propedeutica obstetrica
TRANSCRIPT
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PROPEDEUTICA OBSTETRICAPROPEDEUTICA OBSTETRICA
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MODALIDADES DE PRESENTACIÓN
96.6296.62
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La exploración vaginal La exploración vaginal nos aporta gran nos aporta gran información tal como:información tal como:
Las condiciones del cuello. Las condiciones del cuello.
Características de la pelvis Características de la pelvis materna. materna.
La presentación fetal.La presentación fetal.
La estación fetal.La estación fetal.
Las posibilidades de que la Las posibilidades de que la inducción tenga probabilidades de inducción tenga probabilidades de ser exitosa o noser exitosa o no
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TACTO VAGINAL
El tacto vaginal es la técnica bimanual que El tacto vaginal es la técnica bimanual que consiste en la introducción de los dedos índice y consiste en la introducción de los dedos índice y medio de la mano del explorador en la vagina, medio de la mano del explorador en la vagina, mientras que la otra mano presiona a través de mientras que la otra mano presiona a través de la parte baja del vientre.la parte baja del vientre.
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SITUACIÓN
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CONSISTENCIACONSISTENCIA
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BORRAMIENTO Y DILATACIÓNBORRAMIENTO Y DILATACIÓN
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• BORRAMIENTO BORRAMIENTO
– Es el fenómeno de acortamiento del conducto cervical.
– Tiene lugar antes y especialmente durante el primer periodo del parto.
– Determina la expulsión del tapón mucoso a medida que el canal cervical vaya acortándose.
• DILATACIÓN DILATACIÓN
– Corresponde al diámetro de abertura cervical.
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Cuello acortadoCuello acortado
Cuello borradoCuello borrado
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• El borramiento se expresa en porciento.
• No modificado se califica de 0% • Grosor inferior a 0.25cm está 100% borrado.
• La dilatación del orificio cervical se indica en centímetros.
– Un diámetro de 10cm significa una dilatación completa.
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• Durante el periodo de dilatación del parto se distinguen dos fases:
• Latente
• Activa
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• FASE LATENTE
• Dificil de determinar.
• Se inicia cuando la madre percibe contracciones irregulares poco intensas.
• Termina cuando se alcanza una dilatación de 3-5 cm.
Cuello iniciando la dilataciónCuello iniciando la dilatación
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• FASE ACTIVAFASE ACTIVA
• Comienza cuando la dilatación cervical ha alcanzado 2-3cm.
• La velocidad de la dilatación varia según la paridad.
• En nulípara la velocidad es de 1.2 cm/h, en multíparas entre 1.2 – 1.5 cm/h.
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• Dentro de este periodo se distinguen varias fases:
• Fase de aceleraciónFase de aceleración: desde los 2 cm de dilatación hasta los 4cm.
• Fase de máximaFase de máxima velocidad: desde los 4 cm hasta los 9 cm de dilatación.
Cuello a dilatación completaCuello a dilatación completa
Cuello con dilatación avanzadaCuello con dilatación avanzada
• Fase de Fase de desaceleracióndesaceleración: : desde los 9cm desde los 9cm hasta la dilatación hasta la dilatación completa.completa.