Advancing COVID-19 diagnostics: rapid detection of intact SARS-CoV-2 using viability RT-PCR assay.

Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) causes coronavirus disease 2019 (COVID-19). Commonly used methods for both clinical diagnosis of SARS-CoV-2 infection and management of infected patients involve the detection of viral RNA, but the presence of infectious virus particles is unknown. Viability PCR (v-PCR) uses a photoreactive dye to bind non-infectious RNA, ideally resulting in the detection of RNA only from intact virions. This study aimed to develop and validate a rapid v-PCR assay for distinguishing intact and compromised SARS-CoV-2. Propidium monoazide (PMAxx) was used as a photoreactive dye. Mixtures with decreasing percentages of intact SARS-CoV-2 (from 100% to 0%) were prepared from SARS-CoV-2 virus stock and a clinical sample. Each sample was divided into a PMAxx-treated part and a non-PMAxx-treated part. Reverse transcription-PCR (RT-PCR) using an in-house developed SARS-CoV-2 viability assay was then applied to both sample sets. The difference in intact SARS-CoV-2 was determined by subtracting the cycle threshold (Ct) value of the PMAxx-treated sample from the non-PMAxx-treated sample. Mixtures with decreasing concentrations of intact SARS-CoV-2 showed increasingly lower delta Ct values as the percentage of intact SARS-CoV-2 decreased, as expected. This relationship was observed in both high and low viral load samples prepared from cultured SARS-CoV-2 virus stock, as well as for a clinical sample prepared directly from a SARS-CoV-2 positive nasopharyngeal swab. In this study, a rapid v-PCR assay has been validated that can distinguish intact from compromised SARS-CoV-2. The presence of intact virus particles, as determined by v-PCR, may indicate SARS-CoV-2 infectiousness. IMPORTANCE: This study developed a novel method that can help determine whether someone who has been diagnosed with coronavirus disease 2019 (COVID-19) is still capable of spreading the virus to others. Current tests only detect the presence of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) RNA, but cannot tell whether the particles are still intact and can thus infect cells. The researchers used a dye that selectively blocks the detection of damaged virions and free RNA. They showed that this viability PCR reliably distinguishes intact SARS-CoV-2 capable of infecting from damaged SARS-CoV-2 or free RNA in both cultured virus samples and a clinical sample. Being able to quickly assess contagiousness has important implications for contact tracing and safely ending isolation precautions. This viability PCR technique provides a simple way to obtain valuable information, beyond just positive or negative test results, about the actual risk someone poses of transmitting SARS-CoV-2 through the air or surfaces they come into contact with.

[Increasing independence of a resident in training: lessons in disciplinary law]. / Toenemende zelfstandigheid van een aios.

Objective To explore how the disciplinary board allocates responsibility between the resident in training and the supervisor. Design Case law analysis. Method All published disciplinary judgments containing the term 'resident in training' from January 1, 2010, to April 1, 2020 on www.tuchtrecht.overheid.nl were analyzed. Results 116 law cases involving 128 complaints were examined. The disciplinary boards' considerations could be distinguished into four groups: situational characteristics, the resident's competence, the extent and quality of supervision, and information provision. Conclusion The disciplinary boards allocates responsibility between the resident in training and the supervisor in the context of the specific complaint and situation. It is therefore important that the general rules and regulations regarding supervision of residents are clearly outlined and documented, including their momentary alignment. In addition, the hospital has a general responsibility to inform patients about the implications of training residents while providing healthcare.

The incidence of neurological complications in mechanically ventilated COVID-19 ICU patients: An observational single-center cohort study in three COVID-19 periods.

