Unusual complication of the Hancock porcine heterograft: Strut compression in the aortic root

N. W. Salomon, J. G. Copeland, S. Goldman, D. F. Larson

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A 65-year old man underwent aortic valve replacement and triple coronary artery bypass grafting which were followed by gradual late postoperative thrombosis of his 25 mm. Hancock porcine aortic heterograft. At reoperation, the valve struts were noted to be angled centrally into the aortic lumen and dense thrombus completely filled all three sinuses. After valve removal and extensive debridement of the aortic anulus, including relaxing incisions, a diameter of only 23 mm. was obtained. A 23 mm. Bjork-Shiley aortic prosthesis was inserted and the patient's recovery was uneventful. This previously unreported complication resulted from the insertion of an excessively large Hancock porcine heterograft into a relatively small aortic root, resulting in circumferential strut compression, impedance of central flow, and subsequent valve thrombosis.

Original languageEnglish (US)
Pages (from-to)294-296
Number of pages3
JournalJournal of Thoracic and Cardiovascular Surgery
Issue number2
StatePublished - Jan 1 1979


ASJC Scopus subject areas

  • Surgery
  • Pulmonary and Respiratory Medicine
  • Cardiology and Cardiovascular Medicine

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