The majority of Danish breast cancer survivors on adjuvant endocrine therapy have clinically relevant sexual dysfunction: a cross-sectional study

Assessment of sexual function in postmenopausal breast cancer survivors

Background

Breast cancer (BC) is considered a risk factor for sexual dysfunction, which may be associated with the diagnosis itself or with oncological treatments. However, sexual dysfunction often remains underdiagnosed and unaddressed among BC survivors.

Aim

The study sought to evaluate the sexual function of postmenopausal BC survivors compared with postmenopausal women without BC.

Methods

This case-control study included 178 postmenopausal BC survivors (stages I-III), 45 to 70 years of age, with amenorrhea for ≥12 months and sexually active. They were compared with 178 women without BC, matched (±2 years) for age and time since menopause in a 1:1 ratio. Sexual function was evaluated using the Female Sexual Function Index (FSFI), which consists of 6 domains (desire, arousal, lubrication, orgasm, satisfaction, and pain), with a total score ≤26.5 indicating risk of sexual dysfunction. Statistical analysis included Student's t test, chi-square test, and logistic regression (odds ratio [OR]).

Outcomes

Evaluation of sexual function in postmenopausal women treated for BC.

Results

Postmenopausal BC survivors showed poorer sexual function in the desire domain (P = .002). No significant differences were observed between groups in the other FSFI domains and total score (P > .05). Postmenopausal BC survivors had a higher prevalence of risk of sexual dysfunction (64.6% with a total score ≤26.5) compared with the control group (51.6%) (P = .010). Adjusted risk analysis for age and time since menopause revealed a higher risk of sexual dysfunction in BC survivors compared with women without cancer (OR, 1.98; 95% confidence interval, 1.29-2.96; P = .007). Among BC survivors, the use of hormone therapy was associated with a higher risk of sexual dysfunction (OR, 3.46; 95% confidence interval, 1.59-7.51; P = .002).

Clinical Implications

Postmenopausal BC survivors should be regularly assessed before and throughout treatment to enable the early detection and diagnosis of sexual dysfunction.

Strength and Limitations

The main strength is that this study might contribute to a better understanding of sexual function in postmenopausal BC survivors compared with women without BC. The main limitation is that while the FSFI is a valid and reliable tool for the evaluation of female sexual function, it does not allow a comprehensive diagnosis of sexual dysfunction, as it is not applicable to partners.

Conclusion

Compared with postmenopausal women without BC, postmenopausal BC survivors face a higher risk of sexual dysfunction, especially when treated with adjuvant hormone therapy.

Cancer therapy-related vaginal toxicity: its prevalence and assessment methods-a systematic review

PURPOSE

In 2020, almost 9 million women were diagnosed with cancer worldwide. Despite advancements in cancer treatment strategies, patients still suffer from acute and long-term side effects. This systematic review aims to evaluate the most frequently reported adverse effects in the genitourinary system and compare them across cancer types, treatment modalities, and evaluation methods.

METHODS

Pubmed Central, SCOPUS, and Cochrane Library were searched following the PRISMA guidelines to identify all prospective and retrospective observational cohort studies and randomized controlled trials assessing vaginal side effects of adult female cancer patients. The study quality was evaluated using The Newcastle-Ottawa Scale or the Risk of Bias 2 tool, as appropriate.

RESULTS

The most prevalent population was breast cancer patients, followed by gynaecological cancer patients. Overall, the focus was on vaginal dryness, while vaginal stenosis was the primary outcome in gynaecological cancer patients. Significant discrepancies were found in the frequency and severity of the reported adverse events. Most studies in this review evaluated side effects using patient-reported outcome measures (PROMs).

CONCLUSIONS

Genitourinary syndrome of menopause following cancer treatment is most frequently documented in breast and gynaecological cancer patients, often focussing on vaginal dryness and vaginal stenosis based on PROMs. This review provides a complete overview of the literature, but more high-quality clinical trials are necessary to draw firm conclusions on acute and chronic vaginal toxicity following cancer treatment.

IMPLICATIONS FOR CANCER SURVIVORS

This review could help improve the current preventive and curative management options for genitourinary complications, thereby increasing the patient's QoL and sexual functioning.

