Stellate Ganglion Block on Postoperative Sleep Status in Patients With Prolonged Disorders of Consciousness

Exclusion Criteria

• •Continuous sedation therapy is performed within 72 hours prior to the study;
• •The integrity of brain structure is disrupted due to causes such as open head injury and cerebral parenchymal resection;
• •Decreased intracranial compliance caused by hydrocephalus and other reasons;
• •Airway stenosis or severe dysfunction of ventilation or gas exchange due to various causes;
• •Known or suspected severe cardiac, pulmonary, and renal dysfunction;
• •History of sedative drug allergy;
• •Complicated by other mental or neurological disorders;
• •Local anesthetic allergy;
• •Other reasons for ineligibility in this study;
• •Informed consent is not obtained;