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1. Dynamics of disease characteristics and clinical management of critically ill COVID-19 patients over the time course of the pandemic: an analysis of the prospective, international, multicentre RISC-19-ICU registry

Author

Wendel-Garcia, P, Moser, A, Jeitziner, M, Aguirre-Bermeo, H, Arias-Sanchez, P, Apolo, J, Roche-Campo, F, Franch-Llasat, D, Kleger, G, Schrag, C, Pietsch, U, Filipovic, M, David, S, Stahl, K, Bouaoud, S, Ouyahia, A, Fodor, P, Locher, P, Siegemund, M, Zellweger, N, Cereghetti, S, Schott, P, Gangitano, G, Wu, M, Alfaro-Farias, M, Vizmanos-Lamotte, G, Ksouri, H, Gehring, N, Rezoagli, E, Turrini, F, Lozano-Gomez, H, Carsetti, A, Rodriguez-Garcia, R, Yuen, B, Weber, A, Castro, P, Escos-Orta, J, Dullenkopf, A, Martin-Delgado, M, Aslanidis, T, Perez, M, Hillgaertner, F, Ceruti, S, Franchitti Laurent, M, Marrel, J, Colombo, R, Laube, M, Fogagnolo, A, Studhalter, M, Wengenmayer, T, Gamberini, E, Buerkle, C, Buehler, P, Keiser, S, Elhadi, M, Montomoli, J, Guerci, P, Fumeaux, T, Schuepbach, R, Jakob, S, Que, Y, Hilty, M, Wendel-Garcia P. D., Moser A., Jeitziner M. -M., Aguirre-Bermeo H., Arias-Sanchez P., Apolo J., Roche-Campo F., Franch-Llasat D., Kleger G. -R., Schrag C., Pietsch U., Filipovic M., David S., Stahl K., Bouaoud S., Ouyahia A., Fodor P., Locher P., Siegemund M., Zellweger N., Cereghetti S., Schott P., Gangitano G., Wu M. A., Alfaro-Farias M., Vizmanos-Lamotte G., Ksouri H., Gehring N., Rezoagli E., Turrini F., Lozano-Gomez H., Carsetti A., Rodriguez-Garcia R., Yuen B., Weber A. B., Castro P., Escos-Orta J. O., Dullenkopf A., Martin-Delgado M. C., Aslanidis T., Perez M. -H., Hillgaertner F., Ceruti S., Franchitti Laurent M., Marrel J., Colombo R., Laube M., Fogagnolo A., Studhalter M., Wengenmayer T., Gamberini E., Buerkle C., Buehler P. K., Keiser S., Elhadi M., Montomoli J., Guerci P., Fumeaux T., Schuepbach R. A., Jakob S. M., Que Y. -A., Hilty M. P., Wendel-Garcia, P, Moser, A, Jeitziner, M, Aguirre-Bermeo, H, Arias-Sanchez, P, Apolo, J, Roche-Campo, F, Franch-Llasat, D, Kleger, G, Schrag, C, Pietsch, U, Filipovic, M, David, S, Stahl, K, Bouaoud, S, Ouyahia, A, Fodor, P, Locher, P, Siegemund, M, Zellweger, N, Cereghetti, S, Schott, P, Gangitano, G, Wu, M, Alfaro-Farias, M, Vizmanos-Lamotte, G, Ksouri, H, Gehring, N, Rezoagli, E, Turrini, F, Lozano-Gomez, H, Carsetti, A, Rodriguez-Garcia, R, Yuen, B, Weber, A, Castro, P, Escos-Orta, J, Dullenkopf, A, Martin-Delgado, M, Aslanidis, T, Perez, M, Hillgaertner, F, Ceruti, S, Franchitti Laurent, M, Marrel, J, Colombo, R, Laube, M, Fogagnolo, A, Studhalter, M, Wengenmayer, T, Gamberini, E, Buerkle, C, Buehler, P, Keiser, S, Elhadi, M, Montomoli, J, Guerci, P, Fumeaux, T, Schuepbach, R, Jakob, S, Que, Y, Hilty, M, Wendel-Garcia P. D., Moser A., Jeitziner M. -M., Aguirre-Bermeo H., Arias-Sanchez P., Apolo J., Roche-Campo F., Franch-Llasat D., Kleger G. -R., Schrag C., Pietsch U., Filipovic M., David S., Stahl K., Bouaoud S., Ouyahia A., Fodor P., Locher P., Siegemund M., Zellweger N., Cereghetti S., Schott P., Gangitano G., Wu M. A., Alfaro-Farias M., Vizmanos-Lamotte G., Ksouri H., Gehring N., Rezoagli E., Turrini F., Lozano-Gomez H., Carsetti A., Rodriguez-Garcia R., Yuen B., Weber A. B., Castro P., Escos-Orta J. O., Dullenkopf A., Martin-Delgado M. C., Aslanidis T., Perez M. -H., Hillgaertner F., Ceruti S., Franchitti Laurent M., Marrel J., Colombo R., Laube M., Fogagnolo A., Studhalter M., Wengenmayer T., Gamberini E., Buerkle C., Buehler P. K., Keiser S., Elhadi M., Montomoli J., Guerci P., Fumeaux T., Schuepbach R. A., Jakob S. M., Que Y. -A., and Hilty M. P.

Abstract

BACKGROUND: It remains elusive how the characteristics, the course of disease, the clinical management and the outcomes of critically ill COVID-19 patients admitted to intensive care units (ICU) worldwide have changed over the course of the pandemic. METHODS: Prospective, observational registry constituted by 90 ICUs across 22 countries worldwide including patients with a laboratory-confirmed, critical presentation of COVID-19 requiring advanced organ support. Hierarchical, generalized linear mixed-effect models accounting for hospital and country variability were employed to analyse the continuous evolution of the studied variables over the pandemic. RESULTS: Four thousand forty-one patients were included from March 2020 to September 2021. Over this period, the age of the admitted patients (62 [95% CI 60-63] years vs 64 [62-66] years, p < 0.001) and the severity of organ dysfunction at ICU admission decreased (Sequential Organ Failure Assessment 8.2 [7.6-9.0] vs 5.8 [5.3-6.4], p < 0.001) and increased, while more female patients (26 [23-29]% vs 41 [35-48]%, p < 0.001) were admitted. The time span between symptom onset and hospitalization as well as ICU admission became longer later in the pandemic (6.7 [6.2-7.2| days vs 9.7 [8.9-10.5] days, p < 0.001). The PaO2/FiO2 at admission was lower (132 [123-141] mmHg vs 101 [91-113] mmHg, p < 0.001) but showed faster improvements over the initial 5 days of ICU stay in late 2021 compared to early 2020 (34 [20-48] mmHg vs 70 [41-100] mmHg, p = 0.05). The number of patients treated with steroids and tocilizumab increased, while the use of therapeutic anticoagulation presented an inverse U-shaped behaviour over the course of the pandemic. The proportion of patients treated with high-flow oxygen (5 [4-7]% vs 20 [14-29], p < 0.001) and non-invasive mechanical ventilation (14 [11-18]% vs 24 [17-33]%, p < 0.001) throughout the pandemic increased concomitant to a decrease in invasive mechanical ventilation (82 [

Published
2022

2. Implications of early respiratory support strategies on disease progression in critical COVID-19: a matched subanalysis of the prospective RISC-19-ICU cohort

