European Journal of Vascular and Endovascular Surgery

2017

DOI: 10.1016/j.ejvs.2017.04.004

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Predictors Associated With Increased Prevalence of Abdominal Aortic Aneurysm in Chinese Patients with Atherosclerotic Risk Factors

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Abstract: Age ≥ 65 years, smoking, hypertension, and aortic root diameter > 30 mm emerged as independent predictors of AAA in Chinese patients. Stepwise increases in the prevalence of AAA were found to depend on the number of independent predictors. Ultrasound screening for AAA could be considered in these high risk patients, especially those with three or four predictors.

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Cited by 21 publications

(11 citation statements)

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“…Its diagnosis requires a combination of history findings, clinical features, and radiological and microbiological confirmation [4,14]. For general population in China, the abdominal aortic aneurysm in at-risk residents is 0.33%, and in 1582 consecutive patients with atherosclerotic risk factors and undergoing coronary angiography, the prevalence of abdominal aortic aneurysm is up to 1.6% in the whole study population and 2.9% in male patients aged over 65 years [43,44]. Comparatively, the incidence of mycotic aneurysm in the present study was 5.0% (8/ 159), which might be still under-diagnosed.…”

Section: Discussionmentioning

confidence: 99%

Mycotic aneurysm secondary to melioidosis in China: A series of eight cases and a review of literature

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et al. 2020

PLoS Negl Trop Dis

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Burkholderia pseudomallei is the causative agent of melioidosis, endemic in Southeast Asia and Northern Australia, and increasingly recognized in southern China, especially in Hainan Province. Mycotic aneurysm caused by B. pseudomallei is a rare but potentially severe illness with a high mortality rate. The clinical features of the mycotic aneurysm secondary to melioidosis have not been illustrated in China. Over a seven-year period (2013 to 2019), 159 patients with bacteremic melioidosis were retrospectively analyzed in Hainan province, China, of whom eight patients were confirmed to have mycotic aneurysm through the combination of imaging examination, pathologic examination and aneurysm tissue culture. We summarized these eight patients' clinical characteristics, demographical features, treatments and outcomes. The susceptibilities to five commonly-used antibiotics for these eight B. pseudomallei isolates were also determined by E-test strips. Furthermore, the mycotic aneurysm cases secondary to melioidosis retrieved from the literature were also reviewed. Of the eight cases, six had abdominal mycotic aneurysms, one had a left iliac aneurysm, and the other one had an infectious mesenteric aneurysm. They were aged from 48 to 69 years old, and had the underlying risk factors of diabetes mellitus (2 patients), long-term smoking (4 patients), hypertension (6 patients), and soil and water contact history (6 patients), respectively. The positive arterial aneurysm imaging was observed in all patients via computed tomography (CT) or angiography. Eight B. pseudomallei isolates collected from both blood and mycotic aneurysm tissues remained 100% susceptible to imipenem and ceftazidime. After surgery combined with antibiotic administration, six patients survived, with a mortality rate of 25%. In melioidosis endemic areas, the mycotic aneurysm secondary to melioidosis might be underdiagnosed, and increased awareness of predisposing risk factors and clinical features of the mycotic aneurysm is required. Following a positive B. pseudomallei blood culture, the diagnosis of mycotic aneurysm should be under consideration in PLOS NEGLECTED TROPICAL DISEASES

“…Its diagnosis requires a combination of history findings, clinical features, and radiological and microbiological confirmation [4,14]. For general population in China, the abdominal aortic aneurysm in at-risk residents is 0.33%, and in 1582 consecutive patients with atherosclerotic risk factors and undergoing coronary angiography, the prevalence of abdominal aortic aneurysm is up to 1.6% in the whole study population and 2.9% in male patients aged over 65 years [43,44]. Comparatively, the incidence of mycotic aneurysm in the present study was 5.0% (8/ 159), which might be still under-diagnosed.…”

Section: Discussionmentioning

confidence: 99%

Mycotic aneurysm secondary to melioidosis in China: A series of eight cases and a review of literature

