Factors associated with atrial fibrillation in rheumatic mitral stenosis.
MetadataShow full item record
Atrial fibrillation is a complication of mitral valve stenosis that causes several adverse neurologic outcomes. Our objective was to establish a mathematical model to predict the risk of atrial fibrillation in patients with mitral stenosis.Of 819 patients with mitral stenosis who were screened, 603 were enrolled in the study and grouped according to whether they were in sinus rhythm or atrial fibrillation. Demographic, echocardiographic, and hemodynamic data were recorded. Logistic regression models were constructed to identify the relative risks for each contributing factor and calculate the probability of developing atrial fibrillation. Receiver operating characteristic curves were plotted.Two hundred (33%) patients had atrial fibrillation; this group was older, in a higher functional class, more likely to have suffered previous thromboembolic events, and had significantly larger left atrial diameters, lower ejection fractions, and lower left atrial appendage emptying flow velocity. The factors independently associated with atrial fibrillation were left atrial strain (odds ratio?=?7.53 [4.47-12.69], p?<?0.001), right atrial pressure (odds ratio?=?1.09 [1.02-1.17], p?=?0.01), age (odds ratio?=?1.14 [1.05-1.25], p?=?0.002), and ejection fraction (odds ratio?=?0.92 [0.87-0.97], p?=?0.003). The area under the curve for the combined receiver operating characteristic for this model was 0.90?آ±?0.12.Age, right atrial pressure, ejection fraction, and left atrial strain can be used to construct a mathematical model to predict the development of atrial fibrillation in rheumatic mitral stenosis.
Showing items related by title, author, creator and subject.
Changes in Serum NT-Pro BNP and Left Atrial BNP Levels after Percutaneous Transvenous Mitral Commissurotomy in Sinus Rhythm Versus Atrial Firilation. Pourafkari, L; Seyedhosseini, S; Kazemi, B; Esmaili, H; Aslanabadi, N (2014)Natriuretic peptides are secreted from the heart in response to increased wall stress. Their levels are expected to be increased in patients with mitral stenosis (MS) due to high left atrium (LA) pressure and pulmonary ...
The effects of percutaneous mitral balloon valvuloplasty on the left atrial appendage function in patients with sinus rhythm and atrial fibrillation. Aslanabadi, N|| Jafaripour, I|| Toufan, M|| Sohrabi, B|| Separham, A|| Madadi, R|| Feazpour, H|| Asgharzadeh, Y|| Ahmadi, M|| Safaiyan, A|| Ghafari, S (2015)Mitral stenosis (MS) causes structural and functional abnormalities of the left atrium (LA) and left atrial appendage (LAA), and studies show that LAA performance improves within a short time after percutaneous transvenous ...
The significance of the left atrial volume index in prediction of atrial fibrillation recurrence after electrical cardioversion Toufan, M; Kazemi, B; Molazadeh, N (2017)Introduction: Electrical cardioversion (ECV) is a safe method for the treatment of atrial fibrillation. It seems that left atrial volume index (LAVI) could be a good marker in predicting the success of ECV. The purpose of ...