A Retrospective Multi-center Cohort Study Investigating Safety of Sentinel Lymph Node Biopsy in Clinical T3-4c Breast Cancer

A Retrospective Multi-center Cohort Study Investigating Safety of Sentinel Lymph Node Biopsy in Clinical T3-4c Breast Cancer - A Retrospective Multi-center Cohort Study Investigating Safety of Sentinel Lymph Node Biopsy in Clinical T3-4c Breast Cancer

Status

Active, not recruiting

Phases

Unknown

Study type

Observational

Source

JPRN

Registry ID

JPRN-UMIN000056630

Enrollment

1000

Registered

2025-01-05

Start date

2022-08-30

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

None listed

Eligibility

Sex/Gender

All

Inclusion criteria

Inclusion criteria: cases of cT3-4a-cN0M0 breast cancer who underwent radical surgery at the institution between January 1, 2006 and December 31, 2016

Exclusion criteria

Exclusion criteria: 1. cases in which axillary surgery (SNB or Ax) was not performed 2. cases of positive sentinel node metastasis for which an Ax was omitted 3. cases in which the sentinel node could not be identified and axillary lymph node sampling was performed 4. cases with a history of breast cancer before the diagnosis of cT3-4a-cN0 breast cancer (heterochronic breast cancer), excluding noninvasive ductal carcinoma of the breast 5. cases in which contralateral breast cancer was diagnosed at the same time as the diagnosis of cT3-4a-cN0 breast cancer (contralateral contralateral breast cancer), excluding noninvasive ductal carcinoma of the breast

Design outcomes

Primary

Measure	Time frame
recurrence free survival	—

Countries

Japan

Contacts

Public ContactSayaka Kuba

Nagasaki University Graduate School of Biomedical Sciences Department of Surgery

sayaka20041123@yahoo.co.jp0958197316

Outcome results