Video Experimental Relacionado
Updated: Feb 20, 2026

13:08
Measurement of Factor V Activity in Human Plasma Using a Microplate Coagulation Assay
Published on: September 9, 2012
19.5K
Un caso multifactorial de Hemofilia A Adquirida
Jason P Willis1, Timothy Kanne1, Alex Cole1
1Medicine, Edward Via College of Osteopathic Medicine, Auburn, USA.
Cureus
|February 19, 2026
Resumen
La hemofilia A adquirida (AIHA) es un raro trastorno autoinmune que causa anticuerpos contra el factor VIII y hemorragias. Este caso muestra la AIHA
Área de la Ciencia:
- Hematología
- Inmunología
- Trastornos Autoinmunes
Sus antecedentes:
- La hemofilia A adquirida (AIHA) es un raro trastorno hemorrágico autoinmune caracterizado por autoanticuerpos contra el factor VIII.
- Afecta a aproximadamente una de cada millón de personas al año y conlleva riesgos significativos, especialmente con comorbilidades.
- Este caso involucra a una mujer de 73 años con cardiopatía, diabetes, hipertensión y una prueba positiva de anticoagulante lúpico.
Objetivo del estudio:
- Presentar un caso complejo de Hemofilia A Adquirida en un paciente con múltiples comorbilidades.
- Destacar los desafíos en el manejo de la AIHA, incluido el equilibrio entre la inmunosupresión y los riesgos de hemorragia.
- Enfatizar el impacto de la enfermedad grave en la salud mental y la importancia de los cuidados paliativos.
Principales métodos:
- Informe de caso de una mujer de 73 años que presenta un hematoma cervical en rápido crecimiento.
- El estudio diagnóstico incluyó el tiempo de tromboplastina parcial activada (aPTT) y los niveles de factor VIII.
- El tratamiento incluyó corticosteroides, ciclofosfamida, rituximab y factor VIIa recombinante.
Principales resultados:
- El diagnóstico de AIHA se confirmó mediante un aPTT prolongado y niveles críticamente bajos de factor VIII.
- A pesar del tratamiento agresivo, el paciente experimentó episodios recurrentes de hemorragia.
- Las complicaciones incluyeron fiebre neutropénica y depresión refractaria, lo que llevó a la transición a cuidados paliativos.
Conclusiones:
- El diagnóstico rápido y el manejo multidisciplinario son cruciales para los pacientes con AIHA.
- El equilibrio entre la terapia inmunosupresora y el riesgo de hemorragia es un desafío clínico importante.
- Las estrategias de tratamiento individualizadas y la atención a la salud mental son vitales para mejorar los resultados en la AIHA.
Palabras clave:
hemofilia adquirida (aha)hemofilia adquiridahematoma espontáneoanticoagulante lúpicomultifactorialMás Videos Relacionados
Videos de Conceptos Relacionados
Disorders of Hemostasis
2.4K
Hemostasis, the process that stops bleeding after a blood vessel injury, is crucial for maintaining the integrity of the circulatory system. However, disorders of hemostasis can disrupt this delicate balance, leading to either excessive clotting or bleeding. These disorders can be broadly classified into thromboembolic disorders and bleeding disorders.
Thromboembolic Disorders
Two factors primarily cause thromboembolic conditions.
Thromboembolic Disorders
Two factors primarily cause thromboembolic conditions.
2.4K
Extrinsic and Intrinsic Pathways of Hemostasis
13.7K
Blood clotting or coagulation involves extrinsic and intrinsic pathways, which ultimately merge into the common pathway, forming a fibrin clot.
The Extrinsic Pathway
The extrinsic pathway of coagulation is typically initiated by tissue damage that exposes blood to tissue factor (TF), a protein released by the damaged tissue cells outside the blood vessels—this interaction with TF triggers biochemical reactions involving specific clotting factors. The key player here is Factor VII, which...
The Extrinsic Pathway
The extrinsic pathway of coagulation is typically initiated by tissue damage that exposes blood to tissue factor (TF), a protein released by the damaged tissue cells outside the blood vessels—this interaction with TF triggers biochemical reactions involving specific clotting factors. The key player here is Factor VII, which...
13.7K
Anticoagulant Drugs: Low-Molecular-Weight Heparins
2.0K
Hemostasis is a crucial process that prevents excessive blood loss from damaged blood vessels. It involves various mechanisms such as vasoconstriction, platelet adhesion and activation, and fibrin formation. The importance of each mechanism depends on the type of vessel injury. In contrast, thrombosis is the abnormal formation of a blood clot within the blood vessels, leading to potential complications if the clot obstructs blood flow. Thrombosis can be caused by increased coagulability of the...
2.0K
Genome-wide Association Studies-GWAS
15.8K
Genome-wide association studies or GWAS are used to identify whether common SNPs are associated with certain diseases. Suppose specific SNPs are more frequently observed in individuals with a particular disease than those without the disease. In that case, those SNPs are said to be associated with the disease. Chi-square analysis is performed to check the probability of the allele likely to be associated with the disease.
GWAS does not require the identification of the target gene involved in...
GWAS does not require the identification of the target gene involved in...
15.8K
Multiple Allele Traits
38.3K
The Concept of Multiple Allelism
38.3K
Blood Types
23.2K
Human blood is classified into different types based on the presence of antigens on the red blood cell's surface and antibodies in the plasma. Proper identification of blood type is essential for successful blood transfusion. The International Society of Blood Transfusion has identified 38 human blood types based on the surface antigens on the red blood cells. The most common types are ABO, Rh, and MNS blood types.
ABO blood group
ABO antigens are glycoproteins encoded by genes present on...
ABO blood group
ABO antigens are glycoproteins encoded by genes present on...
23.2K