Author

Wendel Garcia, P, Aguirre-Bermeo, H, Buehler, P, Alfaro-Farias, M, Yuen, B, David, S, Tschoellitsch, T, Wengenmayer, T, Korsos, A, Fogagnolo, A, Kleger, G, Wu, M, Colombo, R, Turrini, F, Potalivo, A, Rezoagli, E, Rodriguez-Garcia, R, Castro, P, Lander-Azcona, A, Martin-Delgado, M, Lozano-Gomez, H, Ensner, R, Michot, M, Gehring, N, Schott, P, Siegemund, M, Merki, L, Wiegand, J, Jeitziner, M, Laube, M, Salomon, P, Hillgaertner, F, Dullenkopf, A, Ksouri, H, Cereghetti, S, Grazioli, S, Burkle, C, Marrel, J, Fleisch, I, Perez, M, Baltussen Weber, A, Ceruti, S, Marquardt, K, Hubner, T, Redecker, H, Studhalter, M, Stephan, M, Selz, D, Pietsch, U, Ristic, A, Heise, A, Meyer zu Bentrup, F, Franchitti Laurent, M, Fodor, P, Gaspert, T, Haberthuer, C, Colak, E, Heuberger, D, Fumeaux, T, Montomoli, J, Guerci, P, Schuepbach, R, Hilty, M, Roche-Campo, F, Algaba-Calderon, A, Apolo, J, Aslanidis, T, Babik, B, Boroli, F, Brem, J, Brenni, M, Brugger, S, Camen, G, Catena, E, Ceriani, R, Chau, I, Christ, A, Cogliati, C, Concha, P, Delahaye, G, Drvaric, I, Escos-Orta, J, Fabbri, S, Facondini, F, Filipovic, M, Gamez-Zapata, J, Gerecke, P, Gommers, D, Hillermann, T, Ince, C, Jenni-Moser, B, Jovic, M, Jurkolow, G, Klarer, A, Lambert, A, Laurent, J, Lavanchy, J, Lienhardt-Nobbe, B, Locher, P, Losser, M, Lussman, R, Magliocca, A, Margarit, A, Martinez, A, Mauri, R, Mayor-Vazquez, E, Meier, J, Moret-Bochatay, M, Murrone, M, Naon, D, Neff, T, Novy, E, Petersen, L, Pugin, J, Ramelet, A, Rilinger, J, Rimensberger, P, Sepulcri, M, Shaikh, K, Sieber, M, Simonini, M, Spadaro, S, Sridharan, G, Stahl, K, Staudacher, D, Taboada-Fraga, X, Tellez, A, Urech, S, Vitale, G, Vizmanos-Lamotte, G, Welte, T, Zalba-Etayo, B, Zellweger, N, Wendel Garcia P. D., Aguirre-Bermeo H., Buehler P. K., Alfaro-Farias M., Yuen B., David S., Tschoellitsch T., Wengenmayer T., Korsos A., Fogagnolo A., Kleger G. -R., Wu M. A., Colombo R., Turrini F., Potalivo A., Rezoagli E., Rodriguez-Garcia R., Castro P., Lander-Azcona A., Martin-Delgado M. C., Lozano-Gomez H., Ensner R., Michot M. P., Gehring N., Schott P., Siegemund M., Merki L., Wiegand J., Jeitziner M. M., Laube M., Salomon P., Hillgaertner F., Dullenkopf A., Ksouri H., Cereghetti S., Grazioli S., Burkle C., Marrel J., Fleisch I., Perez M. -H., Baltussen Weber A., Ceruti S., Marquardt K., Hubner T., Redecker H., Studhalter M., Stephan M., Selz D., Pietsch U., Ristic A., Heise A., Meyer zu Bentrup F., Franchitti Laurent M., Fodor P., Gaspert T., Haberthuer C., Colak E., Heuberger D. M., Fumeaux T., Montomoli J., Guerci P., Schuepbach R. A., Hilty M. P., Roche-Campo F., Algaba-Calderon A., Apolo J., Aslanidis T., Babik B., Boroli F., Brem J., Brenni M., Brugger S. D., Camen G., Catena E., Ceriani R., Chau I., Christ A., Cogliati C., Concha P., Delahaye G., Drvaric I., Escos-Orta J., Fabbri S., Facondini F., Filipovic M., Gamez-Zapata J., Gerecke P., Gommers D., Hillermann T., Ince C., Jenni-Moser B., Jovic M., Jurkolow G., Klarer A., Lambert A., Laurent J. -C., Lavanchy J., Lienhardt-Nobbe B., Locher P., Losser M. -R., Lussman R. F., Magliocca A., Margarit A., Martinez A., Mauri R., Mayor-Vazquez E., Meier J., Moret-Bochatay M., Murrone M., Naon D., Neff T., Novy E., Petersen L., Pugin J., Ramelet A. -S., Rilinger J., Rimensberger P. C., Sepulcri M., Shaikh K., Sieber M., Simonini M. S., Spadaro S., Sridharan G. O., Stahl K., Staudacher D. L., Taboada-Fraga X., Tellez A., Urech S., Vitale G., Vizmanos-Lamotte G., Welte T., Zalba-Etayo B., Zellweger N., Wendel Garcia, P, Aguirre-Bermeo, H, Buehler, P, Alfaro-Farias, M, Yuen, B, David, S, Tschoellitsch, T, Wengenmayer, T, Korsos, A, Fogagnolo, A, Kleger, G, Wu, M, Colombo, R, Turrini, F, Potalivo, A, Rezoagli, E, Rodriguez-Garcia, R, Castro, P, Lander-Azcona, A, Martin-Delgado, M, Lozano-Gomez, H, Ensner, R, Michot, M, Gehring, N, Schott, P, Siegemund, M, Merki, L, Wiegand, J, Jeitziner, M, Laube, M, Salomon, P, Hillgaertner, F, Dullenkopf, A, Ksouri, H, Cereghetti, S, Grazioli, S, Burkle, C, Marrel, J, Fleisch, I, Perez, M, Baltussen Weber, A, Ceruti, S, Marquardt, K, Hubner, T, Redecker, H, Studhalter, M, Stephan, M, Selz, D, Pietsch, U, Ristic, A, Heise, A, Meyer zu Bentrup, F, Franchitti Laurent, M, Fodor, P, Gaspert, T, Haberthuer, C, Colak, E, Heuberger, D, Fumeaux, T, Montomoli, J, Guerci, P, Schuepbach, R, Hilty, M, Roche-Campo, F, Algaba-Calderon, A, Apolo, J, Aslanidis, T, Babik, B, Boroli, F, Brem, J, Brenni, M, Brugger, S, Camen, G, Catena, E, Ceriani, R, Chau, I, Christ, A, Cogliati, C, Concha, P, Delahaye, G, Drvaric, I, Escos-Orta, J, Fabbri, S, Facondini, F, Filipovic, M, Gamez-Zapata, J, Gerecke, P, Gommers, D, Hillermann, T, Ince, C, Jenni-Moser, B, Jovic, M, Jurkolow, G, Klarer, A, Lambert, A, Laurent, J, Lavanchy, J, Lienhardt-Nobbe, B, Locher, P, Losser, M, Lussman, R, Magliocca, A, Margarit, A, Martinez, A, Mauri, R, Mayor-Vazquez, E, Meier, J, Moret-Bochatay, M, Murrone, M, Naon, D, Neff, T, Novy, E, Petersen, L, Pugin, J, Ramelet, A, Rilinger, J, Rimensberger, P, Sepulcri, M, Shaikh, K, Sieber, M, Simonini, M, Spadaro, S, Sridharan, G, Stahl, K, Staudacher, D, Taboada-Fraga, X, Tellez, A, Urech, S, Vitale, G, Vizmanos-Lamotte, G, Welte, T, Zalba-Etayo, B, Zellweger, N, Wendel Garcia P. D., Aguirre-Bermeo H., Buehler P. K., Alfaro-Farias M., Yuen B., David S., Tschoellitsch T., Wengenmayer T., Korsos A., Fogagnolo A., Kleger G. -R., Wu M. A., Colombo R., Turrini F., Potalivo A., Rezoagli E., Rodriguez-Garcia R., Castro P., Lander-Azcona A., Martin-Delgado M. C., Lozano-Gomez H., Ensner R., Michot M. P., Gehring N., Schott P., Siegemund M., Merki L., Wiegand J., Jeitziner M. M., Laube M., Salomon P., Hillgaertner F., Dullenkopf A., Ksouri H., Cereghetti S., Grazioli S., Burkle C., Marrel J., Fleisch I., Perez M. -H., Baltussen Weber A., Ceruti S., Marquardt K., Hubner T., Redecker H., Studhalter M., Stephan M., Selz D., Pietsch U., Ristic A., Heise A., Meyer zu Bentrup F., Franchitti Laurent M., Fodor P., Gaspert T., Haberthuer C., Colak E., Heuberger D. M., Fumeaux T., Montomoli J., Guerci P., Schuepbach R. A., Hilty M. P., Roche-Campo F., Algaba-Calderon A., Apolo J., Aslanidis T., Babik B., Boroli F., Brem J., Brenni M., Brugger S. D., Camen G., Catena E., Ceriani R., Chau I., Christ A., Cogliati C., Concha P., Delahaye G., Drvaric I., Escos-Orta J., Fabbri S., Facondini F., Filipovic M., Gamez-Zapata J., Gerecke P., Gommers D., Hillermann T., Ince C., Jenni-Moser B., Jovic M., Jurkolow G., Klarer A., Lambert A., Laurent J. -C., Lavanchy J., Lienhardt-Nobbe B., Locher P., Losser M. -R., Lussman R. F., Magliocca A., Margarit A., Martinez A., Mauri R., Mayor-Vazquez E., Meier J., Moret-Bochatay M., Murrone M., Naon D., Neff T., Novy E., Petersen L., Pugin J., Ramelet A. -S., Rilinger J., Rimensberger P. C., Sepulcri M., Shaikh K., Sieber M., Simonini M. S., Spadaro S., Sridharan G. O., Stahl K., Staudacher D. L., Taboada-Fraga X., Tellez A., Urech S., Vitale G., Vizmanos-Lamotte G., Welte T., Zalba-Etayo B., and Zellweger N.

