{"id":5587,"date":"2018-07-18T19:12:51","date_gmt":"2018-07-18T17:12:51","guid":{"rendered":"https:\/\/asscat-hepatitis.org\/?p=5587"},"modified":"2018-07-18T19:12:51","modified_gmt":"2018-07-18T17:12:51","slug":"un-estudi-preten-validar-una-prova-per-detectar-lhepatitis-c-en-un-unic-pas","status":"publish","type":"post","link":"https:\/\/asscat-hepatitis.org\/ca\/un-estudi-preten-validar-una-prova-per-detectar-lhepatitis-c-en-un-unic-pas\/","title":{"rendered":"Un estudi pret\u00e9n validar una prova per detectar l&#8217;hepatitis C en un \u00fanic pas"},"content":{"rendered":"<p>[et_pb_section bb_built=&#8221;1&#8243; disabled_on=&#8221;off|off|off&#8221; _builder_version=&#8221;3.0.106&#8243; custom_margin=&#8221;|||&#8221; custom_padding=&#8221;0px||0px|&#8221; next_background_color=&#8221;#000000&#8243;][et_pb_row custom_padding=&#8221;0px||0px|&#8221; _builder_version=&#8221;3.0.106&#8243; background_size=&#8221;initial&#8221; background_position=&#8221;top_left&#8221; background_repeat=&#8221;repeat&#8221;][et_pb_column type=&#8221;4_4&#8243;][et_pb_post_title author=&#8221;off&#8221; date_format=&#8221;d\/m\/Y&#8221; comments=&#8221;off&#8221; featured_placement=&#8221;background&#8221; text_background=&#8221;on&#8221; text_bg_color=&#8221;#ffffff&#8221; module_class=&#8221;ac-post-title-section-0&#8243; _builder_version=&#8221;3.0.106&#8243; title_font=&#8221;Montserrat|600|||||||&#8221; title_text_color=&#8221;#2d2d2d&#8221; title_letter_spacing=&#8221;-1px&#8221; title_line_height=&#8221;1.2em&#8221; meta_font=&#8221;Open Sans||||||||&#8221; meta_text_color=&#8221;rgba(45,45,45,0.5)&#8221; text_orientation=&#8221;center&#8221; custom_margin=&#8221;|||&#8221; custom_padding=&#8221;|20px|20px|20px&#8221; title_text_align=&#8221;center&#8221; meta_font_size=&#8221;13px&#8221; meta_text_align=&#8221;center&#8221;]<\/p>\n<p>&nbsp;<\/p>\n<p>[\/et_pb_post_title][\/et_pb_column][\/et_pb_row][\/et_pb_section][et_pb_section bb_built=&#8221;1&#8243; specialty=&#8221;on&#8221; _builder_version=&#8221;3.0.106&#8243; custom_padding=&#8221;0px|||&#8221; prev_background_color=&#8221;#000000&#8243; next_background_color=&#8221;#000000&#8243;][et_pb_column type=&#8221;2_3&#8243; specialty_columns=&#8221;2&#8243;][et_pb_row_inner admin_label=&#8221;Fila&#8221; _builder_version=&#8221;3.0.106&#8243;][et_pb_column_inner type=&#8221;4_4&#8243; saved_specialty_column_type=&#8221;2_3&#8243;][et_pb_text admin_label=&#8221;Contenido Entrada 1&#8243; ul_type=&#8221;square&#8221; module_class=&#8221;ac-posts-content&#8221; _builder_version=&#8221;3.0.106&#8243; text_orientation=&#8221;justified&#8221; background_layout=&#8221;light&#8221;]<\/p>\n<h3>Les conclusions de l&#8217;estudi posen de relleu l&#8217;exist\u00e8ncia d&#8217;una alta prevalen\u00e7a d&#8217;hepatitis C entre persones usu\u00e0ries de drogues injectables a Espanya, aix\u00ed com la urg\u00e8ncia de derivar aquesta poblaci\u00f3 a l&#8217;atenci\u00f3 m\u00e8dica.