Objective: Recent studies indicate that removal of the primary tumour may have a beneficial effect on mortality risk of patients with primary distant metastatic breast cancer (stage IV), although most of them did not rule out confounding by the presence of comorbidity. In this retrospective study the impact of surgical resection of the primary tumour on the survival of patients with primary distant metastatic disease is investigated, taking into account the presence of comorbidity and other potential confounders. Results: Median survival of the patients who had surgery of their primary tumour was significantly longer than for the patients who did not have surgery (31 vs. 14 months). The 5-year survival rates were 24.5% and 13.1%, respectively (p<0.0001). In a multivariable Cox regression analysis, adjusting for age, period of diagnosis, T-classification, number of metastatic sites, comorbidity, use of loco-regional radiotherapy and use of systemic therapy, surgery appeared to be an independent prognostic factor for overall survival (HR=0.62; 95% CI 0.56-0.71). Conclusion:Removal of the primary tumour in patients with primary distant metastatic disease was associated with a reduction of the mortality risk of around 40%. The association was independent of age, presence of comorbidity and other potential confounders, but a randomized controlled trial will be needed to rule out residual confounding.

Background The COVID-19 pandemic (officially declared on the 11th of March, 2020), and the resulting measures, are impacting daily life and medical management of breast cancer patients and survivors. We evaluated to what extent these changes have affected quality of life, physical and psychosocial wellbeing of patients (being) treated for breast cancer. Methods This study was conducted within a prospective, multicentre cohort of breast cancer patients and survivors (UMBRELLA). Shortly after the implementation of COVID-19 measures, an extra survey was sent to 1,595 participants, including validated EORTC QLQ-C30/BR23 and HADS questionnaires. Patient-reported outcomes (PROs) were compared to the most recent PROs collected within UMBRELLA pre-COVID-19. The impact of COVID-19 on PROs was assessed using mixed model analysis, adjusting for potential confounders. Results 1,051 patients and survivors (65.9%) completed the survey; 31.1% (n = 327) reported a higher threshold to contact their general practitioner amid the COVID-19 pandemic. A statistically significant deterioration in emotional functioning was observed (82.6 [SD = 18.7] to 77.9 [SD = 17.3], p &lt; .001), and 505 (48.0%, 95%CI = 45.0 to 51.1%) reported moderate to severe loneliness. Small improvements were observed in QoL, physical-, social- and role functioning. In the subgroup of 51 patients under active treatment, social functioning strongly deteriorated (77.3 [95%CI = 69.4 to 85.2] to 61.3 [95%CI = 52.6 to 70.1], p = .002). Conclusion During the COVID-19 pandemic, breast cancer patients and survivors were less likely to contact physicians and experienced a deterioration in their emotional functioning. Patients undergoing active treatment reported a substantial drop in social functioning. One in two reported loneliness that was moderate or severe. Online interventions supporting mental health and social interaction are needed during times of social distancing and lockdowns.

Pain, loss of arm strength, and limitation of shoulder movement are frequent complaints after axillary dissection for breast cancer and appear to be independent of the length of follow-up and the type of surgery (i.e., breast-conservation or mastectomy).

This is a PDF file of an unedited manuscript that has been accepted for publication. As a service to our customers we are providing this early version of the manuscript. The manuscript will undergo copyediting, typesetting, and review of the resulting proof before it is published in its final form. Please note that during the production process errors may be discovered which could affect the content, and all legal disclaimers that apply to the journal pertain. Methods: A Medline search was conducted that ultimately identified 56 candidate studies. Original data were abstracted from each study and used to calculate odds ratios. The random-effects model was used to combine odds ratios to determine the strength of the associations. associated with the size of metastases, had a correspondingly high odds ratio. Conclusions:We identified 8 factors predictive of NSN metastases that should be recorded and evaluated routinely in SLN databases. These factors should be included in a predictive model that is generally applicable among different populations.van la Parra 3

According to current treatment standards, patients with metastatic breast cancer at diagnosis receive palliative therapy. Local treatment of the breast is only recommended if the primary tumor is symptomatic. Recent studies suggest that surgical removal of the primary tumor has a favorable impact on the prognosis of patients with primary metastatic breast cancer. We performed a systematic review of the literature to weigh the evidence for and against breast surgery in this patient group. Ten retrospective studies were found in which the use of breast surgery in primary metastatic breast cancer and its impact on survival was examined. The hazard ratios of the studies were pooled to provide an estimate of the overall effect of surgery, and the results and conclusions of the studies were analyzed. A crude analysis, without adjustment for potential confounders, showed that surgical removal of the breast lesion in stage-IV disease was associated with a significantly higher overall survival rate in seven of the ten studies, and a trend toward a better survival in the three remaining studies. Surgery of the primary tumor appeared to be an independent factor for an improved survival in the multivariate analyses from the individual studies, with hazard ratios ranging from 0.47 to 0.71. The pooled hazard ratio for overall mortality was 0.65 (95% CI 0.59-0.72) in favor of the patients undergoing surgery. This systematic review of the literature suggests that surgery of the primary breast tumor in patients with stage-IV disease at initial presentation does have a positive impact on survival. In order to provide a definite answer on whether local tumor control in patients with primary metastatic disease improves survival, a randomized controlled trial comparing systemic therapy with and without breast surgery is needed.