Abstract

Background: Uncertainty about the optimal respiratory support strategies in critically ill COVID-19 patients is widespread. While the risks and benefits of noninvasive techniques versus early invasive mechanical ventilation (IMV) are intensely debated, actual evidence is lacking. We sought to assess the risks and benefits of different respiratory support strategies, employed in intensive care units during the first months of the COVID-19 pandemic on intubation and intensive care unit (ICU) mortality rates. Methods: Subanalysis of a prospective, multinational registry of critically ill COVID-19 patients. Patients were subclassified into standard oxygen therapy ≥10 L/min (SOT), high-flow oxygen therapy (HFNC), noninvasive positive-pressure ventilation (NIV), and early IMV, according to the respiratory support strategy employed at the day of admission to ICU. Propensity score matching was performed to ensure comparability between groups. Results: Initially, 1421 patients were assessed for possible study inclusion. Of these, 351 patients (85 SOT, 87 HFNC, 87 NIV, and 92 IMV) remained eligible for full analysis after propensity score matching. 55% of patients initially receiving noninvasive respiratory support required IMV. The intubation rate was lower in patients initially ventilated with HFNC and NIV compared to those who received SOT (SOT: 64%, HFNC: 52%, NIV: 49%, p = 0.025). Compared to the other respiratory support strategies, NIV was associated with a higher overall ICU mortality (SOT: 18%, HFNC: 20%, NIV: 37%, IMV: 25%, p = 0.016). Conclusion: In this cohort of critically ill patients with COVID-19, a trial of HFNC appeared to be the most balanced initial respiratory support strategy, given the reduced intubation rate and comparable ICU mortality rate. Nonetheless, considering the uncertainty and stress associated with the COVID-19 pandemic, SOT and early IMV represented safe initial respiratory support strategies. The presented findings, in

Published
2021

3. Machine learning using the extreme gradient boosting (XGBoost) algorithm predicts 5-day delta of SOFA score at ICU admission in COVID-19 patients

Author

Montomoli, J, Romeo, L, Moccia, S, Bernardini, M, Migliorelli, L, Berardini, D, Donati, A, Carsetti, A, Bocci, M, Wendel Garcia, P, Fumeaux, T, Guerci, P, Schupbach, R, Ince, C, Frontoni, E, Hilty, M, Alfaro-Farias, M, Vizmanos-Lamotte, G, Tschoellitsch, T, Meier, J, Aguirre-Bermeo, H, Apolo, J, Martinez, A, Jurkolow, G, Delahaye, G, Novy, E, Losser, M, Wengenmayer, T, Rilinger, J, Staudacher, D, David, S, Welte, T, Stahl, K, Pavlos, A, Aslanidis, T, Korsos, A, Babik, B, Nikandish, R, Rezoagli, E, Giacomini, M, Nova, A, Fogagnolo, A, Spadaro, S, Ceriani, R, Murrone, M, Wu, M, Cogliati, C, Colombo, R, Catena, E, Turrini, F, Simonini, M, Fabbri, S, Potalivo, A, Facondini, F, Gangitano, G, Perin, T, Grazia Bocci, M, Antonelli, M, Gommers, D, Rodriguez-Garcia, R, Gamez-Zapata, J, Taboada-Fraga, X, Castro, P, Tellez, A, Lander-Azcona, A, Escos-Orta, J, Martin-Delgado, M, Algaba-Calderon, A, Franch-Llasat, D, Roche-Campo, F, Lozano-Gomez, H, Zalba-Etayo, B, Michot, M, Klarer, A, Ensner, R, Schott, P, Urech, S, Zellweger, N, Merki, L, Lambert, A, Laube, M, Jeitziner, M, Jenni-Moser, B, Wiegand, J, Yuen, B, Lienhardt-Nobbe, B, Westphalen, A, Salomon, P, Drvaric, I, Hillgaertner, F, Sieber, M, Dullenkopf, A, Petersen, L, Chau, I, Ksouri, H, Sridharan, G, Cereghetti, S, Boroli, F, Pugin, J, Grazioli, S, Rimensberger, P, Burkle, C, Marrel, J, Brenni, M, Fleisch, I, Lavanchy, J, Perez, M, Ramelet, A, Weber, A, Gerecke, P, Christ, A, Ceruti, S, Glotta, A, Marquardt, K, Shaikh, K, Hubner, T, Neff, T, Redecker, H, Moret-Bochatay, M, Bentrup, F, Studhalter, M, Stephan, M, Brem, J, Gehring, N, Selz, D, Naon, D, Kleger, G, Pietsch, U, Filipovic, M, Ristic, A, Sepulcri, M, Heise, A, Franchitti Laurent, M, Laurent, J, Schuepbach, R, Heuberger, D, Buhler, P, Brugger, S, Fodor, P, Locher, P, Camen, G, Gaspert, T, Jovic, M, Haberthuer, C, Lussman, R, Colak, E, Montomoli J., Romeo L., Moccia S., Bernardini M., Migliorelli L., Berardini D., Donati A., Carsetti A., Bocci M. G., Wendel Garcia P. D., Fumeaux T., Guerci P., Schupbach R. A., Ince C., Frontoni E., Hilty M. P., Alfaro-Farias M., Vizmanos-Lamotte G., Tschoellitsch T., Meier J., Aguirre-Bermeo H., Apolo J., Martinez A., Jurkolow G., Delahaye G., Novy E., Losser M. -R., Wengenmayer T., Rilinger J., Staudacher D. L., David S., Welte T., Stahl K., Pavlos A., Aslanidis T., Korsos A., Babik B., Nikandish R., Rezoagli E., Giacomini M., Nova A., Fogagnolo A., Spadaro S., Ceriani R., Murrone M., Wu M. A., Cogliati C., Colombo R., Catena E., Turrini F., Simonini M. S., Fabbri S., Potalivo A., Facondini F., Gangitano G., Perin T., Grazia Bocci M., Antonelli M., Gommers D., Rodriguez-Garcia R., Gamez-Zapata J., Taboada-Fraga X., Castro P., Tellez A., Lander-Azcona A., Escos-Orta J., Martin-Delgado M. C., Algaba-Calderon A., Franch-Llasat D., Roche-Campo F., Lozano-Gomez H., Zalba-Etayo B., Michot M. P., Klarer A., Ensner R., Schott P., Urech S., Zellweger N., Merki L., Lambert A., Laube M., Jeitziner M. M., Jenni-Moser B., Wiegand J., Yuen B., Lienhardt-Nobbe B., Westphalen A., Salomon P., Drvaric I., Hillgaertner F., Sieber M., Dullenkopf A., Petersen L., Chau I., Ksouri H., Sridharan G. O., Cereghetti S., Boroli F., Pugin J., Grazioli S., Rimensberger P. C., Burkle C., Marrel J., Brenni M., Fleisch I., Lavanchy J., Perez M. -H., Ramelet A. -S., Weber A. B., Gerecke P., Christ A., Ceruti S., Glotta A., Marquardt K., Shaikh K., Hubner T., Neff T., Redecker H., Moret-Bochatay M., Bentrup F. Z., Studhalter M., Stephan M., Brem J., Gehring N., Selz D., Naon D., Kleger G. -R., Pietsch U., Filipovic M., Ristic A., Sepulcri M., Heise A., Franchitti Laurent M., Laurent J. -C., Schuepbach R., Heuberger D., Buhler P., Brugger S., Fodor P., Locher P., Camen G., Gaspert T., Jovic M., Haberthuer C., Lussman R. F., Colak E., Montomoli, J, Romeo, L, Moccia, S, Bernardini, M, Migliorelli, L, Berardini, D, Donati, A, Carsetti, A, Bocci, M, Wendel Garcia, P, Fumeaux, T, Guerci, P, Schupbach, R, Ince, C, Frontoni, E, Hilty, M, Alfaro-Farias, M, Vizmanos-Lamotte, G, Tschoellitsch, T, Meier, J, Aguirre-Bermeo, H, Apolo, J, Martinez, A, Jurkolow, G, Delahaye, G, Novy, E, Losser, M, Wengenmayer, T, Rilinger, J, Staudacher, D, David, S, Welte, T, Stahl, K, Pavlos, A, Aslanidis, T, Korsos, A, Babik, B, Nikandish, R, Rezoagli, E, Giacomini, M, Nova, A, Fogagnolo, A, Spadaro, S, Ceriani, R, Murrone, M, Wu, M, Cogliati, C, Colombo, R, Catena, E, Turrini, F, Simonini, M, Fabbri, S, Potalivo, A, Facondini, F, Gangitano, G, Perin, T, Grazia Bocci, M, Antonelli, M, Gommers, D, Rodriguez-Garcia, R, Gamez-Zapata, J, Taboada-Fraga, X, Castro, P, Tellez, A, Lander-Azcona, A, Escos-Orta, J, Martin-Delgado, M, Algaba-Calderon, A, Franch-Llasat, D, Roche-Campo, F, Lozano-Gomez, H, Zalba-Etayo, B, Michot, M, Klarer, A, Ensner, R, Schott, P, Urech, S, Zellweger, N, Merki, L, Lambert, A, Laube, M, Jeitziner, M, Jenni-Moser, B, Wiegand, J, Yuen, B, Lienhardt-Nobbe, B, Westphalen, A, Salomon, P, Drvaric, I, Hillgaertner, F, Sieber, M, Dullenkopf, A, Petersen, L, Chau, I, Ksouri, H, Sridharan, G, Cereghetti, S, Boroli, F, Pugin, J, Grazioli, S, Rimensberger, P, Burkle, C, Marrel, J, Brenni, M, Fleisch, I, Lavanchy, J, Perez, M, Ramelet, A, Weber, A, Gerecke, P, Christ, A, Ceruti, S, Glotta, A, Marquardt, K, Shaikh, K, Hubner, T, Neff, T, Redecker, H, Moret-Bochatay, M, Bentrup, F, Studhalter, M, Stephan, M, Brem, J, Gehring, N, Selz, D, Naon, D, Kleger, G, Pietsch, U, Filipovic, M, Ristic, A, Sepulcri, M, Heise, A, Franchitti Laurent, M, Laurent, J, Schuepbach, R, Heuberger, D, Buhler, P, Brugger, S, Fodor, P, Locher, P, Camen, G, Gaspert, T, Jovic, M, Haberthuer, C, Lussman, R, Colak, E, Montomoli J., Romeo L., Moccia S., Bernardini M., Migliorelli L., Berardini D., Donati A., Carsetti A., Bocci M. G., Wendel Garcia P. D., Fumeaux T., Guerci P., Schupbach R. A., Ince C., Frontoni E., Hilty M. P., Alfaro-Farias M., Vizmanos-Lamotte G., Tschoellitsch T., Meier J., Aguirre-Bermeo H., Apolo J., Martinez A., Jurkolow G., Delahaye G., Novy E., Losser M. -R., Wengenmayer T., Rilinger J., Staudacher D. L., David S., Welte T., Stahl K., Pavlos A., Aslanidis T., Korsos A., Babik B., Nikandish R., Rezoagli E., Giacomini M., Nova A., Fogagnolo A., Spadaro S., Ceriani R., Murrone M., Wu M. A., Cogliati C., Colombo R., Catena E., Turrini F., Simonini M. S., Fabbri S., Potalivo A., Facondini F., Gangitano G., Perin T., Grazia Bocci M., Antonelli M., Gommers D., Rodriguez-Garcia R., Gamez-Zapata J., Taboada-Fraga X., Castro P., Tellez A., Lander-Azcona A., Escos-Orta J., Martin-Delgado M. C., Algaba-Calderon A., Franch-Llasat D., Roche-Campo F., Lozano-Gomez H., Zalba-Etayo B., Michot M. P., Klarer A., Ensner R., Schott P., Urech S., Zellweger N., Merki L., Lambert A., Laube M., Jeitziner M. M., Jenni-Moser B., Wiegand J., Yuen B., Lienhardt-Nobbe B., Westphalen A., Salomon P., Drvaric I., Hillgaertner F., Sieber M., Dullenkopf A., Petersen L., Chau I., Ksouri H., Sridharan G. O., Cereghetti S., Boroli F., Pugin J., Grazioli S., Rimensberger P. C., Burkle C., Marrel J., Brenni M., Fleisch I., Lavanchy J., Perez M. -H., Ramelet A. -S., Weber A. B., Gerecke P., Christ A., Ceruti S., Glotta A., Marquardt K., Shaikh K., Hubner T., Neff T., Redecker H., Moret-Bochatay M., Bentrup F. Z., Studhalter M., Stephan M., Brem J., Gehring N., Selz D., Naon D., Kleger G. -R., Pietsch U., Filipovic M., Ristic A., Sepulcri M., Heise A., Franchitti Laurent M., Laurent J. -C., Schuepbach R., Heuberger D., Buhler P., Brugger S., Fodor P., Locher P., Camen G., Gaspert T., Jovic M., Haberthuer C., Lussman R. F., and Colak E.

