Temporal changes in fecal microbiota of patients infected with COVID-19: a longitudinal cohort.

BACKGROUND: Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) is a multifaceted disease potentially responsible for various clinical manifestations including gastro-intestinal symptoms. Several evidences suggest that the intestine is a critical site of immune cell development, gut microbiota could therefore play a key role in lung immune response. We designed a monocentric longitudinal observational study to describe the gut microbiota profile in COVID-19 patients and compare it to a pre-existing cohort of ventilated non-COVID-19 patients. METHODS: From March to December 2020, we included patients admitted for COVID-19 in medicine (43 not ventilated) or intensive care unit (ICU) (14 ventilated) with a positive SARS-CoV-2 RT-PCR assay in a respiratory tract sample. 16S metagenomics was performed on rectal swabs from these 57 COVID-19 patients, 35 with one and 22 with multiple stool collections. Nineteen non-COVID-19 ICU controls were also enrolled, among which 14 developed ventilator-associated pneumonia (pneumonia group) and five remained without infection (control group). SARS-CoV-2 viral loads in fecal samples were measured by qPCR. RESULTS: Although similar at inclusion, Shannon alpha diversity appeared significantly lower in COVID-19 and pneumonia groups than in the control group at day 7. Furthermore, the microbiota composition became distinct between COVID-19 and non-COVID-19 groups. The fecal microbiota of COVID-19 patients was characterized by increased Bacteroides and the pneumonia group by Prevotella. In a distance-based redundancy analysis, only COVID-19 presented significant effects on the microbiota composition. Moreover, patients in ICU harbored increased Campylobacter and decreased butyrate-producing bacteria, such as Lachnospiraceae, Roseburia and Faecalibacterium as compared to patients in medicine. Both the stay in ICU and patient were significant factors affecting the microbiota composition. SARS-CoV-2 viral loads were higher in ICU than in non-ICU patients. CONCLUSIONS: Overall, we identified distinct characteristics of the gut microbiota in COVID-19 patients compared to control groups. COVID-19 patients were primarily characterized by increased Bacteroides and decreased Prevotella. Moreover, disease severity showed a negative correlation with butyrate-producing bacteria. These features could offer valuable insights into potential targets for modulating the host response through the microbiota and contribute to a better understanding of the disease's pathophysiology. TRIAL REGISTRATION: CER-VD 2020-00755 (05.05.2020) & 2017-01820 (08.06.2018).

Impact of an INtervention to increase MOBility in older hospitalized medical patients (INTOMOB): Study protocol for a cluster randomized controlled trial.

BACKGROUND: Low mobility during an acute hospitalization is frequent and associated with adverse effects, including persistent functional decline, institutionalization and death. However, we lack effective interventions to improve mobility that are scalable in everyday practice. The INTOMOB trial - INtervention to increase MOBility in older hospitalized medical patients - will test the effect of a multilevel intervention to improve mobility of older hospitalized patients on functional mobility. METHODS: The INTOMOB multicenter superiority parallel cluster randomized controlled trial will enroll in total 274 patients in Swiss hospitals. Community-dwelling adults aged ≥ 60 years, admitted to a general internal medicine ward with an anticipated length of hospital stay of ≥ 3 days, will be eligible for participation. Unit of randomization will be the wards. A multilevel mobility intervention will be compared to standard of care and target the patients (information and exercise booklets, mobility diary, iPad with exercise videos), healthcare professionals (e-learning, oral presentation, mobility checklist), and environment (posters and pictures on the wards). The primary outcome will be life-space level, measured by the University of Alabama at Birmingham Study of Aging Life-Space Assessment (LSA), at 30 days after enrollment. The LSA is a measure of functional mobility, i.e., how far participants move from bedroom to outside town. Secondary outcomes include, among others, LSA at 180 days, mobility and falls during hospitalization, muscle strength at discharge, and falls, emergency room visits, readmissions, and death within 180 days. DISCUSSION: This study has the potential to improve outcomes of older hospitalized patients through an intervention that should be scalable in clinical practice because it fosters patient empowerment and does not require additional resources. The tools provided to the patients can help them implement better mobility practices after discharge, which can contribute to better functional outcomes. The choice of a functional patient-reported outcome measure as primary outcome (rather than a "simple" objective mobility measure) reinforces the patient-centeredness of the study. TRIAL REGISTRATION: clinicaltrials.gov (NCT05639231, released on December 19 2022); Swiss National Clinical Trial Portal (SNCTP000005259, released on November 28 2022).

