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Updated: Feb 8, 2026
09:59
A Magnetic Resonance Imaging Protocol for Stroke Onset Time Estimation in Permanent Cerebral Ischemia
Published on: September 16, 2017
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[Meteorological Factors that Affect Stroke Onset].
Naoki Kato1, Toshinori Hasegawa, Hiroshi Iizuka
1Department of Neurosurgery, Komaki City Hospital.
No Shinkei Geka. Neurological Surgery
|June 23, 2018
Summary
Meteorological factors like temperature and season influence stroke onset. Lower minimum daily temperatures correlate with hypertensive intracranial hemorrhage, while temperature changes affect subarachnoid hemorrhage incidence.
Area of Science:
- Neurology
- Environmental Health
- Epidemiology
Background:
- Numerous studies link meteorological conditions to stroke onset.
- Detailed analysis of specific meteorological factors influencing stroke remains limited.
- This study investigates stroke onset in relation to detailed meteorological data from Komaki.
Purpose of the Study:
- To examine the relationship between detailed meteorological factors and stroke onset.
- To identify specific weather conditions that may trigger different types of stroke.
Main Methods:
- Analysis of 1351 stroke patients (hypertensive intracranial hemorrhage, subarachnoid hemorrhage, cerebral infarction) admitted to Komaki City Hospital from April 2012 to March 2015.
- Evaluation of meteorological conditions including season, weather, temperature, atmospheric pressure, and humidity.
- Correlation of stroke incidence with daily and seasonal meteorological variations.
Main Results:
- Hypertensive intracranial hemorrhage incidence was lower in summer, with minimum daily temperature significantly associated with onset.
- Subarachnoid hemorrhage incidence showed a significant relationship with the previous day's temperature difference; higher incidence occurred when mean temperature decreased.
- No significant meteorological factors were identified as affecting cerebral infarction incidence in this study.
Conclusions:
- Stroke onset is influenced by seasonal variations and temperature.
- Specific temperature patterns, such as daily temperature fluctuations and minimum temperatures, are linked to certain stroke types.
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