What type of renal failure results from ischemic events similar to those in prerenal causes?

Intrarenal renal failure, also known as intrinsic renal failure, occurs when there is direct damage to the kidneys themselves, which can be caused by various factors, including ischemic events. Ischemia can lead to a reduction in renal blood flow, causing cellular injury and dysfunction within the nephron, particularly in the renal tubules.

In the context of renal failure, intrinsic damage is often characterized by conditions such as acute tubular necrosis (ATN), which frequently results from prolonged ischemia following a prerenal event. While prerenal causes stem from factors external to the kidney that cause decreased perfusion, intrinsic renal failure occurs as a direct consequence of that ischemic damage within the kidney tissue.

Chronic renal failure refers to a gradual loss of kidney function over time and is distinct from acute processes. Postrenal renal failure results from obstruction of urine flow, complicating the clinical picture of acute or chronic kidney issues but is not related to ischemic damage. Therefore, recognizing that intrinsic renal failure encompasses damage resulting from ischemia provides clarity in understanding the underlying mechanisms of kidney injury in critical care scenarios.