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Intrauterine Telemetry to Measure Mouse Contractile Pressure In Vivo

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Cambios en la Posición del Dispositivo Intrauterino Desde la Inserción Inicial hasta el Control

Grace Swain¹, Karen Mizia^1,2, Elizabeth Luxford²

¹Royal North Shore Hospital Sydney New South Wales Australia.

Australasian journal of ultrasound in medicine

|February 4, 2026

Resumen

Los dispositivos intrauterinos (DIU) rara vez migran después de la inserción en mujeres australianas. Las ecografías post-inserción son generalmente innecesarias a menos que surjan síntomas, lo que simplifica el cuidado del DIU.

Palabras clave:

anticoncepción hormonal migración de dispositivos intrauterinos dispositivos intrauterinos anticoncepción reversible de acción prolongada ecografía

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Área de la Ciencia:

Salud Reproductiva; Dispositivos Médicos; Tecnología de Ultrasonido

Sus antecedentes:

Existen datos limitados sobre la migración de dispositivos anticonceptivos intrauterinos (DIU) en poblaciones australianas.; Las pautas actuales ofrecen recomendaciones ambiguas para los controles post-inserción del DIU (5-8 semanas).; La utilidad clínica de las ecografías pélvicas para verificar la posición del DIU requiere una mayor elucidación.

Objetivo del estudio:

Evaluar la migración y los cambios de posición del DIU en una cohorte australiana.; Determinar la utilidad clínica de las ecografías post-inserción para la colocación del DIU.

Principales métodos:

Se realizó un estudio de cohorte retrospectivo durante tres años en ocho sitios de Sydney.; Se recopilaron datos de 645 casos que involucraron la inserción o el intercambio de DIU bajo guía ecográfica.

Principales resultados:

Inicialmente, el 5% de los DIU estaban en posición subóptima; el 98.5% de los DIU en posición óptima se mantuvieron estables después del procedimiento.; El 1.3% de los DIU se desplazaron a una posición subóptima, a menudo asociada con anomalías uterinas (75%).; De los DIU en posición subóptima, el 84% migraron a la posición fúndica óptima en 5-8 semanas.

Conclusiones:

Es poco probable que los DIU insertados correctamente en el fondo cambien de posición sin anomalías uterinas subyacentes o histerotomía previa.; La mayoría de los DIU migran a una posición adecuada, lo que sugiere que los controles y ecografías de rutina de 5-8 semanas pueden ser innecesarios.; La ecografía debe reservarse para pacientes sintomáticas o cuando las hebras del DIU no sean palpables.