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Updated: Sep 29, 2025
10:35
Microvascular Decompression: Salient Surgical Principles and Technical Nuances
Published on: July 5, 2011
46.6K
Case Series in the Utility of Invasive Blood Pressure Monitoring in Microvascular Decompression.
Risheng Xu1, Sumil K Nair1, Josh Materi1
1Department of Neurosurgery, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA.
Operative Neurosurgery (Hagerstown, Md.)
|March 22, 2022
Summary
Arterial lines in microvascular decompression (MVD) surgery are not associated with improved patient outcomes but increase costs and procedure time. Noninvasive blood pressure (NIBP) monitoring is a safe and cost-effective alternative for most MVD patients.
Area of Science:
- Neurosurgery
- Anesthesiology
- Health Economics
Background:
- The role of arterial lines in microvascular decompression (MVD) surgery remains unclear.
- Assessing the safety and economic impact of arterial lines versus noninvasive blood pressure (NIBP) monitoring in MVD is crucial.
Purpose of the Study:
- To compare the safety and costs of arterial lines with NIBP monitoring during MVD procedures.
- To evaluate the impact of arterial line use on intraoperative resource utilization and patient outcomes.
Main Methods:
- Retrospective review of 858 MVD patients from 2012-2020, categorized into early (2012-2014) and late (2015-2020) periods.
- Analysis of patient demographics, intraoperative data, and postoperative complications.
- Statistical comparison using chi-squared tests and t-tests to evaluate differences between arterial line and NIBP monitoring groups.
Main Results:
- Arterial line placement decreased from 64.2% to 30.1% over the study period (P < .001).
- Arterial lines added 11 minutes to preincision time (P < .001) and increased intraoperative vasoactive medication costs.
- No significant difference in postoperative complications was observed between arterial line and NIBP monitoring groups.
- Arterial line use incurred an average additional cost of $802 per case.
Conclusions:
- Noninvasive blood pressure monitoring is a safe and effective alternative to invasive arterial lines in MVD.
- NIBP monitoring offers a cost-effective approach for MVD patients, particularly those without significant cardiopulmonary risk factors.
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