Cardiac Pacing pp 205-211 | Cite as

Mitral Valve Function and Cardiac Dimensions During Ventricular (VVI) and Sequential Atrio-Ventricular (DVI) Pacing. Echocardiographic Study

  • G. Gershony
  • B. Goldman
  • E. Noble
  • C. Pollick
Conference paper


We studied 16 patients with implanted multiprogrammable DVI pacemakers, utilizing M-mode and two dimensional (2D) echocardiography, during DVI and VVI pacing.

Left ventricular dimensions in both systole and diastole were significantly larger during DVI pacing compared to VVI (p < 0.001). Conversely left atrial (LA) dimensions were significantly smaller during DVI pacing compared to VVI (p < 0.001). The duration of “effective” mitral valve opening (MVO) was significantly longer during DVI pacing (p < 0.001). All patients demonstrated septal dyssynergy during right ventricular pacing, regardless of the mode. Atrial competition was a frequent finding during DVI pacing and this correlated with an ineffective atrial kick demonstrated echocardiographically.


Catheter Europe Cardiol 


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Copyright information

© Dr. Dietrich Steinkopff Verlag, GmbH & Co. KG, Darmstadt 1983

Authors and Affiliations

  • G. Gershony
    • 1
  • B. Goldman
  • E. Noble
  • C. Pollick
  1. 1.Department of MedicineToronto Western HospitalTorontoCanada

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