Background Dopamine Dysregulation Syndrome (DDS) is an adverse non‐motor complication of dopamine replacement therapy in Parkinson's disease. The current literature on this syndrome is limited, and it remains underdiagnosed and challenging to manage. Objective To assess the role of advanced therapies in the management of DDS. Methods We performed a retrospective chart review and identified patients who fit the inclusion criteria for DDS. They were classified according to risk factors that have been identified in the literature, motor and complication scores, intervention (medical or surgical) and outcome. Multivariate analyses were performed to analyze these characteristics. Results Twenty‐seven patients were identified (23 males, mean age of onset: 49 ± 8.8 years). Average levodopa equivalent daily dose was 1916.7 ± 804 mg and a history of impulse control disorders, psychiatric illness, and substance abuse was present in 89%, 70% and 3.7% of the patients, respectively. Overall 81.5% of patients had symptom resolution at follow up, on average 4.8 ± 3.5 years after management, with medication only (7/9), levodopa‐carbidopa intestinal gel (1/3), deep brain stimulation of subthalamic nucleus (10/13), or globus pallidus pars interna (2/2). Reduction of medications occurred with deep brain stimulation of subthalamic nucleus (P = 0.01) but was associated with a relapse in two patients. Conclusion Although the small sample size of some subgroups limits our ability to draw meaningful conclusions, our results did not suggest superiority of a single treatment option. Advanced therapies including deep brain stimulation can be considered in patients with DDS refractory to conservative measures, but outcome is variable and relapse is possible.

Introduction The SARS-CoV-2 virus and associated COVID-19 infection is known to cause endothelial cell dysfunction. This has led some to hypothesize that COVID-19 infection may increase the risk of erectile dysfunction. Initial studies evaluating this association have been limited to small, single institution studies or have utilized electronic medical record databases that lack universal follow-up given they only capture follow-up care at a small proportion of health care facilities. Objective To assess if COVID-19 infection recovery is associated with increased rates of newly diagnosed erectile dysfunction (ED) using an insurance claims database. Methods Using IBM MarketScan, a commercial claims database, men with prior COVID-19 infection between January 2020 and January 2021 were identified using ICD-10 diagnosis codes. Using this cohort along with an age-matched cohort of men without prior COVID-19 infection, we assessed the incidence of newly diagnosed erectile dysfunction (ED). Men with ED secondary to prostatectomy or radiation were excluded. Covariates were assessed using a multivariable model to determine association of prior COIVD-19 infection with newly diagnosed ED. Results 42,406 men experienced a COVID-19 infection between January 2020 and January 2021 of which 610 (1.44%) developed new onset ED within 6.5 months follow up. On multivariable analysis while controlling for diabetes, cardiovascular disease, smoking, obesity, hypogonadism, thromboembolism, and GU malignancy, prior COVID-19 infection was associated with increased risk of new onset ED (HR 1.27; 95% CI 1.1-1.5; P=0.001). COVID-19 infection carried a similar association with new onset ED as did diabetes and BMI 25-30, HR 1.3 and 1.29, respectively. Conclusions Prior to the widespread implementation of the COVID-19 vaccine, the incidence of newly diagnosed ED is higher in men with prior COVID-19 infection compared to age-matched controls. Prior COVID-19 infection was associated with a 27% increased likelihood of developing new-onset ED when compared to those without prior infection. Additional longitudinal studies are needed to evaluate the risk of erectile dysfunction after following asymptomatic infection and in the setting prior vaccination. Disclosure Any of the authors act as a consultant, employee or shareholder of an industry for: Cooper Medical, Boston Scientific, Acerus, Coloplast, Endo, Turtle Health, Maximus, FirmTech, StreamDx, Inherent Bioscience.

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Background Patients on renal replacement therapy face many dietary limitations, and cheese is often limited because of its high phosphate content; we have developed cheese with added calcium carbonate (CaCO 3 ) to provide patients with a nutritional opportunity while improving their phosphate control. Methods The present double-blind crossover study was aimed to compare the new modified cheese with an equivalent standard product in 16 patients. The increase in inter-dialysis phosphorus (ΔP) and pre-dialysis calcium were used as the primary endpoints for efficacy and safety. Results The median ΔP (and IQR) was significantly lower with the modified cheese compared with the standard product: 2.5 (1.9–2.9) mg/dL vs. 2.7 (2.2–3.4) mg/dL, respectively (p < 0.02). No difference was observed in pre-dialysis serum calcium levels. Conclusions The described modified cheese may represent an interesting means of overcoming some of the dietary limitations in patients on dialysis to help them achieve better nutrition and quality of life. Graphic abstract