Geneva, March 23 -- International Clinical Trials Registry received information related to the study (ChiCTR2600120283) titled 'The influence of ultrasound-guided superior cervical ganglion block (SCGB) on postoperative sleep disorders in breast cancer patients' on March 11.

Study Type: Interventional study

Study Design: Parallel

Primary Sponsor: The First Affiliated Hospital of Wannan Medical College (Yijishan Hospital of Wannan Medical College)

Condition: Postoperative sleep disorders in breast cancer patients

Intervention: Trial group(SCGB):After anesthesia induction, the patient lies in a supine position, with a thin pillow placed under the shoulders and the head turned to the healthy side. The high-frequency probe was cross-c...