BACKGROUND: Neurological complications in COVID-19 patients admitted to an intensive care unit (ICU) have been previously reported. As the pandemic progressed, therapeutic strategies were tailored to new insights. This study describes the incidence, outcome, and types of reported neurological complications in invasively mechanically ventilated (IMV) COVID-19 patients in relation to three periods during the pandemic. METHODS: IMV COVID-19 ICU patients from the Dutch Maastricht Intensive Care COVID (MaastrICCht) cohort were included in a single-center study (March 2020 - October 2021). Demographic, clinical, and follow-up data were collected. Electronic medical records were screened for neurological complications during hospitalization. Three distinct periods (P1, P2, P3) were defined, corresponding to periods with high hospitalization rates. ICU survivors with and without reported neurological complications were compared in an exploratory analysis. RESULTS: IMV COVID-19 ICU patients (n=324; median age 64 [IQR 57-72] years; 238 males (73.5%)) were stratified into P1 (n=94), P2 (n=138), and P3 (n=92). ICU mortality did not significantly change over time (P1=38.3%; P2=41.3%; P3=37.0%; p=.787). The incidence of reported neurological complications during ICU admission gradually decreased over the periods (P1=29.8%; P2=24.6%; P3=18.5%; p=.028). Encephalopathy/delirium (48/324 (14.8%)) and ICU-acquired weakness (32/324 (9.9%)) were most frequently reported and associated with ICU treatment intensity. ICU survivors with neurological complications (n=53) were older (p=.025), predominantly male (p=.037), and had a longer duration of IMV (p<.001) and ICU stay (p<.001), compared to survivors without neurological complications (n=132). A multivariable analysis revealed that only age was independently associated with the occurrence of neurological complications (ORadj=1.0541; 95% CI=1.0171-1.0925; p=.004). Health-related quality-of-life at follow-up was not significantly different between survivors with and without neurological complications (n = 82, p=.054). CONCLUSIONS: A high but decreasing incidence of neurological complications was reported during three consecutive COVID-19 periods in IMV COVID-19 patients. Neurological complications were related to the intensity of ICU support and treatment, and associated with prolonged ICU stay, but did not lead to significantly worse reported health-related quality-of-life at follow-up.

'Role Model Moments' and 'Troll Model Moments' in Surgical Residency: How Do They Influence Professional Identity Formation?

Introduction: Role models are powerful contributors to residents' professional identity formation (PIF) by exhibiting the values and attributes of the community. While substantial knowledge on different attributes of role models exists, little is known about their influence on residents' PIF. The aim of this study was to explore surgical residents' experiences with role models and to understand how these contribute to residents' PIF. Methods: Adopting a social constructivist paradigm, the authors used a grounded theory approach to develop an explanatory model for residents' experiences with role models regarding PIF. Fourteen surgical residents participated in individual interviews. The authors iteratively performed data collection and analysis, and applied constant comparison to identify relevant themes. Results: Role model behavior is highly situation dependent. Therefore, residents learn through specific 'role model moments'. These moments arise when residents (1) feel positive about a moment, e.g. "inspiration", (2) have a sense of involvement, and (3) identify with their role model. Negative role model moments ('troll model moments') are dominated by negative emotions and residents reject the modeled behavior. Residents learn through observation, reflection and adapting modeled behavior. As a result, residents negotiate their values, strengthen attributes, and learn to make choices on the individual path of becoming a surgeon. Discussion: The authors suggest a nuance in the discussion on role modelling: from 'learning from role models' to 'learning from role model moments'. It is expected that residents' PIF will benefit from this approach since contextual factors and individual needs are emphasized. Residents need to develop antennae for both role model moments and troll model moments and acquire the skills to learn from them. Role model moments and troll model moments are strong catalysts of PIF as residents follow in the footsteps of their role models, yet learn to go their own way.

The laboratory parameters-derived CoLab score as an indicator of the host response in ICU COVID-19 patients decreases over time: a prospective cohort study.

The CoLab score was developed and externally validated to rule out COVID-19 among suspected patients presenting at the emergency department. We hypothesized a within-patient decrease in the CoLab score over time in an intensive care unit (ICU) cohort. Such a decrease would create the opportunity to potentially rule out the need for isolation when the infection is overcome. Using linear mixed-effects models, data from the Maastricht Intensive Care COVID (MaastrICCht) cohort were used to investigate the association between time and the CoLab score. Models were adjusted for sex, APACHE II score, ICU mortality, and daily SOFA score. The CoLab score decreased by 0.30 points per day (95% CI - 0.33 to - 0.27), independent of sex, APACHE II, and Mortality. With increasing SOFA score over time, the CoLab score decreased more strongly (- 0.01 (95% CI - 0.01 to - 0.01) additional decrease per one-point increase in SOFA score.) The CoLab score decreased in ICU patients on mechanical ventilation for COVID-19, with a one-point reduction per three days, independent of sex, APACHE II, and ICU mortality, and somewhat stronger with increasing multi-organ failure over time. This suggests that the CoLab score would decrease below a threshold where COVID-19 can be excluded.

