Study of Breast Conserving Surgery Using Pectoralis Major Muscle Flap

Study of Breast Conserving Surgery Using Pectoralis Major Muscle Flap - Exploratory Study on Partial Breast Reconstruction Using Pectoralis Major Muscle Flap in Breast Cancer Surgery

Status

Recruiting

Phases

Unknown

Study type

Interventional

Source

JPRN

Registry ID

JPRN-UMIN000054943

Enrollment

Registered

2024-07-12

Start date

2024-07-12

Completion date

Unknown

Last updated

2026-06-29

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

breast cancer

Interventions

Pectoralis major muscle flap for partial breast reconstruction

Eligibility

Sex/Gender

Female

Inclusion criteria

Inclusion criteria: 1. Patients with primary breast cancer undergoing partial mastectomy at Nakagami Hospital from the approval of the ethics review to March 2026. 2. Patients for whom significant postoperative breast deformity is expected with partial mastectomy alone.

Exclusion criteria

Exclusion criteria: 1. Patients suspected of having pectoralis major muscle invasion based on preoperative MRI or CT scans. 2. Patients who desire full breast reconstruction with silicone implants in the future. 3. Patients with Poland syndrome or pectoralis major muscle defects due to trauma. 4. Patients with uncontrolled underlying diseases. 5. Patients deemed unsuitable by the attending physician.

Design outcomes

Primary

Measure	Time frame
Safety evaluation (adverse event incidence rate)	—

Countries

Japan

Contacts

Public ContactRyohei Katsuragi

Nakagami Hospital Brest surgery

katsuragi@nakagami.or.jp0989391300

Outcome results

None listed

Source: JPRN (via WHO ICTRP) · Data processed: Jul 3, 2026