• Eman M Nada, Shobana Rajan, Radhika Grandhe, Milind Deogaonkar, Nicole M Zimmerman, Zeyd Ebrahim, and Rafi Avitsian.
• Department of Anesthesiology and Perioperative Medicine, University of Massachusetts, Worcester, Massachusetts, USA.
• World Neurosurg. 2016 Nov 1; 95: 40-45.

BackgroundWe evaluated blood pressure management associated with implantable pulse generator (IPG) procedure on same day (SD) versus different day (DD) from deep brain stimulation (DBS) placement.MethodsA retrospective chart review of 99 records for vasopressors given during IPG using a negative binomial regression model was performed. An association between SD versus DD, cumulative vasopressor dose, and minimum and maximum mean arterial pressure (MAP) were sought.ResultsNo significant association between SD versus DD DBS and the number of times vasopressors were given during stage II, estimated ratio of means (CI) of 1.8 (0.9-3.5); P = 0.07. Day of stage II had no association with the cumulative dose of vasopressor given during stage II, with an estimated difference in means (CI) of 2.4 (-0.4 to 5.3). The SD group had a significantly lower mean of minimum stage II MAP compared with DD, with an estimated difference in means (CI) of -10.5 (-17.4 to -3.5; P < 0.001). There was no association with maximum stage II MAP, with an estimated difference in means (CI) of -2.8 (-17.6 to 12.0; P = 0.63).ConclusionNo difference in intraoperative vasopressor use was found between SD versus DD IPG placement, but the SD group had a significantly lower minimum MAP.Copyright © 2016 Elsevier Inc. All rights reserved.

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