Evolution of distal limb perfusion management in adult peripheral venoarterial extracorporeal membrane oxygenation with femoral artery cannulation.

Limb ischaemia is a clinically relevant complication of venoarterial extracorporeal membrane oxygenation (VA ECMO) with femoral artery cannulation. No selective distal perfusion or other advanced techniques were used in the past to maintain adequate distal limb perfusion. A more recent trend is the shift from the reactive or emergency management to the pro-active or prophylactic placement of a distal perfusion cannula to avoid or reduce limb ischaemia-related complications. Multiple alternative cannulation techniques to the distal perfusion cannula have been developed to maintain distal limb perfusion, including end-to-side grafting, external or endovascular femoro-femoral bypass, retrograde limb perfusion (e.g., via the posterior tibial, dorsalis pedis or anterior tibial artery), and, more recently, use of a bidirectional cannula. Venous congestion has also been recognized as a potential contributing factor to limb ischaemia development and specific techniques have been described with facilitated venous drainage or bilateral cannulation being the most recent, to reduce or avoid venous stasis as a contributor to impaired limb perfusion. Advances in monitoring techniques, such as near-infrared spectroscopy and duplex ultrasound analysis, have been applied to improve decision-making regarding both the monitoring and management of limb ischaemia. This narrative review describes the evolution of techniques used for distal limb perfusion during peripheral VA ECMO.

The importance of creating the right conditions for group intervision sessions among medical residents- a qualitative study.

BACKGROUND: The burnout rates among residents urge for adequate interventions to improve resilience and prevent burnout. Peer reflection, also called group intervision sessions, is a potentially successful intervention to increase the resilience of young doctors. We aimed to gain insight into the perceived added value of intervision sessions and the prerequisite conditions to achieve this, according to residents and intervisors. Our insights might be of help to those who think of implementing intervision sessions in their institution. METHODS: An explorative, qualitative study was performed using focus groups and semi-structured interviews with both residents (n = 8) and intervisors (n = 6) who participated in intervision sessions in a university medical center in the Netherlands. The topic list included the perceived added value of intervision sessions and factors contributing to that. The interviews were transcribed verbatim and coded using NVivo. Thematic analysis was subsequently performed. RESULTS: According to residents and intervisors, intervision sessions contributed to personal and professional identity development; improving collegiality; and preventing burn-out. Whether these added values were experienced, depended on: (1) choices made during preparation (intervisor choice, organizational prerequisites, group composition, workload); (2) conditions of the intervision sessions (safety, depth, role of intervisor, group dynamics, pre-existent development); and (3) the hospital climate. CONCLUSIONS: Intervision sessions are perceived to be of added value to the identity development of medical residents and to prevent becoming burned out. This article gives insight in conditions necessary to reach the added value of intervision sessions. Optimizing preparation, meeting prerequisite conditions, and establishing a stimulating hospital climate are regarded as key to achieve this.

Is insufficient introspection a reason to terminate residency training? - Scrutinising introspection among residents who disputed dismissal.

INTRODUCTION: Insufficient introspection as part of the 4I's model of medical professionalism (introspection, integrity, interaction, and involvement) is considered an important impediment in trainees. How insufficient introspection relates to decisions to terminate residency training remains unclear. Insights into this subject provide opportunities to improve the training of medical professionals. METHODS: We analysed the Dutch Conciliation Board decisions regarding residents dismissed from training between 2011 and 2020. We selected the decisions on residents deemed 'insufficient' regarding introspection as part of the CanMEDS professional domain and compared their characteristics with the decisions about residents without reported insufficiencies on introspection. RESULTS: Of the 120 decisions, 86 dismissed residents were unable to fulfil the requirements of the CanMEDS professional domain. Insufficient introspection was the most prominent insufficiency (73/86). These 73 decisions described more residents' insufficiencies in CanMEDS competency domains compared to the rest of the decisions (3.8 vs. 2.7 p < 0.001), without significant differences regarding gender or years of training. CONCLUSIONS: Insufficient introspection in residents correlates with competency shortcomings programme directors reported in dismissal disputes. The 4I's model facilitates recognition and description of unprofessional behaviours, opening avenues for assessing and developing residents' introspection, but further research is needed for effective implementation in medical education.

