Related Experiment Video
Updated: Aug 6, 2026

Catheter-based Endovascular Angioplasty for Fibrosing Mediastinitis-associated Pulmonary Vein Stenosis
Published on: August 26, 2025
Impact of effective valvotomy in mitral stenosis on pulmonary venous flow pattern
Solange Bernardes Tatani1, Orlando Campos, Valdir Ambrosio Moises
1Escola Paulista de Medicina, UNIFESP, Federal University of São Paulo, São Paulo, Brazil. solange.tatani@fleury.com.br
Aims:
Transesophageal Doppler echocardiography (TEE) is a useful tool to investigate pulmonary venous flow (PVF) velocity, which is altered in patients with mitral stenosis (MS). This study used TEE to analyze the variations in the PVF pattern after successful valvar dilatation in MS patients.
Methods/Results:
A total of 15 MS patients, mean age 27.2 years, underwent effective percutaneous balloon valvotomy (PBV). All were submitted to TEE before and after PBV. TEE assessed systolic (SPFV) and diastolic (DPFV) peak flow velocities and their ratio (SPFV/DPFV), time-velocity integrals (STVI and DTVI) and their ratio, and diastolic flow deceleration (DFD). Valvotomy yielded statistically significant increases (P < or = 0.05) in the SPFV: increase on average by 67% and STVI by 120%, as well as in the diastolic component: increased on average by 35%, DTVI by 33%, and DFD by 75%.
Conclusion:
TEE demonstrated that PBV induced a global increase in velocities of PVF, probably related to improvement of left atrial emptying.
Related Concept Videos
Mitral Stenosis I: Introduction
Mitral Stenosis III: Medical Management
Mitral Stenosis IV: Nursing Management
Mitral Stenosis II: Clinical features and Diagnostic Tests
Mitral Valve Prolapse I: Introduction
Mitral Valve Prolapse II: Assessment and Management

