Chronic Subdural Hematoma (CSDH) is a life-threatening condition in which blood accumulates between the brain and the brain’s tough outer lining (dura mater) over a long period of time. In contrast, acute subdural hematomas develop right after the patient has a head trauma. CSDH develop over time, sometimes requiring weeks or even months to show any symptoms. Such a slow progression of the disease can make it insidious, since patients fail to relate their growing symptoms to an earlier minor head injury.
The Silent Accumulator: How CSDH Develops
The brain is encased within the skull and surrounded by membrane layers and fluid. But in older adults, when a minor head injury occurs, it results in the tearing of the small veins and the dura mater. This condition leads to slow bleeding. It has no immediate effects, but the blood builds up over time, creating a hematoma that pushes the brain tissue. This pressure may cause neurological problems as the normal functioning of the brain is compromised.
Who’s at Risk? Unveiling the Common Culprits
Some of the causes of chronic subdural hematoma are as follows:
- Age: The older we get, the more our brain tends to shrink, stretching the size of the veins and increasing the risk of tearing once they are subjected to slight head injuries. This predisposes CSDH in those who are more than 65 years old.
- Anticoagulant Medications: Warfarin or aspirin are the medications that thin the blood, which can result in internal brain bleeding. This way, they increase the chances of getting a hematoma.
- Alcohol Consumption: The prolonged use of alcohol can lead to brain atrophy (shrinkage), together with liver impairment. These can potentially make a person more susceptible to bleeding, along with the development of a hematoma.
- Past Head Injuries: Patients who have a history of previous cases of recurring head injuries, regardless of how mild they were, are at a high risk of developing CSDH.
What Are the Symptoms of Chronic Subdural Hematoma?
Chronic subdural hematoma symptoms are more subtle. They can be mixed up with other serious health problems, such as stroke or dementia, especially among adults. Some common signs include:
- Persistent Headaches: The patients can have subtle but constant headaches. The condition can take over a month before the diagnosis is realised.
- Cognitive Changes: In many cases, patients with CSHD complain that they cannot memorise and concentrate on things. They are also in a state of confusion mind which is most of the times confused with poor cognitive ability with age.
- Weakness or Numbness: Symptoms that appear on one side of the body may be mistaken for the symptoms of a stroke.
- Balance and Coordination Problems: Patients with CSHD can experience frequent falls, which can cause injury to the head.
- Speech Difficulties: It is also possible that speech issues and word-finding difficulty will be confused with other health problems. These can complicate the diagnosis of chronic subdural hematoma.
In a few cases, patients may experience seizures or a decreased level of consciousness, necessitating urgent chronic subdural hematoma treatment.
Chronic Subdural Hematoma Diagnosis
Diagnosing CSDH involves recognition of the signs of the disease, which is possible only with clinical examination together with imaging studies:
Medical History and Physical Examination: First, healthcare providers will examine symptoms and ask about any recent head injury, however minor it may appear.
Imaging Studies: A computed tomography (CT) scan is the most suitable and widely used for detecting CSDH. It helps knowing the size and location of the hematoma. In some cases, a magnetic resonance imaging (MRI) scan may be used to have a comprehensive view.
Pathways to Recovery: How Is a Chronic Subdural Hematoma Treated?
The treatment philosophy of chronic subdural hematoma is based on the severity of the symptoms, together with the size of the hematoma.
- Observation: In patients who have small, asymptomatic hematomas, there are no significant symptoms, so close follow-up with necessary follow-up imaging is enough for the subdural hematoma management.
- Surgical Intervention: Patients with a larger hematoma may need surgical drainage for chronic subdural hematoma. This is effective in getting relief from the pressure on the brain. Common chronic subdural hematoma surgical treatment procedures include:
- Burr Hole Drainage: A minimally invasive subdural hematoma surgery in which a surgeon makes one or more small holes in the skull using local anaesthesia. This way, they ensure the accumulated blood is drained out. In this process, the duration of post-surgery recovery of chronic subdural hematoma remains relatively short.
- Craniotomy: In complex cases where the hematoma is thick or has several layers, a more invasive subdural hematoma surgery is needed. This procedure involves the removal of a larger section of the skull temporarily so that cleaning and drainage of the accumulated blood can be facilitated. Under this procedure, the subdural hematoma recovery time is longer.
Guarding the Gates: Preventing CSDH
While not all cases of CSDH can be prevented, especially those resulting from unforeseen accidents, certain measures can reduce the risk:
- Fall Prevention: Ensure that you take safety precautions in your house to avoid the chances of trips or falls among the elderly. That is why it is crucial to eliminate any tripping hazards anywhere. Besides, have grab bars installed in their bathrooms. Most importantly, sufficient lighting must be provided in order to diminish the risk.
- Protective Gear: Head injury may be prevented in young adults through the use of proper helmets while cycling or sports.
- Medication Management: There is a need to regularly monitor the dosage for anti-coagulant or antiplatelet drugs in individuals. These assist in offsetting the gains and the risks.
- Moderate Alcohol Consumption: Alcohol consumption must be minimised to decrease the chances of accidental falls or trips. Otherwise, it may cause the threat of additional head trauma or brain atrophy.
Remember, Chronic Subdural Hematoma is preventable.
