Geneva, March 20 -- International Clinical Trials Registry received information related to the study (ChiCTR2600119569) titled 'Effect of Ultrasound-guided Pectoral Interfascial Plane Type I and Type II Blocks Combined with Local Anesthesia on Early Postoperative Pain After Minimally Invasive Breast Rotational Excision: A Retrospective Cohort Study' on Feb. 28.

Study Type: Observational study

Study Design: Cohort study

Primary Sponsor: Shenshan Central Hospital, Sun Yat-sen Memorial Hospital, Sun Yat-sen University

Condition: breast lesion

Intervention: Pecs block group:None

Recruitment Status: Not Recruiting

Phase: Retrospective study

Date of First Enrollment: 2026-03-01

Target Sample Size: Pecs block group:49;Local anesth...