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Frick AE, Schiefer J, Maleczek M, Schwarz S, Benazzo A, Rath A, Kulu A, Hritcu R, Faybik P, Schaden E, Jaksch P, Tschernko E, Frommlet F, Markstaller K, Hoetzenecker K. The Effect of Prone Positioning After Lung Transplantation. Ann Thorac Surg 2024; 117:1045-1051. [PMID: 37150273 PMCID: PMC10162468 DOI: 10.1016/j.athoracsur.2023.04.036] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/28/2022] [Revised: 03/19/2023] [Accepted: 04/10/2023] [Indexed: 05/09/2023]
Abstract
BACKGROUND Prone positioning has become a standard therapy in acute respiratory distress syndrome to improve oxygenation and decrease mortality. However, little is known about prone positioning in lung transplant recipients. This large, singe-center analysis investigated whether prone positioning improves gas exchange after lung transplantation. METHODS Clinical data of 583 patients were analyzed. Prone position was considered in case of impaired gas exchange Pao2/fraction of oxygen in inhaled air (<250), signs of edema after lung transplantation, and/or evidence of reperfusion injury. Patients with hemodynamic instability or active bleeding were not proned. Impact of prone positioning (n = 165) on gas exchange, early outcome and survival were determined and compared with patients in supine positioning (n = 418). RESULTS Patients in prone position were younger, more likely to have interstitial lung disease, and had a higher lung allocation score. Patients were proned for a median of 19 hours (interquartile range,15-26) hours). They had significantly lower Pao2/fraction of oxygen in inhaled air (227 ± 96 vs 303 ± 127 mm Hg, P = .004), and lower lung compliance (24.8 ± 9.1 mL/mbar vs 29.8 ± 9.7 mL/mbar, P < .001) immediately after lung transplantation. Both values significantly improved after prone positioning for 24 hours (Pao2/fraction of oxygen ratio: 331 ± 91 mm Hg; lung compliance: 31.7 ± 20.2 mL/mbar). Survival at 90 days was similar between the 2 groups (93% vs 96%, P = .105). CONCLUSIONS Prone positioning led to a significant improvement in lung compliance and oxygenation after lung transplantation. Prospective studies are needed to confirm the benefit of prone positioning in lung transplantation.
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Affiliation(s)
| | - Judith Schiefer
- Department of Anesthesia, General Intensive Care and Pain Management, Medical University of Vienna, Vienna, Austria
| | - Mathias Maleczek
- Department of Anesthesia, General Intensive Care and Pain Management, Medical University of Vienna, Vienna, Austria
| | - Stefan Schwarz
- Department of Thoracic Surgery, Medical University of Vienna, Vienna, Austria
| | - Alberto Benazzo
- Department of Thoracic Surgery, Medical University of Vienna, Vienna, Austria
| | - Anna Rath
- Department of Thoracic Surgery, Medical University of Vienna, Vienna, Austria
| | - Askin Kulu
- Department of Thoracic Surgery, Medical University of Vienna, Vienna, Austria
| | - Richard Hritcu
- Department of Thoracic Surgery, Medical University of Vienna, Vienna, Austria
| | - Peter Faybik
- Department of Anesthesia, General Intensive Care and Pain Management, Medical University of Vienna, Vienna, Austria
| | - Eva Schaden
- Department of Anesthesia, General Intensive Care and Pain Management, Medical University of Vienna, Vienna, Austria
| | - Peter Jaksch
- Department of Thoracic Surgery, Medical University of Vienna, Vienna, Austria
| | - Edda Tschernko
- Division of Cardiothoracic and Vascular Anesthesia, Department of Anesthesia, Intensive Care Medicine and Pain Medicine, Medical University of Vienna, Vienna, Austria
| | - Florian Frommlet
- Center for Medical Statistics, Informatics and Intelligent Systems, Medical University of Vienna, Vienna, Austria
| | - Klaus Markstaller
- Department of Anesthesia, General Intensive Care and Pain Management, Medical University of Vienna, Vienna, Austria
| | - Konrad Hoetzenecker
- Department of Thoracic Surgery, Medical University of Vienna, Vienna, Austria.
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2
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Maleczek M, Laxar D, Kapral L, Kuhrn M, Abulez Y, Dibiasi C, Kimberger O. A Comparison of 5 Algorithmic Methods and Machine Learning Pattern Recognition for Artifact Detection in Electronic Records of 5 Different Vital Signs: A Retrospective Analysis. Anesthesiology 2024:139938. [PMID: 38466210 DOI: 10.1097/aln.0000000000004971] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/12/2024]
Abstract
BACKGROUND Research on electronic health record physiological data is common, invariably including artifacts. Traditionally, these artifacts have been handled using simple filter techniques. The authors hypothesized different artifact detection algorithms, including machine learning, may be necessary to provide optimal performance for various vital signs and clinical contexts. MATERIALS AND METHODS In a retrospective single center study, intraoperative OR and ICU electronic health record datasets including heart rate, oxygen saturation, blood pressure, temperature, and capnometry were included. All records were screened for artifacts by at least two human experts. Classical artifact detection methods (cutoff, multiples of standard deviation (z-value), interquartile range, and local outlier factor) and a supervised learning model implementing long short-term memory neural networks were tested for each vital sign against the human expert reference dataset. For each artifact detection algorithm, sensitivity and specificity were calculated. RESULTS A total of 106 (53 operating room and 53 ICU) patients were randomly selected, resulting in 392,808 data points. Human experts annotated 5,167 (1.3%) data points as artifacts. The artifact detection algorithms demonstrated large variations in performance. The specificity was above 90% for all detection methods and all vital signs. The neural network showed significantly higher sensitivities than the classic methods for: heart rate (ICU: 33.6%, 95% CI: 33.1-44.6), systolic invasive blood pressure (both in the OR (62.2%, 95% CI: 57.5-71.9) and ICU (60.7%, 95% CI: 57.3-71.8), and temperature in the OR (76.1%, 95% CI: 63.6-89.7). The confidence intervals for specificity overlapped for all methods. Generally, sensitivity was low, with only the z-value for oxygen saturation in the operating room reaching 88.9%. All other sensitivities were less than 80%. CONCLUSION No single artifact detection method consistently performed well across different vital signs and clinical settings. Neural networks may be a promising artifact detection method for specific vital signs.
