what are light coma, moderate coma and deep coma?

the main classification is arousal disorder, and coma is divided into light coma, moderate coma and deep coma according to its degree.

(1) light coma: the patient shows loss of consciousness, no response to loud sounds, and complete loss of response to the second signal system. however, he can still have a simple response to strong painful stimulation. for example, if the upper edge of the orbit is pressed, the expression of pain and avoidance may appear. reaction, but the corneal reflex, pupillary light reflex, cough reflex, swallowing reflex and ciliary reflex still exist, and vital signs are generally stable.

(2) moderate coma: more severe than shallow coma. the patient showed no response to painful stimulation, and his limbs were completely paralyzed. although the corneal reflex, pupillary light reflex, cough reflex, swallowing reflex, etc. still existed, they were significantly weakened, the key reflex was hyperactive, the pathological reflex was positive, and the respiratory and circulatory functions were generally poor. can.

(3) deep coma: the patient's eyes are fixed, pupils are dilated, corneal reflection, pupillary light reflex, cough reflex and swallowing reflex disappear, limbs are paralyzed, healthy reflexes disappear, pathological reflexes disappear, vital signs are unstable, and the patient is in a state of death .

in addition, in recent years, some scholars have included brain death in the category of coma, calling it excessive coma (brain death). brain death is an irreversible brain damage, which is mainly characterized by loss of whole brain function, termination of cerebral circulation, and nervous system the stability of the body's environment can no longer be maintained.

(warm reminder: medical science sharing. this content does not represent face-to-face consultation. if you feel unwell, please seek medical treatment as soon as possible.)