Usefulness of C-reactive protein in predicting early and late recurrences after atrial fibrillation ablation.
We studied the C-reactive protein level and its predictive value for early and late arrhythmia recurrences after atrial fibrillation (AF) ablation. We analysed data from 125 consecutive patients (52% with paroxysmal AF) who underwent a first AF ablation. C-reactive protein level was determined at baseline and at Days 1, 2, and 3 post-AF ablation. An early recurrence (ER) was defined as any arrhythmia occurring within the first month following the index ablation. Sixty-eight patients (54%) experienced ER. Twenty-nine patients were re-ablated for ER within the first month and were not included for the long-term follow-up analysis. Of the remaining 96 patients, 59 (61%) experienced late recurrences. C-reactive protein level increased significantly after AF ablation with a peak (40 +/- 32 mg/L) occurring 2 days after the index procedure. Patients without ER had a significant higher C-reactive protein level (49 +/- 52 vs. 32 +/- 22 mg/L, P=0.02) compared with patients without ER. However, the C-reactive protein level was similar in patients with or without late recurrences. C-reactive protein level was the only independent predictor of ERs (P = 0.03). C-reactive protein level increased significantly after AF ablation. High C-reactive protein level was associated with fewer early arrhythmia recurrences. No relationship was found between C-reactive protein level and late arrhythmia recurrences.
Lellouche
Nicolas
N
Hôpital Henri Mondor Fédération de Cardiologie, Assistance Publique Hôpitaux de Paris, Université de Médecine Paris XII, Créteil, France. nicolellouche@yahoo.com
Sacher
Frederic
F
Wright
Matthew
M
Nault
Isabelle
I
Brottier
Jean
J
Knecht
Sébastien
S
Matsuo
Seiichiro
S
Lomas
Oliver
O
Hocini
MéLèZe
M
Haïssaguerre
Michel
M
Jaïs
Pierre
P
D000328:Adult; D000368:Aged; D001281:Atrial Fibrillation / Q000097:blood* / Q000175:diagnosis / Q000601:surgery*; D015415:Biomarkers / Q000097:blood; D002097:C-Reactive Protein / Q000378:metabolism*; D017115:Catheter Ablation; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D008297:Male; D008875:Middle Aged; D015999:Multivariate Analysis; D011237:Predictive Value of Tests; D011379:Prognosis; D012008:Recurrence; D012189:Retrospective Studies
D015415:Biomarkers; D002097:C-Reactive Protein