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Affiliation(s)
- Mathias Maleczek
- Department of Anesthesiology, Intensive Care Medicine and Pain Medicine, Medical University of Vienna, Vienna, Austria
- Ludwig Boltzmann Institute for Digital Health and Patient Safety, Medical University of Vienna, Vienna, Austria
| | - Daniel Laxar
- Department of Anesthesiology, Intensive Care Medicine and Pain Medicine, Medical University of Vienna, Vienna, Austria
- Ludwig Boltzmann Institute for Digital Health and Patient Safety, Medical University of Vienna, Vienna, Austria
| | - Lorenz Kapral
- Ludwig Boltzmann Institute for Digital Health and Patient Safety, Medical University of Vienna, Vienna, Austria
| | - Melanie Kuhrn
- Ludwig Boltzmann Institute for Digital Health and Patient Safety, Medical University of Vienna, Vienna, Austria
| | - Yannic Abulez
- Ludwig Boltzmann Institute for Digital Health and Patient Safety, Medical University of Vienna, Vienna, Austria
| | - Christoph Dibiasi
- Department of Anesthesiology, Intensive Care Medicine and Pain Medicine, Medical University of Vienna, Vienna, Austria
- Ludwig Boltzmann Institute for Digital Health and Patient Safety, Medical University of Vienna, Vienna, Austria
| | - Oliver Kimberger
- Department of Anesthesiology, Intensive Care Medicine and Pain Medicine, Medical University of Vienna, Vienna, Austria
- Ludwig Boltzmann Institute for Digital Health and Patient Safety, Medical University of Vienna, Vienna, Austria
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Baumgartner C, Wolf P, Hermann A, König S, Maleczek M, Laxar D, Poglitsch M, Domenig O, Krenn K, Schiefer J, Kautzky-Willer A, Krebs M, Hermann M. Profiling endogenous adrenal function during veno-venous ECMO support in COVID-19 ARDS: a descriptive analysis. Front Endocrinol (Lausanne) 2024; 14:1321511. [PMID: 38333725 PMCID: PMC10852060 DOI: 10.3389/fendo.2023.1321511] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/14/2023] [Accepted: 12/18/2023] [Indexed: 02/10/2024] Open
Abstract
Background Prolonged critical illness is often accompanied by an impairment of adrenal function, which has been frequently related to conditions complicating patient management. The presumed connection between hypoxia and the pathogenesis of this critical- illness- related corticosteroid insufficiency (CIRCI) might play an important role in patients with severe acute respiratory distress syndrome (ARDS). Since extracorporeal membrane oxygenation (ECMO) is frequently used in ARDS, but data on CIRCI during this condition are scarce, this study reports the behaviour of adrenal function parameters during oxygenation support with veno-venous (vv)ECMO in coronavirus disease 2019 (COVID-19) ARDS. Methods A total of 11 patients undergoing vvECMO due to COVID-19 ARDS at the Medical University of Vienna, who received no concurrent corticosteroid therapy, were retrospectively included in this study. We analysed the concentrations of cortisol, aldosterone, and angiotensin (Ang) metabolites (Ang I-IV, Ang 1-7, and Ang 1-5) in serum via liquid chromatography/tandem mass spectrometry before, after 1 day, 1 week, and 2 weeks during vvECMO support and conducted correlation analyses between cortisol and parameters of disease severity. Results Cortisol concentrations appeared to be lowest after initiation of ECMO and progressively increased throughout the study period. Higher concentrations were related to disease severity and correlated markedly with interleukin-6, procalcitonin, pH, base excess, and albumin during the first day of ECMO. Fair correlations during the first day could be observed with calcium, duration of critical illness, and ECMO gas flow. Angiotensin metabolite concentrations were available in a subset of patients and indicated a more homogenous aldosterone response to plasma renin activity after 1 week of ECMO support. Conclusion Oxygenation support through vvECMO may lead to a partial recovery of adrenal function over time. In homogenous patient collectives, this novel approach might help to further determine the importance of adrenal stress response in ECMO and the influence of oxygenation support on CIRCI.
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Affiliation(s)
- Clemens Baumgartner
- Department of Internal Medicine III, Medical University of Vienna, Vienna, Austria
| | - Peter Wolf
- Department of Internal Medicine III, Medical University of Vienna, Vienna, Austria
| | - Alexander Hermann
- Department of Internal Medicine I, Medical University of Vienna, Vienna, Austria
| | - Sebastian König
- Department of Anaesthesia, Intensive Care Medicine and Pain Medicine, Medical University of Vienna, Vienna, Austria
| | - Mathias Maleczek
- Department of Anaesthesia, Intensive Care Medicine and Pain Medicine, Medical University of Vienna, Vienna, Austria
- Ludwig Boltzmann Institute for Digital Health and Patient Safety, Vienna, Austria
| | - Daniel Laxar
- Department of Anaesthesia, Intensive Care Medicine and Pain Medicine, Medical University of Vienna, Vienna, Austria
- Ludwig Boltzmann Institute for Digital Health and Patient Safety, Vienna, Austria
| | | | | | - Katharina Krenn
- Department of Anaesthesia, Intensive Care Medicine and Pain Medicine, Medical University of Vienna, Vienna, Austria
| | - Judith Schiefer
- Department of Anaesthesia, Intensive Care Medicine and Pain Medicine, Medical University of Vienna, Vienna, Austria
| | | | - Michael Krebs
- Department of Internal Medicine III, Medical University of Vienna, Vienna, Austria
| | - Martina Hermann
- Department of Anaesthesia, Intensive Care Medicine and Pain Medicine, Medical University of Vienna, Vienna, Austria
- Ludwig Boltzmann Institute for Digital Health and Patient Safety, Vienna, Austria
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4
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Laxar D, Eitenberger M, Maleczek M, Kaider A, Hammerle FP, Kimberger O. The influence of explainable vs non-explainable clinical decision support systems on rapid triage decisions: a mixed methods study. BMC Med 2023; 21:359. [PMID: 37726729 PMCID: PMC10510231 DOI: 10.1186/s12916-023-03068-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/12/2023] [Accepted: 09/05/2023] [Indexed: 09/21/2023] Open
Abstract
BACKGROUND During the COVID-19 pandemic, a variety of clinical decision support systems (CDSS) were developed to aid patient triage. However, research focusing on the interaction between decision support systems and human experts is lacking. METHODS Thirty-two physicians were recruited to rate the survival probability of 59 critically ill patients by means of chart review. Subsequently, one of two artificial intelligence systems advised the physician of a computed survival probability. However, only one of these systems explained the reasons behind its decision-making. In the third step, physicians reviewed the chart once again to determine the final survival probability rating. We hypothesized that an explaining system would exhibit a higher impact on the physicians' second rating (i.e., higher weight-on-advice). RESULTS The survival probability rating given by the physician after receiving advice from the clinical decision support system was a median of 4 percentage points closer to the advice than the initial rating. Weight-on-advice was not significantly different (p = 0.115) between the two systems (with vs without explanation for its decision). Additionally, weight-on-advice showed no difference according to time of day or between board-qualified and not yet board-qualified physicians. Self-reported post-experiment overall trust was awarded a median of 4 out of 10 points. When asked after the conclusion of the experiment, overall trust was 5.5/10 (non-explaining median 4 (IQR 3.5-5.5), explaining median 7 (IQR 5.5-7.5), p = 0.007). CONCLUSIONS Although overall trust in the models was low, the median (IQR) weight-on-advice was high (0.33 (0.0-0.56)) and in line with published literature on expert advice. In contrast to the hypothesis, weight-on-advice was comparable between the explaining and non-explaining systems. In 30% of cases, weight-on-advice was 0, meaning the physician did not change their rating. The median of the remaining weight-on-advice values was 50%, suggesting that physicians either dismissed the recommendation or employed a "meeting halfway" approach. Newer technologies, such as clinical reasoning systems, may be able to augment the decision process rather than simply presenting unexplained bias.
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Affiliation(s)
- Daniel Laxar
- Department of Anaesthesia, Intensive Care Medicine and Pain Medicine, Medical University of Vienna, Vienna, Austria
- Ludwig Boltzmann Institute Digital Health and Patient Safety, Ludwig Boltzmann Gesellschaft, Vienna, Austria
| | - Magdalena Eitenberger
- Ludwig Boltzmann Institute Digital Health and Patient Safety, Ludwig Boltzmann Gesellschaft, Vienna, Austria
| | - Mathias Maleczek
- Department of Anaesthesia, Intensive Care Medicine and Pain Medicine, Medical University of Vienna, Vienna, Austria.
