Increasing Levels of Positive End-expiratory Pressure Improve the Left Ventricular Strain
| Autor: | María Dolores Pola Gallego de Guzmán, Antonio Cárdenas-Cruz, María C. Iniesta-Carricondo, Manuel Ruiz-Bailén, Jesús Cobo-Molinos, Ana Castillo-Rivera |
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| Rok vydání: | 2017 |
| Předmět: |
Male
Pulmonary and Respiratory Medicine medicine.medical_specialty Heart Ventricles medicine.medical_treatment Shock Cardiogenic Diastole 030204 cardiovascular system & hematology Positive-Pressure Respiration Ventricular Dysfunction Left 03 medical and health sciences 0302 clinical medicine Internal medicine medicine Humans Radiology Nuclear Medicine and imaging Positive end-expiratory pressure Aged Mechanical ventilation Ejection fraction business.industry Cardiogenic shock Mean age respiratory system medicine.disease respiratory tract diseases Treatment Outcome 030228 respiratory system Echocardiography Shock (circulatory) Cardiology Female medicine.symptom business therapeutics Left ventricular strain circulatory and respiratory physiology |
| Zdroj: | Journal of Thoracic Imaging. 32:333-339 |
| ISSN: | 0883-5993 |
| Popis: | PURPOSE The goal of this study was to evaluate possible changes in the left myocardial performance of patients with cardiogenic shock (CS) during ascending levels of positive end-expiratory pressure (PEEP) using speckle-tracking echocardiography. MATERIALS AND METHODS This was an interventional clinical study performed on CS patients under mechanical ventilation. These patients underwent echocardiography after 15 to 30 minutes of progressive increases in PEEP zero end-expiratory pressure (ZEEP) (PEEP 5, PEEP 10, PEEP 15 cm H2O). We evaluated the changes caused by these increasing levels of PEEP on the E/E' ratio and the parameters of left ventricular systolic and diastolic functions, including longitudinal strain (S) and strain rate (SR). Analyses of mean values were carried out using analysis of variance. RESULTS A total of 65 CS patients were included. Their mean age was 68.58±14.61 years. Progressive increases in PEEP induced a significant decrease in the E/E' ratio (ZEEP=12.87±1.81; PEEP=5, 8.39±3.61; PEEP=10, 6.34±1.73; and PEEP=15, 7.10±0.37; P |
| Databáze: | OpenAIRE |
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