Left Atrium Reverse Remodeling in Patients With Mitral Valve Stenosis After Percutaneous Valvuloplasty: A 2- and 3-Dimensional Echocardiographic Study

• Published in: Revista española de cardiología (English ed.) 2013-01, Vol.66 (1), p.17-23
• Main Authors: Vieira, Marcelo L. Campos, Silva, Murilo C., Wagner, Camila R., Dallan, Luis A., Kajita, Luis J., Oliveira, Wercules A., Samesina, Nelson, Hotta, Viviane T., Mathias Jr, Wilson, Spina, Guilherme, Cardoso, Luis, Pastore, Carlos A., Tarasoutchi, Flávio, Grinberg, Max
• Format: Article
• Language: English
• Subjects: Adult; Balloon Valvuloplasty; Echocardiography; Echocardiography, Three-Dimensional; Ecocardiografía tridimensional; Electrocardiography; Estenosis de válvula mitral; Female; Heart Atria - diagnostic imaging; Heart Atria - surgery; Hemodynamics; Humans; Male; Middle Aged; Mitral valve stenosis; Mitral Valve Stenosis - diagnostic imaging; Mitral Valve Stenosis - surgery; Percutaneous valvuloplasty; Prospective Studies; Three-dimensional echocardiography; Treatment Outcome; Valvuloplastia percutánea
• ISSN: 1885-5857; 1885-5857
• DOI: 10.1016/j.rec.2012.05.004

The left atrium is clinically relevant in patients with mitral valve stenosis. The objective of this study was to analyze the effects of percutaneous balloon valvuloplasty on left atrium volumes and the left atrium emptying fraction in symptomatic mitral valve stenosis patients using 2-dimensional and real-time 3-dimensional transthoracic echocardiography. We carried out a prospective study of 28 consecutive symptomatic mitral valve stenosis patients, aged 22-72 (39 [11.5]) years, 24/28 (85.6%) women, who underwent to percutaneous balloon valvuloplasty between March 2009 and May 2011. Patients underwent 2- and 3-dimensional transthoracic and transesophageal echocardiography (atrial fibrillation) and invasive mitral valve area measurement. Echocardiographic analysis was performed before, 72h after and 12 months after percutaneous balloon valvuloplasty. The following parameters were analyzed: a) mitral valve area (2-dimensional planimetry, pressure half-time, 3-dimensional echocardiography, invasive hemodynamic measurement); b) indexed left atrium maximum and indexed minimum volumes, and c) left atrium emptying fraction. The 3-dimensional parameters of the mitral valve stenosis patients before and 72h and 12 months after percutaneous balloon valvuloplasty were as follows: a) mitral valve area: 0.9 (0.1) cm2; 1.8 (0.2) cm2 (P