Anaphylactoid reactions associated with the clinical use of dextran 70

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Abstract
Two of 4 new cases of anaphylactoid reactions associated with the use of dextran 70 occurred in a consecutive series of 84 hemodynamically stable patients, an incidence of 2.4%. These reactions developed immediately after intravenous infusion of small amounts of dextran 70. The reactions were characterized by generalized subjective discomforts rapidly followed by severe gastrointestinal disturbances and hypotension. The true nature of these reactions and the role and source of prior sensitization is unknown. The infusion of dextran 70 may provoke life-threatening reactions, especially in unconscious patients and in those with preexisting hypotension or intraabdominal pathological conditions.

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