Case report: Organ donation after euthanasia for psychiatric suffering: some of the practical and ethical lessons Martijn taught us.

Euthanasia in psychiatric patients presents unique challenges, especially when combined with organ donation. In this article, the hurdles psychiatric patients might encounter after expressing their wish for organ donation after euthanasia, are discussed and illustrated by the case of Martijn, a 45-year-old psychiatric patient who altruistically donated his organs after euthanasia. Hospital and physician-related factors, including caution in determination of mental capacity, consideration of conflicting interests, and healthcare staff stress are discussed as impediments to organ donation after euthanasia (ODE) in psychiatric patients. The primary objective of this article is to raise awareness among psychiatrists regarding the fact that although the combination of euthanasia and organ donation is an uncommonly performed procedure, it is frequently requested by psychiatric patients. In conclusion, the article advocates for a nuanced approach, respecting patients' altruistic wishes while at the same time addressing challenges associated with ODE in psychiatric suffering. Where possible, and within the current medical, ethical and legal boundaries, the importance of facilitating organ donation without unnecessarily prolonging the suffering of competent psychiatric patients seeking euthanasia is emphasized. The topic calls, for example, for further qualitative research to understand the stakeholders' perspectives to determine the perceived possibilities on the one hand and boundaries on the other.

The CoLab score is associated with SARS-CoV-2 viral load during admission in individuals admitted to the intensive care unit: the CoLaIC cohort study.

OBJECTIVES: The present study examines the temporal association between the changes in SARS-CoV-2 viral load during infection and whether the CoLab-score can facilitate de-isolation. METHODS: Nasal swabs and blood samples were collected from ICU-admitted SARS-CoV-2 positive patients at Maastricht UMC+ from March 25, 2020 to October 1, 2021. The CoLab-score was calculated based on 10 blood parameters and age and can range from -43 to 6. Three mixed effects analyses compared patient categories based on initial PCR Ct values (low; Ct≤20, mid; 20>Ct≤30, high; Ct>30), serial PCR Ct values to CoLab-scores over time, and the association between within-patient delta Ct values and CoLab-scores. RESULTS: In 324 patients, the median Ct was 33, and the median CoLab-score was -1.78. Mid (n=110) and low (n=41) Ct-categories had higher CoLab-scores over time (+0.60 points, 95 % CI; 0.04-1.17, and +0.28 points, 95 % CI -0.49 to 1.04) compared to the high Ct (n=87) category. Over time, higher serial Ct values were associated with lower serial CoLab-scores, decreasing by -0.07 points (95 % CI; -0.11 to -0.02) per day. Increasing delta Ct values were associated with a decreasing delta CoLab-score of -0.12 (95 % CI; -0.23; -0.01). CONCLUSIONS: The study found an association between lower viral load on admission and reduced CoLab-score. Additionally, a decrease in viral load over time was associated with a decrease in CoLab-score. Therefore, the CoLab-score may make patient de-isolation an option based on the CoLab-score.

Unprofessional behaviour of GP residents leading to a dismissal dispute: characteristics and outcomes of those who appeal.

BACKGROUND: Recognition of poor performance in General Practice trainees is important because underperformance compromises patients' health and safety. However, in General Practice, research on persistent underperformance while in training and its ultimate consequences is almost completely lacking. We aim to explore the unprofessional behaviours of residents in General Practice who were dismissed from training and who litigated against dismissal. METHODS: We performed a structured analysis using open-source data from all General Practice cases before the Conciliation Board of the Royal Dutch Medical Association between 2011 and 2020. Anonymised law cases about residents from all Dutch GP training programmes were analysed in terms of the quantitative and qualitative aspects related to performance. RESULTS: Between 2011 and 2020, 24 residents who were dismissed from training challenged their programme director's decision. Dismissed residents performed poorly in several competencies, including communication, medical expertise and most prominently, professionalism. Over 90% of dismissed residents failed on professionalism. Most lacked self-awareness and/or failed to profit from feedback. Approximately 80% failed on communication, and about 60% on medical expertise as well. A large majority (more than 80%) of dismissed residents had previously participated in some form of remediation. CONCLUSIONS: Deficiencies in both professionalism and communication were the most prevalent findings among the dismissed General Practice residents. These two deficiencies overlapped considerably. Dismissed residents who challenged their programme director's decision were considered to lack self-awareness, which requires introspection and the appreciation of feedback from others.

