Patients with a chronic subdural hematoma (cSDH), that is, a blood accumulation between two meninges developing over a long period of time, often have recurrent bleedings after an initial operation. The study aims to show that additional surgery reduces the risk of recurrent bleeding. The additional procedure aims to block small blood vessels in the skull with tiny plastic particles. The small blood vessels are embolized using X-rays and a contrast medium and a fine tube that is inserted into the diseased vessels of the head via the groin. Patients of full age who have undergone burr hole trepanation as a first operation, i.e. a blood drain through a hole in the cranial cavity, can participate in the study. Participating patients are randomly assigned to a control group with treatment according to clinical routine or a treatment group with an additional occlusion of the blood vessels in the skull. In addition, patients can consent to a genetic test to determine the relationship between a coagulation factor and the risk of recurrence of the hematoma. In order to record the test results, check-up examinations are carried out after one and three months.
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
PREVENTION
Masking
SINGLE
Enrollment
154
A micro catheter is inserted transfemorally into the branches of the middle meningeal artery (MMA) in a minimally invasive manner and the periphery is occluded using polyvinyl alcohol (PVA) particles to prevent future bleeding. If the desired catheter position cannot be achieved due to the anatomical conditions, a more proximal closure of the MMA using Onyx® or micro-electric coils is performed. Embolization of the MMA by PVA particles with sizes between 40-300 µm is preferred over embolization by coils and Onyx®, since the capillary network of the dura is entirely blocked when using particles. In order to identify the vessels to be closed, a digital subtraction angiography (DSA) is performed.
Evacuation of cSDH
Unfallkrankenhaus Berlin
Berlin, State of Berlin, Germany
RECRUITINGcSDH recurrence rates after surgery
A recurrence occurs when at least one of the following criteria is met: * recurrent cSDH with at least the same volume (\>- 10%) compared to the findings at baseline and / or * recurrent cSDH which requires surgery
Time frame: Within three months of follow-up
Impairment due to neurological deficits assessed by the modified Rankin Scale
Modified Rankin scale ranges from 0 (no symptoms) to 5 (severe disability)
Time frame: Evaluated at three months after baseline
Number of recurrence-associated complications
Examined on a binary scale
Time frame: Within three months of follow-up
Number of complications associated with interventional therapy
Examined on a binary scale
Time frame: Within three months of follow-up
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