Sexual health in long-term breast cancer survivors: a comparison with female population controls from the HUNT study

PURPOSE

Sexual health is an important aspect of quality of life. Knowledge concerning sexual health in long-term breast cancer survivors (BCSs) is limited. This study compared sexual health in BCSs 8 years after diagnosis with similarly aged controls and examined the impact of menopausal status at diagnosis and systemic breast cancer treatments on sexual health.

METHODS

Women aged 20-65 years when diagnosed with stage I-III breast cancer in 2011-2012 were identified by the Cancer Registry of Norway (n = 2803) and invited to participate in a nationwide survey. Controls were women from the Trøndelag Health Study (HUNT4). Sexual functioning and sexual enjoyment were measured by the EORTC QLQ-BR23 subscales scored from 0 to 100, and sexual discomfort by the Sexual Activity Questionnaire scored from 0 to 6. Linear regression analyses with adjustments for sociodemographic and health-related variables were performed to compare groups. Differences of ≥ 10% of range score were considered clinically significant.

RESULTS

The study samples consisted of 1241 BCSs and 17,751 controls. Sexual enjoyment was poorer (B - 13.1, 95%CI - 15.0, - 11.2) and discomfort higher (B 0.9, 95%CI 0.8, 1.0) among BCSs compared to controls, and larger differences were evident between premenopausal BCSs and controls (B - 17.3, 95%CI - 19.6, - 14.9 and B 1.2, 95%CI 1.0, 1.3, respectively). BCSs treated with both endocrine- and chemotherapy had lower sexual functioning (B - 11.9, 95%CI - 13.8, - 10.1), poorer sexual enjoyment (B - 18.1, 95%CI - 20.7, - 15.5), and more sexual discomfort (B 1.4, 95% 1.3, 1.6) than controls.

CONCLUSION

Sexual health impairments are more common in BCSs 8 years after diagnosis compared to similar aged population controls. During follow-up, attention to such impairments, especially among women diagnosed at premenopausal age and treated with heavy systemic treatment, is warranted.

Sexual Function in Women with Breast Cancer: An Evidence Map of Observational Studies

Breast cancer (BC) is the leading cause of cancer in women, and has implications for sexual function (SF). In this study, we used an evidence map to identify, describe, and organise the current available evidence regarding SF in women with BC. We searched the MEDLINE, PsycINFO, and CINAHL databases for observational studies assessing SF in women with BC published in English, Spanish, Portuguese, and French between 2000 and 2021 (sample ≥ 50 women). Of the 64 included studies (13,257 women with BC), 58 were published since 2010. Women who were married, partnered, or in relationships represented 74.1% of the entire sample. Only a single study was conducted on women representing a sexual minority. We identified 22 assessment instruments and 40 sexual dysfunction (SdF) domains. The number of publications on SF in women with BC has increased in the last 10 years, but still remains low. Some groups of women are underrepresented, and some SdF domains are underdiagnosed, with the assessment instrument used affecting which domains are studied. Women with BC need to be better screened, as their quality of life (QoL) is affected by SdF.

Gynecologic Symptoms among Hormone Receptor-Positive Breast Cancer Patients on Oral Endocrine Therapy: A Cross-Sectional Study

Endocrine therapy (ET) for hormone receptor-positive (HR+) breast cancer can contribute to gynecologic symptoms (GS) that impact vaginal health, sexual function, and quality of life (QoL). A cross-sectional study was conducted at St. Michael’s Hospital in Toronto, Canada between July 2017 and June 2018 to examine the occurrence and frequency of GS among HR+ breast cancer patients on ET, patient-provider communication, female sexual dysfunction (FSD), and QoL. A Treatment Experience questionnaire was developed for this study and the Female Sexual Function Index (FSFI) and Menopause-Specific Quality of Life questionnaire (MENQOL) were also administered. Of 151 patients surveyed, 77 (51.0%) were on tamoxifen and 74 (49.0%) on an aromatase inhibitor. Most patients (84.1%, 95% confidence interval [CI] 77.3% to 89.5%) experienced at least one GS “all the time” or “often”, or one or more infections, in the past year. Only 44 (31.9%) patients reported that their oncologist had ever previously asked them about experiencing GS. The prevalence of FSD was 61.2% (95% CI 46.2% to 74.8%) among 49 sexually active patients that completed the FSFI. Symptoms captured in the MENQOL’s vasomotor domain were deemed most bothersome. Side effect management and patient-provider communication should be prioritized to optimize GS, vaginal health, and sexual function of ET users.