Trainee-supervisor collaboration, progress-visualisation, and coaching: a survey on challenges in assessment of ICU trainees.

BACKGROUND: Assessing trainees is crucial for development of their competence, yet it remains a challenging endeavour. Identifying contributing and influencing factors affecting this process is imperative for improvement. METHODS: We surveyed residents, fellows, and intensivists working in an intensive care unit (ICU) at a large non-university hospital in Switzerland to investigate the challenges in assessing ICU trainees. Thematic analysis revealed three major themes. RESULTS: Among 45 physicians, 37(82%) responded. The first theme identified is trainee-intensivist collaboration discontinuity. The limited duration of trainees' ICU rotations, large team size operating in a discordant three-shift system, and busy and unpredictable day-planning hinder sustained collaboration. Potential solutions include a concise pre-collaboration briefing, shared bedside care, and post-collaboration debriefing involving formative assessment and reflection on collaboration. The second theme is the lack of trainees' progress visualisation, which is caused by unsatisfactory familiarisation with the trainees' development. The lack of an overview of a trainee's previous achievements, activities, strengths, weaknesses, and goals may result in inappropriate assessments. Participants suggested implementing digital assessment tools, a competence committee, and dashboards to facilitate progress visualisation. The third theme we identified is insufficient coaching and feedback. Factors like personality traits, hierarchy, and competing interests can impede coaching, while high-quality feedback is essential for correct assessment. Skilled coaches can define short-term goals and may optimise trainee assessment by seeking feedback from multiple supervisors and assisting in both formative and summative assessment. Based on these three themes and the suggested solutions, we developed the acronym "ICU-STAR" representing a potentially powerful framework to enhance short-term trainee-supervisor collaboration in the workplace and to co-scaffold the principles of adequate assessment. CONCLUSIONS: According to ICU physicians, trainee-supervisor collaboration discontinuity, the lack of visualisation of trainee's development, and insufficient coaching and feedback skills of supervisors are the major factors hampering trainees' assessment in the workplace. Based on suggestions by the survey participants, we propose the acronym "ICU-STAR" as a framework including briefing, shared bedside care, and debriefing of the trainee-supervisor collaboration at the workplace as its core components. With the attending intensivists acting as coaches, progress visualisation can be enhanced by actively collecting more data points. TRIAL REGISTRATION: N/A.

Dutch dismissal practices: characteristics, consequences, and contrasts in residents' case law in community-based practice versus hospital-based specialties.

BACKGROUND: In the Netherlands, 2 to 10% of the residents terminate training prematurely. Infrequently, termination of training is by dismissal. Incidentally, residents may disagree, dispute and challenge these decisions from the programme directors. Resident dismissal is always a difficult decision, most commonly made after, repeated assessments, and triangulation of the resulting assessment data and one or more remediation attempts. Nevertheless, the underlying reasons for dismissal and the policies for remediation and dismissal may differ between training programmes. Such differences may however impact the chance of remediation success, the chance of dismissal and subsequent residents' appeals. METHOD: We included a total of 70 residents from two groups (community-based and hospital-based specialties) during 10 years of appeals. Subsequently, we compared these groups on factors potentially associated with the outcome of the conciliation board decision regarding the residents' dismissal. We focused herein on remediation strategies applied, and reasons reported to dismiss residents. RESULTS: In both groups, the most alleged reason to dismiss residents was lack of trainability, > 97%. This was related to deficiencies in professionalism in community-based practice and medical expertise in hospital-based specialties respectively. A reason less frequently mentioned was endangerment of patient care, < 26%. However, none of these residents accused of endangerment, actually jeopardized the patients' health, probably due to the vigilance of their supervisors. Remediation strategies varied between the two groups, whereas hospital-based specialties preferred formal remediation plans in contrast to community-based practice. A multitude of remediation strategies per competency (medical expertise, professionalism, communication, management) were applied and described in these law cases. DISCUSSION: Residents' appeals in community-based practice were significantly less likely to succeed compared to hospital-based specialties. Hypothesised explanatory factors underlying these differences include community-based practices' more prominent attention to the longitudinal assessment of professionalism, the presence of regular quarterly progress meetings, precise documentation of deficiencies, and discretion over the timing of dismissal in contrast to dismissal in the hospital-based specialties which is only formally possible during scheduled formal summative assessment meetings.

