Study of Analgesic Efficacy of Nerve Blocks on Otoplastic Surgery
NCT ID: NCT04192708
Last Updated: 2020-07-28
Study Results
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.
UNKNOWN
PHASE4
144 participants
INTERVENTIONAL
2020-02-17
2020-11-30
Brief Summary
Review the sponsor-provided synopsis that highlights what the study is about and why it is being conducted.
Methods: In this prospective randomized study, 144 children will be enrolled in this study and randomized into 3 groups:48 patients will received ultrasound-guided ICNB(UG-ICNB group);48 patients will receive ICNB under direct vision (DV-ICNB group) and 48 patients will receive paravertebral block(PV group) undergoing postoperative pain control using either preventive ICNB followed by catheter-based infusion (33 patients, study group) or intravenous (IV) analgesia alone (33 patients, control group). ICNB will be performed by injecting 1% lidocaine plus 1/200000 epinephrine 3ml into each of three intercostal spaces before perichondrial dissection. PV will be carried out by injecting 1% lidocaine plus 1/200000 epinephrine 9ml into T7 paravertebral space just after induction of anesthesia.before wound closure.Each patient receive patient-controlled intravenous analgesia(PCIA) after surgery.Severity of pain,nausea,vomiting and other side effects would be assessed for the postoperative period of 48 hours.
Related Clinical Trials
Explore similar clinical trials based on study characteristics and research focus.
To Compare the Analgesic Effects of Different Nerve Block Analgesia Methods in Thoracoscopic Surgery
NCT06598852
EOI Block in Otoplasty With Rib Cartilage Graft
NCT07262944
Postoperative Anelgesic Effect of Rhomboid Intercostal Nerve Block Versus Erector Spinae Plane Block
NCT05452369
Opioid-Free Pain Management After NUSS Surgery in Adolescents
NCT07288424
Ultrasound-Guided Serratus Plane Block Vs Paravertebral Block For Chronic Post-mastectomy Pain.
NCT04317898
Detailed Description
Dive into the extended narrative that explains the scientific background, objectives, and procedures in greater depth.
The primary outcomes is the pain severity,intraoperative fentanyl consumption ,patient-controlled intravenous analgesia(PCIA) requirement and severity of nausea and vomiting during the period of postoperative 48 hours. The secondary outcomes are blood loss during harvesting rib cartilage,fentanyl consumption in post-anaesthesia care unit (PACU),time from PACU arrival to first obtainable pain score,first time of urination,duration of PACU stay and postoperative adverse events such as respiratory depression(defined as respiratory rate \<8bpm, requirement of naloxone, and/or peripheral oxygen saturation \<90%),pneumothorax and pruritus.
Based on our previous clinical observation, 2.7(SD 0.5)μg/kg of fentanyl is required in DV-ICNB group.We suppose that the requirement could be reduce by 0.3μg/kg in UG-ICNB and PV group .Thus,42 patients are required to detect a significant difference among the groups at a significance level of 95% and a power of 80%. 20 patients were finally enrolled in the study due to possible dropouts (20%).
The continuous variables were expressed as means ± standard deviation (SD) whereas categorical variables were expressed as frequency and percentage for data description. Continous data with a normal distribution is manifested as mean±SD and assessed by Unpaired sample t-test ;continous data with skewed distribution is presented as median(interquartile range,IQR) and assessed by Man-Whitney U test ;categorical data are presented as number and assessed by Chi-square/Fisher exact test. The VAS scores,PCIA consumption and severity of nausea and vomiting of the three groups at multiple time points were analyzed via two-way repeated-measures Anova .
Conditions
See the medical conditions and disease areas that this research is targeting or investigating.
Study Design
Understand how the trial is structured, including allocation methods, masking strategies, primary purpose, and other design elements.
RANDOMIZED
PARALLEL
SUPPORTIVE_CARE
TRIPLE
Study Groups
Review each arm or cohort in the study, along with the interventions and objectives associated with them.
