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Trial registered on ANZCTR
Registration number
ACTRN12624000866505p
Ethics application status
Submitted, not yet approved
Date submitted
8/05/2024
Date registered
15/07/2024
Date last updated
15/07/2024
Date data sharing statement initially provided
15/07/2024
Type of registration
Prospectively registered
Titles & IDs
Public title
Chronic pain following appendicectomy in children
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Scientific title
The prevalence of chronic post-surgical pain following paediatric appendicectomy
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Secondary ID [1]
312101
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Nil known
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Universal Trial Number (UTN)
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Trial acronym
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Linked study record
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Health condition
Health condition(s) or problem(s) studied:
Appendicitis
333735
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Chronic Pain
333736
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Condition category
Condition code
Anaesthesiology
330420
330420
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0
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Pain management
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Oral and Gastrointestinal
330907
330907
0
0
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Other diseases of the mouth, teeth, oesophagus, digestive system including liver and colon
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Intervention/exposure
Study type
Observational
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Patient registry
False
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Target follow-up duration
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Target follow-up type
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Description of intervention(s) / exposure
The exposure will be to laparoscopic with or without open appendicectomy and observation period will be up to 12 weeks post-operatively. Data to be collected will include questionnaires about presence or absence of pain and whether participants have returned to normal functioning in a 5 minute phone call at 3 weeks and 15 minute call at 12 weeks. The 12 week telephone call will also include a series of questionnaires from the paediatric electronic persistent pain outcome collaboration (ePPOC) including the Brief Pain Inventory (BPI), Functional Disability Index (FDI), Paediatric Quality of Life Inventory (PedsQL), Bath Adolescent Pain Questionnaire (BAPQ5).
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Intervention code [1]
328540
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Diagnosis / Prognosis
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Comparator / control treatment
No control group
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Control group
Uncontrolled
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Outcomes
Primary outcome [1]
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Prevalence of chronic postsurgical pain in patients 2-16 years of age after appendicectomy
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Assessment method [1]
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Measure the presence or absence of chronic postsurgical pain at phone interviews as defined by the International Association for the study of Pain (IASP) in the ICD-11: “Chronic postsurgical or posttraumatic pain is defined as chronic pain that develops or increases in intensity after a surgical procedure or a tissue injury and persists beyond the healing process, ie, at least 3 months after the surgery or tissue trauma”.
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Timepoint [1]
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Phone interviews to be conducted at 3 weeks and 12 weeks post-operatively.
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Secondary outcome [1]
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Intensity and severity of chronic postsurgical pain
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Assessment method [1]
434795
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The Brief Pain Inventory (BPI) questionnaire
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Timepoint [1]
434795
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Phone interview at 12 weeks
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Secondary outcome [2]
434796
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Prevalence and nature of pain-related worries
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Assessment method [2]
434796
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Bath Adolescent Pain Questionnaire - pain related worry section (BAPQ5)
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Timepoint [2]
434796
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Phone interview at 12 weeks.
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Secondary outcome [3]
437511
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Difficulty or disability with daily function
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Assessment method [3]
437511
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Functional Disability Inventory (FDI)
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Timepoint [3]
437511
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Phone interview at 12 weeks.
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Secondary outcome [4]
437512
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Health-related quality of life
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Assessment method [4]
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Paediatric Quality of Life Inventory (PedsQL)
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Timepoint [4]
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Phone interview at 12 weeks.
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Eligibility
Key inclusion criteria
1. Is between the ages of 2 and 16 at enrolment
2. Has undergone/is undergoing appendicectomy for presumed appendicitis
3. Has provided consent or has consent from a legally acceptable representative, who is capable of understanding the informed consent document, on the participant’s behalf
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Minimum age
2
Years
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Maximum age
16
Years
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Sex
Both males and females
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Can healthy volunteers participate?
No
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Key exclusion criteria
1. Expected to be unable to be contacted for follow up
2. Unable to complete a questionnaire due to language barrier
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Study design
Purpose
Natural history
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Duration
Longitudinal
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Selection
Convenience sample
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Timing
Prospective
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Statistical methods / analysis
The primary outcome for this study is the prevalence of chronic post-surgical pain following paediatric appendicectomy. A convenience sample of 100 (anticipating a dropout rate of around 10%) has been chosen. If we determined 5% prevalence then the 95% confidence interval would be 1.5-11% which provides an acceptable degree of precision. If we found a 0% prevalence the upper bound of the 95% confidence interval would be 3.6%. If we determined a 10% prevalence then the 95% confidence interval would be 5-17% and we will then conduct a series of exploratory univariate analyses to assess if the pain is associated with any particular patient or surgical factor.
