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Query: UMLS:C0020538 (hypertension)
 170,190 document(s) hit in 31,850,051 MEDLINE articles (0.00 seconds)

A 21-year-old woman with a 6-year history of ulcerative colitis admitted to our hospital with chest pain, cough and fever of unknown origin in August 1998. On admission, laboratory data showed positive inflammatory signs. A chest radiograph and chest computed tomogram (CT) revealed nodular shadows in the right upper lung field. Fifty days after admission, hypertension developed and a bruit was audible in the neck and the upper abdomen. Digital subtraction angiography showed stenosis in carotid, renal and right upper pulmonary arteries. On the basis of these results, a diagnosis of aortitis syndrome was made. Moreover, these findings indicated pulmonary infarction in the right upper lobe due to aortitis syndrome. Aortitis syndrome preceded by pulmonary infarction involvement is very rare. Autoimmune disorders may have been involved in this case because of the association with ulcerative colitis.
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PMID:[Aortitis syndrome associated with ulcerative colitis, preceded by pulmonary infarction involvement]. 1148 30

The physiological infrarenal aortic diameter varies between 12.4 mm in women an 27.6 mm in men. As defined, an aneurysmatic dilatation begins with 29 mm. According to that, 9% of all people above the age of 65 are affected by an abdominal aortic aneurysm (AAA). Compared with the female sex, the male sex predominates at a rate of about 5:1. The disease is predominant in men of the white race. In black men, black and white women the incidence of AAA is identical. 38 to 50 percent of the AAA patients (patients) suffer from hypertension, 33 to 60% from coronary, 28% from cerebrovascular and 25% from peripheral occlusive disease. The AAA expansion rate varies between 0.2 and 0.8 cm per year and is exponential from a diameter of 5 cm on. In autopsy studies, the rupture rates with AAA diameters of < 5 cm, between 5.1 and 6.9 cm, and of > 7 cm were below 5%, 39% and 65%, respectively. 70% of the AAA patients do not die of a rupture, but of a cardiac disease. Serum markers, such as metalloproteinases and procollagen peptides are significantly increased in AAA patients. Thoraco-abdominal aneurysms (TAA) make up only 2 to 5% of all degenerative aneurysms. 20 to 30% of the TAA patients are also affected by an AAA. 80% of the TAA are degenerative, 15 to 20% are a consequence of the chronic dissection--including 5% of Marfan patients--, 2% occur in case of infections and 1 to 2% in case of aortitis. The TAA incidence in 100,000 person-years is 5.9% during a monitoring period of 30 years. In case of TAA, an operation is indicated with a maximum diameter of 5.5 to 6 cm and more and, in case of a Marfan's syndrome (incidence of 1:10,000), with a maximum diameter of 5.5 cm and more. With regard to aorto-iliac occlusive diseases, there are defined 3 types of distribution. Type I refers to the region of the bifurcation itself. Type II defines the diffuse aorto-iliac spread of the disease. Type III designates multiple-level occlusions also beyond the inguinal ligament. Type I patients in most cases are female and more frequently suffer from hyperlipidaemia, while Type II patients are affected by hypertension and diabetes. Compared to Type II patients, Type I patients have a life expectancy that is 10 years higher. Type I and Type II patients often suffer from a pelvic claudication and, unlike Type III patients, are more frequently affected by arterio-arterial embolisms.
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PMID:[Epidemiology of aortic disease: aneurysm, dissection, occlusion]. 1155 76

Takayasu aortitis (TA) is a chronic inflammatory disease predominantly seen in young Asian women. The disease is idiopathic and largely affects the aorta and its major branches. The basic pathologic changes in TA are fibrosis and subsequent occlusion of the large arteries. TA is classically termed "pulseless" disease, with manifestations during the occlusive stage including limb ischemia, renovascular hypertension, and heart failure. Arterial dilation and aneurysm are largely unappreciated manifestations of TA, but they occur in as many as 32% of affected patients. We report chronic "burned out" TA in a 23-year-old Hispanic woman with isolated aneurysms of the descending thoracic aorta, abdominal aorta, and common iliac arteries, without occlusive disease.
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PMID:Multiple isolated aneurysms in a case of "burned out" Takayasu aortitis. 1275 60

