• Einar Dregelid, Maria Paula Ramnefjell, Christian Erichsen, Bjørn Jostein Christensen, and Ravi Rawal.
• Department of Surgery, Vascular Section, Haukeland University Hospital, Bergen, Norway. Einar.dregelid@haukeland.no.
• Eur J Trauma Emerg S. 2008 Apr 1;34(2):177-80.

AbstractFibrinogen- and thrombin-coated collagen fleece (FTCC) facilitates surgical hemostasis, and is of particular value during resection of parenchymatous organs. Since thrombosis may ensue if the preparation is unintentionally applied intravascularly, it has not been recommended for treating lacerations of large veins, and no previous reports describe its use in vein repair. Our observations in two patients suggest, however, that FTCC might be indicated for hemostasis in vein injury where vascular suture is difficult or not possible, provided a low- or non-thrombogenic patch is interposed to prevent FTCC-induced vein thrombosis. Our two patients had severe lacerations of the proximal superior mesenteric vein (SMV) not amenable to conventional vein repair. Rapid hemostasis was obtained without suturing using Tachosil(®), an FTCC preparation, covered with omentum. In the first patient hemostasis was obtained at the expense of vein thrombosis, apparently due to contact between the coagulant-containing side of Tachosil(®) and the inside of the vein wall. In our second patient we therefore put a small patch of parietal peritoneum on the section of the Tachosil(®) targeted to cover the vein tear to avoid direct contact between Tachosil(®) and the vein lumen. Ultrasound examination 3 days postoperatively, and autopsy 11.5 months later showed that the vein was widely patent with no stenosis or thrombus. Our observations in these two patients were that an FTCC-omentum pack alone secured rapid hemostasis in severe SMV laceration, and when a peritoneal patch was interposed between FTCC and a lacerated SMV, FTCC-induced vein thrombosis did not occur.

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