{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,23]],"date-time":"2026-10-23T22:32:19Z","timestamp":1792794739920,"version":"4.5.0"},"reference-count":33,"publisher":"Wiley","issue":"2","license":[{"start":{"date-parts":[[2020,1,20]],"date-time":"2020-01-20T00:00:00Z","timestamp":1579478400000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by-nc-nd\/4.0\/"}],"content-domain":{"domain":["onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Cardiovasc electrophysiol"],"published-print":{"date-parts":[[2020,2]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:sec><jats:title>Aim<\/jats:title><jats:p>The aim of this study is to assess if left bundle branch pacing (LBBP) can preserve physiological cardiac synchrony and deliver favorable hemodynamic effects.<\/jats:p><\/jats:sec><jats:sec><jats:title>Methods<\/jats:title><jats:p>Consecutive patients undergoing dual chamber pacemaker implantation for sick sinus syndrome (SSS) and a normal cardiac function with a narrow QRS complex were recruited for the study. Electrocardiogram and echocardiographic examinations were performed during ventricular pacing\u2010on and native\u2010conduction modes. The QRS duration (QRSd), systolic dyssynchrony index (SDI), and the standard deviation of time\u2010to\u2010peak contraction velocity in left ventricular (LV) 12 segments (Tsd\u201012\u2010LV) were measured to evaluate LV synchrony. The stroke volume (SV) and the degree of atrioventricular valvular regurgitation were also assessed.<\/jats:p><\/jats:sec><jats:sec><jats:title>Results<\/jats:title><jats:p>A total of 40 patients underwent LBBP, while another 38 patients underwent right ventricular septum pacing (RVSP) as control group. Baseline characteristics were similar between the two groups. With LBBP, the paced QRSd was slightly wider than the intrinsic QRSd (101.03\u2009\u00b1\u20098.79\u2009ms vs 91.06\u2009\u00b1\u200914.17\u2009ms, <jats:italic>P<\/jats:italic>\u2009&lt;\u2009.0001) while the LV mechanical synchrony during LBBP pacing mode was similar to that of native\u2010conduction mode (SDI, 3.14\u2009\u00b1\u20092.49 vs 2.70\u2009\u00b1\u20091.68, <jats:italic>P<\/jats:italic>\u2009=\u20090.129; Tsd\u201012\u2010LV, 26.43\u2009\u00b1\u200915.55 vs 25.61\u2009\u00b1\u200916.07, <jats:italic>P<\/jats:italic>\u2009=\u2009.671) in the LBBP group. The LV synchrony in the LBBP group was superior to the RVSP group significantly. No significant differences in SV (64.08\u2009\u00b1\u200916.97\u2009mL vs 65.45\u2009\u00b1\u200918.68\u2009mL, <jats:italic>P<\/jats:italic>\u2009=\u2009.241) or the degree of atrioventricular valvular regurgitation were noted between LBBP capture and native\u2010conduction modes.<\/jats:p><\/jats:sec><jats:sec><jats:title>Conclusion<\/jats:title><jats:p>LBBP could preserve satisfactory LV synchrony and result in favorable hemodynamic effects.<\/jats:p><\/jats:sec>","DOI":"10.1111\/jce.14342","type":"journal-article","created":{"date-parts":[[2020,1,10]],"date-time":"2020-01-10T05:11:21Z","timestamp":1578633081000},"page":"560-569","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":81,"title":["Evaluation of cardiac synchrony in left bundle branch pacing: Insights from echocardiographic research"],"prefix":"10.1111","volume":"31","author":[{"given":"Binni","family":"Cai","sequence":"first","affiliation":[{"name":"Department of Cardiology, Xiamen Cardiovascular Hospital Xiamen University Xiamen Fujian China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Xinyi","family":"Huang","sequence":"additional","affiliation":[{"name":"Department of Echocardiography, Xiamen Cardiovascular Hospital Xiamen University Xiamen Fujian China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Linlin","family":"Li","sequence":"additional","affiliation":[{"name":"Department of Cardiology, Xiamen Cardiovascular Hospital Xiamen University Xiamen Fujian China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Jincun","family":"Guo","sequence":"additional","affiliation":[{"name":"Department of Cardiology, Xiamen Cardiovascular Hospital Xiamen University Xiamen Fujian China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Simei","family":"Chen","sequence":"additional","affiliation":[{"name":"Department of Cardiac Function, Xiamen Cardiovascular Hospital Xiamen University 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