Abstract
Background
To evaluate the influence of changes in mitral valve area (MVA) and left atrial pressure on pulmonary vein flow (PVF) we analyzed PVF with transesophageal echocardiography (TEE) before, after and one-year after percutaneous mitral valvuloplasty (PMV) in patients with mitral stenosis (MS) in sinus rhythm.
Methods
PMV was guided with TEE. Follow-up TEE was done about one year after PMV. MVA and transmitral mean gradient (TMG) were measured. Systolic velocity (S), diastolic velocity (D), atrial reversal velocity (AR), their time-velocity integral (S-TVI, D-TVI, AR-TVI) and their ratio (S/D ratio, S-TVI/D-TVI ratio were evaluated.
Results
The number of patients was twenty-two (F:20). The age was 39±9 years (range:26-64). Follow-up duration was 16±6 months (range:7-28). MVA increased from 0.9±0.2 cm2 to 1.9±0.3 cm2 after PMV and decreased to 1.7±0.3 cm2 on follow-up TEE significantly. TMG decreased from 15.4±4.3 mmHg to 5.5±1.9 mmHg after PMV and was 6.2±2.4 mmHg on follow-up. S increased significantly on follow-up at both pulmonary vein (PV). D increased on follow-up at left PV. S/D ratio increased on follow-up at both PV. AR increased on follow-up at both PV. S-TVI increased after PMV at left PV and increased on follow-up at both PV. D-TVI had no change. S-TVI/D-TVI ratio increased on follow-up at left PV. AR-TVI increased on follow-up at right PV.