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An in vivo comparative study of the pregnant and nonpregnant cervix using electrical impedance measurements
Author(s) -
O'Connell M. P.,
Tidy J.,
Wisher S. J.,
Avis N. J.,
Brown B. H.,
Lindow S. W.
Publication year - 2000
Publication title -
bjog: an international journal of obstetrics and gynaecology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.157
H-Index - 164
eISSN - 1471-0528
pISSN - 1470-0328
DOI - 10.1111/j.1471-0528.2000.tb10410.x
Subject(s) - cervix , pregnancy , electrical impedance , medicine , obstetrics , uterine cervix , electrical current , in vivo , gynecology , biomedical engineering , biology , physics , electrical engineering , cancer , carcinoma , genetics , quantum mechanics , engineering , microbiology and biotechnology
Electrical impedance may be measured using electrodes on the surface of the cervix and recording the potential that results when an electrical current is passed. Increased hydration of the cervix has been described throughout pregnancy and occurs most dramatically before labour. This study compared tissue impedance measurements of the pregnant and non‐pregnant cervix and found a statistically significant lower value ( P < 0.001 ) in pregnancy. Further work may show that such measurements alter in relation to labour onset.