Pain relief for children who are undergoing hernia surgeries, using a landmark technique or using ultrasound guidance

ISRCTN ISRCTN10599628
DOI https://doi.org/10.1186/ISRCTN10599628
Secondary identifying numbers IEC/1/942/2019
Submission date
02/09/2022
Registration date
16/09/2022
Last edited
29/12/2023
Recruitment status
No longer recruiting
Overall study status
Completed
Condition category
Surgery
Prospectively registered
Protocol
Statistical analysis plan
Results
Individual participant data

Plain English summary of protocol

Background and study aims
Caudal epidural block is a popular regional anaesthetic technique in children undergoing infraumbilical surgeries (surgery below the navel). The aim of this study is to compare overall block success rates between the conventional and ultrasound-guided methods of caudal blocks. Other objectives are to compare block performance time and the number of attempts when using the two techniques.

Who can participate?
Children aged 1-8 years belonging to ASA physical status grades 1 and 2, undergoing elective inguinal hernial surgeries under general anaesthesia with caudal blocks.

What does the study involve?
Participants were divided into two groups and underwent caudal blocks either by the conventional landmark technique, or by the ultrasound-guided method. The child is given general anaesthesia as per standard practice and then given the caudal block for analgesia.

What are the possible benefits and risks of participating?
Participating in the study would ensure that the child will be pain-free during the surgery and postoperatively. As it is a commonly done procedure for pain relief, risks would include the usual risks involved in the caudal procedure. There is no higher than normal risk if participating in this study.

Where is the study run from?
St John's Medical College and Hospital (India)

When is the study starting and how long is it expected to run for?
October 2019 to September 2021

Who is funding the study?
Investigator initiated and funded

Who is the main contact?
Dr Mythreyi Muthu Krishnan, mythu.apr24@gmail.com
Dr Anjali T. M. Ollapally, dr.anjaliollapally@gmail.com

Contact information

Dr Anjali Ollapally
Scientific

Dept. Of Anaesthesiology
St John's Medical College and Hospital
Bangalore
560034
India

Phone +91 80-22065502
Email dr.anjaliollapally@gmail.com
Dr Mythreyi Muthu Krishnan
Principal Investigator

Dept. Of Anaesthesiology
St John's Medical College and Hospital
Bangalore
560034
India

Phone +91 80-22065502
Email mythu.apr24@gmail.com

Study information

Study designSingle centre interventional randomized control trial
Primary study designInterventional
Secondary study designRandomised controlled trial
Study setting(s)Hospital
Study typeTreatment
Participant information sheet 42319_PIS.pdf
Scientific titleUltrasound-guided versus conventional caudal block in children
Study acronymUSG-C
Study objectivesThe success rate of ultrasound-guided caudal block is superior to the conventional landmark technique
Ethics approval(s)Approved 30/10/2019, Institutional Ethics Committee (St John's Medical College and Hospital, Sarjapur road, Bangalore 560034, India; +91 80-49466346; sjmc.ierb@stjohns.in), ref: 292/2019
Health condition(s) or problem(s) studiedIntraoperative and postoperative analgesia among children undergoing elective inguinal hernia surgeries
InterventionSixty-four children aged 1-8 years belonging to ASA physical status groups 1 and 2 undergoing elective inguinal hernial surgery were studied. After induction of general anaesthesia, they were administered caudal blocks depending on the groups they were randomly allocated to using a computer-generated lot system:
Group A (conventional) – 0.5 ml/kg of 0.25% Bupivacaine was injected after the needle entered the sacral canal
Group B (USG) – 0.5 ml/kg of 0.25% Bupivacaine was injected right after the needle was visualised piercing the sacrococcygeal ligament in the longitudinal view.

The children were monitored during surgery every 5 minutes for adequacy of analgesia. There was hemodynamic and respiratory monitoring in the Post Anesthesia Care Unit (as is customary for all general anaesthesia).
Intervention typeProcedure/Surgery
Primary outcome measureOverall block success rate, defined as the absence of significant motor movements at the time of surgical incision, or a significant increase in heart rate (HR)/respiratory rate (RR)
Secondary outcome measures1. Block performance time, calculated as the time period from identification of structures to the termination of injection of local anaesthetic
2. Number of attempts taken: if the patient is pricked with a needle and it is then removed, it is considered an attempt. The maximum number of attempts was three, the third attempt being made by another senior anaesthesiologist.
Overall study start date15/10/2019
Completion date30/09/2021

Eligibility

Participant type(s)Patient
Age groupChild
Lower age limit1 Year
Upper age limit8 Years
SexBoth
Target number of participants64
Total final enrolment64
Key inclusion criteria1. Between 1-8 years of age with no contraindications for caudal block
2. Scheduled for elective inguinal hernia surgeries
3. Belonging to ASA physical status 1 or 2
Key exclusion criteria1. Consent not given for the procedure
2. Contraindications for caudal block
Date of first enrolment01/11/2019
Date of final enrolment01/09/2021

Locations

Countries of recruitment

  • India

Study participating centre

St. John's Medical College and Hospital
Sarjapur road
Bangalore
560034
India

Sponsor information

St. John's National Academy of Health Sciences
Hospital/treatment centre

Sarjapur Road
Bengaluru
560034
India

Phone +91 (0)80-22065502
Email sjmc.ierb@stjohns.in
Website http://www.stjohns.in/
ROR logo "ROR" https://ror.org/03qvjzj64

Funders

Funder type

Other

Investigator initiated and funded

No information available

Results and Publications

Intention to publish date30/09/2022
Individual participant data (IPD) Intention to shareYes
IPD sharing plan summaryPublished as a supplement to the results publication
Publication and dissemination planPlanned publication in a high-impact peer reviewed journal
IPD sharing planAll data generated or analysed during this study will be included in the subsequent results publication

Study outputs

Output type Details Date created Date added Peer reviewed? Patient-facing?
Participant information sheet 14/09/2022 No Yes
Results article 01/08/2023 29/12/2023 Yes No

Additional files

42319_PIS.pdf

Editorial Notes

29/12/2023: Publication reference added.
14/09/2022: Trial's existence confirmed by the Institutional Ethics Committee (St John's Medical College and Hospital).