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Early results with the Carbo-seal composite valve conduit for aortic root replacement: Comparison with the St. Jude Medical/Hemashield composite graft

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Abstract

The Carbo-seal (C-S) composite valve conduit incorporates the CarboMedics mechanical prosthetic aortic valve in a gelatin-impregnated, twill-woven Gelweave tube graft. We evaluated the early results of the C-S composite graft in patients undergoing elective aortic root replacement. Five aortic root replacements with the C-S were compared with nine similar surgeries with St. Jude Medical/Hemashield (S-H) composite grafts, which were assembled during surgery. Both the Gelweave and the Hemashield graft fabrics are relatively thin and soft, allowing improved needle passage and surgical manipulation. No device-related complication was observed in the C-S group, although one low-output syndrome due to poor cardiac protection was found. In the S-H group, a non-infectious fever and a pleural effusion were observed. Body temperatures in both groups recovered to less than 37°C within 3 days after operation. The two groups demonstrated similar time courses in CRP, white blood cell count, red blood cell count, and LDH and no statistically significant intergroup differences. In terms of valve function (peak velocity and pressure gradient were determined by Doppler echo cardiography), both types of valves have remained within normal range through the last routine examination. Graft dilation also remained within an acceptable range at 6 months after operation, with no significant intergroup differences. In conclusion, the initial results indicated that the C-S composite valve conduit is a reliable device for use in aortic root replacement and may be considered comparable to the S-H. A longer follow-up in a larger patient population is necessary to confirm this positive early result.

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Authors and Affiliations

  1. Department of Surgery, Kurume University School of Medicine, 67 Asahi-machi, 830-0011, Kurume, Japan

    Eiki Tayama MD, PhD, Hidetoshi Akashi MD, PhD, Kenji Ishihara MD, Nobuhiko Hayashida MD, PhD, Koji Akasu MD, Tomokazu Kosuga MD, Shuji Fukunaga MD, PhD, Takemi Kawara MD, PhD & Shigeaki Aoyagi MD, PhD

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  1. Eiki Tayama MD, PhD
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  2. Hidetoshi Akashi MD, PhD
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  3. Kenji Ishihara MD
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  4. Nobuhiko Hayashida MD, PhD
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  5. Koji Akasu MD
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  6. Tomokazu Kosuga MD
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  7. Shuji Fukunaga MD, PhD
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  8. Takemi Kawara MD, PhD
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  9. Shigeaki Aoyagi MD, PhD
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Correspondence to Eiki Tayama MD, PhD.

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Tayama, E., Akashi, H., Ishihara, K. et al. Early results with the Carbo-seal composite valve conduit for aortic root replacement: Comparison with the St. Jude Medical/Hemashield composite graft. J Artif Organs 3, 120–125 (2000). https://doi.org/10.1007/BF02479978

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  • DOI: https://doi.org/10.1007/BF02479978

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