Sexual activity and functioning in long-term breast cancer survivors; exploring associated factors in a nationwide survey

PURPOSE

Sexual health is a key quality of life issue. Knowledge concerning sexual health in long-term breast cancer survivors (BCSs) is limited. Within a nationwide sample, we aimed to assess the prevalence of sexual inactivity and to explore factors associated with sexual inactivity and reduced sexual functioning among long-term BCSs.

METHODS

Long-term BCSs aged 20-65 years when diagnosed with early-stage breast cancer in 2011-2012 were identified by the Cancer Registry of Norway in 2019 (n = 2803) and invited to participate in a nationwide survey. Sexual health was measured using the multidimensional Sexual Activity Questionnaire. Factors associated with sexual inactivity and reduced sexual functioning were explored using multivariable logistic- and linear regression analyses with adjustments for relevant sociodemographic, health-, and cancer-related variables.

RESULTS

The final sample consisted of 1307 BCSs with a mean age of 52 years at diagnosis. Fifty-two percent of the BCSs were sexually inactive. Lack of interest was the most common reason for sexual inactivity. Treatment with aromatase inhibitor (OR 1.73, 95% CI 1.23, 2.43) and poor body image (OR 0.99, 95% CI 0.99, 0.995) were associated with sexual inactivity. Among sexually active BCSs, depression (B - 1.04, 95% CI - 2.10, - 0.02) and physical inactivity (B - 0.61, 95% CI - 1.21, - 0.02) were inversely related to sexual pleasure. Treatment with aromatase inhibitor (B 0.61, 95% CI 0.20, 1.01), sleep problems (B 0.37, 95% CI 0.04, 0.70), breast symptoms (B 0.01, 95% CI 0.003, 0.02), and chronic fatigue (B 0.43, 95% CI 0.05, 0.81) were associated with sexual discomfort. Chemotherapy (OR 1.91, 95% CI 1.23, 2.97), current endocrine treatment (OR 1.98, 95% CI 1.21, 3.25), and poor body image (OR 0.98, 95% CI 0.98, 0.99) were associated with less sexual activity at present compared to before breast cancer.

CONCLUSION

Treatment with aromatase inhibitor seems to affect sexual health even beyond discontinuation. Several common late effects were associated with sexual inactivity and reduced sexual functioning. To identify BCSs at risk of sexual dysfunction, special attention should be paid to patients treated with aromatase inhibitor or suffering from these late effects.

Symptom trajectories in breast cancer survivors: growth mixture analysis of patient-reported pain, fatigue, insomnia, breast and arm symptoms

BACKGROUND

Variations in symptom development among breast cancer (BC) survivors are understudied. We examined: (Q1) Symptom trajectories of pain, fatigue, insomnia, breast, and arm symptoms in BC survivors, (Q2) possible patterns or cluster-like associations between trajectory classification of different symptoms, and (Q3) characteristics of survivors assigned to high-burden symptom trajectories.

MATERIAL AND METHODS

Participants were 968 women (mean age = 59.6 years) treated for early-stage BC and followed across a three-year postoperative period. As part of routine follow-up procedures, patients reported symptom burden and functioning levels at each hospital visit using the European Organisation for Research and Treatment of Cancer (EORTC) Quality of Life Questionnaire (QLQ-C30) and the BC-specific module (QLQ-BR-23). Growth mixture modeling (GMM) analysis was used to differentiate potential subgroups of individuals with similar longitudinal symptom patterns, i.e., symptom trajectories (Q1). With this approach, groups experiencing persistent, highly distressing cancer- and treatment-related late effects (LEs) may be identified. Latent class analysis (LCA) was used for Q2 and logistic regression analysis for Q3.

RESULTS

GMM identified two relatively parallel trajectories across the tested symptoms: The majority of the sample exhibited a low-burden symptom trajectory (74.4-89.2%) and a minority by a high-burden symptom trajectory (10.8-25.6%). LCA revealed that approximately one in five women (18.8%) were likely to be members of the high-burden symptom trajectory across all tested symptoms. In addition to a high probability of being burdened over time across multiple symptoms, these women were also characterized by poorer self-reported physical and social functioning.

CONCLUSION

A substantial minority followed a high-burden symptom trajectory for several years following BC treatment. Associations were found in trajectory classification across symptoms, indicating that cancer-related LEs appear in clusters of multiple concurrent symptoms.