Role of food labels in accidental exposures in food-allergic individuals in Canada.

Background: Little is known about the impact of food labeling on the allergic consumer.

Objective: To determine the proportion of food-allergic individuals attributing an accidental exposure to inappropriate labeling, failure to read a food label, or ignoring a precautionary statement and to identify factors associated with accidental exposures.

Methods: Food-allergic individuals or their caregivers were recruited from a Canadian registry of individuals with a physician-confirmed diagnosis of peanut allergy and from allergy awareness organizations.

Use of methylene blue for catecholamine-refractory vasoplegia from protamine and aprotinin.

We present two cases of catecholamine-refractory and vasopressin-refractory vasoplegic syndrome associated with intraoperative anaphylaxis during cardiac surgery. One case was related to the administration of protamine and the other case to the administration of aprotinin. Both cases were successfully managed using intravenous methylene blue.