Background: Cisplatin is one of the most effective chemotherapy agents; however, its nephrotoxicity remains the primary dose-limiting factor. This study aimed to determine the prevalence and clinical course of acute kidney injury (AKI) in patients receiving high-dose cisplatin therapy.
Methods: This cross-sectional descriptive study was conducted at Ayatollah Khansari Hospital in Arak, based on clinical records of hospitalized patients from March 2021 to June 2022. Patients who received at least four cycles of cisplatin-based chemotherapy at a dose of 260 mg/m² were included. Data were extracted from the Hospital Information System (HIS) and physical records. Ninety eligible cases were selected via random sampling. Data were summarized using descriptive statistics.
Results: Regarding gender distribution, 54.4% were female (n=49) and 45.6% were male (n=41). The relative frequency of cisplatin-induced AKI was 21.11%. Overall, 26.32% of patients developed chronic kidney disease (CKD), 10.53% reached end-stage renal disease (ESRD), and only 11.42% recovered. An 18 to 24-month follow-up revealed a mortality rate of 21.05%, while 15.79% required treatment modification, and 5.26% needed kidney transplantation. No treatment discontinuation was observed. Logistic regression analysis identified female gender, age 61-70, age >70, poor hydration status, five or more chemotherapy cycles, and diabetes mellitus as significant risk factors for AKI.
Conclusion: High-dose cisplatin is associated with a high risk of permanent renal damage. Given the low recovery rate and the potential for progression to chronic renal failure, careful monitoring of risk factors and rigorous hydration management are vital for these patients.
