The global, prevalence, and risk factors of postoperative fever after percutaneous nephrolithotomy: A systematic review and meta-analysis

Objective

This study aimed to explore the global, prevalence, and risk factors of fever after percutaneous nephrolithotomy (PCNL) by conducting a systematic review and meta-analysis.

Methods

The high-sensitivity searching was conducted without time limitation until December 30, 2020 in Web of Sciences, Scopus, and PubMed based on inclusion and exclusion criteria.

Results

The prevalence rates of fever and sepsis among patient undergoing PCNL were estimated 9.5% (95% confidence interval [CI]: 9.3%–9.7%), and 4.5% (95% CI: 4.2%–4.8%), respectively. Nephrostomy tube was used in 9.96% (95% CI: 9.94%–9.97%) of patients. The mean preoperative white blood cells of patients were 6.401×10⁹/L; 18.3% and 4.55% of patients were considered as the positive urinary culture and pyuria, respectively. About 20.4% of patients suffered from residual stones. The odds ratios (ORs) of fever in patients who suffering from diabetes mellitus, hydronephrosis, staghorn stones, and blood transfusion were 4.62 (95% CI: 2.95–7.26), 1.04 (95% CI: 0.81–1.34), 2.57 (95% CI: 0.93–7.11), and 2.65 (95% CI: 1.62–4.35), respectively. Patients who underwent PCNL in prone position were more likely to develop fever (OR: 1.23; 95% CI: 0.75–2.00) than patients in supine position.

Conclusion

The current study showed that patients who suffer from diabetes mellitus, hydronephrosis, staghorn stones, nephrostomy tube or double-J stent, blood transfusion, and also patients who underwent PCNL in prone position surgery are more likely to develop a postoperative fever after PCNL.