Since 1959 the investigations on prevalence of hypertension and studies on the prevention and treatment of this disease have been carried out. The vascular mechanism of hypertension and the depressor effect of Chinese traditional herbs were also studied in Chinese Academy of Medical Sciences. The results revealed that: (1) The prevalence of hypertension in Chinese adults increased from 7.73% in 1979 to 11.26% in 1991, both much higher than that in 1959 (5.11%). The rate of awareness, treatment and control was only 26.3%, 12.1%, and 2.8% respectively. The risk factors of hypertension included overweight and alcohol drinking. High sodium, low potassium, low calcium, and low animal protein diet were also very important risk for elevation of blood pressure. Hypertension was the most important causal risk factor of coronary heart disease and stroke. (2) Hypertension diagnosis and staging criteria were established in 1959. Secondary hypertension was found to constitute 1.1% among community hypertensive patients. The new concept of aortitis was formed and found to be the most common cause of renal vascular hypertension. Patient education together with low dose compounds of antihypertensive drugs was implicated widely. Randomized clinical trials Syst-China, Post-stroke Antihypertensive Treatment Study, Chinese Acute Stroke Trial, and Chinese Cardiac Study 1 demonstrated benefits of treatment for hypertensive, stroke or acute myocardial infarction affordable by Chinese population at large. (3) A series of functional changes and abnormalities with evident hereditary characteristics were found in the processes of cellular Ca2+ transportation, utilization, metabolism and their modulation of the vascular smooth muscle in SHR, and SHRsp, which seem to be the principal cause of the increase in peripheral vascular resistance in hypertension. (4) Alkaloid of Rauwolfia verticilata and Ligustrazine had marked depressor effect. Flavones of Radix Pueraricae could reduce the cardiac and cerebral ischemic damage and symptoms in hypertensive patients.
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PMID:[A forty-year study on hypertension]. 1290 63

Sections of the ascending aorta of 27 cases of dissecting aneurysm were compared histologically with the ascending aortae of 27 age- and sex-matched normotensive controls and 27 age- and sex-matched hypertensive controls. Elastic fragmentation and loss was seen to a similar degree in each series. Strip-like areas of muscle necrosis appeared to be associated as much with hypertension as with dissection. Two cases of dissecting aneurysm showed giant-cell aortitis. Mucopolysaccharide ;cysts' were seen more frequently, but by no means invariably, in the dissecting series. The only abnormality that distinguished the dissecting aortae from the normotensive and hypertensive controls with any constancy was an increase in the degree of metachromasia of the ground substance.
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PMID:HISTOLOGY OF THE AORTIC MEDIA IN DISSECTING ANEURYSMS. 1415 47

The most common predisposing factor for aortic dissection is hypertension. Dissection is also seen in primary aortic diseases, including those that involve aortic inflammation. We report a case of successful repair of an acute type A aortic dissection in a patient with a history of temporal arteritis and pathologic evidence of giant cell aortitis. The literature concerning the association of aortic dissection and temporal arteritis is reviewed.
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PMID:Repair of acute type A aortic dissection associated with temporal arteritis. 1460 21

The aim of this retrospective study was to report our experience of the surgical treatment of renovascular hypertension in children and to define the role of surgery in the treatment of this form of hypertension. The author's series included 83 patients (49 girls, 34 boys), 28 months to 18 years of age (mean: 10.3) operated on from 1970 to 2001. All patients had elevated blood pressure and underwent the investigations usually performed in patients with hypertension. Lesions were bilateral in 28 cases. The operation was decided after failure of percutaneous angioplasty in the patients treated since 1982. Due to bilateral procedures and to secondary or late re-operations, the number of surgical procedures was 114 (15 nephrectomies and 99 arterial repairs). The repairs were performed by extracorporeal surgery in 25 cases and by conventional in situ surgery in 74 cases. Whenever an arterial substitute was necessary, an arterial autograft was preferred since this material does not undergo late degenerative changes with time. Fibrodysplasia of the renal artery was the prevailing pathologic finding (70%). Associated lesions were observed in 59% of the patients: coarctation of the abdominal aorta (23 patients), stenoses, obstructions or aneurysms of splanchnic arteries (23 lesions in 17 patients), pheochromocytoma (2 patients), arterial lesions of distant arterial territories in patients with Takayasu's aortitis (7 patients). There was no postoperative death in this series. Seven postoperative thromboses occurred (7% of the repairs). In the long-term follow-up, three recurrent stenoses and two aneurysms of a venous autograft were repaired surgically. In two patients, a stenosis of the opposite artery occurred and was also repaired. In two patients, a stenosis of the abdominal aorta worsened and required an aortic by-pass 3 and 12 years after the renal artery repair. In patients with Takayasu's disease, operations in other arterial territories (supra-aortic trunks, coronary arteries) were required in two patients. The complete cure of arterial hypertension was obtained in 82% of the patients. In young children, growth of the repairs was normal when age increased. Surgery still keeps a major place in the treatment of renovascular hypertension in children. Its prognosis is favourable since atheroma, visceral or renal lesions are usually lacking.
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PMID:[Role of surgery in the treatment of renovascular hypertension in the child]. 1497 69

