Hypotensive shock associated with bradycardia after intravenous injection of contrast medium

A case of hypotensive shock associated with bradycardia that occurred after injection of nonionic monomeric contrast medium is described. Whether the pathogenesis of this type of reaction is solely vasovagal or is directly caused by the contrast medium is not known. The number of occurrences after administration of nonionic monomeric versus conventional contrast agents should be compared to solve this problem.