Contraction of exposed vessels of cord.
Patient may lie on cord.
Twenty-five per cent die as a rule under best conditions.
Fifty per cent when left to nature.
Treatment of Cephalic Presentation.—
Extraction of child or reposition of cord, depending upon the degree of dilatation.
If cervix is small, replace and fill cervix with Vorhees bag.
When cervix admits hand, either replace or do version and extraction.
With head engaged, reposition or version is not possible.
Child living:—Rapid delivery with forceps.