Left Atrial Function after Atrial Fibrillation Cryoablation Concomitant to Minimally Invasive Mitral Valve Repair: A Pilot Study on Long-Term Results and Clinical Implications
<i>Background and Objectives:</i> Surgical atrial fibrillation (AF) ablation concomitant to minimally invasive mitral valve repair has been proven to offer improved short- and long-term sinus rhythm (SR) maintenance compared to mitral valve surgery only. The objective of the present stud...
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MDPI AG
2019-10-01
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| Series: | Medicina |
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| Online Access: | https://www.mdpi.com/1010-660X/55/10/709 |
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| author | Matteo Anselmino Chiara Rovera Giovanni Marchetto Davide Castagno Mara Morello Simone Frea Fiorenzo Gaita Mauro Rinaldi Gaetano Maria De Ferrari |
| author_facet | Matteo Anselmino Chiara Rovera Giovanni Marchetto Davide Castagno Mara Morello Simone Frea Fiorenzo Gaita Mauro Rinaldi Gaetano Maria De Ferrari |
| author_sort | Matteo Anselmino |
| collection | DOAJ |
| description | <i>Background and Objectives:</i> Surgical atrial fibrillation (AF) ablation concomitant to minimally invasive mitral valve repair has been proven to offer improved short- and long-term sinus rhythm (SR) maintenance compared to mitral valve surgery only. The objective of the present study was to explore, by thorough echocardiographic assessment, long-term morphological and functional left atrial (LA) outcomes after this combined surgical procedure. <i>Materials and Methods</i>: From October 2006 to November 2015, 48 patients underwent minimally invasive mitral valve repair and concomitant surgical AF cryoablation. <i>Results:</i> After 3.8 ± 2.2 years, 30 (71.4%) of those completing the follow-up (<i>n</i> = 42, 87.5%) presented SR. During follow-up, four (9.5%) patients suffered from cerebrovascular accidents and two of these subjects had a long-standing persistent AF relapse and were in AF at the time of the event, while the other two were in SR. An echocardiographic study focused on LA characteristics was performed in 29 patients (69.0%). Atrial morphology and function (e.g., maximal LA volume indexed to body surface area and total LA emptying fraction derived from volumes) in patients with stable SR (60.6 ± 13.1 mL/mq and 25.1 ± 7.3%) were significantly better than in those with AF relapses (76.8 ± 16.2 mL/mq and 17.5 ± 7.4%; respectively, <i>p</i> = 0.008 and <i>p</i> = 0.015). At follow-up, patients who suffered from ischemic cerebral events had maximal LA volume indexed to body surface area 61 ± 17.8 mL/mq, with total LA emptying fraction derived from volumes 23.6 ± 13.7%; patients with strokes in SR showed very enlarged LA volume (>70 mL/mq). <i>Conclusions</i>: AF cryoablation concomitant with minimally invasive mitral valve repair provides a high rate of SR maintenance and this relates to improved long-term morphological and functional LA outcomes. Further prospective studies are needed to define the cut-off values determining an increase in the risk for thromboembolic complications in patients with restored stable SR. |
| first_indexed | 2024-03-12T09:50:10Z |
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| institution | Directory Open Access Journal |
| issn | 1010-660X |
| language | English |
| last_indexed | 2024-03-12T09:50:10Z |
| publishDate | 2019-10-01 |
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| spelling | doaj.art-8bb6ddd762804c11959e9a645abd4fec2023-09-02T12:34:06ZengMDPI AGMedicina1010-660X2019-10-01551070910.3390/medicina55100709medicina55100709Left Atrial Function after Atrial Fibrillation Cryoablation Concomitant to Minimally Invasive Mitral Valve Repair: A Pilot Study on Long-Term Results and Clinical ImplicationsMatteo Anselmino0Chiara Rovera1Giovanni Marchetto2Davide Castagno3Mara Morello4Simone Frea5Fiorenzo Gaita6Mauro Rinaldi7Gaetano Maria De Ferrari8Division of Cardiology, “Città della Salute e della Scienza di Torino” Hospital, Department of Medical Sciences, University of Turin, 10124 Torino, ItalyCardiology Unit, “Ospedale Civico”, Chivasso, 10034 Torino, ItalyDivision of Cardiac Surgery, “Città della Salute e della Scienza di Torino” Hospital, University of Turin, 10124 Torino, ItalyDivision of Cardiology, “Città della Salute e della Scienza di Torino” Hospital, Department of Medical Sciences, University of Turin, 10124 Torino, ItalyDivision of Cardiology, “Città della Salute e della Scienza di Torino” Hospital, Department of Medical Sciences, University of Turin, 10124 