Evaluation of Right-Ventricular Function by Doppler Echocardiography in Patients with Chronic Respiratory Failure
| Autor: | T Iwasaki, Takayuki Yoshinaga, Keizo Yamaguchi, Kohno S, Yoshiyuki Miyahara, K Yakabe, Masahiro Shikuwa, S Ikeda, Tatsuji Naito, Eri Nishimura |
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| Rok vydání: | 1999 |
| Předmět: |
Male
medicine.medical_specialty Systole Hypertension Pulmonary Hemodynamics Blood Pressure Pulmonary Artery 030204 cardiovascular system & hematology Doppler echocardiography Biochemistry 03 medical and health sciences 0302 clinical medicine Afterload Internal medicine medicine Humans cardiovascular diseases Tuberculosis Pulmonary Aged medicine.diagnostic_test business.industry Biochemistry (medical) Cell Biology General Medicine Middle Aged medicine.disease Pulmonary hypertension Echocardiography Doppler medicine.anatomical_structure Blood pressure Respiratory failure Ventricle 030220 oncology & carcinogenesis Chronic Disease Circulatory system Ventricular Function Right cardiovascular system Cardiology Female Respiratory Insufficiency business |
| Zdroj: | Journal of International Medical Research. 27:65-73 |
| ISSN: | 1473-2300 0300-0605 |
| DOI: | 10.1177/030006059902700202 |
| Popis: | In patients with chronic respiratory failure, right-ventricular function was non-invasively evaluated by Doppler echocardiography. A total of 31 patients (16 men, 15 women; mean age 65.8 ± 7.12 years) with pulmonary tuberculosis sequelae who had received home oxygen therapy during the preceding 6 or more months, were studied. Right-ventricular inflow and outflow waveforms were recorded, and right-ventricular function was evaluated using a new Doppler index combining systolic and diastolic function. On continuous wave Doppler echocardiography, estimated systolic pulmonary arterial pressure was calculated from the gradient between the right atrium and right ventricle. There was no correlation between the new Doppler index and systolic pulmonary arterial pressure, and some patients showed high index values despite low systolic pulmonary arterial pressure. The new Doppler index facilitated evaluation of ventricular function irrespective of right-ventricular afterload. |
| Databáze: | OpenAIRE |
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