What is the function of the phrenic nerve?
Your phrenic nerve plays a critical role in your respiratory system to aid breathing. It’s the only nerve in your nervous system that provides motor (movement) function to your diaphragm. It sends signals that cause your diaphragm to expand and contract. These movements allow your lungs to inhale and exhale air.
What is the phrenic nerve damage symptoms?
The diagnosis of phrenic nerve injury requires high suspicion due to nonspecific signs and symptoms including unexplained shortness of breath, recurrent pneumonia, anxiety, insomnia, morning headache, excessive daytime somnolence, orthopnea, fatigue, and difficulty weaning from mechanical ventilation.
What causes phrenic nerve pain?
Phrenic Nerve Paralysis may occur during birth, following trauma, or from radiation, tumor, or a virus. Depending on the situation, the nerve can be injured by stretch, rupture, avulsion, or direct damage.
What does phrenic nerve supply?
The phrenic nerve provides the primary motor supply to the diaphragm, the major respiratory muscle. It passes motor information to the diaphragm and receives sensory information from it. There are two phrenic nerves, a left and a right one.
What happens if your phrenic nerve is damaged?
The hiccup reflex can be triggered by phrenic nerve irritation, making the diaphragm contract abnormally, resulting in a small intake of air. The most severe impact of phrenic nerve damage is diaphragm paralysis, which prevents the patient from being able to regulate breathing on his or her own.
How do you test the phrenic nerve?
In addition to the clinical physical examination, diagnostic tests to assess phrenic nerve function include chest X-ray, chest fluoroscopy, pulmonary function tests, phrenic nerve conduction studies, and needle electromyography of the diaphragm.
What doctor treats phrenic nerve damage?
The phrenic nerve is not commonly dealt with, unless it is neck or chest surgery, so thoracic or otolaryngology surgeons will encounter the phrenic nerve—but basically just to try to stay away from it.
Can phrenic nerve be pinched?
Injuries to the phrenic nerve can occur in a variety of ways, including injections of medicine in the neck prior to shoulder surgery or to treat pain, chiropractic adjustments of the neck, or neck, chest or vascular surgery. In addition, scar tissue can form in the neck and compress the nerve.