Torino, ItalyDivision of Cardiology, “Città della Salute e della Scienza di Torino” Hospital, Department of Medical Sciences, University of Turin, 10124 Torino, ItalyCardiology Department, Clinica Pinna Pintor, 10129 Torino, ItalyDivision of Cardiac Surgery, “Città della Salute e della Scienza di Torino” Hospital, University of Turin, 10124 Torino, ItalyDivision of Cardiology, “Città della Salute e della Scienza di Torino” Hospital, Department of Medical Sciences, University of Turin, 10124 Torino, Italy<i>Background and Objectives:</i> Surgical atrial fibrillation (AF) ablation concomitant to minimally invasive mitral valve repair has been proven to offer improved short- and long-term sinus rhythm (SR) maintenance compared to mitral valve surgery only. The objective of the present study was to explore, by thorough echocardiographic assessment, long-term morphological and functional left atrial (LA) outcomes after this combined surgical procedure. <i>Materials and Methods</i>: From October 2006 to November 2015, 48 patients underwent minimally invasive mitral valve repair and concomitant surgical AF cryoablation. <i>Results:</i> After 3.8 ± 2.2 years, 30 (71.4%) of those completing the follow-up (<i>n</i> = 42, 87.5%) presented SR. During follow-up, four (9.5%) patients suffered from cerebrovascular accidents and two of these subjects had a long-standing persistent AF relapse and were in AF at the time of the event, while the other two were in SR. An echocardiographic study focused on LA characteristics was performed in 29 patients (69.0%). Atrial morphology and function (e.g., maximal LA volume indexed to body surface area and total LA emptying fraction derived from volumes) in patients with stable SR (60.6 ± 13.1 mL/mq and 25.1 ± 7.3%) were significantly better than in those with AF relapses (76.8 ± 16.2 mL/mq and 17.5 ± 7.4%; respectively, <i>p</i> = 0.008 and <i>p</i> = 0.015). At follow-up, patients who suffered from ischemic cerebral events had maximal LA volume indexed to body surface area 61 ± 17.8 mL/mq, with total LA emptying fraction derived from volumes 23.6 ± 13.7%; patients with strokes in SR showed very enlarged LA volume (>70 mL/mq). <i>Conclusions</i>: AF cryoablation concomitant with minimally invasive mitral valve repair provides a high rate of SR maintenance and this relates to improved long-term morphological and functional LA outcomes. Further prospective studies are needed to define the cut-off values determining an increase in the risk for thromboembolic complications in patients with restored stable SR.https://www.mdpi.com/1010-660X/55/10/709atrial fibrillationsurgical cryoablationleft atrial functionminimally invasive mitral valve repairechocardiographyischemic cerebral events |
| spellingShingle | Matteo Anselmino Chiara Rovera Giovanni Marchetto Davide Castagno Mara Morello Simone Frea Fiorenzo Gaita Mauro Rinaldi Gaetano Maria De Ferrari Left Atrial Function after Atrial Fibrillation Cryoablation Concomitant to Minimally Invasive Mitral Valve Repair: A Pilot Study on Long-Term Results and Clinical Implications Medicina atrial fibrillation surgical cryoablation left atrial function minimally invasive mitral valve repair echocardiography ischemic cerebral events |
| title | Left Atrial Function after Atrial Fibrillation Cryoablation Concomitant to Minimally Invasive Mitral Valve Repair: A Pilot Study on Long-Term Results and Clinical Implications |
| title_full | Left Atrial Function after Atrial Fibrillation Cryoablation Concomitant to Minimally Invasive Mitral Valve Repair: A Pilot Study on Long-Term Results and Clinical Implications |
| title_fullStr | Left Atrial Function after Atrial Fibrillation Cryoablation Concomitant to Minimally Invasive Mitral Valve Repair: A Pilot Study on Long-Term Results and Clinical Implications |
| title_full_unstemmed | Left Atrial Function after Atrial Fibrillation Cryoablation Concomitant to Minimally Invasive Mitral Valve Repair: A Pilot Study on Long-Term Results and Clinical Implications |
| title_short | Left Atrial Function after Atrial Fibrillation Cryoablation Concomitant to Minimally Invasive Mitral Valve Repair: A Pilot Study on Long-Term Results and Clinical Implications |
| title_sort | left atrial function after atrial fibrillation cryoablation concomitant to minimally invasive mitral valve repair a pilot study on long term results and clinical implications |
| topic | atrial fibrillation surgical cryoablation left atrial function minimally invasive mitral valve repair echocardiography ischemic cerebral events |
| url | https://www.mdpi.com/1010-660X/55/10/709 |
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