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Köhler T, Schwier E, Praxenthaler J, Kirchner C, Winde G, Koos B, Henzler D. Isoflurane, like sepsis, decreases CYP1A2 liver enzyme activity in intensive care patients: a clinical study and network model. Intensive Care Med Exp 2024; 12:33. [PMID: 38589754 PMCID: PMC11001842 DOI: 10.1186/s40635-024-00617-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2023] [Accepted: 03/13/2024] [Indexed: 04/10/2024] Open
Abstract
PURPOSE Liver function of intensive care patients is routinely monitored by static blood pathology. For specific indications, liver specific cytochrome activity may be measured by the commercially available maximum liver function capacity (LiMAx) test via quantification of the cytochrome P450 1A2 (CYP1A2) dependent C-methacetin metabolism. Sedation with the volatile anesthetic isoflurane was suspected to abrogate the correlation of LiMAx test with global liver function. We hypothesized that isoflurane has a CYP1A2-activity and LiMAx test result decreasing effect. METHODS In this monocentric, observational clinical study previously liver healthy intensive care patients, scheduled to be changed from propofol to isoflurane sedation, were enrolled. LiMAx testing was done before, during and after termination of isoflurane sedation. RESULTS The mean LiMAx value decreased during isoflurane sedation. Septic patients (n = 11) exhibited lower LiMAx values compared to non-septic patients (n = 11) at all time points. LiMAx values decreased with isoflurane from 140 ± 82 to 30 ± 34 µg kg-1 h-1 in the septic group and from 253 ± 92 to 147 ± 131 µg kg-1 h-1 in the non-septic group while laboratory markers did not imply significant hepatic impairment. Lactate increased during isoflurane inhalation without clinical consequence. CONCLUSION Sepsis and isoflurane have independently demonstrated an effect on reducing the hepatic CYP1A2-activity. A network model was constructed that could explain the mechanism through the influence of isoflurane on hypoxia inducible factor (HIF-1α) by upregulation of the hypoxia-inducible pathway and the downregulation of CYP1A2-activity via the ligand-inducible pathway. Thus, the increased anaerobic metabolism may result in lactate accumulation. The influence of isoflurane sedation on the validated correlation of global liver function with CYP1A2-activity measured by LiMAx testing needs to be investigated in more detail.
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Affiliation(s)
- Thomas Köhler
- Department of Anesthesiology, Surgical Intensive Care, Emergency and Pain Medicine, Ruhr University Bochum, Klinikum Herford, Herford, Germany.
- Department of Anesthesiology and Intensive Care Medicine, AMEOS-Klinikum Halberstadt, Academic Teaching Hospital, Gleimstraße 5, 38820, Halberstadt, Germany.
| | - Elke Schwier
- Department of Anesthesiology, Surgical Intensive Care, Emergency and Pain Medicine, Ruhr University Bochum, Klinikum Herford, Herford, Germany
| | - Janina Praxenthaler
- Department of Anesthesiology, Surgical Intensive Care, Emergency and Pain Medicine, Ruhr University Bochum, Klinikum Herford, Herford, Germany
- Department of Anesthesiology, Intensive Care and Pain Medicine, Southeast Bavaria Hospitals, Klinikum Traunstein, Traunstein, Germany
| | - Carmen Kirchner
- Department of General and Visceral Surgery, Thoracic Surgery and Proctology, Ruhr University Bochum, Klinikum Herford, Herford, Germany
| | - Günther Winde
- Department of General and Visceral Surgery, Thoracic Surgery and Proctology, Ruhr University Bochum, Klinikum Herford, Herford, Germany
| | - Björn Koos
- Department of Anesthesiology, Intensive Care and Pain Medicine, Ruhr University Bochum, Knappschaftskrankenhaus Bochum GmbH, Bochum, Germany
| | - Dietrich Henzler
- Department of Anesthesiology, Surgical Intensive Care, Emergency and Pain Medicine, Ruhr University Bochum, Klinikum Herford, Herford, Germany
