چکیده (انگلیسی):

Objective: To retrospectively review our experience of managing patients with
emphysematous pyelonephritis (EPN).
Methods: Case notes of patients with EPN were reviewed. The patients’ demographic data,
clinical presentation, investigation findings, treatment, and outcome were studied.
Results: Twelve patients were diagnosed with EPN. Majority (66.7%) of them had diabetes mellitus.
All patients had been evaluated by computed tomography (CT). Using the classification
proposed by Wan et al, five patients had type 1 EPN, whereas six, two, and four patients
had Huang and Tseng CT class 2, 3a, and 3b EPN, respectively. Immediate nephrectomy was
performed in six patients, whereas conservative treatment was adopted in the other six. In
the nephrectomy group, one patient died of disseminated sepsis after a protracted course.
Conservative treatment failed in three patients, who succumbed despite salvage nephrectomy
in two of them. Analysis revealed that severe hyperglycemia and radiological CT class (both
Wan and Huang systems) were significant predictors of mortality from EPN.
Conclusion: Severe hyperglycemia and CT class of EPN are significant risk factors for death. CT
is the investigation of choice for correct diagnosis of EPN. Additional intervention should be
offered to EPN patients with Wan type 1 and Huang and Tseng class 3 CT features.