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Updated: Feb 10, 2026

Author Spotlight: Integrated Photoacoustic, Ultrasound, and Angiographic Tomography (PAUSAT) for NonInvasive Whole-Brain Imaging of Ischemic Stroke
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Brain Stem Ischemic Stroke Associated with Anaphylaxis.

Luis A Robles1, Antonio F Matilla2

  • 1Section of Neurosurgery, Hospital Cmq.

Cureus
|May 11, 2018
PubMed
Summary
This summary is machine-generated.

Anaphylaxis can cause hypotension, a condition that may lead to lateral medullary syndrome in patients with preexistent vertebral artery hypoplasia (VAH). This case report highlights a previously unreported association between anaphylaxis, VAH, and stroke.

Keywords:
anaphylaxisischemic strokelateral medullary syndromewallenberg syndrome

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Area of Science:

  • Neurology
  • Cardiology
  • Immunology

Background:

  • Vertebral artery hypoplasia (VAH) affects up to 20% of the population and is linked to increased ischemic stroke risk.
  • Anaphylaxis is a severe allergic reaction with diverse clinical presentations, including hypotension.
  • Lateral medullary syndrome (LMS) is a type of stroke often caused by vertebral artery issues.

Observation:

  • This paper details a patient with known VAH who experienced a hypotensive episode due to anaphylaxis.
  • The patient subsequently presented with symptoms consistent with lateral medullary syndrome.

Findings:

  • The case demonstrates a potential link between anaphylaxis-induced hypotension and the manifestation of LMS in an individual with underlying VAH.
  • This specific association between anaphylaxis, VAH, and LMS has not been previously documented in medical literature.

Implications:

  • This case highlights the importance of considering underlying vascular anomalies like VAH in patients experiencing stroke-like symptoms during hypotensive events.
  • Recognizing this association may improve diagnostic approaches and patient management for anaphylaxis complications.
  • Further research is warranted to explore the mechanisms and prevalence of this association.