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Table 4 Comparison between patients according to the type of AF regarding demographic data and atrial fibrosis

From: The use of MRI in quantification of the atrial fibrosis in patients with rheumatic mitral disease

  Paroxysmal AF (n = 10) Persistent AF (n = 9) Long-standing persistent AF (n = 11) P value
Gender, female 6 (60%) 6 (66.7%) 8 (72.7%) 0.544
DM 0 2 (22.2%) 3 (27.3%) 0.103
HTN 0 1 (11.1%) 1 (9.1%) 0.440
CVS 0 0 1 (3.3%) 0.248
Presence of fibrosis
 Mild 9 (90%) 0 0 < 0.001
 Moderate 1 (10%) 5 (55.6%) 0 < 0.001
 Severe 0 4 (44.4%) 11 (100%) < 0.001
Distribution of fibrosis
 Left atrial walls     
  Posterior wall 7 (70%) 8 (88.9%) 11 (100%) 0.048
  Septum 3 (30%) 6 (66.7%) 11 (100%) 0.001
  Anterior wall 0 3 (33.3%) 11 (100%) < 0.001
 Right atrium involvement 2 (20%) 6 (66.7%) 11 (100%) < 0.001
  1. DM diabetes mellitus, HTN hypertension, CVS cerebro-vascular stroke