Evaluation of a New Technique to Fill the Defect Generated After Conservative Surgery in Breast Cancer (PROSILMA)

Fundació Institut de Recerca de l'Hospital de la Santa Creu i Sant Pau

Status: Completed

Conditions: Breast Conserving Surgery

Treatments: Device: Silicone prosthesis; Procedure: Usual practice

Study type: Interventional

Funder types: Other

Identifiers

NCT04092842

IIBSP-SIL-2017-70

Details and patient eligibility

About

The placement of a small silicone prosthesis in the partial defects generated by conservative breast cancer surgery improves the aesthetic result, compared to the usual surgical technique, in a safe and reproducible way and compatible with adjuvant treatments. It could also potentially improve the quality of life of patients

Full description

Conservative surgery in breast cancer is performed more than 50% of cases, however, aesthetic results are suboptimal, because reconstructive techniques are performed in less than 5% of them. Objective: To demonstrate that the placement of a silicone prosthesis in partial defects generated by breast cancer conservative surgery improves the aesthetic result, compared to the usual surgical technique, safely, reproducibly and compatible with adjuvant treatments.

Methodology: Prospective randomized clinical trial, controlled with blind evaluator. Inclusion criteria: Women with breast cancer candidates for conservative surgery. Intervention: In the cases the study technique will be carried out consisting in the filling of the defect with a silicone prosthesis of size adjusted to it (2-4cm). Controls: usual surgical procedure. Main result variable: aesthetic results (visual analog scale) according to the patient, surgeon and blind external evaluator. Secondary variables: surgical complications, local complications derived from adjuvant treatments, rate of local recurrence, rate of reintervention due to affected margins, behavior in mammographic follow-up, professional satisfaction and impact on quality of life.

Enrollment: 100 patients

Sex: Female

Ages: 18+ years old

Volunteers: No Healthy Volunteers

Inclusion criteria

• Women, over 18 years old, with breast cancer who attend breast pathology consultations at the Sant Pau Hospital in which conservative surgery is indicated.

Exclusion criteria

• Multicentric tumors
• Tumors larger than 5cm
• Locally advanced tumors (T4): Deep plane involvement or skin involvement
• Patients in stages IV (distance dissemination)
• Patients who need mastectomy
• Patients with disabilities or who do not understand the terms of the study or do not agree to participate in the study

Trial design

Primary purpose: Treatment

Allocation: Randomized

Interventional model: Parallel Assignment

Masking: Single Blind

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100 participants in 2 patient groups

Group intervention: Silicone prothesis

Experimental group

Description:

Breast cancer conservative surgery will be performed by removing the tumor according to the usual technique and then the defect generated will be filled with a silicone prosthesis of the same size. Said prosthesis will be covered with fat and subcutaneous cellular tissue and then the skin will be closed.

Treatment:

Device: Silicone prosthesis

Group control: Usual surgical technique

Active Comparator group

Description:

Breast cancer conservative surgery will be performed according to the usual surgical technique, that is, removing the tumor and covering the defect by mobilizing the breast tissue and then closing the skin.

Treatment:

Procedure: Usual practice