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Prognostički značaj elektromehaničke funkcije leve pretkomore za pojavu rekurentne atrijalne fibrilacije, lečene radiofrekventnom terapijom

Prognostic value of electromechanical function of left atrium for appearance of recurent atrial fibrilation treated with radiofrequent therapy

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Author
Đikić, Dijana M.
Mentor
Simić, Dragan
Committee members
Pavlović, Siniša
Ristić, Arsen
Perić, Vladan
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Abstract
Cilj ove studije je bio da proceni prognostički značaj kašnjenja električnog impulsa unutar leve pretkomore i između dve pretkomore za ponovno javljanje atrijalne fibrilacije nakon lečenja radiofrekventnom izolacijom plućnih vena (RFPVI) I da ispita elektromehaničko remodelovanje leve pretkomore. Metode: Ukupno je 64 bolesnika lečeno prvom radiofrekventnom izolacijom plućnih vena zbog simptomatske, rezistentne na lekove nevalvularne paroksizmalne atrijalne fibrilacije. Svi pacijenti su imali transtoraksni ehokardiografski pregled pre, neposredno nakon, 1,3,6, i 12 meseci nakon RFPVI. Ukupna frakcija leve pretkomore (LA TEF), kašnjenje električnog impulsa unutar leve, desne pretkomore i između dve pretkomore su računati kod svih pacijenata. Rezultati. Tokom praćenja od 12 meseci rekurentna atrijalna fibrilacija se javila kod 17 pacijenata (26%). Na kontroli 12meseci u grupi bez pojave recidiva u odnosu na početne vrednosti LA TEF se značajno popravio (48.21±5.57 vs 48.33±5.56 vs 48.91±6....88 vs 49.29±5.57 vs 51.41±5.92 vs 52.9±6.79, p<0.05). Kašnjenje impulsa unutar leve pretkomore (25.47±6.71 vs 25.91±6.7 vs 22.57±5.61 vs 19.97±7.08 vs 16.45±6.74 vs 14.26±6.62, p=0.017), kao i između dve pretkomore (58.49±9.93 vs 58.61±10.3 vs 51.8±10.31 vs 44.29±11.04 vs 36.36±10.61 vs 30.21±9.49, p=0.001) je značajno smanjeno. Multivarijantna logistička regresija je pokazala da je međupretkomorsko kašnjenje impulsa nezavisni predictor kasnog recidiva atrijane fibrilacije nakon RFPVI (p=0.03, OR 1.15 95% CI OR 1.01-1.3)...

The aim of this study was to investigate prognostic value of: inter and intra atrial conduction time to predict atrial fibrillation (AF) recurrence after radiofrequency catheter ablation (RFCA), and to assess electromechanical remodelling of left atrium. Methods. A total of 64 patients underwent their first RFCA for symptomatic drug refractory non valvuar paroxysmal AF. All patients had transtoracic echocardiography before, after, 1, 3, 6 and 12 months after RFCA. Left atrial total emptyng fraction (LA TEF), left intra, right intra and interatrial conduction time were calculated in all patients. Results. During follow up of 12 months recurrent atrial arrhythmia was found in 17 (26%) patients. At 12th month visit in non recurrent group compared to baseline LA TEF significantly increased (48.21±5.57 vs 48.33±5.56 vs 48.91±6.88 vs 49.29±5.57 vs 51.41±5.92 vs 52.9±6.79, p<0.05). Both intra left (25.47±6.71 vs 25.91±6.7 vs 22.57±5.61 vs 19.97±7.08 vs 16.45±6.74 vs 14.26±6.62, p=0.017), and ...interatrial conduction time (58.49±9.93 vs 58.61±10.3 vs 51.8±10.31 vs 44.29±11.04 vs 36.36±10.61 vs 30.21±9.49, p=0.001) significantly decreased. In multivariante logistic regression analysis, only interatrial conduction time was found as independent predictor of late recurrence of atrial fibrillation after RFCA (p=0.03, OR 1.15 95% CI OR 1.01-1.3)...

Faculty:
Универзитет у Београду, Медицински факултет
Date:
26-09-2018
Keywords:
Unutarpretkomorsko kašnjenje impulsa / Interatrial conduction time / Međupretkomorsko kašnjenje impulsa / Radiofrekventna kateter ablacija / Intraatrial conduction time / Radiofrequent catether ablation
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Handle
https://hdl.handle.net/21.15107/rcub_nardus_10330
URI
https://nardus.mpn.gov.rs/handle/123456789/10330
http://eteze.bg.ac.rs/application/showtheses?thesesId=6319
https://fedorabg.bg.ac.rs/fedora/get/o:18985/bdef:Content/download
http://vbs.rs/scripts/cobiss?command=DISPLAY&base=70036&RID=50776079

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