Wednesday, 7 December 2011
Poster Hall (Cancún Center)
Maricruz Calva, MD
,
Regional Centre of Allergy and Clinical Immunology, University Hospital, Monterrey, Mexico
Sandra González-Díaz, MD, PhD
,
Regional Centre of Allergy and Clinical Immunology, University Hospital, Monterrey, Mexico
Alfredo Arias-Cruz, MD
,
Allergy and Clinical Immunology, University Hospital UANL, Monterrey, Mexico
Alejandra Macías-Weinmann
,
Regional Centre of Allergy and Clinical Immunology, University Hospital, Monterrey, Mexico
Lucía Leal, MD, PhD
,
Regional Centre of Allergy and Clinical Immunology, University Hospital, Monterrey, Mexico, Monterrey, Mexico
Arya González, MD
,
Regional Center of Allergy and Clinical Immunology, University Hospital, Monterrey, Mexico
Claudia Gallego, MD
,
Regional Center of Allergy and Clinical Immunology, University Hospital, Monterrey, Mexico
Diego Garcia-Calderin, MD
,
Regional Centre of Allergy and Clinical Immunology, University Hospital, Monterrey, Mexico
Karla Mejia, MD
,
Regional Centre of Allergy and Clinical Immunology, University Hospital, Monterrey, Mexico
Luis Dominguez, MD
,
Regional Centre of Allergy and Clinical Immunology, University Hospital, Monterrey, Mexico
Background: The risk of anaphylaxis ranges from 0.2% to 0.7%. The objective of this study was to describe the causes, clinical features and complications of patients with anaphylaxis treated in the emergency department of our hospital.
Materials and Methods : A prospective, observational and descriptive survey was conducted for assessing adult patients with diagnosis of anaphylaxis from March 2005-2010. Information was obtained from the medical records and from a questionnaire was that completed for the patients and a relative. The information included, triggers, demographics, allergy history and clinical characteristics of the current episode. All the cases were followed to their outcome.
Results: We documented 45 cases of anaphylaxis. 26 patients (58%) were male.The most common causes of anaphylaxis were: drug (49%) food (20%) and poison hymenoptera venom (16%). The most common clinical signs ando symptoms included: dyspnea (69%), nausea (58%) and hypotension (56%). 44% of patients came to emergency departments in the course of 30 minutes after onset of symptoms while the 29% took 30 minutes to 1 hour and 27% more than 1 hour. Among the associated diseases, hypertension 13% and rhinitis (11%). In 85% of the cases, patients remained under observation for 3-12 hours were the most frecuent discharged. 7 patients were hospitalized, and 4 step to intensive care and were discharged without complications.
Conclusions: Anaphylaxis is not uncommon in our environment. drugs are the most common cause as reported in the literature. The most frequent clinical manifestations are respiratory and gastrointestinal followed.