Which 'end' do you have in mind? Clinical supervisors' perceptions of professional Identity Formation outcomes in GP residency.

PURPOSE: Professional Identity Formation (PIF) is crucial for high-quality patient care and physician well-being. Few empirical studies examined PIF in residency from the perspective of supervisors. In GP residency, residents are supervised with an 'end in mind' that remains unexplored. To encourage supervisors to reflect on their teaching behaviours, this study investigated GP clinical supervisors' perceptions of PIF outcomes in GP residency. METHODS: Applying qualitative description, focus group interviews were conducted between spring and autumn 2019. Using a semi-structured interview guide, supervisors' perceptions of PIF outcomes were explored. In an iterative coding process applying constant comparison, a thematic analysis was performed of focus group transcripts. RESULTS: We conducted eight focus groups with 55 supervisors at four training institutes across the Netherlands. Half of the supervisors were female. GP supervisors tend to address the 'poor GP' when prompted to address the 'good GP'. PIF outcomes in GP residency should revolve around taking ownership in patient care, self-care and the persistence of GP as a profession. CONCLUSION: PIF can be challenged by a lack of positive language. Supervisors' strong beliefs regarding ideals of the profession potentially compromise PIF when they do not resonate with residents' beliefs, resulting in poor educational alliance.

Predicting 30-day mortality in intensive care unit patients with ischaemic stroke or intracerebral haemorrhage.

BACKGROUND: Stroke patients admitted to an intensive care unit (ICU) follow a particular survival pattern with a high short-term mortality, but if they survive the first 30 days, a relatively favourable subsequent survival is observed. OBJECTIVES: The development and validation of two prognostic models predicting 30-day mortality for ICU patients with ischaemic stroke and for ICU patients with intracerebral haemorrhage (ICH), analysed separately, based on parameters readily available within 24 h after ICU admission, and with comparison with the existing Acute Physiology and Chronic Health Evaluation IV (APACHE-IV) model. DESIGN: Observational cohort study. SETTING: All 85 ICUs participating in the Dutch National Intensive Care Evaluation database. PATIENTS: All adult patients with ischaemic stroke or ICH admitted to these ICUs between 2010 and 2019. MAIN OUTCOME MEASURES: Models were developed using logistic regressions and compared with the existing APACHE-IV model. Predictive performance was assessed using ROC curves, calibration plots and Brier scores. RESULTS: We enrolled 14 303 patients with stroke admitted to ICU: 8422 with ischaemic stroke and 5881 with ICH. Thirty-day mortality was 27% in patients with ischaemic stroke and 41% in patients with ICH. Important factors predicting 30-day mortality in both ischaemic stroke and ICH were age, lowest Glasgow Coma Scale (GCS) score in the first 24 h, acute physiological disturbance (measured using the Acute Physiology Score) and the application of mechanical ventilation. Both prognostic models showed high discrimination with an AUC 0.85 [95% confidence interval (CI), 0.84 to 0.87] for patients with ischaemic stroke and 0.85 (0.83 to 0.86) in ICH. Calibration plots and Brier scores indicated an overall good fit and good predictive performance. The APACHE-IV model predicting 30-day mortality showed similar performance with an AUC of 0.86 (95% CI, 0.85 to 0.87) in ischaemic stroke and 0.87 (0.86 to 0.89) in ICH. CONCLUSION: We developed and validated two prognostic models for patients with ischaemic stroke and ICH separately with a high discrimination and good calibration to predict 30-day mortality within 24 h after ICU admission. TRIAL REGISTRATION: Trial registration: Dutch Trial Registry ( https://www.trialregister.nl/ ); identifier: NTR7438.

