Subarachnoid hemorrhage clinical manifestations

Written by Wang Li Bing

Intensive Care Medicine Department

Updated on September 09, 2024

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When a subarachnoid hemorrhage occurs, patients can experience varying degrees of headache, usually unbearable, accompanied by nausea and vomiting. Projectile vomiting indicates high intracranial pressure in the patient. Hours after the second subarachnoid hemorrhage, signs of meningeal irritation can appear, generally presenting positively, such as neck stiffness, headache, vomiting, etc. The third issue involves varying degrees of consciousness and mental disorders in patients, and some may even display symptoms of epilepsy. Therefore, with the appearance of the above clinical symptoms, patients should actively seek treatment from a neurologist for further management.

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Written by Wang Li Bing

Intensive Care Medicine Department

40sec

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Clinical manifestations of subarachnoid hemorrhage

The main clinical manifestations of subarachnoid hemorrhage are sudden severe headache, accompanied by nausea and vomiting, with positive signs of meningeal irritation. If such symptoms occur, it is urgent to seek medical attention and perform a cranial CT scan. If the CT shows a high-density shadow in the subarachnoid space, it can be diagnosed as subarachnoid hemorrhage, and the patient should be treated in neurology or neurosurgery for active management. Clinically, conservative medication treatment is generally adopted, paying attention to changes in the patient's consciousness and pupils, and surgical treatment may be considered if necessary.

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Written by Chen Yu Fei

Neurosurgery

1min 1sec

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The difference between cerebral hemorrhage and subarachnoid hemorrhage

There is a significant difference between cerebral hemorrhage and subarachnoid hemorrhage. For subarachnoid hemorrhage, the specific causes are mainly divided into two types. The first cause is due to trauma, violent strikes, car accidents, or falls from heights, leading to localized vascular rupture and extensive subarachnoid hemorrhage. It generally presents as obvious high-density shadows in the ventricular system or cisterns. The occurrence of subarachnoid hemorrhage often leads to symptoms such as headache, dizziness, neck stiffness, and positive meningeal irritation signs. The other situation is spontaneous subarachnoid hemorrhage, most often due to intracranial aneurysms or arteriovenous malformations. Cerebral hemorrhage is primarily due to hypertensive cerebral hemorrhage, which is more likely to occur, mostly seen in the bilateral basal ganglia, presenting as localized high-density shadows.

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Written by Zhang Hui

Neurology

1min 4sec

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Does subarachnoid hemorrhage require surgery?

Subarachnoid hemorrhage is a rather dangerous disease with very high mortality and disability rates. It mainly manifests as sudden severe headaches, nausea, and vomiting, and complications such as bleeding, cerebral vasospasm, and electrolyte disorders can occur. The most common cause of subarachnoid hemorrhage is due to the rupture of an aneurysm. Therefore, it is generally advocated that patients with subarachnoid hemorrhage undergo surgery as soon as possible. The surgical method mainly involves local anesthesia, and a complete cerebral angiography is performed to check for the presence of an aneurysm. If an aneurysm is present, an interventional embolization can be performed, which causes less trauma and generally has a better prognosis. If there is a large amount of bleeding and the patient's life is in danger, a craniotomy may also be necessary. Thus, patients with subarachnoid hemorrhage need to undergo surgical treatment.

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Written by Zhang Hui

Neurology

1min 13sec

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What is good to eat for subarachnoid hemorrhage?

Subarachnoid hemorrhage is most commonly caused by an aneurysm. Once an aneurysm ruptures, it can lead to blood leaking into the subarachnoid space, causing severe headaches, nausea, vomiting, and other clinical symptoms. The onset is very sudden and the headaches can be extremely intense. It is crucial to treat aggressively and clamp the aneurysm as soon as possible. The diet for patients with subarachnoid hemorrhage should include: First, it is essential to take anti-vasospasm medications, as subarachnoid hemorrhage can easily lead to arterial spasms. Calcium channel blockers should be used to prevent arterial spasms to avoid severe complications. Second, consume foods that aid in bowel movements, such as bananas, apples, and oranges. It is vital for patients with subarachnoid hemorrhage to maintain regular bowel movements, and these foods can help. Third, eat high-quality proteins to strengthen the body and prevent complications. This can include fish, lean meats, beef, and drinking milk.

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Written by Zhang Hui

Neurology

1min 11sec

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Differentiation between subarachnoid hemorrhage and cerebral hemorrhage

Subarachnoid hemorrhage and cerebral hemorrhage, though both involve bleeding, have different mechanisms of onset. The first distinction is that cerebral hemorrhage is generally caused by hypertension. Hypertension leads to hyaline degeneration and fibrinoid necrosis of arteries, resulting in bleeding. In contrast, the most common cause of subarachnoid hemorrhage is an aneurysm, which may be related to factors such as smoking and congenital developmental abnormalities. In terms of clinical presentation, cerebral hemorrhage has a sudden onset, with symptoms of headache, nausea, vomiting, but also includes impairments in language functions, and signs of neurological deficits such as limb paralysis. Subarachnoid hemorrhage, on the other hand, typically involves very severe pain, usually without manifestations such as limb paralysis. Furthermore, from a radiological perspective on CT imaging, cerebral hemorrhage is mainly located in the brain parenchyma, while subarachnoid hemorrhage mainly indicates that the site of bleeding is in the subarachnoid space.