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Trial details imported from

For full trial details, please see the original record at

Registration number
Ethics application status
Date submitted
Date registered
Date last updated

Titles & IDs
Public title
Analgesic Efficacy of Local Anesthetic Transversus Abdominis Plane (TAP) Blocks in Abdominal Surgery
Scientific title
Efficacy of Local Anesthetic TAP Blocks in Providing Pain Relief Following Laparoscopic and Open Abdominal Surgery
Secondary ID [1] 0 0
Secondary ID [2] 0 0
Universal Trial Number (UTN)
Trial acronym
Linked study record

Health condition
Health condition(s) or problem(s) studied:
Pain 0 0
Condition category
Condition code

Study type
Description of intervention(s) / exposure
Treatment: Surgery - US-Guided Ropivacaine TAP Block

Active Comparator: 1 - Open Laparotomy Arm: All patients enrolled in the study who are undergoing elective open laparotomy surgery.

Active Comparator: 2 - Laparoscopic Arm: All patients enrolled in the study who are undergoing elective laparoscopic abdominal surgery.

Treatment: Surgery: US-Guided Ropivacaine TAP Block
Bilateral injection of local anaesthetic into the Transversus Abdominis plane, guided by ultrasound.

Intervention code [1] 0 0
Treatment: Surgery
Comparator / control treatment
Control group

Primary outcome [1] 0 0
mg/kg of morphine equivalent used by patients post operatively.
Timepoint [1] 0 0
From operation until discharge.
Secondary outcome [1] 0 0
Lung Function (spirometry), including FVC, FEV1 and PEFR
Timepoint [1] 0 0
24, 48 and 72 hours postoperatively
Secondary outcome [2] 0 0
Visual Analogue Scale for pain at rest, deep breathing and coughing.
Timepoint [2] 0 0
24, 48 and 72 hours postoperatively

Key inclusion criteria
- All patients aged 18 and over undergoing elective open or laparoscopic colorectal
surgery performed by the participating surgeons within the study period will be
considered for the trial.
Minimum age
18 Years
Maximum age
No limit
Both males and females
Can healthy volunteers participate?
Key exclusion criteria
- History of adverse reaction to Ropivicaine or similar drug.

- Inability or refusal to give consent

- Coagulopathic

- Severe renal impairment

- Aged <18 years

Study design
Purpose of the study
Supportive Care
Allocation to intervention
Randomised controlled trial
Procedure for enrolling a subject and allocating the treatment (allocation concealment procedures)
Methods used to generate the sequence in which subjects will be randomised (sequence generation)
Masking / blinding
Blinded (masking used)
Who is / are masked / blinded?
The people receiving the treatment/s
The people administering the treatment/s
The people assessing the outcomes
The people analysing the results/data
Intervention assignment
Other design features
Phase 1
Type of endpoint(s)
Statistical methods / analysis

Recruitment status
Data analysis
Reason for early stopping/withdrawal
Other reasons
Date of first participant enrolment
Date of last participant enrolment
Date of last data collection
Sample size
Accrual to date
Recruitment in Australia
Recruitment state(s)
Recruitment hospital [1] 0 0
John Hunter Hospital - New Lambton
Recruitment hospital [2] 0 0
Newcastle Private Hospital - New Lambton
Recruitment hospital [3] 0 0
Private Medical Suites - New Lambton
Recruitment hospital [4] 0 0
Mater Misericordiae Hospital - Waratah
Recruitment postcode(s) [1] 0 0
2305 - New Lambton
Recruitment postcode(s) [2] 0 0
2298 - Waratah

Funding & Sponsors
Primary sponsor type
Hunter Colorectal Research

Ethics approval
Ethics application status

Brief summary
The aim of the study is to establish the efficacy of local anaesthetic TAP (transversus
abdominis plane) blocks in providing pain relief in the first 24hrs following open or
laparoscopic elective abdominal colorectal operations.

TAP blocks involve the injection of local aesthetic (ropivicaine) into the transversus
abdominis plane in the abdominal wall. This injection takes place after induction of
anaesthesia, but before the commencement of surgery. TAP blocks have been proposed as a
potential safer alternative to epidural anaesthesia. The blocks have been extensively used in
the Hunter New England system over the last 18 months. As yet there is no clear evidence for
there efficacy, hence the need for this trial.

This trial would establish the efficacy of this practice. If the technique proves effective
it could be widely used and provide a simpler method of managing post operative pain.
Trial website
Trial related presentations / publications
Public notes

Principal investigator
Name 0 0
Brian Draganic, B.Med.,B.Med.Sci.(Hons),FRACS
Address 0 0
Hunter Colorectal Research
Country 0 0
Phone 0 0
Fax 0 0
Email 0 0
Contact person for public queries
Name 0 0
Address 0 0
Country 0 0
Phone 0 0
Fax 0 0
Email 0 0
Contact person for scientific queries

Summary results
Other publications