Current Organizations / Institutes

The organizations/institutes from the scholar's latest article

Previous Organizations / Institutes

The organizations / institutes from the scholar's other articles in the past ten years


Mikhail Dziadzko has a total of 185 co-authors. Here are the top co-authors by number of shared publications:

  • Vitaly Herasevich

    Department of Anesthesiology and Perioperative Medicine, Division of Critical Care, Mayo Clinic, Rochester, MN 55905, USA

    10 shared publications
  • Frédéric Aubrun

    Département d’Anesthésie-Réanimation, Douleur, Hôpital de la Croix Rousse, Hospices Civils de Lyon, 69004 Lyon, France

    8 shared publications
  • Ognjen Gajic

    Division of Pulmonary and Critical Care Medicine, Department of Medicine, Mayo Clinic, Rochester, MN

    8 shared publications
  • Frederic Aubrun

    Département d'Anesthésie-Réanimation, Hôpital de la Croix-Rousse, Hospices Civils de Lyon, Université Claude Bernard, Lyon, France; Research on Healthcare Performance Lab (RESHAPE INSERM U1290), Université Claude Bernard, Lyon, France

    6 shared publications
  • Brian W. Pickering

    Department of Anesthesiology, Mayo Clinic, Rochester, MN, United States of America

    5 shared publications
  • Fabrice Heritier

    Ctr Hosp Roanne, Dept Anesthesie Reanimat, Roanne, France

    4 shared publications

Latest Publications

  • No effect of tetracosactide for treatment of postdural puncture headaches in parturient women: a double-blind randomised controlled clinical trial

    by Mikhail Dziadzko, Lionel Bouvet, Nadia Steer, Célia Depaulis, Pierre Pradat, Fanny Joubert, Laure Lalande, Dominique Chassard, Frederic Aubrun


  • Open Access

    Are Healthcare Resource Utilization Patterns for Pain Management Specific to Post-Acute COVID-19 Syndrome? A Study of Survivors from the First French Pandemic Wave

    by Mikhail Dziadzko, Manon Belhassen, Eric Van Ganse, Claire Marant-Micallef, Valeria Martinez, Frederic Aubrun

    Objectives: Chronic pain is a common symptom in Post-Acute COVID-19 Syndrome (PACS), affecting 11–60% of patients, but the link between COVID-19 and chronic pain remains unclear. This study assesses healthcare resource utilization (HRU) for pain management among French COVID-19 survivors, using the National French Claims Database (SNDS). We analyzed medical consultations, rehabilitation services, diagnostic procedures, and medication dispensing to identify PACS-related pain patterns and their impact on the healthcare system. Methods: The cohort included 68,822 patients hospitalized during the first COVID-19 wave (March–June 2020), with 13,939 ICU survivors. HRU was assessed for six months pre- and post-hospitalization in four areas: (1) medical consultations and rehabilitation; (2) pain-related medication dispensing; (3) neuropathic diagnostic procedures; (4) hospital admissions for chronic pain. A post–pre ratio (PP-Ratio) compared post-COVID to pre-COVID HRU. Results: Significant changes in HRU were observed, particularly for ICU survivors. Neurology consultations (PP-Ratio 1.41) and outpatient physical therapy (PP-Ratio 1.69) increased. Dispensing of strong opioids, antiepileptics, anxiolytics, and hypnotics rose, while NSAID use decreased. Hospitalizations for chronic pain also increased (PP-Ratio 1.52). Similar trends were seen among ICU survivors, with notable increases in opioid and antiepileptic use. No distinct PACS-related pain patterns emerged. Conclusions: Non-specific increases in HRU for pain management were found following COVID-19 hospitalization, likely due to disease severity and ICU care rather than PACS-related chronic pain. Further research is needed to explore long-term pain outcomes in this population.


  • Open Access

    Health Care Resource Use and Total Mortality After Hospital Admission for Severe COVID-19 Infections During the Initial Pandemic Wave in France: Descriptive Study

    by Mikhail Dziadzko, Manon Belhassen, Eric Van Ganse, Fabrice Heritier, Marjorie Berard, Claire Marant-Micallef, Frederic Aubrun

    Background: Little is known about post–hospital health care resource use (HRU) of patients admitted for severe COVID-19, specifically for the care of patients with postacute COVID-19 syndrome (PACS). Objective: A list of HRU domains and items potentially related to PACS was defined, and potential PACS-related HRU (PPRH) was compared between the pre– and post–COVID-19 periods, to identify new outpatient care likely related to PACS. Methods: A retrospective cohort study was conducted with the French National Health System claims data (SNDS). All patients hospitalized for COVID-19 between February 1, 2020, and June 30, 2020 were described and investigated for 6 months, using discharge date as index date. Patients who died during index stay or within 30 days after discharge were excluded. PPRH was assessed over the 5 months from day 31 after index date to end of follow-up, that is, for the post–COVID-19 period. For each patient, a pre–COVID-19 period was defined that covered the same calendar time in 2019, and pre–COVID-19 PPRH was assessed. Post- or pre- ratios (PP ratios) of the percentage of users were computed with their 95% CIs, and PP ratios>1.2 were considered as “major HRU change.” Results: The final study population included 68,822 patients (median age 64.8 years, 47% women, median follow-up duration 179.3 days). Altogether, 23% of the patients admitted due to severe COVID-19 died during the hospital stay or within the 6 months following discharge. A total of 8 HRU domains were selected to study PPRH: medical visits, technical procedures, dispensed medications, biological analyses, oxygen therapy, rehabilitation, rehospitalizations, and nurse visits. PPRs showed novel outpatient care in all domains and in most items, without specificity, with the highest ratios observed for the care of thoracic conditions. Conclusions: Patients hospitalized for severe COVID-19 during the initial pandemic wave had high morbi-mortality. The analysis of HRU domains and items most likely to be related to PACS showed that new care was commonly initiated after discharge but with no specificity, potentially suggesting that any impact of PACS was part of the overall high HRU of this population after hospital discharge. These purely descriptive results need to be completed with methods for controlling for confusion bias through subgroup analyses. Trial Registration: ClinicalTrials.gov NCT05073328; https://clinicaltrials.gov/ct2/show/NCT05073328


  • Open Access

    Examiner workload comparison: three structured oral examination formats for the European diploma in anaesthesiology and intensive care

    by Mikhail Dziadzko, Andrey Varvinskiy, Rodolphe Di Loreto, Hugues Scipioni, Bazil Ateleanu, Markus Klimek, Joana Berger-Estilita

    The COVID-19 pandemic triggered transformations in academic medicine, rapidly adopting remote teaching and online assessments. Whilst virtual environments show promise in evaluating medical knowledge, their impact on examiner workload is unclear. This study explores examiner's workload during different European Diploma in Anaesthesiology and Intensive Care Part 2 Structured Oral Examinations formats. We hypothesise that online exams result in lower examiner's workload than traditional face-to-face methods. We also investigate workload structure and its correlation with examiner characteristics and marking performance. In 2023, examiner's workload for three examination formats (face-to-face, hybrid, online) using the NASA TLX instrument was prospectively evaluated. The impact of examiner demographics, candidate scoring agreement, and examination scores on workload was analysed. The overall NASA TLX score from 215 workload measurements in 142 examiners was high at 59.61 ± 14.13. The online examination had a statistically higher workload (61.65 ± 12.84) than hybrid but not face-to-face. Primary contributors to workload were mental and temporal demands, and effort. Online exams were associated with elevated frustration. Male examiners and those spending more time on exam preparation experienced a higher workload. Multiple diploma specialties and familiarity with European Diploma in Anaesthesiology and Intensive Care exams were protective against high workload. Perceived workload did not impact marking agreement or examination scores across all formats. Examiners experience high workload. Online exams are not systematically associated with decreased workload, likely due to frustration. Despite workload differences, no impact on examiner's performance or examination scores was found. The hybrid examination mode, combining face-to-face and online, was associated with a minor but statistically significant workload reduction. This hybrid approach may offer a more balanced and efficient examination process while maintaining integrity, cost savings, and increased accessibility for candidates.


  • Weak Correlation Between Perceived and Measured Intensive Care Unit Nursing Workload

    by Florent Wallet, Audrey Bonnet, Vincent Thiriaud, Anaelle Caillet, Vincent Piriou, Charles-Hervé Vacheron, Arnaud Friggeri, Mikhail Dziadzko

    Background: Efficient management of nursing workload in the intensive care unit (ICU) is essential for patient safety, care quality, and nurse well-being. Current ICU-specific workload assessment scores lack comprehensive coverage of nursing activities and perceived workload. Purpose: The purpose of this study was to assess the correlation between ICU nurses’ perceived workload and the Nine Equivalents of Nursing Manpower Use Score (NEMS). Methods: In a 45-bed adult ICU at a tertiary academic hospital, nurses’ perceived shift workload (measured with an 11-point Likert scale) was correlated with the NEMS, calculated manually and electronically. Results: The study included 1734 observations. The perceived workload was recorded for 77.6% of observations. A weak positive correlation was found between perceived and objectively measured workload. Conclusion: Findings indicate a need to consider the multifaceted nature of nursing activities and individual workload perceptions in the ICU.


  • Open Access

    The Potential Role of Wearable Inertial Sensors in Laboring Women with Walking Epidural Analgesia

    by Mikhail Dziadzko, Adrien Péneaud, Lionel Bouvet, Thomas Robert, Laetitia Fradet, David Desseauve

    There is a growing interest in wearable inertial sensors to monitor and analyze the movements of pregnant women. The noninvasive and discrete nature of these sensors, integrated into devices accumulating large datasets, offers a unique opportunity to study the dynamic changes in movement patterns during the rapid physical transformations induced by pregnancy. However, the final cut of the third trimester of pregnancy, particularly the first stage of labor up to delivery, remains underexplored. The growing popularity of “walking epidural”, a neuraxial analgesia method allowing motor function preservation, ambulation, and free movement throughout labor and during delivery, opens new opportunities to study the biomechanics of labor using inertial sensors. Critical research gaps exist in parturient fall prediction and detection during walking epidural and understanding pain dynamics during labor, particularly in the presence of pelvic girdle pain. The analysis of fetal descent, upright positions, and their relationship with dynamic pelvic movements facilitated by walking during labor is another area where inertial sensors can play an interesting role. Moreover, as contemporary obstetrics advocate for less restricted or non-restricted movements during labor, the role of inertial sensors in objectively measuring the quantity and quality of women’s movements becomes increasingly important. This includes studying the impact of epidural analgesia on maternal mobility, walking patterns, and associated obstetrical outcomes. In this paper, the potential use of wearable inertial sensors for gait analysis in the first stage of labor is discussed.


