{"id":5946,"date":"2023-09-20T07:53:35","date_gmt":"2023-09-20T05:53:35","guid":{"rendered":"https:\/\/wordpress-famicord-ch.empressia.dev\/pregnancy-zone-2\/%pregnancy_zone_category%\/genetischer-ultraschall"},"modified":"2026-01-08T13:23:36","modified_gmt":"2026-01-08T12:23:36","slug":"genetischer-ultraschall","status":"publish","type":"pregnancy_zone","link":"https:\/\/famicord.lu\/fr\/pregnancy-zone-2\/informations-sur-la-grossesse\/genetischer-ultraschall","title":{"rendered":"Ultrasons g\u00e9n\u00e9tiques"},"content":{"rendered":"

\u00c9chographie g\u00e9n\u00e9tique – quand doit-on la pratiquer ?<\/h2>\n

L’\u00e9chographie g\u00e9n\u00e9tique est \u00e9galement appel\u00e9e \u00e9chographie du premier trimestre. Ce nom vient du fait que l’examen se concentre notamment sur la d\u00e9tection d’\u00e9ventuelles anomalies g\u00e9n\u00e9tiques. L’\u00e9chographie est r\u00e9alis\u00e9e entre la 11e et la 14e semaine de grossesse. L’\u00e9chographie g\u00e9n\u00e9tique fait partie des \u00e9chographies obligatoires pendant la grossesse, avec l’\u00e9chographie \u00e0 moyen terme (2e trimestre), l’\u00e9chographie du 3e trimestre et l’\u00e9chographie au moment de l’accouchement.<\/p>\n

L’\u00e9chographie du premier trimestre ne devrait pas \u00eatre abandonn\u00e9e au profit des tests d’ADN f\u0153tal, de plus en plus populaires. Selon les recommandations actuelles, les NIPT sont recommand\u00e9s en cas de suspicion d’anomalies g\u00e9n\u00e9tiques ou en cas de risque moyen dans un test composite. L’\u00e9chographie g\u00e9n\u00e9tique joue un r\u00f4le tr\u00e8s important dans le diagnostic en d\u00e9but de grossesse.<\/p>\n

L’\u00e9chographie g\u00e9n\u00e9tique – que permet-elle d’examiner ?<\/h2>\n

Lors de l’\u00e9chographie g\u00e9n\u00e9tique, le gyn\u00e9cologue \u00e9value la situation de la grossesse, sa viabilit\u00e9, l’anatomie du f\u0153tus et calcule le risque d’anomalies chromosomiques et de pr\u00e9-\u00e9clampsie dans un test dit combin\u00e9 (qui comprend non seulement l’\u00e9chographie mais aussi la biochimie). L’\u00e2ge de la grossesse est \u00e9galement d\u00e9termin\u00e9. Si la date d’\u00e9ch\u00e9ance calcul\u00e9e diff\u00e8re de 7 jours ou plus de la date des derni\u00e8res r\u00e8gles, elle devient la date d\u00e9terminante jusqu’\u00e0 la fin de la grossesse. Elle ne devrait plus \u00eatre modifi\u00e9e lors des \u00e9chographies ult\u00e9rieures.<\/p>\n

L’\u00e9valuation de la clart\u00e9 nucale est un \u00e9l\u00e9ment important de l’\u00e9chographie g\u00e9n\u00e9tique. Une image anormale peut \u00eatre associ\u00e9e \u00e0 des maladies telles que le syndrome de Down. Afin de rendre l’\u00e9valuation des risques plus pr\u00e9cise, il convient de prendre en compte, outre la clart\u00e9 nucale, les ant\u00e9c\u00e9dents m\u00e9dicaux de la m\u00e8re et des param\u00e8tres sanguins tels que la b\u00eata-hCG libre, la PAPP-A et le PlGF.<\/p>\n","protected":false},"excerpt":{"rendered":"

Pendant la grossesse, chaque future m\u00e8re devrait passer les quatre \u00e9chographies obligatoires. L’une d’entre elles est l’\u00e9chographie g\u00e9n\u00e9tique. Quand doit-elle \u00eatre effectu\u00e9e et que contr\u00f4le-t-on lors de cet examen ?<\/p>\n","protected":false},"author":2,"featured_media":5192,"template":"","pregnancy_zone_category":[91],"class_list":["post-5946","pregnancy_zone","type-pregnancy_zone","status-publish","has-post-thumbnail","hentry","pregnancy_zone_category-informations-sur-la-grossesse"],"acf":[],"yoast_head":"\n\u00c9chographie g\u00e9n\u00e9tique de grossesse | FamiCord<\/title>\n<meta name=\"description\" content=\"Quand r\u00e9aliser l\u2019\u00e9chographie g\u00e9n\u00e9tique au 1er trimestre ? 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