Extracorporeal Circulation without External Clamping and Cannulation of the Aorta: Transventricular Placement of a New Multifunctional Aortic Cannula

Authors

  • Albertus M. Scheule
  • Wolfram Beierlein
  • Andreas Straub
  • Gerhard Ziemer

DOI:

https://doi.org/10.1532/HSF98.20041105

Abstract

Background: Stroke is a devastating outcome of coronary artery bypass grafting (CABG). An atherosclerotic ascending aorta is a major risk factor for plaque detachment during cannulation and external clamping in patients undergoing CABG while on extracorporeal circulation (ECC). To avoid external cannulation and clamping we developed and tested a new multifunctional cannula in a pig model.

Methods: The cannula has a double-balloon endoclamping function and is placed via the apex of the left ventricle through the aortic valve in the ascending aorta. It has 2 integrated lines for cardioplegic solution and for venting the left ventricle. In this animal model, a single balloon cannula was used because of the short ascending aorta in pigs.

Results: The cannula was placed smoothly and reproducibly with a guide-wire technique. The cardioplegic solution was administered via aortic root perfusion. Weaning from ECC was uneventful, and macroscopic examination did not reveal any damage to the aortic valve.

Conclusions: This cannula could be used in patients with a severe atherosclerotic ascending aorta. The risk of plaque detachment and stroke during ECC might be reduced.

References

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Published

2005-01-04

How to Cite

Scheule, A. M., Beierlein, W., Straub, A., & Ziemer, G. (2005). Extracorporeal Circulation without External Clamping and Cannulation of the Aorta: Transventricular Placement of a New Multifunctional Aortic Cannula. The Heart Surgery Forum, 7(6), E569-E570. https://doi.org/10.1532/HSF98.20041105

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Section

Articles