Contrast Medium Extravasation Injury: Guidelines for Prevention and Management.
COMPOSITE MR CONTRAST MANUAL
Contrast Media Extravasation: Manual Versus Power Injector. Sinan T, Al-Khawari H, Chishti F, Al Saeed O, Sheikh M. Large volumes (>50 mL) of high-osmolar contrast media are known to induce significant tissue damage although this is rare 6: A large study found that >97% of patients with contrast extravasation had minimal or no injury and reported that 79% of patients had localized swelling after extravasation, 24% had pain, and 8% were asymptomatic 4. Most contrast media extravasation results in minimal swelling or erythema and is not associated with any long-term sequelae 2.
COMPOSITE MR CONTRAST SKIN
blistering, ulceration, induration or other skin changes.instruct the patient to notify staff if there is:.it is suggested to follow up the patient in the next few days until the resolution of local edema this can be accomplished with a phone call to evaluate the regression of the signs and symptoms.make contact with the doctor requesting the examination.at some institutions, the policy is to require plastic surgery consultation for all patients whose extravasations involve 100 mL or more of contrast medium.keep the patient under observation for at least two hours.apply an ice pack to the affected area and elevate the affected extremity to reduce swelling.attempted aspiration of the extravasation has not been shown to be effective.
COMPOSITE MR CONTRAST SERIES
complete the acquisition of images of the CT series.discontinue the contrast infusion and notify the radiologist immediately.The conduct after an episode of contrast media extravasation will vary according to the protocol of each radiology department, and might include: Non-ionic low-osmolar contrast media are known to reduce the risk of severe soft tissue injury, but the potential for soft tissue injury is often related to the volume of contrast media that extravasates 1. Patients complain of local symptoms at, and close to, the site of injection: at MRI, contrast media extravasation is more likely in patients 3:Ĭontrast media extravasation is usually recognized at the time it happens.patients undergoing CT are at higher risk of developing CMEV than MRI patients 3.prewarming of high-osmolar (370 mg/mL) contrast to 37☌ lowers the viscosity and has been proven to lower the probability of extravasation 5.the gauge of intravenous catheter: only if smaller caliber access (over 22G) is used risk of leakage is the same for 18G and 20G 1.likely related to a smaller amount of subcutaneous tissue and the fact that veins are more fragile in these regions.