Lack of correlation between left ventricular outflow tract velocity time integral and stroke volume index in mechanically ventilated patients
| Autor: | A. Núñez, B.L. Matamala, M Chana, C.M. Parra, D. Ballesteros, Ó. Martínez-González, A. Hernández, M.A. Alonso, C. Martínez-Díaz, J Luján, R Blancas, D. Rodríguez-Serrano |
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| Rok vydání: | 2019 |
| Předmět: |
Male
medicine.medical_specialty Cardiac output medicine.medical_treatment Hemodynamics 030204 cardiovascular system & hematology Doppler echocardiography Critical Care and Intensive Care Medicine Ventricular Function Left 03 medical and health sciences 0302 clinical medicine Internal medicine Intensive care Humans Medicine Ventricular outflow tract Prospective Studies Correlation of Data Aged Mechanical ventilation medicine.diagnostic_test business.industry Pulmonary artery catheter Stroke Volume 030208 emergency & critical care medicine Stroke volume Respiration Artificial Cardiology Female business Blood Flow Velocity |
| Zdroj: | Medicina Intensiva. 43:73-78 |
| ISSN: | 0210-5691 |
| Popis: | Objective To assess the correlation between left ventricular outflow tract velocity time integral (LVOT VTI) and stroke volume index (SVI) calculated by thermodilution methods in ventilated critically ill patients. Design A prospective, descriptive, multicenter study was performed. Setting Five intensive care units from university hospitals. Patients Patients older than 17 years needing mechanical ventilation and invasive hemodynamic monitoring were included. Interventions LVOT VTI was measured by pulsatile Doppler echocardiography. Calculations of SVI were performed through a floating pulmonary artery catheter (PAC) or a Pulse index Contour Cardiac Output (PiCCO®) thermodilution methods. Main variables The relation between LVOT VTI and SVI was tested by linear regression analysis. Results One hundred and fifty-six paired measurements were compared. Mean LVOT VTI was 20.83 ± 4.86 cm and mean SVI was 41.55 ± 9.55 mL/m2. Pearson correlation index for these variables was r = 0.644, p Conclusions LVOT VTI could be a complementary hemodynamic evaluation in selected patients, but does not eliminate the need for invasive monitoring at the present time. The weak correlation between LVOT VTI and invasive monitoring deserves additional assessment to identify the factors affecting this disagreement. |
| Databáze: | OpenAIRE |
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