| Autor: |
José Carlos Estival, Tarastchuk, Enio Eduardo, Guérios, Sônia, Perreto, Ronaldo da Rocha Loures, Bueno, Paulo Maurício Piá, de Andrade, Deborah Cristina, Nercolini, Alvaro Luiz Aranha, Pacheco, Frederico Thomaz, Ultramari, Alisson Moço, Faidiga |
| Rok vydání: |
2005 |
| Předmět: |
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| Zdroj: |
Arquivos brasileiros de cardiologia. 87(3) |
| ISSN: |
1678-4170 |
| Popis: |
To investigate potential clinical, echocardiographic and/or hemodynamic predictors of the regression of electrocardiographic (ECG) signs of left atrial enlargement (LAE) after successful percutaneous mitral valvuloplasty (PMV).We studied 24 patients (75% female, mean age =37.1 +/- 11.9 years) with moderate to severe mitral stenosis (MS), sinus rhythm (SR) and ECG signs of LAE who underwent successful PMV between 2002 and 2004. At least 6 months after the procedure (388.2 +/- 192.9 days), the patients returned for clinical, ECG and echocardiographic follow-up. They were then divided in 2 groups: patients of group 1 (n = 8; 33.3%) still had ECG signs of LAE, and patients of group 2 (n = 16; 66.6%), had normal P wave. A multivariate analysis of clinical, ECG, echocardiographic and hemodynamic variables was performed.The mitral valve area (MVA) increased from 1.12 +/- 0.15 cm2 to 1.9 +/- 0.35 cm2 immediately after the procedure (p0.0001) and decreased to 1.89 +/- 0.41 cm2 at follow-up (p = NS). Left atrium diameter decreased from 48 +/- 2.9 mm pre-procedure to 43 +/- 4.8 mm at follow-up (p = 0.0001). P-wave duration decreased from 0.12 +/- 0.01 sec pre-PMV to 0.09 +/- 0.02 sec at follow-up (p = 0.0001). An MVAor = 1.7 cm2 at follow-up was the only independent predictor of a normal P-wave after PMV (p=0.02).ECG changes suggestive of LAE regress in the majority of patients with MS and sinus rhythm that undergo a successful PMV. An MVAor = 1.7 cm2 at late follow-up was found to be an independent predictor of such normalization. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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