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The management of osteoporosis in breast cancer survivors.

ABSTRACT: Breast cancer is a common diagnosis and the majority of women treated will be cured. Women with early stage breast cancer may be at increased risk for osteoporosis due to anticancer therapies. Chemotherapy induced amenorrhea and the use of anti-estrogens can promote bone loss; thus, the management of bone health in women with breast cancer is an important component of survivorship care. Osteoporosis is considered a "silent" disease as there are often no discrete warning signs, until a fracture occurs; therefore, clinicians must be cognizant of the underlying risk for osteoporosis and co-morbid conditions and/or medications that accelerate risk of fracture. Breast cancer therapies that effect bone, screening for bone loss and interventions to mitigate the treatment toxicities are reviewed.

SUBMITTER: Taxel P

PROVIDER: S-EPMC3500398 | biostudies-literature | 2012 Dec

REPOSITORIES: biostudies-literature

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The management of osteoporosis in breast cancer survivors.

Taxel Pamela P Choksi Palak P Van Poznak Catherine C

Maturitas 20120925 4

Breast cancer is a common diagnosis and the majority of women treated will be cured. Women with early stage breast cancer may be at increased risk for osteoporosis due to anticancer therapies. Chemotherapy induced amenorrhea and the use of anti-estrogens can promote bone loss; thus, the management of bone health in women with breast cancer is an important component of survivorship care. Osteoporosis is considered a "silent" disease as there are often no discrete warning signs, until a fracture o ...[more]

PMID: 23017944

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Project description:Background: Although international guidelines recommend bone screening for premenopausal breast cancer patients taking adjuvant tamoxifen, the effects of tamoxifen on osteoporosis and related risks remain controversial. The objective of this study was to investigate the incidence of and risk factors for osteoporosis and osteoporotic fractures in younger breast cancer patients. Methods: A nationwide retrospective cohort study was conducted using South Korea Health Insurance Review and Assessment Service claims data. The rates of osteoporosis and osteoporotic fracture were calculated as incident cases per person-year and disease-free probability rates were analyzed with the Kaplan-Meier method. To identify risk factors for osteoporosis and osteoporotic fracture, a multivariable Cox proportional hazard regression model was applied. Results: From January 2009 to December 2014, a total of 47,649 breast cancer patients were included. The incidence rates of osteoporosis and osteoporotic fracture were 23.59 and 2.40 per 1,000 person-years, respectively. In the overall population, tamoxifen was significantly associated with a decreased risk of osteoporosis and osteoporotic fractures 0.76). However, tamoxifen was not associated with the risk of osteoporosis (HR 1.24, CI 0.85-1.82) and osteoporotic fracture (HR 8.15, CI 0.36-186.70) in patients under age 40. In the 40-49 years subgroup, tamoxifen significantly decreased the risk of osteoporosis (HR 0.74, CI 0.65-0.84) and osteoporotic fracture (HR 0.49, CI 0.31-0.76). Conclusions: Tamoxifen is not associated with an increased risk of osteoporosis and osteoporotic fracture in premenopausal breast cancer patients. Tailored screening strategies for breast cancer survivors with different osteoporosis risks are needed. Precis: Tamoxifen is not associated with an increased risk of osteoporosis and osteoporotic fracture in premenopausal breast cancer patients. Tailored screening strategies for breast cancer survivors who are at different risks of developing osteoporosis are needed.

Project description:Materials and methodsWe conducted a systematic literature search in PubMed, Cochrane Central Register of Controlled Trials, Embase, Chinese Biomedicine Database (CBM), China National Knowledge Infrastructure (CNKI), Wan Fang, and VIP up to May 2018. Randomized controlled trials (RCTs) reporting nonhormonal hot flash treatments for breast cancer survivors were included. Primary outcome measurements were hot flash frequency and hot flash score of posttreatment. The methodological quality of each study was assessed with Cochrane's risk of bias tool.Results16 RCTs involving 2,349 participants were included. The nonhormonal therapies used in the included studies were classified as follows: lifestyle changes, mind-body techniques, dietary/supplements, SSRIs/SNRIs, other medications, and other therapies. Pairwise meta-analysis showed that the general effect of nonhormonal management was statistically more effective than no treatment/placebo/sham in reducing hot flash frequency (SMD = -0.60, 95% CI [-1.13, -0.06]; P=0.03)) and hot flash score (SMD = -0.38, 95% CI [-0.68, -0.08]). For hot flash frequency, results from the NMA showed that there was no statistically significant difference between any two of the nonhormonal treatments. Another NMA result indicated that acupuncture (other therapies) was 16.05 points more effective in reducing hot flash scores than no treatment/waitlist (SMD = -16.05, 95% CI [-30.2, -1.99]). These results were statistically significant. Acupuncture was also ranked the optimal nonhormonal therapy for both hot flash frequency and hot flash score. The safety analysis showed that there were few related adverse events during acupuncture and that drug related adverse reactions could have also occurred in studies using drug interventions.ConclusionsThis network meta-analysis comparing nonhormonal treatments suggested that acupuncture might be more effective in improving hot flashes for breast cancer survivors. A pronounced placebo response was found during hot flash treatments. The evidence of safety for nonhormonal therapies was also insufficient. Therefore, at present, we cannot make confirmative recommendations of nonhormonal hot flash management for breast cancer survivors. This study is registered with PROSPERO (CRD42018082008).

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The management of osteoporosis in breast cancer survivors.

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The management of osteoporosis in breast cancer survivors.

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