¹

,

²

,

³

et al. 2020

PLoS Negl Trop Dis

View full text Add to dashboard Cite

Burkholderia pseudomallei is the causative agent of melioidosis, endemic in Southeast Asia and Northern Australia, and increasingly recognized in southern China, especially in Hainan Province. Mycotic aneurysm caused by B. pseudomallei is a rare but potentially severe illness with a high mortality rate. The clinical features of the mycotic aneurysm secondary to melioidosis have not been illustrated in China. Over a seven-year period (2013 to 2019), 159 patients with bacteremic melioidosis were retrospectively analyzed in Hainan province, China, of whom eight patients were confirmed to have mycotic aneurysm through the combination of imaging examination, pathologic examination and aneurysm tissue culture. We summarized these eight patients' clinical characteristics, demographical features, treatments and outcomes. The susceptibilities to five commonly-used antibiotics for these eight B. pseudomallei isolates were also determined by E-test strips. Furthermore, the mycotic aneurysm cases secondary to melioidosis retrieved from the literature were also reviewed. Of the eight cases, six had abdominal mycotic aneurysms, one had a left iliac aneurysm, and the other one had an infectious mesenteric aneurysm. They were aged from 48 to 69 years old, and had the underlying risk factors of diabetes mellitus (2 patients), long-term smoking (4 patients), hypertension (6 patients), and soil and water contact history (6 patients), respectively. The positive arterial aneurysm imaging was observed in all patients via computed tomography (CT) or angiography. Eight B. pseudomallei isolates collected from both blood and mycotic aneurysm tissues remained 100% susceptible to imipenem and ceftazidime. After surgery combined with antibiotic administration, six patients survived, with a mortality rate of 25%. In melioidosis endemic areas, the mycotic aneurysm secondary to melioidosis might be underdiagnosed, and increased awareness of predisposing risk factors and clinical features of the mycotic aneurysm is required. Following a positive B. pseudomallei blood culture, the diagnosis of mycotic aneurysm should be under consideration in PLOS NEGLECTED TROPICAL DISEASES

“…In China, a prospective observational study was conducted to evaluate the prevalence of AAA using abdominal aortic ultrasound images of 1,541 patients. Abdominal aortic ultrasound was found to have a prevalence of 1.6% in the whole study population and 2.9% in male patients aged over 65 years [11]. Matsumura et al [12] evaluated the prevalence of AAA using transthoracic echocardiography.…”

Section: Prevalence Of Aaamentioning

confidence: 99%

“…AAA was identified in 47 of the 1,818 participants (2.6%). Table 1 summarizes the prevalence of AAA in western and eastern countries [5–9,11–13].…”

Section: Prevalence Of Aaamentioning

confidence: 99%

A Comparison of Aortoiliac Disease between Eastern and Western Countries

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2019

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A variety of diseases are known to develop in the aortoiliac segment; these include abdominal aortic aneurysm (AAA) and aortoiliac occlusive disease. This review summarizes several differences of aortoiliac diseases between eastern and western populations. The prevalence of AAA was higher in western countries (4.57% to 19%) than in eastern countries (0.89% to 4.9%). Greater aortic bifurcation angles were observed in the eastern population, while longer common iliac arteries and aneurysm necks were found in the western population with AAA. However, the angle of the aneurysm was found to be more acute in patients from western countries. Several differences were found between patients from western countries and those from eastern countries regarding the diseases that occur in the aortoiliac segment and their anatomical characteristics. Therefore, different approaches to the treatment of aortoiliac diseases in these two groups should be considered.

“…Abdominal aortic aneurysm (AAA), a vascular disease with high disability and mortality, is associated with atherosclerosis and hypertension [1]. An abnormal vascular inflammatory response and abnormal vascular structure trigger the onset of aortic aneurysms.…”

Section: Introductionmentioning

confidence: 99%

Alterations in gut microbiota of abdominal aortic aneurysm mice

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et al. 2020

BMC Cardiovasc Disord

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Background: The gut microbiome plays an important role in various cardiovascular diseases, such as atherosclerosis and hypertension, which are associated with abdominal aortic aneurysms (AAAs). Methods: Here, we used 16S rRNA sequencing to explore gut microbiota in C57BL ApoE −/− mice with AAAs. A mouse model of abdominal aortic aneurysms was induced with angiotensin II (Ang II) (1000 ng/min per kg). On day 28 after the operation, fecal samples were collected and stored at − 80°C until DNA extraction. We determined the relative abundances of bacterial taxonomic groups using 16S rRNA amplicon metabarcoding, and sequences were analyzed using a combination of mother software and UPARSE. Results: We found that the gut microbiome was different between control and AAA mice. The results of correlation analysis between AAA diameter and the gut microbiome as well as LEfSe of the genera Akkermansia, Odoribacter, Helicobacter and Ruminococcus might be important in the progression of AAAs. Conclusions: AAA mice is subjected to gut microbial dysbiosis, and gut microbiota might be a potential target for further investigation.

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