Brain Conditions Traumatic Traumatic Brain Injury Intracranial Hypertension Cerebral Salt Wasting Syndrome Vascular Stroke - General Cerebral Haemorrhage Cerebral Infarction Transient Ischaemic Attack Subarachnoid Haemorrhage Cerebral Venous Sinus Thrombosis Cerebral Vasospasm Pituitary Apoplexy Neuronal Cerebral Oedema Seizures Pituitary Disease Infectious Bacterial Meningitis Brain Abscess Encephalopathy Delirium Encephalopathy Encephailitis Posterior Reversible Encephalopathy Syndrome Post Operative Cognitive Dysfunction Consciousness Vegetative State Consciousness Conditions Delayed Recovery of Consciousness post General Anaesthesia Endocrine Diabetes Insipidus Hypopituitarism Iatrogenic Intraoperative Awareness Post-Dural Puncture Headache Miscellaneous Movement Disorders Brain-Lung Crosstalk