R20 C50 Z87 G90 G57 T81 T87 Z98
Conditions
Interventions
Sponsors
Eligibility
Inclusion criteria
Inclusion criteria: • Women between the ages of 18 and 75 • Planned unilateral or bilateral SSM • Planned immediate reconstruction • No previous breast/thoracic wall surgery • Capacity to give consent
Exclusion criteria
Exclusion criteria: • Pre-existing peripheral neuropathy/neurodegenerative diseases • Poorly controlled diabetes mellitus/diabetic neuropathy • Previous radiation therapy to the chest/thoracic wall • Use of neurotoxic medications
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Change in cutaneous sensory function in the preserved skin envelope after skin-sparing mastectomy over a period of 12 months, measured by: Quantitative sensory testing (QST): Change in thresholds for thermal sensation (warm and cold sensation) and mechanical detection from preoperative to 12 months postoperative Clinical sensitivity mapping: Change in touch and pain sensation using standardized tests (monofilaments, sharp/dull discrimination) in defined breast regions Measurement times: Preoperatively (baseline) and 12 months postoperatively | — |
Secondary
| Measure | Time frame |
|---|---|
| Comparison of sensory recovery between different reconstruction techniques: Differences in sensory thresholds between different surgical approaches and reconstruction methods Identification of predictors of sensory recovery: Influence of age, BMI, nerve preservation, and surgical details on sensory recovery Correlation between subcutaneous fat thickness and sensory function Correlation of objective sensitivity measurements with patient-reported outcomes: Relationship between QST results and BREAST-Q scores Correlation with VAS scale for numbness and quality of life indices (SF-36/EQ-5D) Quantification of subcutaneous tissue changes: Change in subcutaneous fat thickness using high-resolution ultrasound (preoperative vs. postoperative) Assessment of fibrosis and tissue elasticity Influence of axillary surgery on sensory outcomes: Comparison of sensory recovery between ALND vs. SNB Influence of the surgical approach (intracavitary vs. separate incision) on postoperative sensitivity Exploratory endpoint: Correlation between subcutaneous tissue preservation and sensory recovery for the development of nerve-sparing surgical strategies All secondary endpoints will be assessed at the defined follow-up times (14-28 days, 6 months, optionally 12 months). | — |
Countries
Germany
Contacts
Klinik für Gynäkologie und Geburtshilfe, Universitätsklinikum Schleswig-Holstein, Campus Kiel