Shape of the right ventricular outflow Doppler envelope and severity of pulmonary hypertension
| Autor: | Angel López-Candales, Kathy Edelman |
|---|---|
| Rok vydání: | 2011 |
| Předmět: |
Adult
Male medicine.medical_specialty Heart Ventricles Hypertension Pulmonary Doppler echocardiography Sensitivity and Specificity Severity of Illness Index Ventricular Outflow Obstruction symbols.namesake medicine.artery Internal medicine Severity of illness medicine Humans Ventricular outflow tract Radiology Nuclear Medicine and imaging Aged Aged 80 and over Analysis of Variance Receiver operating characteristic medicine.diagnostic_test business.industry Ultrasonography Doppler General Medicine Middle Aged medicine.disease Pulmonary hypertension Blood pressure Pulmonary artery Ventricular Function Right symbols Cardiology Female Radiology Cardiology and Cardiovascular Medicine business Doppler effect |
| Zdroj: | European Heart Journal - Cardiovascular Imaging. 13:309-316 |
| ISSN: | 2047-2412 2047-2404 |
| Popis: | Background It is now well known that timing of right ventricular outflow tract (RVOT) spectral Doppler signals change with increasing pulmonary hypertension severity. We devised a study to determine whether visual assessment of these RVOT Doppler signals can be useful identifying the severity of pulmonary hypertension. Methods Visual inspection of pulsed RVOT Doppler signals from 120 consecutive patients (mean age of 55 ± 12, range 29–89 years; 45 males); with a mean pulmonary artery systolic pressure (PASP) of 59 ± 29, (ranging from 18 to 150 mmHg), of whom 78 patients had PASP >40 mmHg, was performed and correlated with standard echo Doppler variables of right ventricular performance. Results Visual inspection of RVOT spectral Doppler signals from the 120 patients showed four dynamic patterns and on a stepwise multiple regression analysis, PASP was the only echocardiographic variable that correlated with these different types of RVOT spectral Doppler signals. Furthermore, receiver operator curve analysis of these RVOT spectral Doppler signals correlated well with different ranges of PASP. Conclusions Visual assessment of RVOT spectral signals demonstrates the presence of four dynamic patterns, independent of the aetiology of the pulmonary hypertension, that not only correlate with the severity of pulmonary hypertension, but also are useful in identifying a range of PASP with great accuracy that minimizes subjective interpretation. These simple visual assessments of RVOT Doppler signals can be done routinely when evaluating patients with pulmonary hypertension without the need of additional sophisticated equipment. |
| Databáze: | OpenAIRE |
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