. The diseases of children : medical and surgical. lives for a few days it may be followed by softening. The hsemorrhage 20 The Diseases incident to Birth may take place during birth, from compression of the umbilical cord, producingasphyxia, and is consequently especially common in breech presentations ;or it may result from pressure on the head by the uterus or the blades of theforceps (Spencer). We must bear in mind that the pia mater is not onlyvery delicate and its capillaries easily ruptured if they are over-distended,but also that a stasis is very apt to occur in the superficial veins o
. The diseases of children : medical and surgical. lives for a few days it may be followed by softening. The hsemorrhage 20 The Diseases incident to Birth may take place during birth, from compression of the umbilical cord, producingasphyxia, and is consequently especially common in breech presentations ;or it may result from pressure on the head by the uterus or the blades of theforceps (Spencer). We must bear in mind that the pia mater is not onlyvery delicate and its capillaries easily ruptured if they are over-distended,but also that a stasis is very apt to occur in the superficial veins on accountof their peculiar connections. Gowers has laid stress on the fact that hereascending arteries pass into ascending veins, and, moreover, these surfaceveins empty themselves into the superior longitudinal sinus in a forwarddirection and consequently against the blood current. Thus the Sylvianvein commences in the fissure of that name and courses upwards to emptyitself into the superior longitudinal sinus, receiving the small veins from the. Mf^sfJf Fig 5.—Meningeal Haemorrhage in an Infant ; death on the twent^-second day.{After McNutt.) motor area efi route. Near its commencement the Sylvian vein has^ con-nections with the superior petrosal sinus (Trolard) and also with the basilarvein. Spencer comes to the conclusion, as the result of an examination of thebodies of 130 infants born dead or dying soon after birth, that pressure onthe skull by the forceps or the uterine walls plays an important part in pro-ducing meningeal haemorrhage. He believes that when the bones of theskull are abnormally soft and the sutures lax, the lower edge of the parietalbone may press on the Sylvian vein or its connections, when the head issubjected to severe pressure during labour, and thus a haemorrhage in theRolandic area may be produced (fig. 5). He also thinks that clamping of the 1 Obstetrical Transactiotis, vol. . Apoplexia Neonatorum 21 internal jugular by the forceps or pre
Size: 1870px × 1336px
Photo credit: © The Reading Room / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookauthorwrightgageorgearthurb, bookcentury1900, bookdecade1900
