Conditions: Breast Cancer
Keywords: stage I breast cancer stage II breast cancer male breast cancer
Allocation: NA | Intervention model: SINGLE_GROUP
Enrollment: 39
Healthy volunteers: no

Brief summary:
RATIONALE: Diagnostic procedures, such as thoracoscopic sentinel lymph node biopsy, may help find breast cancer that has spread to lymph nodes between the breasts. It may also help doctors plan the best treatment.

PURPOSE: This clinical trial is studying how well thoracoscopic sentinel lymph node biopsy finds sentinel lymph nodes that are located between the breasts in patients with stage I or stage II breast cancer.

Detailed description:
OBJECTIVES:

* Determine the occurrence rate of internal mammary sentinel lymph nodes in patients with medially or centrally located stage I or II breast cancer.
* Determine the safety, feasibility, and success rate of thorascopic internal mammary sentinel lymph node biopsy in these patients.
* Determine the rate of metastatic disease in internal mammary sentinel lymph nodes obtained thoracoscopically in these patients.

OUTLINE: Patients undergo standard axillary sentinel lymph node dissection during surgery (i.e., lumpectomy or mastectomy). Patients receive a radioactive tracer (i.e., technetium Tc 99m sulfur colloid) and isosulfan blue by peritumoral injection for identification of the axillary and internal mammary sentinel lymph nodes (IMSLN). Identified axillary sentinel lymph nodes are dissected. Identified IMSLNs are removed through the lumpectomy/mastectomy incision, if accessible. If they are not accessible, patients undergo thorascopic IMSLN biopsy to remove the nodes.

All removed sentinel lymph nodes (axillary or internal mammary) are examined for gross and microscopic carcinoma for future therapy planning.

PROJECTED ACCRUAL: A total of 50 patients will be accrued for this study.

Arms:
arm 1: None

Interventions: intervention 1: Isosulfan blue intervention 2: Axillary Lymph Node Dissection intervention 3: Surgery intervention 4: Sentinel Lymph Node Biopsy intervention 5: Thoracoscopic Surgery intervention 6: Technetium Tc 99m Sulfur Colloid
Intervention descriptions: intervention 1: Administered pre-surgery; injection of 2 cc of Isosulfan Blue in four equal aliquots of 0.5 cc as routinely done for the axillary sentinel node procedure. intervention 2: Axillary Lymph Node Dissection intervention 3: The surgery will be performed under general anesthesia with a single lumen endo-tracheal tube. The patient will be laid in a semi decubitus position on the opposite side with the ipsilateral arm bent over the head and attached to an arm rest. intervention 4: Sentinel Lymph Node Biopsy intervention 5: Performed only if internal mammary sentinel node cannot be retrieved via same incision of lumpectomy/mastectomy. intervention 6: Two to three hours prior to surgery, a peritumoral injection of filtered Technetium Sulfur Colloid will be performed in four 0.25 mci/2cc aliquots

Protocol document: