. A treatise on the nervous diseases of children, for physicians and students. for a period of several only hope lies in successful surgical interference and in early preventivemeasures. A few recoveries are on record. The lateral and transversesinuses have been opened successfully and the clots removed.* Ballance,Sulzer, Schwartze, Parkin, Horsley, Macewen, Bacon, Pritchard, and Cheadlehave reported successful cases. Parkins and Cheadles patients were respect-ively nine and thirteen years of age. Henschen has collected 145 cases of * The details of the operation should be studied i
. A treatise on the nervous diseases of children, for physicians and students. for a period of several only hope lies in successful surgical interference and in early preventivemeasures. A few recoveries are on record. The lateral and transversesinuses have been opened successfully and the clots removed.* Ballance,Sulzer, Schwartze, Parkin, Horsley, Macewen, Bacon, Pritchard, and Cheadlehave reported successful cases. Parkins and Cheadles patients were respect-ively nine and thirteen years of age. Henschen has collected 145 cases of * The details of the operation should be studied in Macewens treatise, page 307et seq. 500 THE NERVOUS DISEASES OF CHILDREN. operation for sinus phlebitis following otitis ; of these, 85 were cured. Tyingthe jugular vein before removing the clot seems to exert a favorable influenceupon the percentage of cures. Koerner states that there was recovery inseventy-five per cent, of the cases if the jugular vein was tied, and only fiftyper cent, recovered if the vein was not tied. Jansen does not favor thisprocedure in all .Torcular iFig. 124a.—The Veins of the Dura Mater. (Heitzman.) The extensive experience of aurists and a far larger collection of caseshave helped to decide many mooted points, and the successful operationsrecorded encourage one to hope that sinus thrombosis (excepting possibly aspart of a general pyaemia) will become an eminently curable disease. Explora-tory operations in doubtful cases are not only justifiable but imperativelydemanded. CHAPTER XXVIII. DISEASES AND CONDITIONS DUE TO DEFECTIVE DEVEL-OPMENT OF THE BRAIN. LARGE DEFECTS. Just as there are abnormalities of the spinal cord, due to defective closureof the vertebral arches, so there are deformities of the brain and its coveringsdue to defective closure of the skull. The various forms of protrusion arebest illustrated by Figs. 125-127, taken from Hobs Textbook. These de-
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