- Ludwig Boltzmann Institute Digital Health and Patient Safety, Ludwig Boltzmann Gesellschaft, Vienna, Austria.
| | - Alexandra Kaider
- Center for Medical Data Science, Medical University of Vienna, Vienna, Austria
| | - Fabian Peter Hammerle
- Department of Anaesthesia, Intensive Care Medicine and Pain Medicine, Medical University of Vienna, Vienna, Austria
| | - Oliver Kimberger
- Department of Anaesthesia, Intensive Care Medicine and Pain Medicine, Medical University of Vienna, Vienna, Austria
- Ludwig Boltzmann Institute Digital Health and Patient Safety, Ludwig Boltzmann Gesellschaft, Vienna, Austria
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5
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Schneeweiss-Gleixner M, Scheiner B, Semmler G, Maleczek M, Laxar D, Hintersteininger M, Hermann M, Hermann A, Buchtele N, Schaden E, Staudinger T, Zauner C. Inadequate Energy Delivery Is Frequent among COVID-19 Patients Requiring ECMO Support and Associated with Increased ICU Mortality. Nutrients 2023; 15:2098. [PMID: 37432241 DOI: 10.3390/nu15092098] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2023] [Revised: 04/23/2023] [Accepted: 04/25/2023] [Indexed: 07/12/2023] Open
Abstract
BACKGROUND Patients receiving extracorporeal membrane oxygenation (ECMO) support are at high risk for malnutrition. There are currently no general nutrition guidelines for coronavirus disease 2019 (COVID-19) patients during ECMO therapy. METHODS We conducted a retrospective analysis of COVID-19 patients requiring venovenous ECMO support at a large tertiary hospital center. Nutrition goals were calculated using 25 kcal/kg body weight (BW)/day. Associations between nutrition support and outcome were evaluated using Kaplan-Meier and multivariable Cox regression analyses. RESULTS Overall, 102 patients accounted for a total of 2344 nutrition support days during ECMO therapy. On 40.6% of these days, nutrition goals were met. Undernutrition was found in 40.8%. Mean daily calorie delivery was 73.7% of calculated requirements, mean daily protein delivery was 0.7 g/kg BW/d. Mean energy intake of ≥70% of calculated targets was associated with significantly lower ICU mortality independently of age, disease severity at ECMO start and body mass index (adjusted hazard ratio: 0.372, p = 0.007). CONCLUSIONS Patients with a mean energy delivery of ≥70% of calculated targets during ECMO therapy had a better ICU survival compared to patients with unmet energy goals. These results indicate that adequate nutritional support needs to be a major priority in the treatment of COVID-19 patients requiring ECMO support.
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Affiliation(s)
- Mathias Schneeweiss-Gleixner
- Department of Medicine III, Clinical Division of Gastroenterology and Hepatology, Medical University of Vienna, 1090 Vienna, Austria
| | - Bernhard Scheiner
- Department of Medicine III, Clinical Division of Gastroenterology and Hepatology, Medical University of Vienna, 1090 Vienna, Austria
| | - Georg Semmler
- Department of Medicine III, Clinical Division of Gastroenterology and Hepatology, Medical University of Vienna, 1090 Vienna, Austria
| | - Mathias Maleczek
- Department of Anesthesia, Intensive Care Medicine and Pain Medicine, Medical University of Vienna, 1090 Vienna, Austria
- Ludwig Boltzmann Institute for Digital Health and Patient Safety, Medical University of Vienna, 1090 Vienna, Austria
| | - Daniel Laxar
- Department of Anesthesia, Intensive Care Medicine and Pain Medicine, Medical University of Vienna, 1090 Vienna, Austria
- Ludwig Boltzmann Institute for Digital Health and Patient Safety, Medical University of Vienna, 1090 Vienna, Austria
| | - Marlene Hintersteininger
- Department of Medicine III, Clinical Division of Gastroenterology and Hepatology, Medical University of Vienna, 1090 Vienna, Austria
| | - Martina Hermann
- Department of Anesthesia, Intensive Care Medicine and Pain Medicine, Medical University of Vienna, 1090 Vienna, Austria
- Ludwig Boltzmann Institute for Digital Health and Patient Safety, Medical University of Vienna, 1090 Vienna, Austria
| | - Alexander Hermann
- Intensive Care Unit 13i2, Department of Medicine I, Medical University of Vienna, 1090 Vienna, Austria
| | - Nina Buchtele
- Intensive Care Unit 13i2, Department of Medicine I, Medical University of Vienna, 1090 Vienna, Austria
| | - Eva Schaden
- Department of Anesthesia, Intensive Care Medicine and Pain Medicine, Medical University of Vienna, 1090 Vienna, Austria
- Ludwig Boltzmann Institute for Digital Health and Patient Safety, Medical University of Vienna, 1090 Vienna, Austria
| | - Thomas Staudinger
- Intensive Care Unit 13i2, Department of Medicine I, Medical University of Vienna, 1090 Vienna, Austria
| | - Christian Zauner
- Department of Medicine III, Clinical Division of Gastroenterology and Hepatology, Medical University of Vienna, 1090 Vienna, Austria
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Wiegele M, Laxar D, Schaden E, Baierl A, Maleczek M, Knöbl P, Hermann M, Hermann A, Zauner C, Gratz J. Subcutaneous Enoxaparin for Systemic Anticoagulation of COVID-19 Patients During Extracorporeal Life Support. Front Med (Lausanne) 2022; 9:879425. [PMID: 35899208 PMCID: PMC9309531 DOI: 10.3389/fmed.2022.879425] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2022] [Accepted: 06/22/2022] [Indexed: 12/11/2022] Open
Abstract
Background Extracorporeal membrane oxygenation, with an inherent requirement for anticoagulation to avoid circuit thrombosis, is a key element in the treatment of respiratory failure associated with COVID-19. Anticoagulation remains challenging, the standard of care being intravenous continuous administration of unfractionated heparin. Yet regimens vary. Some intensive care units in our center have successfully used enoxaparin subcutaneously in recent years and throughout the pandemic. Methods We retrospectively analyzed adult COVID-19 patients with respiratory failure who had been systemically anticoagulated using either enoxaparin or unfractionated heparin. The choice of anticoagulant therapy was based on the standard of the intensive care unit. Defined thromboembolic and hemorrhagic events were analyzed as study endpoints. Results Of 98 patients, 62 had received enoxaparin and 36 unfractionated heparin. All hazard ratios for the thromboembolic (3.43; 95% CI: 1.08–10.87; p = 0.04), hemorrhagic (2.58; 95% CI: 1.03–6.48; p = 0.04), and composite (2.86; 95% CI: 1.41–5.92; p = 0.007) endpoints favored enoxaparin, whose efficient administration was verified by peak levels of anti-factor Xa (median: 0.45 IU ml−1; IQR: 0.38; 0.56). Activated partial thromboplastin time as well as thrombin time differed significantly (both p<0.001) between groups mirroring the effect of unfractionated heparin. Conclusions This study demonstrates the successful use of subcutaneous enoxaparin for systemic anticoagulation in patients with COVID-19 during extracorporeal membrane oxygenation. Our findings are to be confirmed by future prospective, randomized, controlled trials.
