At a glance
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Ultrasound-Guided Modified Pectoral Plane (PECS II) Block Versus Midpoint Transverse Process to Pleura (MTP) Block for Postoperative Analgesia of Modified Radical Mastectomy
In Brief
A clinical study evaluating PECS II BLOCK and MTP BLOCK for Breast Neoplasm Female and Postoperative Pain Management. Completed, enrolled 88 participants across 1 site.
Detailed Summary
This randomized controlled study aims to compare the analgesic efficacy of the ultrasound-guided modified pectoral nerve block (PECS II) and the midpoint transverse process to pleura (MTP) block in female patients undergoing modified radical mastectomy (MRM). Postoperative pain intensity will be assessed using the Visual Analog Scale (VAS) over the first 24 hours, with additional evaluation of opioid consumption and complications.
Study Details
Timeline
Interventions
In the supine position, as described by Blanco et al., the ultrasound probe was placed transversely beneath the clavicle. After identifying the intermuscular plane between the pectoralis major and minor, 10 mL of 0.25% bupivacaine was injected. The probe was then repositioned laterally to identify the plane between the pectoralis minor and serratus anterior at the third to fourth ribs, where a further 10 mL of 0.25% bupivacaine was injected.
The block was performed with the patient in a seated position. The ultrasound probe was positioned parasagittally, approximately 3 cm lateral to the midline, at the T2 and T6 vertebral levels. A 22-gauge needle was advanced in-plane to the midpoint between the transverse process and pleura, and 10 mL of 0.25% bupivacaine was injected at each level. This protocol was adapted from the original technique described by Bhoi et al., with modifications in injection levels and volume.