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Study on Time Distribution and Pathogenic Bacteria of Infection After Auricular Reconstruction With Tissue Expansion
Xuanye Jia1, Ruonan Su, Jiajun Zhi
1Plastic Surgery Hospital and Institute, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China.
Background:
Postoperative infection is one of the main complications that affect the surgical effect of auricular reconstruction with tissue expansion. Understanding the susceptible time and distribution of pathogens is especially important for the treatment.
Method:
The data of patients with infection after auricular reconstruction with tissue expansion from September 1, 2018 to August 30, 2024 were collected retrospectively. The microbe species identification results, diagnosis time of infection, surgical methods, and kinds of pathogenic bacteria were analyzed. Statistical methods were used to analyze and calculate the difference in infection time and the distribution of pathogenic bacteria.
Result:
From September 1, 2018 to August 30, 2024, 237 cases of infection after auricle reconstruction with tissue expansion were diagnosed, and 252 strains of 18 kinds of pathogenic bacteria were detected. Among them, S. aureus (85 strains, 33.73%) and S. epidermidis (40 strains, 15.87%) were the 2 main pathogens. Postoperative infection mainly occurred in the first stage (72 cases, 30.38%) and the second stage (98 cases, 41.35%). The MRSA infection rate in the second stage (24.46%) was significantly higher than that in the other stages. The infection rate was significantly higher in winter (from November to January) (P<0.05). There was no significant difference among other seasons (P>0.05).
Conclusion:
The main pathogen of infection after ear reconstruction with tissue expansion is Staphylococcus aureus, and winter is the peak period of infection. There are some differences in infection rate and distribution of pathogenic bacteria in different stages of surgery.
Insights
Postoperative infections after auricular reconstruction are often caused by Staphylococcus aureus, particularly during winter. Infections are most common in the first two surgical stages.
Area of Science:
- Plastic Surgery
- Infectious Diseases
- Microbiology
Background:
- Postoperative infection is a significant complication following auricular reconstruction using tissue expansion.
- Identifying pathogen timing and distribution is crucial for effective treatment strategies.
Purpose of the Study:
- To analyze the timing and distribution of pathogens causing infections after auricular reconstruction with tissue expansion.
- To identify the primary causative agents and peak infection periods.
Main Methods:
- Retrospective analysis of patient data from September 2018 to August 2024.
- Identification of microbe species, infection diagnosis times, and surgical methods.
- Statistical analysis of infection timing and pathogenic bacteria distribution.
Main Results:
- 237 infection cases diagnosed, with 252 strains from 18 bacterial types identified.
- Staphylococcus aureus (33.73%) and S. epidermidis (15.87%) were the predominant pathogens.
- Infections peaked in the first (30.38%) and second (41.35%) surgical stages, with higher MRSA rates in the second stage. Winter showed a significantly higher infection rate (P<0.05).
Conclusions:
- Staphylococcus aureus is the primary pathogen in post-auricular reconstruction infections.
- Winter represents the peak season for these infections.
- Infection rates and pathogen distribution vary across different surgical stages.
