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Related Experiment Videos

Compression stimuli increase the efficacy of breast pump function

N P Alekseev1, V I Ilyin, V K Yaroslavski

  • 1Institute of Physiology of St. Petersburg State University, Russia.

European Journal of Obstetrics, Gynecology, and Reproductive Biology
|May 13, 1998
PubMed
Summary

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A novel breast pump design, mimicking infant suckling, enhances milk ejection and secretion. This improved breast milk expression dynamics, with prolactin levels rising after 10 minutes of stimulation.

Area of Science:

  • Lactation physiology
  • Biomedical engineering

Background:

  • Breast milk expression is crucial for infant nutrition.
  • Breast pump technology aims to mimic natural infant suckling for efficient milk removal.

Purpose of the Study:

  • To investigate milk ejection dynamics and prolactin concentration during breast milk expression using a novel breast pump.
  • To evaluate the efficacy of a new breast pump design simulating infant suckling.

Main Methods:

  • Studied 82 lactating women using a new breast pump design.
  • The pump simulates amplitude, duration, and frequency of infant suckling stimuli.
  • Measured milk ejection rates, intramammary pressure, and blood prolactin levels.

Main Results:

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  • A breast pump with vacuum and compression stimuli at 1 Hz showed periodic milk ejection.
  • Reduced milk ejection rates (1.5-2 fold) occurred when compression was removed.
  • Prolactin levels did not change initially but increased 1.3-1.5 fold by 25 minutes.

    • Conclusions:

    • Introducing a tactile component enhances milk secretion and flow.
    • The novel breast pump design improves breast milk expression dynamics.
    • The findings suggest potential for enhanced lactation support through optimized breast pump technology.