|
| HOME | SUBSCRIPTIONS | CURRENT ISSUE | PAST ISSUES | CARDIOSOURCE | SEARCH | HELP | FEEDBACK |
|
|
|
|||||||||
|
|||||||||||
|
J Am Coll Cardiol, 2003; 41:1716-1720, doi:10.1016/S0735-1097(03)00306-1 © 2003 by the American College of Cardiology Foundation |
akowska-Kap
on, MD, PhD*,*
* Department of Cardiology Regional District Hospital, Kielce, Poland
Department of Internal Medicine and Cardiology Medical University of Warsaw, Warsaw, Poland
Manuscript received September 13, 2002; revised manuscript received December 9, 2002, accepted February 6, 2003.
* Reprint requests and correspondence: Dr. Beata Woakowska-Kapon, Swietokrzyskie Centrum Kardiologii, ul. Grunwaldzka 45, 25-736 Kielce, Poland.
energo_kap{at}poczta.onet.pl
OBJECTIVES: The purpose of this study was to evaluate left atrial mechanical function recovery and plasma atrial natriuretic peptide (ANP) release following successful cardioversion of persistent atrial fibrillation (AF).
BACKGROUND: Atrial fibrillation is characterized by functional deterioration, loss of atrial contraction, and elevation of plasma ANP levels. The response of ANP release toward atrial mechanical function after cardioversion of AF has not been fully examined.
METHODS: We examined 29 patients with successfully cardioverted persistent AF in whom sinus rhythm was maintained for at least 30 days after cardioversion. We assessed mechanical function of the left atrium at 24 h and 7 and 30 days after cardioversion and evaluated plasma ANP level at the same time. Atrial mechanical function was assessed during echocardiographic examination by means of the peak velocity of the transmitral A-wave, early transmitral to atrial flow velocity ratio, and atrial filling fraction (AFF). The plasma ANP level was determined by the radioimmunoassay method.
RESULTS: Plasma ANP levels were significantly reduced from 59.4 ± 16.6 pg/ml to 31.1 ± 9.2 pg/ml at 24 h after successful cardioversion. Within 30 days, we noted progressive improvement of atrial systolic function (increase in AFF from 21% to 31%, p < 0.05). At the same time, plasma ANP levels gradually increased from 31.1 ± 9.2 pg/ml at 24 h to 36.9 ± 12.8 pg/ml on day 30 following cardioversion (p < 0.05).
CONCLUSIONS: Plasma ANP levels significantly decreased in patients with persistent AF after successful cardioversion. In the 30 days after cardioversion, gradual elevation of plasma ANP concentration was observed concomitantly with an increase of AFF. Plasma ANP release after successful cardioversion of persistent AF might be due to recovery of atrial mechanical function.
| ||||||||||||
This article has been cited by other articles:
|
|
 |
|
  F. Sacher, J.-B. Corcuff, P. Schraub, V. Le Bouffos, A. Georges, S. O. Jones, S. Lafitte, P. Bordachar, M. Hocini, J. Clementy, et al. Chronic atrial fibrillation ablation impact on endocrine and mechanical cardiac functions Eur. Heart J., May 2, 2008; 29(10): 1290 - 1295. [Abstract] [Full Text] [PDF]
|
|
|
|
 |
|
 A Nergardh and M Frick Perceived heart rhythm in relation to ECG findings after direct current cardioversion of atrial fibrillation Heart, September 1, 2006; 92(9): 1244 - 1247. [Abstract] [Full Text] [PDF]
|
|
|
|
 |
|
 Y.-C. Wang, J.-L. Lin, J.-J. Hwang, M.-S. Lin, C.-D. Tseng, S. K. S. Huang, and L.-P. Lai Left Atrial Dysfunction in Patients With Atrial Fibrillation After Successful Rhythm Control for > 3 Months Chest, October 1, 2005; 128(4): 2551 - 2556. [Abstract] [Full Text] [PDF]
|
|
|
|
 |
|
 P. T. Ellinor, A. F. Low, K. K. Patton, M. A. Shea, and C. A. MacRae Discordant atrial natriuretic peptide and brain natriuretic peptide levels in lone atrial fibrillation J. Am. Coll. Cardiol., January 4, 2005; 45(1): 82 - 86. [Abstract] [Full Text] [PDF]
|
|
| HOME | SUBSCRIPTIONS | CURRENT ISSUE | PAST ISSUES | CARDIOSOURCE | SEARCH | HELP | FEEDBACK |