Following determination of prevalence for chronic post-surgical pain, we will assess descriptive statistics of the population (age, gender, weight, BMI, surgical indication, surgical type) and then impact of chronic pain if present (pain questionnaires). All data will be expressed as a number, range, percent and mean and standard deviation as appropriate. The nature of the pain will be described in descriptively. For the exploratory analysis where pain is present or not numerical data between groups will be compared with a Student's t-test. Associations between categorical variables will be analysed using Pearson's chi squared tests. Logistical regressions will be performed to identify relationships between variables and chronic post-surgical pain. A value p < 0.05 will be considered statically significant.
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Recruitment
Recruitment status
Not yet recruiting
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Date of first participant enrolment
Anticipated
31/07/2024
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Actual
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Date of last participant enrolment
Anticipated
31/12/2024
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Actual
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Date of last data collection
Anticipated
31/03/2025
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Actual
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Sample size
Target
100
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Accrual to date
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Final
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Recruitment in Australia
Recruitment state(s)
VIC
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Recruitment hospital [1]
26519
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The Royal Childrens Hospital - Parkville
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Recruitment postcode(s) [1]
42560
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3052 - Parkville
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Funding & Sponsors
Funding source category [1]
316459
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Other
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Name [1]
316459
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Murdoch Childrens' Research Institute
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Address [1]
316459
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Country [1]
316459
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Australia
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Funding source category [2]
316840
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Hospital
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Name [2]
316840
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Royal Children's Hospital Melbourne
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Address [2]
316840
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Country [2]
316840
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Australia
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Primary sponsor type
Other
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Name
Murdoch Childrens' Research Institute
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Address
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Country
Australia
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Secondary sponsor category [1]
318633
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Hospital
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Name [1]
318633
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Royal Childrens' Hospital Melbourne
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Address [1]
318633
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Country [1]
318633
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Australia
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Ethics approval
Ethics application status
Submitted, not yet approved
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Ethics committee name [1]
315249
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The Royal Children’s Hospital Human Research Ethics Committee
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Ethics committee address [1]
315249
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http://www.rch.org.au/ethics
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Ethics committee country [1]
315249
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Australia
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Date submitted for ethics approval [1]
315249
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29/06/2024
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Approval date [1]
315249
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Ethics approval number [1]
315249
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Summary
Brief summary
Chronic post-surgical pain is an increasingly recognised condition which can have great impact on a child's quality of life. Appendicectomy is one of the most common surgeries performed on children, yet it is not well known how many children develop chronic pain as a result. This is a prospective cohort study using a questionnaire following paediatric appendicectomy at 3 and 12 weeks to determine the presence of chronic post-surgical pain. Where this is detected, further questionnaires and assessment by pain physician will be used to investigate the impact of and risk factors for chronic pain following paediatric appendicectomy.
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Trial website
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Trial related presentations / publications
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Public notes
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Contacts
Principal investigator
Name
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Dr Simran Rajpal
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Address
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Murdoch Children's Research Institute, 50 Flemington Rd, Parkville VIC 3052
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Country
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Australia
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Phone
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+61 3 8341 6200
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Fax
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Email
134130
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[email protected]
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Contact person for public queries
Name
134131
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Simran Rajpal
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Address
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Murdoch Children's Research Institute, 50 Flemington Rd, Parkville VIC 3052
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Country
134131
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Australia
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Phone
134131
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+61 3 8341 6200
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Fax
134131
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Email
134131
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[email protected]
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Contact person for scientific queries
Name
134132
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Simran Rajpal
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Address
134132
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Murdoch Children's Research Institute, 50 Flemington Rd, Parkville VIC 3052
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Country
134132
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Australia
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Phone
134132
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+61 3 8341 6200
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Fax
134132
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Email
134132
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[email protected]
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Data sharing statement
Will individual participant data (IPD) for this trial be available (including data dictionaries)?
No
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No/undecided IPD sharing reason/comment
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What supporting documents are/will be available?
No Supporting Document Provided
Results publications and other study-related documents
Documents added manually
No documents have been uploaded by study researchers.
Documents added automatically
No additional documents have been identified.
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