Abstract
The authors report a simple and rapid procedure for tunneling a lumbar drain subcutaneously to facilitate chronic cerebrospinal fluid (CSF) drainage. A standard lumbar puncture (LP) is performed with a large-bore Tuohy needle (14- to 16-gauge), the drainage catheter is advanced into the subarachnoid space, and the needle is removed. The free Tuohy needle is then passed from a lateral position and brought out through the initial LP site. The free catheter is fed through the needle, and the needle is removed. The drain is attached to an external drainage bag in the usual manner. The authors have found this method particularly useful in some skull base and spinal surgical applications in which longer term continuous CSF drainage is desired.
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