The Overlooked Role of Postrenal Causes in Acute Renal Failure: A Urological Perspective

Abstract

This letter to the editor provides a urological perspective on a recent study investigating gender-related biochemical parameters in acute renal failure (ARF). ARF is traditionally classified as prerenal, intrinsic renal, or postrenal. While most studies emphasize prerenal and intrinsic etiologies, postrenal causes represent a clinically significant and often reversible subset, particularly in elderly men. Common etiologies include benign prostatic hyperplasia, prostate cancer, bladder tumors, ureteral calculi, and strictures. In this context, elevated serum creatinine levels in men may not only reflect differences in muscle mass but also a higher burden of obstructive pathology. Timely diagnosis with imaging and prompt decompression procedures can lead to full recovery of renal function in postrenal ARF. Therefore, systematic evaluation for obstructive causes should be an integral part of the diagnostic approach, especially in elderly male patients.

Keywords

• Acute renal failure
• postrenal causes
• obstructive uropathy
• benign prostatic hyperplasia
• creatinine

Akut Böbrek Yetmezliğinde Postrenal Nedenlerin Göz Ardı Edilen Rolü: Ürolojik Bir Bakış Açısı

Abstract

Bu editöryel mektupta, akut böbrek yetmezliğinde (ABY) cinsiyet farklılıklarına ilişkin biyokimyasal parametreleri inceleyen güncel bir çalışmaya ürolojik açıdan katkı sunulmaktadır. ABY’nin prerenal, intrarenal ve postrenal nedenlerle sınıflandırıldığı bilinmektedir. Literatürde genellikle prerenal ve intrarenal nedenler ön plana çıkmakla birlikte, postrenal nedenler özellikle ileri yaş ve erkek hastalarda önemli ve çoğu zaman geri dönüşümlü bir etiyolojiyi temsil etmektedir. Benign prostat hiperplazisi, prostat kanseri, mesane tümörleri, üreter taşları ve striktürler postrenal ABY’nin başlıca nedenleridir. Bu bağlamda erkeklerde kreatinin yüksekliğinin yalnızca kas kütlesine değil, aynı zamanda obstrüktif üropatiye de bağlı olabileceği vurgulanmaktadır. Erken tanı ve hızlı dekompresyon yöntemleri sayesinde postrenal ABY’de böbrek fonksiyonları tamamen geri kazanılabilir. Bu nedenle, özellikle yaşlı erkek hastalarda postrenal nedenlerin değerlendirilmesi tanısal yaklaşımın ayrılmaz bir parçası olmalıdır.

Keywords

• Akut böbrek yetmezliği
• postrenal nedenler
• obstrüktif üropati
• benign prostat hiperplazisi
• kreatinin

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