the Relationship Between Vertebral Body Length, Subarachnoid Space Width and Block Level

• Conditions: Combined Spinal Epidurai Anesthesia; Lower Extremity Surgery
• Interventions: Device: ltrasonic measure

• Registration Number: NCT05201261
• Lead Sponsor: Shengjing Hospital

Brief Summary

Spinal anesthesia technology has been widely used in various surgeries and multi-mode analgesia. Spinal ultrasound imaging has been proved to be a reliable tool for evaluating spinal parameters. Ultrasound-guided spinal puncture technology has also been skillfully applied in clinical practice. How to provide perfect nerve block effect for operation, provide good postoperative analgesia, and prevent unnecessary extensive block leading to other complications and related risks has always been the focus of anesthesiologists. Doses and the relationship between the anesthesia plane great individual differences, and previous research on the patient's own condition such as height, weight, 6 to the anesthesia plane have different results, the influence of clinical work often refer patients height adjustment of drug doses, this research attempts to evaluate ultrasound was used to assess spinal vertebral body in the plane of the length and width of subarachnoid and anesthesia.

Detailed Description

Not available

Study Timeline

• Status Verified: 2021-12
• Study First Submitted: 2021-12-16
• Study First Submitted QC: 2022-01-20
• Last Update Submitted: 2022-01-20
• Study First Posted: 2022-01-21
• Last Update Posted: 2022-01-21
• Study Start: 2022-02
• Primary Completion: 2023-02
• Study Completion: 2023-02

Recruitment & Eligibility

• Status: UNKNOWN
• Sex: All
• Target Recruitment: 50

Inclusion Criteria

• Patients undergoing elective lower limbs surgery
• ASA: grade I to III

Exclusion Criteria

• There are contraindications to spinal anesthesia
• Allergic to local anesthetics
• Patient refused

Study & Design

• Study Type: OBSERVATIONAL
• Study Design: Not specified

Arm && Interventions

Group	Intervention	Description
Ultrasound-guided group	ltrasonic measure	Adult patients with American Society of Anesthesiologists physical status I/II/III scheduled to undergo elective Lower limb surgery under spinal anesthesia were considered for eligibility.

Primary Outcome Measures

Name	Time	Method
The length of lumbar cone	1year	Ultrasound findings
The width of subarachnoid space was measured by ultrasound	1year	Ultrasound findings