Hemoadsorption with CytoSorb shows a decreased observed versus expected 28-day all-cause mortality in ICU patients with septic shock: a propensity-score-weighted retrospective study

Abstract Background and aims Innovative treatment modalities have not yet shown a clinical benefit in patients with septic shock. To reduce severe cytokinaemia, CytoSorb as an add-on to continuous renal replacement therapy (CRRT) showed promising results in case reports. However, there are no clinic...

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Main Authors: Willem Pieter Brouwer, Servet Duran, Martijn Kuijper, Can Ince
Format: Article
Language:English
Published: BMC 2019-09-01
Series:Critical Care
Subjects:
Online Access:http://link.springer.com/article/10.1186/s13054-019-2588-1
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author Willem Pieter Brouwer
Servet Duran
Martijn Kuijper
Can Ince
author_facet Willem Pieter Brouwer
Servet Duran
Martijn Kuijper
Can Ince
author_sort Willem Pieter Brouwer
collection DOAJ
description Abstract Background and aims Innovative treatment modalities have not yet shown a clinical benefit in patients with septic shock. To reduce severe cytokinaemia, CytoSorb as an add-on to continuous renal replacement therapy (CRRT) showed promising results in case reports. However, there are no clinical trials investigating outcomes. Methods In this investigator-initiated retrospective study, patients with septic shock were treated with CRRT + CytoSorb (n = 67) or CRRT alone (n = 49). The primary outcome was the 28-day all-cause mortality rate. Patients were weighted by stabilized inverse probability of treatment weights (sIPTW) to overcome differences in baseline characteristics. Results At the start of therapy, CytoSorb-treated patients had higher lactate levels (p < 0.001), lower mean arterial pressure (p = 0.007) and higher levels of noradrenaline (p < 0.001) compared to the CRRT group. For CytoSorb, the mean predicted mortality rate based on a SOFA of 13.8 (n = 67) was 75% (95%CI 71–79%), while the actual 28-day mortality rate was 48% (mean difference − 27%, 95%CI − 38 to − 15%, p < 0.001). For CRRT, based on a SOFA of 12.8 (n = 49), the mean predicted versus observed mortality was 68% versus 51% (mean difference − 16.9% [95%CI − 32.6 to − 1.2%, p = 0.035]). By sIPTW analysis, patients treated with CytoSorb had a significantly lower 28-day mortality rate compared to CRRT alone (53% vs. 72%, respectively, p = 0.038). Independent predictors of 28-day mortality in the CytoSorb group were the presence of pneumosepsis (adjusted odds ratio [aOR] 5.47, p = 0.029), higher levels of lactate at the start of CytoSorb (aOR 1.15, p = 0.031) and older age (aOR per 10 years 1.67, p = 0.034). Conclusions CytoSorb was associated with a decreased observed versus expected 28-day all-cause mortality. By IPTW analysis, intervention with CytoSorb may be associated with a decreased all-cause mortality at 28 days compared to CRRT alone.
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spelling doaj.art-aa499ed43fd743088d25aeba288876c22022-12-21T23:39:05ZengBMCCritical Care1364-85352019-09-012311910.1186/s13054-019-2588-1Hemoadsorption with CytoSorb shows a decreased observed versus expected 28-day all-cause mortality in ICU patients with septic shock: a propensity-score-weighted retrospective studyWillem Pieter Brouwer0Servet Duran1Martijn Kuijper2Can Ince3Department of Gastroenterology and Hepatology, Erasmus MC, University Medical Center RotterdamDepartment of Intensive Care Medicine, Maasstad ZiekenhuisScience board, Maasstad ZiekenhuisDepartment of Intensive Care Medicine, Erasmus MC, University Medical Center RotterdamAbstract Background and aims Innovative treatment modalities have not yet shown a clinical benefit in patients with septic shock. To reduce severe cytokinaemia, CytoSorb as an add-on to continuous renal replacement therapy (CRRT) showed promising results in case reports. However, there are no clinical trials investigating outcomes. Methods In this investigator-initiated retrospective study, patients with septic shock were treated with CRRT + CytoSorb (n = 67) or CRRT alone (n = 49). The primary outcome was the 28-day all-cause mortality rate. Patients were weighted by stabilized inverse probability of treatment weights (sIPTW) to overcome differences in baseline characteristics. Results At the start of therapy, CytoSorb-treated patients had higher lactate levels (p < 0.001), lower mean arterial pressure (p = 0.007) and higher levels of noradrenaline (p < 0.001) compared to the CRRT group. For CytoSorb, the mean predicted mortality rate based on a SOFA of 13.8 (n = 67) was 75% (95%CI 71–79%), while the actual 28-day mortality rate was 48% (mean difference − 27%, 95%CI − 38 to − 15%, p < 0.001). For CRRT, based on a SOFA of 12.8 (n = 49), the mean predicted versus observed mortality was 68% versus 51% (mean difference − 16.9% [95%CI − 32.6 to − 1.2%, p = 0.035]). By sIPTW analysis, patients treated with CytoSorb had a significantly lower 28-day mortality rate compared to CRRT alone (53% vs. 72%, respectively, p = 0.038). Independent predictors of 28-day mortality in the CytoSorb group were the presence of pneumosepsis (adjusted odds ratio [aOR] 5.47, p = 0.029), higher levels of lactate at the start of CytoSorb (aOR 1.15, p = 0.031) and older age (aOR per 10 years 1.67, p = 0.034). Conclusions CytoSorb was associated with a decreased observed versus expected 28-day all-cause mortality. By IPTW analysis, intervention with CytoSorb may be associated with a decreased all-cause mortality at 28 days compared to CRRT alone.http://link.springer.com/article/10.1186/s13054-019-2588-1SepsisSeptic shockTreatmentHemofiltrationCytosorbCytosorbent
spellingShingle Willem Pieter Brouwer
Servet Duran
Martijn Kuijper
Can Ince
Hemoadsorption with CytoSorb shows a decreased observed versus expected 28-day all-cause mortality in ICU patients with septic shock: a propensity-score-weighted retrospective study
Critical Care
Sepsis
Septic shock
Treatment
Hemofiltration
Cytosorb
Cytosorbent
title Hemoadsorption with CytoSorb shows a decreased observed versus expected 28-day all-cause mortality in ICU patients with septic shock: a propensity-score-weighted retrospective study
title_full Hemoadsorption with CytoSorb shows a decreased observed versus expected 28-day all-cause mortality in ICU patients with septic shock: a propensity-score-weighted retrospective study
title_fullStr Hemoadsorption with CytoSorb shows a decreased observed versus expected 28-day all-cause mortality in ICU patients with septic shock: a propensity-score-weighted retrospective study
title_full_unstemmed Hemoadsorption with CytoSorb shows a decreased observed versus expected 28-day all-cause mortality in ICU patients with septic shock: a propensity-score-weighted retrospective study
title_short Hemoadsorption with CytoSorb shows a decreased observed versus expected 28-day all-cause mortality in ICU patients with septic shock: a propensity-score-weighted retrospective study
title_sort hemoadsorption with cytosorb shows a decreased observed versus expected 28 day all cause mortality in icu patients with septic shock a propensity score weighted retrospective study
topic Sepsis
Septic shock
Treatment
Hemofiltration
Cytosorb
Cytosorbent
url http://link.springer.com/article/10.1186/s13054-019-2588-1
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