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[Doppler echocardiography in chronic right ventricular pressure load]
W Weihs1, R Picha, H Schuchlenz
12. Medizinische Abteilung, Universität Graz.
Deutsche Medizinische Wochenschrift (1946)
|August 5, 1994
Summary
Doppler-echocardiography (DEC) accurately assesses pulmonary hypertension severity and right ventricular overload. This non-invasive method correlates well with cardiac catheterization, offering valuable diagnostic insights.
Area of Science:
- Cardiology
- Diagnostic Imaging
Background:
- Pulmonary hypertension (PH) poses diagnostic challenges.
- Assessing right ventricular (RV) load is crucial for PH management.
Purpose of the Study:
- To evaluate the efficacy of Doppler-echocardiography (DEC) in semiquantitatively assessing PH severity and RV overload.
- To compare DEC findings with cardiac catheterization (CC) data.
Main Methods:
- DEC was performed in 61 patients with PH (causes: COPD, mitral valve disease, dilated cardiomyopathy).
- A subcostal approach allowed assessment of RV wall thickness, size, and inferior vena cava diameter.
- Severity grading (0-III) was established based on RV signs of overload.
Main Results:
- DEC severity grading strongly correlated with pulmonary arterial pressure levels (Grade 0: 18.7 mmHg, Grade II: 29.9 mmHg, Grade III: 41.1 mmHg).
- Systolic pulmonary artery pressure measured by DEC correlated highly with CC (r=0.92, P<0.001).
- DEC correctly identified manifest PH in most patients across severity grades.
Conclusions:
- DEC provides reliable semiquantitative assessment of chronic RV overload in pulmonary hypertension.
- DEC offers accurate systolic pulmonary artery pressure measurements, comparable to cardiac catheterization.