TAP-catheter With Intermittent Bolus Injections of Bupivacain, an Alternative to Epidural Catheter Infusion After Colon Surgery?
TAP-catheter With Intermittent Bolus Injections of Bupivacain, an Alternative to Epidural Catheter Infusion After Colon Surgery?
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.
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.
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