Cardiovascular autonomic neuropathy in diabetic patients, hypertension, sympathovagal imbalance, orthostatic hypotension, painless myocardial infarction, ischemia, left ventricular dysfunction, cardiac sympathetic and parasympathetic innervation disturbances, qt interval prolongation and sudden deaths observed. The purpose of this study is to evaluate the relationship between cardiovascular autonomic neuropathy and perfusion index in spinal anesthesia

Cardiovascular autonomic neuropathy in diabetic patients, hypertension, sympathovagal imbalance, orthostatic hypotension, painless myocardial infarction, ischemia, left ventricular dysfunction, cardiac sympathetic and parasympathetic innervation disturbances, qt interval prolongation and sudden deaths observed. The purpose of this study is to evaluate the relationship between cardiovascular autonomic neuropathy and perfusion index in spinal anesthesia

Inclusion Criteria:

• the patient will be operated with spinal anesthesia
• over 18 years
• no additional disease and only DM

Exclusion Criteria:

• patients with additional disease
• patients under 18 years of age
• patients contraindicated in spinal anesthesia

patients over 18 years old