Related Experiment Video
Updated: Jun 20, 2026
06:02
Anatomical Reconstructions of the Human Cardiac Venous System using Contrast-computed Tomography of Perfusion-fixed Specimens
Published on: April 18, 2013
Radiocontrast-induced nephropathy: an update
1Acute dialysis services, Section of Nephrology, Department of Medicine, Yale University School of Medicine, FMP 107, 333 Cedar Street, New Haven, CT 06520-8029, USA. mark.perazella@yale.edu
Summary
Radiocontrast-induced nephropathy (RCIN) is a serious risk for patients undergoing imaging. Isotonic intravenous fluids are the only proven preventive therapy, while other treatments show mixed or no benefit.
Area of Science:
- Nephrology
- Radiology
- Pharmacology
Background:
- Radiocontrast media are widely used in diagnostic and therapeutic imaging, with over 10 million U.S. studies annually.
- Radiocontrast exposure can cause acute kidney injury (AKI), specifically radiocontrast-induced nephropathy (RCIN), in at-risk patients.
- RCIN is linked to increased short- and long-term mortality, necessitating risk identification and prevention strategies.
Purpose of the Study:
- To review current evidence on preventing radiocontrast-induced nephropathy (RCIN).
- To evaluate the efficacy of various prophylactic interventions and therapies for RCIN.
- To identify strategies for managing patients at risk of RCIN.
Main Methods:
- Systematic review of existing literature on radiocontrast-induced nephropathy (RCIN) prevention.
- Analysis of clinical studies evaluating prophylactic measures and therapeutic interventions.
- Assessment of evidence for intravenous fluids, N-acetylcysteine (NAC), contrast agent properties, and renal replacement therapies.
Main Results:
- Isotonic intravenous fluids are the only proven preventive therapy for RCIN.
- Low-volume contrast and avoiding nephrotoxic medications are accepted nephroprotective strategies.
- N-acetylcysteine (NAC) and low-osmolar contrast agents have mixed evidence; hemodialysis is not beneficial, but hemofiltration shows potential.
Conclusions:
- Proactive identification of at-risk patients is crucial for preventing RCIN.
- Isotonic fluids, low contrast volume, and avoiding nephrotoxins are key preventive measures.
- Further research is needed to clarify the role of agents like NAC and hemofiltration in RCIN management.
Related Concept Videos
01:30Acute Kidney Injury IV: Diagnostic Studies and Prevention
Accurate diagnosis and effective prevention are critical in managing Acute Kidney Injury (AKI), which is linked to high mortality rates ranging from 10% to 80%. Timely recognition of at-risk patients and careful monitoring can significantly reduce the likelihood of kidney damage.Diagnostic Assessments:The diagnostic process starts with a comprehensive medical history to identify prerenal, intrarenal, and postrenal causes.Prerenal causes, such as dehydration, hypotension, or blood loss, should...
01:19Imaging Studies VII: Vascular Imaging
DefinitionRenal angiography, also known as renal arteriography, is an imaging technique used to obtain a comprehensive view of blood flow and the vascular structure of blood vessels in the kidneys and surrounding areas.PurposeRenal angiography detects blood vessel abnormalities in the kidneys, such as aneurysms, stenosis, thrombosis, vascular tumors, and renal artery stenosis. It evaluates kidney function and guides interventional treatments like angioplasty or stent placement.Pre-Procedure...
01:22Imaging Studies V: Intravenous Urography and Retrograde Pyelography
IntroductionIntravenous Urography (IVU) and Retrograde Pyelography (RP) are important diagnostic imaging techniques used to evaluate the urinary system. These methods help identify structural abnormalities, obstructions, and functional issues in the kidneys, ureters, and bladder. Both procedures use iodine-based contrast media to enhance the visibility of urinary tract structures on X-ray images, though they differ in their methods and indications.1. Intravenous Urography (IVU)Intravenous...
01:30Radiological Investigation I: X-ray and CT
Radiological investigations, including X-rays and computed tomography (CT) scans, are critical for diagnosing and evaluating various medical conditions. These imaging techniques provide valuable insights into the body's internal structures, aiding in the detection of abnormalities, assessment of disease progression, and development of treatment strategies. This article delves into two primary radiological investigations, chest X-rays and CT scans, outlining their purpose, procedures, and the...
01:22Acute Kidney Injury I: Introduction
Introduction:Acute Kidney Injury (AKI) describes a swift decrease in kidney function occurring over hours to days, characterized by the kidneys' failure to remove waste products from the bloodstream. This leads to dangerous complications like metabolic acidosis, fluid overload, and electrolyte imbalances, such as hyperkalemia, which can cause life-threatening arrhythmias. AKI is common in both hospital and outpatient settings, often triggered by dehydration, sepsis, or exposure to nephrotoxic...
01:29Acute Kidney Injury II: Pathophysiology
Acute kidney injury (AKI) causes are categorized into three primary categories based on the location of the injury: prerenal, intrarenal (or intrinsic), and postrenal causes. This classification guides clinical management and illustrates how different pathways can impair kidney function.Etiology and Pathophysiology of Acute Kidney Injury1. Prerenal causesEtiology: Prerenal Acute Kidney Injury, the most common type, occurs when reduced blood flow to the kidneys decreases filtration capacity...