Geschreven door: Charlotte de Deugd
Gepubliceerd op: 11/09/2025
Een placenta praevia is een placenta die (gedeeltelijk) voor de inwendige opening van de baarmoedermond ligt. Deze aandoening komt voor 1 op de 111 tot 333 vrouwen ten tijde van de bevalling. De diagnose wordt gesteld met een inwendige echo. Als bij de 20 weken echo de placenta volledig, deels of dichtbij de inwendige opening van de baarmoeder ligt, maakt de echoscopist bij 30 tot 32 weken opnieuw een echo om de placentaligging te bekijken. Als de placencenta nog steeds laag ligt neemt het ziekenhuis de zwangerschapszorg over. Aan de hand van de afstand van de placenta tot het ostium internum, maakt de verloskundige of gynaecoloog de inschatting hoe veilig het is en hoe groot de kans van slagen is op een vaginale bevalling.
Wanneer spreek je precies van een placenta praevia en welke vormen zijn er? Hoe wordt een placenta praevia gediagnosticeerd? Welke factoren dragen bij aan het ontwikkelen van een placenta praevia? Wat zijn mogelijke risico’s van een placenta praevia? Wat is het huidige beleid qua vaginale bevalling versus een keizersnede en de timing hiervan? En wat is de onderbouwing van het beleid? In dit artikel besteden we aandacht aan deze vragen rondom placenta praevia.
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