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Related Concept Videos

Acute Kidney Injury IV: Diagnostic Studies and Prevention01:30

Acute 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...
Acute Kidney Injury II: Pathophysiology01:29

Acute 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...
Imaging Studies V: Intravenous Urography and Retrograde Pyelography01:22

Imaging 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...
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Preoperative ManagementThe primary goals of preoperative management in kidney transplantation are to optimize the patient’s metabolic state and prepare them for surgery through diet adjustments, necessary dialysis, and tailored medical treatment. This phase also involves comprehensive infection screening and patient education about the surgical procedure and postoperative care to improve outcomes and adherence.Medical ManagementA comprehensive evaluation is required for both the living donor...
Chronic Kidney Disease I: Introduction01:25

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Cardiac catheterization is an invasive diagnostic technique used to identify and evaluate structural and functional diseases of the heart and major blood vessels. This technique diagnoses congenital heart disease, coronary artery disease, valvular heart disease, and coronary spasms and assesses ventricular function. It helps guide treatment decisions, including the need for revascularization procedures like percutaneous coronary intervention (PCI) or coronary artery bypass grafting (CABG) and...

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Point-of-Care Kidney and Genitourinary Ultrasound in Adults: Image Acquisition
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Published on: June 21, 2024

Contrast induced nephropathy in urology.

Viji Samuel Thomson1, Kumar Narayanan, J Chandra Singh

  • 1Department of Urology, Christian Medical College, Vellore, India.

Indian Journal of Urology : IJU : Journal of the Urological Society of India
|December 4, 2009
PubMed
Summary

Contrast-induced nephropathy (CIN) is a significant risk following urological imaging with contrast agents. While no cure exists, preventive strategies can mitigate kidney damage and improve patient outcomes.

Area of Science:

  • Nephrology
  • Urology
  • Radiology

Background:

  • Intravenous contrast agents are crucial for detailed urological imaging, assessing anatomy, vascularity, and renal function.
  • Contrast-induced nephropathy (CIN) is a recognized adverse effect associated with contrast administration.
  • CIN is a leading cause of hospital-acquired renal failure, necessitating a review of its impact on urological practice.

Purpose of the Study:

  • To review the incidence, pathophysiology, clinical features, and preventive strategies for CIN relevant to urologists.
  • To synthesize current literature and data to inform clinical practice regarding CIN.
  • To propose a working algorithm for CIN prevention based on available evidence.

Main Methods:

  • Comprehensive literature review of PubMed and EMBASE databases.

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  • Keywords included "nephropathy," "contrast media," "prevention," "adverse effects," "kidney diseases," "nephrotoxicity," and "renal failure."
  • Focus on publications and data most relevant to urological applications.

    • Main Results:

    • CIN is the third most common cause of hospital-acquired renal failure, with lower incidence via intravenous compared to intra-arterial administration.
    • Pathogenesis involves toxic tubular injury and medullary ischemia; typically presents as transient, nonoliguric renal dysfunction.
    • Patients with CIN experience increased mortality, prolonged hospitalization, and complex clinical courses.

    Conclusions:

    • CIN poses significant risks, including increased mortality and morbidity, underscoring the need for preventive measures.
    • Risk factors and prediction scores are available for prognostication.
    • Prophylaxis is possible through judicious choice of contrast agents, hydration protocols, and consideration of various therapeutic agents, although no treatment reverses established CIN.