Prevalence of atrial fibrillation : The Swiss population-based CoLaus|PsyCoLaus study.

BACKGROUND: Atrial fibrillation (AF) is the most common arrhythmia worldwide and is associated with increased morbi-mortality. The prevalence of AF in the Western world is increasing; however, reports on the prevalence of AF in the past decade are scarce, and whether the prevalence of AF increased during the last decade in Switzerland remains uncertain. Therefore, using data from a Swiss population-based sample, we aimed to assess the point prevalence of AF from 2014 to 2017 and to investigate determinants of AF. METHODS: A cross-sectional analysis of 4616 Caucasian participants aged 45-86 years (55% women) from a population-based sample was designed to explore the point prevalence and determinants of cardiovascular risk factors in the population of Lausanne, Switzerland. AF was assessed using electrocardiography (ECG) between 2014 and 2017. RESULTS: Overall, the point prevalence of AF was 0.9% (95% confidence interval [95% CI]: 0.7-1.2%) and the combined AF + atrial flutter (AFL) point prevalence was 1.1% (95% CI: 8.4-1.5%). The point prevalence of AF was higher among men (81% vs. 19% in women) and increased with age, reaching 3.1% in participants aged ≥ 80. In multivariable analysis, male gender (odds ratio and 95% CI: 4.98 [1.01-24.6]) and increasing age (2.86 [1.40-5.87] per decade) were associated with AF. CONCLUSION: The point prevalence of AF and of AF + AFL, assessed between 2014 and 2017 in the city of Lausanne (Switzerland), was low but increased with age and in men.

[In-hospital withdrawal of benzodiazepines in long term users : a bad idea with good intentions]. / 5 minutes pour apprendre. Less is more: sevrage d'un traitement chronique de benzodiazépine à l'hôpital ­ Mauvaise bonne idée.

Benzodiazepines are among the most frequently prescribed medications in Switzerland, particularly in the elderly. Due to their unfavourable side effect profile, especially in the elderly population, this class of medication should not be prescribed for the treatment of insomnia or non-refractory anxiety disorders. A gradual withdrawal procedure, which is safe and effective according to the literature, should be offered to the patient taking such medication, with adequate monitoring of withdrawal symptoms. This procedure should, in principle, be performed in an outpatient setting but may be initiated in the hospital after discussion with the patient and the primary care physician.

[An unusual asthma attack]. / 5 minutes pour apprendre. Une crise d'asthme pas banale.

A pregnant woman presented with an asthma attack with a poor clinical evolution, requiring intubation. Medications traditionally used for the treatment of asthma in non-pregnant patients (short-acting beta-2 agonists, short-acting muscarinic antagonists, systemic corticosteroids) are considered safe during pregnancy, except for epinephrine. A systematic obstetrical evaluation is a key component in the evaluation and management of an asthmatic crisis during pregnancy. The use of peak-flow spirometers and arterial blood gas can help to recognize the degree of severity of an acute asthma attack.

[Do we all suffer from imposter syndrome?] / Souffrons-nous toutes et tous d'un syndrome d'imposture?

Imposture syndrome is widespread among physicians and medical students. It is defined as a psychological experience in which people doubt their own skills and achievements despite proven successes and thus have an unfounded fear of being found out. This can have serious consequences, such as anxiety and/or depressive disorders, and can lead to burn-out. The Clance scale is a self-assessment tool used to measure the level of imposture experienced and, when appropriate, to assess the suffering caused. The aim of this article is to help recognise this syndrome, which is one way of preventing it.

Le syndrome d'imposture est largement répandu chez les médecins et les étudiant-e-s en médecine. Il est défini comme une expérience psychologique où l'individu, malgré des succès démontrés, doute de ses compétences et réussites et, ainsi, éprouve une crainte infondée d'être démasqué. D'importantes conséquences comme des troubles anxieux et/ou dépressifs associés à un burnout peuvent en découler. L'échelle de Clance est un outil d'autoévaluation permettant de mesurer le niveau d'imposture ressenti et, le cas échéant, d'en évaluer la souffrance engendrée. Le but de cet article est d'aider à reconnaître ce syndrome, ce qui constitue l'un des axes de sa prévention.

