Otolaryngologie : accès libre

Abstrait

Vascular Anatomy of Little's Area in Children with Epistaxis

Benedikt J Folz *,Martin Harlfinger ,Jochen A Werner

Epistaxis in children in more than 90% of the cases from the anterior nasal cavity. In the majority of the paediatric population Epistaxis is due to trauma (accidents, manipulation, secondary hemorrhages after surgery), bleeding disorders (v.-Willebrand´s disease, side-effects of medication), dry climate (low humidity, heating period), rhinitis, vascular abnormities and rarely it is due to hereditary syndromes. In contrast to Epistaxis in adults, blood pressure changes play no essential role in paediatric nosebleeds. The present publication analyses the vascular anatomy of the anterior nasal septum (Little´s area) based on video endoscopic findings in affected children. Video endoscopies of 16 children could be analysed for the study. Twelve of 16 children had a prominent vessel shining through the mucosa at the anterior or lower edge of the nasal septum and teleangiectic vessels appeared in 4/16 cases. The endoscopic examinations showed that the dominant vessels for the anterior septum were emerging from the floor of the nose, making a 90° cranial direction turn towards Little’s area. In contrast to most descriptions in literature, anastomoses with vessels coming from the cranial parts of the nose, deriving from the anterior ethmoidal artery, could not be found. According to the findings of the present analysis, Little’s area therefore is predominantely supplied by the septal branch of the superior labial artery and inferior septal branches of the sphenopalatine artery. Results in Epistaxis therapy might be improved, if the respective terminal branches of these vessels can be obliterated succesfully.