{"id":70826,"date":"2017-05-22T14:14:33","date_gmt":"2017-05-22T14:14:33","guid":{"rendered":"http:\/\/humanitasnet-new.local\/malattie\/mielofibroza\/"},"modified":"2025-01-13T02:49:23","modified_gmt":"2025-01-13T02:49:23","slug":"mielofibroza","status":"publish","type":"disease","link":"https:\/\/humanitas-net.humweb.webiz.team\/ro\/diseases\/mielofibroza\/","title":{"rendered":"Mielofibroza"},"content":{"rendered":"<h2 id=\"definitie\">Defini\u021bie<\/h2>\n<p>Mielofibroza este o boal\u0103 periculoas\u0103 a m\u0103duvei osoase. Este o boal\u0103 care &icirc;ntrerupe produc\u021bia normal\u0103 a celulelor de s&acirc;nge \u0219i provoac\u0103 mari cicatrici ale m\u0103duvei osoase care pot duce la anemie, oboseal\u0103, sl\u0103biciune \u0219i uneori la m\u0103rirea splinei sau ficatului. Unele cazuri de mielofibroz\u0103 pot s\u0103 nu prezinte semne ale bolii chiar \u0219i pentru ani. Totu\u0219i, cele mai multe cazuri se &icirc;nr\u0103ut\u0103\u021besc cu timpul \u0219i c&acirc;teva pot s\u0103 se dezvolte &icirc;ntr-o form\u0103 mai serioas\u0103 de leucemie. Op\u021biunile de tratament se axeaz\u0103 pe ameliorarea simptomelor.<\/p>\n<p>&nbsp;<\/p>\n<h2 id=\"simptome\">Simptome<\/h2>\n<p>Mielofibroza este o boal\u0103 care se dezvolt\u0103 &icirc;ncet \u0219i care nu prezint\u0103 simptome la &icirc;nceput, dar cu c&acirc;t &icirc;ntreruperea produc\u021biei de celule de s&acirc;nge cre\u0219te, simptomele urm\u0103toare pot s\u0103 apar\u0103:<\/p>\n<p>Starea de oboseal\u0103 \u0219i sl\u0103biciune<\/p>\n<p>Scurtarea respira\u021biei<\/p>\n<p>Piele palid\u0103<\/p>\n<p>R\u0103nirea \u0219i s&acirc;ngerarea u\u0219oar\u0103<\/p>\n<p>Transpira\u021bia excesiv\u0103 pe timpul nop\u021bii<\/p>\n<p>Temperatura ridicat\u0103<\/p>\n<p>Durerea oaselor<\/p>\n<p>Infec\u021biile recurente<\/p>\n<p>&nbsp;<\/p>\n<h2 id=\"cauze\">Cauze<\/h2>\n<p>Celule circula\u021biei s&acirc;ngelui, celule ro\u0219ii, celule albe \u0219i trombocitele se pot diviza \u0219i replica &icirc;n mai multe celule specializate care cuprind circula\u021bia s&acirc;ngelui. C&acirc;nd apare o muta\u021bie genetic\u0103 &icirc;n celule stem de s&acirc;nge, mielofibroza apare. Nu sunt cunoscute cauzele acestei muta\u021bii. C&acirc;nd celulele stem de s&acirc;nge de muta\u021bie se divizeaz\u0103 \u0219i replic\u0103, acestea trec la muta\u021bie celule noi formate, astfel c\u0103 num\u0103rul de celule cu erori cre\u0219te \u0219i afecteaz\u0103 serios produc\u021bia de s&acirc;nge. De obicei, rezultatul este lipsa celulelor ro\u0219ii \u0219i un surplus de celule albe \u0219i trombocite. Lipsa celulelor ro\u0219ii provoac\u0103 apari\u021bia caracteristicilor \u0219i simptomelor de anemie. M\u0103duva osoas\u0103 care ar trebui s\u0103 fie &icirc;n mod normal moale \u0219i spongioas\u0103, devine cicatrizat\u0103. Genele mutate care apar &icirc;n cele mai multe cazuri de mielofibroz\u0103 sunt denumite JAK2.