Paroxysmal Nocturnal Hemoglobinuria in the PICU

Welcome to "PICU Doc on Call," the podcast where the world of pediatric critical care comes alive! Today, Dr. Monica Gray, Dr. Pradip Kamat, and Rahul Damania delve into a fascinating case involving a 16-year-old male presenting with headache, photophobia, anemia, and cerebral venous thrombosis. After some detective work, the diagnosis? Paroxysmal nocturnal hemoglobinuria, or PNH.Join us as we break down the pathogenesis and clinical features of PNH, walk through the diagnostic workup, and discuss management strategies, especially the game-changing role of complement inhibitors like Eculizumab. We’ll also review this patient’s clinical journey, highlighting the key pearls for recognizing and treating PNH in the pediatric intensive care unit.So, tune in to hear more!Show Highlights:Clinical case presentation of a 16-year-old male with symptoms including headache, photophobia, and anemiaDiagnosis of paroxysmal nocturnal hemoglobinuria (PNH) and its clinical significancePathogenesis of PNH, including the role of the PIGA gene mutation and GPI-anchored proteinsClinical features and complications associated with PNH, such as thrombosis and hemolysisDiagnostic workup for PNH, including laboratory tests and flow cytometryManagement strategies for PNH, focusing on complement inhibitors like EculizumabImportance of supportive care in the PICU for patients with PNHDiscussion of emerging therapies and advancements in PNH treatmentPatient outcome and clinical course following treatment for PNHKey takeaways regarding the diagnosis and management of PNH in pediatric intensive careReferences:Fuhrman & Zimmerman - Textbook of Pediatric Critical Care.Reference 1: Brodsky RA. Paroxysmal nocturnal hemoglobinuria. Blood. 2014 Oct 30;124(18):2804-11.Reference 2 Waheed A, Shammo J, Dingli D. Paroxysmal nocturnal hemoglobinuria: Review of the patient experience and treatment landscape. Blood Rev. 2024 Mar;64:101158.Reference 3: Kokoris S, Polyviou A, Evangelidis P, Grouzi E, Valsami S, Tragiannidis K, Gialeraki A, Tsakiris DA, Gavriilaki E. Thrombosis in Paroxysmal Nocturnal Hemoglobinuria (PNH): From Pathogenesis to Treatment. Int. J. Mol. Sci. 2024 Nov 11;25(22):12104.