Spots Global Cancer Trial Database for SPSIPB for Breast Cancer Surgery

Study Description

Brief Summary: Acute postoperative pain after breast cancer surgery is usually moderate to severe, and inadequate postoperative pain management can significantly increase perioperative analgesic consumption, prolong hospital stay, and even cause long-term persistent pain such as postmastectomy pain syndrome. A multimodal analgesic approach (NSAII, paracetamol, opioids, local infiltration, facial plane blocks and paravertebral and periparavertebral blocks) is recommended. Paravertebral block (PVB) is considered the gold standard analgesic method for breast surgery. However, PVB is an invasive block requiring advanced skills and deep injection in close proximity to the pleura, intercostal nerves, neuraxis, great vessels and intercostal neurovascular bundles. As a result, the ongoing risks of pneumothorax, neuraxial spread, hypotension and systemic toxicity preclude its routine use in the day surgery setting. Therefore, alternative blocks have been developed. Various regional techniques such as Serratus plan block (SPB), interpectoral/pectoroserratus blocks (PECS I/II), erector spina plan block (ESPB) and rhomboid intercostal plan block (RIB) have been used to relieve pain after breast surgery. However, local anesthetic distribution may be affected by the surgical incision in the chest muscles. ESPB can be performed from cervical to sacral vertebrae, but clinical, cadaveric and radiologic results are inconsistent. RIB provides hemithoracic analgesia; however, RIB does not cover the cranial aspect of the T2 dermatome. A meta-analysis reported that SPB effectively relieves acute postoperative pain, reduces nausea and vomiting, and improves perioperative anesthesia outcomes in breast surgery. In another study compared with placebo, it was reported that serratus plane block provided less pain at rest, but there was no significant difference in reducing postoperative opioid consumption. Serratus Posterior Superior Intercostal Plan Block is performed in the fascial plane between the serratus posterior superior muscle and intercostal muscles at the second and third costal level. SPSIB provides hemithoracic analgesia from the paraspinal region to the anteromedial region of the chest wall including the axillary region. In a case series of patients undergoing breast surgery, it was reported that the costal plane plays an important role in preventing pneumothorax, provides a natural barrier to the pleura, and may be a good choice for postoperative analgesia management as part of multimodal analgesia after breast surgery. In this study, the investigators aimed to observationally investigate the effect of serratus posterior superior intercostal plane block on postoperative opioid consumption in patients undergoing breast cancer surgery under general anesthesia.

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Eligibility

Minimum Age: 18 Years

Eligible Ages: ADULT, OLDER_ADULT

Sex: FEMALE

Healthy Volunteers: Yes

Locations

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