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Trial details imported from ClinicalTrials.gov
For full trial details, please see the original record at
https://clinicaltrials.gov/ct2/show/NCT01660048
Registration number
NCT01660048
Ethics application status
Date submitted
31/07/2012
Date registered
8/08/2012
Date last updated
20/03/2013
Titles & IDs
Public title
A Prospective Study Comparing Single and Multiport Laparoscopic Inguinal Hernia Repair
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Scientific title
Prospective Randomized Single Blind Controlled Study Comparing Single and Multiport Laparoscopic Total Extraperitoneal Inguinal Hernia Repair
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Secondary ID [1]
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Holroyd Private Hospital
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Secondary ID [2]
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HTranSILStrial
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Universal Trial Number (UTN)
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Trial acronym
SILSTEP
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Linked study record
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Health condition
Health condition(s) or problem(s) studied:
Inguinal Hernia
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Condition category
Condition code
Oral and Gastrointestinal
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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
Interventional
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Description of intervention(s) / exposure
Treatment: Surgery - SILS TEP repair
Treatment: Surgery - Total extraperitoneal inguinal hernia repair
Experimental: SILS TEP repair - Half of the patients will undergo laparoscopic total extraperitoneal inguinal hernia repair using a single port (Triport)
Active Comparator: Multiports TEP repair - Half of the patients will undergo the conventional multiports total extraperitoneal inguinal hernia repair
Treatment: Surgery: SILS TEP repair
perform the laparoscopic total extraperitoneal inguinal hernia repair using a single port
Treatment: Surgery: Total extraperitoneal inguinal hernia repair
Conventional multiport laparoscopic total extraperitoneal inguinal hernia repair
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Intervention code [1]
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Treatment: Surgery
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Comparator / control treatment
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Control group
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Outcomes
Primary outcome [1]
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Conversion to multiport or open operation
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Assessment method [1]
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This refers to whether any single port procedure needs to be converted to multiports or open procedure. This is quite a normal process as a proportion of multiport procedures are converted to open procedures for safety reasons.
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Timepoint [1]
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during operation
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Secondary outcome [1]
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Operating time
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Assessment method [1]
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This assess the time taken to perform the operation and is defined as time from initial skin incision to complete wound closure
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Timepoint [1]
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during operation
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Secondary outcome [2]
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Length of hospital stay
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Assessment method [2]
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This assess how long patient stays in hospital whether it is a day procedure or whether they need to stay in hospital overnight or longer
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Timepoint [2]
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day procedure or overnight stay
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Secondary outcome [3]
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Pre and post operative pain scores
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Assessment method [3]
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This utilizes the visual analogue pain score 0-10 and the patients are assessed preoperatively, day 1 and day 7 after surgery
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Timepoint [3]
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preop, day one and day 7 postop
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Secondary outcome [4]
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Analgesic requirements
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Assessment method [4]
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This assesses how many painkiller tablets (Dextropropoxyphene) patients ingest in the first week after operation
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Timepoint [4]
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one week
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Secondary outcome [5]
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return to work or normal physical activities
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Assessment method [5]
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This assesses how soon patients return to work or normal physical activities
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Timepoint [5]
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6 weeks
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Secondary outcome [6]
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Quality of life health scores
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Assessment method [6]
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SF36 forms are completed before operation, 6 weeks and 1 year after operation
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Timepoint [6]
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preop, 6 weeks and 1 year postop
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Secondary outcome [7]
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Cosmetic scar score
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Assessment method [7]
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patients will be asked to assess satisfaction of their own scars 6 weeks after surgery
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Timepoint [7]
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6 weeks
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Secondary outcome [8]
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Recurrence of hernia
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Assessment method [8]
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Patients will be assessed at 1 week, 6 weeks and one year to detect presence of recurrence of hernia
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Timepoint [8]
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1 year
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Secondary outcome [9]
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post-operative complications including urinary retention, wound infection, seroma formation, chronic pain, testicular atrophy
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Assessment method [9]
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Patients will be seen at 1 week, 6 weeks to assess for any peri-operative complications associated with hernia surgery as enumerated above
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Timepoint [9]
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6 weeks
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Eligibility
Key inclusion criteria
- all referred patients with inguinal hernias
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Minimum age
16
Years
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Maximum age
86
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
- workers Compensation cases
- previous extraperitoneal intervention
- unfit for a general anaesthetic
- strangulated hernias
- present of or previous ventral hernia repair extending 5 cm below umbilicus
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Study design
Purpose of the study
Treatment
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Allocation to intervention
Randomised controlled trial
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Procedure for enrolling a subject and allocating the treatment (allocation concealment procedures)
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Methods used to generate the sequence in which subjects will be randomised (sequence generation)
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Masking / blinding
Blinded (masking used)
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Who is / are masked / blinded?
