I60.10

Clinical Causes: Ruptured aneurysm: The most common cause, where a weakened blood vessel wall balloons out and bursts. Arteriovenous malformations: Abnormal tangles of blood vessels that can rupture. Vessel wall abnormalities: Conditions such as vasculitis or inherited disorders that weaken arterial walls. High blood pressure: Elevated blood pressure can increase the risk of rupture in vulnerable vessels. Blood clotting disorders: Conditions that affect blood clotting can predispose individuals to bleeding. Use of blood-thinning medications: Medications like anticoagulants or antiplatelet agents that increase bleeding risk. Smoking and substance abuse: Tobacco use and substances like cocaine can cause vascular damage or constriction.

Key Symptoms: Sudden headache: Often described as the worst headache of one's life. Neck stiffness: Due to irritation of the meninges from blood leakage. Nausea and vomiting: Common accompanying symptoms. Photophobia: Sensitivity to light. Altered consciousness: Ranging from confusion to loss of consciousness. Seizures: Occasionally occur during or after bleeding. Focal neurological deficits: Weakness, numbness, speech difficulties depending on affected areas.

Diagnosis Path: Clinical evaluation: Based on history and physical examination, especially sudden severe headache and neurological signs. Imaging tests: Computed tomography (CT) scan of the brain is typically the first test performed. It can detect bleeding rapidly. Lumbar puncture: If CT is inconclusive, analyzing cerebrospinal fluid can reveal blood or its breakdown products. Cerebral angiography: To pinpoint the source of bleeding, such as an aneurysm or abnormal vessel. Magnetic resonance imaging (MRI): Provides detailed images of brain structures and blood flow. Additional tests: Blood tests to evaluate clotting and overall health.

Treatment Protocols: Emergency care: Includes maintaining airway, breathing, and circulation, along with blood pressure management. Surgical intervention: Clipping or endovascular coiling of the aneurysm to prevent rebleeding. Medications: To control blood pressure, prevent vasospasm, and decrease the risk of seizures. Monitoring: Close neurological assessments and imaging to track bleeding and detect complications. Preventing complications: Such as hydrocephalus, vasospasm, and rebleeding, through various medical procedures and medications. Rehabilitation: Post-stabilization therapy to regain function, which may include physical, occupational, and speech therapy.