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Prenatal Ultrasound showing overdeveloped/thicker papillary muscle
marjo20 posted:
I recently had my 20 week ultrasound. The ultrasound tech informed the doctor the papillary muscle was more visible than normal. The doctor rescheduled an ultrasound for 3 weeks due to the baby's positioning they couldn't get a good overall view of the heart to make sure that there isn't any other issues. I am very worried. What does this mean?
cardiostarusa1 responded:

In general, as reported, the papillary muscles contract during the heart's pumping phase (systole) to prevent regurgitation (a back-flow of blood) into the atria (upper chamber/s). A hypertrophic or overdeveloped or thickened papillary muscle may/can affect this prevention aspect, which may/can then lead to other associated problems.

Papillary muscle

How the Heart Pumps

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Most important, communicate/interact well with your doctors.

Hope all goes as well as possible with the pregnancy.

Take care,


WebMD member (since 8/99)



WebMD/WebMD forums DOES NOT provide medical advice, diagnosis or treatment.

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