[A map for the improvement of healthcare: Swiss Health Care Atlas]. / Cartographie pour l'amélioration des soins : Atlas suisse des services de santé.

The Swiss Health Care Atlas (ASSS) is a free platform accessible to healthcare professionals and the general public. It provides a detailed overview of healthcare practices and the use of pharmaceutical and technological resources in both acute and outpatient care settings throughout Switzerland. It serves as an interactive tool for visualizing medical services and practices in Switzerland, along with regional variations. The ASSS allows the identification of potential under and overutilization of healthcare services, making it a valuable planning and management tool for healthcare and political authorities. This article reviews healthcare practices related to general internal medicine and guides the reader in interpreting a selection of ASSS indicators.

L'Atlas suisse des services de santé (ASSS) est une plateforme gratuite accessible aux professionnels de santé, mais aussi au grand public. Il permet un aperçu détaillé des pratiques de soins et de l'utilisation des ressources pharmacologiques et technologiques, en milieux hospitalier et/ou ambulatoire, sur le territoire helvétique. Il s'agit d'un moyen interactif permettant de visualiser certaines prestations médicales, ainsi que leur variation régionale. L'ASSS permet d'identifier une potentielle sous/surutilisation des services de soins et constitue ainsi un outil de planification et de pilotage pour les autorités sanitaires et politiques. Cet article passe en revue les pratiques de soins liées à la médecine interne générale et guide le lecteur dans l'interprétation d'une sélection d'indicateurs de l'ASSS.

Development of health care workers' mental health during the SARS-CoV-2 pandemic in Switzerland: two cross-sectional studies.

BACKGROUND: Virus outbreaks such as the current SARS-CoV-2 pandemic are challenging for health care workers (HCWs), affecting their workload and their mental health. Since both, workload and HCW's well-being are related to the quality of care, continuous monitoring of working hours and indicators of mental health in HCWs is of relevance during the current pandemic. The existing investigations, however, have been limited to a single study period. We examined changes in working hours and mental health in Swiss HCWs at the height of the pandemic (T1) and again after its flattening (T2). METHODS: We conducted two cross-sectional online studies among Swiss HCWs assessing working hours, depression, anxiety, and burnout. From each study, 812 demographics-matched participants were included into the analysis. Working hours and mental health were compared between the two samples. RESULTS: Compared to prior to the pandemic, the share of participants working less hours was the same in both samples, whereas the share of those working more hours was lower in the T2 sample. The level of depression did not differ between the samples. In the T2 sample, participants reported more anxiety, however, this difference was below the minimal clinically important difference. Levels of burnout were slightly higher in the T2 sample. CONCLUSIONS: Two weeks after the health care system started to transition back to normal operations, HCWs' working hours still differed from their regular hours in non-pandemic times. Overall anxiety and depression among HCWs did not change substantially over the course of the current SARS-CoV-2 pandemic.

[A pleural puncture gone wrong]. / 5 minutes pour apprendre - Une ponction pleurale qui tourne mal.

A patient with a paraneoplastic effusion presented with respiratory distress one hour after a 2 500 ml pleural aspiration performed at noon. A chest X-ray shows signs of unilateral pulmonary oedema. Re-expansion pulmonary oedema is a rare complication. Oxygen therapy is usually sufficient. It is advisable not to perform this procedure outside normal hours and to withdraw a maximum of 1 500 ml at a time.

[From evidence to quality improvement to provide high value and patient centered care]. / De la pratique fondée sur les preuves à l'amélioration de la qualité pour des soins de haute valeur centrés sur le patient.

Evidence-based practice and quality improvement should be at the heart of healthcare and public health. However, their implementation remains insufficient which is reflected in Switzerland in the high frequency of low-value care, in the wide regional variation in care practices, and in the absence of quality monitoring for the majority of healthcare processes. It is necessary to strengthen the monitoring of quality, particularly that perceived by patients, to help strengthening high-value and patient centered care. Because data do not speak for themselves, it is critical to organize how to use indicators for decision.

