AUTHOR=Zhang Xiumin , Yang Juan , Guo Cuicui , Wang Jingcai TITLE=Low molecular weight heparin calcium sequential rivaroxaban for the treatment of cerebral venous sinus thrombosis and cortical venous infarction in children with nephrotic syndrome: case report JOURNAL=Frontiers in Pediatrics VOLUME=Volume 13 - 2025 YEAR=2025 URL=https://www.frontiersin.org/journals/pediatrics/articles/10.3389/fped.2025.1566114 DOI=10.3389/fped.2025.1566114 ISSN=2296-2360 ABSTRACT=Cerebral venous sinus thrombosis (CVST), though exceedingly rare, represents a serious complication in pediatric patients with nephrotic syndrome (NS). We describe an 11-year-old male with steroid-resistant nephrotic syndrome (SRNS) maintained on prednisone/tacrolimus therapy who subsequently developed CVST. The patient manifested respiratory/gastrointestinal symptoms (cough, diarrhea) followed by neurologic deterioration featuring headache, seizures, and altered consciousness. Magnetic resonance imaging (MRI) and magnetic resonance venography (MRV) confirmed transverse sinus thrombosis with cortical venous infarction. A 5-day course of low-molecular-weight heparin (LMWH) followed by rivaroxaban achieved safe thrombus resolution, supporting this anticoagulation protocol in pediatric NS.