Under local anesthesia, a Valsalva maneuver is performed. Fifty ml. of 50 per cent sodium diatrizoate (Hypaque) or methylglucamine diatrizoate (Cardiografin, Gastrografin, Renografin) is then ...
The clinical features mainly involve the cardiovascular system, manifesting as Kounis syndrome, but cutaneous or mucus involvement, and bronchospasm are also presenting features. According to Ring ...