The Variable Manifestations of Disease in Pyruvate Kinase Deficiency and Their Management
REVIEW ARTICLE The variable manifestations of disease in pyruvate kinase deficiency and their Ferrata Storti Foundation management Hanny Al-Samkari,1 Eduard J. van Beers,2 Kevin H.M. Kuo,3 Wilma Barcellini,4 Paola Bianchi,4 Andreas Glenthøj,5 María del Mar Mañú Pereira,6 Richard van Wijk,7 Bertil Glader8 and Rachael F. Grace9 1Division of Hematology, Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA; 2Van Creveldkliniek, University Medical Centre Utrecht, University of Utrecht, Utrecht, the Netherlands; 3Division of Hematology, University of Toronto, University Health Haematologica 2020 Network, Toronto, Ontario, Canada; 4UOS Ematologia, Fisiopatologia delle Anemie, Volume 105(9):2229-2239 Fondazione IRCCS Ca’ Granda Ospedale Maggiore Policlinico, Milan, Italy; 5Department of Hematology, Herlev and Gentofte Hospital, Herlev, Denmark; 6Translational Research in Rare Anaemia Disorders, Vall d'Hebron Institut de Recerca (VHIR), Barcelona, Spain; 7Department of Clinical Chemistry & Hematology, University Medical Center Utrecht, Utrecht University, Utrecht, the Netherlands; 8Lucile Packard Children’s Hospital, Stanford University School of Medicine, Palo Alto, CA, USA and 9Dana/Farber Boston Children's Cancer and Blood Disorders Center, Harvard Medical School, Boston, MA, USA. ABSTRACT yruvate kinase deficiency (PKD) is the most common cause of chron- ic hereditary non-spherocytic hemolytic anemia and results in a Pbroad spectrum of disease. The diagnosis of PKD requires a high index of suspicion and judicious use of laboratory tests that may not always be informative, including pyruvate kinase enzyme assay and genetic analysis of the PKLR gene. A significant minority of patients with PKD have occult mutations in non-coding regions of PKLR which are missed on standard genetic tests.
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