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The significance of serratia as an infectious organism
Abstract:
The hospital records of 48 patients with infections due to Serratia marcescens were reviewed. Isolates from these patients had been cultured during the period from August 1973 through July 1975, at which time an increase in frequency of infections due to Serratia had been noted. Most of these patients were elderly males with chronic debilitating diseases. All patients had received antimicrobial therapy prior to the time Serratia was first isolated. The majority had had indwelling urinary catheters inserted during some period of their hospitalization. Isolates were obtained predominantly from the urinary tract. In six of the 11 patients who died, Serratia appeared to play a role in the outcome, and all three patients with Serratia septicemia died. Serratia marcescens can be a virulent pathogen with a high degree of resistance to antibacterial agents. Attention must be given to the use of a sterile technique for insertion of urinary catheters, frequent care and cleansing of the catheter-meatal junction and use of a closed drainage system.
Insights
Serratia marcescens infections are a serious threat, especially in elderly males with chronic illnesses. Strict sterile techniques for urinary catheterization are crucial to prevent these resistant bacterial infections.
Area of Science:
- Clinical Microbiology
- Infectious Diseases
- Hospital Epidemiology
Background:
- An increase in Serratia infections was observed between August 1973 and July 1975.
- Patients were predominantly elderly males with chronic debilitating conditions.
- Prior antimicrobial therapy was common among infected patients.
Purpose of the Study:
- To review hospital records of patients with Serratia marcescens infections.
- To identify risk factors and outcomes associated with Serratia infections.
- To emphasize preventive measures against Serratia.
Main Methods:
- Retrospective review of 48 patient hospital records.
- Analysis of bacterial isolates cultured from August 1973 to July 1975.
- Correlation of patient demographics, comorbidities, and interventions with Serratia isolation.
Main Results:
- Urinary tract infections were the most common presentation.
- Indwelling urinary catheters were frequently used in affected patients.
- Serratia marcescens demonstrated significant resistance to antimicrobial agents.
- Mortality was high, particularly in cases of Serratia septicemia (3/3 deaths).
- Serratia contributed to the outcome in 6 of 11 fatal cases.
Conclusions:
- Serratia marcescens is a virulent pathogen with high antimicrobial resistance.
- Urinary catheterization practices require stringent sterile techniques.
- Closed drainage systems and meticulous catheter care are essential.
- Preventive strategies are vital to combat Serratia outbreaks.