2001
DOI: 10.2176/nmc.41.229
|View full text |Cite
|
Sign up to set email alerts
|

Differential Effects of Activity and Climate on Onset of Subarachnoid Hemorrhage.

Abstract: Conflicting findings of the effect of climate on onset of subarachnoid hemorrhage (SAH) may result from the influence of strenuous activities which can trigger aneurysmal rupture independent of climatological factors. The effect of climate and patient activities on onset of SAH were analyzed. The clinical records of 786 consecutive patients with aneurysmal SAH admitted to our hospital for 10 years were reviewed. Activities at onset were categorized according to the intensity of strain at onset. Seasonal variat… Show more

Help me understand this report

Search citation statements

Order By: Relevance

Paper Sections

Select...
2
1
1
1

Citation Types

1
7
0

Year Published

2004
2004
2020
2020

Publication Types

Select...
7
2

Relationship

0
9

Authors

Journals

citations
Cited by 22 publications
(8 citation statements)
references
References 29 publications
1
7
0
Order By: Relevance
“…Several studies have reported a possible correlation between SAH occurrence and atmospheric pressure, humidity, or insolation. [ 7 – 10 , 13 , 38 , 39 ] In the present study, we observed strong correlation between the incidence of SAH and temperature, atmospheric pressure, and precipitation ( S5 Table ). According to Gay-Lussac's Law (k = pressure/temperature; k = constant), atmospheric pressure is dependent on air temperature.…”
Section: Discussionsupporting
confidence: 62%
“…Several studies have reported a possible correlation between SAH occurrence and atmospheric pressure, humidity, or insolation. [ 7 – 10 , 13 , 38 , 39 ] In the present study, we observed strong correlation between the incidence of SAH and temperature, atmospheric pressure, and precipitation ( S5 Table ). According to Gay-Lussac's Law (k = pressure/temperature; k = constant), atmospheric pressure is dependent on air temperature.…”
Section: Discussionsupporting
confidence: 62%
“…Among the six highly-ranked prefectures continuously for 3 years with aSAH incidence, four prefectures (Aomori, Iwate, Akita and Yamagata) are in the northern territory, and two (Kochi and Kumamoto) in the south. Although climactic factors are expected to affect aneurysmal rupture [ 18 , 19 ], the climate does not completely explain the regional differences, since in several other northern territories, such as Hokkaido or Miyagi, aSAH is not so frequent, and the climate in Kochi or Kumamoto, where high aSAH incidence is observed, is very different from that in the northern territory. Other possible factors resulting in the regional difference are genetic factors [ 20 ], dietary habits in the region [ 21 ], or other unknown environmental factors.…”
Section: Discussionmentioning
confidence: 99%
“…Aneurysmal rupture can also occur during stressful or strenuous activities such as sexual intercourse, labor, defecation, physical exertion, or sports [55]. However, these external factors may in fact conceal the climate impact, as numerous studies indicate a higher incidence of aneurysm rupture during the winter season, as well as during daytime [56][57][58][59].…”
Section: Natural History Of Unruptured Aneurysmsmentioning
confidence: 99%