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Affiliation(s)
- Marion Wiegele
- Department of Anesthesia, Intensive Care Medicine and Pain Medicine, Medical University of Vienna, Vienna, Austria
| | - Daniel Laxar
- Ludwig Boltzmann Institute Digital Health and Patient Safety, Medical University of Vienna, Vienna, Austria
| | - Eva Schaden
- Department of Anesthesia, Intensive Care Medicine and Pain Medicine, Medical University of Vienna, Vienna, Austria.,Ludwig Boltzmann Institute Digital Health and Patient Safety, Medical University of Vienna, Vienna, Austria
| | - Andreas Baierl
- Department of Statistics and Operations Research University of Vienna, Vienna, Austria
| | - Mathias Maleczek
- Department of Anesthesia, Intensive Care Medicine and Pain Medicine, Medical University of Vienna, Vienna, Austria.,Ludwig Boltzmann Institute Digital Health and Patient Safety, Medical University of Vienna, Vienna, Austria
| | - Paul Knöbl
- Department of Medicine I, Medical University of Vienna, Vienna, Austria
| | - Martina Hermann
- Department of Anesthesia, Intensive Care Medicine and Pain Medicine, Medical University of Vienna, Vienna, Austria.,Ludwig Boltzmann Institute Digital Health and Patient Safety, Medical University of Vienna, Vienna, Austria
| | - Alexander Hermann
- Department of Medicine I, Medical University of Vienna, Vienna, Austria
| | - Christian Zauner
- Department of Medicine III, Medical University of Vienna, Vienna, Austria
| | - Johannes Gratz
- Department of Anesthesia, Intensive Care Medicine and Pain Medicine, Medical University of Vienna, Vienna, Austria
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7
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Maleczek M, Schebesta K, Hamp T, Burger AL, Pezawas T, Krammel M, Roessler B. ST-T segment changes in prehospital emergency physicians in the field: a prospective observational trial. Scand J Trauma Resusc Emerg Med 2022; 30:47. [PMID: 35841049 PMCID: PMC9288087 DOI: 10.1186/s13049-022-01033-1] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2022] [Accepted: 06/30/2022] [Indexed: 12/03/2022] Open
Abstract
Aims Due to time-critical decision-making, physical strain and the uncontrolled environment, prehospital emergency management is frequently associated with high levels of stress in medical personnel. Stress has been known to cause ischemia like changes in electrocardiograms (ECGs), including arrhythmias and deviations in ST-T segments. There is a lack of knowledge regarding the occurrence of changes in ST-T segments in prehospital emergency physicians. We hypothesized that ST-T segment deviations occur in prehospital emergency physicians in the field.
Methods In this prospective observational trial, ST-T segments of emergency physicians were recorded using 12-lead Holter ECGs. The primary outcome parameter was defined as the incidence of ST-T segment changes greater than 0.1 mV in two corresponding leads for more than 30 s per 100 rescue missions. The secondary outcomes included T-wave inversions and ST-segment changes shorter than 30 s or smaller than 0.1 mV. Surrogate parameters of stress were measured using the NASA-Task Load Index and cognitive appraisal, and their correlation with ST-T segment changes were also assessed. Results Data from 20 physicians in 36 shifts (18 days, 18 nights) including 208 missions were analysed. Seventy percent of previously healthy emergency physicians had at least one ECG abnormality; the mean duration of these changes was 30 s. Significantly more missions with ECG changes were found during night than day shifts (39 vs. 17%, p < 0.001). Forty-nine ECG changes occurred between missions. No ST-T segment changes > 30 s and > 0.1 mV were found. Two ST-T segment changes < 30 s or < 0.1 mV (each during missions) and 122 episodes of T-wave inversions (74 during missions) were identified. ECG changes were found to be associated with alarms when asleep and NASA task load index. Conclusion ECG changes are frequent and occur in most healthy prehospital emergency physicians. Even when occurring for less than 30 s, such changes are important signs for high levels of stress. The long-term impact of these changes needs further investigation. Trial registration The trial was registered at ClinicalTrials.gov (NCT04003883) on 1.7.2019: https://clinicaltrials.gov/ct2/show/NCT04003883?term=emergency+physician&rank=2
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Affiliation(s)
- Mathias Maleczek
- Medical Simulation and Emergency Management Research Group, Department of Anaesthesia, Intensive Care Medicine and Pain Medicine, Medical University of Vienna, Waehringer Guertel 18-20, 1090, Vienna, Austria.,Academic Simulation Center of Vienna, Vienna, Austria
| | - Karl Schebesta
- Medical Simulation and Emergency Management Research Group, Department of Anaesthesia, Intensive Care Medicine and Pain Medicine, Medical University of Vienna, Waehringer Guertel 18-20, 1090, Vienna, Austria. .,Academic Simulation Center of Vienna, Vienna, Austria.
| | - Thomas Hamp
- Medical Simulation and Emergency Management Research Group, Department of Anaesthesia, Intensive Care Medicine and Pain Medicine, Medical University of Vienna, Waehringer Guertel 18-20, 1090, Vienna, Austria
| | - Achim Leo Burger
- Department of Medicine II, Division of Cardiology, Medical University of Vienna, Vienna, Austria
| | - Thomas Pezawas
- Department of Medicine II, Division of Cardiology, Medical University of Vienna, Vienna, Austria
| | - Mario Krammel
- Emergency Medical Service Vienna, Vienna, Austria.,PULS - Austrian Cardiac Arrest Awareness Association, Vienna, Austria
| | - Bernhard Roessler
- Medical Simulation and Emergency Management Research Group, Department of Anaesthesia, Intensive Care Medicine and Pain Medicine, Medical University of Vienna, Waehringer Guertel 18-20, 1090, Vienna, Austria.,Academic Simulation Center of Vienna, Vienna, Austria
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8
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Scheriau G, Weng R, Lassnigg A, Maleczek M, Zimprich F, Matilla J, Moser B, Bernardi MH. Perioperative management of patients with myasthenia gravis undergoing robotic-assisted thymectomy – a retrospective analysis and clinical evaluation. J Cardiothorac Vasc Anesth 2022; 36:3806-3813. [DOI: 10.1053/j.jvca.2022.05.024] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/10/2022] [Revised: 05/10/2022] [Accepted: 05/18/2022] [Indexed: 11/11/2022]
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9
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Hermann M, Hafner C, Scharner V, Hribersek M, Maleczek M, Schmid A, Schaden E, Willschke H, Hamp T. Remote real-time supervision of prehospital point-of-care ultrasound: a feasibility study. Scand J Trauma Resusc Emerg Med 2022; 30:23. [PMID: 35331304 PMCID: PMC8944068 DOI: 10.1186/s13049-021-00985-0] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2021] [Accepted: 12/07/2021] [Indexed: 12/02/2022] Open
Abstract
Background Although prehospital point-of-care ultrasound (POCUS) is gaining in importance, its rapid interpretation remains challenging in prehospital emergency situations. The technical development of remote real-time supervision potentially offers the possibility to support emergency medicine providers during prehospital emergency ultrasound. The aim of this study was to assess the feasibility of live data transmission and supervision of prehospital POCUS in an urban environment and so to improve patients’ safety. Methods Emergency doctors with moderate ultrasound experience performed prehospital POCUS in emergency cases (n = 24) such as trauma, acute dyspnea or cardiac shock using the portable ultrasound device Lumify™. The ultrasound examination was remotely transmitted to an emergency ultrasound expert in the clinic for real-time supervision via a secure video and audio connection. Technical feasibility as well as quality of communication and live stream were analysed. Results Prehospital POCUS with remote real-time supervision was successfully performed in 17 patients (71%). In 3 cases, the expert was not available on time and in 1 case remote data transmission was not possible due to connection problems. In 3 cases tele-supervision was restricted to video only and no verbal communication was possible via the device itself due to power saving mode of the tablet. Conclusion Remote real-time supervision of prehospital POCUS in an urban environment is feasible most of the time with excellent image and communication quality. Trial registration: ClinicalTrials Number NCT04612816. Supplementary Information The online version contains supplementary material available at 10.1186/s13049-021-00985-0.