Abstract

Background: Accurate risk stratification of critically ill patients with coronavirus disease 2019 (COVID-19) is essential for optimizing resource allocation, delivering targeted interventions, and maximizing patient survival probability. Machine learning (ML) techniques are attracting increased interest for the development of prediction models as they excel in the analysis of complex signals in data-rich environments such as critical care. Methods: We retrieved data on patients with COVID-19 admitted to an intensive care unit (ICU) between March and October 2020 from the RIsk Stratification in COVID-19 patients in the Intensive Care Unit (RISC-19-ICU) registry. We applied the Extreme Gradient Boosting (XGBoost) algorithm to the data to predict as a binary outcome the increase or decrease in patients’ Sequential Organ Failure Assessment (SOFA) score on day 5 after ICU admission. The model was iteratively cross-validated in different subsets of the study cohort. Results: The final study population consisted of 675 patients. The XGBoost model correctly predicted a decrease in SOFA score in 320/385 (83%) critically ill COVID-19 patients, and an increase in the score in 210/290 (72%) patients. The area under the mean receiver operating characteristic curve for XGBoost was significantly higher than that for the logistic regression model (0.86 vs. 0.69, P < 0.01 [paired t-test with 95% confidence interval]). Conclusions: The XGBoost model predicted the change in SOFA score in critically ill COVID-19 patients admitted to the ICU and can guide clinical decision support systems (CDSSs) aimed at optimizing available resources.

Published
2021

4. Implications of early respiratory support strategies on disease progression in critical COVID-19: a matched subanalysis of the prospective RISC-19-ICU cohort

