Abstract | BACKGROUND: Hemodynamic evaluation is crucial for the management of patients with pulmonary hypertention. Clinicians often prefer a rapid and non-invasive method. This study aimed to examine the feasibility of transthoracic echocardiography for the measurements of hemodynamic parameters in patients with pulmonary hypertension. METHODS: A prospective single-center study was conducted among 42 patients with pulmonary hypertension caused by different diseases. Transthoracic echocardiography and right-heart catheterization were performed within 24 hours. Pulmonary artery systolic, diastolic and mean pressure ( PASP, PADP and PAMP), cardiac output (CO), and pulmonary capillary wedge pressure (PCWP) were measured by both methods. A linear correlation and a Bland-Altman analysis were performed to compare the two groups of hemodynamic parameters. RESULTS: A good correlation was found between invasive and non-invasive measurements for PASP (r = 0.96), PADP (r = 0.85), PAMP (r = 0.88), CO (r = 0.82), and PCWP (r = 0.81). Further agreement analysis done by the Bland-Altman method showed that bias and a 95% confidence interval for PASP, PADP, and CO were clinically acceptable while great discrepancies existed for PAMP and PCWP. CONCLUSIONS: The non-invasive measurements by PASP, PADP, and CO in patients with pulmonary hypertension correlate well with the invasive determinations. Transthoracic echocardiography (TTE) was inappropriate for estimating PCWP and PAMP.
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Authors | Zhuang Tian, Yong-Tai Liu, Quan Fang, Chao Ni, Tai-Bo Chen, Li-Gang Fang, Peng Gao, Xiu-Chun Jiang, Meng-Tao Li, Xiao-Feng Zeng |
Journal | Chinese medical journal
(Chin Med J (Engl))
Vol. 124
Issue 12
Pg. 1796-801
(Jun 2011)
ISSN: 2542-5641 [Electronic] China |
PMID | 21740835
(Publication Type: Comparative Study, Journal Article)
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Topics |
- Adolescent
- Adult
- Cardiac Catheterization
- Cardiac Output
- Echocardiography
- Female
- Hemodynamics
- Humans
- Hypertension, Pulmonary
(physiopathology)
- Male
- Middle Aged
- Prospective Studies
- Pulmonary Wedge Pressure
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