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Turan C, Szigetváry CE, Kói T, Engh MA, Atakan I, Zubek L, Terebessy T, Hegyi P, Molnár Z. Hemoadsorption Therapy for Critically Ill Patients with Acute Liver Dysfunction: A Meta-Analysis and Systematic Review. Biomedicines 2023; 12:67. [PMID: 38255174 PMCID: PMC10813081 DOI: 10.3390/biomedicines12010067] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2023] [Revised: 12/15/2023] [Accepted: 12/24/2023] [Indexed: 01/24/2024] Open
Abstract
Critically ill patients are at risk of developing acute liver dysfunction as part of multiorgan failure sequelae. Clearing the blood from toxic liver-related metabolites and cytokines could prevent further organ damage. Despite the increasing use of hemoadsorption for this purpose, evidence of its efficacy is lacking. Therefore, we conducted this systematic review and meta-analysis to assess the evidence on clinical outcomes following hemoadsorption therapy. A systematic search conducted in six electronic databases (PROSPERO registration: CRD42022286213) yielded 30 eligible publications between 2011 and 2023, reporting the use of hemoadsorption for a total of 335 patients presenting with liver dysfunction related to acute critical illness. Of those, 26 are case presentations (n = 84), 3 are observational studies (n = 142), and 1 is a registry analysis (n = 109). Analysis of data from individual cases showed a significant reduction in levels of aspartate transaminase (p = 0.03) and vasopressor need (p = 0.03) and a tendency to lower levels of total bilirubin, alanine transaminase, C-reactive protein, and creatinine. Pooled data showed a significant reduction in total bilirubin (mean difference of -4.79 mg/dL (95% CI: -6.25; -3.33), p = 0.002). The use of hemoadsorption for critically ill patients with acute liver dysfunction or failure seems to be safe and yields a trend towards improved liver function after therapy, but more high-quality evidence is crucially needed.
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Affiliation(s)
- Caner Turan
- Department of Anesthesiology and Intensive Therapy, Semmelweis University, 1085 Budapest, Hungary; (C.T.); (C.E.S.)
- Centre for Translational Medicine, Semmelweis University, 1085 Budapest, Hungary; (T.K.); (I.A.); (L.Z.); (T.T.); (P.H.)
| | - Csenge Erzsébet Szigetváry
- Department of Anesthesiology and Intensive Therapy, Semmelweis University, 1085 Budapest, Hungary; (C.T.); (C.E.S.)
- Centre for Translational Medicine, Semmelweis University, 1085 Budapest, Hungary; (T.K.); (I.A.); (L.Z.); (T.T.); (P.H.)
| | - Tamás Kói
- Centre for Translational Medicine, Semmelweis University, 1085 Budapest, Hungary; (T.K.); (I.A.); (L.Z.); (T.T.); (P.H.)
- Department of Stochastics, Institute of Mathematics, Budapest University of Technology and Economics, 1111 Budapest, Hungary
| | - Marie Anne Engh
- Centre for Translational Medicine, Semmelweis University, 1085 Budapest, Hungary; (T.K.); (I.A.); (L.Z.); (T.T.); (P.H.)
| | - Işıl Atakan
- Centre for Translational Medicine, Semmelweis University, 1085 Budapest, Hungary; (T.K.); (I.A.); (L.Z.); (T.T.); (P.H.)
| | - László Zubek
- Centre for Translational Medicine, Semmelweis University, 1085 Budapest, Hungary; (T.K.); (I.A.); (L.Z.); (T.T.); (P.H.)
| | - Tamás Terebessy
- Centre for Translational Medicine, Semmelweis University, 1085 Budapest, Hungary; (T.K.); (I.A.); (L.Z.); (T.T.); (P.H.)
- Department of Orthopaedics, Semmelweis University, 1085 Budapest, Hungary
| | - Péter Hegyi
- Centre for Translational Medicine, Semmelweis University, 1085 Budapest, Hungary; (T.K.); (I.A.); (L.Z.); (T.T.); (P.H.)
- Institute of Pancreatic Diseases, Semmelweis University, 1085 Budapest, Hungary
- Institute for Translational Medicine, Medical School, University of Pécs, 7623 Pécs, Hungary
| | - Zsolt Molnár
- Department of Anesthesiology and Intensive Therapy, Semmelweis University, 1085 Budapest, Hungary; (C.T.); (C.E.S.)
- Centre for Translational Medicine, Semmelweis University, 1085 Budapest, Hungary; (T.K.); (I.A.); (L.Z.); (T.T.); (P.H.)
- Department of Anesthesiology and Intensive Therapy, Poznan University of Medical Sciences, 60-806 Poznan, Poland
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