Lower thoracic epidural anesthesia
Conditions
Interventions
Sponsors
Eligibility
Inclusion criteria
Inclusion criteria: 1. Aged >=65 years nonpregnant patients; 2. ASA I-III; 3. Patients were scheduled to undergo abdominal surgery; 4. BMI<35kg/m2; 5. Patients were presented for general anethesia combined with lower thoracic epidural anesthesia (T9-T10 or T10-T11 level); 6. Abdominal CT examination was done before operation; 7. No anticoagulation therapy in postoperative period; 8. Obtained written informed consent.
Exclusion criteria
Exclusion criteria: 1. Contraindicate to central neuraxial block; 2. Unable to follow instructions of anesthesiologists(eg.unconsciousness or insanity); 3. History of spine surgery or obvious abnormality in thoracic spine; 4. Having an allergy to ultrasound gel or local anethetics; 5. Postoperative anticoagulation therapy was performed; 6. Refuse to participate in this study.
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| First attempt success rate; | — |
Secondary
| Measure | Time frame |
|---|---|
| Number of needle insertion attempts;Number of needle redirection attempts;CT-estimated needle insertion depth;CT-estimated needle insertion angle;Time taken to identify insertion point;The needle insertion time;Epidural puncture failure; | — |
Countries
China
Contacts
Department of Anesthesiology, Peking University Third Hospital