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Ann Thorac Surg 2006;81:2338-2339
© 2006 The Society of Thoracic Surgeons

Correspondence

MagScrew Total Artificial Heart

Soren Schenk, MD, Stephan Weber, Dipl Ing, William A. Smith, DEng, PE, Kiyotaka Fukamachi, MD, PhD

Department of Biomedical Engineering/ND20, The Cleveland Clinic Foundation, 9500 Euclid Ave, Cleveland, OH 44195

(Email: fukamak@ccf.org).

The first 20% of the full text of this article appears below.

To the Editor:

We appreciated seeing our article in The Annals of Thoracic Surgery [1], and we read Dr Holman's [2] invited commentary with interest. In response, we would like to provide some additional information addressing the points he raised, which were not issues addressed by our original article.

The maximum pressure in the original version of the HeartMate® (Thoratec Corp, Pleasanton, CA) left ventricular assist system has been reported to be 400 mm Hg [3]. Thoratec has since made improvements in the HeartMate's ejection dynamics [4, 5]. Measurements on the MagScrew total artificial heart (TAH) show maximum pressure values in the range of 120 to 140 mm Hg. These values are within the acceptable range defined for . . . [Full Text of this Article]






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