Vascular and Cognitive Assessments in Patients With Breast Cancer Undergoing Chemotherapy After Surgery

PRIMARY OBJECTIVES:

I. To assess the feasibility of enrolling women who are receiving adjuvant chemotherapy for breast cancer to a clinical trial with assessments of vascular function and cognition before and after adjuvant chemotherapy and to obtain pilot data on outcomes that will be used in future larger-scale trials.

SECONDARY OBJECTIVES:

I. Evaluate the presence, duration, and severity of brain circulation changes identified with transcranial Doppler ultrasound (TCD) after adjuvant chemotherapy for breast cancer.

II. Assess the changes in flow-mediated dilation (FMD) and aortic dilation that occur after adjuvant chemotherapy for breast cancer.

III. Assess for correlation between the presence of brain circulation and vascular changes and performance on neuropsychological testing and the Functional Assessment of Cancer Therapy-Cognitive Scale (FACT-Cog).

OUTLINE:

Patients undergo TCD examination including bilateral evaluation of standard intracranial arterial segments including the M1 and M2 segments of the middle cerebral artery (MCA), the anterior cerebral artery (ACA) and posterior (PCA) cerebral artery, via the transtemporal acoustic windows, the internal carotid artery (ICA) siphon via transorbital approach, and the vertebral and basilar arteries (proximal, mid, and distal) via the suboccipital approach. Patients also undergo magnetic resonance imaging (MRI). All tests occur between 21 days after completion of surgery and up to 30 days prior to adjuvant chemotherapy and between 20-60 days after completion of adjuvant chemotherapy.

After completion of study treatment, patients are followed up periodically.