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Affiliation(s)
- Martina Hermann
- Department of Anaesthesia, General Intensive Care and Pain Medicine, Medical University of Vienna, Waehringer Guertel 18-20, 1090, Vienna, Austria.,Ludwig Boltzmann Institute for Digital Health and Patient Safety, Vienna, Austria
| | - Christina Hafner
- Department of Anaesthesia, General Intensive Care and Pain Medicine, Medical University of Vienna, Waehringer Guertel 18-20, 1090, Vienna, Austria.,Ludwig Boltzmann Institute for Digital Health and Patient Safety, Vienna, Austria
| | - Vincenz Scharner
- Ludwig Boltzmann Institute for Digital Health and Patient Safety, Vienna, Austria
| | - Mojca Hribersek
- Ludwig Boltzmann Institute for Digital Health and Patient Safety, Vienna, Austria
| | - Mathias Maleczek
- Department of Anaesthesia, General Intensive Care and Pain Medicine, Medical University of Vienna, Waehringer Guertel 18-20, 1090, Vienna, Austria.,Ludwig Boltzmann Institute for Digital Health and Patient Safety, Vienna, Austria
| | - Andreas Schmid
- Department of Anaesthesia, General Intensive Care and Pain Medicine, Medical University of Vienna, Waehringer Guertel 18-20, 1090, Vienna, Austria
| | - Eva Schaden
- Department of Anaesthesia, General Intensive Care and Pain Medicine, Medical University of Vienna, Waehringer Guertel 18-20, 1090, Vienna, Austria.,Ludwig Boltzmann Institute for Digital Health and Patient Safety, Vienna, Austria
| | - Harald Willschke
- Department of Anaesthesia, General Intensive Care and Pain Medicine, Medical University of Vienna, Waehringer Guertel 18-20, 1090, Vienna, Austria.,Ludwig Boltzmann Institute for Digital Health and Patient Safety, Vienna, Austria
| | - Thomas Hamp
- Department of Anaesthesia, General Intensive Care and Pain Medicine, Medical University of Vienna, Waehringer Guertel 18-20, 1090, Vienna, Austria.
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10
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Bologheanu R, Lichtenegger P, Maleczek M, Laxar D, Schaden E, Kimberger O. A retrospective study of sugammadex for reversal of neuromuscular blockade induced by rocuronium in critically ill patients in the ICU. Sci Rep 2022; 12:897. [PMID: 35042888 PMCID: PMC8766455 DOI: 10.1038/s41598-022-04818-7] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2021] [Accepted: 12/22/2021] [Indexed: 12/23/2022] Open
Abstract
Sugammadex has been approved for reversal of neuromuscular blockade by vecuronium and rocuronium in adults undergoing surgery. Although widely used in the operating room, sugammadex has not been investigated in the intensive care unit setting. This study aimed to evaluate the use of sugammadex in critically ill patients with a focus on known drug-related adverse reactions. In this single-center, retrospective, observational study, 91 critically ill patients who were administered sugammadex while in the ICU were evaluated. Electronic health records were reviewed, and baseline data, as well as indication and incidence of complications possibly related to sugammadex, were retrospectively collected. The most common procedures requiring neuromuscular blockade followed by reversal with sugammadex were bronchoscopy, percutaneous dilatative tracheostomy, and percutaneous endoscopic gastrostomy. Within 2 h following administration of sugammadex, skin rash and use of antihistamines were reported in 4 patients (4.4%) in total; bradycardia was observed in 9 patients (9.9%), and respiratory adverse events were described in 3 patients (3.3%). New-onset bleeding up to 24 h after sugammadex was reported in 7 patients (7.7%), 3of whom received transfusions of packed red blood cells. Sugammadex was well tolerated in critically ill patients and could be considered for reversal of neuromuscular blockade in this population. Larger prospective studies are required to determine the safety profile and evaluate the potential benefit and indications of sugammadex in the critical care setting.
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Affiliation(s)
- Răzvan Bologheanu
- Department of Anaesthesiology and General Intensive Care, Medical University of Vienna, Vienna, Austria.
| | - Paul Lichtenegger
- Department of Anaesthesiology and General Intensive Care, Medical University of Vienna, Vienna, Austria
| | - Mathias Maleczek
- Department of Anaesthesiology and General Intensive Care, Medical University of Vienna, Vienna, Austria
- Ludwig Boltzmann Institute for Digital Health and Patient Safety, Vienna, Austria
| | - Daniel Laxar
- Ludwig Boltzmann Institute for Digital Health and Patient Safety, Vienna, Austria
| | - Eva Schaden
- Department of Anaesthesiology and General Intensive Care, Medical University of Vienna, Vienna, Austria
- Ludwig Boltzmann Institute for Digital Health and Patient Safety, Vienna, Austria
| | - Oliver Kimberger
- Department of Anaesthesiology and General Intensive Care, Medical University of Vienna, Vienna, Austria
- Ludwig Boltzmann Institute for Digital Health and Patient Safety, Vienna, Austria
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11
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Hermann M, Laxar D, Krall C, Hafner C, Herzog O, Kimberger O, Koenig S, Kraft F, Maleczek M, Markstaller K, Robak O, Rössler B, Schaden E, Schellongowski P, Schneeweiss-Gleixner M, Staudinger T, Ullrich R, Wiegele M, Willschke H, Zauner C, Hermann A. Duration of invasive mechanical ventilation prior to extracorporeal membrane oxygenation is not associated with survival in acute respiratory distress syndrome caused by coronavirus disease 2019. Ann Intensive Care 2022; 12:6. [PMID: 35024972 PMCID: PMC8755897 DOI: 10.1186/s13613-022-00980-3] [Citation(s) in RCA: 24] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2021] [Accepted: 01/02/2022] [Indexed: 01/16/2023] Open
Abstract
Background Duration of invasive mechanical ventilation (IMV) prior to extracorporeal membrane oxygenation (ECMO) affects outcome in acute respiratory distress syndrome (ARDS). In coronavirus disease 2019 (COVID-19) related ARDS, the role of pre-ECMO IMV duration is unclear. This single-centre, retrospective study included critically ill adults treated with ECMO due to severe COVID-19-related ARDS between 01/2020 and 05/2021. The primary objective was to determine whether duration of IMV prior to ECMO cannulation influenced ICU mortality. Results During the study period, 101 patients (mean age 56 [SD ± 10] years; 70 [69%] men; median RESP score 2 [IQR 1–4]) were treated with ECMO for COVID-19. Sixty patients (59%) survived to ICU discharge. Median ICU length of stay was 31 [IQR 20.7–51] days, median ECMO duration was 16.4 [IQR 8.7–27.7] days, and median time from intubation to ECMO start was 7.7 [IQR 3.6–12.5] days. Fifty-three (52%) patients had a pre-ECMO IMV duration of > 7 days. Pre-ECMO IMV duration had no effect on survival (p = 0.95). No significant difference in survival was found when patients with a pre-ECMO IMV duration of < 7 days (< 10 days) were compared to ≥ 7 days (≥ 10 days) (p = 0.59 and p = 1.0). Conclusions The role of prolonged pre-ECMO IMV duration as a contraindication for ECMO in patients with COVID-19-related ARDS should be scrutinised. Evaluation for ECMO should be assessed on an individual and patient-centred basis. Supplementary Information The online version contains supplementary material available at 10.1186/s13613-022-00980-3.
