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Modified Dakin's solution for cutaneous vibrio infections
B J Wilhelmi1, T A Calianos, E A Appelt
1Division of Plastic Surgery, The University of Texas Medical Branch, Galveston 77555-0724, USA.
Abstract:
Vibrio species, specifically Vibrio vulnificus, are known to be endemic to warm saltwater environments. As a human pathogen they are capable of causing severe, progressive, necrotizing infections. The lesions are bullous in nature and often require wide surgical debridement due to the aggressiveness of this organism. The literature supports prophylactic antibiotic therapy for those with preexisting hepatic dysfunction or immunocompromise. The authors routinely implement prophylactic antibiotic coverage with doxycycline 100 mg every 12 hours for vibrio in patients with wounds exposed to or acquired in saltwater. In addition, they institute topical therapy with 0.025% sodium hypochlorite solution (modified Dakin's), based on their in vitro study of vibrio sensitivity to antimicrobials. Over the past 2 years, the authors have treated 10 patients with this protocol for cutaneous vibrio infections confirmed by quantitative cultures. None of these patients experienced progression of infection requiring operative debridement-contrary to the aggressive nature of this organism documented in other reports.
Insights
This study shows that prophylactic doxycycline and topical modified Dakin's solution effectively prevent severe Vibrio wound infections in saltwater-exposed patients. This protocol avoids aggressive surgical debridement for cutaneous vibrio infections.
Area of Science:
- Infectious Diseases
- Dermatology
- Microbiology
Background:
- Vibrio species, particularly Vibrio vulnificus, are prevalent in warm saltwater and cause severe necrotizing skin infections.
- These infections often manifest as bullous lesions and can necessitate extensive surgical debridement due to the pathogen's aggressive nature.
- Prophylactic antibiotic treatment is recommended for individuals with hepatic dysfunction or compromised immunity.
Purpose of the Study:
- To evaluate the efficacy of a prophylactic treatment protocol for cutaneous Vibrio infections.
- To determine if early intervention can prevent the progression of Vibrio wound infections requiring surgical intervention.
Main Methods:
- Implementation of prophylactic oral doxycycline (100 mg every 12 hours) for patients with saltwater-exposed wounds.
- Application of topical 0.025% sodium hypochlorite solution (modified Dakin's) based on in vitro vibrio sensitivity.
- Treatment of 10 patients with confirmed cutaneous Vibrio infections using this combined protocol over a 2-year period.
Main Results:
- No patients treated with the protocol experienced infection progression requiring operative debridement.
- The protocol demonstrated effectiveness in managing cutaneous Vibrio infections, contrasting with the typically aggressive course of such infections.
- Quantitative cultures confirmed Vibrio infections in all treated patients.
Conclusions:
- The prophylactic protocol combining oral doxycycline and topical modified Dakin's solution is effective in preventing severe outcomes of cutaneous Vibrio infections.
- This approach offers a viable alternative to surgical debridement for Vibrio-related wound infections.
- Early and appropriate antimicrobial management is crucial for mitigating the severity of Vibrio infections acquired in saltwater environments.