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Hemorrhagic Stroke l: Introduction

Hemorrhagic Stroke l: Introduction

A hemorrhagic stroke is an acute neurological event that occurs when a weakened cerebral blood vessel ruptures, allowing blood to accumulate within or around the brain. The sudden release of blood forms a focal hematoma that increases intracranial pressure, displaces neural tissue, and can obstruct cerebrospinal fluid pathways. These effects may be compounded by intraventricular extension of the hemorrhage, cerebral edema, or compression of adjacent structures, all of which contribute to...

Hemorrhagic Stroke ll: Pathophysiology

Hemorrhagic Stroke ll: Pathophysiology

A hemorrhagic stroke develops when a cerebral blood vessel ruptures, allowing blood to escape into the surrounding brain tissue, as in intracerebral hemorrhage (ICH), or into the subarachnoid space, as in subarachnoid hemorrhage (SAH). Because the skull is a rigid compartment, the sudden presence of extravascular blood rapidly increases intracranial pressure and compresses adjacent neural structures, leading to immediate tissue injury and impaired cerebral perfusion.Mass Effect and Primary...

Vascular Spasm

Vascular Spasm

The vascular phase, also known as vasospasm, is the initial stage of hemostasis, crucial for preventing excessive bleeding when a blood vessel is injured. After a vessel is cut, nerves in the damaged area trigger pain and other sensory impulses. Simultaneously, the smooth muscles in the vessel wall contract, resulting in a vascular spasm. This contraction reduces the vessel's diameter at the injury site, slowing or stopping blood loss through the vessel wall. Vascular spasms typically last for...

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Related Experiment Video

Updated: May 15, 2026

3D-Neuronavigation In Vivo Through a Patient's Brain During a Spontaneous Migraine Headache

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Published on: June 2, 2014

Headache in hemifacial spasm patients.

T Peeraully¹, S-F Tan, S M C Fook-Chong

¹Department of Neurology, Singapore General Hospital, Singapore.

Acta Neurologica Scandinavica

|January 15, 2013

Summary

Headaches are common in hemifacial spasm patients and worsen with spasm severity. Botulinum toxin treatment effectively improves these headaches, especially in severe cases.

Area of Science:

Neurology
Headache Medicine

Background:

Hemifacial spasm (HFS) is a neurological disorder characterized by involuntary facial muscle contractions.
Headaches are a frequently reported but understudied symptom in patients with HFS.

Purpose of the Study:

To determine the prevalence and characteristics of headaches in patients with HFS.
To investigate the relationship between HFS severity and headache occurrence.
To evaluate the efficacy of botulinum toxin (BTX) in alleviating HFS-related headaches.

Main Methods:

A cohort of 70 patients with HFS were assessed for headache presence and characteristics.
Quality of life was measured using the HIT-6 and HFS-7 questionnaires.
The impact of BTX treatment on HFS-related headaches was recorded.

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Main Results:

Headaches were significantly associated with increased HFS severity and reduced quality of life (HIT-6).
HFS severity was a strong predictor of HFS-related headaches (OR 19.1).
BTX treatment led to significant improvement in HFS-related headaches (P < 0.001).

Conclusions:

HFS can be complicated by headaches, particularly in patients with more severe spasms.
Botulinum toxin therapy offers a promising treatment option for HFS-related headaches, warranting tailored treatment regimens.