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Rev. chil. pediatr ; 91(3): 385-390, jun. 2020. tab
Artigo em Espanhol | LILACS | ID: biblio-1126176

RESUMO

Resumen: Introducción: El Sangrado Menstrual Excesivo (SME) es un problema frecuente en la adolescencia. La prevalencia de trastornos hereditarios de la coagulación (THC) como causa del SME no está bien establecida y la participación de defectos de la vía fibrinolítica ha sido poco explorada. Objetivo: Determinar la prevalencia de THC y defectos de la fibrinólisis en adolescentes con SME. Pacientes y Método: Se incluyeron 93 adolescentes, edad 11 a 18 años. Los antecedentes personales y familiares de sangra do se obtuvieron con un cuestionario estandarizado. Se controló exámenes: tiempo de protrom- bina (TP), tiempo de tromboplastina parcial activada (TTPa), estudio del factor Von Willebrand, recuento y función plaquetaria. Los pacientes que no fueron diagnosticados como THC, se evaluaron adicionalmente con el tiempo de lisis del coágulo. Resultados: 41 pacientes (44%) fueron diagnos ticados como THC: Enfermedad de Von Willebrand n = 28, defectos de la función plaquetaria n = 8, hemofilia leve n = 5. Se confirmó disminución del tiempo de lisis del coágulo en 31 pacientes. El 54% de pacientes diagnosticado como THC, tuvo SME como la primera manifestación hemorrágica. Conclusión: Estos resultados apoyan la necesidad de evaluación de la coagulación, incluyendo la vía fibrinolítica, en el estudio de adolescentes con SME.


Abstract: Introduction: Heavy Menstrual Bleeding (EMB) is a frequent problem in adolescence. The prevalence of inherited bleeding disorders (IBD) as a cause of EMB is not well established and the involvement of fibri nolytic pathway defects has been poorly explored. Objective: To determine the prevalence of IBD and fibrinolysis defects in adolescents with EMBs. Patients and Method: 93 adolescents (11 to 18 years old) were included. Personal and family history of bleeding were obtained through a standard ized questionnaire. The following lab tests were performed: prothrombin time (PT), activated partial thromboplastin time (aPTT), von Willebrand factor quantification, and platelet count and function. Those patients who were not diagnosed with IBD were further evaluated with clot lysis time assay. Results: 41 patients (44%) were diagnosed as IBD (Von Willebrand disease n = 28, platelet func tion defects n=8, mild hemophilia n = 5. Decreased clot lysis time was found in 31 patients. 54% of patients diagnosed with IBD had EMB as the first hemorrhagic manifestation. Conclusion: These results support the need to evaluate the coagulation process, including the fibrinolytic pathway in the study of adolescents with EMB.


Assuntos
Humanos , Feminino , Criança , Adolescente , Transtornos Herdados da Coagulação Sanguínea/complicações , Transtornos Herdados da Coagulação Sanguínea/diagnóstico , Fibrinólise , Menorragia/etiologia , Transtornos da Coagulação Sanguínea/complicações , Transtornos da Coagulação Sanguínea/diagnóstico , Testes de Coagulação Sanguínea , Prevalência , Estudos Transversais , Transtornos Herdados da Coagulação Sanguínea/fisiopatologia , Transtornos Herdados da Coagulação Sanguínea/epidemiologia
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