Efficacy of an Anterior Quadratus Lumborum Block vs. a TAP-block for Inguinal Hernia Repair
- Conditions
- Inguinal HerniaPain, Postoperative
- Interventions
- Registration Number
- NCT03023462
- Lead Sponsor
- Ostfold Hospital Trust
- Brief Summary
One of the most common complications after hernia repair is postoperative and chronic pain. TAP (transverse abdominis plain) block is a recommended multimodal method of reducing postoperative pain in laparoscopic and open inguinal hernia repair. The objective of this study is to determine whether the use of a perioperative echo guided unilateral TAP block has a superior effect on postoperative pain after laparoscopic inguinal repair compared to an anterior Quadratus Lumborum Block with a long acting local anesthetic.
- Detailed Description
One of the most common complications after hernia repair is postoperative and chronic pain. Postoperative pain is an expected but undesirable effect after an operation, which can result in an prolonged hospital stay or longer time to return fully to normal daily activities. There are indications that an insufficient treatment of postoperative pain is a risk factor for persistent or chronic pain after open and laparoscopic inguinal hernia repair (Berndsen FH 2007) (Nienhuijs SW 2005).
TAP (transverse abdominis plain) block is a recommended multimodal method of reducing postoperative pain in laparoscopic and open surgery (El-Dawlatly AA 2009; 102). TAP block (Meyer A 2015) and an anterior Quadratus Lumborum Block (Adhikary, S.D. 2017) are both recommended for inguinal hernia repair. The objective of this study is to determine, whether the use of a perioperative echo guided unilateral TAP block has a superior effect on postoperative pain after laparoscopic inguinal repair compared to the anterior Quadratus Lumborum Block with a long acting local anesthetic. There will be no further analysis in this study regarding the evidence of open hernia inguinal repair and chronic pain.
The primary endpoint:
Opioid consumption measured in orale morphine equivalents four hours postoperative.
The secondary endpoints:
Opoioid consumption measured in orale morphine equivalents after 24 hours, 48 hours and seven days postoperative.
Postoperative nausea and vomiting measured on a NRS scale 0-3 at timepoints 1,2,3 hours, 24 hours, 48 hours and 7 days. Sedation scores measured on a NRS scale 0-3 at timepoints 1,2,3 hours, 24 hours, 48 hours and 7 days. .
There will be conducted a telephone interview by a blinded study nurse at 24 h, 48 h and 7 days, interviewing the patients as to their NRS score, nausea, sedation, level of activity and satisfaction with their overall treatment.
Power and Sample Size Calculator A pilot consisting of 12 patients was performed. The patients recieved a TAP block before a elective laparoscopic inguinal hernia repair. The mean oral morphine equivalents after four hours postoperative was 8.75 mg and the standard deviation 5.93 mg. With a significant clinical difference of 50%,an α = 0,05 and an effect size of 80% (β = 0,2) the total sample size is 60 patients with 30 patients in each group.
Premedication: Paracetamol by weight (2 grams (g)\>70 kilos (kg) \<70 years, 1,5 g \<70 kg \>70 years, 1 g \<50 kg) , Diclofenac by weight (100 milligrams (mg) \>70 kg \<70 years, 50 mg \<70 kg \>70 years).
General anaesthesia: TCI (Target Control Infusion = Anesthesia protocol): Propofol and Remifentanil Surgical procedure: Laparoscopic inguinal hernia repair. 5 mg/ml 10 ml Ropivacaine in the ports peroperatively.
Postoperatively:
* Oral paracetamol 1000 mg every 6 h
* In case of insufficient analgesia (NRS≥4) oxycodon 2-5 mg will be administered by a postoperative nurse.
* When nausea and vomiting occurs postoperatively, ondansetron 4 mg IV administers as the drug of first choice followed by droperidol 0,625 mg IV if the nausea/vomiting persists.
Recruitment & Eligibility
- Status
- COMPLETED
- Sex
- All
- Target Recruitment
- 60
Not provided
Not provided
Study & Design
- Study Type
- INTERVENTIONAL
- Study Design
- PARALLEL
- Arm && Interventions
Group Intervention Description Transmuscular Quadratus lumborum Block Oksykodonhydroklorid A single shot unilateral transmuscular Quadratus lumborum Block with Ropivacaine 7,5 mg/ml, 20 ml Transmuscular Quadratus lumborum Block Ondansetron and Droperidol A single shot unilateral transmuscular Quadratus lumborum Block with Ropivacaine 7,5 mg/ml, 20 ml TAP Block Oksykodonhydroklorid A single shot unilateral TAP block with Ropivacaine 7,5 mg/ml, 20 ml TAP Block Ondansetron and Droperidol A single shot unilateral TAP block with Ropivacaine 7,5 mg/ml, 20 ml Transmuscular Quadratus lumborum Block Ropivacaine A single shot unilateral transmuscular Quadratus lumborum Block with Ropivacaine 7,5 mg/ml, 20 ml TAP Block Ropivacaine A single shot unilateral TAP block with Ropivacaine 7,5 mg/ml, 20 ml
- Primary Outcome Measures
Name Time Method Opioid consumption measured as orale morphine equivalents. 0 - 4 hours Differences in opioid consumption after four hours.
- Secondary Outcome Measures
Name Time Method Postoperative nausea and vomiting 0 - 7 days postoperative. Nausea is measured by a NRS score 0-3 at the timepoints 1,2,3 hours, 24 hours, 48 hours and 7 days.
Sedation scores 0 - 7 days postoperative. Sedation is measured by a NRS score 0-3 at the timepoints 1,2,3 hours, 24 hours, 48 hours and 7 days.
Opioid consumption measured in orale morphine equivalents. 4 hours- 7 days postopertive. Opioid consumption measured at 24 hours, 48 hours and seven days.
Trial Locations
- Locations (1)
Ostfold Hospital Trust, Moss
🇳🇴Moss, Ostfold, Norway