What are the clinical manifestations of superior laryngeal nerve injury?
Dec 20, 2023
Source: Cainiu Health
Dr. Lu Cheng
Introduction
Clinical manifestations of superior laryngeal nerve injury typically include hoarseness, frequent throat clearing, coughing or choking when drinking water, dysphagia, and breathing difficulties. If related symptoms occur, prompt medical attention is recommended. After superior laryngeal nerve injury, it is important to keep the larynx moist and avoid irritants such as smoking and alcohol consumption, which may help alleviate symptoms.
The clinical manifestations of superior laryngeal nerve injury generally include hoarseness, frequent throat clearing, coughing or choking when drinking water, dysphagia, and breathing difficulties. If any of these symptoms occur, it is recommended to seek medical attention promptly. Specific details are as follows:
1. Hoarseness
This is a common symptom of superior laryngeal nerve injury. Nerve damage affects vocal cord function, causing the voice to become hoarse or even lost. Maintaining adequate hydration helps keep the vocal cords moist and reduces discomfort during phonation. It is recommended to drink sufficient water daily and avoid excessively dry environments.
2. Frequent throat clearing
Due to impaired sensory and motor functions in the larynx, patients often unconsciously clear their throats in an attempt to relieve discomfort. Using a humidifier, especially during dry seasons or in arid environments, can help maintain air moisture and reduce throat irritation.
3. Coughing or choking when drinking water
Superior laryngeal nerve injury may impair normal laryngeal function, leading to coughing or choking while drinking. In severe cases, this may even result in aspiration pneumonia. Patients can reduce the risk by adjusting their drinking posture—sitting upright with the head slightly forward-leaning.
4. Dysphagia (difficulty swallowing)
Superior laryngeal nerve injury may impair swallowing function, making it difficult for patients to swallow food or liquids. Swallowing exercises and technique training can help patients learn how to chew, swallow, and control breathing properly, thereby improving safety and comfort during meals.
5. Breathing difficulties
If the injury severely compromises airway function, patients may experience breathing difficulties. Special body positions or the use of assisted breathing devices may be required to maintain adequate respiration.
After superior laryngeal nerve injury, it is important to keep the larynx moist and avoid irritants such as smoking and alcohol consumption, which can help alleviate symptoms. Additionally, excessive use of the larynx should be avoided to allow sufficient rest and recovery time.