La pratique fondée sur les preuves et l'amélioration de la qualité devraient être au cœur des soins et de la santé publique. Leur implémentation reste néanmoins insuffisante et se traduit en Suisse par une fréquence élevée de soins de faible valeur, par d'importantes variations régionales dans la pratique de certains soins et par l'absence de monitoring de la qualité pour la majorité des processus de soins. Il faut renforcer le monitoring de la qualité, notamment celle perçue par les patients, pour faciliter la mise en œuvre de soins de haute valeur et centrés sur le patient. Les données ne parlant pas toutes seules, il faut organiser le processus qui va de la production des indicateurs à la décision.

[Artificial Intelligence in internal medicine†: development of a model predicting length of stay for non-elective admissions]. / Intelligence artificielle en médecine interne†: développement d'un modèle prédictif des durées de séjour.

Efficient management of hospitalized patients requires carefully planning each stay by taking into account patients' pathologies and hospital constraints. Therefore, the ability to accurately estimate length of stays allows for better interprofessional tasks coordination, improved patient flow management, and anticipated discharge preparation. This article presents how we built and evaluated a predictive model of length of stay based on clinical data available upon admission to a division of internal medicine. We show that Machine Learning-based approaches can predict lengths of stay with a similar level of accuracy as field experts.

Une prise en charge efficiente des patients nécessite une planification minutieuse des soins en fonction de la pathologie et des contraintes hospitalières. Dans ce contexte, une estimation de la durée de séjour permet de mieux coordonner les tâches interprofessionnelles, de gérer le flux des patients et d'anticiper la préparation à la sortie. Cet article présente la construction et l'évaluation d'un modèle prédictif de la durée de séjour à l'aide de données cliniques présentes à l'admission dans un service de médecine interne universitaire. Nous démontrons que les approches basées sur le Machine Learning sont capables de prédire des durées de séjour avec une performance similaire à celle des professionnels.

Accelerometry assessed physical activity of older adults hospitalized with acute medical illness - an observational study.

BACKGROUND: In a hospital setting and among older patients, inactivity and bedrest are associated with a wide range of negative outcomes such as functional decline, increased risk of falls, longer hospitalization and institutionalization. Our aim was to assess the distribution, determinants and predictors of physical activity (PA) levels using wrist-worn accelerometers in older patients hospitalized with acute medical illness. METHODS: Observational study conducted from February to November 2018 at an acute internal medicine unit in the University hospital of Lausanne, Switzerland. We enrolled 177 patients aged ≥65 years, able to walk prior to admission. PA during acute hospital stay was continuously recorded via a 3D wrist accelerometer. Clinical data was collected from medical records or by interview. Autonomy level prior to inclusion was assessed using Barthel Index score. PA levels were defined as < 30 mg for inactivity, 30-99 mg for light and ≥ 100 for moderate PA. Physically active patients were defined as 1) being in the highest quartile of time spent in light and moderate PA or 2) spending ≥20 min/day in moderate PA. RESULTS: Median [interquartile range - IQR] age was 83 [74-87] years and 60% of participants were male. The median [IQR] time spent inactive and in light PA was 613 [518-663] and 63 [30-97] minutes/day, respectively. PA peaked between 8 and 10 am, at 12 am and at 6 pm. Less than 10% of patients were considered physically active according to definition 2. For both definitions, active patients had a lower prevalence of walking aids and a lower dependency level according to Barthel Index score. For definition 1, use of medical equipment was associated with a 70% reduction in the likelihood of being active: odds ratio (OR) 0.30 [0.10-0.92] p = 0.034; for definition 2, use of walking aids was associated with a 75% reduction in the likelihood of being active: OR = 0.24 [0.06-0.89], p = 0.032. CONCLUSION: Older hospitalized patients are physically active only 10% of daily time and concentrate their PA around eating periods. Whether a Barthel Index below 95 prior to admission may be used to identify patients at risk of inactivity during hospital stay remains to be proven.

[How to fight against overtreatment ? Example of neuroleptic prescriptions for acute delirium]. / Comment lutter contre la surmédicalisation à l'hôpital ? - Exemple des neuroleptiques dans l'état confusionnel aigu.

