Please use this identifier to cite or link to this item:
Type: Artigo de periódico
Title: [acute Exposure To Imidazoline Derivatives In Children].
Author: Bucaretchi, Fábio
Dragosavac, Sanja
Vieira, Ronan J
Abstract: To study acute exposure to imidazoline derivatives in 72 children younger than 15 years of age, followed-up from January 1994 to December 1999. This is a retrospective study of 72 patients with age between 2 months and 13 years (median 2 years; 25-75% = 1 to 3 years old) exposed to naphazoline (N = 48), fenoxazoline (N = 18), oxymetazoline (N = 5) and tetrahydrozoline (N = 1), through oral (N = 46), nasal (N = 24) or unknown (N = 2) routes. Fifty-seven children developed clinical manifestations such as somnolence (N = 34/57), sweating (N = 20/57), pallor (N = 17/57), hypothermia (N = 16/57), bradycardia (N = 13/57), cool extremities (N = 9/57), restlessness (N = 7/57), tachycardia (N = 6/57), vomiting (N = 5/57), irregular respiratory pattern and apnea (N = 5/57), miosis/mydriasis (N = 4/57). Naphazoline was the active ingredient most frequently involved (N = 47), followed by fenoxazoline (N = 5) and oxymetazoline (N = 4). The onset of clinical manifestations was rapid, beginning within 2 hours after exposure in 32/57 children. Only supportive measures were employed, with one child requiring mechanical ventilation after accidental naphazoline ingestion. In most of the children resolution of symptoms occurred within 24 hours (N = 39/57). No deaths were observed. Patients exposed to naphazoline (N = 47/48) presented a higher frequency of clinical signs of poisoning in comparison with those exposed to fenoxazoline (N = 5/18) (p < 0.001). There were no significant differences in the frequency of patients who presented clinical manifestations considering the route of exposure [oral (N = 34/46), nasal (N = 21/24); p = 0.31]. Most children (especially those younger than 3 years) exposed to imidazoline derivatives (especially naphazoline) presented early signs of poisoning regardless of the exposure route (nasal or oral). The main signs observed were nervous system, cardiovascular and respiratory depression. Most children showed complete resolution of the symptoms within 24 hours.
Subject: Cardiovascular Diseases
Cardiovascular System
Child, Preschool
Nasal Decongestants
Nervous System Diseases
Retrospective Studies
Citation: Jornal De Pediatria. v. 79, n. 6, p. 519-24
Rights: aberto
Appears in Collections:Unicamp - Artigos e Outros Documentos

Files in This Item:
File SizeFormat 
pmed_14685449.pdf47.63 kBAdobe PDFView/Open

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.