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Hydrogen Peroxide Damaging to Absorbable SuturesFrom: Gail Neuman (GIN11153@aol.com)Sat Sep 29 11:46:30 2007
I didn't know this: ... Hydrogen peroxide has been shown to dramatically decrease the strength of absorbable sutures, according to a study conducted at UT Southwestern Medical Center. Absorbable sutures disintegrate harmlessly in the body as the wound heals, as opposed to nonabsorbable sutures, which must be removed once healing has occurred. In the study, 15 samples of absorbable and nonabsorbable sutures were examined. Two groups were dipped in either distilled water or a hydrogen peroxide solution for five minutes twice a day, while the control groups remained unmanipulated. The study lasted for five days, to imitate a wound-care regimen. At the end of the study, the samples were subjected to strength testing. The study showed that: * The absorbable sutures disintegrated upon handling prior to being subjected to the strength testing. * Nonabsorbable sutures were unaffected by either the water or the hydrogen peroxide solution. * The absorbable sutures that were treated with water retained their strength and durability in comparison to the control groups. Since the role of absorbable sutures is to hold a wound closed until it can naturally heal itself, cleaning with hydrogen peroxide may negate their value, resulting in longer healing times and widened scars. "Patients need to know that hydrogen peroxide should not be used on these types of sutures and that saline or soap and water should be the preferred cleaning solution," said Dr. Joseph Leach, associate professor of otolaryngology and senior author of the study.
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