Since 2014, the Swiss Smarter medicine - choosing wisely campaign has established lists of recommendations, with an emphasis on futile treatments and tests where risks may outweigh benefits. Ultimately this initiative aims to develop, disseminate and implement educational programs to improve quality of care. Literature shows a positive impact of this initiative on clinical practice. Hence, we developed several guidelines based on this initiative in our internal medicine department. This article describes the multimodal and interprofessional strategy aiming to reduce neuroleptic prescriptions in acute delirium. After the implementation of this recommendation in our clinical practice, we noted positive effects, both qualitative and quantitative, confirming the potential benefit of such changes.

Depuis 2014, la campagne Smarter Medicine a établi des recommandations, afin de cibler des thérapies ou des examens considérés comme futiles ou représentant un risque plus grand que le bénéfice apporté au patient. In fine, cette initiative vise à développer, diffuser et implémenter des programmes d'éducation permettant une amélioration de la qualité des soins. La littérature montre un impact positif de cette initiative sur les pratiques cliniques. C'est pourquoi, dans notre service de médecine interne, nous avons développé un certain nombre de recommandations basées sur cette initiative. Cet article décrit une intervention multimodale et interprofessionnelle visant à diminuer la prescription des neuroleptiques lors d'états confusionnels aigus et son impact sur les pratiques.

[Medical students at the bedside of COVID-19 patients†: motivations and challenges]. / Étudiant·e·s en médecine engagé·e·s au chevet des patient·e·s hospitalisé·e·s pour COVID-19 - Motivations et enjeux.

The SARS-CoV-2 pandemic is putting our healthcare system under exceptional pressure, given the number of affected patients. In a context of limited human healthcare resources, senior medical students represent a valuable workforce that can quickly be mobilized for patient care. This is the approach followed in Switzerland and other countries, in several outpatient structures or inpatient services, including the Department of Internal Medicine, of the Lausanne University Hospital (CHUV). In this article, we first give the floor to students who responded to our call. We conclude with important considerations in terms of students' clinical supervision. It is reminded that the involvement of students in the care of COVID-19 patients should only occur on a vo luntary basis.

La pandémie de COVID-19 met notre système de santé sous une pression exceptionnelle, au vu du nombre de patient·e·s atteint·e·s. Dans un contexte de ressources humaines médico-soignantes limitées, les étudiant·e·s en médecine avancé·e·s dans leur cursus représentent un renfort très précieux, rapidement mobilisable auprès des patient·e·s. C'est la démarche suivie en Suisse et ailleurs dans le monde par diverses structures ambulatoires ou services hospitaliers, dont le Service de médecine interne du Centre hospitalier universitaire vaudois (CHUV). Dans cet article, nous donnons tout d'abord la parole aux étudiant·e·s qui ont répondu à notre appel. Nous terminons par des considérations importantes quant à l'accueil et l'accompagnement de ces étudiant·e·s. Il est rappelé que l'engagement d'étudiant·e·s auprès de patient·e·s souffrant de COVID-19 devrait se faire sur une base volontaire uniquement.

[Organizational Impacts and Clinical Challenges of the COVID-19 Pandemic on a Swiss Tertiary Internal Medicine Department]. / Impacts organisationnels et défis cliniques de la pandémie COVID-19 pour un service hospitalier de médecine interne universitaire.

The rapid progression of COVID-19 is an organizational challenge for all hospitals. To secure the patient overflow, the Department internal medicine of the University Hospital of Lausanne increased nurse and medical workforces as well as bed capacity by 65 %, with extraordinary help from other departments. The implemented crisis management stood upon three pillars : a crisis management team, steering documents and internal communication. In this new form, the Department had already taken care of 442 COVID-19 admissions by April 16, 2020. Alongside organizational challenges, clinical issues such as rapid respiratory distress, clinical suspicions with negative PCR and treatment uncertainties in the absence of sufficient evidence were overcome. Despite the peak of the pandemic appearing to have passed, the next phase could be just as complicated.

