Cerebral Venous Thrombosis, Seasonal Trends, and Climatic Influence: A Region-SpecificStudy
| Autor: | Pavitra Mannam, Ajith Sivadasan, Sanjith Aaron, Mathew Alexander, Kenneth Benjamin, Jayaprakash Muliyil, Jeyaseelan Lakshmanan, Prabhu Kirubakaran, Vivek Mathew, A T Prabhakar, Thambu David Sudarsanam, Jothilakshmi Durairaj, Shyam Kumar N. Keshava |
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| Rok vydání: | 2019 |
| Předmět: |
medicine.medical_specialty
Younger age lcsh:RC346-429 03 medical and health sciences 0302 clinical medicine Ambient temperatures Epidemiology medicine 030212 general & internal medicine climate lcsh:Neurology. Diseases of the nervous system business.industry Incidence (epidemiology) Mean age cerebral venous thrombosis Seasonality medicine.disease Venous thrombosis incidence Original Article epidemiology Neurology (clinical) business season 030217 neurology & neurosurgery Demography |
| Zdroj: | Annals of Indian Academy of Neurology Annals of Indian Academy of Neurology, Vol 23, Iss 4, Pp 522-527 (2020) |
| ISSN: | 0972-2327 |
| Popis: | Background and Purpose: Studies looking at seasonal variation on cerebral venous thrombosis (CVT) are few with conflicting conclusions. In this region-specific study, we looked for climatic influence and seasonal trends on the incidence of CVT. Methods: Imaging proven adult CVT cases treated over a period of 18 years from a specific geographical location with similar seasons and climatic conditions were studied. Metrological parameters prepared using 30 years of data was used. Quantum geographical information system (QGIS software) and SPSS v 22 were used for patient plotting and analysis. Results: Total of 970 cases were studied. The incidence was significantly higher in summer 411 (42.3%) compared with autumn 317 (32.7%) and winter 242 (25.05); P = 0.038. This trend was consistent across all the 18 years in time series analysis. Mean age was 33.5 years (range 18–88 years). A significant majority 673 (69.4%) were below 40 years of age; P = 0.012. Females constituted 394 (40.6%) of cases. Postpartum CVT cases constituted 237 (30%). Interaction analysis showed younger age ( |
| Databáze: | OpenAIRE |
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