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NO (nitric oxide) to priapism with hydroxyurea and tadalafil

Kenneth I. Ataga

Blood, 2025

Abstract

In this issue of Blood, Idris et al 1 have demonstrated the feasibility of conducting a trial to prevent priapism in male patients with sickle cell anemia and provide data that suggest a benefit for hydroxyurea in reducing the rate of priapism.Clinical complications of sickle cell disease (SCD) are caused by vaso-occlusion with ischemia-reperfusion injury and hemolytic anemia. 2 Hemolysis is associated not only with anemia and cholelithiasis but also with vasculopathic complications such as stroke, pulmonary hypertension, kidney disease, leg ulcers, and priapism.

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