Vermeulen F, Schepens M, de Valois J, Wijers L, Kelder J
Department of Cardiothoracic Surgery, St Antonius Hospital, Nieuwegein, The Netherlands.
Cardiovasc Surg. 2001 Dec;9(6):580-5. doi: 10.1016/s0967-2109(01)00030-8.
Dacron prostheses in humans have been documented to present long-term fiber alterations, that may account for late graft dilatation. Late dilatation has been documented mainly in knitted prostheses, implanted in the abdominal and thoracic aorta. Dilatation of the collagen-impregnated Hemashield Woven prosthesis has not been studied prospectively in the thoracic aorta.
Twenty patients were prospectively included. The intraoperative performance of the graft and mid-term clinical behaviour were studied. The graft distensibility was evaluated by postoperative, 1 and 3 yr computed tomographic diameter follow-up.
There were no hospital deaths. Two graft-unrelated deaths occurred at 3 yr. The graft performance was excellent or good for most aspects. No significant changes in CT diameter occurred throughout the 3 yr follow-up.
The collagen-impregnated Hemashield Woven prosthesis is considered safe in replacements of the thoracic aorta. Future evaluation should focus on the very long-term behaviour in young adults.
已有文献记载，人体中的涤纶人工血管存在长期的纤维改变，这可能是晚期移植物扩张的原因。晚期扩张主要见于植入腹主动脉和胸主动脉的针织人工血管。胶原浸渍的Hemashield编织人工血管在胸主动脉中的扩张情况尚未进行前瞻性研究。
前瞻性纳入20例患者。研究了移植物的术中表现和中期临床行为。通过术后1年和3年的计算机断层扫描直径随访评估移植物的扩张性。
无医院死亡病例。3年时有2例与移植物无关的死亡。移植物在大多数方面表现优良。在整个3年随访期间，CT直径无显著变化。
胶原浸渍的Hemashield编织人工血管在胸主动脉置换中被认为是安全的。未来的评估应关注年轻成年人的长期行为。