Author

Wendel Garcia P. D., Aguirre-Bermeo H., Buehler P. K., Alfaro-Farias M., Yuen B., David S., Tschoellitsch T., Wengenmayer T., Korsos A., Fogagnolo A., Kleger G. -R., Wu M. A., Colombo R., Turrini F., Potalivo A., Rezoagli E., Rodriguez-Garcia R., Castro P., Lander-Azcona A., Martin-Delgado M. C., Lozano-Gomez H., Ensner R., Michot M. P., Gehring N., Schott P., Siegemund M., Merki L., Wiegand J., Jeitziner M. M., Laube M., Salomon P., Hillgaertner F., Dullenkopf A., Ksouri H., Cereghetti S., Grazioli S., Burkle C., Marrel J., Fleisch I., Perez M. -H., Baltussen Weber A., Ceruti S., Marquardt K., Hubner T., Redecker H., Studhalter M., Stephan M., Selz D., Pietsch U., Ristic A., Heise A., Meyer zu Bentrup F., Franchitti Laurent M., Fodor P., Gaspert T., Haberthuer C., Colak E., Heuberger D. M., Fumeaux T., Montomoli J., Guerci P., Schuepbach R. A., Hilty M. P., Roche-Campo F., Algaba-Calderon A., Apolo J., Aslanidis T., Babik B., Boroli F., Brem J., Brenni M., Brugger S. D., Camen G., Catena E., Ceriani R., Chau I., Christ A., Cogliati C., Concha P., Delahaye G., Drvaric I., Escos-Orta J., Fabbri S., Facondini F., Filipovic M., Gamez-Zapata J., Gerecke P., Gommers D., Hillermann T., Ince C., Jenni-Moser B., Jovic M., Jurkolow G., Klarer A., Lambert A., Laurent J. -C., Lavanchy J., Lienhardt-Nobbe B., Locher P., Losser M. -R., Lussman R. F., Magliocca A., Margarit A., Martinez A., Mauri R., Mayor-Vazquez E., Meier J., Moret-Bochatay M., Murrone M., Naon D., Neff T., Novy E., Petersen L., Pugin J., Ramelet A. -S., Rilinger J., Rimensberger P. C., Sepulcri M., Shaikh K., Sieber M., Simonini M. S., Spadaro S., Sridharan G. O., Stahl K., Staudacher D. L., Taboada-Fraga X., Tellez A., Urech S., Vitale G., Vizmanos-Lamotte G., Welte T., Zalba-Etayo B., Zellweger N., Graduate School, ACS - Atherosclerosis & ischemic syndromes, ACS - Microcirculation, AII - Inflammatory diseases, RISC-19-ICU Investigators, Wendel Garcia, P.D., Aguirre-Bermeo, H., Buehler, P.K., Alfaro-Farias, M., Yuen, B., David, S., Tschoellitsch, T., Wengenmayer, T., Korsos, A., Fogagnolo, A., Kleger, G.R., Wu, M.A., Colombo, R., Turrini, F., Potalivo, A., Rezoagli, E., Rodríguez-García, R., Castro, P., Lander-Azcona, A., Martín-Delgado, M.C., Lozano-Gómez, H., Ensner, R., Michot, M.P., Gehring, N., Schott, P., Siegemund, M., Merki, L., Wiegand, J., Jeitziner, M.M., Laube, M., Salomon, P., Hillgaertner, F., Dullenkopf, A., Ksouri, H., Cereghetti, S., Grazioli, S., Bürkle, C., Marrel, J., Fleisch, I., Perez, M.H., Baltussen Weber, A., Ceruti, S., Marquardt, K., Hübner, T., Redecker, H., Studhalter, M., Stephan, M., Selz, D., Pietsch, U., Ristic, A., Heise, A., Meyer Zu Bentrup, F., Franchitti Laurent, M., Fodor, P., Gaspert, T., Haberthuer, C., Colak, E., Heuberger, D.M., Fumeaux, T., Montomoli, J., Guerci, P., Schuepbach, R.A., Hilty, M.P., Roche-Campo, F., Algaba-Calderon, A., Apolo, J., Aslanidis, T., Babik, B., Boroli, F., Brem, J., Brenni, M., Brugger, S.D., Camen, G., Catena, E., Ceriani, R., Chau, I., Christ, A., Cogliati, C., Concha, P., Delahaye, G., Drvaric, I., Escós-Orta, J., Fabbri, S., Facondini, F., Filipovic, M., Gámez-Zapata, J., Gerecke, P., Gommers, D., Hillermann, T., Ince, C., Jenni-Moser, B., Jovic, M., Jurkolow, G., Klarer, A., Lambert, A., Laurent, J.C., Lavanchy, J., Lienhardt-Nobbe, B., Locher, P., Losser, M.R., Lussman, R.F., Magliocca, A., Margarit, A., Martínez, A., Mauri, R., Mayor-Vázquez, E., Meier, J., Moret-Bochatay, M., Murrone, M., Naon, D., Neff, T., Novy, E., Petersen, L., Pugin, J., Ramelet, A.S., Rilinger, J., Rimensberger, P.C., Sepulcri, M., Shaikh, K., Sieber, M., Simonini, M.S., Spadaro, S., Sridharan, G.O., Stahl, K., Staudacher, D.L., Taboada-Fraga, X., Tellez, A., Urech, S., Vitale, G., Vizmanos-Lamotte, G., Welte, T., Zalba-Etayo, B., Zellweger, N., Wendel Garcia, P, Aguirre-Bermeo, H, Buehler, P, Alfaro-Farias, M, Yuen, B, David, S, Tschoellitsch, T, Wengenmayer, T, Korsos, A, Fogagnolo, A, Kleger, G, Wu, M, Colombo, R, Turrini, F, Potalivo, A, Rezoagli, E, Rodriguez-Garcia, R, Castro, P, Lander-Azcona, A, Martin-Delgado, M, Lozano-Gomez, H, Ensner, R, Michot, M, Gehring, N, Schott, P, Siegemund, M, Merki, L, Wiegand, J, Jeitziner, M, Laube, M, Salomon, P, Hillgaertner, F, Dullenkopf, A, Ksouri, H, Cereghetti, S, Grazioli, S, Burkle, C, Marrel, J, Fleisch, I, Perez, M, Baltussen Weber, A, Ceruti, S, Marquardt, K, Hubner, T, Redecker, H, Studhalter, M, Stephan, M, Selz, D, Pietsch, U, Ristic, A, Heise, A, Meyer zu Bentrup, F, Franchitti Laurent, M, Fodor, P, Gaspert, T, Haberthuer, C, Colak, E, Heuberger, D, Fumeaux, T, Montomoli, J, Guerci, P, Schuepbach, R, Hilty, M, Roche-Campo, F, Algaba-Calderon, A, Apolo, J, Aslanidis, T, Babik, B, Boroli, F, Brem, J, Brenni, M, Brugger, S, Camen, G, Catena, E, Ceriani, R, Chau, I, Christ, A, Cogliati, C, Concha, P, Delahaye, G, Drvaric, I, Escos-Orta, J, Fabbri, S, Facondini, F, Filipovic, M, Gamez-Zapata, J, Gerecke, P, Gommers, D, Hillermann, T, Ince, C, Jenni-Moser, B, Jovic, M, Jurkolow, G, Klarer, A, Lambert, A, Laurent, J, Lavanchy, J, Lienhardt-Nobbe, B, Locher, P, Losser, M, Lussman, R, Magliocca, A, Margarit, A, Martinez, A, Mauri, R, Mayor-Vazquez, E, Meier, J, Moret-Bochatay, M, Murrone, M, Naon, D, Neff, T, Novy, E, Petersen, L, Pugin, J, Ramelet, A, Rilinger, J, Rimensberger, P, Sepulcri, M, Shaikh, K, Sieber, M, Simonini, M, Spadaro, S, Sridharan, G, Stahl, K, Staudacher, D, Taboada-Fraga, X, Tellez, A, Urech, S, Vitale, G, Vizmanos-Lamotte, G, Welte, T, Zalba-Etayo, B, Zellweger, N, and Intensive Care

Subjects
Male, ARDS, Time Factors, medicine.medical_treatment, Old age, Critical Care and Intensive Care Medicine, law.invention, 0302 clinical medicine, law, Oxygen therapy, Noninvasive mechanical ventilation, Intubation, 030212 general & internal medicine, Hospital Mortality, Prospective Studies, Registries, Prospective cohort study, 610 Medicine & health, Unitats de cures intensives, Intensive care units, Medical emergencies. Critical care. Intensive care. First aid, Middle Aged, Intensive care unit, Intensive Care Units, Treatment Outcome, Vellesa, High flow oxygen therapy, Disease Progression, Female, Standard oxygen therapy, medicine.medical_specialty, Respiratory Therapy, Critical Illness, NO, 03 medical and health sciences, Intensive care, medicine, Humans, Invasive mechanical ventilation, Critically ill, Patient self-inflicted lung injury, Aged, Retrospective Studies, Mechanical ventilation, COVID-19/mortality, COVID-19/therapy, Critical Illness/mortality, Critical Illness/therapy, Respiratory Therapy/methods, Respiratory Therapy/statistics & numerical data, COVID-19, Respiratory support, business.industry, RC86-88.9, Research, Retrospective cohort study, medicine.disease, Malalts en estat crític, 030228 respiratory system, Emergency medicine, business
Abstract

Background Uncertainty about the optimal respiratory support strategies in critically ill COVID-19 patients is widespread. While the risks and benefits of noninvasive techniques versus early invasive mechanical ventilation (IMV) are intensely debated, actual evidence is lacking. We sought to assess the risks and benefits of different respiratory support strategies, employed in intensive care units during the first months of the COVID-19 pandemic on intubation and intensive care unit (ICU) mortality rates. Methods Subanalysis of a prospective, multinational registry of critically ill COVID-19 patients. Patients were subclassified into standard oxygen therapy ≥10 L/min (SOT), high-flow oxygen therapy (HFNC), noninvasive positive-pressure ventilation (NIV), and early IMV, according to the respiratory support strategy employed at the day of admission to ICU. Propensity score matching was performed to ensure comparability between groups. Results Initially, 1421 patients were assessed for possible study inclusion. Of these, 351 patients (85 SOT, 87 HFNC, 87 NIV, and 92 IMV) remained eligible for full analysis after propensity score matching. 55% of patients initially receiving noninvasive respiratory support required IMV. The intubation rate was lower in patients initially ventilated with HFNC and NIV compared to those who received SOT (SOT: 64%, HFNC: 52%, NIV: 49%, p = 0.025). Compared to the other respiratory support strategies, NIV was associated with a higher overall ICU mortality (SOT: 18%, HFNC: 20%, NIV: 37%, IMV: 25%, p = 0.016). Conclusion In this cohort of critically ill patients with COVID-19, a trial of HFNC appeared to be the most balanced initial respiratory support strategy, given the reduced intubation rate and comparable ICU mortality rate. Nonetheless, considering the uncertainty and stress associated with the COVID-19 pandemic, SOT and early IMV represented safe initial respiratory support strategies. The presented findings, in agreement with classic ARDS literature, suggest that NIV should be avoided whenever possible due to the elevated ICU mortality risk.

Published
2021
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6. Gastric emptying after overnight fasting and clear fluid intake: a prospective investigation using serial magnetic resonance imaging in healthy children†

Author

Schmitz, A., Kellenberger, C. J., Liamlahi, R., Studhalter, M., Weiss, M., Schmitz, A., Kellenberger, C. J., Liamlahi, R., Studhalter, M., and Weiss, M.

Abstract

Background Current guidelines recommend preoperative fasting of 2 h for clear fluids, which is often exceeded in routine clinical practice. Existing data on residual gastric volumes in children do not consider fluid intake within <2 h and rely on the aspiration of gastric contents via a gastric tube. This study evaluated the emptying of clear fluids from the stomach using magnetic resonance imaging (MRI). Methods Healthy volunteers aged 6-14 years were asked to fast overnight. MRI scans to assess gastric volumes were obtained before and immediately after drinking 7 ml kg−1 of diluted raspberry syrup and then every 30 min up to 120 min. Volumes were determined by a blinded investigator and indexed gastric fluid/air volumes (GFVw/GAVw) and half-life (t1/2) of GFVw course after clear fluid intake were calculated. Results Sixteen children, median age 9.2 (range 6.4-12.8) years, were investigated. Median (range) GFVw was 0.62 (0.15-0.97) ml kg−1 before and 6.68 (4.77-7.78) ml kg−1 immediately after fluid intake, and 2.92 (0.43-5.04), 1.27 (0.28-3.62), 0.42 (0.07-2.49), and 0.32 (0.04-1.13) ml kg−1 30, 60, 90, and 120 min thereafter. Median GFVw declined exponentially (t1/2=26.1 min). Median individual t1/2 was 23.6 (range 17.9-47.8) min. GAVw showed considerable intra- and inter-individual variation. Conclusions In healthy school children, gastric emptying after ingestion of clear fluid occurs with a median half-life time of <30 min but with considerable inter-individual variation