The people receiving the treatment/s
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Intervention assignment
Parallel
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Other design features
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Phase
Not Applicable
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Type of endpoint/s
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Statistical methods / analysis
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Recruitment
Recruitment status
Completed
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Data analysis
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Reason for early stopping/withdrawal
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Other reasons
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Date of first participant enrolment
Anticipated
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Actual
1/12/2011
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Date of last participant enrolment
Anticipated
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Actual
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Date of last data collection
Anticipated
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Actual
1/03/2013
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Sample size
Target
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Accrual to date
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Final
100
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Recruitment in Australia
Recruitment state(s)
NSW
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Recruitment hospital [1]
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Holroyd Private Hospital - Guildford
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Recruitment postcode(s) [1]
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2000 - Guildford
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Funding & Sponsors
Primary sponsor type
Other
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Name
The Sydney Hernia Specialists Clinic
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Address
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Country
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Other collaborator category [1]
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Other
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Name [1]
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University of Sydney
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Address [1]
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Country [1]
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Ethics approval
Ethics application status
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Summary
Brief summary
Since laparoscopic inguinal hernia was introduced in 1990, it has now become the most
commonly performed hernia repair in NSW. Traditionally this is done with 3 small incisions: a
2 cm incision under the navel for insertion of the camera and two 1 cm incisions below the
navel for insertion of trocars into which dissecting instruments are inserted to perform the
repair. Although this method has been shown to be relatively safe and efficient there are
reports of bowel and vascular injuries from the insertion of the smaller trocars which are
usually sharp. These can cause serious injuries.
Since 2009, a newer method of performing the key hole repair has been developed. This
involves placing a special single port under the navel via a 2-2.5cm incision and into which
3 blunt trocars are inserted. This negates the risks of injuries from sharp trocars. In
addition the fact that only a single incision is used this could potentially result in less
pain, reduced incidence of wound complications including infection and improved cosmetic
results.
However these potential advantages have not been proven in rigorous clinical studies as the
single port technique is still relatively new. It is hoped that this study will prove that
the single port technique is at least as effective and efficient as the conventional
technique in the cure of hernias and may have additional benefits as enumerated above.
Neither you nor your surgeon will know which procedure (three port or single port hernia
repair) until you are already asleep in the operating room and a random number selecting
process will automatically assign you to one procedure or the other. Sometimes it is not
possible to perform the single port safely in which case your procedure will be converted to
a three ports procedure.
All patients having surgical treatment of groin hernia at Holroyd Private Hospital are
subject to very careful assessment and study. All patients are requested to report
immediately if there are any problems. Any problems would normally be reported to your
treating surgeon who has primary responsibility for your care. Problems can be reported
directly to Holroyd Private Hospital. Any information in your medical records is subject to
stringent confidentiality requirements. The hospital is bound by the Australian Privacy
Council Charter as regards confidentiality and privacy.
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Trial website
https://clinicaltrials.gov/ct2/show/NCT01660048
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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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Hanh M Tran, MD, FRACS
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Address
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Sydney Hernia Specialists Clinic
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Country
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Phone
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Fax
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Email
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Contact person for public queries
Name
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Address
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Country
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Phone
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Fax
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Email
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Contact person for scientific queries
Summary Results
For IPD and results data, please see
https://clinicaltrials.gov/ct2/show/NCT01660048
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