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Query: UMLS:C0004153 (atherosclerosis)
 77,401 document(s) hit in 31,850,051 MEDLINE articles (0.00 seconds)

Popliteal artery aneurysms (PAAs) are rare in the general population, but are the most common peripheral aneurysms. PAAs are often bilateral and are associated with abdominal aortic aneurysms. They usually affect older men with established cardiovascular disease caused by atherosclerosis. Whenever they occur in younger men, other more unusual etiologies such as trauma, mycotic aneurysm, inflammatory arteritis or popliteal entrapment are responsible. The authors report a rare case of giant congenital PAA, revealed by acute limb ischemia in a 23-year-old patient. The evolution after resection of the popliteal aneurysm and end-to-end anastomosis with synthetic graft was favorable.
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PMID:A rare case of giant popliteal artery aneurysm in a young adult. 2188 75

An aneurysm arising in the distal anterior cerebral artery (DACA) is relatively rare. Among them, those in the non-branching segment are seldom reported so far. The authors present the case of an 87-year-old woman who developed intracerebral hemorrhage and acute hydrocephalus due to rupture of an aneurysm arising in the non-branching site of DACA. External ventricular drainage followed by aneurysm clipping by bifrontal craniotomy was performed as treatment. Microscopic observations revealed that the aneurysm was saccular-shaped, located at the non-branching site of the A3 portion of the anterior cerebral artery, and had significant atherosclerosis neither on its parent artery nor neck. Histopathological examinations of the aneurysm wall denied traumatic aneurysm or mycotic aneurysm, and showed partial disruption of the internal elastic lamina, suggesting a difference from common aneurysms arising at arterial branchings. Profound knowledge of this type of aneurysms would be useful in dealing with them at surgery.
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PMID:[Saccular aneurysm arising in the non-branching segment of the distal anterior cerebral artery with stalk-like narrow neck: a case report]. 2326 56

Mycotic aneurysms are uncommon, but are fatal without appropriate management. Previous reports have shown that anaerobes and gram-negative organisms are less common but more dangerous than other causative agents of mycotic aneurysm. We report the case of a 60-year-old man with poorly controlled diabetes mellitus and atherosclerosis in the aorta, and a 10-day of history of lower abdominal pain and fever. This man was diagnosed with an uncommon abdominal aorta mycotic aneurysm caused by Bacteroides thetaiotaomicron and Acinetobacter lwoffii. The aneurysm was successfully treated with antibiotics therapy and aorto-bi-external iliac artery bypass with debridement of the infected aortic wall. We present this case together with a review of the relevant literature.
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PMID:Mycotic abdominal aortic aneurysm caused by bacteroides thetaiotaomicron and acinetobacter lwoffii: the first case in Korea. 2469 72

Popliteal artery aneurysms (PAAs) are rare in general population but represent the second most common peripheral arterial aneurysms following those located in the aortoiliac segment. They usually affect men over 60 years old with established cardiovascular disease caused by atherosclerosis. Other more unusual conditions such as trauma, congenital popliteal aneurysm, mycotic aneurysm, inflammatory arteritis, or popliteal entrapment are responsible. The authors report the first ever case of a male diagnosed with chronic renal failure with giant popliteal artery aneurysm. We have successfully resected the aneurysm and revascularized with synthetic graft.
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PMID:Giant popliteal artery aneurysm: case report and review of the literature. 2522 86

The mortality of patients with mycotic aneurysms is high, especially in East Asia, and infection by Salmonella species is the most common. Our study aimed to improve prognosis of adult mycotic aneurysms with early diagnosis and accurate treatment. Four adult patients with mycotic aneurysm caused by Salmonella were included and analyzed by single-center retrospective analysis. Cases reported in the literature during the past 10 years were also summarized. The average age of the 4 male patients was 61.25 years, while that of the 53 cases reported in the literature was 65.13 years. Hypertension, diabetes, and atherosclerosis were common complications. Most patients presented fever and experienced pain at the corresponding position of the aneurysm. Laboratory examination found an increased number of white blood cells accompanied by an increase in inflammatory markers. Most aneurysms were found in the abdominal aorta, while the rupture of an aneurysm was the most common complication. The mortality rates were 21.43 and 7.14% after open surgery or endovascular aneurysm repair (EVAR) intervention, respectively. The recurrence rates of infection were 0 and 17.85% for both treatments, respectively. The mortality rate of mycotic aneurysm caused by Salmonella infection was high in middle-aged males with hypertension, diabetes, and atherosclerosis. The possibility of a Salmonella-infected aneurysm should be considered in these high-risk groups presenting chills, fever, chest, and back pain. Open surgery was superior to EVAR treatment in the clearance of infected foci and the reduction of postoperative recurrence. The recurrence of postoperative infection can be prevented by intravenous antibiotic therapy for 6 weeks post-surgery.
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PMID:Mycotic aneurysm due to Salmonella species: clinical experiences and review of the literature. 2994 49


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