The aim of our study is to prevent unnecessary intensive care unit hospitalizations by developing a scoring system to detect low-risk patients after elective intracranial neurosurgery operation.

In this study, the data of patients who are planned to undergo craniotomy by neurosurgery will be collected as a file scan (medical histories, drugs used, demographic features, additional diseases, ASA class, pre-operative routine parameters, operation history, GCS, tumor histology, location, dimensions and intracerebral radiological data, laboratory values). The pre-operative Quality of Recovery-15 (QoR-15) score will be recorded before the patient is taken into operation. Intraoperative; hemodynamic data of patients; highest and lowest values of heart rate, diastolic, systolic and mean arterial pressures, fluid and blood products given, anesthetic and other drugs administered, duration of anesthesia, duration of surgery, surgical position, blood loss, urine output and blood gas samples will be written from the anesthesia document after the operation is over. For the study, the application of the anesthesiologist for the patient will not be interfered. After the operation; extubation time, MAS score, use of mechanical ventilation, post-operative complications (moderate to severe intracerebral hemorrhage on brain CT, intracranial hypertension requiring post op surgical drainage, development of status epilepticus or seizures, the need for tracheal intubation and mechanical ventilation after surgery, decrease in GKS, unmanageable agitation that requires restriction or sedation, need for respiratory failure and oxygen therapy, serious motor deficit and exitus) will be recorded in the service where the patient is sent. The post-operative QoR-15 score will be calculated 24 hours after the operation. Pre-operative and post-operative calculated scores of the patient will be evaluated and anesthesia recovery score will be created. With this recovery score, post-operative mortality and morbidity estimates will be made. The length of hospital stay of the patient will be recorded. Glasgow Result Scale (GOS) score will be determined 30 days after the patient operation. In this way, 1 month morbidity and mortality of the patient will be evaluated. The collected results will be statistically associated with anesthesia recovery and operation complications.

As a result, in our study; post-operative risk prediction score will be created in patients undergoing intracranial surgery with elective craniotomy.

Inclusion Criteria:

1. To undergo intracranial operation with elective craniotomy
2. No history of congestive heart failure
3. No kidney and liver dysfunction
4. Not pregnant
5. To be over 18 years old

Exclusion Criteria:

1. To undergo an intracranial operation with emergency craniotomy
2. Patients with a history of congestive heart failure
3. Patients with kidney and liver dysfunction
4. Pregnant patients
5. Patients under 18 years old

It is planned to include intracranial operations performed by craniotomy in a 2-year period by Trakya University Faculty of Medicine, Department of Neurosurgery.