{"id":3373,"date":"2026-02-26T16:55:09","date_gmt":"2026-02-26T13:55:09","guid":{"rendered":"https:\/\/wiki.voka.io\/glossary\/dismenorreia\/"},"modified":"2026-02-26T16:55:04","modified_gmt":"2026-02-26T13:55:04","slug":"dismenorreia","status":"publish","type":"glossary_item","link":"https:\/\/wiki.voka.io\/pt\/glossario\/dismenorreia\/","title":{"rendered":"Dismenorreia"},"content":{"rendered":"\n<p>A dismenorreia (do grego <em>dys<\/em> &#8211; desordem, <em>men<\/em> &#8211; m\u00eas, <em>rhoia<\/em> &#8211; fluxo) \u00e9 uma doen\u00e7a ginecol\u00f3gica comum que se manifesta por uma s\u00edndrome de dor intensa na parte inferior do abd\u00f3men, que ocorre ciclicamente na v\u00e9spera ou durante a menstrua\u00e7\u00e3o. <\/p>\n\n<p>Associa-se frequentemente a perturba\u00e7\u00f5es metab\u00f3lico-end\u00f3crinas e psicovegetativas.<\/p>\n\n<h2 class=\"wp-block-heading\" id=\"h-&#x44D;&#x442;&#x438;&#x43E;&#x43B;&#x43E;&#x433;&#x438;&#x44F;-&#x438;-&#x43F;&#x430;&#x442;&#x43E;&#x444;&#x438;&#x437;&#x438;&#x43E;&#x43B;&#x43E;&#x433;&#x438;&#x44F;\"><strong>Etiologia e fisiopatologia<\/strong><\/h2>\n\n<p><strong>A dismenorreia prim\u00e1ria (funcional)<\/strong> n\u00e3o est\u00e1 associada a altera\u00e7\u00f5es anat\u00f3micas dos \u00f3rg\u00e3os p\u00e9lvicos. O seu mecanismo deve-se a uma s\u00edntese e a um metabolismo deficiente dos eicosan\u00f3ides no endom\u00e9trio: a hiperprodu\u00e7\u00e3o de prostaglandinas F2\u03b1 e E2 e de leucotrienos provoca contrac\u00e7\u00f5es potentes, esp\u00e1sticas e discordantes do miom\u00e9trio.   <\/p>\n\n<p>A press\u00e3o intra-uterina pode exceder 400 mmHg, o que \u00e9 superior \u00e0 press\u00e3o de perfus\u00e3o nas art\u00e9rias uterinas. Isto leva a uma isqu\u00e9mia transit\u00f3ria do miom\u00e9trio, \u00e0 acumula\u00e7\u00e3o de metabolitos da glic\u00f3lise anaer\u00f3bica e \u00e0 irrita\u00e7\u00e3o das termina\u00e7\u00f5es nervosas dolorosas (&#8220;angina uterina&#8221;).  <\/p>\n\n<p><strong>A dismenorreia secund\u00e1ria (org\u00e2nica)<\/strong> \u00e9 causada por processos patol\u00f3gicos que obstruem a sa\u00edda de sangue ou irritam o peritoneu.<\/p>\n\n<h2 class=\"wp-block-heading\" id=\"h-&#x43A;&#x43B;&#x438;&#x43D;&#x438;&#x447;&#x435;&#x441;&#x43A;&#x43E;&#x435;-&#x437;&#x43D;&#x430;&#x447;&#x435;&#x43D;&#x438;&#x435;\"><strong>Significado cl\u00ednico<\/strong><\/h2>\n\n<p>A dismenorreia secund\u00e1ria, que ocorre n\u00e3o a partir da menarca, mas mais tarde na vida, tende a progredir e a resistir aos AINEs. \u00c9 um sintoma cl\u00ednico fundamental da <strong>endometriose<\/strong> genital externa e da <strong>adenomiose<\/strong>, bem como dos processos hiperpl\u00e1sicos do endom\u00e9trio. A natureza da dor pode indicar a localiza\u00e7\u00e3o do processo: a irradia\u00e7\u00e3o para o reto ou para o c\u00f3ccix indica frequentemente o envolvimento do espa\u00e7o retrocervical e dos ligamentos sacrococervicais.    <\/p>\n","protected":false},"excerpt":{"rendered":"<p>A dismenorreia (do grego <em>dys<\/em> &#8211; desordem, <em>men<\/em> &#8211; m\u00eas, <em>rhoia<\/em> &#8211; fluxo) \u00e9 uma doen\u00e7a ginecol\u00f3gica comum que se manifesta por uma s\u00edndrome de dor intensa na parte inferior do abd\u00f3men, que ocorre ciclicamente na v\u00e9spera ou durante a menstrua\u00e7\u00e3o. <\/p>\n","protected":false},"featured_media":0,"template":"","class_list":["post-3373","glossary_item","type-glossary_item","status-publish","hentry"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v25.0 (Yoast SEO v26.5) - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Dismenorreia: defini\u00e7\u00e3o m\u00e9dica e vis\u00e3o geral | Voka Wiki<\/title>\n<meta name=\"description\" content=\"A dismenorreia (do grego dys - 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