Effect of atorvastatin as a renal protective agent in patients with systemic inflammatory response syndrome using the renal arterial resistive index

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BACKGROUND: Current meta-analyses have yielded inconclusive results regarding the effectiveness of statins in preventing early renal injury in the context of poly-trauma. Notably, renal artery Doppler-derived resistance indices have shown a strong correlation with early detection of renal impairment, underscoring their importance in clinical assessment. METHODS: The study involved 106 adults aged 18 years and older of both sexes, who presented to Minia University Hospital, Egypt, with poly-trauma with a two-point or greater increase in the sequential organ failure assessment score within the first 72 hours of hospital admission and who met two or more of the diagnostic criteria of systemic inflammatory response syndrome. Participants were randomly assigned to either the atorvastatin group, which received oral atorvastatin at a dosage of 20 mg every 12 hours for 1 week alongside conventional therapy (antimicrobial agents and balanced crystalloids), or the control group, which received conventional therapy along with a placebo tablet every 12 hours for 1 week. RESULTS: The atorvastatin group yielded a significantly lower incidence of acute kidney injury (AKI; P<0.001). Additionally, there was significant reduction in renal resistance and pulsatility indices in the atorvastatin group. Furthermore, the atorvastatin group exhibited a shorter intensive care unit (ICU) stay (P=0.004). The renal index had a sensitivity of 90% and specificity of 68% for AKI prediction when the cutoff value was 0.61. Pulsatility index had a sensitivity of 90% and a specificity of 53% when the cutoff value was 1.28. CONCLUSIONS: Atorvastatin was impactful in mitigating the incidence of AKI, improving renal resistive vascular indices, and abbreviating ICU stays in the poly-traumatized population.

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