Bilevel Erector Spinae Plane Block Versus Pecto-serratus Block for Analgesia in Modified Radical Mastectomy in Cancer Surgery
试验速览
- 阶段
- 不适用
- 状态
- 招募中
- 发起方
- 入组人数
- 60
- 试验地点
- 1
- 主要终点
- Total post-operative morphine consumption.
研究概览
简要总结
Breast cancer remains the most frequently diagnosed cancer and a major cause of cancer-related mortality among women worldwide. Modified radical mastectomy (MRM), a common surgical procedure for breast cancer, is associated with significant postoperative pain, which may delay recovery and contribute to the development of chronic postmastectomy pain syndrome (PMPS). To address this, regional anesthesia techniques have been increasingly incorporated into multimodal analgesia strategies to reduce opioid consumption and enhance patient outcomes. Interfascial plane blocks, in particular, offer safe and effective analgesia under ultrasound guidance. The erector spinae plane block (ESPB), first described in 2016, involves injection of local anesthetic deep to the erector spinae muscle and may spread to the paravertebral space, providing both somatic and visceral analgesia. A bilevel approach may enhance dermatomal coverage. Meanwhile, the pectoserratus plane block (PSPB), which combines PECS II and serratus anterior blocks, targets nerves of the anterior and lateral chest wall and has shown efficacy in breast surgery
详细描述
Breast cancer is the most common diagnosed malignancy among females and the 5th cause of cancer-related deaths with an estimated number of 2.3 million new cases and 685,000 deaths worldwide in 2020.
Different modalities are used for management of breast cancer including surgery, radiation therapy (RT), chemotherapy (CT), endocrine (hormone) therapy (ET), and targeted therapy. Modified Radical Mastectomy (MRM) is one of the main modalities of breast cancer treatment. It accounts for 31% of all breast surgeries. It has been reported that 40% of the females complain from moderate-to-severe pain in the immediate post-operative period after breast cancer surgery.
Acute post-mastectomy pain can cause adverse impacts on the patients as delayed discharge from post-operative recovery area, impairs pulmonary and immune functions, increases risk of ileus, thromboembolism, myocardial infarction and may lead to increased length of hospital stay. It is also an important factor leading to the development of chronic post mastectomy pain syndrome (PMPS) in almost half of the patients.
Various regional anesthetic techniques have been described for postoperative pain relief after mastectomy, for example, thoracic epidural anesthesia, intercostal nerve block, paravertebral block, serratus anterior plane block, and pectoral nerve I and II blocks. All of them offer satisfactory pain relief after mastectomy.
The erector spinae plane block (ESPB), first described in 2016, involves injection of local anesthetic deep to the erector spinae muscle and may spread to the paravertebral space, providing both somatic and visceral analgesia. A bilevel approach may enhance dermatomal coverage. Meanwhile, the pectoserratus plane block (PSPB), which combines PECS II and serratus anterior blocks, targets nerves of the anterior and lateral chest wall and has shown efficacy in breast surgery
研究设计
- 研究类型
- Interventional
- 分配方式
- Randomized
- 干预模型
- Parallel
- 主要目的
- Prevention
- 盲法
- Single (Outcomes Assessor)
入排标准
- 年龄范围
- 18 Years 至 65 Years（Adult, Older Adult）
- 性别
- Female
- 接受健康志愿者
- 否
入选标准
- •Breast cancer female patients.
- •ASA class II and III.
- •Age ≥ 18 and ≤ 65 Years.
- •Body mass index (BMI): > 20 kg/m2 and < 35 kg/m
- •Type of surgery; elective breast cancer surgery modified radical mastectomy combined with axillary dissection.
排除标准
- •Patient refusal.
- •Age <18 years or >65 years.
- •BMI <20 kg/m2 and >35 kg/m
- •Major medical conditions.
- •Pregnancy or lactation.
研究组 & 干预措施
Ultrasound guided bilevel Erector spinae plane block (ESPB)
Before induction of general anesthesia, patients will be positioned in the sitting position leaning forward. The 3rd and 5th vertebral spinous processes will be first identified then the block area will be adequately sterilized and draped. The block will be done as needed using either a high frequency linear probe (6- 13 MHz) or a curved (2-5 MHz) probe of . The probe used to identify the hyperechoic transverse process shadow at approximately 1.5- 2 cm distance from the spinous process deep to the trapezius, rhomboid major, and erector spinae muscles at 3rd, 5th vertebrae. Then, an 18-gauge epidural needle will be inserted in a cephalad-to-caudad direction to reach the transverse process deep to the erector spinae muscle. Correct positioning of the needle will be confirmed through real time visualization of 2 ml saline hydro dissection at both 3rd and 5th vertebrae.20 ml of bupivacaine 0.25% will be injected at each level.
干预措施: Ultrasound guided bilevel Erector spinae plane block (ESPB) (Procedure)
Ultrasound guided Pectoserratus Block (PSPB)
For the PECS block, the patient's arm is abducted 90° and externally rotated. The ultrasound probe is positioned beneath the lateral third of the clavicle to locate the axillary vessels and subclavian artery. The probe is moved distally and laterally to the second and third rib space to identify the pectoralis major. A 20G, 100 mm echogenic needle is inserted between the pectoralis muscles; 15 mL of local anesthetic (LA) is administered in 5 cc increments. The probe is then shifted distally and laterally to the third and fourth rib space. The fascial plane between the pectoralis minor and serratus anterior muscles is identified , and 10 mL of LA is injected in 5 cc increments. For the SAPB, the probe is placed on the midaxillary line at the fifth rib level to visualize the serratus anterior and latissimus dorsi. A 22G spinal needle is inserted in-plane at a 45° angle toward the fifth rib. Saline (0.5-1 mL) is injected to open the plane, and 15 mL of 0.25% LA is administered
干预措施: Ultrasound guided Pectoserratus Block (Procedure)
control group
the patients of this group received general anesthesia without regional plane block
结局指标
主要结局
Total post-operative morphine consumption.
时间窗: 24 hours after the surgery
The total 24-hour morphine consumption will be recorded for every patient post operative.
次要结局
- Total intra-operative fentanyl consumption(2-3 hours (Surgery time) surgery)
- 1st time opioids requested post-operative.(24 hours after the surgery)
- Changes and stability in Mean Arterial Blood Pressure (MAP)(every 15 minutes during the surgery then at 1, 2, 4, 8, 12, 16, 20 and 24 hours postoperatively)
- Changes and stability in Heart Rate (HR)(every 15 minutes during the surgery then at 1, 2, 4, 8, 12, 16, 20 and 24 hours postoperatively)
- Pain scores using Visual analogue score(24 hours after the surgery)
研究者
Ayman Sharawy Abdel Rahman Aboul Nasr
Principal investigator
National Cancer Institute, Egypt