<\/h3>\n<p>L&#8217;\u00fas de l&#8217;algortime convencional el VHC -que consisteix en una prova d&#8217;anticossos seguida d&#8217;una prova confirmat\u00f2ria de c\u00e0rrega viral del virus de l&#8217;hepatitis C (ARN del VHC)- suposa una dificultat per realitzar de forma efectiva el cribratge i derivaci\u00f3 a l&#8217;atenci\u00f3 m\u00e8dica de persones usu\u00e0ries de drogues injectables (UDI) infectades pel VHC, ja que es produeix una p\u00e8rdua de seguiment de persones UDI entre la primera prova (d&#8217;anticossos del VHC) i la prova confirmat\u00f2ria (ARN del VHC). Per aquest motiu, l&#8217;objectiu de l&#8217;estudi HepCdetect II, presentat al VI Simp\u00f2sium sobre l&#8217;Atenci\u00f3 de l&#8217;Hepatitis en Usuaris de Subst\u00e0ncies que es va celebrar a principis de setembre a la ciutat de Jersey (EUA), va ser validar la implementaci\u00f3 en la vida real d&#8217;una prova alternativa d&#8217;un sol pas basada en la detecci\u00f3 de l&#8217;ARN del VHC en mostres de sang seca (DBS, en les seves sigles en angl\u00e8s) per primer cop a Espanya, i avaluar el grau de sensibilitzaci\u00f3 per l&#8217;hepatitis C i la vinculaci\u00f3 de les persones UDI a l&#8217;atenci\u00f3 m\u00e8dica.<\/p>\n<p>L&#8217;HepCdetect II \u00e9s un estudi de tipus transversal que va incloure a 232 persones que eren usu\u00e0ries de drogues injectables en actiu ateses al Centre de Reducci\u00f3 de Danys &#8220;El Local&#8221; (Barcelona), una de les \u00e0rees de tr\u00e0fic de drogues m\u00e9s importants a Espanya.<\/p>\n<p>Cada participant es va sotmetre a proves r\u00e0pides d&#8217;anticossos enfront al VHC i se&#8217;ls hi va recollir una mostra de sang seca per mitj\u00e0 de la punci\u00f3 en un dit i una altra de plasma.<\/p>\n<p>Cada mostra de sang seca va ser analitzada en cerca d&#8217;ARN del VHC utilitzant una prova denominada RT-PCR\u00a0(sigles en angl\u00e8s de reacci\u00f3 en cadena de la polimerasa amb transcriptasa inversa) i els resultats es van comparar amb el m\u00e8tode de refer\u00e8ncia (per exemple, c\u00e0rrega viral en plasma). Tamb\u00e9 es van determinar els marcadros serol\u00f2gics del VIH i del virus de l&#8217;hepatitis B (VHB), i es van recopilar dades sobre el comportament i la vinculaci\u00f3 als serveis d&#8217;atenci\u00f3 m\u00e8dica.<\/p>\n<p><strong>L&#8217;assaig d&#8217;ARN del VHC realitzat a partir de les mostres de sang seca analitzades va revelar una elevada sensibilitat (96,6%) i especificitat (100%)<\/strong><strong>.<\/strong>\u00a0Els participants portaven una mitjana de 16 anys de temps com a usuaris de drogues injectables, i el 55,2% d&#8217;ells comaprtia la parafern\u00e0lia d&#8217;injecci\u00f3 amb altres persones. En total, un 86,5% de les persones incloses a l&#8217;assaig havien estat algun cop infectades pel VHC (dels quals 66,1% eren usuaris recents de drogues injectables [5 anys o menys]) i el 23,4% havien iniciat algun cop la ter\u00e0pia enfront a aquest virus hep\u00e0tic.<\/p>\n<p><strong>La prevalen\u00e7a total de la infecci\u00f3 pel VHC va ser del 68,1% i el 14,3% de les persones participants desconeixia que estava infectada<\/strong>. De les persones amb una infecci\u00f3 coneguda pel VHC, el 25% es trobava sota l&#8217;atenci\u00f3 del metge especialista.<\/p>\n<p><strong>La taxa de coinfecci\u00f3 pel VHC i el VIH va ser del 28,5%.\u00a0<\/strong>En general, un 40,1% dels participants havien estat exposats al virus de l&#8217;hepatitis B (VHB) i un 43,1% no havien estat protegits (29% d&#8217;elles eres migrants).