Vicarious contrast excretion by the gallbladder in contrast nephropathy

Vicarious urinary excretion of iodinated contrast in a Crohn's patient.

Vicarious renal excretion of iodinated contrast introduced into the bowel is a known phenomenon that has rarely been reported. In clinical settings like Crohn's disease in which evaluation for recto-vesical fistula is frequently requested, vicarious excretion can cause misapprehension and error in diagnosis. We present a case of Crohn's disease in which gastrografin enema was performed to evalu...

Contrast-Induced Nephropathy Following CT Scan and Its Associated Factors

Background and purpose: Contrast-induced nephropathy (CIN) as a common complication of administration of contrast media (CM) is a major source of hospital morbidity and mortality. The aim of this study was to determine the incidence of CIN after contrast-enhanced CT scan and identifying the related risk factors. Materials and methods: A cross-sectional study was carried out in 100 patients att...

Contrast safety in the cancer patient: preventing contrast-induced nephropathy

Cancer patients undergo frequent imaging examinations. Computed tomography (CT) examinations for tumor staging and assessment of treatment response generally require administration of intravascular contrast medium. Iodinated contrast agents for CT are associated with the risk of contrast-induced nephrotoxicity (CIN), particularly in patients with impaired renal function and diabetes. In many ca...

Contrast-induced nephropathy.

Contrast-induced nephropathy is defined as a serum creatinine level that increases by at least 25% or is 44.2 μmol/L greater than baseline within three days of receiving contrast medium intravascularly in the ab sence of another cause. Contrastinduced nephropathy is usually selflimiting; at worst, it can make the patient permanently dependent on hemodialysis or can result in death. Main risk fa...

Contrast-Induced Nephropathy