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The microbiological and mechanical integrity of batch tested and individually tested surgical gloves

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Jamal, A (2000) The microbiological and mechanical integrity of batch tested and individually tested surgical gloves. Research Master thesis, University of Tasmania.

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Abstract

The most common surgical gloves used at the Royal Hobart Hospital are
'Individually Tested' (IT) gloves, in which each glove is tested for leaks by the
manufacturer prior to sterilization and packaging. A cheaper brand of glove is
available in which sample gloves from manufactured batches are tested for leaks
(BT), but not each glove. The latter gloves were widely rejected by surgeons on
the theoretical ground that there would be more perforations, and consequently
more wound infection and greater exposure of staff to patient pathogens.
However no objective study had been done to test this conjecture.
The aims of this study were to compare the integrity of the two brands of gloves
by mechanical and microbiological methods, and to compare the incidence of postoperative
wound infection following the use of either brand.
110 unused gloves of each brand were tested for leaks. 318 IT and 278 BT gloves
were then tested after clean surgery, for mechanical leaks. Scrub-team member's
gloves and hands were cultured post-surgery. Wound infection rates were
compared.
The pre-use perforation rate was not significantly different. The macroperforation
rate for if gloves was slightly but statistically significantly higher than for BT
gloves, and no bias in types of operations or in staff members could be uncovered
to account for this.
Growth of normal skin flora was found on virtually every wearer's hands after
removal of gloves, suggesting a failure of current scrub techniques or solutions to
eliminate skin flora. Furthermore these bacteria were commonly cultured from the
outside of the gloves at the conclusion of surgery, indicating development of
microporosity of the glove-latex during surgery. There was a statistically
significant difference in the glove outer-surface bacterial detection rates between
the brands (BT>IT) indicating a difference in latex properties between brands. It is
suggested that a standardized form of this test could be developed as a quality
measure of surgical gloves.
A final finding was the absence of translation of macroperforation rates or
bacterial culture rates into morbidity as measured by wound infection. It could be
concluded that for this type of surgery, the detected glove differences are
irrelevant with regard to patient morbidity. However caution is suggested in
extending these findings to situations of known patient infectivity (eg. HIV or
viral hepatitis) or to cases where Am contamination could be a serious problem
(eg. joint surgery or neurosurgery). The data adds weight to the strategy of double
gloving.

Item Type: Thesis (Research Master)
Keywords: Gloves (Surgery)
Copyright Holders: The Author
Copyright Information:

Copyright 2000 the Author - The University is continuing to endeavour to trace the copyright
owner(s) and in the meantime this item has been reproduced here in good faith. We
would be pleased to hear from the copyright owner(s).

Additional Information:

Thesis (M.Med.Sc.)--University of Tasmania, 2000. Includes bibliographical references

Date Deposited: 19 Dec 2014 02:40
Last Modified: 28 Jun 2017 01:31
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