JOURNAL ARTICLE

The blood supply of the inferior nasal concha (turbinate): a cadaveric anatomical study

Asaad Abd Al-Hussain Mohammad Al-Shouk, İlkan Tatar
Anatomical Science International 2020 June 8
32514849
The blood supply of the lateral nasal wall acquires a great deal of interest for many reasons especially for the treatment of clinical conditions such as epistaxis that sometimes needs surgical interventions and endoscopic sinus and skull base surgeries that requires a good choice of endonasal flaps including inferior nasal concha (commonly named as inferior turbinate by clinicians) flap to close the dural defects. Successful treatment of epistaxis and closure of such defects depends on detailed anatomical knowledge of lateral nasal wall vasculature and a vital flap with good blood supply, respectively. Because of these we aimed to study the blood supply of inferior turbinate, regarding the sources and courses of the blood vessels. Forty formalin-fixed hemisected cadaveric heads were used at Hacettepe University Anatomy Dissection Laboratory. Anatomical dissection of the inferior nasal concha and the lateral nasal wall was done by dissecting microscope. Coloring dye injection to the arteries was performed. After a detailed examination of the lateral nasal wall; the position of the sphenopalatine foramen (SPF) and the sphenopalatine artery (SPA) were identified. The posterior lateral nasal artery (PLNA) found to give middle and inferior conchal (turbinate) arteries. The average length of the inferior turbinate artery (ITA) was 9.057 ± 1.674 mm, the diameter was 1.452 ± 0.172 mm, the distance from posterior end of inferior turbinate was 7.879 ± 1.52 mm. Anastomosis in the lateral nasal wall between the ITA and the anterior ethmoidal and the lateral nasal (branch of the facial artery) arteries were established. The blood supply of inferior nasal concha is mainly provided by ITA and its anastomotic contributors. Detailed knowledge related to it, before surgical interventions, may reduce intraoperative bleeding and increase endoscopic exposure.

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