Abstract
Sepsis-induced cardiac dysfunction occurs early in the course of severe sepsis. The mechanisms responsible for its development are complex and intricate. The degree of severity of septic myocardial depression is variable from patient to patient. Doppler echocardiography is the best method to make the diagnosis of cardiac dysfunction (a decrease in left ventricular ejection fraction). The transpulmonary thermodilution monitor (decrease in cardiac function index, decrease in cardiac output) and the pulmonary artery catheter (decrease in cardiac output and/or decrease in mixed venous oxygen saturation) can be used either to alert clinicians of the possibility of cardiac dysfunction or to monitor the effects of inotropic therapy. Low plasma levels of B-type natriuretic peptide levels can serve to rule out severe cardiac dysfunction. In contrast, high levels of natriuretic peptides do not allow diagnosing myocardial depression with certainty and should prompt the performance of echocardiographic examination. Administration of inotropic drugs, such as β1-agonist agents, is a matter of debate and should be carefully monitored in terms of efficacy as well as tolerance.
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Abbreviations
- A:
-
Peak Doppler velocity of late diastolic flow
- BNP:
-
B-type natriuretic peptide
- CFI:
-
Cardiac function index
- cTnI:
-
Cardiac troponin I
- cTnT:
-
Cardiac troponin T
- E:
-
Peak Doppler velocity of early diastolic flow
- Ea:
-
Early diastolic mitral annular velocity
- GEDV:
-
Global end-diastolic volume
- LVEF:
-
Left ventricular ejection fraction
- NO:
-
Nitric oxide
- NT-proBNP:
-
N terminal proBNP
- PAC:
-
Pulmonary artery catheter
- PAOP:
-
Pulmonary artery occlusion pressure
- PEEP:
-
Positive end-expiratory pressure
- ScvO2 :
-
Central venous blood oxygen saturation
- SvO2 :
-
Mixed venous blood oxygen saturation
- VTIAo:
-
Velocity-time integral of aortic blood flow
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Hamzaoui, O., Teboul, JL. (2012). Monitoring Myocardial Dysfunction as Part of Sepsis Management. In: Rello, J., Lipman, J., Lisboa, T. (eds) Sepsis Management. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-03519-7_8
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