Published
2017

8. Gastric emptying after overnight fasting and clear fluid intake: a prospective investigation using serial magnetic resonance imaging in healthy children

Author

Schmitz, A, Kellenberger, C J; https://orcid.org/0000-0001-9122-2431, Liamlahi, R, Studhalter, M, Weiss, M, Schmitz, A, Kellenberger, C J; https://orcid.org/0000-0001-9122-2431, Liamlahi, R, Studhalter, M, and Weiss, M

Abstract

BACKGROUND: Current guidelines recommend preoperative fasting of 2 h for clear fluids, which is often exceeded in routine clinical practice. Existing data on residual gastric volumes in children do not consider fluid intake within <2 h and rely on the aspiration of gastric contents via a gastric tube. This study evaluated the emptying of clear fluids from the stomach using magnetic resonance imaging (MRI). METHODS: Healthy volunteers aged 6-14 years were asked to fast overnight. MRI scans to assess gastric volumes were obtained before and immediately after drinking 7 ml kg(-1) of diluted raspberry syrup and then every 30 min up to 120 min. Volumes were determined by a blinded investigator and indexed gastric fluid/air volumes (GFV(w)/GAV(w)) and half-life (t(1/2)) of GFV(w) course after clear fluid intake were calculated. RESULTS: Sixteen children, median age 9.2 (range 6.4-12.8) years, were investigated. Median (range) GFV(w) was 0.62 (0.15-0.97) ml kg(-1) before and 6.68 (4.77-7.78) ml kg(-1) immediately after fluid intake, and 2.92 (0.43-5.04), 1.27 (0.28-3.62), 0.42 (0.07-2.49), and 0.32 (0.04-1.13) ml kg(-1) 30, 60, 90, and 120 min thereafter. Median GFV(w) declined exponentially (t(1/2)=26.1 min). Median individual t(1/2) was 23.6 (range 17.9-47.8) min. GAV(w) showed considerable intra- and inter-individual variation. CONCLUSIONS: In healthy school children, gastric emptying after ingestion of clear fluid occurs with a median half-life time of <30 min but with considerable inter-individual variation.

Published
2011

11. Gastric emptying after overnight fasting and clear fluid intake: a prospective investigation using serial magnetic resonance imaging in healthy children†

Author

Schmitz, A., Kellenberger, C. J., Liamlahi, R., Studhalter, M., Weiss, M., Schmitz, A., Kellenberger, C. J., Liamlahi, R., Studhalter, M., and Weiss, M.

Abstract

Background Current guidelines recommend preoperative fasting of 2 h for clear fluids, which is often exceeded in routine clinical practice. Existing data on residual gastric volumes in children do not consider fluid intake within <2 h and rely on the aspiration of gastric contents via a gastric tube. This study evaluated the emptying of clear fluids from the stomach using magnetic resonance imaging (MRI). Methods Healthy volunteers aged 6-14 years were asked to fast overnight. MRI scans to assess gastric volumes were obtained before and immediately after drinking 7 ml kg−1 of diluted raspberry syrup and then every 30 min up to 120 min. Volumes were determined by a blinded investigator and indexed gastric fluid/air volumes (GFVw/GAVw) and half-life (t1/2) of GFVw course after clear fluid intake were calculated. Results Sixteen children, median age 9.2 (range 6.4-12.8) years, were investigated. Median (range) GFVw was 0.62 (0.15-0.97) ml kg−1 before and 6.68 (4.77-7.78) ml kg−1 immediately after fluid intake, and 2.92 (0.43-5.04), 1.27 (0.28-3.62), 0.42 (0.07-2.49), and 0.32 (0.04-1.13) ml kg−1 30, 60, 90, and 120 min thereafter. Median GFVw declined exponentially (t1/2=26.1 min). Median individual t1/2 was 23.6 (range 17.9-47.8) min. GAVw showed considerable intra- and inter-individual variation. Conclusions In healthy school children, gastric emptying after ingestion of clear fluid occurs with a median half-life time of <30 min but with considerable inter-individual variation

12. Dynamics of disease characteristics and clinical management of critically ill COVID-19 patients over the time course of the pandemic: an analysis of the prospective, international, multicentre RISC-19-ICU registry

Author

Pedro David, Wendel-Garcia, André, Moser, Marie-Madlen, Jeitziner, Hernán, Aguirre-Bermeo, Pedro, Arias-Sanchez, Janina, Apolo, Ferran, Roche-Campo, Diego, Franch-Llasat, Gian-Reto, Kleger, Claudia, Schrag, Urs, Pietsch, Miodrag, Filipovic, Sascha, David, Klaus, Stahl, Souad, Bouaoud, Amel, Ouyahia, Patricia, Fodor, Pascal, Locher, Martin, Siegemund, Nuria, Zellweger, Sara, Cereghetti, Peter, Schott, Gianfilippo, Gangitano, Maddalena Alessandra, Wu, Mario, Alfaro-Farias, Gerardo, Vizmanos-Lamotte, Hatem, Ksouri, Nadine, Gehring, Emanuele, Rezoagli, Fabrizio, Turrini, Herminia, Lozano-Gómez, Andrea, Carsetti, Raquel, Rodríguez-García, Bernd, Yuen, Anja Baltussen, Weber, Pedro, Castro, Jesus Oscar, Escos-Orta, Alexander, Dullenkopf, Maria C, Martín-Delgado, Theodoros, Aslanidis, Marie-Helene, Perez, Frank, Hillgaertner, Samuele, Ceruti, Marilene, Franchitti Laurent, Julien, Marrel, Riccardo, Colombo, Marcus, Laube, Alberto, Fogagnolo, Michael, Studhalter, Tobias, Wengenmayer, Emiliano, Gamberini, Christian, Buerkle, Philipp K, Buehler, Stefanie, Keiser, Muhammed, Elhadi, Jonathan, Montomoli, Philippe, Guerci, Thierry, Fumeaux, Reto A, Schuepbach, Stephan M, Jakob, Yok-Ai, Que, Matthias Peter, Hilty, Saba, Al-Ameri, Wendel-Garcia, P, Moser, A, Jeitziner, M, Aguirre-Bermeo, H, Arias-Sanchez, P, Apolo, J, Roche-Campo, F, Franch-Llasat, D, Kleger, G, Schrag, C, Pietsch, U, Filipovic, M, David, S, Stahl, K, Bouaoud, S, Ouyahia, A, Fodor, P, Locher, P, Siegemund, M, Zellweger, N, Cereghetti, S, Schott, P, Gangitano, G, Wu, M, Alfaro-Farias, M, Vizmanos-Lamotte, G, Ksouri, H, Gehring, N, Rezoagli, E, Turrini, F, Lozano-Gomez, H, Carsetti, A, Rodriguez-Garcia, R, Yuen, B, Weber, A, Castro, P, Escos-Orta, J, Dullenkopf, A, Martin-Delgado, M, Aslanidis, T, Perez, M, Hillgaertner, F, Ceruti, S, Franchitti Laurent, M, Marrel, J, Colombo, R, Laube, M, Fogagnolo, A, Studhalter, M, Wengenmayer, T, Gamberini, E, Buerkle, C, Buehler, P, Keiser, S, Elhadi, M, Montomoli, J, Guerci, P, Fumeaux, T, Schuepbach, R, Jakob, S, Que, Y, Hilty, M, Graduate School, Translational Physiology, ACS - Atherosclerosis & ischemic syndromes, ACS - Microcirculation, and AII - Inflammatory diseases

Subjects
Disease dynamic, Disease dynamics, Pandemic, Critical Illness, COVID-19, 610 Medicine & health, Middle Aged, Critical Care and Intensive Care Medicine, Intensive Care Units, Humans, Female, ARDS, Intensive care unit, Prospective Studies, Registries, Pandemics
Abstract

BackgroundIt remains elusive how the characteristics, the course of disease, the clinical management and the outcomes of critically ill COVID-19 patients admitted to intensive care units (ICU) worldwide have changed over the course of the pandemic.MethodsProspective, observational registry constituted by 90 ICUs across 22 countries worldwide including patients with a laboratory-confirmed, critical presentation of COVID-19 requiring advanced organ support. Hierarchical, generalized linear mixed-effect models accounting for hospital and country variability were employed to analyse the continuous evolution of the studied variables over the pandemic.ResultsFour thousand forty-one patients were included from March 2020 to September 2021. Over this period, the age of the admitted patients (62 [95% CI 60–63] years vs 64 [62–66] years,p p p p 2/FiO2at admission was lower (132 [123–141] mmHg vs 101 [91–113] mmHg,p p = 0.05). The number of patients treated with steroids and tocilizumab increased, while the use of therapeutic anticoagulation presented an inverse U-shaped behaviour over the course of the pandemic. The proportion of patients treated with high-flow oxygen (5 [4–7]% vs 20 [14–29],p p p p p ConclusionCharacteristics and disease course of critically ill COVID-19 patients have continuously evolved, concomitant to the clinical management, throughout the pandemic leading to a younger, less severely ill ICU population with distinctly different clinical, pulmonary and inflammatory presentations than at the onset of the pandemic.

