Problems near Cooley double velour graft, esp. tear?

Answers:
Yes, the first generation graft tended to develop problems after the first decade of use.

Do a http://www.PubMed.gov survey:
. Blood Vessel Prosthesis AND Polyesters AND Prosthesis Failure .

From Van Damme:
Intrinsic structural failure of Dacron prostheses is a in arrears exceptional complication, resulting from a loss of structural integrity of the graft. The authors report six cases of non-anastomotic false aneurysms in the mid-portion of a vascular Dacron graft, observed at a mingy of 12 years after insertion.

From Nunn:
The literature contains several reports of excessive dilation and rupture in first-generation double velours. Causes of damp squib are listed as unknown or possible engineering flaws, damage during work or processing, mechanical fatigue, and biodegradation. More recent information, however, indicated that failure were cause by a change surrounded by the manufacturing process, specifically, substitution of trilobal filament for circular filaments surrounded by velour yarns.

From Kawata:
It is reported that structural flop of the first-generation Cooley Double Velour Dacron Graft was primarily related to the use of T-62 yarn with trilobal filament in the velour yarn. T-62 velour yarns next to trilobal filaments are of lower molecular counterweight, more subject to hydrolysis and earlier loss of face, and significantly weaker than the standard T-56 yarns near circular filaments, that are currently used contained by second-generation Cooley Double Velour and Microvel grafts. .. On the other appendage, we have reported a extraordinarily rare travel case of a nonanastomotic longitudinal rupture along the guideline of a polyester thoracic aortic graft (the first-generation Cooley Double Velour Dacron Graft) 19 years after implantation.

Huh?

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Problems near Cooley double velour graft, esp. tear?

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