Tissue Doppler Assessment of Longitudinal Right and Left Ventricular Strain and Strain Rate in Pulmonary Artery Hypertension
| Autor: | Raymond L. Benza, Farhat Mehmood, Ligang Fang, Anurag Singh, Sanjay Rajdev, Vinod Patel, Navin C. Nanda, Srinivas Vengala, Robert C. Bourge, Velayudhan Dasan |
|---|---|
| Rok vydání: | 2006 |
| Předmět: |
medicine.medical_specialty
Heart disease business.industry Diastole Stroke volume medicine.disease Pulmonary hypertension medicine.artery Internal medicine Pulmonary artery cardiovascular system Cardiology Medicine Radiology Nuclear Medicine and imaging cardiovascular diseases Systole Right Ventricular Free Wall Cardiology and Cardiovascular Medicine business Pulmonary wedge pressure |
| Zdroj: | Echocardiography. 23:872-879 |
| ISSN: | 0742-2822 |
| Popis: | Tissue Doppler imaging (TDI) in 38 adult patients with pulmonary artery hypertension of varied etiology and normal left ventricular systolic function by two-dimensional transthoracic echocardiography showed significantly reduced peak systolic strain (SS) in all three segments of left ventricular free wall and ventricular septum and two of three segments of right ventricular free wall when compared to 29 adults with no clinical or echocardiographic evidence of heart disease and normal left and right ventricular systolic function. A similar reduction in peak diastolic strain (DS) was also noted in all three segments of left ventricular free wall and ventricular septum and one of three segments of right ventricular free wall. This reduction in strain indices in patients with pulmonary hypertension was noted irrespective of whether right ventricular systolic function was normal or reduced as assessed by two-dimensional transthoracic echocardiography. SS and DS rates also showed reductions in patients with pulmonary artery hypertension. Our study shows the potential value of TDI indices in identifying reduced regional left ventricular systolic and diastolic longitudinal function in patients with pulmonary artery hypertension and normal left ventricular systolic function by two-dimensional transthoracic echocardiography. This reduction in left ventricular function was noted in patients with both normal and reduced right ventricular systolic functions by two-dimensional echocardiography. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|