Pain
Conditions
Keywords
Rectus sheath block, Single port laparoscopy
Brief summary
Rectus sheath block is effective in reducing pain in the peri-umbilical region, and the use of ultrasonography is recommended to perform the block at the precise location. Recently, intra-operative rectus sheath block has also been introduced without the aid of ultrasonography. However, no study has not yet compared the analgesic effects of these two different approaches (ultrasonography-guided vs direct surgical). Thus, the aim of our study is to compare the effect of ultrasonography-guided and direct-surgical rectus sheath block after single-port access laparoscopy in benign ovary cyst patients.
Detailed description
This is a randomized, prospective study comparing the analgesic effects of ultrasonography-guided and direct-surgical rectus sheath block after single-port access laparoscopy in benign ovary cyst patients. Patients will be randomly divided into 3 groups based on the procedure: control group, ultrasonography group and direct injection group. Each group consists of 30 patients. * Control group Normal saline 10mL will be injected under ultrasonography guidance into the right, left rectus sheath at the end of the operation before emergence from general anesthesia. * Ultrasonography group Local anesthetic (Ropivacaine 0.75% 10 mL) will be injected under ultrasonography guidance into the right left rectus sheath at the end of the operation before emergence from general anesthesia. * Direct injection group Local anesthetic (Ropivacaine 0.75% 10 mL) will be injected under direct visualization into the right, left rectus sheath at the end of the operation before emergence from general anesthesia. Analgesic efficiency will be assessed using the VAS (visual analogue scale) pain scale and the total amount of self-administered fentanyl via PCA (patient controlled analgesia) devices at multiple time scales (1, 6, 10, 24 and 48 hours after surgery). We will also compare the incidence of fentanyl complications, such as nausea, vomiting, pruritus and dizziness
Interventions
PROCEDURERectus sheath block
Local anesthetics (Ropivacaine 0.75% 10ml) or normal saline (10ml) will be injected in the rectus sheath via different methods: 1. Control group Normal saline 10mL will be injected under ultrasonography guidance into the right, left rectus sheath at the end of the operation before emergence from general anesthesia. 2. Ultrasonography group Local anesthetic (Ropivacaine 0.75% 10 mL) will be injected under ultrasonography guidance into the right left rectus sheath at the end of the operation before emergence from general anesthesia. 3. Direct injection group Local anesthetic (Ropivacaine 0.75% 10 mL) will be injected under direct visualization into the right, left rectus sheath at the end of the operation before emergence from general anesthesia.
DRUGRopivacaine
Local anesthetics (Ropivacaine 0.75% 10ml) or normal saline (10ml) will be injected in the rectus sheath via different methods: 1. Control group Normal saline 10mL will be injected under ultrasonography guidance into the right, left rectus sheath at the end of the operation before emergence from general anesthesia. 2. Ultrasonography group Local anesthetic (Ropivacaine 0.75% 10 mL) will be injected under ultrasonography guidance into the right left rectus sheath at the end of the operation before emergence from general anesthesia. 3. Direct injection group Local anesthetic (Ropivacaine 0.75% 10 mL) will be injected under direct visualization into the right, left rectus sheath at the end of the operation before emergence from general anesthesia.
OTHERNormal saline
Local anesthetics (Ropivacaine 0.75% 10ml) or normal saline (10ml) will be injected in the rectus sheath via different methods: 1. Control group Normal saline 10mL will be injected under ultrasonography guidance into the right, left rectus sheath at the end of the operation before emergence from general anesthesia. 2. Ultrasonography group Local anesthetic (Ropivacaine 0.75% 10 mL) will be injected under ultrasonography guidance into the right left rectus sheath at the end of the operation before emergence from general anesthesia. 3. Direct injection group Local anesthetic (Ropivacaine 0.75% 10 mL) will be injected under direct visualization into the right, left rectus sheath at the end of the operation before emergence from general anesthesia.
Sponsors
Chungnam National University Hospital
Study design
Allocation
RANDOMIZED
Intervention model
SINGLE_GROUP
Primary purpose
TREATMENT
Masking
NONE
Eligibility
Sex/Gender
FEMALE
Age
20 Years to 70 Years
Healthy volunteers
No
Inclusion criteria
1. Patients scheduled for a single port laparoscopic surgery at Chung Nam University hospital due to benign tumor of the ovary or the fallopian tube 2. Between age of twenty to seventy 3. Patients with a physical rating of 1 or 2 according to the American Anesthesiology guidelines 4. Patients who have not had laparoscopic surgery within two months
Exclusion criteria
1. Hysterectomy via single port laparoscopic surgery 2. Patients with chronic pelvic pain 3. Abdominal pain of unknown origin 4. Suspected malignant tumor 5. Diagnosed with malignant tumor of any origin 6. Patients currently taking psychiatric medicine 7. Pregnancy 8. Patients with a history of hypersensitivity to amide type local anesthetics 9. Patients with a history of hypersensitivity to opioid 10. Risk of bleeding 11. Unable to comprehend or does not agree to the consent form
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| The intensity of pain as assessed by Dose of fentanyl(opioid) | within 24 hours of surgery | Dose of fentanyl(opioid) self-administered by the patients within 24 hours of surgery |
Secondary
| Measure | Time frame | Description |
|---|---|---|
| Incident rate of side effects of fentanyl | within 24 hours of surgery | Incident rate of side effects of fentanyl including nausea and vomiting by the patients within 24 hours of surgery |
Contacts
Primary ContactHeon Jong Yoo
Outcome results
None listed