Bilateral Femoral Cannulation Is Associated With Reduced Severe Limb Ischemia-Related Complications Compared With Unilateral Femoral Cannulation in Adult Peripheral Venoarterial Extracorporeal Membrane Oxygenation: Results From the Extracorporeal Life Support Registry.

OBJECTIVES: Peripheral venoarterial extracorporeal membrane oxygenation (ECMO) with femoral access is obtained through unilateral or bilateral groin cannulation. Whether one cannulation strategy is associated with a lower risk for limb ischemia remains unknown. We aim to assess if one strategy is preferable. DESIGN: A retrospective cohort study based on the Extracorporeal Life Support Organization registry. SETTING: ECMO centers worldwide included in the Extracorporeal Life Support Organization registry. PATIENTS: All adult patients (≥ 18 yr) who received peripheral venoarterial ECMO with femoral access and were included from 2014 to 2020. INTERVENTIONS: Unilateral or bilateral femoral cannulation. MEASUREMENTS AND MAIN RESULTS: The primary outcome was the occurrence of limb ischemia defined as a composite endpoint including the need for a distal perfusion cannula (DPC) after 6 hours from implantation, compartment syndrome/fasciotomy, amputation, revascularization, and thrombectomy. Secondary endpoints included bleeding at the peripheral cannulation site, need for vessel repair, vessel repair after decannulation, and in-hospital death. Propensity score matching was performed to account for confounders. Overall, 19,093 patients underwent peripheral venoarterial ECMO through unilateral ( n = 11,965) or bilateral ( n = 7,128) femoral cannulation. Limb ischemia requiring any intervention was not different between both groups (bilateral vs unilateral: odds ratio [OR], 0.92; 95% CI, 0.82-1.02). However, there was a lower rate of compartment syndrome/fasciotomy in the bilateral group (bilateral vs unilateral: OR, 0.80; 95% CI, 0.66-0.97). Bilateral cannulation was also associated with lower odds of cannulation site bleeding (bilateral vs unilateral: OR, 0.87; 95% CI, 0.76-0.99), vessel repair (bilateral vs unilateral: OR, 0.55; 95% CI, 0.38-0.79), and in-hospital mortality (bilateral vs unilateral: OR, 0.85; 95% CI, 0.81-0.91) compared with unilateral cannulation. These findings were unchanged after propensity matching. CONCLUSIONS: This study showed no risk reduction for overall limb ischemia-related events requiring DPC after 6 hours when comparing bilateral to unilateral femoral cannulation in peripheral venoarterial ECMO. However, bilateral cannulation was associated with a reduced risk for compartment syndrome/fasciotomy, lower rates of bleeding and vessel repair during ECMO, and lower in-hospital mortality.

Higher levels of circulating desphospho-uncarboxylated matrix Gla protein over time are associated with worse survival: the prospective Maastricht Intensive Care COVID cohort.

BACKGROUND: Extra-hepatic vitamin K-status, measured by dephosphorylated uncarboxylated matrix Gla protein (dp-ucMGP), maintains vascular health, with high levels reflecting poor vitamin K status. The occurrence of extra-hepatic vitamin K deficiency throughout the disease of COVID-19 and possible associations with pulmonary embolism (PE), and mortality in intensive care unit (ICU) patients has not been studied. The aim of this study was to investigated the association between dp-ucMGP, at endotracheal intubation (ETI) and both ICU and six months mortality. Furthermore, we studied the associations between serially measured dp-ucMGP and both PE and mortality. METHODS: We included 112 ICU patients with confirmed COVID-19. Over the course of 4 weeks after ETI, dp-ucMGP was measured serially. All patients underwent computed tomography pulmonary angiography (CTPA) to rule out PE. Results were adjusted for patient characteristics, disease severity scores, inflammation, renal function, history of coumarin use, and coronary artery calcification (CAC) scores. RESULTS: Per 100 pmol/L dp-ucMGP, at ETI, the odds ratio (OR) was 1.056 (95% CI: 0.977 to 1.141, p = 0.172) for ICU mortality and 1.059 (95% CI: 0.976 to 1.059, p = 0.170) for six months mortality. After adjustments for age, gender, and APACHE II score, the mean difference in plasma dp-ucMGP over time of ICU admission was 167 pmol/L (95% CI: 4 to 332, p = 0.047). After additional adjustments for c-reactive protein, creatinine, and history of coumarin use, the difference was 199 pmol/L (95% CI: 50 to 346, p = 0.010). After additional adjustment for CAC score the difference was 213 pmol/L (95% CI: 3 to 422, p = 0.051) higher in ICU non-survivors compared to the ICU survivors. The regression slope, indicating changes over time, did not differ. Moreover, dp-ucMGP was not associated with PE. CONCLUSION: ICU mortality in COVID-19 patients was associated with higher dp-ucMGP levels over 4 weeks, independent of age, gender, and APACHE II score, and not explained by inflammation, renal function, history of coumarin use, and CAC score. No association with PE was observed. At ETI, higher levels of dp-ucMGP were associated with higher OR for both ICU and six month mortality in crude and adjusted modes, although not statistically significantly.

