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Titre du document / Document title

Ethylene oxide on electrophysiology catheters following resterilization : Implications for catheter reuse

Auteur(s) / Author(s)

FERRELL M. ; WOLF C. E. ; ELLENBOGEN K. A. ; WOOD M. A. ; CLEMO H. F. ; GILLIGAN D. M. ;

Affiliation(s) du ou des auteurs / Author(s) Affiliation(s)

Division of Cardiology, Departmenl of Internal Medicine, and Toxicology laboratory, Department of Pathology, Medical College of Virginia and Virginia Commonwealth University, Richmond, Virginia, ETATS-UNIS

Résumé / Abstract

Reuse of electrophysiology catheters is an important cost-saving option or many laboratories. However, to be reused sa ely, catheters must undergo resterilization with ethylene oxide (EtO). Residual EtO levels on resterilized catheters may be high and could pose a risk to patients. Resterilized diagnostic electrophysiology catheters were tested for residual EtO using headspace gas chromatography after both a standard resterilization with an aeration process and after a resterilization process that incorporated a detoxification period. The Food and Drug Administration's maximum permissible level of EtO for implantable products, 25 parts per million (ppm), was used as the cutoff for acceptable catheter residuals. At day 2 after standard resterilization, the residual level of EtO on catheters was high at 41 ± 6 ppm. However, these levels decreased with shelf time, decreasing to 26 ± 3 ppm by day 7 and to 14 ± 2 ppm by day 14 after sterilization, at which time all catheters were <25 ppm (p <0.001). Detoxification periods of 6, 12, and 15 hours were tested and 15 hours was found to be optimal. After 15 hours of detoxification, residual EtO was 19 ± 1 ppm by day 2 and all catheters were <25 ppm. In summary, electrophysiology catheters that have undergone resterilization have residual EtO levels that are twice the Food and Drug Administration's limit for implantable products. Residual EtO levels may be substantially reduced either by allowing a 14-day waiting period after resterilization or by incorporating a detoxification period immediately after EtO exposure.

Revue / Journal Title

The American journal of cardiology    ISSN  0002-9149   CODEN AJCDAG 

Source / Source

1997, vol. 80, no12, pp. 1558-1561 (15 ref.)

Langue / Language

Anglais

Editeur / Publisher

Elsevier, New York, NY, ETATS-UNIS  (1958) (Revue)

Mots-clés anglais / English Keywords

Catheter

;

Reuse

;

Ethylene oxide

;

Chemical sterilization

;

Electrophysiology

;

Exploration

;

Technique

;

Human

;

Mots-clés français / French Keywords

Cathéter

;

Réutilisation

;

Oxirane

;

Stérilisation chimique

;

Electrophysiologie

;

Exploration

;

Technique

;

Homme

;

Mots-clés espagnols / Spanish Keywords

Catéter

;

Reutilización

;

Oxirano

;

Esterilización química

;

Electrofisiología

;

Exploración

;

Técnica

;

Hombre

;

Localisation / Location

INIST-CNRS, Cote INIST : 8674, 35400007727374.0090

Nº notice refdoc (ud4) : 2089048



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