How do you Spgate the sphenopalatine artery?
An incision is made just posterior to the posterior attachment of the middle turbinate. The mucosal flap is then carefully elevated to reveal the sphenopalatine artery, which is then clipped and ligated.
How do you insert nasal Pledgets?
Placement of pledgets in the nasal cavity. Insert swabs either anterior-superiorly (for blockage of the ethmoidal nerves) or posteriorly along the medial meatus (for blockage of the sphenopalatine nerve). Anesthesia is typically obtained in 5 minutes. If not, the pledgets or swabs can be replaced with new ones.
How do you find the sphenopalatine artery?
The location of the sphenopalatine foramen (SPF) is identified within the superior meatus after elevation of a mucoperiosteal flap and identification of the crista ethmoidalis from the posterior aspect of the middle meatus. Opening the maxillary sinus may assist the surgeon if these landmarks are not quickly found.
Which artery is ligation in epistaxis?
Ligation of the external carotid artery for severe epistaxis.
What is the sphenopalatine artery?
The sphenopalatine artery is a terminal branch of the internal maxillary artery originating from the external carotid artery system. [4] The SPA is the major blood vessel to the nasal cavity mucosa: supplying the superior, middle, and inferior turbinate; lateral nasal wall; and nasal septum.
Why is sphenopalatine artery called artery of epistaxis?
The sphenopalatine artery is the artery responsible for the most serious, posterior nosebleeds (also known as epistaxis). It can be ligated surgically or blocked under image guidance with minimally invasive techniques by interventional radiologist using tiny microparticles to control such nosebleeds.
Can you use epinephrine on nose?
Local anesthesia with epinephrine supplementation is therefore safe for acral areas such as the ear or nose. Despite the relatively small influence on blood perfusion, epinephrine supplementation results in a relatively bloodless operating field and longer effectiveness of local anesthesia.
Which nerve Innervates tip of nose?
External nasal nerve
The external nasal nerve is a terminal branch of the anterior ethmoidal nerve….
| External nasal nerve | |
|---|---|
| From | anterior ethmoidal nerve |
| Innervates | external skin of nose to the tip |
| Identifiers | |
| Latin | Rami nasales externi nervi infraorbitalis |
What is the sphenopalatine foramen?
The sphenopalatine foramen (SPF) represents an opening on the lateral nasal wall that is present at the articulation between the superior aspect of the vertical portion of the palatine bone and the inferior projection of the sphenoid bone.
What is the Little’s area?
Little’s Area. Little’s area (also known as Kiesselbach’s plexus) is found on the anterior nasal septum (Fig. 1) and is an anastomosis of 5 arteries: anterior ethmoidal artery, posterior ethmoidal artery, sphenopalatine artery, greater palatine artery, and the septal branch of the superior labial artery.
Where is Little’s area?
anterior nasal septum
Little’s Area. Little’s area (also known as Kiesselbach’s plexus) is found on the anterior nasal septum (Fig. 1) and is an anastomosis of 5 arteries: anterior ethmoidal artery, posterior ethmoidal artery, sphenopalatine artery, greater palatine artery, and the septal branch of the superior labial artery.
What is sphenopalatine artery?
The sphenopalatine artery is a terminal branch of the internal maxillary artery originating from the external carotid artery system. The sphenopalatine artery travels within the pterygopalatine fossa and enters the nasal cavity through the sphenopalatine foramen within the posterior portion of the superior meatus.