Infrared Thermography to Evaluate the Effect of Paravertebral Block

Completed

• Conditions: Paravertebral Block

• Registration Number: NCT04078347
• Lead Sponsor: Huazhong University of Science and Technology

Brief Summary

The aim of this prospective observational study was to evaluate the changes of skin temperature after the paravertebral block measured by infrared thermography.

Detailed Description

Methods: Patients scheduled for elective surgery with paravertebral block will receive infrared thermography measures 5 min before the block and continous to 20 min after the block. The sensitivity, specificity of infrared thermography as diagnostic methods will be determined by receiver operator characteristic analysis.

Study Timeline

• Study First Submitted: 2019-08-06
• Study First Submitted QC: 2019-09-03
• Study First Posted: 2019-09-06
• Study Start: 2019-10-01
• Primary Completion: 2020-08-30
• Study Completion: 2020-10-31
• Status Verified: 2020-11
• Last Update Submitted: 2021-01-08
• Last Update Posted: 2021-01-12

Recruitment & Eligibility

• Status: COMPLETED
• Sex: All
• Target Recruitment: 61

Inclusion Criteria

• With informed consent
• American Society of Anesthesiologists physical status Ⅰ-Ⅱ
• Undergo elective surgery with planned paravertebral block

Exclusion Criteria

• Refusal to participate in the study
• pre-existing infection at the block site
• younger than 18-yr-old
• BMI>35
• significant thoracic kyphoscoliosis
• Those who had taken vasodilatory drugs before surgery
• history of previous thoracic or breast surgery
• Preoperative analgesic medications
• Any contraindications to peripheral nerve block such as coagulation abnormalities, allergy to local anaesthetics, peripheral neuropathy.

Study & Design

• Study Type: OBSERVATIONAL
• Study Design: Not specified

Primary Outcome Measures

Name	Time	Method
Changes of skin temperature	From baseline up to 20 minutes after block	Changes of skin temperature determined by infrared thermography

Secondary Outcome Measures

Name	Time	Method
Noinvasive blood pressure	From baseline up to 20 minutes after block	Vital signs
Heart rate	From baseline up to 20 minutes after block	Vital signs
SPO2	From baseline up to 20 minutes after block	vital signs
Sensory block level	From baseline up to 20 minutes after block	Sensory block level determined by pinprick.

Trial Locations

Locations (1)

Tongji Hospital; 🇨🇳 Wuhan, Hubei, China