Published
2022
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13. Machine learning using the Extreme Gradient Boosting (XGBoost) algorithm predicts 5-day delta of SOFA score at ICU admission in COVID-19 patients

Author

Marie M. Jeitziner, Iris Drvaric, Jan Wiegand, Abele Donati, Janina Apolo, Emanuele Rezoagli, Jesús Escós-Orta, Herminia Lozano-Gómez, Mirko Brenni, Giovanni Camen, Frank Hillgaertner, Sara Moccia, Antje Heise, Alexander Dullenkopf, Michael Stephan, Can Ince, Marcus Laube, Julien Marrel, Michele Bernardini, Barbara Lienhardt-Nobbe, Hernán Aguirre-Bermeo, Alberto Fogagnolo, Dorothea M. Heuberger, Severin Urech, Reto A. Schuepbach, Andrea Glotta, Samuele Ceruti, Isabelle Fleisch, Marc P. Michot, Alice Nova, Matthias P. Hilty, Tomislav Gaspert, Gianfilippo Gangitano, Savino Spadaro, Ivan Chau, Daniele Berardini, Tiziana Perin, Andrea Westphalen, Marie-Reine Losser, Hatem Ksouri, Marie-Hélène Perez, Theodoros Aslanidis, Christoph Haberthuer, Gerardo Vizmanos-Lamotte, Jorge Gámez-Zapata, Filippo Boroli, Adriana Lambert, Serge Grazioli, Petra Salomon, Christian Bürkle, Didier Naon, Philipp Bühler, Dawid L. Staudacher, Miodrag Filipovic, Hermann Redecker, Mario Alfaro-Farias, Massimo Antonelli, Rolf Ensner, Jerome Lavanchy, Lukas Merki, Roberto Ceriani, Anette Ristic, Chiara Cogliati, Reto Andreas Schüpbach, Daniela Selz, Begoña Zalba-Etayo, Anne-Sylvie Ramelet, Thierry Fumeaux, Andrea Carsetti, Peter Gerecke, Riccardo Colombo, Marilene Franchitti Laurent, Fabrizio Turrini, Tobias Wengenmayer, Tobias Welte, Philippe Guerci, Antonella Potalivo, Lucia Migliorelli, Barna Babik, Reza Nikandish, Pedro D. Wendel Garcia, Alberto Martínez, Maria Sole Simonini, Diederik Gommers, Xiana Taboada-Fraga, Jerome Pugin, Peter C. Rimensberger, Angela Algaba-Calderon, FriederikeMeyer zu Bentrup, Agios Pavlos, Thomas Tschoellitsch, Marianne Sieber, Karim Shaikh, Nuria Zellweger, Silvio Brugger, Geoffrey Jurkolow, Anja Baltussen Weber, Maria C. Martín-Delgado, Anita Korsós, Gian-Reto Kleger, Alexander Klarer, Emmanuel Novy, Diego Franch-Llasat, Adrian Tellez, Peter Schott, Jonathan Rilinger, Andreas Christ, Bernd Yuen, Jean-Christophe Laurent, Nadine Gehring, Pedro Castro, Sascha David, Francesca Facondini, Arantxa Lander-Azcona, Maria Grazia Bocci, Maddalena Alessandra Wu, Mallory Moret-Bochatay, Sara Cereghetti, Urs Pietsch, Martina Murrone, Gauthier Delahaye, Luca Romeo, Pascal Locher, Pedro David Wendel Garcia, Michael Sepulcri, Marija Jovic, Katharina Marquardt, Emanuele Frontoni, Patricia Fodor, Emanuele Catena, Tobias Hübner, Thomas Neff, Roger F. Lussman, Matteo Giacomini, Govind Oliver Sridharan, Beatrice Jenni-Moser, Jan Brem, Michael Studhalter, Elif Colak, Raquel Rodríguez-García, Silvia Fabbri, Jens Meier, Lina Petersen, Jonathan Montomoli, Ferran Roche-Campo, Klaus Stahl, Montomoli, J, Romeo, L, Moccia, S, Bernardini, M, Migliorelli, L, Berardini, D, Donati, A, Carsetti, A, Bocci, M, Wendel Garcia, P, Fumeaux, T, Guerci, P, Schupbach, R, Ince, C, Frontoni, E, Hilty, M, Alfaro-Farias, M, Vizmanos-Lamotte, G, Tschoellitsch, T, Meier, J, Aguirre-Bermeo, H, Apolo, J, Martinez, A, Jurkolow, G, Delahaye, G, Novy, E, Losser, M, Wengenmayer, T, Rilinger, J, Staudacher, D, David, S, Welte, T, Stahl, K, Pavlos, A, Aslanidis, T, Korsos, A, Babik, B, Nikandish, R, Rezoagli, E, Giacomini, M, Nova, A, Fogagnolo, A, Spadaro, S, Ceriani, R, Murrone, M, Wu, M, Cogliati, C, Colombo, R, Catena, E, Turrini, F, Simonini, M, Fabbri, S, Potalivo, A, Facondini, F, Gangitano, G, Perin, T, Grazia Bocci, M, Antonelli, M, Gommers, D, Rodriguez-Garcia, R, Gamez-Zapata, J, Taboada-Fraga, X, Castro, P, Tellez, A, Lander-Azcona, A, Escos-Orta, J, Martin-Delgado, M, Algaba-Calderon, A, Franch-Llasat, D, Roche-Campo, F, Lozano-Gomez, H, Zalba-Etayo, B, Michot, M, Klarer, A, Ensner, R, Schott, P, Urech, S, Zellweger, N, Merki, L, Lambert, A, Laube, M, Jeitziner, M, Jenni-Moser, B, Wiegand, J, Yuen, B, Lienhardt-Nobbe, B, Westphalen, A, Salomon, P, Drvaric, I, Hillgaertner, F, Sieber, M, Dullenkopf, A, Petersen, L, Chau, I, Ksouri, H, Sridharan, G, Cereghetti, S, Boroli, F, Pugin, J, Grazioli, S, Rimensberger, P, Burkle, C, Marrel, J, Brenni, M, Fleisch, I, Lavanchy, J, Perez, M, Ramelet, A, Weber, A, Gerecke, P, Christ, A, Ceruti, S, Glotta, A, Marquardt, K, Shaikh, K, Hubner, T, Neff, T, Redecker, H, Moret-Bochatay, M, Bentrup, F, Studhalter, M, Stephan, M, Brem, J, Gehring, N, Selz, D, Naon, D, Kleger, G, Pietsch, U, Filipovic, M, Ristic, A, Sepulcri, M, Heise, A, Franchitti Laurent, M, Laurent, J, Schuepbach, R, Heuberger, D, Buhler, P, Brugger, S, Fodor, P, Locher, P, Camen, G, Gaspert, T, Jovic, M, Haberthuer, C, Lussman, R, Colak, E, Biomedical Engineering and Physics, ACS - Microcirculation, Translational Physiology, ACS - Atherosclerosis & ischemic syndromes, Graduate School, AII - Infectious diseases, and University of Zurich

Subjects
610 Medicine & health, Organ dysfunction score, Machine learning, computer.software_genre, Logistic regression, Clinical decision support system, law.invention, law, Medicine, Clinical decision support system (CDSS), Receiver operating characteristic, RC86-88.9, business.industry, Clinical decision support systems, COVID-19, Medical emergencies. Critical care. Intensive care. First aid, Extreme Gradient Boosting (XGBoost), Intensive care unit, Multiple organ failure, Cohort, Population study, SOFA score, Original Article, Artificial intelligence, 10023 Institute of Intensive Care Medicine, business, Algorithm, computer, Predictive modelling
Abstract

Background : Accurate risk stratification of critically ill patients with coronavirus disease 2019 (COVID-19) is essential for optimizing resource allocation, delivering targeted interventions, and maximizing patient survival probability. Machine learning (ML) techniques are attracting increased interest for the development of prediction models as they excel in the analysis of complex signals in data-rich environments such as critical care. Methods : We retrieved data on patients with COVID-19 admitted to an intensive care unit (ICU) between March and October 2020 from the RIsk Stratification in COVID-19 patients in the Intensive Care Unit (RISC-19-ICU) registry. We applied the Extreme Gradient Boosting (XGBoost) algorithm to the data to predict as a binary outcome the increase or decrease in patients’ Sequential Organ Failure Assessment (SOFA) score on day 5 after ICU admission. The model was iteratively cross-validated in different subsets of the study cohort. Results : The final study population consisted of 675 patients. The XGBoost model correctly predicted a decrease in SOFA score in 320/385 (83%) critically ill COVID-19 patients, and an increase in the score in 210/290 (72%) patients. The area under the mean receiver operating characteristic curve for XGBoost was significantly higher than that for the logistic regression model {0.86 vs. 0.69, P

Published
2021

14. [A fish-intoxication as a rare cause of chest pain].

