Hoxha, Ariela. “PO061 | LONG-TERM HEADACHE IMPROVEMENT WITH VITAMIN K ANTAGONISTS IN PRIMARY AND SECONDARY ANTIPHOSPHOLIPID SYNDROME: 2-YEAR OBSERVATIONAL COHORT: A. Hoxha1|2, C. Belizna3, E. Esteve-Valverde4, A. Prundean5, A. Godon6, G. Gobbo1|2, A. Anunciación-Llunell7|8|9, R. Ferrer-Oliveras10, J.O. Latino11, S. Udry11, J. Alijotas-Reig7|8|9 | 1Department of Medicine, University of Padua, Padova, Italy; 2Internal Medicine Unit, Thrombosis and Bleeding Disorder Center, University Hospital of Padua, Padova, Italy; 3Vascular and Coagulation Department, University Hospital Angers, Angers, France; 4Systemic Autoimmune Diseases Unit, Department of Internal Medicine, Hospital Sant Camil, Consorci Sanitari Del Garraf, Barcelona, Spain; 5University of Angers, Inserm, CNRS, MITOVASC, SFR ICAT, Angers, France; 6Centre Hospitalier Universitaire Angers, Institut National De La Santé Et De La Recherche Médicale, Centre National De La Recherche Scientifique, Centre De Recherche En Cancérologie Et Immunologie Intégrée Nantes Angers, Laboratoire d’Hématologie, Université d’Angers, Nantes Université, Angers, France; 7Department of Medicine, Universitat Autònoma De Barcelona, Spain; 8Systemic Autoimmune Disease Unit, Department of Internal Medicine, Vall d’Hebron University Hospital, Spain; 9Systemic Autoimmune Diseases Research Unit, Vall d’Hebron Institut De Recerca, Barcelona, Spain; 10Obstetrics Department, High-Risk Unit, Hospital Universitario Quirónsalud, Barcelona, Spain; 11Autoimmune, Thrombophilic Diseases and Pregnancy Division, Dr. Carlos G. Durand Hospital, Buenos Aires, Argentina”. Bleeding, Thrombosis and Vascular Biology 5, no. s3 (October 26, 2026). Accessed October 28, 2026. https://www.btvb.org/btvb/article/view/877.