Von Willebrand disease in the elderly. Von Willebrand disease (VWD) is a rare inherited haemorrhagic disorder, the prevalence of symptomatic individuals is around 1/10 000. Von Willebrand factor level increases with advanced age, explaining a lower frequency and a lower severity of cutaneous haemorrhagic symptoms with aging. The management of comorbidities in VWD patients is multidisciplinary, on a case by case basis, taking into account scientific society guidelines and haemostasis expert recommendations. The haemorrhagic risk should be systematically evaluated before an invasive procedure or the start of treatment with anticoagulant or antiplatelet drugs, or before the use of some cancer chemotherapy.
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Turk J Pediatr
December 2024
Department of Pediatric Rheumatology, Umraniye Training and Research Hospital, University of Health Sciences, İstanbul, Türkiye.
Background: Polyarteritis nodosa (PAN) is a rare and serious form of systemic necrotizing vasculitis that predominantly affects medium and small-sized arteries, with central nervous system involvement being particularly uncommon. Treatment strategies are tailored according to the extent and severity of the disease. While conventional therapy includes glucocorticoids and conventional disease-modifying-rheumatic drugs (cDMARDs), biologic agents may be critical for severe and refractory cases.
View Article and Find Full Text PDFCureus
December 2024
Internal Medicine, Hospital Universitario Dr. José Eleuterio González, Monterrey, MEX.
Heyde's syndrome is a clinical entity that combines aortic stenosis, gastrointestinal angiodysplasia, and an acquired von Willebrand factor disorder. This syndrome is characterized by the association between aortic stenosis and recurrent gastrointestinal bleeding episodes, typically linked to angiodysplasias. Effective treatment requires addressing the underlying condition, specifically aortic stenosis, which leads to the structural destruction of coagulation proteins, resulting in the acquired von Willebrand factor disorder and perpetuating the bleeding.
View Article and Find Full Text PDFJ Clin Transl Hepatol
January 2025
Department of Gastroenterology and Hepatology, Zhongshan Hospital, Fudan University, Shanghai, China.
Background And Aims: Pyrrolizidine alkaloids (PAs), widely distributed in plants, are known to induce liver failure. Hepatic platelet accumulation has been reported during the progression of PA-induced liver injury (PA-ILI). This study aimed to investigate the mechanisms underlying platelet accumulation in PA-ILI.
View Article and Find Full Text PDFSci Rep
January 2025
Discovery3 Team, Department of Research and Early Development, GC Biopharma, 93, Ihyeon-ro 30Beon-gil, Giheung-gu, Yongin-si, Gyeonggi-do, South Korea.
Immune-mediated thrombotic thrombocytopenic purpura (iTTP) is a rare and life-threatening blood disorder characterized by the formation of blood clots in small blood vessels. It is caused by antibodies targeting the A disintegrin and metalloprotease with thrombospondin type 1 repeats, member 13 (ADAMTS13), which plays a role in cleaving von Willebrand factor. Most patients with iTTP have autoantibodies against specific domains of the ADAMTS13 protein, particularly the cysteine-rich and spacer domains.
View Article and Find Full Text PDFEur J Haematol
January 2025
Division of Hematology and Medical Oncology, Oregon Health & Science University, Portland, Oregon, USA.
Hematologic complications are common in pregnancy and can significantly impact both maternal and fetal health. Recognizing and treating these complications can be challenging due to the limited evidence available to guide clinical consultants. Iron deficiency anemia is the most prevalent hematologic issue in pregnancy and often occurs due to increased maternal blood volume and the nutritional demands of the growing fetus.
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