Diabetes, Heart Rate Variability, Spinal Anesthesia
Conditions
Keywords
Heart Rate Variability, spinal anesthesia, DM, cardiac autonomic dysfunction
Brief summary
Cardiac autonomic neuropathy is a common complication of diabetes and is associated with resting tachycardia. Regional anesthesia could interrupt normal autonomic activity by central sympathetic blockade. The investigators evaluate the relation of severity of diabetes and heart rate variability, also the impact of spinal anesthesia on the change of heart rate variability.
Interventions
None listed
Sponsors
Study design
Eligibility
Inclusion criteria
* patients undergoing lower limb surgery with spinal anesthesia (ASA class 1,2,3)
Exclusion criteria
* severe coagulopathy, short height, arrhythmia patients, patients taken medication which could affect autonomic nervus system (bata- blocker or alpha-blocker)
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Change of Heart rate variability during spinal anesthesia : total power, power of LF and HF, and LF/HF ratio | 10 min before spinal anesthesia (T0: Baseline ) 10 min (T1), 20 min (T2) and 30 min (T3) after spinal injection |
Countries
South Korea