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Titolo:
STABLE VORTICES WITHIN VEIN CUFFS INHIBIT ANASTOMOTIC MYOINTIMAL HYPERPLASIA
Autore:
DASILVA AF; CARPENTER T; HOW TV; HARRIS PL;
Indirizzi:
WREXHAM MAELOR HOSP,DEPT SURG,CROESNEWYDD RD WREXHAM LL13 7TD WALES ROYAL LIVERPOOL UNIV HOSP LIVERPOOL MERSEYSIDE ENGLAND
Titolo Testata:
European journal of vascular and endovascular surgery
fascicolo: 3, volume: 14, anno: 1997,
pagine: 157 - 163
SICI:
1078-5884(1997)14:3<157:SVWVCI>2.0.ZU;2-N
Fonte:
ISI
Lingua:
ENG
Soggetto:
POLYTETRAFLUOROETHYLENE GRAFTS; INTIMAL HYPERPLASIA; AUTOGENOUS VEIN; FEMOROPOPLITEAL BYPASS; PROLIFERATION; FAILURE; RECONSTRUCTION;
Keywords:
MIH; MILLER CUFF; INTERPOSITION CUFF; VORTEX; VASCULAR ANASTOMOSIS; COLOR DOPPLER; CINE INTRAARTERIAL DIGITAL SUBTRACTION ANGIOGRAPHY; LABORATORY MODEL;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Science Citation Index Expanded
Citazioni:
27
Recensione:
Indirizzi per estratti:
Citazione:
A.F. Dasilva et al., "STABLE VORTICES WITHIN VEIN CUFFS INHIBIT ANASTOMOTIC MYOINTIMAL HYPERPLASIA", European journal of vascular and endovascular surgery, 14(3), 1997, pp. 157-163

Abstract

Objectives: Interposition vein cuffs improve the patency of below-knee ePTFE arterial grafts, and there is evidence that they do so, at least in part, by modifying the distribution of myointimal hyperplasia (MIH) at the distal anastomosis. Alteration of local haemodynamics is one of the mechanisms which might be involved. The purpose of this studywas to characterise the local haemodynamics within an interposition vein cuff. Material and Methods: Flow patterns have been analysed in a laboratory model of cuffed anastomosis and compared with observations made in patients by cine intra-arterial digital subtraction angiography (IA DSA) and dynamic colour duplex scanning. Results: In contrast tonon-cuffed anastamoses in which the flop is predominately laminar, cuffed anastomoses are associated with the formation gin coherent vortex. Conclusion: High frictional forces or shear stress exerted upon the arterial wall by the vortex could explain the beneficial effect of a cuff upon anastomotic MIH, in which case the optimal configuration of small vessel anastomoses would be that which most effectively promotes the formation of this type of vortex.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 05/12/20 alle ore 20:19:18