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12
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Duma A, Maleczek M, Wagner C, Haslacher H, Szekeres T, Jaffe AS, Nagele P. NT-proBNP in young healthy adults undergoing non-cardiac surgery. Clin Biochem 2021; 96:38-42. [PMID: 34265286 DOI: 10.1016/j.clinbiochem.2021.07.009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2021] [Revised: 06/14/2021] [Accepted: 07/06/2021] [Indexed: 10/20/2022]
Abstract
OBJECTIVES N-terminal pro-brain natriuretic peptide (NT-proBNP), a standard marker for diagnosis and treatment guidance of heart failure, has previously been investigated in high-risk patients undergoing cardiac and non-cardiac surgery. However, the kinetics of NT-proBNP in healthy patients undergoing non-cardiac surgery are unknown. DESIGN & METHODS A secondary analysis of a prospective cohort study was conducted. NT-proBNP plasma concentrations were measured preoperatively, 2-6 h, and 18-30 h after surgery in 120 patients, 18-35 years, undergoing elective non-cardiac surgery. Reasons for non-inclusion: history or symptoms of cardiac disease, kidney disease, pulmonary embolism, thrombosis, stroke, diabetes, head or chest trauma, pregnancy, incomplete panel of perioperative NT-proBNP plasma samples. Absolute and relative change of NT-proBNP plasma concentration were calculated. Changes between preoperative, 2-6 h, and 18-30 h (POD 1) NT-proBNP values, and of within-patient change in NT-proBNP were analyzed. RESULTS In 95 patients, NT-proBNP plasma concentrations (median [IQR]) were 8 [5-26] pg/mL at baseline, 17 [5-53] pg/mL 2-6 h, and 42 [11-86] pg/mL 18-30 h after surgery. Absolute and relative NT-proBNP increase after surgery was 32 [5-74] pg/mL and 196% [61 - 592%] compared to baseline. NT-proBNP elevation above the age- and sex-specific reference range was observed in 6/95 (6%) patients prior to surgery and in 39/95 (41%) patients after surgery. CONCLUSIONS Even after uncomplicated surgery and postoperative period, NT-proBNP concentrations markedly increase in otherwise healthy adult patients. The aetiology of postoperative NT-proBNP increase is currently unknown and may be multifactorial.
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Affiliation(s)
- Andreas Duma
- Dept. of Anesthesiology and Intensive Care, Medical University of Vienna, Vienna, Austria
| | - Mathias Maleczek
- Dept. of Anesthesiology and Intensive Care, Medical University of Vienna, Vienna, Austria
| | - Claus Wagner
- Dept. of Anesthesiology and Intensive Care, Medical University of Vienna, Vienna, Austria
| | - Helmuth Haslacher
- Dept. of Laboratory Medicine, Medical University of Vienna, Vienna, Austria
| | - Thomas Szekeres
- Dept. of Laboratory Medicine, Medical University of Vienna, Vienna, Austria
| | - Allan S Jaffe
- Cardiovascular Division, Dept. of Internal Medicine and Division of Core Clinical Laboratory, Dept. of Laboratory Medicine and Pathology, Mayo Clinic and Medical School, Rochester, MN, United States
| | - Peter Nagele
- Dept of Anesthesia and Critical Care, University of Chicago Medicine, IL, United States.
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13
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Maleczek M, Rubi S, Fohringer C, Scheriau G, Meyer E, Uray T, Duma A. Medical care at a mass gathering music festival : Retrospective study over 7 years (2011-2017). Wien Klin Wochenschr 2021; 134:324-331. [PMID: 33900474 PMCID: PMC9023407 DOI: 10.1007/s00508-021-01856-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2021] [Accepted: 03/18/2021] [Indexed: 11/05/2022]
Abstract
Background Knowledge about longitudinal changes in epidemiological data at mass gathering events is sparse. The goal of this study was to determine and compare the type, severity and frequency of illnesses at a large music festival over 7 consecutive years (2011–2017). Methods Prospectively collected data from the rescue operation protocols of an Austrian music festival were retrieved and analyzed. Patient presentation rates (PPR) and transport to hospital rates (TTHR) were calculated and compared between years. Linear regression was used to investigate the association between (a) total number of visitors and number of patient presentations, and (b) environmental factors and temperature related medical emergencies. A descriptive analysis of pertinent medical logistics management was performed. Results The median (minimum to maximum) PPR and TTHR were 12.01 (9.33 in 2016 to 20.86 in 2011) and 0.57 (0.40 in 2017 to 1.06 in 2013) per 1000 visitors, respectively. In linear regression models, no significant associations were found between the number of visitors and either the total number of patient presentations, NACA 1–2 or NACA 3–5 classified emergencies. Environmental temperature had a significant impact on heat related patient presentations (p < 0.001). Conclusion There were significant differences and a high variance in both PPR and TTHR over the years. Contrary to our expectations, the number of visitors did not predict the number of patient presentations. Ambient temperature was associated with the number of heat related emergencies but not with the number of cold related emergencies. Prevention strategies, such as the removal of insect nests, resulted in significantly fewer insect related emergencies.
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Affiliation(s)
- Mathias Maleczek
- Department of Anaesthesiology, Intensive Care Medicine and Pain Medicine, Medical University of Vienna, Waehringer Guertel 18-20/9i, 1090, Vienna, Austria
| | - Simon Rubi
- Department of Anaesthesiology, Intensive Care Medicine and Pain Medicine, Medical University of Vienna, Waehringer Guertel 18-20/9i, 1090, Vienna, Austria
| | | | - Georg Scheriau
- Department of Anaesthesiology, Intensive Care Medicine and Pain Medicine, Medical University of Vienna, Waehringer Guertel 18-20/9i, 1090, Vienna, Austria
| | - Elias Meyer
- Section for Medical Statistics, Center for Medical Statistics, Informatics, and Intelligent Systems (CeMSIIS), Medical University of Vienna, Vienna, Austria
| | - Thomas Uray
- Department of Emergency Medicine, Medical University of Vienna, Vienna, Austria
| | - Andreas Duma
- Department of Anaesthesiology, Intensive Care Medicine and Pain Medicine, Medical University of Vienna, Waehringer Guertel 18-20/9i, 1090, Vienna, Austria.
