Application of Rectus Sheath Block based-on Incision in Upper Abdominal Surgery
- Conditions
- Opioid Consumption
- Interventions
- Other: General anesthesiaProcedure: Subcostal TAPProcedure: Modified RSB
- Registration Number
- NCT04306159
- Brief Summary
General anesthesia combined subcostal transversus abdominis plane (TAP)or rectus sheath block (RSB)can significantly reduce the use of opiates in minimally invasive surgery.However, similar reduction was not observed in open abdominal surgery during perioperative period.Therefore, the investigators should try to improve the blocking methods to reduce the side effects of a large number of opiates. Based on the range and its analgesic effect of various nerve block is obviously related to the injection site of local anesthetics, this randomized controlled study hypothesized that modified RSB under the guidance of surgical incision may be more effective in inhibiting the harmful stimulation of surgery.
- Detailed Description
For abdominal cancer surgery with midline incision, subcostal transversus abdominis plane or rectus sheath block combined with general anesthesia was more effective in reducing pain scores and opioid consumption compared with general anesthesia alone. However, there was no statistically significant difference in supplementary fentanyl during operation. Besides adequate pain relief around incisions, blunting visceral traction response has also an important role in hemodynamic stability.With the evidences for a potential mechanism for the antinociceptive effects of propofol on visceral nociception and dexmedetomidine combined with oxycodone can provide good visceral analgesia, the investigators supposed that visceral nociception was well suppressed by adequate antinociceptive drugs. The propofol combination with dexmedetomidine may had significant effect on the reduction of the sympathoadrenergic tone with decrease of blood pressure and heart rate.
Recruitment & Eligibility
- Status
- COMPLETED
- Sex
- All
- Target Recruitment
- 126
- Aged 18-85 years
- Anesthesiologists (ASA) risk classification I to IV
- Scheduled to undergo midline incision of upper abdomen (From xiphoid to navel )
- Patient refusal
- Any contraindications to regional techniques (allergy to local anesthetics, infection around the site of the block, and coagulation disorder)
- History of analgesics dependence
- Any difficulty with communication
- Allergy to the study drugs
- Heat rate < 50 beats/minutes or II-III Atrioventricular block
- Previous open surgery
- Previous definite history of malignant tumor
- Who had an estimated intraoperative blood loss of more than 500 mL
Study & Design
- Study Type
- INTERVENTIONAL
- Study Design
- PARALLEL
- Arm && Interventions
Group Intervention Description General anesthesia General anesthesia Basal blood pressure and heart rate were recorded after midazolam administration of 0.02 mg/kg. Anesthesia was induced with sufentanil 0.4 μg/kg and propofol 2-2.5 mg/kg, IV route. An IV bolus of cisatracurium 0.1 mg/kg IV was given to facilitate tracheal intubation. Anesthesia was maintained with propofol 4-6 mg/kg/h combined dexmedetomidine 0.2 μg/kg/h(after 0.2 μg/kg/h loading dose within 15min)by bispectral index (BIS) 40-60 and additional bolus doses of remifentanil 0.2-0.5 μg/kg/min to keep arterial pressure values around 20% below baseline values. Sufentanil 0.1-0.2 μg/kg and flurbiprofen 100mg was administrated once the abdomen was closed, then a patient controlled analgesia pump was used. No RSB was performed. Subcostal TAP combined with General anesthesia Subcostal TAP After induction, TAP was performed. The transversus abdominis plane is imaged with the ultrasound probe obliquely on the upper abdominal wall, along the subcostal margin near the midline.The needle tip was advanced to the desired position where 20 mL 0.375%ropivacaine(Dexamethasone 5mg was added)were injected.The technique is repeated on the opposite side. Anesthesia method and management was same as general anesthesia group. Modified RSB combined with General anesthesia Modified RSB After induction, Modified RSB was performed based on midline incision-guided. The rectus muscle is imaged with the ultrasound probe in a transverse orientation below the xiphisternum and above the umbilicus.The needle tip was advanced to the two desired position where 10 mL ropivacaine 0.375% were injected causing hydrodissection of the rectus muscle away from the posterior rectus sheath.The technique is repeated on the opposite side.Anesthesia method and management was same as general anesthesia group.
- Primary Outcome Measures
Name Time Method Tumor recurrence rate 1-year after surgery Tumor recurrence rate after surgery
Opiate consumption From the beginning to the end of anesthesia,up to 6 hours. Remifentanil consumption
- Secondary Outcome Measures
Name Time Method The occurrence of cardiovascular or cerebrovascular events From the end of surgery to the time the patients discharge, up to 1 month. Incidence of cardiovascular or cerebrovascular adverse events
Opiate consumption From the end of anesthesia to 48 hours after surgery, up to 2 days. Sufentanil consumption
Pain scores 48 hours after surgery 1. Through visual analogue scale (from 0 to 10) to assess the degree of pain;
2. The number 0 means no pain and the number 10 means the most pain;
3. Patients with visual analogue scale greater than 3 points should have remedial analgesic drugs.Time for first to press pump Up to 2 days after surgery Time for first to press pump
Length of hospital stay From the end of surgery to the time the patients discharge, up to 1 month. Length of hospital stay
Mortality 1-year after surgery Mortality after surgery
Time of anal exsufflation Up to 7 days after surgery Time for first anal exsufflation
Delirium Up to 7 days after surgery Incidence of postoperative delirium
The occurrence of nausea and vomiting Up to 7 days after surgery Incidence of nausea and vomiting
Concentration of norepinephrine Time before anesthesia induction,immediately after incision,celiac exploration and immediately after closing the abdominal cavity. Concentration of norepinephrine during surgery
Concentration of epinephrine Time before anesthesia induction,immediately after incision,celiac exploration and immediately after closing the abdominal cavity. Concentration of epinephrine during surgery
Concentration of tumor necrosis factor-α Time before anesthesia induction,immediately after incision,celiac exploration and immediately after closing the abdominal cavity. Concentration of tumor necrosis factor-α during surgery
Concentration of interleukin-6 Time before anesthesia induction,immediately after incision,celiac exploration and immediately after closing the abdominal cavity. Concentration of interleukin-6 during surgery
Concentration of cortisol Time before anesthesia induction,immediately after incision,celiac exploration and immediately after closing the abdominal cavity. Concentration of cortisol during surgery
Trial Locations
- Locations (1)
The First Affiliated Hospital of Anhui Medical University
🇨🇳Hefei, Anhui, China