Infrared Thermography to Evaluate the Effect of Paravertebral Block

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

Get a concise snapshot of the trial, including recruitment status, study phase, enrollment targets, and key timeline milestones.

Recruitment Status

COMPLETED

Total Enrollment

61 participants

Study Classification

OBSERVATIONAL

Study Start Date

2019-10-01

Study Completion Date

2020-10-31

Brief Summary

Review the sponsor-provided synopsis that highlights what the study is about and why it is being conducted.

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

Related Clinical Trials

Explore similar clinical trials based on study characteristics and research focus.

Perfusion Index in the Success of Peripheral Nerve Block

NCT02989896

Perfusion Index Peripheral Nerve Block Success

UNKNOWN

Assessment of Temperature by Infrared Thermography and Blood Conduction Velocity by Doppler After Applying Shortwave Diathermy and Microwave - Correlations With Cardiovascular and Hemodynamic Parameters

NCT01872117

Healthy Individuals

COMPLETED NA

Perioperative Normothermia: Temperature and Prewarming Methods

NCT04011462

Hypothermia

UNKNOWN NA

Multicenter Application of the Intraoperative Hypothermia Risk Prediction Scale and the Distribution of Risk Factor Characteristics in Surgical Patients

NCT06836245

Hypothermia

ENROLLING_BY_INVITATION

Infrared Thermography-based Study of the Warming Effect Difference at Waist

NCT05665426

Health

COMPLETED NA

Detailed Description

Dive into the extended narrative that explains the scientific background, objectives, and procedures in greater depth.

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.

Conditions

See the medical conditions and disease areas that this research is targeting or investigating.

Paravertebral Block

Study Design

Understand how the trial is structured, including allocation methods, masking strategies, primary purpose, and other design elements.

Observational Model Type

CASE_CONTROL

Study Time Perspective

PROSPECTIVE

Study Groups

Review each arm or cohort in the study, along with the interventions and objectives associated with them.

Successful Paravertebral block

Pinprick test was evaluated at 20 min after Paravertebral block. Pinprick sensation was assessed using a 22-gauge short bevel needle from T2 to T10 at midclavicular line bilaterally . Pinprick response was recorded quantitatively as 1 (sensation) or 0 (no sensation/numb). Successful block was defined as the pinprick score was 0 at 20 min after block. Otherwise, it was defined as a failed block.

Paravertebral block at T4 and T5 level

Intervention Type PROCEDURE

Paravertebral block is performed at T4 and T5 level under realtime ultrasound guidenance with 10ml of 0.5% ropivacaine for each block, respectively.

Failed Paravertebral block

Pinprick test was evaluated at 20 min after Paravertebral block. Pinprick sensation was assessed using a 22-gauge short bevel needle from T2 to T10 at midclavicular line bilaterally . Pinprick response was recorded quantitatively as 1 (sensation) or 0 (no sensation/numb). Successful block was defined as the pinprick score was 0 at 20 min after block. Otherwise, it was defined as a failed block.

Paravertebral block at T4 and T5 level

Intervention Type PROCEDURE

Paravertebral block is performed at T4 and T5 level under realtime ultrasound guidenance with 10ml of 0.5% ropivacaine for each block, respectively.

Interventions

Learn about the drugs, procedures, or behavioral strategies being tested and how they are applied within this trial.

Paravertebral block at T4 and T5 level

Paravertebral block is performed at T4 and T5 level under realtime ultrasound guidenance with 10ml of 0.5% ropivacaine for each block, respectively.

Intervention Type PROCEDURE

Eligibility Criteria

Check the participation requirements, including inclusion and exclusion rules, age limits, and whether healthy volunteers are accepted.

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.

Minimum Eligible Age

18 Years

Maximum Eligible Age

70 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No