Tears in coma with subarachnoid hemorrhage are not necessarily normal, depending on the cause of the tears. Common causes include spontaneous tears in patients with shallow coma, increased tear secretion in the lacrimal glands due to parasympathetic excitation caused by brain injury, and bulbar conjunctival edema caused by elevated intracranial pressure. If it is caused by shallow coma, it is a normal phenomenon, and brain injury and increased intracranial pressure are abnormal phenomena.
1. Shallow coma: if the patient is in a shallow coma and the emotional center is not affected, when the external stimulus causes emotional changes, it may lead to voluntary tearing, which is a normal phenomenon and does not need special treatment.
2. Brain injury leads to parasympathetic excitation, secondary to increased secretion of the lacrimal gland, causing tears is an abnormal phenomenon, need to be used under the guidance of a physician to nourish brain cells, improve brain function drugs, such as cytarabine, adverse reactions to shock, allergic rash and liver function abnormalities, is prohibited in the person who is allergic to the drug.
3. Increased intracranial pressure can lead to bulbar conjunctival edema, reflex lacrimal secretion increases, also belongs to the abnormal phenomenon, need to be used under the guidance of a physician to reduce cranial pressure drugs such as mannitol, adverse reactions for electrolyte disorders, renal function abnormalities, prohibited in patients with severe renal insufficiency.
Subarachnoid hemorrhage coma patients with tears is not necessarily a normal phenomenon, need to assess the specific causes, symptomatic treatment, it is recommended that patients with discomfort should consult a doctor in a timely manner, after evaluation by a professional physician standardized treatment.