A textbook of obstetrics . cimen presented by Dr. Alex. Fulton). from dee]) tears when the instrument slips, as it will, and fromextensive sloughs after delivery. If the pelvic extremity of the hydrocephalic fetus presents,—as it does in almost a third of all eases,—and if the head remainsinaccessible above the superior strait, so that it can not easily bepunctured, the spinal canal may be opened, a catheter be- passedthrough it into the cranial cavity (Van Huevels method), andthe fluid thus be evacuated (Fig. 394). Usually, however, thereis no special difficulty or danger in the delivery of t
A textbook of obstetrics . cimen presented by Dr. Alex. Fulton). from dee]) tears when the instrument slips, as it will, and fromextensive sloughs after delivery. If the pelvic extremity of the hydrocephalic fetus presents,—as it does in almost a third of all eases,—and if the head remainsinaccessible above the superior strait, so that it can not easily bepunctured, the spinal canal may be opened, a catheter be- passedthrough it into the cranial cavity (Van Huevels method), andthe fluid thus be evacuated (Fig. 394). Usually, however, thereis no special difficulty or danger in the delivery of the after- ANOMALIES IN THE FORCES OF LABOR. :>*i coming head of a hydrocephalic infant. The force required forits extraction not infrequently ruptures the walls of the ventriclesand converts the case into one of external hydrocephalus, orpossibly drives the fluid out of the foramen magnum into thetissues of the neck and back, so reducing the bulk of the headas to permit its extraction. At any rate, the condition can. Fig. 394.—Tapping a hydrocephalus through the spinal canal (Varnier). scarcely escape the notice of the medical attendant, and a diag-nosis is made before the lower uterine segment is dangerouslystretched or ruptured. The difficulty in the delivery of a hydrocephalic fetus is not indirect proportion to the quantity of fluid in the ventricles andthe size of the head. In cases of extreme distention, the cranial 5i6 THE PATHOLOGY OF LABOR. vault is Likely to rupture, while in moderate grades of hydro-cephalus the quantity of brain-substance surrounding the ven-tricles and the strength of the brain-membranes forbid thismeans of spontaneous delivery. Mai presentations and faulty positions include shoulder, face,brow, deviated vertex, and compound presentations. All but
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Keywords: ., bookcentury1800, bookdecade1890, bookidtex, booksubjectobstetrics