DV-ICNB group
intercostal nerve block under direct vision
intercostal nerve block under direct vision
When the intercostal nerve is adequated exposed，a surgeon use a 5ml syringe to perform the block and the needle is tilted 15 degree cephalad and advanced towards the caudal rim of the lib，and penetration depth is about 5mm.Then 1% lidocaine and 1/200000 epinephrine 3ml will be injected when negative aspiration of gas or blood.Same procedure will be repeted in the other two exposed intercostal spaces.
UG-ICNB group
intercostal nerve block under ultrasound guidance
intercostal nerve block under ultrasound guidance
After induction ，an ultrasonographic probe (M-Turbo with the L25 transducer; SonoSite Inc.) is used to scan laterally from the midaxillary line to identify the required anatomic landmarks, while the patients are in a lateral decubitus position. The ribs are identified as hyperechoic streaks, while the pleura appeared as hyperechoic lines between and below the ribs.The needle was advanced towards the caudal rim of the rib until the distal tip is just between the innermost and inner intercostal muscle.1% lidocaine and 1/200000 epinephrine 3ml will be injected when negative aspiration of gas or blood.Same procedure will be repeted in the other two exposed intercostal spaces.
PV group
thoracic paravertebral block under ultrasound guidance
paravertebral block under ultrasound guidance
Paravertebral block is performed between the thoracic segments T7-8,A linear ultrasound transducer (M-Turbo with the L25×transducer; SonoSite Inc.) is placed to parallel the T7 transverse process so as to identify the T7 spinous process，the T7 transverse process and 7th lib.Then move the probe caudally until the thoracic paravertebral space (TPVS) which is bounded by transverse process,pleura and internal intercostal membrane.Using in-plane technique, we advance the 20-gauge needle(Becton Dickinson Infusion Therapy Sysstems Inc.Sandy,Utah 84070,USA.1.88"，1.1×48mm) until the needle tip penetrates the internal intercostal membrane,9ml mixture of 1% lidocaine and 1/200000 epinephrine after no blood or gas is aspirated.Both PVB and ultrasound-guided ICNB is performed by the same anesthesiologist
Interventions
Learn about the drugs, procedures, or behavioral strategies being tested and how they are applied within this trial.
intercostal nerve block under direct vision
When the intercostal nerve is adequated exposed，a surgeon use a 5ml syringe to perform the block and the needle is tilted 15 degree cephalad and advanced towards the caudal rim of the lib，and penetration depth is about 5mm.Then 1% lidocaine and 1/200000 epinephrine 3ml will be injected when negative aspiration of gas or blood.Same procedure will be repeted in the other two exposed intercostal spaces.
intercostal nerve block under ultrasound guidance
After induction ，an ultrasonographic probe (M-Turbo with the L25 transducer; SonoSite Inc.) is used to scan laterally from the midaxillary line to identify the required anatomic landmarks, while the patients are in a lateral decubitus position. The ribs are identified as hyperechoic streaks, while the pleura appeared as hyperechoic lines between and below the ribs.The needle was advanced towards the caudal rim of the rib until the distal tip is just between the innermost and inner intercostal muscle.1% lidocaine and 1/200000 epinephrine 3ml will be injected when negative aspiration of gas or blood.Same procedure will be repeted in the other two exposed intercostal spaces.
paravertebral block under ultrasound guidance
Paravertebral block is performed between the thoracic segments T7-8,A linear ultrasound transducer (M-Turbo with the L25×transducer; SonoSite Inc.) is placed to parallel the T7 transverse process so as to identify the T7 spinous process，the T7 transverse process and 7th lib.Then move the probe caudally until the thoracic paravertebral space (TPVS) which is bounded by transverse process,pleura and internal intercostal membrane.Using in-plane technique, we advance the 20-gauge needle(Becton Dickinson Infusion Therapy Sysstems Inc.Sandy,Utah 84070,USA.1.88"，1.1×48mm) until the needle tip penetrates the internal intercostal membrane,9ml mixture of 1% lidocaine and 1/200000 epinephrine after no blood or gas is aspirated.Both PVB and ultrasound-guided ICNB is performed by the same anesthesiologist
Eligibility Criteria
Check the participation requirements, including inclusion and exclusion rules, age limits, and whether healthy volunteers are accepted.
