PMID- 6850832 OWN - NLM STAT- MEDLINE DCOM- 19830708 LR - 20190829 IS - 0098-6569 (Print) IS - 0098-6569 (Linking) VI - 9 IP - 2 DP - 1983 TI - Fracture of a polyurethane cardiac catheter in the aortic arch: a complication related to polymer aging. PG - 197-207 AB - An undated Cordis Ducor polyurethane coronary catheter fractured and separated in the aortic arch during a cardiac catheterization, and was removed with an intravascular retriever. The recovered specimen appeared brittle, prompting an investigation of the effects of aging on the tensile strength of 91 polyurethane catheters manufactured by Cordis and the United States Catheter and Instrument Company (USCI). Cordis catheters have stable tensile strength for five years from manufacture, but then deteriorate substantially by seven years, particularly at the bond between the catheter tip and the stainless steel-reinforced catheter body. The deterioration is associated with the microscopic appearance of deep cracks in the catheter lumen wall. USCI catheters showed a modest but significant loss of tensile strength by three years after manufacture at the catheter bond. It would seem prudent to place a three-year expiration date on USCI polyurethane catheters, similar to those already on Cordis catheters. FAU - Schneider, R M AU - Schneider RM FAU - Fornes, R E AU - Fornes RE FAU - Stuckey, W C AU - Stuckey WC FAU - Gilbert, R D AU - Gilbert RD FAU - Peter, R H AU - Peter RH LA - eng GR - HL07101/HL/NHLBI NIH HHS/United States PT - Case Reports PT - Journal Article PT - Research Support, U.S. Gov't, P.H.S. PL - United States TA - Cathet Cardiovasc Diagn JT - Catheterization and cardiovascular diagnosis JID - 7508512 RN - 0 (Polyurethanes) SB - IM MH - Adult MH - *Aorta, Thoracic MH - Cardiac Catheterization/*adverse effects MH - Cineangiography MH - Female MH - Heart Valve Diseases/diagnosis MH - Humans MH - Microscopy, Electron, Scanning MH - Polyurethanes/*adverse effects MH - Rheumatic Heart Disease/diagnosis MH - Tensile Strength EDAT- 1983/01/01 00:00 MHDA- 1983/01/01 00:01 CRDT- 1983/01/01 00:00 PHST- 1983/01/01 00:00 [pubmed] PHST- 1983/01/01 00:01 [medline] PHST- 1983/01/01 00:00 [entrez] AID - 10.1002/ccd.1810090212 [doi] PST - ppublish SO - Cathet Cardiovasc Diagn. 1983;9(2):197-207. doi: 10.1002/ccd.1810090212.