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Transversus Abdominis Plane Catheter: a Study of Method

This study has been completed.
University of Aarhus
Information provided by (Responsible Party):
Nils Bjerregaard, Aalborg Hospital Identifier:
First received: July 13, 2011
Last updated: January 5, 2012
Last verified: January 2012

Major abdominal surgery is associated with postoperative pain. Transversus Abdominis Plane(TAP) block has been shown to reduce pain and opioid-requirements after abdominal surgery. However a single block has a short effect of up to 12 hours depending on the type local-anesthetics used.

With this study we wish to investigate the possibilities to place a TAP-catheter in order to prolong the the effect of the TAP-block by giving repeatedly bolus-injections in the TAP catheter and to study the pain and the opioid requirements of patients undergoing elective colon-resection when given a TAP-catheter preoperatively.

Our hypothesis is that it is practical and technical possible to place bilateral TAP-catheters pre-operatively and that pain and opioid-requirements will be low.

Condition Intervention
Postoperative Pain Procedure: Placing bilateral TAP-catheters preoperatively Drug: Bupivacain 2.5 mg/ml with epinephrine bolus in TAP-catheters

Study Type: Interventional
Study Design: Intervention Model: Single Group Assignment
Masking: None (Open Label)
Primary Purpose: Supportive Care
Official Title: TAP-catheter With Intermittent Bolus Injections of Bupivacain, an Alternative to Epidural Catheter Infusion After Colon Surgery?

Resource links provided by NLM:

Further study details as provided by Nils Bjerregaard, Aalborg Hospital:

Primary Outcome Measures:
  • Postoperative Pain Using Numerical Rating Scale (NRS) 0-10 [ Time Frame: 0-36 hours postoperative ]

    NRS is a pain score and the score can vary between 0 and 10 by which 0 means no pain and 10 equals the worst possible pain.

    NRS was evaluated at the time 0, 1, 2, 4, 8 , 12, 18 , 24 and 36 hours after arriving in the post anesthesia care unit at rest and during coughing.

Secondary Outcome Measures:
  • Opioid Requirements Postoperative [ Time Frame: 48 hours from arriving in the post anesthesia care unit. ]
    Supplementary opioid requirements for the first 48 hours from arriving in the post anesthesia care unit. Results are total opioid-requirements for the first 48 hours. Way of administration was intravenous in all but 6 administrations. If given orally, a 1:3 ratio was used for conversion from oral to intravenous morphine.

Enrollment: 15
Study Start Date: September 2010
Study Completion Date: June 2011
Primary Completion Date: June 2011 (Final data collection date for primary outcome measure)
Arms Assigned Interventions
Each patient receives bilateral TAP-catheters preoperatively.
Procedure: Placing bilateral TAP-catheters preoperatively
Place bilateral TAP-catheters preoperatively and give repeated boluses of local analgetics in order to treat postoperative pain after colon-surgery.
Other Name: Bilateral TAP-catheter
Drug: Bupivacain 2.5 mg/ml with epinephrine bolus in TAP-catheters
Intermittent boluses of Bupivacain 2.5 mg/ml with epinephrine, 20 ml in each catheter every 12 hours for the first 2 postoperative days.

Detailed Description:

Postoperative pain is a major challenge in the work of anesthesia. Epidural catheter is the golden standard for postoperative pain management after major abdominal surgery. However a number of patient have absolute or relative contraindication to the placement of an epidural catheter. It is therefore necessary to find a good alternative to epidural catheter.

Transversus abdominis plane(TAP) block has been shown to provide analgesia of the abdominal wall and reduce opioid-requirements and pain after abdominal surgery.

However the effect of a TAP block is limited to the time of efficacy of the local analgesic used. Placing a TAP-catheter in order to prolong the effect of the TAP-block by repeatedly bolus-injections in the TAP-catheters has only been sporadically described and so far never investigated in a systematic way.

We will investigate the practical and technical possibility to place bilateral ultrasound-guided TAP-catheters pre-operatively on patients undergoing elective colon-resection. Further more we will evaluate the pain and opioid-requirement postoperatively.


Ages Eligible for Study:   18 Years and older   (Adult, Senior)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   No

Inclusion Criteria:

  • elective open colon-resection
  • adult
  • written and informed consent

Exclusion Criteria:

  • re-operation within the first 48 hours
  • need for sedation and ventilator-support postoperatively
  • accidental removal of catheter within the first 24 hours
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Please refer to this study by its identifier: NCT01395043

departement of anesthesiology, Aalborg University Hospital
Aalborg, Region Nordjylland, Denmark, 9000
Sponsors and Collaborators
Aalborg Universitetshospital
University of Aarhus
Study Chair: Bodil Rasmussen, PhD departement of anesthesiology, Aalborg Hospital
  More Information

Responsible Party: Nils Bjerregaard, Departement of anesthesia, Aalborg Hospital Identifier: NCT01395043     History of Changes
Other Study ID Numbers: N-20100001
Study First Received: July 13, 2011
Results First Received: October 6, 2011
Last Updated: January 5, 2012

Keywords provided by Nils Bjerregaard, Aalborg Hospital:
Transversus Abdominis Plane catheter
TAP catheter

Additional relevant MeSH terms:
Pain, Postoperative
Neurologic Manifestations
Nervous System Diseases
Postoperative Complications
Pathologic Processes
Signs and Symptoms
Epinephryl borate
Anesthetics, Local
Central Nervous System Depressants
Physiological Effects of Drugs
Sensory System Agents
Peripheral Nervous System Agents
Adrenergic alpha-Agonists
Adrenergic Agonists
Adrenergic Agents
Neurotransmitter Agents
Molecular Mechanisms of Pharmacological Action
Adrenergic beta-Agonists
Bronchodilator Agents
Autonomic Agents
Anti-Asthmatic Agents
Respiratory System Agents
Vasoconstrictor Agents processed this record on August 18, 2017