• Janalee Stokken, Pablo F Recinos, Troy Woodard, and Raj Sindwani.
• aSection of Rhinology, Sinus and Skull Base Surgery, Head & Neck Institute bNeurosurgical Institute, Cleveland Clinic Foundation, Cleveland, Ohio, USA.
• Curr Opin Otolaryngol Head Neck Surg. 2015 Feb 1; 23 (1): 78-82.

Purpose Of ReviewLumbar drains were once routinely used for cerebrospinal fluid (CSF) diversion in endoscopic skull base reconstruction. The vascularized pedicled nasoseptal flap has now become the reconstructive workhorse in the setting of high-flow leaks. High-flow CSF leaks occur when there is violation of a cistern or ventricle. As lumbar drains have the potential for significant complications and the rate of postoperative CSF leak has decreased with the use of vascularized flaps, lumbar drain use has been challenged.Recent FindingsLumbar drains have a reported 3% major and 5% minor complication rates. Two recent studies reviewed their postoperative CSF leak rates after reconstruction of high-flow leaks. Garcia-Navarro described 46 cases in which a lumbar drain was placed in 67% of patients with two postoperative CSF leaks, one in each group. Eloy et al. described 59 patients without lumbar drain and reported no postoperative CSF leaks.SummaryLumbar drains are not necessary in the settings of low-flow CSF leaks or even in all high-flow leaks. We consider the use of a lumbar drain in settings wherein a high-flow leak is encountered or anticipated and the patient has other risk factors that may make the risk of postoperative CSF leak higher or closure of the leak more difficult.

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