Journal of Korean Neurosurgical Society

The Korean Neurosurgical Society (대한신경외과학회)
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Endoscopic Treatment of Chronic Subdural Hematoma Combined with Inner Subdural Hygroma

  • Yoon Hwan Park (Department of Neurosurgery, Daegu Catholic University College of Medicine) ;
  • Kwang-Ryeol Kim (Department of Neurosurgery, Daegu Catholic University College of Medicine) ;
  • Ki Hong Kim (Department of Neurosurgery, Daegu Catholic University College of Medicine)
  • Received : 2023.03.27
  • Accepted : 2023.06.15
  • Published : 2023.09.01
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Abstract

Objective : A chronic subdural hematoma (CSDH) is a collection of bloody fluid located in the subdural space and encapsulated by neo-membranes. An inner subdural hygroma (ISH) is observed between the inner membrane of a CSDH and the brain surface. We present six cases of CSDH combined with ISH treated via endoscopy. Methods : Between 2011 and 2022, among the 107 patients diagnosed with CSDH in our institute, six patients were identified as presenting with CSDH combined with ISH and were included in this study. Preoperative computerized tomography (CT) and magnetic resonance imaging (MRI) were performed simultaneously, and endoscopic surgery for aspiration of the hematoma was performed in all cases of CSDH combined with ISH. Results : The mean age of patients was 71 years (range, 66 to 79). The patients were all male. In two cases, the ISH was not identified on CT, but was clearly seen on MRI in all patients. The inner membrane of the CSDH was tense and bulging after draining of the CSDH in endoscopic view due to the high pressure of the ISH. After fenestration of the inner membrane of the CSDH and aspiration of the ISH, the membrane was sunken down due to the decreasing pressure of the ISH. There was one recurrence in post-operative 2-month follow up. The symptoms improved in all patients after surgery, and there were no surgery-related complications. Conclusion : CSDH combined with ISH can be diagnosed on imaging, and endoscopic surgery facilitates safe and effective treatment.

Keywords

References

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