Evaluation of salivary and vaginal electrical resistance for determination of the time of ovulation
Fazleabas, A.T.; Segraves, M.M.; Khan-Dawood, F.S.
International Journal of Fertility 35(2): 106-111
1990
ISSN/ISBN: 0020-725X PMID: 1970978 Document Number: 366976
The usefulness of changes in salivary and vaginal electrical resistance (SER and VER) measurements for timing ovulation was evaluated in 15 cycles. A peak in mean SER was observed seven to eight days before the LH peak (five to nine days before the thermal nadir). The nadir of mean VER coincided with the day of maximum LH and was significantly correlated with the day of the thermal nadir. Use of SER peak and the rise of VER from its nadir in a protocol for timing insemination yielded correct timing in 93.3% (14/15) of cycles. These findings substantiate earlier reports indicating that there is a useful relationship between SER and VER trends and ovulation, which may be employed for accurate scheduling of inseminations and other procedures.