexually transmitted infections among men who have sex with men: findings from a large online survey in the United Kingdom

Objectives

In the UK, men who have sex with men (MSM) bear a disproportionate sexually transmitted infection (STI) burden. We investigated MSM's STI knowledge; whether their STI testing behaviour met national guidelines (annually if sexually active; 3‐monthly if engaging in STI risk behaviours); and the relationship between STI testing in the last 3 months, STI knowledge and STI risk behaviours by HIV status.

Methods

Sexually active (in the last year) men aged > 15 years who were UK residents and were recruited from gay‐orientated online dating platforms completed an anonymous online survey about STI knowledge, STI risk behaviours, and STI testing (March–May 2017). This included 11 true statements about STIs. Respondents scored 1 for each statement they ‘knew’, with those scoring < 6 overall treated as having ‘poor’ STI knowledge. Descriptive and multivariable analyses were conducted, separately by HIV status, to test our hypothesis and calculate adjusted odds ratios (AORs) with 95% confidence intervals (CIs).

Results

Compared to HIV‐positive men (n = 489), the proportion of HIV‐negative/unknown‐status men (n = 3157) with ‘poor’ STI knowledge was significantly higher (46.4% versus 22.9% for HIV‐positive men) and the proportion with STI testing in the last 12 months was lower (71.6% versus 87.2%, respectively). In the last 3 months, 56.9% of HIV‐negative/unknown‐status and 74.1% of HIV‐positive men reported STI risk behaviours, of whom 45.8% and 55.1%, respectively, had been tested for STIs during this time. Among HIV‐negative/unknown‐status men, those reporting STI risk behaviours were more likely (AOR 1.52; 95% CI 1.26–1.84) and those with poor STI knowledge less likely (AOR 0.73; 95% CI 0.61–0.89) to have been tested during the last 3 months. However, neither factor was independently associated with 3‐monthly testing among HIV‐positive men.

Conclusions

Improving STI knowledge, especially among HIV‐negative/unknown‐status men, and promoting frequent STI testing among men engaging in STI risk behaviours are vital to address the poor sexual health of MSM.

Biological variation in the sizes, shapes and locations of visual cortical areas in the mouse

Visual cortex is organized into discrete sub-regions or areas that are arranged into a hierarchy and serves different functions in the processing of visual information. In retinotopic maps of mouse cortex, there appear to be substantial mouse-to-mouse differences in visual area location, size and shape. Here we quantify the biological variation in the size, shape and locations of 11 visual areas in the mouse, after separating biological variation and measurement noise. We find that there is biological variation in the locations and sizes of visual areas.

Human epididymis protein 4 (HE4) levels inversely correlate with lung function improvement (delta FEV1) in cystic fibrosis patients receiving ivacaftor treatment

BACKGROUND

We have recently shown that human epididymis protein 4 (HE4) levels correlate with the severity of cystic fibrosis (CF) lung disease. However, there are no data on how HE4 levels alter in patients receiving CFTR modulating therapy.

METHODS

In this retrospective clinical study, 3 independent CF patient cohorts (US-American: 29, Australian: 12 and Irish: 19 cases) were enrolled carrying at least one Class III CFTR CF-causing mutation (p.Gly551Asp) and being treated with CFTR potentiator ivacaftor. Plasma HE4 was measured by immunoassay before treatment (baseline) and 1-6 months after commencement of ivacaftor, and were correlated with FEV₁ (% predicted), sweat chloride, C-reactive protein (CRP) and body mass index (BMI).

RESULTS

After 1 month of therapy, HE4 levels were significantly lower than at baseline and remained decreased up to 6 months. A significant inverse correlation between absolute and delta values of HE4 and FEV₁ (r = -0.5376; P < .001 and r = -0.3285; P < .001), was retrospectively observed in pooled groups, including an independent association of HE4 with FEV₁ by multiple regression analysis (β = -0.57, P = .019). Substantial area under the receiver operating characteristic curve (ROC-AUC) value was determined for HE4 when 7% mean change of FEV₁ (0.722 [95% CI 0.581-0.863]; P = .029) were used as classifier, especially in the first 2 months of treatment (0.806 [95% CI 0.665-0.947]; P < .001).

CONCLUSIONS

This study shows that plasma HE4 levels inversely correlate with lung function improvement in CF patients receiving ivacaftor. Overall, this potential biomarker may be of value for routine clinical and laboratory follow-up of CFTR modulating therapy.

Investigating the management of alcohol-related presentations in an Australian teaching hospital

INTRODUCTION AND AIMS

Alcohol-related morbidity is estimated to range from 10-38% of the presentations to hospital emergency departments. This study aims to investigate the actual management process for alcohol-related presentations in a teaching hospital in Australia.