La progression rapide du COVID-19 constitue un défi organisationnel pour tous les hôpitaux. Pour anticiper un afflux important de patients, le service de médecine interne du CHUV a ainsi augmenté ses forces de travail médico-soignantes et son nombre de lits de 65 % avec un soutien extraordinaire de toute l'institution. Pour opérer ces changements majeurs, l'organisation de crise mise en place s'est appuyée sur trois piliers : une cellule de conduite, des documents de pilotage et une communication interne. Sous cette nouvelle forme, le service a pris en charge 442 hospitalisations COVID-19 jusqu'au 16 avril 2020. Si les enjeux organisationnels ont été majeurs, la gestion des situations complexes, comme les manifestations respiratoires et les multiples incertitudes cliniques diagnostiques et thérapeutiques, ont été également une gageure. Le pic de la pandémie semble passé, mais la prochaine phase pourrait constituer un nouveau défi organisationnel.

Risk stratification of elderly patients with acute pulmonary embolism.

BACKGROUND: Combining high-sensitivity cardiac Troponin T (hs-cTnT), NT-pro-B-type natriuretic peptide (NT-proBNP) and high-sensitivity C-reactive protein (hs-CRP) may improve risk stratification of patients with pulmonary embolism (PE) beyond the PESI risk score. METHODS: In the prospective multicentre SWITCO65+ study, we analysed 214 patients ≥ 65 years with a new submassive PE. Biomarkers and clinical information for the PESI risk score were ascertained within 1 day after diagnosis. Associations of hs-TnT, NT-proBNP, hs-CRP and the PESI risk score with the primary endpoint defined as 6-month mortality were assessed. The discriminative power of the PESI risk score and its combination with hs-cTnT, NT-proBNP and hs-CRP for 6-month mortality was compared using integrated discrimination improvement (IDI) index and net reclassification improvement (NRI). RESULTS: Compared with the lowest quartile, patients in the highest quartile had a higher risk of death during the first 6 months for hs-cTnT (adjusted HR 10.22; 95% CI 1.79-58.34; P = 0.009) and a trend for NT-proBNP (adjusted HR 4.3; 95% CI 0.9-20.41; P = 0.067) unlike hs-CRP (adjusted HR 1.97; 95% CI 0.48-8.05; P = 0.344). The PESI risk score (c-statistic 0.77 (95% CI 0.69-0.84) had the highest prognostic accuracy for 6-month mortality, outperforming hs-cTnT, NT-proBNP and hs-CRP (c-statistics of 0.72, 0.72, and 0.54), respectively. Combining all three biomarkers had no clinically relevant impact on risk stratification when added to the PESI risk score (IDI = 0.067; 95% CI 0.012-0.123; P = 0.018; NRI = 0.101 95% CI -0.099-0.302; P = 0.321). CONCLUSIONS: In elderly patients with PE, 6-month mortality can adequately be predicted by the PESI risk score alone.

Do hospital doctors test for thrombophilia in patients with venous thromboembolism?

The predictive value of factor V Leiden and the G20210A prothrombin mutation regarding recurrent venous thromboembolism (VTE) is limited and does not influence subsequent patient management. Systematic testing for such genetic thrombophilia should be avoided, but to which extent such testing is practiced in a Swiss Hospital is unknown. To examine the current practice of factor V Leiden and/or G20210A prothrombin mutation testing in a University Hospital, and to assess the clinical consequences of testing on patients. 1388 adult patients (48.7% women) with a main diagnosis of VTE hospitalized at the Lausanne university hospital between January 2013 and December 2015. FV Leiden and/or prothrombin G20210A mutation testing was performed in 61 (4.4%) patients with VTE, an average of 20 patients/year. On multivariable analysis, age < 65 years [odds ratio and (95% confidence interval) 5.91 (3.12-11.19)], being admitted in a medical ward [5.71 (2.02-16.16)] and staying in the intensive care unit [0.34 (0.12-0.97)] were associated with thrombophilia testing. No differences were found between patients with and without testing regarding in-hospital mortality [OR and 95% CI for tested vs. non-tested: 0.23 (0.03-1.73), p = 0.153] and length of stay (multivariable adjusted average ± standard error: 16.9 ± 3.3 vs. 20.0 ± 0.7 days for tested and non-tested patients, respectively, p = 0.875). Thrombophilia testing in hospitalized patients with a main diagnosis of VTE is seldom performed. FV Leiden and/or prothrombin G20210A mutation should not be routinely assessed in patients with acute VTE.

