Cardiac Stress in Septic Shock - Biomarkers, Echocardiography and Outcome
NCT ID: NCT01747187
Last Updated: 2012-12-11
Study Results
The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.
Basic Information
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UNKNOWN
50 participants
OBSERVATIONAL
2012-10-31
2015-04-30
Brief Summary
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Here, cardiac failure in ICU patients with septic shock is studied, using biological markers of cardiac stress, inflammatory parameters and echocardiography.
Investigators hypothesize that biomarkers of cardiac stress correlate with echocardiographic signs of heart failure, and that they can predict an increased risk of death.
Detailed Description
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Septic shock is dominated clinically by circulatory changes presenting with profound vasodilatation and hypotension. Cardiac output values are often seemingly normal, or even enhanced, when compared with the physiological range. However, relative to the vasodilatation, cardiac output is often not adequately enhanced. Thus, the degree of myocardial depression in sepsis is often underestimated by the clinician, albeit a factor that markedly increases mortality.
Septic cardiomyopathy typically engages both ventricles globally, and involves diminished cardiac response to volume and circulating catecholamines. It is not primarily hypoxic, but rather has a multifactorial origin. In survivors, it is typically reversible, but long-term consequences are not known.
Cardiac biomarkers, i.e. troponins and natriuretic peptides, are all associated with worse outcome in septic shock. Cardiac troponins are frequently elevated and correlate to the duration of hypotension and the intensity of vasopressor support. Elevated natriuretic peptides predict adverse outcome, and values are often markedly elevated even in seemingly normal echocardiographic findings. It is not clear whether this indicates structural myocardial damage, or rather demonstrate a global septic membrane leakage. Thus, with the complexity of sepsis, combinations of cardiac biomarkers and markers of global inflammation may provide a more robust tool for stratification and prognostication and for evaluation of septic organ dysfunction. In clinical cardiology, combinations of biomarkers of myocardial stress are used for stratification and prognostication of myocardial failure, but the role of such multimarker panels in septic cardiomyopathy has not been studied.
Echocardiography is used clinically, and has been the focus of several studies, to characterize septic cardiomyopathy. Echocardiographic signs of systolic dysfunction has been the main focus of previous investigations, and the systolic component is the focus of modern guidelines of clinical management in septic cardiomyopathy. The role of diastolic dysfunction is gaining interest, with data suggesting higher mortality in patients with diastolic dysfunction than in those with systolic dysfunction. To date, the correlation of echocardiographic signs of systolic or diastolic dysfunction myocardial stress biomarker panels, and the dynamics of any correlation, has not been studied.
The hypothesis of this study is that biological markers of cardiac stress correlate with echocardiographic signs of cardiac failure, that they can predict outcome, and that they correlate to conventional methods of outcome prediction.
Conditions
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Keywords
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Study Design
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COHORT
PROSPECTIVE
Study Groups
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Septic shock
No interventions assigned to this group
Eligibility Criteria
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Inclusion Criteria
Exclusion Criteria
* Patients in which mental inabilities or language barriers impair the possibility of informed consent.
18 Years
ALL
No
Sponsors
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University Hospital, Linkoeping
OTHER
Responsible Party
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Anna Oscarsson
MD, PhD
Principal Investigators
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Lina De Geer, MD
Role: PRINCIPAL_INVESTIGATOR
University Hospital, Linkoeping
Locations
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Dept of Intensive Care, University Hospital, Linkoeping
Linköping, , Sweden
Countries
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Central Contacts
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Facility Contacts
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Lina De Geer, MD
Role: primary
Anna Oscarsson, MD, PhD
Role: backup
References
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Gullo A, Bianco N, Berlot G. Management of severe sepsis and septic shock: challenges and recommendations. Crit Care Clin. 2006 Jul;22(3):489-501, ix. doi: 10.1016/j.ccc.2006.03.006.
Lever A, Mackenzie I. Sepsis: definition, epidemiology, and diagnosis. BMJ. 2007 Oct 27;335(7625):879-83. doi: 10.1136/bmj.39346.495880.AE. No abstract available.
Russell JA, Boyd J, Nakada T, Thair S, Walley KR. Molecular mechanisms of sepsis. Contrib Microbiol. 2011;17:48-85. doi: 10.1159/000324009. Epub 2011 Jun 9.
Flynn A, Chokkalingam Mani B, Mather PJ. Sepsis-induced cardiomyopathy: a review of pathophysiologic mechanisms. Heart Fail Rev. 2010 Nov;15(6):605-11. doi: 10.1007/s10741-010-9176-4.
Sturgess DJ, Marwick TH, Joyce C, Jenkins C, Jones M, Masci P, Stewart D, Venkatesh B. Prediction of hospital outcome in septic shock: a prospective comparison of tissue Doppler and cardiac biomarkers. Crit Care. 2010;14(2):R44. doi: 10.1186/cc8931. Epub 2010 Mar 24.
ver Elst KM, Spapen HD, Nguyen DN, Garbar C, Huyghens LP, Gorus FK. Cardiac troponins I and T are biological markers of left ventricular dysfunction in septic shock. Clin Chem. 2000 May;46(5):650-7.
Rivers EP, McCord J, Otero R, Jacobsen G, Loomba M. Clinical utility of B-type natriuretic peptide in early severe sepsis and septic shock. J Intensive Care Med. 2007 Nov-Dec;22(6):363-73. doi: 10.1177/0885066607307523.
Pierrakos C, Vincent JL. Sepsis biomarkers: a review. Crit Care. 2010;14(1):R15. doi: 10.1186/cc8872. Epub 2010 Feb 9.
Landesberg G, Gilon D, Meroz Y, Georgieva M, Levin PD, Goodman S, Avidan A, Beeri R, Weissman C, Jaffe AS, Sprung CL. Diastolic dysfunction and mortality in severe sepsis and septic shock. Eur Heart J. 2012 Apr;33(7):895-903. doi: 10.1093/eurheartj/ehr351. Epub 2011 Sep 11.
Salem R, Vallee F, Rusca M, Mebazaa A. Hemodynamic monitoring by echocardiography in the ICU: the role of the new echo techniques. Curr Opin Crit Care. 2008 Oct;14(5):561-8. doi: 10.1097/MCC.0b013e32830e6d81.
Rudiger A, Singer M. Mechanisms of sepsis-induced cardiac dysfunction. Crit Care Med. 2007 Jun;35(6):1599-608. doi: 10.1097/01.CCM.0000266683.64081.02.
Levy MM, Dellinger RP, Townsend SR, Linde-Zwirble WT, Marshall JC, Bion J, Schorr C, Artigas A, Ramsay G, Beale R, Parker MM, Gerlach H, Reinhart K, Silva E, Harvey M, Regan S, Angus DC; Surviving Sepsis Campaign. The Surviving Sepsis Campaign: results of an international guideline-based performance improvement program targeting severe sepsis. Crit Care Med. 2010 Feb;38(2):367-74. doi: 10.1097/CCM.0b013e3181cb0cdc.
Blixt PJ, Nguyen M, Cholley B, Hammarskjold F, Toiron A, Bouhemad B, Lee S, De Geer L, Andersson H, Aneq MA, Engvall J, Chew MS. Association between left ventricular systolic function parameters and myocardial injury, organ failure and mortality in patients with septic shock. Ann Intensive Care. 2024 Jan 18;14(1):12. doi: 10.1186/s13613-023-01235-5.
Other Identifiers
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Septic Heart
Identifier Type: -
Identifier Source: org_study_id