scholarly journals Usefulness of artificial vascular graft for venous reconstruction in liver surgery

2014 ◽  
Vol 12 (1) ◽  
pp. 113 ◽  
Author(s):  
Tatsuya Orimo ◽  
Toshiya Kamiyama ◽  
Hideki Yokoo ◽  
Tatsuhiko Kakisaka ◽  
Kenji Wakayama ◽  
...  
HPB ◽  
2019 ◽  
Vol 21 (1) ◽  
pp. 114-120 ◽  
Author(s):  
Benjamin P.T. Loveday ◽  
Martin J. Dib ◽  
Sangita Sequeira ◽  
Nouf Alotaiby ◽  
Robin Visser ◽  
...  

2017 ◽  
Vol 33 (S 01) ◽  
pp. S14-S19
Author(s):  
Francesca Toia ◽  
Giovanni Zabbia ◽  
Tiziana Roggio ◽  
Roberto Pirrello ◽  
Adriana Cordova ◽  
...  

Background The use of vascular grafts is indicated in case of insufficient pedicle length or for complex defects involving both soft tissues and vessels. Venous grafts (for both venous and arterial reconstructions) and arterial grafts (arterial reconstruction) can be used. This study retrospectively evaluated the needs for vascular reconstruction and its results in a clinical series of lower limb reconstructions with microsurgical free flaps. Materials and Methods From 2010 to 2015, a total of 16 vascular grafts or flow-through flaps were used in 12 patients out of a total of 150 patients undergoing microsurgical reconstruction (8%). Arterial reconstruction was performed in seven cases (six flow-through flaps, one arterial graft), combined arterial and venous reconstruction in four cases (three vein grafts, one combined venous/arterial graft), and venous reconstruction in one case (one venous graft). The rate of complications and donor-site morbidity related to vascular graft harvest were evaluated. Results Reconstruction was successful in all cases, despite an overall complication rate of 17 and 8% of surgical revision. Donor-site morbidity, subjectively evaluated, was minimal with respect to functional deficits and aesthetic outcome. Indications for the different types of grafts are discussed. Conclusion The use of vascular grafts is needed in a relevant percentage of microsurgical reconstruction cases. Venous and arterial vascular grafts, transient arteriovenous fistulas, and “flow-through” microsurgical flaps showed a safe reconstruction comparable to microsurgical reconstructions without the use of grafts. Donor-site morbidity secondary to vascular graft harvest is minimal, and in almost 70% of cases no additional scars are needed.


VASA ◽  
2020 ◽  
Vol 49 (4) ◽  
pp. 281-284
Author(s):  
Atıf Yolgosteren ◽  
Gencehan Kumtepe ◽  
Melda Payaslioglu ◽  
Cuneyt Ozakin

Summary. Background: Prosthetic vascular graft infection (PVGI) is a complication with high mortality. Cyanoacrylate (CA) is an adhesive which has been used in a number of surgical procedures. In this in-vivo study, we aimed to evaluate the relationship between PVGI and CA. Materials and methods: Thirty-two rats were equally divided into four groups. Pouch was formed on back of rats until deep fascia. In group 1, vascular graft with polyethyleneterephthalate (PET) was placed into pouch. In group 2, MRSA strain with a density of 1 ml 0.5 MacFarland was injected into pouch. In group 3, 1 cm 2 vascular graft with PET piece was placed into pouch and MRSA strain with a density of 1 ml 0.5 MacFarland was injected. In group 4, 1 cm 2 vascular graft with PET piece impregnated with N-butyl cyanoacrylate-based adhesive was placed and MRSA strain with a density of 1 ml 0.5 MacFarland was injected. All rats were scarified in 96th hour, culture samples were taken where intervention was performed and were evaluated microbiologically. Bacteria reproducing in each group were numerically evaluated based on colony-forming unit (CFU/ml) and compared by taking their average. Results: MRSA reproduction of 0 CFU/ml in group 1, of 1410 CFU/ml in group 2, of 180 200 CFU/ml in group 3 and of 625 300 CFU/ml in group 4 was present. A statistically significant difference was present between group 1 and group 4 (p < 0.01), between group 2 and group 4 (p < 0.01), between group 3 and group 4 (p < 0.05). In terms of reproduction, no statistically significant difference was found in group 1, group 2, group 3 in themselves. Conclusions: We observed that the rate of infection increased in the cyanoacyrylate group where cyanoacrylate was used. We think that surgeon should be more careful in using CA in vascular surgery.


2009 ◽  
Vol 69 (05) ◽  
Author(s):  
EC Schest ◽  
H Cerwenka ◽  
A El-Shabrawi ◽  
H Bacher ◽  
HJ Mischinger

1985 ◽  
Vol 54 (04) ◽  
pp. 842-848 ◽  
Author(s):  
Kandice Kottke-Marchant ◽  
James M Anderson ◽  
Albert Rabinovitch ◽  
Richard A Huskey ◽  
Roger Herzig

SummaryHeparin is known to affect platelet function in vitro, but little is known about the effect of heparin on the interaction of platelets with polymer surfaces in general, and vascular graft materials in particular. For this reason, the effect of heparin vs. citrate anticoagulation on the interaction of platelets with the vascular graft materials expanded polytetrafluoroethylene (ePTFE), Dacron Bionit (DB) and preclotted Dacron Bionit (DB/PC) was studied in a recirculating, in vitro perfusion system. Platelet activation, as shown by a decrease in platelet count, an increase in platelet release and a decrease in platelet aggregation, was observed for all vascular graft materials tested using heparin and was greater for Dacron and preclotted Dacron than for ePTFE. Significant differences between heparin and citrate anticoagulation were seen for platelet release, platelet aggregation and the relative ranking of material platelet-reactivity. However, the trends and time course of platelet activation were similar with both heparin and citrate for the materials tested.


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