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Nosocomial infections and infection control in regional anesthesia
S Schulz-Stübner1, J M Pottinger, S A Coffin
1Beratungszentrum für Hygiene (BZH), Universitätsklinikum Freiburg, Freiburg, Germany. schulz-stuebner@bzh-freiburg.de
Background:
Although rare, infectious complications from regional anesthesia and analgesia can be devastating. The literature on this topic consists primarily of surveys, case reports, case series, and studies in which used supplies were cultured. We derived infection control recommendations from the existing literature and compared these recommendations with existing guidelines.
Methods:
Structured literature search of the Cochrane Central Register of Controlled Trials, MEDLINE, including old MEDLINE and EMBASE until 2005. Descriptive statistics were cited when applicable.
Main Results:
Incidence rates for infectious complications vary substantially between studies and range from 3.7 to 7.2/100,000 for spinal anesthesia-associated meningitis and from 0.2 to 83/100,000 for epidural anesthesia-associated epidural abscesses. Few comprehensive prospective trials have been conducted and most case reports do not provide complete information about infection control practices.
Conclusion:
Studies using more robust methods are necessary to define the rates of infection after different regional anesthesia procedures and to identify risk factors for infections. Data on risk factors would allow anesthesiologists to develop evidence-based guidelines for placement and care of catheters used for regional anesthesia. A multicenter surveillance system may help anesthesiologists address some of the unanswered questions and to develop evidence-based infection control recommendations.
Insights
Infectious complications from regional anesthesia are rare but serious. More robust studies are needed to establish infection rates and develop evidence-based guidelines for preventing these devastating outcomes.
Area of Science:
- Anesthesiology
- Infectious Disease Control
Background:
- Infectious complications from regional anesthesia, though rare, can be severe.
- Existing literature relies heavily on case reports and surveys, lacking comprehensive data.
- Current infection control recommendations are derived from limited evidence.
Purpose of the Study:
- To derive infection control recommendations from the existing literature.
- To compare these derived recommendations with current guidelines.
- To highlight the need for more robust research in regional anesthesia infection prevention.
Main Methods:
- A structured literature search was conducted across major databases (Cochrane, MEDLINE, EMBASE) up to 2005.
- Descriptive statistics were used where applicable to summarize findings.
- Analysis focused on identifying reported infection rates and available data on infection control practices.
Main Results:
- Infection rates for regional anesthesia complications vary widely, with spinal meningitis ranging from 3.7-7.2/100,000 and epidural abscesses from 0.2-83/100,000.
- Few prospective trials exist, and case reports often lack complete infection control information.
- Significant variability in reported incidence rates underscores the need for standardized data collection.
Conclusions:
- More rigorous studies are essential to accurately define infection rates associated with various regional anesthesia procedures.
- Identifying specific risk factors is crucial for developing evidence-based guidelines for catheter placement and care.
- A multicenter surveillance system could significantly advance the development of effective infection control recommendations.
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