Utoh J, Goto H, Hirata T, Hara M, Kitamura N
First Department of Surgery, Kumamoto University School of Medicine, Kumamoto City, Japan.
J Cardiovasc Surg (Torino). 1998 Apr;39(2):179-80.
Early postoperative dilation of a gelatin-impregnated knitted dacron prosthesis (Gelseal, Vascutek) and a collagen-impregnated woven Dacron prosthesis (Hemashield, Meadox Medicals) was studied.
Prospective study.
Institutional clinical research.
A total of 30 patients who underwent aortic repair for abdominal aortic aneurysm with a Gelseal (n=15) or Hemashield (n=15) were studied. Prior to and immediately following implantation, the diameter of each graft was measured with slide calipers. The external diameter was examined by CT scan 4 weeks after surgery. Early dilation of Gelseal and Hemashield was estimated and compared.
Prior to implantation, the external diameter of the Gelseal and Hemashield was 120% and 113% of the package size (PS), respectively, while the internal diameter was 103% and 102% of the PS, respectively. Following implantation, the external diameter of the Gelseal and Hemashield was 122% and 113% (immediately after) and 129% and 118% (4 weeks later) of the PS, respectively.
The actual dilation rate for the first 4 weeks after implantation was estimated as 8% with the Gelseal and 4% with the Hemashield.
研究明胶浸渍针织涤纶人工血管（Gelseal，Vascutek公司）和胶原浸渍编织涤纶人工血管（Hemashield，Meadox Medicals公司）术后早期的扩张情况。
前瞻性研究。
机构临床研究。
共研究了30例接受腹主动脉瘤主动脉修复术的患者，其中15例使用Gelseal人工血管，15例使用Hemashield人工血管。在植入前及植入后立即用游标卡尺测量每个移植物的直径。术后4周通过CT扫描检查外径。对Gelseal和Hemashield的早期扩张情况进行评估和比较。
植入前，Gelseal和Hemashield的外径分别为包装尺寸（PS）的120%和113%，内径分别为PS的103%和102%。植入后，Gelseal和Hemashield的外径在植入后立即分别为PS的122%和113%，4周后分别为129%和118%。
植入后前4周，Gelseal的实际扩张率估计为8%，Hemashield为4%。