Infectious aneurysm is a rare event, especially after the introduction of antibiotic therapy. However, its early detection is very important for timely treatment with antibiotics and surgical intervention. This pathology may generally be due to mycotic endocarditis or septic embolization, prevailing in the preantibiotic era, and to aortitis, whose incidence is actually increasing, mainly in subjects with preexisting large-vessel atherosclerosis and intimal defects. This clinical entity is usually defined as microbial arteritis and recognizes Salmonella spp as the microorganism most frequently isolated from blood or vascular tissue cultures. The authors present the case of a 56-year-old man with a history of hypertension that some weeks before admission manifested as hyperpyrexia and episodic lumbar pain, associated with hepatosplenomegaly and with a pulsing mass in the periumbilical region. Abdominal computed tomography (CT) scan documented a voluminous infrarenal aortic aneurysm with a markedly reduced and irregular vessel wall. The patient underwent surgical excision of the aneurysm, during which marked periaortic inflammation phenomena, complete absence of the posterior aortic wall for a length of 5-6 cm, and the exposure of the correspondent vertebral bodies were observed. Histopathologic examination of the aneurysmal tissue showed atheromatous and thrombotic aspects and confirmed strong signs of inflammation. This case may suggest that the occurrence of microbial aortitis, especially from Salmonella spp, should be taken into account in the presence of a septic status associated with back, abdominal, or thoracic pain.
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PMID:Salmonella aortic aneurysm: suggestions for diagnosis and therapy based on personal experience--a case report. 1554 58

Takayasu's arteritis (TA) is a granulomatous vasculitis of medium and large arteries, which most often presents as pulseless disease due to widespread arterial stenoses. Only the minority of TA patients have aortic valve insufficiency, which is due to aortic root dilatation following aortitis and aneurysm formation. No other cardiac valve is involved. We report a case of Takayasu's disease-related severe aortic insufficiency (AI) in a Filipino woman, which necessitated aortic valve replacement. It is important to consider TA in the differential diagnosis of AI in young women, particularly those with early-onset systemic hypertension and pulse deficits. Early diagnosis and therapy of TA can improve outcomes.
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PMID:Severe chronic aortic insufficiency requiring valve replacement: an infrequent complication of Takayasu's disease. 1683 88

Only 2 comprehensive surgical series, published in 1977 and 1983, have evaluated clinicopathologic features of the ascending aorta. Retrospective review of medical records and microscopic slides was performed on 513 consecutive patients with surgical resection of ascending aortic tissue (1985 to 1999). Patients were 2 to 89 years old (mean 59 y), and 303 (59%) were men. Aneurysm or dissection was the indication for surgery in 479. Aortic valves were also excised in 360. Systemic hypertension was present in 279, inherited connective tissue disease (ICTD) in 67, arteritis in 33, and acquired connective tissue disease in 16. Microscopy showed cystic medial degeneration (CMD) in 209, aortic dissection (AD) in 109 (with CMD in 56), normal media in 90, aortitis in 57 (with CMD in 14), and other findings in 48. The most significant, independent risk factor of CMD and AD was ICTD (confidence interval=7.61 and 2.26, respectively). Systemic hypertension was more common in patients with AD than without (P=0.0202). Normal media was the most common histologic finding associated with bicuspid aortic valve (P<0.0001). Among 57 patients with aortitis (giant cell in 39), ages ranged from 16 to 85 years (mean 64 y), and 42 (74%) were women; only 8 had Takayasu arteritis, and 11 had temporal or systemic arteritis. In surgically resected ascending aorta, the 3 most common histologic findings were CMD, AD, and normal media. ICTD, systemic hypertension, and bicuspid aortic valve were common comorbid findings. Giant cell aortitis occured predominantly in women, usually without systemic disease.
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PMID:Surgical pathology of the ascending aorta: a clinicopathologic study of 513 cases. 1693 61


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