  • Open Access

    Health Care Resource Use and Total Mortality After Hospital Admission for Severe COVID-19 Infections During the Initial Pandemic Wave in France: Descriptive Study (Preprint)

    by Mikhail Dziadzko, Manon Belhassen, Eric Van Ganse, Fabrice Heritier, Marjorie Berard, Claire Marant-Micallef, Frederic Aubrun

    BACKGROUND Little is known about post–hospital health care resource use (HRU) of patients admitted for severe COVID-19, specifically for the care of patients with postacute COVID-19 syndrome (PACS). OBJECTIVE A list of HRU domains and items potentially related to PACS was defined, and potential PACS-related HRU (PPRH) was compared between the pre– and post–COVID-19 periods, to identify new outpatient care likely related to PACS. METHODS A retrospective cohort study was conducted with the French National Health System claims data (SNDS). All patients hospitalized for COVID-19 between February 1, 2020, and June 30, 2020 were described and investigated for 6 months, using discharge date as index date. Patients who died during index stay or within 30 days after discharge were excluded. PPRH was assessed over the 5 months from day 31 after index date to end of follow-up, that is, for the post–COVID-19 period. For each patient, a pre–COVID-19 period was defined that covered the same calendar time in 2019, and pre–COVID-19 PPRH was assessed. Post- or pre- ratios (PP ratios) of the percentage of users were computed with their 95% CIs, and PP ratios>1.2 were considered as “major HRU change.” RESULTS The final study population included 68,822 patients (median age 64.8 years, 47% women, median follow-up duration 179.3 days). Altogether, 23% of the patients admitted due to severe COVID-19 died during the hospital stay or within the 6 months following discharge. A total of 8 HRU domains were selected to study PPRH: medical visits, technical procedures, dispensed medications, biological analyses, oxygen therapy, rehabilitation, rehospitalizations, and nurse visits. PPRs showed novel outpatient care in all domains and in most items, without specificity, with the highest ratios observed for the care of thoracic conditions. CONCLUSIONS Patients hospitalized for severe COVID-19 during the initial pandemic wave had high morbi-mortality. The analysis of HRU domains and items most likely to be related to PACS showed that new care was commonly initiated after discharge but with no specificity, potentially suggesting that any impact of PACS was part of the overall high HRU of this population after hospital discharge. These purely descriptive results need to be completed with methods for controlling for confusion bias through subgroup analyses. CLINICALTRIAL ClinicalTrials.gov NCT05073328; https://clinicaltrials.gov/ct2/show/NCT05073328

  • Chronic pain characteristics in COVID-19 survivors after an ICU stay. A cross-sectional study

    by Valéria Martinez, Mikhail Dziadzko, Juan Tamayo, Sébastien Schitter, Leah Guichard, Florine Richeux, Stephanie Roggerone, Patricia Branche, Leo Schlaefflin, Youri Nacto, et al.


  • Open Access

    Relevance of Visual Acuity Measurement for Therapeutic Decisions in Age-Related Macular Degeneration

    by Thibaud Mathis, Batoul El Ameen, Mayeul Chaperon, Yasmine Serrar, François Devin, Mikhail Dziadzko, Amina Rezkallah, Laurent Kodjikian

    The aim of this study is to assess if the decision to retreat could be determined by anatomical criteria (mostly driven by optical coherence tomography (OCT)-guided strategy) rather than the gold standard (visual acuity (VA) and OCT) in patients with neovascular age-related macular degeneration (nAMD). A cross-sectional study of 142 eyes already treated for nAMD from September 2021 to December 2021 was performed. At inclusion, a first therapeutic decision was made based on the analysis of the OCT. This decision was then maintained or modified after being made aware of the patient’s VA. Sensitivity, specificity, positive predictive value (PPV) and negative predictive value (NPV) were calculated. The OCT-guided strategy matched the gold standard for treatment decisions in 131 of the 142 eyes included (92.3%). The sensitivity and specificity of the OCT-guided strategy for the retreatment decision were 94.0% and 89.8%, respectively. PPV and NPV were 92.9% and 91.4%, respectively. Considering the treatment regimen, eyes followed under the Pro ReNata regimen showed better sensitivity (100%) and specificity (93.3%) than eyes followed under the treat and extend regimen (93.5% and 88.6%, respectively). Based on the findings of this study, the follow-up for selected patients with nAMD under anti-VEGF treatment could be monitored without regular VA testing with acceptable performance.