Paroxysmal cold hemoglobinuria (PCH) or Donath–Landsteiner hemolytic anemia (DLHA) is an autoimmune hemolytic anemia featured by complement-mediated intravascular hemolysis after cold exposure.[1] It can present as an acute non-recurrent postinfectious event in children, or chronic relapsing episodes in adults with hematological malignancies or tertiary syphilis. Described by Julius Donath (1870–1950) and Karl Landsteiner (1868–1943) in 1904, PCH is one of the first clinical entities recognized as an autoimmune disorder.[2]
In most patients with DLHA, the antibody selectively targets against the red blood cells on-surface antigen called the antigen P or antigen I, respectively.[3] Most cases were found to be owing to polyclonalIgG. Nonetheless, IgM-induced DLHA has already also been described in the past.[3][4][5][6] For example, there was a case study reporting that autoimmune hemolytic anemia where an IgA Donath–Landsteiner denoted as [D-L] antibody appeared to cause Donath–Landsteiner cold hemoglobinuria.[7] The most notable difference between DLHA and CAD (cold agglutinin disease) is the causative agent. For cold agglutinin disease, the causative agent is constantly owing to a cold-active IgM antibody.[3]
^Moticka, Edward J. (2013). Historical perspective on evidence-based immunology. Elsevier Science Publishing. p. 300. ISBN9780123983817.
^ abcdeTrisha Simone Tavares, MD, FAAP Attending Physician, Department of Pediatrics, Section of Hematology/Oncology, Cardon Children's Medical Center. Trisha Simone Tavares, MD, FAAP is a member of the following medical societies: Children's Oncology Group (2019-02-02). "Donath–Landsteiner Hemolytic Anemia: Practice Essentials, Pathophysiology, Etiology". Medscape Reference. Retrieved 2019-02-11.{{cite journal}}: CS1 maint: multiple names: authors list (link)
^Karafin, Matthew S.; Shirey, R. Sue; Ness, Paul M.; King, Karen E.; Keefer, Jeffrey (2012-05-02). "A case study of a child with chronic hemolytic anemia due to a Donath–Landsteiner positive, IgM anti-I autoantibody". Pediatric Blood & Cancer. 59 (5). Wiley: 953–955. doi:10.1002/pbc.24185. ISSN1545-5009. PMID22553072. S2CID41343971.
^Ogose, Takeshi; Wakata, Yoshifumi; Kaneko, Masaya; Shinahara, Kumi; Takechi, Tomoki; Kotani, Haruko (2007). "A Case of Recurrent Paroxysmal Cold Hemoglobinuria With the Different Temperature Thresholds of Donath–Landsteiner Antibodies". Journal of Pediatric Hematology/Oncology. 29 (10). Ovid Technologies (Wolters Kluwer Health): 716–719. doi:10.1097/mph.0b013e31814d6845. ISSN1077-4114. PMID17921855.
^Whipple, Nicholas S.; Moreau, Dawn AB.; Moulds, JoAnn M.; Hankins, Jane S.; Wang, Winfred C.; Nottage, Kerri A. (2015-06-05). "Paroxysmal cold hemoglobinuria due to an IgA Donath–Landsteiner antibody". Pediatric Blood & Cancer. 62 (11). Wiley: 2044–2046. doi:10.1002/pbc.25591. ISSN1545-5009. PMID26053459. S2CID45396704.