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Regression Toward the Mean01:52

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Regression toward the mean (“RTM”) is a phenomenon in which extremely high or low values—for example, and individual’s blood pressure at a particular moment—appear closer to a group’s average upon remeasuring. Although this statistical peculiarity is the result of random error and chance, it has been problematic across various medical, scientific, financial and psychological applications. In particular, RTM, if not taken into account, can interfere when researchers try to extrapolate results...

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Characterising Forces Applied During the Simulated Management of Impacted Fetal Head: Pre-Clinical Methods Study.

Dawn Parris1,2, Yang Xue3,4, Thurga Navaseelan3,4

  • 1EGA Institute for Women's Health, London, UK.

BJOG : an International Journal of Obstetrics and Gynaecology
|December 8, 2025
PubMed
Summary

A sensorised surgical glove shows promise for training obstetricians in managing impacted fetal head. The study found consistent force application via fingertips, highlighting areas for glove improvement, such as wireless functionality.

Keywords:
caesarean sectionemergency caesareanimpacted fetal headsimulation training

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Area of Science:

  • Medical Simulation
  • Surgical Technology
  • Obstetrics and Gynecology

Background:

  • Impacted fetal head is a critical obstetric emergency requiring skilled management.
  • Effective training tools are essential for improving obstetricians' proficiency in managing fetal head impaction.
  • Sensorised surgical gloves offer a novel approach to capturing biomechanical data during procedures.

Purpose of the Study:

  • To evaluate a sensorised surgical glove as a training tool for impacted fetal head management.
  • To assess the location and amount of force applied by operators during simulated fetal head disimpaction.
  • To identify areas for improvement in the sensorised glove technology.

Main Methods:

  • A feasibility study was conducted during a national course on rotational vaginal birth and complex cesarean birth.
  • Obstetricians of varying seniority performed simulated fetal head disimpaction using a sensorised glove.
  • Force data from 12 sensors were captured, and thematic analysis of questionnaire responses was performed.

Main Results:

  • Fingertip sensors consistently recorded the highest maximum force values across participants.
  • Palmar and dorsal sensors showed greater variability, indicating differences in hand positioning and technique.
  • Force application was characterized by brief, targeted bursts rather than continuous pressure.
  • Participants suggested improvements including wireless functionality and a standardized training model.

Conclusions:

  • The developed sensorised glove has potential as an effective training tool for impacted fetal head management.
  • Consistent force application through fingertips suggests their importance for precision and control.
  • Variability in force application across different hand regions highlights the need for standardized techniques and further glove development.