Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Experiment Videos

[Perimesencephalic hemorrhage].

P Canhão1, A N Pinto, T Pinho e Melo

  • 1Serviço de Neurologia, Neurocirurgia e Radiologia, Hospital Santa Maria, Lisboa.

Acta Medica Portuguesa
|October 1, 1992
PubMed
Summary
This summary is machine-generated.

Related Concept Videos

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

Corrigendum to "Physical Activity in Vascular Cognitive Impairment: Systematic Review with Meta-Analysis" [Journal of Stroke and Cerebrovascular Diseases, Vol 32, No.8 (August), 2023: 107133].

Journal of stroke and cerebrovascular diseases : the official journal of National Stroke Association·2025
Same author

Physical activity in vascular cognitive impairment: Systematic review with meta-analysis.

Journal of stroke and cerebrovascular diseases : the official journal of National Stroke Association·2023
Same author

Transmitted HIV-1 drug resistance in a large international cohort using next-generation sequencing: results from the Strategic Timing of Antiretroviral Treatment (START) study.

HIV medicine·2020
Same author

Improving outcomes and decreasing costs of neurological diseases: Mind the gap.

European journal of neurology·2020
Same author

Blood biomarkers associated with inflammation predict poor prognosis in cerebral venous thrombosis:: a multicenter prospective observational study.

European journal of neurology·2020
Same author

Reply to the letter 'We never speak about sudden unexpected death in Parkinson's disease'.

European journal of neurology·2020
Same journal

[Presence of Dermatologists on Social Media: Perception of the Portuguese Population].

Acta medica portuguesa·2026
Same journal

[Sexual Health in Oncology Patients and Cancer Survivors: A Structured Protocol to Address an Unmet Clinical Need at IPO-Porto].

Acta medica portuguesa·2026
Same journal

Hyperthermia in a Teenager: Is it Just a Heat Stroke?

Acta medica portuguesa·2026
Same journal

Cutaneous Polyarteritis Nodosa as the Inaugural Manifestation of Hairy Cell Leukemia.

Acta medica portuguesa·2026
Same journal

Alopecia Neoplastica from Breast Carcinoma: When Hair Loss Hides Something Else.

Acta medica portuguesa·2026
Same journal

[Burnout Among Residents: A Current Perspective].

Acta medica portuguesa·2026
See all related articles

Perimesencephalic hemorrhage, a type of subarachnoid hemorrhage, typically presents with sudden headache and benign outcomes. Patients with normal initial cerebral angiography may not require repeat imaging, simplifying diagnosis and management.

Area of Science:

  • Neurology
  • Neurosurgery
  • Radiology

Context:

  • Subarachnoid hemorrhage (SAH) diagnosis and management.
  • Evaluation of patients with normal cerebral angiography.
  • Characterization of perimesencephalic hemorrhage (PMH).

Purpose:

  • To identify patients with perimesencephalic hemorrhage (PMH) among those with subarachnoid hemorrhage (SAH).
  • To describe the clinical presentation and radiological findings of PMH.
  • To assess the outcomes and need for repeat angiography in PMH.

Summary:

  • Out of 293 SAH patients, 108 had normal cerebral angiography.
  • Twenty-three patients met radiological criteria for PMH.
  • PMH patients presented with severe headache, meningeal signs, and no focal deficits or decreased alertness.

Related Experiment Videos

  • The evolution was benign with no mortality, morbidity, or rebleeds over 3.5 years.

    • Impact:

    • Suggests that repeat angiography may not be necessary for subarachnoid hemorrhage patients with normal initial findings suggestive of PMH.
    • Highlights the benign nature and favorable prognosis of perimesencephalic hemorrhage.
    • Aids in streamlining diagnostic pathways for specific SAH subtypes.