Skip to main content
Top
Published in: BMC Neurology 1/2021

Open Access 01-12-2021 | Subarachnoid Hemorrhage | Research

Weather conditions associated with subarachnoid hemorrhage: a multicenter case-crossover study

Authors: Michael Kockler, Peter Schlattmann, Mario Walther, Georg Hagemann, Philipp Nils Becker, Steffen Rosahl, Otto W. Witte, Matthias Schwab, Florian Rakers

Published in: BMC Neurology | Issue 1/2021

Login to get access

Abstract

Background

Most spontaneous subarachnoid hemorrhages (SAH) occur unexpectedly and independently of classical risk factors. In the light of increasing climate variability and change, we investigated weather and rapid weather changes as possible short-term risk factors for SAH.

Methods

Seven hundred ninety one patients admitted to three major hospitals in Germany for non-traumatic SAH with a determinable onset of SAH symptoms were included in this hospital-based, case-crossover study. The effects of atmospheric pressure, relative air humidity, and ambient temperature and their 24 h changes on the onset of SAH under temperate climate conditions were estimated.

Results

There was no association between the risk of SAH and 24 h weather changes, mean daily temperature or mean relative air humidity in the overall population. For every 11.5 hPa higher mean daily atmospheric pressure, the risk of SAH increased by 15% (OR 1.15, 95% confidence interval (CI) 1.01–1.30) in the entire study population with a lag time of three days.

