{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,3,9]],"date-time":"2026-03-09T23:35:19Z","timestamp":1773099319254,"version":"3.50.1"},"reference-count":26,"publisher":"Wiley","issue":"12","license":[{"start":{"date-parts":[[2005,12,8]],"date-time":"2005-12-08T00:00:00Z","timestamp":1134000000000},"content-version":"vor","delay-in-days":7,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Cardiovasc electrophysiol"],"published-print":{"date-parts":[[2005,12]]},"abstract":"<jats:p>\n                    <jats:italic>Introduction:<\/jats:italic>\n                    Spontaneous or pacing\u2010induced interatrial conduction delay may affect the outcome of heart failure patients treated with cardiac resynchronization therapy (CRT). The objective of this study was to evaluate the impact of the atrial pacing site (right atrial appendage, RAA; and low interatrial septum, LIS) during biventricular (BV) pacing on the left ventricular (LV) systolic function in candidates for CRT.\n                  <\/jats:p>\n                  <jats:p>\n                    <jats:italic>Methods and Results:<\/jats:italic>\n                    Fifteen heart failure patients with left bundle branch block and LV ejection fraction \u226435% were enrolled. Electrodes were placed at the RAA, LIS, right ventricular apex, and LV free wall. A DDD protocol was tested, which consisted of 50 beats in AAI mode from the RAA followed by 50 beats in BV DDD mode with atrial pacing at the RAA (DDD_RAA) or at the LIS (DDD_LIS) at four AV delays. The average (\u00b1SD)%LV+dP\/dt\n                    <jats:sub>max<\/jats:sub>\n                    increase during DDD_RAA and DDD_LIS pacing with respect to baseline was 24 \u00b1 16% and 21 \u00b1 15%, respectively (P &lt; 0.01), and average percentage change in aortic pulse pressure during DDD_RAA and DDD_LIS with respect to baseline (%PP) was 13 \u00b1 8% and 13 \u00b1 7% (ns).\n                  <\/jats:p>\n                  <jats:p>\n                    <jats:italic>Conclusions:<\/jats:italic>\n                    Our results show a significant hemodynamic improvement with both DDD_RAA and DDD_LIS biventricular pacing compared to AAI pacing. However DDD_LIS pacing was not superior to DDD_RAA pacing in acute hemodynamic responses.\n                  <\/jats:p>","DOI":"10.1111\/j.1540-8167.2005.00246.x","type":"journal-article","created":{"date-parts":[[2010,8,16]],"date-time":"2010-08-16T05:21:23Z","timestamp":1281936083000},"page":"1273-1278","source":"Crossref","is-referenced-by-count":19,"title":["Hemodynamic Effects of Atrial Septal Pacing in Cardiac Resynchronization Therapy Patients"],"prefix":"10.1111","volume":"16","author":[{"given":"FRANCESCO","family":"DI PEDE","sequence":"first","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"GIANNI","family":"GASPARINI","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"BRUNO","family":"DE 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