1996
DOI: 10.1111/j.1540-8159.1996.tb03186.x
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The Importance of Different Atrioventricular Delay for Left Ventricular Filling in Sequential Pacing: Clinical Implications

Abstract: We assessed the influence and clinical consequences of different AV delay on ventricular filling in 30 patients (mean age 60 +/- 5 years) who had DDD pacemakers for AV block. All 30 patients presented a normal ejection fraction, but in 18 cases (Group I), an echo-Doppler examination revealed ventricular hypertrophy (mean end-diastolic wall thickness of 1.4 +/- 0.16 cm, LV mass index 155 +/- 17 g/m2), and an abnormal relaxation pattern (isovolumetric relaxation time = 124.72 +/- 11.82; early to late peak veloci… Show more

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Cited by 13 publications
(9 citation statements)
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“…Though a controversial issue, the effects of various atrioventricular sequential pacing on cardiac hemodynamics are supported by some reports showing that a reduction in atrioventricular delay can be used in the treatment of dilated cardiomyopathy in advanced functional class [9, 19, 20]. In our study, atrioventricular delay value is not important since there was no statistical difference between the different atrioventricular delay adjustments at rest during atrioventricular sequential pacing.…”
Section: Discussionsupporting
confidence: 61%
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“…Though a controversial issue, the effects of various atrioventricular sequential pacing on cardiac hemodynamics are supported by some reports showing that a reduction in atrioventricular delay can be used in the treatment of dilated cardiomyopathy in advanced functional class [9, 19, 20]. In our study, atrioventricular delay value is not important since there was no statistical difference between the different atrioventricular delay adjustments at rest during atrioventricular sequential pacing.…”
Section: Discussionsupporting
confidence: 61%
“…Small changes in the programmed atrioventricular delay have a significant effect on cardiac function at rest. Also, the studies have indicated that optimization of cardiac hemodynamics, particularly in terms of cardiac index and workload, can only be obtained at optimal atrioventricular delay setting [6,7,8,9,10]. …”
Section: Introductionmentioning
confidence: 99%
“…However, there was no significant effect of AV duration on LA and LAA function in patient with normal left ventricular systolic and diastolic functions. [5][6][7][8][9] However, the effect of setting the AVD on LA and LAA functions in patients with DDD pacemaker has not been sufficiently evaluated previously. 8,16 The optimal AVD allows completion of end-diastolic filling prior to ventricular contraction.…”
Section: Discussionmentioning
confidence: 99%
“…9,16 Patients with systolic or diastolic dysfunction obtain more benefit from AVD optimization than patients with normal ventricular functions. These findings may be due to less important contribution of atrial contraction in patients with normal diastolic function.…”
Section: Discussionmentioning
confidence: 99%
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