Extracellular Vesicles: New Tools for Early Diagnosis of Breast and Genitourinary Cancers.

Breast cancers and cancers of the genitourinary tract are the most common malignancies among men and women and are still characterized by high mortality rates. In order to improve the outcomes, early diagnosis is crucial, ideally by applying non-invasive and specific biomarkers. A key role in this field is played by extracellular vesicles (EVs), lipid bilayer-delimited structures shed from the surface of almost all cell types, including cancer cells. Subcellular structures contained in EVs such as nucleic acids, proteins, and lipids can be isolated and exploited as biomarkers, since they directly stem from parental cells. Furthermore, it is becoming even more evident that different body fluids can also serve as sources of EVs for diagnostic purposes. In this review, EV isolation and characterization methods are described. Moreover, the potential contribution of EV cargo for diagnostic discovery purposes is described for each tumor.

Assessing patient risk from cancer and COVID-19: Managing patient distress.

The rapid spread of coronavirus disease 2019 (COVID-19) beginning in Spring 2020 necessitated significant changes to day-to-day interactions in society, as well as to the practice of medicine. Particularly in patients with cancer, these changes can exacerbate the pre-existing psychological stress associated with cancer diagnosis and treatment. We performed a narrative review, encompassing changes to cancer care as a result of COVID-19, the psychological effects of treatment delays, and strategies to mitigate these effects. A number of review articles and guideline bodies have provided guidance on patients for whom treatment may be safely delayed, including low-risk bladder, prostate and kidney tumors, as well as intermediate and high-risk prostate cancer. Mental health diagnoses are prevalent in patients with genitourinary malignancies. Evidence regarding psychologic effects of deferred treatment is limited to those with low risk of disease related morbidity. In this population, psychologic distress attenuated with time. However, in the COVID-19 context, patients with advanced disease are particularly prone to psychologic distress, as are women and younger patients. Strategies to mitigate this distress are emerging and center on recognition from the treating oncologist with appropriate referral as necessary to psycho-oncology providers and engagement of peer-supports. The COVID-19 pandemic has reshaped social structures and health care delivery. For patients with genitourinary malignancies, this may be associated with significant distress, particularly among those with advanced disease and those undergoing active treatment. Physicians treating these patients need to be aware of the psychologic stress the combined effects of the COVID-19 pandemic, cancer diagnosis, and cancer treatment can have and make appropriate referrals to support the holistic care of their patients.

Genitourinary Medical Oncology Expert Opinion Survey Regarding Treatment Management in the COVID-19 Pandemic.

BACKGROUND: The worldwide Coronavirus disease 2019 (COVID-19) public health pandemic has restructured clinical care of patients with cancer throughout the world. The specific changes in the management of genitourinary (GU) cancers in different cancer centers owing to COVID-19 are not known, and some clinical scenarios remain controversial. We conducted an opinion survey to determine what changes in cancer treatment strategies are occurring owing to the COVID-19 pandemic. MATERIALS AND METHODS: A 20-item online survey was sent on May 25, 2020 to 170 expert GU medical oncologists from Europe and North America. The survey solicited responses to changes in GU cancer management in the setting of the COVID-19 pandemic. Data was collected and managed via a secure REDCap Database. RESULTS: Surveys were completed by 78 (45.8%) of 170 GU oncologists between May 25, 2020 and June 25, 2020. Clinical practice changes owing to COVID-19 in at least one scenario were reported by 79.1% of responders, most pronounced in prostate cancer (71.8%) and least pronounced in urothelial cancer (23%). Preferences for change in management varied by country, with 78% (37/47) of United States oncologists indicating a change in their practice, 57% (4/7) of Canadian oncologists, and 79% (19/24) of European oncologists. CONCLUSIONS: This study suggests international practice changes are occurring in GU cancer care during the COVID-19 pandemic. The variability in practice changes between countries may reflect differences in COVID-19 case load during the time point of data collection. These results, based on expert opinion during this rapidly changing crisis, may inform the oncologic community regarding the effects of COVID-19 on GU cancer care.

Referral pattern for urologic malignancies before and during the COVID-19 pandemic.

INTRODUCTION: The COVID-19 pandemic has required significant restructuring of healthcare with conservation of resources and maintaining social distancing standards. With these new initiatives, it is conceivable that the diagnosis of cancer care may be delayed. We aimed to evaluate differences in patient populations being evaluated for cancer before and during the COVID-19 pandemic. METHODS AND MATERIALS: We performed a retrospective review of our electronic medical record and examined patient characteristics of those presenting for a possible new cancer diagnosis to our urologic oncology clinic. Data was analyzed using logistic and linear regression models. RESULTS: During the 3-month period before the COVID-19 pandemic began, 585 new patients were seen in one urologic oncology practice. The following 3-month period, during the COVID-19 pandemic, 362 patients were seen, corresponding to a 38% decline. Visits per week increased to pre-COVID-19 levels for kidney and bladder cancer as the county entered the green phase. Prostate cancer visits per week remained below pre-COVID-19 levels in the green phase. When the 2 populations pre-COVID-19 and COVID-19 were compared, there were no notable differences on regression analysis. CONCLUSION: The COVID-19 pandemic decreased the total volume of new patient referrals for possible genitourinary cancer diagnoses. The impact this will have on cancer survival remains to be determined.