{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,10,12]],"date-time":"2025-10-12T04:43:33Z","timestamp":1760244213381,"version":"build-2065373602"},"reference-count":26,"publisher":"MDPI AG","issue":"9","license":[{"start":{"date-parts":[[2022,9,15]],"date-time":"2022-09-15T00:00:00Z","timestamp":1663200000000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Medicina"],"abstract":"<jats:p>Background and Objectives: Chronic atrial stimulation might impair left atrial (LA) function. We aimed to assess the impact of atrial pacing burden on LA volumetric and functional parameters after implantation of a dual-chamber pacemaker. Materials and Methods: The prospective study included 121 subjects with sinus node disease (SND) or atrioventricular block (AVB) that received a dual-chamber pacemaker. After device implantation, the subjects were divided into three groups: (1) SND with a lower rate (LR) set to 60 bpm and rate response enabled; (2) AVB with an LR set to 60 bpm and no rate response; and (3) AVB with an LR set to 40 bpm and no rate response. Subjects were followed at one and three months. Two subsets of patients with high and low atrial pacing burdens accompanied by low ventricular pacing percentage were analyzed. LA function was evaluated with volumetric and strain parameters from transthoracic echocardiography. Results: The high atrial low ventricular pacing group consisted of 38 subjects, and the low atrial low ventricular group consisted of 22 subjects. When looking at the change in volumetric parameters, we observed a tendency for volumes to increase in both groups; however, only minimal LA volume reached statistical significance at three months in the high atrial pacing group. A trend towards the lowering of an active emptying fraction at one month (p = 0.076) became significant at three months (p = 0.043), and was also only observed in the same group. Moreover, a decrease in the tendency to reach statistical significance at three months for reservoir and contractile strain parameters and stiffness index was only observed in the high atrial pacing group. Meanwhile, in the low atrial pacing burden group, all parameters remained significantly unchanged. Conclusions: The burden of right atrial pacing in patients with preserved left ventricular function negatively influences functional and morphologic LA parameters. Moreover, negative effects take place soon after pacemaker implantation and appear to be sustained.<\/jats:p>","DOI":"10.3390\/medicina58091283","type":"journal-article","created":{"date-parts":[[2022,9,16]],"date-time":"2022-09-16T01:35:10Z","timestamp":1663292110000},"page":"1283","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":0,"title":["Atrial Pacing Affects Left Atrial Morphological and Functional Parameters Early after Pacemaker Implantation"],"prefix":"10.3390","volume":"58","author":[{"given":"Mindaugas","family":"Viezelis","sequence":"first","affiliation":[{"name":"Department of Cardiology, Lithuanian University of Health Sciences, A. Mickeviciaus Str. 7, LT-44307 Kaunas, Lithuania"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Gintare","family":"Neverauskaite-Piliponiene","sequence":"additional","affiliation":[{"name":"Department of Cardiology, Lithuanian University of Health Sciences, A. Mickeviciaus Str. 7, LT-44307 Kaunas, Lithuania"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Agne","family":"Marcinkeviciene","sequence":"additional","affiliation":[{"name":"Department of Cardiology, Lithuanian University of Health Sciences, A. Mickeviciaus Str. 7, LT-44307 Kaunas, Lithuania"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Eligija","family":"Teleisyte","sequence":"additional","affiliation":[{"name":"Department of Cardiology, Lithuanian University of Health Sciences, A. Mickeviciaus Str. 7, LT-44307 Kaunas, Lithuania"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Tomas","family":"Kazakevicius","sequence":"additional","affiliation":[{"name":"Department of Cardiology, Lithuanian University of Health Sciences, A. Mickeviciaus Str. 7, LT-44307 Kaunas, Lithuania"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Vytautas","family":"Zabiela","sequence":"additional","affiliation":[{"name":"Department of Cardiology, Lithuanian University of Health Sciences, A. Mickeviciaus Str. 7, LT-44307 Kaunas, Lithuania"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Vilius","family":"Kviesulaitis","sequence":"additional","affiliation":[{"name":"Department of Cardiology, Hospital of Lithuanian University of Health Sciences Kaunas Clinics, Eiveniu Str. 2, LT-50161 Kaunas, Lithuania"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Renaldas","family":"Jurkevicius","sequence":"additional","affiliation":[{"name":"Department of Cardiology, Lithuanian University of Health Sciences, A. Mickeviciaus Str. 7, LT-44307 Kaunas, Lithuania"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Aras","family":"Puodziukynas","sequence":"additional","affiliation":[{"name":"Department of Cardiology, Lithuanian University of Health Sciences, A. Mickeviciaus Str. 7, LT-44307 Kaunas, Lithuania"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"1968","published-online":{"date-parts":[[2022,9,15]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"3427","DOI":"10.1093\/eurheartj\/ehab364","article-title":"2021 ESC Guidelines on cardiac pacing and cardiac resynchronization therapy","volume":"42","author":"Glikson","year":"2021","journal-title":"Eur. 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