Observation of behavioural skills by medical simulation facilitators: a cross-sectional analysis of self-reported importance, difficulties, observation strategies and expertise development.

BACKGROUND: The association between team performance and patient care was an immense boost for team-based education in health care. Behavioural skills are an important focus in these sessions, often provided via a mannikin-based immersive simulation experience in a (near) authentic setting. Observation of these skills by the facilitator(s) is paramount for facilitated feedback with the team. Despite the acknowledgement that trained facilitators are important for optimal learning, insight into this observation process by facilitators is limited. OBJECTIVES: What are the self-reported current practices and difficulties regarding the observation of behavioural skills amongst facilitators during team training and how have they been trained to observe behavioural skills? METHODS: This cross-sectional study used a pilot-tested, content-validated, multi-linguistic online survey within Europe, distributed through a non-discriminative snowball sampling method. Inclusion was limited to facilitators observing behavioural skills within a medical team setting. RESULTS: A total of 175 persons filled in the questionnaire. All aspects of behavioural skill were perceived as very important to observe. The self-perceived difficulty of the behavioural skill aspects ranged from slightly to moderately difficult. Qualitative analysis revealed three major themes elaborating on this perceived difficulty: (1) not everything can be observed, (2) not everything is observed and (3) interpretation of observed behavioural skills is difficult. Additionally, the number of team members health care facilitators have to observe, outnumbers their self-reported maximum. Strategies and tools used to facilitate their observation were a blank notepad, co-observers and predefined learning goals. The majority of facilitators acquired observational skills through self-study and personal experience and/or observing peers. Co-observation with either peers or experts was regarded as most learn some for their expertise development. Overall, participants perceived themselves as moderately competent in the observation of behavioural skills during team training. CONCLUSIONS: Observation of behavioural skills by facilitators in health care remains a complex and challenging task. Facilitators' limitations with respect to attention, focus and (in)ability to perform concomitant tasks, need to be acknowledged. Although strategies and tools can help to facilitate the observation process, they all have their limitations and are used in different ways.

Cultural Considerations in the Formal Process of Simulation Curriculum Adaptation: A Scoping Review.

SUMMARY STATEMENT: Transborder curriculum partnerships in health professions education have been increasing in numbers in recent years. These partnerships present unique challenges when transferring curricula from one context to another. It has been noted that cultural differences between institutions, faculty, staff, and learners can have profound effects on collaboration. Given the significant need for context and fidelity (especially relative to cultural considerations) in healthcare simulation education, there are gaps that need to be addressed in the transfer of these curricula. A scoping literature review was conducted examining recently published articles with relevance to simulation curriculum design or adaptation in transborder contexts to determine to what extent cultural elements are considered in the design and adaptation of simulation-based education in transborder curriculum partnerships. This review resulted in 19 studies requiring full-text review. Studies represented every region of the world with both near and distant proximity of partnering parties. From the reviewed studies, 8 categories related to curriculum adaptation were identified. These categories, when compared with the themes present in Campinha-Bacote's model of cultural competency, showed complete overlap with the 5 themes of the model plus an additional theme complementary to the model. This scoping review demonstrates that cultural considerations clearly play a role in the adaptation of simulation curricula in transborder healthcare curricular partnerships, but further research is needed to further define the exact nature of that relationship.