Pulmonary venous systolic flow fraction in patients with mitral regurgitation: transoesophageal echocardiography findings in relation to haemodynamic and angiographic evaluation
| Autor: | Peter Eriksson, D. Teien, S. Holm, Christer Backman, Kjell Karp |
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| Rok vydání: | 1995 |
| Předmět: |
Adult
Male medicine.medical_specialty Physiology Hemodynamics Severity of Illness Index Pulmonary vein Internal medicine Mitral valve Heart rate medicine Humans Pulmonary Wedge Pressure Aged Echocardiography Doppler Pulsed Mitral regurgitation medicine.diagnostic_test business.industry Mitral Valve Insufficiency General Medicine Blood flow Middle Aged Radiography Blood pressure medicine.anatomical_structure Angiography Linear Models Cardiology Female business Blood Flow Velocity Echocardiography Transesophageal |
| Zdroj: | Clinical Physiology. 15:105-117 |
| ISSN: | 1365-2281 0144-5979 |
| DOI: | 10.1111/j.1475-097x.1995.tb00435.x |
| Popis: | In patients with mitral regurgitation (MR), pulmonary venous systolic flow fraction (PVSFfr) recorded using pulsed Doppler transoesophageal echocardiography (TEE) was compared with PVSFfr in normal subjects, to angiographic grading and to haemodynamic parameters. PVSfr was calculated as the systolic flow velocity integral divided by total inflow integral. PVSfr is negative when systolic flow is reversed. Forty patients with MR were studied. PVSFfr < 0 was 100% sensitive for angiographic severe MR (specificity 83%). In 35 patents heart rate differed by 10 bpm or less between TEE and cath, either at rest or during stress. PVSFfr was correlated with angiographic grade (r = -0.69, P < 0.0001), with mean PCW (r = -0.61, P < 0.0001), with the v-wave (r = -0.72, P < 0.0001), with systolic blood pressure (r = 0.48, P < 0.005) and with left atrial diameter (r = -0.52, P < 0.005). Stepwise forward multiple linear regression analysis revealed the v-wave, angiographic grading and systolic blood pressure to be independent predictors of PVSFfr. PVSFfr differed in normal subjects, patients with 0-2+ and patients with 3-4+ regurgitation. PVSFfr is a valuable index in assessing mitral regurgitation. This index may be less dependent on equipment and operator than colour flow imaging. |
| Databáze: | OpenAIRE |
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