Allocation of Internal Medicine Resident Time in a Swiss Hospital: A Time and Motion Study of Day and Evening Shifts.

BACKGROUND: Little current evidence documents how internal medicine residents spend their time at work, particularly with regard to the proportions of time spent in direct patient care versus using computers. OBJECTIVE: To describe how residents allocate their time during day and evening hospital shifts. DESIGN: Time and motion study. SETTING: Internal medicine residency at a university hospital in Switzerland, May to July 2015. PARTICIPANTS: 36 internal medicine residents with an average of 29 months of postgraduate training. MEASUREMENTS: Trained observers recorded the residents' activities using a tablet-based application. Twenty-two activities were categorized as directly related to patients, indirectly related to patients, communication, academic, nonmedical tasks, and transition. In addition, the presence of a patient or colleague and use of a computer or telephone during each activity was recorded. RESULTS: Residents were observed for a total of 696.7 hours. Day shifts lasted 11.6 hours (1.6 hours more than scheduled). During these shifts, activities indirectly related to patients accounted for 52.4% of the time, and activities directly related to patients accounted for 28.0%. Residents spent an average of 1.7 hours with patients, 5.2 hours using computers, and 13 minutes doing both. Time spent using a computer was scattered throughout the day, with the heaviest use after 6:00 p.m. LIMITATION: The study involved a small sample from 1 institution. CONCLUSION: At this Swiss teaching hospital, internal medicine residents spent more time at work than scheduled. Activities indirectly related to patients predominated, and about half the workday was spent using a computer. PRIMARY FUNDING SOURCE: Information Technology Department and Department of Internal Medicine of Lausanne University Hospital.

[Venous thromboembolism prophylaxis in internal medicine : for whom ?] / Prophylaxie thromboembolique en médecine interne : pour qui ?

The incidence of thromboembolic events remains high in hospitalized medical patients, despite known risk factors and international recommendations regarding prevention of venous thromboembolism. Several studies have proven that the use of a thromboembolic prediction risk score, associated with an informatic alert system, improve the prescription of adequate thromboembolic prophylaxis and decrease the number of thromboembolic events. In this article, we present an overview of thromboembolic risk factors, thromboembolic prediction risk scores, and interventions that improve thromboembolic prophylaxis prescription.

L'incidence de thrombose veineuse profonde et d'embolie pulmonaire lors d'une hospitalisation en médecine aiguë reste élevée, malgré des facteurs de risque connus et des recommandations internationales de prescription de prophylaxie thromboembolique. Plusieurs études ont prouvé que l'utilisation d'un score de prédiction du risque thromboembolique, couplé à un système d'alerte informatique, améliore la prescription appropriée de prophylaxie thromboembolique et diminue le nombre d'événements thromboemboliques. Dans cet article, nous présentons les facteurs de risque thromboembolique, les scores de prédiction du risque de maladie thromboembolique, ainsi que des interventions qui permettent d'améliorer la prescription appropriée de thromboprophylaxie.

Predicting recurrence after unprovoked venous thromboembolism: prospective validation of the updated Vienna Prediction Model.

The updated Vienna Prediction Model for estimating recurrence risk after an unprovoked venous thromboembolism (VTE) has been developed to identify individuals at low risk for VTE recurrence in whom anticoagulation (AC) therapy may be stopped after 3 months. We externally validated the accuracy of the model to predict recurrent VTE in a prospective multicenter cohort of 156 patients aged ≥65 years with acute symptomatic unprovoked VTE who had received 3 to 12 months of AC. Patients with a predicted 12-month risk within the lowest quartile based on the updated Vienna Prediction Model were classified as low risk. The risk of recurrent VTE did not differ between low- vs higher-risk patients at 12 months (13% vs 10%; P = .77) and 24 months (15% vs 17%; P = 1.0). The area under the receiver operating characteristic curve for predicting VTE recurrence was 0.39 (95% confidence interval [CI], 0.25-0.52) at 12 months and 0.43 (95% CI, 0.31-0.54) at 24 months. In conclusion, in elderly patients with unprovoked VTE who have stopped AC, the updated Vienna Prediction Model does not discriminate between patients who develop recurrent VTE and those who do not. This study was registered at www.clinicaltrials.gov as #NCT00973596.