Effect of semiquantitative culture results from complex host surgical wounds on dehiscence rates.

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Citation: Wound Repair & Regeneration. 25(2):210-216, 2017 04.PMID: 28090708Institution: MedStar Washington Hospital CenterDepartment: Surgery/Plastic SurgeryForm of publication: Journal ArticleMedline article type(s): Journal ArticleSubject headings: *Bacteriological Techniques/mt [Methods] | *Debridement/mt [Methods] | *Surgical Wound Dehiscence/mi [Microbiology] | *Surgical Wound Infection/mi [Microbiology] | Adult | Aged | Aged, 80 and over | Anti-Bacterial Agents/pd [Pharmacology] | Culture Media | Female | Gram-Negative Bacteria/ip [Isolation & Purification] | Gram-Positive Bacteria/ip [Isolation & Purification] | Humans | Male | Microbial Sensitivity Tests | Middle Aged | Prospective Studies | Randomized Controlled Trials as Topic | Wound Healing/ph [Physiology]Year: 2017ISSN:
  • 1067-1927
Name of journal: Wound repair and regeneration : official publication of the Wound Healing Society [and] the European Tissue Repair SocietyAbstract: Copyright (c) 2017 by the Wound Healing Society.The primary aim of this study was to determine the effect of positive bacterial cultures at the time of closure on dehiscence rates. Pre- and post-debridement wound cultures from patients undergoing serial surgical debridement of infected wounds were compared with outcomes 30 days postoperatively. One-hundred patients were enrolled; 35 were excluded for incomplete culture data. Sixty-five patients were evaluated for species counts, including Coagulase negative Staphylococcus (CoNS), and semiquantitative culture data for each debridement. The post-debridement cultures on the date of closure had no growth in 42 patients (64.6%) of which 6 dehisced (14.3%), and 36 remained closed; with no statistically significant difference in dehiscence rates (p=0.0664). Pre-debridement cultures from the 1st debridement of the 65 patients showed 8 patients had no growth, 29 grew 1 species, 19 grew 2 species, and 9 had 3-5 species. There was a reduction in the number of species and improvement of semiquantitative cultures with each subsequent debridement. The dehiscence rate for those who had 2 debridements (n=42) was 21.4% at 30 day follow-up and 21.7% in those who had 3 debridements (n=23). The number of debridements had no statistical significance on dehiscence rates. The presence of CoNS on the day of closure was a statistically significant risk for dehiscence within 30 days (p=0.0091) postoperatively. This data demonstrates: (1) positive post-debridement cultures (scant/rare, growth in enrichment broth) at the time of closure did not affect overall dehiscence rates (p=0.0664), (2) the number of species and semiquantitative culture results both improved with each subsequent debridement, (3) the number of surgical debridement did not influence postclosure dehiscence rates. (4) Positive cultures containing CoNS at the time of closure is a risk factor for dehiscence (p=0.0091).All authors: Attinger CE, Elmarsafi T, Evans KK, Garwood CS, Kim PJ, Steinberg JSFiscal year: FY2017Digital Object Identifier: ORCID: Date added to catalog: 2017-05-06
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Journal Article MedStar Authors Catalog Article 28090708 Available 28090708

Copyright (c) 2017 by the Wound Healing Society.

The primary aim of this study was to determine the effect of positive bacterial cultures at the time of closure on dehiscence rates. Pre- and post-debridement wound cultures from patients undergoing serial surgical debridement of infected wounds were compared with outcomes 30 days postoperatively. One-hundred patients were enrolled; 35 were excluded for incomplete culture data. Sixty-five patients were evaluated for species counts, including Coagulase negative Staphylococcus (CoNS), and semiquantitative culture data for each debridement. The post-debridement cultures on the date of closure had no growth in 42 patients (64.6%) of which 6 dehisced (14.3%), and 36 remained closed; with no statistically significant difference in dehiscence rates (p=0.0664). Pre-debridement cultures from the 1st debridement of the 65 patients showed 8 patients had no growth, 29 grew 1 species, 19 grew 2 species, and 9 had 3-5 species. There was a reduction in the number of species and improvement of semiquantitative cultures with each subsequent debridement. The dehiscence rate for those who had 2 debridements (n=42) was 21.4% at 30 day follow-up and 21.7% in those who had 3 debridements (n=23). The number of debridements had no statistical significance on dehiscence rates. The presence of CoNS on the day of closure was a statistically significant risk for dehiscence within 30 days (p=0.0091) postoperatively. This data demonstrates: (1) positive post-debridement cultures (scant/rare, growth in enrichment broth) at the time of closure did not affect overall dehiscence rates (p=0.0664), (2) the number of species and semiquantitative culture results both improved with each subsequent debridement, (3) the number of surgical debridement did not influence postclosure dehiscence rates. (4) Positive cultures containing CoNS at the time of closure is a risk factor for dehiscence (p=0.0091).

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