Author

Brignoli G, Herzog R, and Studhalter M

Subjects
Humans, Middle Aged, Diagnosis, Differential, Male, Kounis Syndrome diagnosis, Kounis Syndrome etiology, Animals, Anaphylaxis chemically induced, Anaphylaxis diagnosis, Foodborne Diseases diagnosis, Foodborne Diseases etiology, Marine Toxins poisoning, Chest Pain etiology, Electrocardiography
Abstract

Introduction: We describe the case of a 58-year-old patient who developed chest pain and an anaphylaktoide reaction after ingestion of contamined fish containing histamin. Histamin intoxication from food poisoning (also known as scombroid intoxication) can be mistaken for an anaphylactic reaction and occasionaly lead to cardiac symptoms, even in patients without atherosclerotic changes. This condition is called Kounis syndrom and has to be recognized as a separate syndrom with specific clinical features., Competing Interests: Es bestehen keine Interessenkonflikte, (© 2024 Aerzteverlag medinfo AG.)

Published
2024
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15. [When the Brain Dictates the Rhythm].

Author

Burri A, Graf N, and Studhalter M

Subjects
Female, Humans, Aged, Syncope diagnosis, Arrhythmias, Cardiac diagnosis, Seizures, Electrocardiography, Brain diagnostic imaging, Encephalitis complications
Abstract

Introduction: In rare cases, an HSV-Encephalitis can lead to sinus node dysfunction, as was the case in this 70-year old woman who suffered from recurrent syncopes. Diagnostic work-up showed sinus bradycardias and short-lasting sinus arrests, primarily consider-ed to be of cardiac etiology. After development of fever and neurological alteration, an HSV1 encephalitis was diagnosed. As our research of the current literature showed, the connection between the two is not completely clear. The HSVtypical infestation of the insular cortex, which influences the autonomic nervous system, should be discussed by all means. However, due to cessation of arrhythmia after seizure-suppressing therapy, we suspected an epileptic cause in this case. This shows the importance of a thorough differential diagnostic evaluation., (© 2023 Aerzteverlag medinfo AG.)

Published
2023

16. [Shock and Coma after Ingestion of Morels].

Author

Widmer D and Studhalter M

Subjects
Female, Humans, Adult, Coma chemically induced, Coma diagnosis, Renal Dialysis, Eating, Ascomycota, Shock etiology, Shock therapy
Abstract

Shock and Coma after Ingestion of Morels Abstract. We present the case report of a previously healthy, 42-year-old woman who suffered from a hypovolemic shock, hypoglycemic coma, NSTEMI and temporary dependency on dialysis following the ingestion of morels. Alas there is little public knowledge about the toxicity of morels and the importance of their appropriate preparation so that intoxications can be prevented.

Published
2023
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17. [Record-Breaking Acidosis].

Author

Kuster MR, Studhalter M, and Kindler RM

Subjects
Humans, Acidosis
Abstract

Record-Breaking Acidosis Abstract. To maintain a stable cellular metabolism, tight regulation of blood pH within a normal range (pH 7,35-7,45) is essential. Even small aberrations can have detrimental effects, and pH values <6,8 or pH >7,8 are considered - based on current medical and physiological knowledge - incompatible with life [9-19].

Published
2022
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18. [An Unusual Case of Rhabdomyolysis].

Author

Dandörfer A and Studhalter M

Subjects
Humans, Middle Aged, Glycyrrhiza, Hypokalemia chemically induced, Hypokalemia diagnosis, Rhabdomyolysis chemically induced, Rhabdomyolysis diagnosis, Rhabdomyolysis therapy
Abstract

An Unusual Case of Rhabdomyolysis Abstract. We present the case of a 52-year-old patient with accidental liquorice intoxication after consumption of liquorice tea. In the Arabic cultures the consumption of liquorice tea is very popular during Ramadan and is used to suppress thirst. In the described case this led to a severe case of pseudohyperaldosteronism. Because of the classic presentation of a hypertensive crisis, hypokalaemia and rhabdomyolysis, the patient needed intensive care. Typically, the symptoms last for up to seven days after discontinuation of liquorice and completely subside with time. The treatment consists only of supportive care.

Published
2021
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19. [Lactic Acidosis and Other Misunderstandings].

Author

Baumann L and Studhalter M

Subjects
Biomarkers, Critical Care, Humans, Lactic Acid, Acidosis, Acidosis, Lactic diagnosis, Acidosis, Lactic therapy
Abstract

Lactic Acidosis and Other Misunderstandings Abstract. Lactic acidosis is a frequently encountered clinical problem in intensive care medicine. Nevertheless, many of the underlying biochemical processes are insufficiently understood, which leads to various misconceptions. Physiologically, lactate is an important, continuously produced carrier of energy and by no means a metabolic 'waste product'. Lactate is the corresponding base to lactic acid and is produced directly from pyruvate. In this reaction H + is consumed and therefore lactate production itself cannot be directly responsible for the simultaneously arising acidosis. An elevated lactate level allows no conclusions about the underlying pathophysiological process, and, more importantly, it is not an appropriate marker for tissue oxygenation.

Published
2020
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20. [A Sweet Drink with Consequences].

Author

Noronha B, Kuster M, Forster C, and Studhalter M

Subjects
Diagnosis, Differential, Humans, Poisoning diagnosis, Ethylene Glycol poisoning, Methanol poisoning
Abstract

A Sweet Drink with Consequences Abstract. Intoxications with ethylene glycol are rare, however, small quantities from the substance can be life-threatening. Regarding the treatment it is important to recognize the intoxication quickly and to immediately start the appropriate treatment. Intoxications with ethylene glycol or with methanol should always be considered as differential diagnosis in patients with severe metabolic acidosis. It is also very important to calculate the osmolal gap.

Published
2019
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21. Digitalis purpurea: ein Suizidversuch.

Author

Iten M, Studhalter M, Lampert M, Walter P, and Paganoni R

Subjects
Atrioventricular Block blood, Atrioventricular Block chemically induced, Atrioventricular Block diagnosis, Atrioventricular Block therapy, Digoxin blood, Dose-Response Relationship, Drug, Electrocardiography drug effects, Humans, Plant Poisoning blood, Plant Poisoning therapy, Digitalis poisoning, Plant Leaves poisoning, Plant Poisoning diagnosis, Suicide, Attempted
Published
2018
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22. Akute Beinschmerzen mit fulminantem Verlauf bei einem 69-Jährigen.

Author

Brönnimann A, Piso RJ, Paganoni R, and Studhalter M

Subjects
Aged, Clostridium perfringens, Diagnosis, Differential, Fatal Outcome, Humans, Male, Reoperation, Shock, Septic diagnosis, Shock, Septic surgery, Tomography, X-Ray Computed, Back Pain etiology, Diskectomy, Fasciitis, Necrotizing diagnosis, Fasciitis, Necrotizing surgery, Gas Gangrene diagnosis, Gas Gangrene surgery, Intervertebral Disc Displacement surgery, Microvascular Decompression Surgery, Postoperative Complications diagnosis, Postoperative Complications surgery, Spinal Stenosis surgery
Published
2017
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24. Fasting times and gastric contents volume in children undergoing deep propofol sedation--an assessment using magnetic resonance imaging.

Author

Schmitz A, Kellenberger CJ, Neuhaus D, Schroeter E, Deanovic D, Prüfer F, Studhalter M, Völlmer L, and Weiss M

Subjects
Adolescent, Body Weight physiology, Child, Child, Preschool, Data Interpretation, Statistical, Female, Humans, Infant, Magnetic Resonance Imaging, Male, Observer Variation, Preoperative Care, Time Factors, Young Adult, Anesthetics, Inhalation, Deep Sedation, Fasting physiology, Gastrointestinal Contents, Propofol
Abstract

Aim: To investigate the effect of fasting times for clear fluids and solids/non-clear fluids on gastric content volume using magnetic resonance imaging (MRI)., Methods: Pediatric patients undergoing diagnostic MRI under deep propofol sedation, with the stomach located within the area of diagnostic study, were included in this clinical observational study. According to standard institutional guidelines, children were allowed to eat/drink until 4 h and to drink clear fluids until 2 h before scheduled induction time of anesthesia. Gastric content volume per kg body weight (GCV(w)) was determined using MRI and compared with actual fasting times prior to induction., Results: Overall 68 patients aged from 0.3 to 19.6 (2.8) years were investigated. Fasting time for clear fluids ranged from 1.1 to 15.5 (5.5) h, for non-clear fluids/solids from 4.0 to 20.2 (6.7) h. GCV(w) ranged from 0.2 to 6.3 (0.75) ml·kg(-1) and showed no significant negative correlation to fasting times for clear fluids (r = -0.07, P = 0.60) and non-clear fluids/solids (r = -0.08, P = 0.51)., Conclusions: Based on this preliminary data, GCV(w) showed considerable variation but did not correlate with fasting times in children and adolescent patients. Recommended fasting times were often exceeded., (© 2011 Blackwell Publishing Ltd.)

Published
2011
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