DESIGN AND METHODS

Retrospective audit was conducted on the electronic medical records of 210 presentations with a primary or secondary diagnosis of 'alcohol use disorder' at discharge between November 2016 and February 2017. Six key management steps were investigated: identification of alcohol use disorder, documentation, thiamine, alcohol withdrawal assessment, benzodiazepine for alcohol withdrawal and referral to the drug and alcohol consultation liaison service.

RESULTS

Of all the 210 presentations, 77.1% (162) were identified with alcohol use disorder in the initial assessments; 64.3% (135) were documented with alcohol use history, 49.5% (104) were prescribed with thiamine, 48.1% (101) were assessed with the alcohol withdrawal scale, 41% (86) were prescribed with benzodiazepine for alcohol withdrawal and only 38.6% (81) were referred to the drug and alcohol consultation liaison service. Only 8.6% (18) of the initial presentations were directly related to alcohol. These presentations had a higher completion rate in each of the six steps than those (91.4%, 192) not directly related to alcohol. Only 6.2% (13) were formally screened for alcohol use.

DISCUSSION AND CONCLUSIONS

The findings suggest a need to improve the alcohol management practice in the hospital. Routine use of an alcohol screening tool can enable early identification of the alcohol use disorder and to improve the management of this problem in the hospital.

Increased physical activity post-exacerbation is associated with decreased systemic inflammation in cystic fibrosis - An observational study

Background and Objective: We assessed whether measured physical activity in adults with cystic fibrosis (CF) following in-hospital treatment for an acute exacerbation was impacted by levels of systemic and airway inflammation, and whether physical activity post-discharge predicted for time to next pulmonary exacerbation. Methods: Adults with CF were included following hospitalization for a pulmonary exacerbation, and were followed for 12 months. Inflammatory markers and physical activity were measured immediately post-discharge via sputum and plasma concentrations of interleukin-6, interleukin-8, and tumor necrosis factor-α. Physical activity was monitored for 7 days via a Sensewear Armband. Statistical analyses included Shapiro-Wilk's test and Q-Q plots to determine normal distribution, t-tests, Pearson's correlational analyses, and one-way MANOVAs. Results: Thirty-one adults with CF (13 females, 28.8 ± 8.8 years, forced expiratory volume in 1 s (FEV₁) 59.4 ± 23.0% predicted) were prospectively recruited. Physical activity negatively correlated with plasma inflammation (r = -0.48, p < 0.01), and positively with FEV₁ (r = 0.45, p < 0.05) and body mass index (r = 0.39, p < 0.05). There was no significant relationship between time to re-exacerbation and any inflammatory markers or measurement of physical activity (all p > 0.05). Conclusion: Increased physical activity following exacerbation in CF is associated with lower levels of systemic inflammation. Time to re-exacerbation is not related to post-discharge inflammation or physical activity levels.

Unplanned Admission to the Intensive Care Unit in Postoperative Patients—An Indicator of Quality of Anaesthetic Care?

As a clinical indicator, unplanned admission to the Intensive Care Unit from the operating room has been thought to reflect the quality of anaesthesia care intraoperatively. To explore this concept, we examined all such admissions at three hospitals over a three-month period. Cases were classified according to the Victorian Consultative Council on Anaesthetic Mortality and Morbidity (VCCAMM) classification system and an assessment was made as to whether the admission was inevitable or not. Demographic data were collected as well as co-morbidities, severity of illness, length of stay, discharge functional status and destination.

There were 165 admissions identified: 55.8% were male, the median age was 63.5 years (range 15–90). There were 24 in-hospital deaths: 151 patients suffered serious morbidity or mortality. In 32 patients (19.4%), the morbidity or mortality was considered at least partially anaesthetic-related, and in 20 (12.1 %), under the control of the anaesthetist. There were 28 admissions (17.0%) with a further 9 anaesthetic-related admissions (5.5%) which were considered potentially avoidable. Avoidable anaesthetic-related admissions were due to drug overdosage (5 cases), drug error (1 case), problems relating to preoperative assessment (1 case), aspiration (1 case) and pulmonary oedema (1 case).

These findings suggest that unplanned admission to the Intensive Care Unit from the operating room is not a satisfactory indicator of quality of care by the anaesthesia team. This indicator appears to represent mainly the surgical and medical conditions of the patients, and their complications. Only one in twenty unplanned admissions in this series were potentially avoidable due to complications of the anaesthetic or the postoperative analgesia.