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Risk factors for peritoneal dialysis-related peritonitis: can we reduce the incidence and improve patient selection?
Despina Kotsanas1, Kevan R Polkinghorne, Tony M Korman
1Department of Infectious Diseases, Southern Health - Monash Medical Centre, Clayton, Victoria, Australia. despina.kotsanas@southernhealth.org.au
Insights
Peritonitis risk in peritoneal dialysis (PD) increases with age, female gender, and smoking. Identifying these factors aids patient selection and monitoring for PD-related infections.
Area of Science:
- Nephrology
- Public Health
Background:
- Peritonitis is a severe complication of peritoneal dialysis (PD).
- It leads to hospitalization, catheter loss, and mortality.
- Identifying risk factors is crucial for patient management.
Purpose of the Study:
- To identify risk factors for peritonitis in peritoneal dialysis patients.
- To improve patient selection and monitoring protocols.
Main Methods:
- Prospective cohort study from 1992-2003.
- Data from 506 PD patients over 12,844 patient-months.
- Merged registry and laboratory databases for comorbidities, demographics, and peritonitis episodes.
Main Results:
- Increased peritonitis risk associated with older age (OR 1.26 per 10 years).
- Female gender (OR 1.91) and current smoking (OR 1.71) significantly increased risk.
- The pre twin bag connection system showed higher peritonitis rates (OR 2.07).
Conclusions:
- Age, female gender, and smoking are key risk factors for PD peritonitis.
- These findings support targeted selection, training, and monitoring of PD patients.
- Understanding risk factors can reduce peritonitis incidence and improve outcomes.
Background:
Peritonitis is a serious complication of peritoneal dialysis (PD) and a major cause of hospitalization, catheter loss, transfer to haemodialysis and death. Thus, it is important to identify risk factors for PD-related peritonitis in order to reduce the incidence and improve patient selection.
Methods:
This study is a prospective cohort review (1992-2003) with data consisting of 12,844 patient months, 506 PD patients and 623 episodes of peritonitis. Comorbidities and patient demographics were provided by the Australian and New Zealand Dialysis and Transplant Registry and these were merged with the hospital combined clinical and microbiology laboratory peritonitis database.
Results:
Variables identified to be associated with an increased likelihood of peritonitis were: age (every 10 years; OR, 1.26; 95% CI, 1.07-1.48), gender (female; OR, 1.91; 95% CI, 1.2-3.01), current smoker at entry to dialysis (OR, 1.71; 95% CI, 1.04-2.82) and the pre twin bag connection system (OR, 2.07; 95% CI, 1.22-3.52).
Conclusion:
Increasing age, female gender and smoking increased the risk of peritonitis. Identifying these risk factors will assist in the selection, training and monitoring of our PD population.
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