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The results of a 9 question survey about gadolinium exposure and related symptoms in patients with normal renal function were reported in an article by Burke et al titled Self-reported gadolinium toxicity: A survey of patients with chronic symptoms. The survey provides the initial description in the medical literature of patients with normal renal function who self-described toxicity related to administration of gadolinium-based contrast agents (GBCAs). There were 50 respondents to the anonymous online survey. All 50 respondents (100%) received gadolinium-based contrast with an average of 4.2 doses. All 50 attribute their symptoms to gadolinium exposure.
Thirty-three (66%) subjects described the onset of symptoms immediately following GBCA administration and 16 (32%) within 6 weeks. The most common symptoms included bone/joint pain and head/neck symptoms including headache, vision change, and hearing change. Headache and bone/joint pain was described by more than 75% of the cases. Skin changes were seen in approximately 60% of respondents.
Other symptoms reported include: flu-like symptoms (30.6%); digestive symptoms described as nausea, vomiting, diarrhea (46.9%); chest symptoms described as difficulty breathing (42.9%); generalized whole body symptoms (30.6%); and other (75.5%).
The findings of the survey showed that subjects with normal renal function might develop disease following administration of the majority of GBCAs including macrocyclic agents.
Despite the limitations of the survey, the authors said that it was their opinion “that there most likely is toxicity associated with GBCA administration in patients with normal renal function”. They concluded that, “at the very least, this study highlights the need to further investigate the subject of patients with normal renal function who complain of severe long-lasting symptomatology following GBCA administration”.
My thoughts –
When Hubbs Grimm and I released the findings of the online symptom survey that we conducted in early 2014, we noted that the results presented in our paper should stimulate further professional investigation into gadolinium retention in all patient populations including those with normal renal function. It is good to see that the medical community is now looking into the issue of gadolinium retention in patients with normal renal function further.
Our paper, Gadolinium Toxicity – A Survey of the Chronic Effects of Retained Gadolinium from Contrast MRIs can be found in the Research section of our website.
Burke, L. M. B., Ramalho, M., AlObaidy, M., Chang, E., Jay, M., & Semelka, R. C. (2016). Self-Reported Gadolinium Toxicity: A Survey of Patients with Chronic Symptoms. Magnetic Resonance Imaging. http://doi.org/10.1016/j.mri.2016.05.005