<\/p>\n<p>En les seves conclusions, l&#8217;equip d&#8217;investigadors apunta que l&#8217;estrat\u00e8gia de diagn\u00f2stic en un sol pas plantejada en aquest estudi representa una manera f\u00e0cil o factible d&#8217;augmentar de forma substancial la identificaci\u00f3 i coneixement de les infeccions pel VHC i, actualment, s&#8217;est\u00e0 ampliant a altres centres de reducci\u00f3 de danys.<\/p>\n<p>No obstant, tamb\u00e9 senyalen la necessitat de redoblar els esfor\u00e7os per millorar les taxes de derivaci\u00f3 de l&#8217;atenci\u00f3 m\u00e8dica especialitzada en l&#8217;hepatitis C entre la poblaci\u00f3 de persones usu\u00e0ries de drogues injectables.<\/p>\n<p>&nbsp;<\/p>\n<p>Font:\u00a0<a href=\"http:\/\/www.gtt-vih.org\/\">gTt-VIH<\/a><\/p>\n<p>Refer\u00e8ncia:\u00a0Maj\u00f3 J, Gasulla L, Mu\u00f1oz R, Fern\u00e1ndez L, Fern\u00e1ndez G, Hern\u00e1ndez J, et al.<strong>\u00a0<\/strong>A one-step diagnosis algorithm reveals high burden of hepatitis C among PWID in Spain and the urgency for improved linkage-to-care.\u00a0Presented at: The 6th International Symposium on Hepatitis Care in Substance Users; Sept. 6-8, 2017; Jersey City, New Jersey.<\/p>\n<p>[\/et_pb_text][\/et_pb_column_inner][\/et_pb_row_inner][et_pb_row_inner admin_label=&#8221;Fila&#8221; custom_padding=&#8221;0px|||&#8221; _builder_version=&#8221;3.0.105&#8243; custom_margin=&#8221;|||&#8221;][et_pb_column_inner type=&#8221;4_4&#8243; saved_specialty_column_type=&#8221;2_3&#8243;][et_pb_post_title admin_label=&#8221;Metadatos &#8211; Fecha \u00daltima actualizaci\u00f3n&#8221; title=&#8221;off&#8221; author=&#8221;off&#8221; date_format=&#8221;d\/m\/Y&#8221; categories=&#8221;off&#8221; comments=&#8221;off&#8221; featured_image=&#8221;off&#8221; _builder_version=&#8221;3.0.106&#8243; title_text_align=&#8221;left&#8221; meta_font=&#8221;Open Sans||||||||&#8221; meta_text_align=&#8221;left&#8221; meta_font_size=&#8221;13px&#8221; meta_text_color=&#8221;#0082ca&#8221; border_width_top=&#8221;1px&#8221; border_color_top=&#8221;#cccccc&#8221; custom_margin=&#8221;50px|||&#8221; custom_padding=&#8221;10px|||&#8221; custom_css_before=&#8221;content:%22\u00daltima actualizaci\u00f3n:%22;&#8221; global_module=&#8221;3449&#8243; saved_tabs=&#8221;all&#8221;]<\/p>\n<p>&nbsp;<\/p>\n<p>[\/et_pb_post_title][\/et_pb_column_inner][\/et_pb_row_inner][\/et_pb_column][et_pb_column type=&#8221;1_3&#8243;][et_pb_sidebar orientation=&#8221;right&#8221; area=&#8221;et_pb_widget_area_8&#8243; module_class=&#8221;ac-posts-sidebar&#8221; _builder_version=&#8221;3.0.106&#8243; global_module=&#8221;3198&#8243; saved_tabs=&#8221;all&#8221;]<\/p>\n<p>&nbsp;<\/p>\n<p>[\/et_pb_sidebar][\/et_pb_column][\/et_pb_section][et_pb_section bb_built=&#8221;1&#8243; _builder_version=&#8221;3.0.106&#8243; custom_padding=&#8221;||0px|&#8221; prev_background_color=&#8221;#000000&#8243; module_class=&#8221;ac-post-section-share-rrss&#8221;][et_pb_row custom_padding=&#8221;||0px|&#8221; custom_margin=&#8221;|||&#8221; _builder_version=&#8221;3.0.105&#8243; background_size=&#8221;initial&#8221; background_position=&#8221;top_left&#8221; background_repeat=&#8221;repeat&#8221;][et_pb_column type=&#8221;4_4&#8243;][et_pb_text _builder_version=&#8221;3.0.106&#8243; 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