复旦大学：《耳鼻咽喉科学》课程教学资源（PPT课件讲稿，英文版）diseases of the larynx

Injuries of the larynx Injury to the larynx is uncommon The inferior projection of the mandible affords significant protection from anterior blows Posteriorly the larynx is protected by the rigid cervical spine

Injuries of the larynx ◼ Injury to the larynx is uncommon. ◼ The inferior projection of the mandible affords significant protection from anterior blows. ◼ Posteriorly, the larynx is protected by the rigid cervical spine

Injuries of the larynx Within the neck there are some elements necessary to connect and coordinate the head with the body Injury to the neck can disrupt any of these vital functions and may involve bony, soft tissue, vascular and cns elements

Injuries of the larynx ◼ Within the neck there are some elements necessary to connect and coordinate the head with the body. ◼ Injury to the neck can disrupt any of these vital functions and may involve bony, soft tissue, vascular, and CNS elements

Injuries of the larynx Although many associated injuries may appear more impressive, correct management of the neck injury with immediate attention to securing the airways is always the first priority

Injuries of the larynx ◼ Although many associated injuries may appear more impressive, correct management of the neck injury with immediate attention to securing the airways is always the first priority

Injuries of the larynx Classification 1. External laryngeal trauma closed injury -contusion, crush injury open injury -incised wound, stab wound, burst wound, bullet trauma 2. Internal laryngeal injury burn of the larynx, intubation

Injuries of the larynx ◼ Classification ⒈ External laryngeal trauma： closed injury —contusion, crush injury open injury —incised wound, stab wound, burst wound，bullet trauma. ⒉ Internal laryngeal injury： burn of the larynx, intubation

Injuries of the larynx Closed injuries of the larynx Causes a direct attack industrial accident traffic accident

Injuries of the larynx ◼ Closed injuries of the larynx ◼ Causes： ◼ direct attack ◼ industrial accident ◼ traffic accident

Injuries of the larynx Anterior blunt injuries are most commonly the result of motor vehicle accidents

Injuries of the larynx ◼ Anterior blunt injuries are most commonly the result of motor vehicle accidents

Injuries of the larynx 1. Mandatory seat belt laws 2. lower speed limits 3. better education regarding drunk driving 4. the use front seat air bags may reduce this accident

Injuries of the larynx 1. Mandatory seat belt laws 2. lower speed limits 3. better education regarding drunk driving 4. the use front seat air bags may reduce this accident !

Injuries of the larynx Clothesline injuries occur when the rider of a motorcycle encounters a fixed horizontal object such as a clothesline This type of injury imparts a large amount of energy over a relatively small area, resulting in massive trauma

Injuries of the larynx ◼ Clothesline injuries occur when the rider of a motorcycle encounters a fixed horizontal object, such as a clothesline. ◼ This type of injury imparts a large amount of energy over a relatively small area, resulting in massive trauma

Injuries of the larynx a strangulation injuries occur from manual compression or from attempted suicides by hanging These injures may later be associated with marked edema of the larynx and resultant loss of airway

Injuries of the larynx ◼ Strangulation injuries occur from manual compression or from attempted suicides by hanging. ◼ These injures may later be associated with marked edema of the larynx and resultant loss of airway

Injuries of the larynx Closed injuries of the larynx Symptoms: dyspnea, dysphagia, sore throat, tenderness of the larynx, hoarseness, hemoptysis and shock

Injuries of the larynx ◼ Closed injuries of the larynx ◼ Symptoms： ◼ dyspnea, dysphagia, sore throat, tenderness of the larynx, hoarseness, hemoptysis and shock