Results:Intracranial hypertension,anoxia,acid-bost disorders and nervivagus intension are chief reasons of sinas bradysphymia which erupts simaltanceously with craniocerebral injuries.

• 结果:颅内压增高、缺氧、水电解质及酸碱失衡、迷失神经张力增高等是颅脑损伤并发窦性缓慢心律的主要原因。