Inclusion Criteria
2. Scheduled for rib cartilage harvest from three ribs for auricular reconstruction.
Exclusion Criteria
2. Rib cartilage harvest from more or less than three ribs
3. History of analgesic administration (eg, opioids, acetaminophen, or 4.Nonsteroidal anti-inflammatory drugs) 24 hours before premedication
5.History of coagulation disorders or allergy to local anesthetics 6.History of renal insufficiency or an American Society of Anesthesiologists (ASA) physical status that was higher than II 7.Inability to express pain scores or severity of nausea 8.Inability to understand PCIA device use 9.Parental objection to ICNBs or paravertebral block.
8 Years
16 Years
ALL
No
Sponsors
Meet the organizations funding or collaborating on the study and learn about their roles.
Eye & ENT Hospital of Fudan University
OTHER
Responsible Party
Identify the individual or organization who holds primary responsibility for the study information submitted to regulators.
Xiao Hu
The attentding physician of Department of Anesthesiology
Principal Investigators
Learn about the lead researchers overseeing the trial and their institutional affiliations.
Xiao Hu, Master
Role: PRINCIPAL_INVESTIGATOR
Eye and ENT Hospital of Fudan University
Locations
Explore where the study is taking place and check the recruitment status at each participating site.
The Eye,Ear,Nose and throat Hospital ,Fudan University
Shanghai, , China
Countries
Review the countries where the study has at least one active or historical site.
Central Contacts
Reach out to these primary contacts for questions about participation or study logistics.
Facility Contacts
Find local site contact details for specific facilities participating in the trial.
References
Explore related publications, articles, or registry entries linked to this study.
Nagata S. A new method of total reconstruction of the auricle for microtia. Plast Reconstr Surg. 1993 Aug;92(2):187-201. doi: 10.1097/00006534-199308000-00001.
Lukosiene L, Rugyte DC, Macas A, Kalibatiene L, Malcius D, Barauskas V. Postoperative pain management in pediatric patients undergoing minimally invasive repair of pectus excavatum: the role of intercostal block. J Pediatr Surg. 2013 Dec;48(12):2425-30. doi: 10.1016/j.jpedsurg.2013.08.016.
Lukosiene L, Macas A, Trepenaitis D, Kalibatiene L, Malcius D, Barauskas V. Single shot intercostal block for pain management in pediatric patients undergoing the Nuss procedure: a double-blind, randomized, controlled study. J Pediatr Surg. 2014 Dec;49(12):1753-7. doi: 10.1016/j.jpedsurg.2014.09.014. Epub 2014 Oct 1.
Willschke H, Marhofer P, Bosenberg A, Johnston S, Wanzel O, Cox SG, Sitzwohl C, Kapral S. Ultrasonography for ilioinguinal/iliohypogastric nerve blocks in children. Br J Anaesth. 2005 Aug;95(2):226-30. doi: 10.1093/bja/aei157. Epub 2005 May 27.
Vemula R, Kutzin M, Greco G, Kutzin T. The use of intercostal nerve blocks for implant-based breast surgery. Plast Reconstr Surg. 2013 Jul;132(1):178e-180e. doi: 10.1097/PRS.0b013e3182911018. No abstract available.
Other Identifiers
Review additional registry numbers or institutional identifiers associated with this trial.
chevalier
Identifier Type: -
Identifier Source: org_study_id
More Related Trials
Additional clinical trials that may be relevant based on similarity analysis.