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Purpose:
To explore effects of ultrasound-guided quadratus lumborum block with compound lidocaine and esketamine on postoperative pain after colorectal surgery.
Poor post-surgical pain control is a leading factor that hinders the physicalrehabilitation, and causes acute cognitive impairment and chronic painsyndrome. Recently, the multimodal analgesia strategies to minimise opioidrelated side effects are highly desirable in open surgical procedures. Quadratus lumborum block is a novel technique. Although ropivacaine is most commonly used forthis technique, the analgesic duration remains not dissatisfied. Compared with ropivacaine, compound lidocaine injection has a better and longer analgesic activity since it contains menthol and ethanol with appropriate concentrations. However, whether compound lidocaine injection is efficiency in the quadratus lumborum block for abdominal surgery lacks investigations. Herein, we will evaluate the efficacy of ultrasound-guided quadratus lumborum block (USG-QLB) with compound lidocaine injection and esketamine for postoperative analgesia in patients undergoing colorectal surgery.
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| Label | Type | Description | Intervention Names |
|---|---|---|---|
| Normal saline in quadratus lumborum block | Placebo Comparator | After the induction of anesthesia, normal saline is used for bilateral quadratus lumborum block in a volume of 20 mL of each side. |
|
| Ropivacaine in quadratus lumborum block | Active Comparator | After the induction of anesthesia, 0.375% ropivacaine is used for bilateral quadratus lumborum block in a volume of 20 mL of each side. |
|
| Compound lidocaine in quadratus lumborum block | Active Comparator | After the induction of anesthesia, 0.6% compound lidocaine is used for bilateral quadratus lumborum block in a volume of 20 mL of each side. |
|
| Compound lidocaine and esketamine in quadratus lumborum block | Active Comparator | After the induction of anesthesia, 0.6% compound lidocaine and 0.4 mg/kg esketamine are used for bilateral quadratus lumborum block in a volume of 20 mL of each side. |
|
| Name | Type | Description | Arm Group Labels | Other Names |
|---|---|---|---|---|
| Normal saline | Drug | After the induction of anesthesia, normal saline is used for bilateral quadratus lumborum block in a volume of 20 mL of each side |
|
| Measure | Description | Time Frame |
|---|---|---|
| Postoperative opioid consumption | Each patient was administered analgesics using a PCA (Patient-controlled analgesia) pump containing opioid in normal saline after leaving PACU (Postanesthesia care unit). Opioid cumulative consumption is recorded for 72 hours postoperatively. | 72 hours after surgery |
| Measure | Description | Time Frame |
|---|---|---|
| Pain Score (NRS) | The pain score at rest or after movement was evaluated by pain 11-point numerical rating scale (NRS): 0 = no pain, 10= greatest imaginable pain. | 72 hours after surgery |
| Time of First Postoperative Analgesic Requirement |
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Inclusion Criteria:
Exclusion Criteria:
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| Name | Role | Phone | Extension | |
|---|---|---|---|---|
| Guolin Wang, MD | Contact | +86 15822855556 | wangguolinghad@hotmail.com |
| Name | Affiliation | Role |
|---|---|---|
| Guolin Wang, MD | Tianjin Medical University General Hospital | Study Director |
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| ID | Term |
|---|---|
| D010149 | Pain, Postoperative |
| ID | Term |
|---|---|
| D011183 | Postoperative Complications |
| D010335 | Pathologic Processes |
| D013568 | Pathological Conditions, Signs and Symptoms |
| D010146 | Pain |
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| ID | Term |
|---|---|
| D000077330 | Saline Solution |
| D012965 | Sodium Chloride |
| D000077212 | Ropivacaine |
| C000629870 | Esketamine |
| ID | Term |
|---|---|
| D000077324 | Crystalloid Solutions |
| D007552 | Isotonic Solutions |
| D012996 | Solutions |
| D004364 | Pharmaceutical Preparations |
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|
| Ropivacaine | Drug | After the induction of anesthesia, 0.375% ropivacaine is used for bilateral quadratus lumborum block in a volume of 20 mL of each side |
|
|
| Compound lidocaine | Drug | After the induction of anesthesia, 0.6% compound lidocaine is used for bilateral quadratus lumborum block in a volume of 20 mL of each side |
|
|
| Esketamine | Drug | After the induction of anesthesia, 0.4mg/kg esketamine is used for bilateral quadratus lumborum block |
|
|
First postoperative pain (NRS≥5) is initially controlled by titration of opioid.
| 1 hour after surgery |
| Total Dose of First Postoperative Analgesic Requirement | First postoperative pain (NRS≥5) is initially controlled by titration of opioid. | 1 hour after surgery |
| The incidence of Side Effects | The number of patients with side effects including nausea, vomiting, dizziness, headache, shivering, and pruritus is recorded for 72 hours postoperatively. | 72 hours after surgery |
| Apfel score | The Apfel score was recorded for evaluating risk for developing postoperative nausea and vomiting (PONV). | The 1 day before the surgery |
| Mean time until passage of flatus | Gastrointestinal motility was evaluated by recording mean time until passage of flatus | 96 hours after surgery |
| Diffusion area of local anesthetics after quadratus lumborum block | Diffusion area of local anesthetics after quadratus lumborum block was calculated under ultrasound assistance. | 30 minutes after quadratus lumborum block |
| Normalized Area of Hyperalgesia Around the Incision | The skin around the incision is stimulated in steps of 5 mm at intervals of 1 s starting outside of the hyperalgesic area in the direction of the incision. The distance from the incision to the first point where a 'painful', 'sore' or 'sharper' feeling occurred is measured and noted. This measurement is repeated at predefined radial lines around the incision. To eliminate the variable length of incision, this length is subtracted from the longer diameter leaving four radial distances from the end and from the middle of the incision. The normalized area of hyperalgesia is calculated by summing up the areas of the remaining four triangles measured by and Von Frey filament. | 72 hours after surgery |
| The level of cytokines in blood By ELISA kits | Blood is collected to measure the level of cytokines (such as IL-18, IL-17, IL-23 ) using ELISA kits. | 72 hours after surgery |
| The level of chemokines in blood By ELISA kits | Blood is collected to measure the level of chemokines (such as CXCL1, CCL7, CCL2) using ELISA kits. | 72 hours after surgery |
| D009461 | Neurologic Manifestations |
| D012816 | Signs and Symptoms |
| D002712 |
| Chlorides |
| D006851 | Hydrochloric Acid |
| D017606 | Chlorine Compounds |
| D007287 | Inorganic Chemicals |
| D017670 | Sodium Compounds |
| D000813 | Anilides |
| D000577 | Amides |
| D009930 | Organic Chemicals |
| D000814 | Aniline Compounds |
| D000588 | Amines |