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[Experiences with 3151 central venous catheters at a surgical clinic]
L Lehr1, W Brandmair, J Kovacs
1Chirurgische Klinik und Poliklinik, Technische Universität München.
Insights
Central venous catheter infections were analyzed in over 3,000 patients. The Shaldon catheter and internal jugular vein insertion showed higher infection risks, emphasizing improved nursing and hygiene for prevention.
Area of Science:
- Infectious Diseases
- Medical Devices
- Clinical Research
Background:
- Central venous catheters (CVCs) are essential but prone to infection.
- Understanding infection rates and risk factors is crucial for patient safety.
- Previous studies highlight the need for improved CVC management protocols.
Purpose of the Study:
- To analyze the incidence of infections associated with central venous catheters.
- To identify specific catheter types and insertion sites that increase infection risk.
- To evaluate the effectiveness of different prophylactic measures against catheter-related infections.
Main Methods:
- Retrospective and prospective analysis of over 3,000 central venous catheter insertions over 18 months.
- Comparison of infection rates across different catheter types (Shaldon, Cavafix) and insertion sites (internal jugular, cubital, subclavian).
- Assessment of risk factors such as inflammation at the insertion site and evaluation of prophylactic strategies like early removal and routine replacement.
Main Results:
- The Shaldon catheter exhibited the highest infection rate among the studied types.
- Cavafix catheters showed significantly higher infection rates when inserted into the internal jugular vein compared to other sites.
- Catheter entry site inflammation was identified as a significant risk factor for infection.
- Early catheter removal was an effective prophylactic measure, while routine weekly replacement did not reduce infection rates.
- Catheter colonization and sepsis were primarily linked to nursing and hygiene practices.
Conclusions:
- Catheter type (Shaldon) and insertion site (internal jugular vein) significantly influence infection rates.
- Enhanced nursing care and hygiene, particularly by specially trained personnel, effectively reduced infection rates.
- Early removal of catheters is currently the most effective method for preventing infection, whereas routine replacement is not beneficial.
Abstract:
The incidence of infection among over 3,000 central venous catheters, placed over a period of 18 months, was analysed, 1,570 retrospectively and 1,581 prospectively. The Shaldon catheter had the highest infection rate of the various catheter types. Taking the findings of 983 catheters of one type, Cavafix, the infection rate was significantly higher when the internal jugular vein was the site of puncture instead of the cubital or subclavian veins. Signs of inflammation at the site of catheter entry were a further risk factor for infection. Although the clinical suspicion of catheter-induced sepsis proved groundless in nearly half the cases, early catheter removal is at present the most effective prophylactic means, while routine weekly catheter replacement did not reduce the infection rate. Catheter colonization and catheter sepsis are predominantly problems of nursing and hygiene. The infection rate was reduced through nursing and supervision by personnel specially trained in infectious precautions.