Contrast agents used during cardiac angiography and CT scans are known to sometimes cause kidney damage, but this had been considered a temporary side-effect.
However, a study of patients with kidney disease who underwent cardiac angiography found that contrast-induced kidney damage was associated with increased serious health problems.
Of 294 patients included in the study, 38 experienced events such as MI, stroke, end-stage renal disease or death.
Patients who sustained contrast-induced kidney injuries were twice as likely to suffer serious events as patients who did not sustain kidney damage.
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