<\/p>\n<h2>\nFactori de risc<\/h2>\n<p>Cauza mielofibrozei nu este cunoscut\u0103, dar se \u0219tie c\u0103 unii factori pot cre\u0219te riscul. Ace\u0219tia sunt:<\/p>\n<p>V&acirc;rsta &ndash; oamenii de 50 sau 60 de ani au un risc mai mare<\/p>\n<p>O alt\u0103 boal\u0103 a celulelor ro\u0219ii, cum ar fi trombocitemia sau policitemia vera<\/p>\n<p>Expunerea la chimicale industriale, cum ar fi toluen \u0219i benzen<\/p>\n<p>Expunerea la nivele ridicate de radia\u021bii.<\/p>\n<p>&nbsp;<\/p>\n<h2 id=\"complicatii\">Complica\u021bii<\/h2>\n<p>Unele complica\u021bii care pot s\u0103 apar\u0103 din cauza mielofibrozei sunt:<\/p>\n<p>Tensiunea crescut\u0103 a circula\u021biei s&acirc;ngelui &icirc;n ficat<\/p>\n<p>Durere de spate \u0219i abdominal\u0103<\/p>\n<p>Cre\u0219terea &icirc;n alte zone ale corpului<\/p>\n<p>S&acirc;ngerare excesiv\u0103<\/p>\n<p>Durerea oaselor \u0219i articula\u021biei<\/p>\n<p>Leucemie sever\u0103<\/p>\n<p>&nbsp;<\/p>\n<h2 id=\"tratament\">Tratament<\/h2>\n<p>Dac\u0103 simptomele \u0219i semnele vizibile de anemie nu sunt observabile, persoana afectat\u0103 de mielofibroz\u0103 nu are nevoie de tratament. Totu\u0219i, doctorul trebuie s\u0103 monitorizez starea schimb\u0103rilor, simptomelor \u0219i progresului bolii.<\/p>\n<p>Exist\u0103 unele studii care se ocup\u0103 de dezvoltarea unui medicament care va avea drept \u021bint\u0103 muta\u021bia genelor JAK2 care se crede a fi responsabil\u0103 pentru apari\u021bia mielofibrozei.<\/p>\n<p>Dac\u0103 mielofibroza provoac\u0103 anemie, ar trebui luate &icirc;n considerare urm\u0103toarele tratamente:<\/p>\n<p>Transfuzia de s&acirc;nge<\/p>\n<p>Terapia androgen\u0103<\/p>\n<p>Thalidomide \u0219i medicamente aferente<\/p>\n<p>&nbsp;<\/p>\n<p>C&acirc;nd splina m\u0103rit\u0103 provoac\u0103 complica\u021bii, urm\u0103toarele op\u021biuni de tratament pot fi sugerate de doctor:<\/p>\n<p>Splenectomia &ndash; &icirc;ndep\u0103rtarea chirurgical\u0103 a splinei<\/p>\n<p>Chimioterapie<\/p>\n<p>Terapia cu radia\u021bii<\/p>\n<p>&nbsp;<\/p>\n<p>Un alt tratament poate fi transplantului celulelor stem de la un donator potrivit. Acesta este unicul tratament care poate avea posibilitatea de a trata mielofibroza, dar prezint\u0103 un mare risc pentru efectele secundare fatale. &nbsp;<\/p>\n","protected":false},"featured_media":0,"template":"","class_list":["post-70826","disease","type-disease","status-publish","hentry"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v24.3 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Mielofibroza - Humanitas.net<\/title>\n<meta name=\"robots\" content=\"noindex, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<meta property=\"og:locale\" content=\"ro_RO\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Mielofibroza - Humanitas.net\" \/>\n<meta property=\"og:description\" content=\"Defini\u021bie Mielofibroza este o boal\u0103 periculoas\u0103 a m\u0103duvei osoase. 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