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Simplified summary of changes in extracellular matrix proteins in patients with AF compared with patients in sinus rhythm
| Collagen type I | Collagen type III | Fibronectin | |
| Lone AF | Increase | No significant change | No significant change |
| MVD+AF | Increase | Increase | No significant change |
AF, atrial fibrillation; MVD+AF, atrial fibrillation with underlying mitral valve disease (MVD+AF).
