Surgical procedures and anesthesia applications are situations in which people do not feel safe due to the current vital risks. Anxiety is a natural reaction that occurs in such situations, it manifests itself with worry and fear. Increased anxiety before surgery is associated with pathophysiological responses such as hypertension and dysrhythmia. Intense preoperative anxiety can increase morbidity, the need for anesthetic medication, and postoperative analgesia.

For this reason, many questionnaire studies have been conducted to measure the degree of preoperative anxiety and to reveal its causes. The Amsterdam Preoperative Anxiety and Information Scale (APAIS) test has two parts that measure anxiety and the need for information about anesthesia and surgery. The APAIS-A (anxiety) part is the test that measures strain and shows whether the patient has anxiety about anesthesia or surgery. The APAIS-I (information) part estimates whether the person needs information.

In the literature, the effects of general and spinal anesthesia techniques on preoperative anxiety levels have been compared for some specific surgical methods such as c-sections and perianal region surgeries. However, no study has been reported between peripheral nerve block and general anesthesia techniques.

This study aimed to determine the effects of regional and general anesthesia methods on preoperative anxiety levels and the factors affecting these scores in patients who will undergo upper extremity surgery.

146 patients (ASA I-II-III) aged 18-75 years who were to undergo orthopedic upper extremity surgery were randomized and divided into two groups. 26 patients were dropout for different reasons (60 patients in each of the BPB block and general anesthesia groups). One of the brachial plexus blocks was performed according to the level to be operated on to the BPB group, and general anesthesia was performed on the GA group.

Preoperative anxiety of the patients was measured using the APAIS test. The patients' preoperative anxiety score was the primary outcome measure. Postoperative numerical rating scale values were a secondary outcome measure.

Inclusion Criteria:

• Ages of 18-75
• ASA I-III
• Patients who will undergo orthopedic upper extremity surgery

Exclusion Criteria:

• Clinically known local anesthetic allergy
• Morbid obesity (body mass index> 35 kg m2)
• Clinically diagnosis of opioid, alcohol and substance dependence
• Clinically diagnosis of psychiatric disease
• Coagulopathy
• Patients with ASA IV-V
• Illiterate patients

Data available from the publication date can start. Anxiety and NRS scores will be shared. If requested, data will be shared with anesthesiologists dealing with preoperative anxiety.