About this trial
This study aims to evaluate the influence of ultrasound-guided erector spinae plane block on postoperative pain and diaphragmatic dysfunction in pediatric patients undergoing thoracoscopic sympathectomy.
Eligibility criteria
This trial does not accept healthy volunteersQualifiers
Age from 6 to 16 years.
Either sexes (male or female).
American Society of Anesthesiologists (ASA) physical status I-II.
Scheduled for bilateral thoracoscopic sympathectomy under general anesthesia.
Disqualifiers
History of allergy to local anesthetics.
Abnormal liver/kidney function.
Severe spinal deformities.
Bleeding or coagulation disorders.
Trial design
Parallel
Treatments tested in this trial
Erector spinae plane block
Other interventionPatients will receive bilateral erector spinae plane block after the induction of general anesthesia as a study group.
General anesthesia
Other interventionPatients will not receive the block after the induction of general anesthesia as a control group.
Treatment groups
Trial outcomes
Primary outcomes
Degree of pain
Postoperative pain assessment with the numeric rating scale (NRS) score. NRS (0 represents "no pain" while 10 represents "the worst pain imaginable"). NRS will be assessed on arrival at the post-anesthesia care unit (PACU), 1, 2, 4, 8, 12, and 24 h postoperatively.
Secondary outcomes
Total analgesic consumption
Total analgesic consumption will be recorded.
Anesthetic consumption: minimum alveolar concentration
Anesthetic consumption: minimum alveolar concentration (MAC) of sevoflurane every 10 min using Anesthetic Consumption = Flow Rate × Concentration of Anesthetic in Vapor.
Diaphragmatic excursion
Diaphragmatic excursion will be recorded using ultrasound preoperatively and postoperatively.
Time to the first request for the rescue analgesia
Time to the first request for the rescue analgesia will be recorded from the end of surgery till first dose of meperidine administrated.
Sponsors and contacts
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