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14
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Gratz J, Wiegele M, Maleczek M, Herkner H, Schöchl H, Chwala E, Knöbl P, Schaden E. Risk of Clinically Relevant Venous Thromboembolism in Critically Ill Patients With COVID-19: A Systematic Review and Meta-Analysis. Front Med (Lausanne) 2021; 8:647917. [PMID: 33768106 PMCID: PMC7985162 DOI: 10.3389/fmed.2021.647917] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2020] [Accepted: 02/01/2021] [Indexed: 12/16/2022] Open
Abstract
Background: Early during the course of the ongoing COVID-19 pandemic, reports suggested alarmingly high incidences for thromboembolic events in critically ill patients with COVID-19. However, the clinical relevance of these events was not reported in several studies. Additionally, more recent research showed contradictory results and suggested substantially lower rates of venous thromboembolism. Thus, the aim of the present study was to summarize evidence on the incidence of clinically relevant venous thromboembolism (VTE)—defined as VTE excluding isolated subsegmental pulmonary embolism (PE) and distal deep vein thrombosis (DVT)—in adult critically ill patients with COVID-19. Methods: We performed a systematic review of studies reporting the incidence of clinically relevant PE and/or DVT in critically ill patients with COVID-19. Scientific reports published in the English language between January and October 2020 were included. We conducted a random-effects model meta-analysis to calculate incidence estimates of clinically relevant VTE and bleeding events. We also performed exploratory meta-regression and subgroup analyses of different diagnostic approaches and additional factors that possibly influenced the incidence of these outcomes. Results: Fifty-four articles (5,400 patients) fulfilled the predefined inclusion criteria, of which 41 had a high risk of bias. The majority of included patients were male, > 60 years, and overweight. Twenty-one studies reported the use of prophylactic doses of heparin. Pooled incidences for clinically relevant PE were estimated at 8% (95% CI, 4–11%), for proximal DVT at 14% (95% CI, 9–20%), and—after exclusion of studies with a high risk of bias—for the composite outcome of VTE at 18% (95% CI, 13–24%). Clinically relevant bleeding occurred at a rate of 6% (95% CI, 2–9%). Conclusions: We summarized currently available data on the rate of clinically relevant VTE in critically ill patients with COVID-19. Pooled incidence estimates were lower than those reported by previous review articles. In the absence of evidence-based anticoagulation guidelines for critically ill patients with COVID-19, the results of our study provide clinically important information for an individual risk-benefit assessment in this context. Registration: The study protocol was prospectively registered in PROSPERO on June 22, 2020 (CRD42020193353; https://www.crd.york.ac.uk/prospero).
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Affiliation(s)
- Johannes Gratz
- Department of Anesthesiology, Intensive Care Medicine and Pain Medicine, Medical University of Vienna, Vienna, Austria
| | - Marion Wiegele
- Department of Anesthesiology, Intensive Care Medicine and Pain Medicine, Medical University of Vienna, Vienna, Austria
| | - Mathias Maleczek
- Department of Anesthesiology, Intensive Care Medicine and Pain Medicine, Medical University of Vienna, Vienna, Austria
| | - Harald Herkner
- Department of Emergency Medicine, Medical University of Vienna, Vienna, Austria
| | - Herbert Schöchl
- Department of Anaesthesiology and Intensive Care Medicine, AUVA Trauma Centre Salzburg, Academic Teaching Hospital of the Paracelsus Medical University, Salzburg, Austria.,Ludwig Boltzmann Institute for Experimental and Clinical Traumatology, AUVA Trauma Research Centre, Vienna, Austria
| | - Eva Chwala
- University Library, Medical University of Vienna, Vienna, Austria
| | - Paul Knöbl
- Division of Hematology and Hemostasis, Department of Medicine I, Medical University of Vienna, Vienna, Austria
| | - Eva Schaden
- Department of Anesthesiology, Intensive Care Medicine and Pain Medicine, Medical University of Vienna, Vienna, Austria
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15
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Bologheanu R, Maleczek M, Laxar D, Kimberger O. Outcomes of non-COVID-19 critically ill patients during the COVID-19 pandemic : A retrospective propensity score-matched analysis. Wien Klin Wochenschr 2021; 133:942-950. [PMID: 33909109 PMCID: PMC8080479 DOI: 10.1007/s00508-021-01857-4] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2021] [Accepted: 03/18/2021] [Indexed: 01/28/2023]
Abstract
BACKGROUND Coronavirus disease 2019 (COVID-19) disrupts routine care and alters treatment pathways in every medical specialty, including intensive care medicine, which has been at the core of the pandemic response. The impact of the pandemic is inevitably not limited to patients with severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infection and their outcomes; however, the impact of COVID-19 on intensive care has not yet been analyzed. METHODS The objective of this propensity score-matched study was to compare the clinical outcomes of non-COVID-19 critically ill patients with the outcomes of prepandemic patients. Critically ill, non-COVID-19 patients admitted to the intensive care unit (ICU) during the first wave of the pandemic were matched with patients admitted in the previous year. Mortality, length of stay, and rate of readmission were compared between the two groups after matching. RESULTS A total of 211 critically ill SARS-CoV‑2 negative patients admitted between 13 March 2020 and 16 May 2020 were matched to 211 controls, selected from a matching pool of 1421 eligible patients admitted to the ICU in 2019. After matching, the outcomes were not significantly different between the two groups: ICU mortality was 5.2% in 2019 and 8.5% in 2020, p = 0.248, while intrahospital mortality was 10.9% in 2019 and 14.2% in 2020, p = 0.378. The median ICU length of stay was similar in 2019: 4 days (IQR 2-6) compared to 2020: 4 days (IQR 2-7), p = 0.196. The rate of ICU readmission was 15.6% in 2019 and 10.9% in 2020, p = 0.344. CONCLUSION In this retrospective single center study, mortality, ICU length of stay, and rate of ICU readmission did not differ significantly between patients admitted to the ICU during the implementation of hospital-wide COVID-19 contingency planning and patients admitted to the ICU before the pandemic.
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Affiliation(s)
- Răzvan Bologheanu
- Department of Anaesthesiology and General Intensive Care, Medical University of Vienna, Vienna, Austria
| | - Mathias Maleczek
- Department of Anaesthesiology and General Intensive Care, Medical University of Vienna, Vienna, Austria
| | - Daniel Laxar
- Ludwig Boltzmann Institute for Digital Health and Patient Safety, Vienna, Austria
| | - Oliver Kimberger
- Department of Anaesthesiology and General Intensive Care, Medical University of Vienna, Vienna, Austria
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16
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Kletecka-Pulker M, Mondal H, Wang D, Parra RG, Maigoro AY, Lee S, Garg T, Mulholland EJ, Devkota HP, Konwar B, Patnaik SS, Lordan R, Nawaz FA, Tsagkaris C, Rayan RA, Louka AM, De R, Badhe P, Schaden E, Willschke H, Maleczek M, Boyina HK, Khalid GM, Uddin MS, Sanusi, Khan J, Odimegwu JI, Yeung AWK, Akram F, Sai CS, Bucher S, Paswan SK, Singla RK, Shen B, Di Lonardo S, Tosevska A, Simal-Gandara J, Zec M, González-Burgos E, Habijan M, Battino M, Giampieri F, Tikhonov A, Cianciosi D, Forbes-Hernandez TY, Quiles JL, Mezzetti B, Babiaka SB, Ahmed ME, Piccard P, Urquiza MS, Depew JR, Schultz F, Sur D, Pai SR, Găman MA, Cenanovic M, Tzvetkov NT, Tripathi SK, Kharat KR, Garcia-Sosa AT, Sieber S, Atanasov AG. Impacts of biomedical hashtag-based Twitter campaign: #DHPSP utilization for promotion of open innovation in digital health, patient safety, and personalized medicine. Current Research in Biotechnology 2021. [DOI: 10.1016/j.crbiot.2021.04.004] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
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17
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Rössler B, Goschin J, Maleczek M, Piringer F, Thell R, Mittlböck M, Schebesta K. Providing the best chest compression quality: Standard CPR versus chest compressions only in a bystander resuscitation model. PLoS One 2020; 15:e0228702. [PMID: 32053634 PMCID: PMC7017996 DOI: 10.1371/journal.pone.0228702] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2019] [Accepted: 01/21/2020] [Indexed: 11/18/2022] Open
Abstract
Aim of the study Bystander-initiated basic life support (BLS) for the treatment of prehospital cardiac arrest increases survival but is frequently not performed due to fear and a lack of knowledge. A simple flowchart can improve motivation and the quality of performance. Furthermore, guidelines do recommend a chest compression (CC)-only algorithm for dispatcher-assisted bystander resuscitation, which may lead to increased fatigue and a loss of compression depth. Consequently, we wanted to test the hypothesis that CCs are more correctly delivered in a flowchart-assisted standard resuscitation algorithm than in a CC-only algorithm. Methods With the use of a manikin model, 84 laypersons were randomized to perform either flowchart-assisted standard resuscitation or CC-only resuscitation for 5min. The primary outcome was the total number of CCs. Results The total number of correct CCs did not significantly differ between the CC-only group and the standard group (63 [±81] vs. 79 [±86]; p = 0.394; 95% CI of difference: 21–53). The total hand-off time was significantly lower in the CC-only group than in the standard BLS group. The relative number of correct CCs (the fraction of the total number of CCs achieving 5-6cm) and the level of exhaustion after BLS did not significantly differ between the groups. Conclusion Standard BLS did not lead to an increase in correctly delivered CCs compared to CC-only resuscitation and exhibited significantly more hand-off time. The low rate of CCs in both groups indicates the need for an increased focus on performance during BLS training.
