Seasonal variation in the incidence of ruptured abdominal aortic aneurysm

Liapis, Christos D.; Sechas, M; Iliopoulos, Dimitrios; Dousaitoy, B.; Verikopkos, C.; Patapis, Paul; Zografos, George; Kolyva, B.; Skalkeas, G

doi:10.1016/s0950-821x(05)80290-7

Cited by 36 publications

(31 citation statements)

References 4 publications

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“…Of 164 potentially relevant articles screened initially, we identifi ed 14 eligible studies [7][8][9][10][11][12][13][14][15][16][17][18][19][20] enrolling a total of 3,798 patients with RAAA (Table I).…”

Section: Resultsmentioning

confidence: 99%

“…Three studies [8,12,18] enrolled exclusive patients with operated RAAA. Studies were performed in various countries, such as Australia [8], France [9], Germany [7], Greece [15,20], Ireland [11], Italy [16], Sweden [19], Turkey [13], and the United Kingdom [10,12,14,17,18]. Despite the noted heterogeneity in design among the included studies, there was suffi cient similarity between the populations and the hypotheses to merit inclusion of all 14 studies in the quantitative meta-analysis.…”

Section: Limitationsmentioning

confidence: 99%

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A meta-analysis of monthly variation in occurrence of abdominal aortic aneurysm rupture

Takagi

Ando

Umemoto

2017

Vasa

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Summary:Background: We performed a meta-analysis to assess the presence of an annual rhythmic variability of ruptured abdominal aortic aneurysm (RAAA) onset. Patients and methods: Eligible studies were observational studies enrolling patients with RAAA and reporting monthly incidence of RAAA. Study-specifi c estimates, i. e. monthly incidence of RAAA, were combined using the random-effects model. Chronobiological analysis was performed by applying a partial Fourier series to pooled monthly incidence by using the weighted least-squares method. Results: We identifi ed 14 eligible studies enrolling a total of 3,798 patients with RAAA. Pooled monthly incidence of RAAA was 8.7 % in January, 7.7 % in February, 8.7 % in March, 7.3 % in April, 7.8 % in May, 7.2 % in June, 7.0 % in July, 7.0 % in August, 8.1 % in September, 8.8 % in October, 8.4 % in November, and 8.3 % in December. Chronobiological analysis identifi ed a signifi cant (p = 0.0020) annual pattern in the occurrence of RAAA with a peak in December to January and a nadir in June to July. Pooled analysis demonstrated signifi cantly more incidence in December than in June (p = 0.03) as well as in January than in July (p = 0.05). Conclusions: A signifi cant annual pattern in the occurrence of RAAA with a peak in December to January and a nadir in June to July was identifi ed with signifi cantly more incidence in December than in June and in January than in July. Keywords:Abdominal aortic aneurysm, meta-analysis, monthly variation, rupture ever, is suggested to be distinct from that of aortic dissection. Synchronous existence of AAA and AAD is believed to be rare [5], and AAD develops in the absence of a preexisting aortic aneurysm in most (> 80 %) cases [6]. Mechanisms for the rupture of AAAs and those for onset of aortic dissection may be not the same. In this article, we performed a meta-analysis to assess the presence of an annual rhythmic variability of exclusive RAAA onset. Materials and methodsAll studies investigating monthly incidence of RAAA were identifi ed using a 2-level search strategy. First, databases including MEDLINE and EMBASE were searched through March 2017 using web-based search engines (PubMed and OVID). Second, relevant studies were identifi ed through a manual search of secondary sources including references of initially identifi ed articles and a search of reviews and commentaries. All references were downloaded for consolidation, elimination of duplicates,

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Section: Resultsmentioning

confidence: 99%

Section: Limitationsmentioning

confidence: 99%

A meta-analysis of monthly variation in occurrence of abdominal aortic aneurysm rupture

Takagi

Ando

Umemoto

2017

Vasa

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“…Many investigators have demonstrated a seasonal variation in the incidence of ruptured abdominal aortic aneurysm (RAAA), with a preponderance of such events occurring in the winter and spring months (although there is no consensus on the month of peak rupture) [3][4][5][6][7][8][9]. Atmospheric pressure, being lower in the winter months, is one meteorological variable, which mirrors this pattern [10].…”

Section: Introductionmentioning

confidence: 99%

Atmospheric pressure variations and abdominal aortic aneurysm rupture

et al. 2008

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“…In addition to the research performed in the fields of pathology and molecular biology, investigations have been conducted focusing on other factors that are potentially related to aneurysm ruptures. One interesting possible factor in this regard is the influence of weather conditions, primarily the influence of the atmospheric pressure on the potential for an aneurysm rupture [5][6][7]. Despite the important role of the AAA's diameter itself, an aneurysm rupture may also occur either in cases of small aneurysms or in areas that do not necessarily have the largest diameter.…”

Section: Introductionmentioning

confidence: 99%

“…Conflicting results are found in the available literature concerning the influence of atmospheric pressure on aneurysm rupture [5][6][7][9][10][11][12][13]. The relatively small sizes of the evaluated populations and the lack of an analysis of the aneurysms' sizes did not allow determination of the influence of the atmospheric pressure on the AAA ruptures.…”

Section: Introductionmentioning

confidence: 99%

The influence of atmospheric pressure on aortic aneurysm rupture — is the diameter of the aneurysm important?

et al. 2015

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A b s t r a c tBackground: The rate of aortic aneurysm rupture correlates with the aneurysm's diameter, and a higher rate of rupture is observed in patients with larger aneurysms. According to the literature, contradictory results concerning the relationship between atmospheric pressure and aneurysm size have been reported. Aim:In this paper, we assessed the influence of changes in atmospheric pressure on abdominal aneurysm ruptures in relationship to the aneurysm's size. Methods:The records of 223 patients with ruptured abdominal aneurysms were evaluated. All of the patients had been admitted to the department in the period 1997-2007 from the Silesia region. The atmospheric pressures on the day of the rupture and on the days both before the rupture and between the rupture events were compared. The size of the aneurysm was also considered in the analysis.Results: There were no statistically significant differences in pressure between the days of rupture and the remainder of the days within an analysed period. The highest frequency of the admission of patients with a ruptured aortic aneurysm was observed during periods of winter and spring, when the highest mean values of atmospheric pressure were observed; however, this observation was not statistically confirmed. A statistically non-significant trend towards the higher rupture of large aneurysms (> 7 cm) was observed in the cases where the pressure increased between the day before the rupture and the day of the rupture. This trend was particularly pronounced in patients suffering from hypertension (p = 0.1). Conclusions:The results of this study do not support the hypothesis that there is a direct link between atmospheric pressure values and abdominal aortic aneurysm ruptures.

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Seasonal variation in the incidence of ruptured abdominal aortic aneurysm

Cited by 36 publications

References 4 publications

A meta-analysis of monthly variation in occurrence of abdominal aortic aneurysm rupture

A meta-analysis of monthly variation in occurrence of abdominal aortic aneurysm rupture

Atmospheric pressure variations and abdominal aortic aneurysm rupture

The influence of atmospheric pressure on aortic aneurysm rupture — is the diameter of the aneurysm important?

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