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Acute Pharyngitis01:30

Acute Pharyngitis

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During most eukaryotic translation processes, the small 40S ribosome subunit scans an mRNA from its 5' end until it encounters the first start AUG codon. The large 60S ribosomal subunit then joins the smaller one to initiate protein synthesis. The location of the translation initiation is largely determined by the nucleotides near the start codon as there may be multiple translation initiation sites present on the mRNA.  Marilyn Kozak discovered that the sequence RCCAUGG (where R...
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Related Experiment Video

Updated: Dec 20, 2025

Evaluation of T Follicular Helper Cells and Germinal Center Response During Influenza A Virus Infection in Mice
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Syncope after Influenza Virus Infection.

Sang Mi Noh1, Hyun Goo Kang2, Bum Joon Kim3

  • 1Department of Neurology, St. Vincent's Hospital, College of Medicine, The Catholic University of Korea, Suwon, Korea.

Journal of Korean Medical Science
|May 26, 2020
PubMed
Summary

Syncope, or fainting, can occur in 2.2% of influenza patients, often preceded by dizziness. High fever or a drop in blood pressure during standing may prolong loss of consciousness after flu.

Keywords:
InfluenzaOrthostatic Blood Pressure DropSyncope

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Area of Science:

  • Neurology
  • Infectious Diseases
  • Cardiology

Background:

  • Influenza, a viral respiratory illness, can lead to various complications.
  • While respiratory issues like pneumonia are common, rare neurological complications such as syncope are also noted.
  • Understanding syncope post-influenza is crucial for comprehensive patient care.

Purpose of the Study:

  • To investigate the prevalence and characteristics of syncope following influenza infection.
  • To explore potential pathomechanisms contributing to post-influenza syncope.
  • To identify factors associated with syncope in influenza patients.

Main Methods:

  • Retrospective analysis of patients diagnosed with influenza.
  • Data collection on syncope occurrence, preceding symptoms, and patient characteristics.
  • Correlation analysis between syncope duration and clinical indicators like fever and orthostatic blood pressure changes.

Main Results:

  • 2.2% of influenza patients experienced syncope.
  • Frequent dizziness preceded syncope in affected patients.
  • Prolonged loss of consciousness was associated with high fever and positive orthostatic blood pressure drop.

Conclusions:

  • Syncope is a rare but observed complication of influenza.
  • Dizziness is a common prodromal symptom.
  • Fever and orthostatic hypotension may influence the severity of syncope in influenza patients.