Objective : To determine the effects of electromagnetic fields produced by mobile phones on the Non stress test
variables.
Study Design: This study was conducted in Mansoura university hospital, antenatal care unit on one hundred normal
pregnant women undergoing non stress test. The result of non stress tests were documented to bc normal for twenty
minutes in the absence of mobile phone in the examining room, then the tests were repeated while the subjects were
holding the mobile (the same type) on ringing mode for 5 minutes.
Results : Electromagnetic fields emitted by mobile phones had no effects of acceleration or deceleration. However,
there was no statistically significant increase in baseline fetal heart rate.
Conclusions: To our knowledge, these are the first results showing an increase in base line fetal heart rate under the
effects of electromagnetic field emitted by cellular Phones, however further controlled randomized studies arc
necessary to detect a definite correlation coefficient.