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:: Volume 24, Issue 3 (10-2022) ::
J Gorgan Univ Med Sci 2022, 24(3): 86-92 Back to browse issues page
The Impact of Meteorological Factors and Geomagnetic Activity on Occurrence of Stroke in Northeast of Iran
Milad Niknam Azodi1 , Fatemeh Ostvar1 , Abolfazl Amjadipour1 , Sima Besharat2 , Behfar Taziki1 , Fahimeh Abdollahi3 , Seyed Aidin Sajedi 4
1- General Physician, Clinical Research Development Unit (CRDU), Sayad Shirazi Hospital, Golestan University of Medical Sciences, Gorgan, Iran.
2- Medical Doctor, Ph.D in Biomedicine, Associate Professor, Clinical Research Development Unit (CRDU), Golestan Research Center of Gastroenterology & Hepatology (GRCGH), Sayad Shirazi Hospital, Golestan University of Medical Sciences, Gorgan, Iran.
3- Pulmonary Fellowship, Clinical Research Development Unit (CRDU), Sayad Shirazi Hospital, Golestan University of Medical Sciences, Gorgan, Iran. Department of the Internal Medicine, Ghaem Hospital, Mashhad University of Medical Sciences, Mashhad, Iran.
4- Neurologist, Assistant Professor, Clinical Research Development Unit (CRDU), Sayad Shirazi Hospital, Golestan University of Medical Sciences, Gorgan, Iran. , Dr.sajedy@gmail.com
Abstract:   (2087 Views)
Background and Objective: Stroke has a high prevalence and is associated with a high premature mortality rate. Thus, it is important to identify the effective factors in increasing the incidence of stroke. The aim of this study was to investigate the role of seasonal changes and environmental factors in the occurrence of stroke.
Methods: This descriptive-analytical study was done on 3,639 patients including 3,102 (85.3%) with ischemic stroke, 472 (12.9%) with intracerebral hemorrhage and 65 (1.9%) with subarachnoid hemorrhage patients. After measuring environmental factors such as air temperature, air pressure, humidity and geomagnetic field, admission data of stroke patients between 2015-2019 were extracted from the Sayyad Shirazi Hospital information system.
Results: The mean occurrence of intracerebral hemorrhage was highest in winter, especially in January and March, and lowest in summer, especially in July and August. Intracerebral hemorrhage had a positive significant correlation with air pressure (P=0.001, r=0.452) and a negative correlation with ambient temperature (P<0.001, r= - 0.457). Subarachnoid hemorrhage and ischemia were not related to the season or the month. It was also found that ischemic stroke had a significant positive correlation with geomagnetic field fluctuations. Subarachnoid hemorrhage was not associated with any of the variables, but intracerebral hemorrhage was significantly positively associated with air pressure and inversely associated with temperature.
Conclusion: This study illustrated that winter, low temperature, high air pressure and high geomagnetic fluctuations are associated with a higher risk of stroke. Therefore, the underlying physiopathological causes of this relationship should be carefully investigated in future studies.
 
Keywords: Ischemic Stroke [MeSH], Environment [MeSH], Temperature [MeSH], Geomagnetic Activity , Atmospheric Pressure [MeSH], Humidity [MeSH]
Article ID: Vol24-40
Full-Text [PDF 574 kb]   (5925 Downloads)    
Type of Study: Original Articles | Subject: Neurology
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Niknam Azodi M, Ostvar F, Amjadipour A, Besharat S, Taziki B, Abdollahi F et al . The Impact of Meteorological Factors and Geomagnetic Activity on Occurrence of Stroke in Northeast of Iran. J Gorgan Univ Med Sci 2022; 24 (3) :86-92
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Volume 24, Issue 3 (10-2022) Back to browse issues page
مجله دانشگاه علوم پزشکی گرگان Journal of Gorgan University of Medical Sciences
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