Lateral ventricular puncture is a procedure of recognized value. The method is particularly simple with infants because the unossified coronal suture allows a needle to be inserted directly through it into the ventricle. In older children and adults, however, this route of entry is closed. For such cases, Dandy1 has devised an operative procedure by which the ventricle may be punctured through a trephine hole made 1 inch (2.5 cm.) above the inion and 1 inch from the midline. This location has been selected by him because the posterior horn of the ventricle is easily accessible from it, and because bleeding is minimal at this point. In childhood, however, ossification of the coronal suture is only partial, so that if some simple means of penetration were available #44 GAUGE DRILL 3/32D A drill for lateral ventricular puncture. it would remain the path of choice for lateral ventricular puncture. I
SCHWENTKER FF. A DRILL FOR LATERAL VENTRICULAR PUNCTURE. Am J Dis Child. 1934;47(2):349–350. doi:10.1001/archpedi.1934.01960090090007
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