The aim of this study is to investigate the effects milrinon and levosimandan on n heart function in septic cardiomyopathy and how norepinephrine affects the left and right ventricular function in patients with septick shock using pulmonary artery catheter, conventional and strain echocardiography.
This is a prospective study where 30 patients with septic chock during the care in ICU, will be included. Patients with a history of previous heart disease are excluded from the study. Each patient is in need of norepinephrine infusion and on mechanical ventilation. Initially the mean arterial pressure (MAP) is randomly changed from 60 to 75 and then to 90 mmHg. Hemodynamic variables as blood pressure, cardiac output, pulmonary artery occlusion pressure (PAOP) will be registerd at each MAP-level, arterial line and pulmonary artery catheter (PAC) and the cardiac function will be assessed with conventional and strain echocardiography. Then, if the echocardiogram shows impaired LV-function will the patient be randomized to receive either Milrinone or Levosimendan. Hemodynamic variables as blood pressure, cardiac output, pulmonary artery occlusion pressure (PAOP) will be registered again, as well the cardiac function with conventional and strain echocardiography. Echocardiograms will be analysed for the determination of LV an RV strain. Potential differences between different levels of blood pressure as well as effects of Milrinone or Levosimendan on hemodynamic and echocardiographyc variables will be analysed.
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
TRIPLE
Enrollment
30
Norepinephrine will be given to the patient due to septic shock. After the inclusion we will change the dose of Norepinephrine to achieve 3 different MAP-levels, 60 mmHg, 75 mmHg and 90 mmHg.
Corotrope will be given and after 30 minutes of treatment the cardiac function will be assessed with echocardiography and systemic hemodynamics.
Levosimendan will be given and after 30 minutes of treatment the cardiac function will be assessed with echocardiography and systemic hemodynamics.
Central intensivvårdsavdelning Sahlgrenska University Hospital
Gothenburg, Västra Götaland County, Sweden
Changes in LV systolic strain
Changes in LV systolic function (global strain) will be assessed by 2D speckle tracking echocardiography
Time frame: 1.5 hours
Changes in RV systolic strain
Changes in RV systolic function (RV free wall strain) will be assessed by 2D speckle tracking echocardiography
Time frame: 1.5 hours
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