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. 2022 Jan 26;11(3):617.
doi: 10.3390/jcm11030617.

Functional Network Connectivity Reveals the Brain Functional Alterations in Breast Cancer Survivors

Affiliations

Functional Network Connectivity Reveals the Brain Functional Alterations in Breast Cancer Survivors

Tatyana Bukkieva et al. J Clin Med. .

Abstract

Different neurological and psychiatric disorders such as vertebrobasilar insufficiency, chronic pain syndrome, anxiety, and depression are observed in more than 90% of patients after treatment for breast cancer and may cause alterations in the functional connectivity of the default mode network. The purpose of the present study is to assess changes in the functional connectivity of the default mode network in patients after breast cancer treatment using resting state functional magnetic resonance imaging (rs-fMRI). Rs-fMRI was performed using a 3.0T MR-scanner on patients (N = 46, women) with neurological disorders (chronic pain, dizziness, headaches, and/or tinnitus) in the late postoperative period (>12 months) after Patey radical mastectomy for breast cancer. According to the intergroup statistical analysis, there were differences in the functional connectivity of the default mode network in all 46 patients after breast cancer treatment compared to the control group (p < 0.01). The use of rs-fMRI in in breast cancer survivors allowed us to identify changes in the functional connectivity in the brain caused by neurological disorders, which correlated with a decreased quality of life in these patients. The results indicate the necessity to improve treatment and rehabilitation methods in this group of patients.

Keywords: breast cancer; breast cancer treatment; connectome; default mode network; functional MRI; post-mastectomy pain syndrome.

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Conflict of interest statement

The authors declare no conflict of interest.

Figures

Figure 1
Figure 1
Three-dimensional reconstruction of the functional connections between the MPFC and various areas of the brain in a group of patients after breast cancer treatment using seed-based analysis. Positive functional connections between the MPFC and the zones of interest are indicated in red, and negative ones are indicated in blue.
Figure 2
Figure 2
Three-dimensional reconstruction of the functional connections between the MPFC and various areas of the brain in a group of patients after breast cancer treatment with the presence of lymphedema using seed-based analysis. Positive functional connections between the MPFC and the zones of interest are indicated in red, and negative ones are indicated in blue.
Figure 3
Figure 3
Three-dimensional reconstruction of the functional connections between the MPFC and various areas of the brain in a group of patients with postmastectomy pain syndrome using seed-based analysis. Positive functional connections between the MPFC and the zones of interest are indicated in red, and negative ones are indicated in blue.
Figure 4
Figure 4
Three-dimensional reconstruction of the set of functional connections between the MPFC and various brain areas of patients after breast cancer treatment with the presence of vestibulocerebellar ataxia using seed-based analysis. The positive functional connections between the MPFC and the zones of interest are indicated in red, and the negative ones are indicated in blue.
Figure 5
Figure 5
Three-dimensional reconstruction of the set of functional connections between the MPFC and various brain areas of patients with the presence of depression after breast cancer treatment using seed-based analysis. Positive functional connections between the MPFC and the zones of interest are indicated in red, and negative ones are indicated in blue.

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