Background Significant numbers of patients in the USA and UK die while waiting for solid organ transplant. Only 1–2% of deaths are eligible as donors with a fraction of the deceased donating organs. The form of consent to donation may affect the organs available. Forms of consent include: opt‐in, mandated choice, opt‐out, and organ conscription. Opt‐in and opt‐out are commonly practiced. A systematic review was conducted to determine the effect of opt‐in versus opt‐out consent on the deceased donation rate (DDR) and deceased transplantation rate (DTR). Methods Literature searches of PubMed and EMBASE between 2006 and 2016 were performed. Research studies were selected based on certain inclusion criteria which include USA, UK, and Spain; compare opt‐in versus opt‐out; primary data analysis; and reported DDR or DTR. Modeled effect on US transplant activity was conducted using public data from Organ Procurement and Transplantation Network and Centers for Disease Control WONDER from 2006 to 2015. Results A total of 2400 studies were screened and six studies were included. Four studies reported opt‐out consent increases DDR by 21–76% over 5–14 years. These studies compared 13–25 opt‐out countries versus 9–23 opt‐in countries. Three studies reported opt‐out consent increases DTR by 38–83% over 11–13 years. These studies compared 22–25 opt‐out versus 22–28 opt‐in countries. Modeled opt‐out activity on the USA resulted in 4753–17,201 additional transplants annually. Conclusion Opt‐out consent increases DDR and DTR and may be useful in decreasing deaths on the waiting list in the USA and other countries. Registration number PROSPERO CRD42019098759.

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A 56-year-old female with thrombocythemia complicated by portal venous system thrombosis presented with recurrent left pleural effusions after failed recanalization via mechanical thrombectomy and stenting at an outside center. With no other cause, splenic vein thrombosis and left-sided portal hypertension was suggested as a possible etiology. Partial splenic embolization was performed with immediate decrease in effusions and resolution by 8 weeks. Portal and splenic venous system thrombosis may cause recurrent pleural effusions from left-sided portal hypertension and fluid leakage across diaphragmatic defects. Upper pole partial splenic embolization may treat recurrent left pleural effusions and offer an alternative to splenectomy.

We report a case of acute gouty monoarthritis of the left ankle in a 58-year-old female with chronic renal insufficiency after cryoablation of a 3.8 cm left renal cell carcinoma. The patient's symptoms resolved after intravenous Solumedrol and did not recur at her 1-month follow-up visit. To the best of our knowledge, this is the first reported case of acute gouty monoarthritis after cryoablation of a renal cell carcinoma lesion in a patient with underlying chronic renal insufficiency. Clinicians should be vigilant of the potential for this complication in at-risk patient populations.

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