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07.02.2018 | Original Article | Ausgabe 7/2018

Supportive Care in Cancer 7/2018

A pilot investigation on impact of participation in a long-term follow-up clinic (LTFU) on breast cancer and cardiovascular screening among women who received chest radiation for Hodgkin lymphoma

Zeitschrift:
Supportive Care in Cancer > Ausgabe 7/2018
Autoren:
K. Baxstrom, B. A. Peterson, C. Lee, R. I. Vogel, A. H. Blaes

Abstract

Background

Women treated with chest radiation for Hodgkin lymphoma (HL) are at significantly increased risk of breast cancer and cardiovascular disease. HL survivors are recommended to have annual dual screening with mammogram (MMG) and breast magnetic resonance imaging (MRI). They are also recommended to undergo echocardiogram (echo) 5 years after completion of radiation. We performed a pilot study to characterize the women who are and are not receiving proper dual screening for breast cancer and baseline echo, and to examine the impact of a LTFU clinic consultation on screening.

Methods

A retrospective chart review of 114 women treated for HL at University of Minnesota (UMN) between 1993 and 2009 was performed. Demographics, disease and treatment history (age at diagnosis, stage, radiation dose and field, chemotherapy, recurrence) were assessed, as well as screening practices (MMG, MRI, both and echo), participation in LTFU clinic, and recommendations from providers. Data was summated in yes/no (y/n) format; statistical analysis was performed using chi-squared and Fisher’s exact tests. Breast cancer and cardiovascular screening outcomes were compared by participation in the LTFU clinic (y/n) using Fisher’s exact tests. P values < 0.05 were considered statistically significant.

Results

Forty-one of 114 women met inclusion criteria and had follow-up data for analysis. Median age at diagnosis was 29 years; 67.6% were diagnosed at stage IIa. Median dose of radiation was 3570 cGy. 56.1% participated in the LTFU clinic at the UMN. 36.6% had dual screening with both MMG and MRI, 41.5% had screening with only MMG, and 19.5% had no screening performed. Women were more likely to have dual screening if they were seen in LTFU clinic vs not seen in LTFU clinic (52.2 vs 16.7%, p = 0.02). 67.5% of women were screened with echo; women were also more likely to have screening with echo if seen in LTFU clinic vs not seen (86.4 vs 44.4%, p = 0.007).

Conclusion

Many women are not getting the proper dual screening for breast cancer despite their increased risk, with only 36.6% of our study sample getting dual screening. Having a consultation in a LTFU clinic increases dual screening for breast cancer and echo screening for cardiovascular disease. Proper screening allows for detection of secondary breast cancer at earlier stages where treatment can be local therapy. Diagnosing CV disease early could allow for proper preventative treatment or intervention.

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