Toxicity of gadolinium by contrast in imaging tests
Keywords:Gadolinium; Contrast media; Nuclear Magnetic Resonance; Nephrogenic systemic fibrosis.
Objective: the purpose of this article is to describe the properties and utilities of Gadolinium (Gd), emphasizing its toxicity as a means of contrast in Nuclear Magnetic Resonance (NMR) exams. This research is based on describing the main adverse reactions, indications, contraindications and toxicity by the use of GBCAs, a drug commonly used as a non-ionizing contrast. Methodology: a literature review was carried out, where information was acquired in scientific articles from renowned sites such as Scientific Eletronic Library Online (SciELO) and US national Library of Medicine (PubMed). Results: Gd is a metal used in various ways for various purposes, and one of them is in NMR exams as a means of contrast. However, it can provide health risks for patients who have previous diseases, such as chronic kidneys, or those who have sensitivities or allergies, and can cause major or minor acute reactions, ranging from hives, headaches and vomiting, to anaphylactic shock and laryngospasm. However, one of the complications that have been studied with amplitude is the pathology called Nephrogenic Systemic Fibrosis (NSF). There are recently studies in which risks have been reported even in patients with renal functions within normality. Conclusion of the study: clarification of the guidelines and important information for the patient who performs the contrasted NMR exam, and also, leave as a warning to health professionals on a topic not much addressed, but of high dangerousness.
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