Conclusion

Our results suggest no relevant association between 24 h-weather changes or absolute values of ambient temperature and relative humidity and the risk of SAH. The medical significance of the statistically weak increase in SAH risk three days after exposure to high atmospheric pressure is unclear. However, as the occurrence of stable high-pressure systems will increase with global warming and potentially affect SAH risk, we call for confirming studies in different geographical regions to verify our observations.
Literature
1.
go back to reference Mitchell D, Kornhuber K, Huntingford C, Uhe P. The day the 2003 European heatwave record was broken. Lancet Planetary Health. 2019;3(7):e290–2.CrossRef Mitchell D, Kornhuber K, Huntingford C, Uhe P. The day the 2003 European heatwave record was broken. Lancet Planetary Health. 2019;3(7):e290–2.CrossRef
2.
go back to reference Organization WH. Operational framework for building climate resilient health systems. Geneva: World Health Organization; 2015. Organization WH. Operational framework for building climate resilient health systems. Geneva: World Health Organization; 2015.
3.
go back to reference Feigin VL, Lawes CM, Bennett DA, Anderson CS. Stroke epidemiology: a review of population-based studies of incidence, prevalence, and case-fatality in the late 20th century. Lancet Neurol. 2003;2(1):43–53.CrossRef Feigin VL, Lawes CM, Bennett DA, Anderson CS. Stroke epidemiology: a review of population-based studies of incidence, prevalence, and case-fatality in the late 20th century. Lancet Neurol. 2003;2(1):43–53.CrossRef
6.
go back to reference van Gijn J, Rinkel GJ. Subarachnoid haemorrhage: diagnosis, causes and management. Brain. 2001;124(Pt 2):249–78.CrossRef van Gijn J, Rinkel GJ. Subarachnoid haemorrhage: diagnosis, causes and management. Brain. 2001;124(Pt 2):249–78.CrossRef
10.
go back to reference Umemura K, Hirashima Y, Kurimoto M, Kuwayama N, Kubo M, Origasa H, et al. Involvement of meteorological factors and sex in the occurrence of subarachnoid hemorrhage in Japan. Neurol Med Chir. 2008;48(3):101–7.CrossRef Umemura K, Hirashima Y, Kurimoto M, Kuwayama N, Kubo M, Origasa H, et al. Involvement of meteorological factors and sex in the occurrence of subarachnoid hemorrhage in Japan. Neurol Med Chir. 2008;48(3):101–7.CrossRef
11.
go back to reference Lejeune JP, Vinchon M, Amouyel P, Escartin T, Escartin D, Christiaens JL. Association of occurrence of aneurysmal bleeding with meteorologic variations in the north of France. Stroke J Cereb Circulation. 1994;25(2):338–41.CrossRef Lejeune JP, Vinchon M, Amouyel P, Escartin T, Escartin D, Christiaens JL. Association of occurrence of aneurysmal bleeding with meteorologic variations in the north of France. Stroke J Cereb Circulation. 1994;25(2):338–41.CrossRef
14.
go back to reference Peel MC, Finlayson BL, Mcmahon TA. Updated world map of the Köppen-Geiger climate classification. Hydrol Earth Syst Sci Discussions. 2007;4(2):439–73. Peel MC, Finlayson BL, Mcmahon TA. Updated world map of the Köppen-Geiger climate classification. Hydrol Earth Syst Sci Discussions. 2007;4(2):439–73.
17.
go back to reference Navidi W. Bidirectional case-crossover designs for exposures with time trends. Biometrics. 1998;54(2):596–605.CrossRef Navidi W. Bidirectional case-crossover designs for exposures with time trends. Biometrics. 1998;54(2):596–605.CrossRef
19.
go back to reference McNutt LA, Wu C, Xue X, Hafner JP. Estimating the relative risk in cohort studies and clinical trials of common outcomes. Am J Epidemiol. 2003;157(10):940–3.CrossRef McNutt LA, Wu C, Xue X, Hafner JP. Estimating the relative risk in cohort studies and clinical trials of common outcomes. Am J Epidemiol. 2003;157(10):940–3.CrossRef
21.
go back to reference Peters A, Dockery DW, Muller JE, Mittleman MA. Increased particulate air pollution and the triggering of myocardial infarction. Circulation. 2001;103(23):2810–5.CrossRef Peters A, Dockery DW, Muller JE, Mittleman MA. Increased particulate air pollution and the triggering of myocardial infarction. Circulation. 2001;103(23):2810–5.CrossRef
27.
go back to reference Jehle D, Moscati R, Frye J, Reich N. The incidence of spontaneous subarachnoid hemorrhage with change in barometric pressure. Am J Emerg Med. 1994;12(1):90–1.CrossRef Jehle D, Moscati R, Frye J, Reich N. The incidence of spontaneous subarachnoid hemorrhage with change in barometric pressure. Am J Emerg Med. 1994;12(1):90–1.CrossRef
28.
go back to reference Landers AT, Narotam PK, Govender ST, van Dellen JR. The effect of changes in barometric pressure on the risk of rupture of intracranial aneurysms. Br J Neurosurg. 1997;11(3):191–5.CrossRef Landers AT, Narotam PK, Govender ST, van Dellen JR. The effect of changes in barometric pressure on the risk of rupture of intracranial aneurysms. Br J Neurosurg. 1997;11(3):191–5.CrossRef
29.
go back to reference Oyoshi T, Nakayama M, Kuratsu J. Relationship between aneurysmal subarachnoid hemorrhage and climatic conditions in the subtropical region, Amami-Oshima, in Japan. Neurol Med Chir . 1999;39(8):585–90 discussion 90–1.CrossRef Oyoshi T, Nakayama M, Kuratsu J. Relationship between aneurysmal subarachnoid hemorrhage and climatic conditions in the subtropical region, Amami-Oshima, in Japan. Neurol Med Chir . 1999;39(8):585–90 discussion 90–1.CrossRef
30.
go back to reference Kawai K, Nonaka K, Suzuki H, Kirino T, Tamura A. Differential effects of activity and climate on onset of subarachnoid hemorrhage. Neurol Med Chir . 2001;41(5):229–36 discussion 36–7.CrossRef Kawai K, Nonaka K, Suzuki H, Kirino T, Tamura A. Differential effects of activity and climate on onset of subarachnoid hemorrhage. Neurol Med Chir . 2001;41(5):229–36 discussion 36–7.CrossRef
33.
go back to reference Law HY, Wong GK, Chan DT, Wong L, Poon WS. Meteorological factors and aneurysmal subarachnoid haemorrhage in Hong Kong. Hong Kong Med J Xianggang yi xue za zhi / Hong Kong Acad Med. 2009;15(2):85–9. Law HY, Wong GK, Chan DT, Wong L, Poon WS. Meteorological factors and aneurysmal subarachnoid haemorrhage in Hong Kong. Hong Kong Med J Xianggang yi xue za zhi / Hong Kong Acad Med. 2009;15(2):85–9.
35.
go back to reference Bender R, Lange S. Adjusting for multiple testing—when and how? J Clin Epidemiol. 2001;54(4):343–9.CrossRef Bender R, Lange S. Adjusting for multiple testing—when and how? J Clin Epidemiol. 2001;54(4):343–9.CrossRef
36.
go back to reference Perneger TV. What's wrong with Bonferroni adjustments. BMJ. 1998;316(7139):1236–8.CrossRef Perneger TV. What's wrong with Bonferroni adjustments. BMJ. 1998;316(7139):1236–8.CrossRef
50.
go back to reference Jehn M, Appel LJ, Sacks FM, Miller ER 3rd, Group DCR. The effect of ambient temperature and barometric pressure on ambulatory blood pressure variability. Am J Hypertens. 2002;15(11):941–5.CrossRef Jehn M, Appel LJ, Sacks FM, Miller ER 3rd, Group DCR. The effect of ambient temperature and barometric pressure on ambulatory blood pressure variability. Am J Hypertens. 2002;15(11):941–5.CrossRef
Metadata
Title
Weather conditions associated with subarachnoid hemorrhage: a multicenter case-crossover study
Authors
Michael Kockler
Peter Schlattmann
Mario Walther
Georg Hagemann
Philipp Nils Becker
Steffen Rosahl
Otto W. Witte
Matthias Schwab
Florian Rakers
Publication date
01-12-2021
Publisher
BioMed Central
Published in
BMC Neurology / Issue 1/2021
Electronic ISSN: 1471-2377
DOI
https://doi.org/10.1186/s12883-021-02312-7

Other articles of this Issue 1/2021

BMC Neurology 1/2021 Go to the issue