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Affiliation(s)
- Bernhard Rössler
- Medical Simulation and Emergency Management Research Group, University Department of Anaesthesia, Intensive Care Medicine and Pain Medicine, Medical University of Vienna, Vienna, Austria
- Academic Simulation Center Vienna, Medical University of Vienna and Vienna Hospital Association, Vienna, Austria
| | - Julius Goschin
- Medical Simulation and Emergency Management Research Group, University Department of Anaesthesia, Intensive Care Medicine and Pain Medicine, Medical University of Vienna, Vienna, Austria
| | - Mathias Maleczek
- Medical Simulation and Emergency Management Research Group, University Department of Anaesthesia, Intensive Care Medicine and Pain Medicine, Medical University of Vienna, Vienna, Austria
- St. John Ambulance, Vienna, Austria
| | | | | | - Martina Mittlböck
- Center for Medical Statistics, Informatics, and Intelligent Systems, Medical University of Vienna, Medical University of Vienna, Vienna, Austria
| | - Karl Schebesta
- Medical Simulation and Emergency Management Research Group, University Department of Anaesthesia, Intensive Care Medicine and Pain Medicine, Medical University of Vienna, Vienna, Austria
- Academic Simulation Center Vienna, Medical University of Vienna and Vienna Hospital Association, Vienna, Austria
- * E-mail:
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18
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Duma A, Wagner C, Titz M, Maleczek M, Hüpfl M, Weihs VB, Samaha E, Herkner H, Szekeres T, Mittlboeck M, Scott MG, Jaffe AS, Nagele P. High-sensitivity cardiac troponin T in young, healthy adults undergoing non-cardiac surgery. Br J Anaesth 2017; 120:291-298. [PMID: 29406178 DOI: 10.1016/j.bja.2017.09.001] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2017] [Revised: 09/18/2017] [Accepted: 09/24/2017] [Indexed: 11/15/2022] Open
Abstract
BACKGROUND It is unclear if isolated postoperative cardiac-troponin elevation, often referred to as myocardial injury, represents a pathological event, as control studies in otherwise healthy adults are lacking. METHODS In this single-centre prospective observational cohort study, serial high-sensitivity cardiac troponin T (hscTnT) plasma concentrations were obtained from young, healthy adults undergoing elective orthopaedic surgery at three time points: before operation, 2-6 h, and 18-30 h after surgery. End points were hscTnT increases after surgery: ≥20% (exceeding analytical variability), ≥50% (exceeding short-term biological variability), and ≥85% (exceeding long-term biological variability). The secondary end point was myocardial injury, defined as new postoperative hscTnT elevation >99th % upper reference limit (URL) (women >10 ng litre-1; men >15 ng litre-1). RESULTS Amongst the study population (n=95), no hscTnT increase ≥20% was detected in 68 patients (73%). A hscTnT increase between 20% and 49% was observed in 17 patients (18%), 50-84% in seven patients (7%), and ≥85% in three patients (3%). Twenty patients (21%) had an absolute ΔhscTnT between 0 and 2 ng litre-1, 12 patients (13%) between 2 and 4 ng litre-1, three patients between 4 and 6 ng litre-1, and one patient (1%) between 6 and 8 ng litre-1. Myocardial injury (new hscTnT elevation >99th%) was diagnosed in one patient (1%). The median hscTnT concentrations did not increase after operation, and were 4 (3.9-5, inter-quartile range) ng litre-1 at baseline, 4 (3.9-5) ng litre-1 at 2-6 h after surgery, and 4 (3.9-5) ng litre-1 on postoperative day 1. CONCLUSIONS One in four young adult patients without known cardiovascular disease developed a postoperative hscTnT increase, but without exceeding the 99th% URL and without evidence of myocardial ischaemia. These results may have important ramifications for the concept of postoperative myocardial injury, as they suggest that, in some patients, postoperative cardiac-troponin increases may be the result of a normal physiological process in the surgical setting. CLINICAL TRIAL REGISTRATION NCT 02394288.
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Affiliation(s)
- A Duma
- Department of Anesthesiology and Intensive Care, Medical University of Vienna, Vienna, Austria
| | - C Wagner
- Department of Anesthesiology and Intensive Care, Medical University of Vienna, Vienna, Austria
| | - M Titz
- Department of Anesthesiology and Intensive Care, Medical University of Vienna, Vienna, Austria
| | - M Maleczek
- Department of Anesthesiology and Intensive Care, Medical University of Vienna, Vienna, Austria
| | - M Hüpfl
- Department of Anesthesiology and Intensive Care, Medical University of Vienna, Vienna, Austria
| | - V B Weihs
- Department of Anesthesiology and Intensive Care, Medical University of Vienna, Vienna, Austria
| | - E Samaha
- Department of Internal Medicine, Medical University of Vienna, Vienna, Austria; Department of Anesthesiology, Washington University in St Louis, St Louis, MO, USA
| | - H Herkner
- Department of Emergency Medicine, Medical University of Vienna, Vienna, Austria
| | - T Szekeres
- Department of Laboratory Medicine, Medical University of Vienna, Vienna, Austria
| | - M Mittlboeck
- Center for Medical Statistics, Informatics, and Intelligent Systems, Medical University of Vienna, Vienna, Austria
| | - M G Scott
- Department of Pathology and Immunology, Washington University in St Louis, St Louis, MO, USA
| | - A S Jaffe
- Cardiovascular Division, Department of Internal Medicine, Mayo Clinic School of Medicine, Rochester, MN, USA; Division of Clinical Core Laboratory Services, Department of Laboratory Medicine and Pathology, Mayo Clinic School of Medicine, Rochester, MN, USA
| | - P Nagele
- Department of Anesthesiology, Washington University in St Louis, St Louis, MO, USA.
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