Factors influencing the results of surgical therapy of non-acute subdural haematomas

  • Opšenák René
  • Hanko Martin
  • Snopko Pavol
  • Varga Kristián
  • Fejerčák Tomáš
  • Kolarovszki BranislavEmail author
Original Article



To identify predictive factors with an impact on the outcome of surgical treatment of non-acute subdural haematomas (NASH).


One hundred eleven patients who underwent an evacuation of 132 NASH by means of burr hole or craniotomy from January 2014 to December 2018 were retrospectively analyzed. We evaluated the impact of factors that could possibly predict the result of surgical treatment. The assessment was focused on the impact of factors, such as age, gender, pre-operative clinical symptoms, timing and extent of surgical procedure, intake of anticoagulants and antiplatelet drugs, morphological type, recurrence, side localization or bilateral occurrence of NASH. Patients’ functional outcome was quantified using the Glasgow Outcome Score (GOS) with a follow-up period of 3 months.


Morphological type of NASH did not have any significant impact on the final GOS. The risk factors associated with less favorable GOS included preoperative intake of anticoagulants and preoperative finding of phatic disorder, quantitative disorder of consciousness and disorientation. Preoperative intake of antiplatelet drugs or anticoagulants and craniotomy were risk factors for postoperative development of a surgically significant acute extracerebral haematoma. The complications occurred significantly more often after a craniotomy when compared to the burr hole evacuation (p = 0.0163), but the incidence of recurrence of NASH was significantly lower (p = 0.0439).


The risk factors for the surgical treatment of NASH included preoperative intake of antithrombotic drugs and evacuation of NASH through craniotomy. Craniotomy resulted in a significantly lower incidence of recurrence.


Subdural haematoma Outcome Risk factors Recurrence 



This work was supported by project named The application of PACS (Picture Archiving and Communication System) in research and development, ITMS 26,210,120,004. All authors agree to the publication of this article.

Compliance with ethical standards

Conflict of interest

Authors hereby certify that they have no conflicts of interest to declare in connection with this study.


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Copyright information

© Springer-Verlag GmbH Germany, part of Springer Nature 2019

Authors and Affiliations

  • Opšenák René
    • 1
  • Hanko Martin
    • 1
  • Snopko Pavol
    • 1
  • Varga Kristián
    • 1
  • Fejerčák Tomáš
    • 1
  • Kolarovszki Branislav
    • 1
    Email author
  1. 1.Clinic of Neurosurgery, Jessenius Faculty of Medicine in MartinComenius University in Bratislava, University Hospital MartinMartinSlovakia

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