THE END OF MRSA: POLYTOXINOL(TM) A NEW ANTIBACTERIAL AGENT

2002 
Introduction: Over 75% of hospital-acquired infections are methicillin-resistant staphyloccoal (MRSA) infections. There is an urgent need to find alternatives to treat such infections. We report our experience with the use of a topical antibacterial agent, Polytoxinol, PT (TM), combined with debridement, for the treatment of wound and bone infections where antibiotics had failed. PT is a complex formulation of eucalyptic plant extracts, shown to be strongly bactericidal in vitro against a broad range of aerobic bacteria. Methods: Staphylococcal infections were diagnosed in 6 cases by culture; 4 of these were confirmed as involving MRSA. In 8/9 patients, infection was localised at the site of ligament and/or bone surgery for repair of traumatic injury, or for prosthetic joint replacement. Results: Prior to this series, PT was applied as a biological wound sealant to 180 orthoapedic patients with two instances of localised sensitivity. Eight of the current 9 cases of wound infection, included 4 verified cases involving methicillin-resistant Staphylococcus aureus, were successfully treated by topical application of Polytoxinol, either without (6 patients), or in combination with systemic antibiotics (3 patients). In 8 patients, Polytoxinol application was followed by reduced inflammation, rapid granulation and healing even where infection was of >2 years standing. Adverse local tissue reaction shown by 1 patient quickly subsided on withdrawal of Polytoxinol. Conclusions: Polytoxinol antimicrobial liquid applied topically to infected wounds and bone is an effective broad spectrum bactericide. It has the potential to supplement, or in many instances replace, antibiotics in the treatment of such infections.
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