Technical Briefs

Conus Arteriosus as an Alternate Pacing Site

[+] Author and Article Information
Ashish Singal

Department of Biomedical Engineering,
University of Minnesota;
Department of Surgery,
University of Minnesota

Noora Hussain

Department of Surgery,
University of Minnesota

Anthony J. Weinhaus

Integrative Biology & Physiology,
University of Minnesota

Paul A. Iaizzo

Department of Biomedical Engineering,
University of Minnesota;
Department of Integrative Biology & Physiology,
University of Minnesota;
Department of Surgery,
University of Minnesota;
Department of Institute of Engineering in Medicine,
University of Minnesota

Manuscript received March 15, 2013; final manuscript received April 26, 2013; published online July 3, 2013. Assoc. Editor: Arthur G. Erdman.

J. Med. Devices 7(3), 030902 (Jul 03, 2013) (2 pages) Paper No: MED-13-1033; doi: 10.1115/1.4024493 History: Received March 15, 2013; Revised April 26, 2013

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Grahic Jump Location
Fig. 1

[8] Illustration of different pacing sites in the RV. A: RV apical pacing site; B: RVOT low septal pacing site; C: RVOT high septal pacing site; D: Direct His Bundle pacing site on the membranous septum in the atrial aspect of tricuspid valve annulus. In this investigation, visual examination of presence of trabeculations in the septal and free wall region of RVOT was performed.

Grahic Jump Location
Fig. 2

A top-down view of the pulmonary artery looking down into the RVOT through the pulmonary valve. The Anterior (Ant), Medial (Med), Posterior (Pos) and Lateral (Lat) walls of conus arteriosus are shown. In this specimen, trabeculations can be seen in the anterior and medial walls, and smoothness can be seen in the posterior and lateral walls. Also shown are the cusps of the pulmonary valve.

Grahic Jump Location
Fig. 3

Longitudinal section of RVOT (conus arteriosus) reflected after incision in the anterior wall, showing smooth morphology of all 4 walls of the conus. Also shown are the cusps of the pulmonary valve.

Grahic Jump Location
Fig. 4

Percent trabeculation and smoothness observed in all four walls of conus arteriosus in 139 formalin-fixed adult human cadaver hearts



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