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Cerebral Venous Thrombosis, Seasonal Trends, and Climatic Influence: A Region-SpecificStudy
Sanjith Aaron1, Jeyaseelan Lakshmanan2, Thambu D Sudarsanam3
1Department of Neurology, Christian Medical College Hospital, Vellore, Tamil Nadu, India.
Annals of Indian Academy of Neurology
|November 23, 2020
Summary
Higher ambient temperatures are linked to increased cerebral venous thrombosis (CVT) incidence, particularly in younger adults during summer. This large-scale study highlights a seasonal trend in CVT cases.
Area of Science:
- Neurology
- Environmental Medicine
- Epidemiology
Background:
- Limited research exists on seasonal variations in cerebral venous thrombosis (CVT).
- Previous studies on CVT seasonality have yielded conflicting results.
- Understanding climatic influences on CVT incidence is crucial for public health.
Purpose of the Study:
- To investigate the influence of climate and seasonal trends on CVT incidence.
- To analyze a region-specific dataset for seasonal variations in CVT.
Main Methods:
- Retrospective analysis of 970 adult CVT cases over 18 years.
- Utilized 30 years of meteorological data for climatic analysis.
- Employed QGIS software for patient plotting and SPSS for statistical analysis.
Main Results:
- CVT incidence was significantly higher in summer (42.3%) compared to autumn and winter (P=0.038).
- Younger individuals (<40 years) showed increased vulnerability to CVT during summer (P=0.009).
- A weak positive correlation was observed between rainfall and CVT incidence (r=0.18, P<0.01).
Conclusions:
- Higher ambient temperatures are consistently associated with increased CVT incidence.
- The study identifies a significant seasonal pattern in CVT, particularly in younger demographics.
- Findings may be relevant for regions with similar climatic conditions.
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