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European Spine Journal

, Volume 26, Issue 10, pp 2606–2615 | Cite as

The impact of hypertension on the occurrence of postoperative spinal epidural hematoma following single level microscopic posterior lumbar decompression surgery in a single institute

  • Yasushi Fujiwara
  • Hideki Manabe
  • Bunichiro Izumi
  • Takahiro Harada
  • Kazuyoshi Nakanishi
  • Nobuhiro Tanaka
  • Nobuo Adachi
Original Article
  • 322 Downloads

Abstract

Purpose

Postoperative spinal epidural hematoma (PSEH) is one of the most hazardous complications after spine surgery. A recent study has reported that a ≥50 mmHg increase in systolic blood pressure after extubation was a significant risk factor for symptomatic PSEH. In this paper, the impact of hypertension on PSEH occurrence was investigated.

Methods

Among a total of 2468 patients who underwent single level microscopic posterior decompression surgery for lumbar spinal stenosis in a single institute, 15 (0.6%) received evacuation surgery for PSEH. Those 15 patients were investigated statistically compared with a randomly selected control group (n = 46) using the Mann–Whitney U test and multiple logistic regression analysis.

Results

The univariate analysis showed that there were no significant differences in age, gender, BMI, pre-operative anti-coagulant usage, intraoperative blood loss, operation time, and the rate of patients who received pre-operative hypertension treatment. However, there were significant differences in the rate of patients who showed high blood pressure at admission (66.7 vs 6.5%) and >50 mmHg increases in blood pressure after extubation (53.3 vs 17.4%) in the univariate analysis. Moreover, postoperatively, there was a statistical difference in the amount of post-operative drainage. Multiple logistic regression analysis showed that high blood pressures at admission and poor postoperative drainage were the essential risk factors.

Conclusions

Our results demonstrate that the pre-operative high blood pressure value was the most essential risk factor for PSEH, although there was no difference in the preoperative hypertension treatment. Consequently, management of pre-operative blood pressure and post-operative drainage will be crucial for preventing PSEH.

Keywords

Spine surgery Spinal epidural hematoma Surgical complications 

Notes

Acknowledgements

We appreciate Mr. Vincent Hykel for his devoted support.

Compliance with ethical standards

Conflict of interest

The authors declare that they have no competing interest.

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Copyright information

© Springer-Verlag GmbH Germany 2017

Authors and Affiliations

  1. 1.Department of Orthopaedic SurgeryHiroshima City Asa Citizens HospitalHiroshimaJapan
  2. 2.Department of Orthopaedic SurgeryGraduate School of Biomedical Sciences, Hiroshima UniversityHiroshimaJapan

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