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排序方式: 共有1077条查询结果,搜索用时 31 毫秒
1.
C Klonaris A Katsargyris C Bakoyannis S Georgopoulos O Michail A Giannopoulos E Bastounis 《International angiology》2007,26(2):189-192
A 68-year-old woman with a left renal artery aneurysm underwent successful endovascular repair with the use of a commercial type self-expanding stent-graft. Complete aneurysm exclusion was achieved after stent-graft expansion. A side branch vessel was occluded after stent-placement, resulting in a small upper lobe renal perfusion defect. There were no other complications. The aneurysm remained excluded and its greatest diameter has been reduced from 2.6 cm to 1.95 cm, 10 months after treatment. Renal function remained normal. 相似文献
2.
Carotid baroreflex function ceases
during vasovagal syncope 总被引:2,自引:0,他引:2
Shigehiko Ogoh PhD Stefanos Volianitis PhD Peter B. Raven PhD Niels H. Secher MD 《Clinical autonomic research》2004,14(1):30-33
Abstract. Despite the arterial baroreflex control of heart rate and
blood pressure, vasovagal syncope is a common cause of loss of
consciousness in people exposed to stimuli that reduce the
central blood volume, such as head-up tilt. Carotid baroreflex
function was evaluated using a rapid pulse train of neck
pressure and neck suction in three conscious volunteers who
developed a vasovagal episode during head-up tilt. The maximal
gain of the carotid-heart rate and carotid-blood pressure
baroreflex function curves were identified as measures of
carotid baroreceptor responsiveness. When presyncopal symptoms
developed, one further baroreflex assessment was obtained before
the subjects were returned to the supine position. The
bradycardia and hypotension exhibited during pre-syncope and
syncope reflected a leftward and downward relocation of both the
cardiac and vasomotor stimulusresponse curves. In addition,
during the vasovagal syncope, baroreflex control was suppressed
as blood pressure remained low during neck pressure stimuli. In
conclusion, arterial baroreflex function ceases during vasovagal
syncope. 相似文献
3.
Ara G. Hovanessian Eliane Meurs Odile Aujean Catherine Vaquero Simon Stefanos Ernesto Falcoff 《Virology》1980,106(1):195-204
Treatment of mouse L929 cells with immune T (type II) interferon resulted in the induction of two double-stranded (ds) RNA-dependent enzymes which have been described previously in viral (type I) interferon-treated cells: pppA(2′p5′A)n synthetase and protein kinase(s). The induction of these enzymes by T interferon was blocked by anti-T but not by antiviral interferon serum. The kinetics of the development of the antiviral state along with a comparison of the levels of pppA(2′p5′A)n synthetase and protein kinase in T and viral interferon-treated cells were investigated. In addition, [35S]methionine-labeled extracts from control, T, and viral inteferon-treated cells were analyzed by sodium dodecyl sulfate-polyacrylamide gel electrophoresis and two-dimensional gel electrophoresis. Extracts from cells treated with either type of interferon were found to contain several identical proteins, of estimated molecular weights 60,000, 88,000, and 120,000, which were absent or found at much lower levels in preparations from control cells. The newly synthesized proteins can be partially purified by chromatography on columns of poly(I)·poly(C)-Sepharose, thus providing a convenient method for their further characterization. These results show that treatment of cells with T interferon results in the induction of intracellular events identical to those observed in viral interferon-treated cells. 相似文献
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6.
Jiolanda Zika Sotirios Giannopoulos Ioannis Kastanioudakis Athanasios P. Kyritsis Spyridon Voulgaris 《The journal of spinal cord medicine》2020,43(2):206-210
Context/Objective: To investigate prospectively preoperative parameters that might be related to the outcome of surgically treated patients for cervical spondylotic myelopathy (CSM).Design: Prospective study.Setting: Single Center in Ioannina, Greece.Participants: Thirty-six patients were included in the study. There were 21 males and 15 females, mean age 50.8 years, range 39–70 years. The mean BMI was 27.3.Outcome measures: From each patient, we recorded age, sex, BMI, symptoms, duration of symptoms, comorbidities, lifestyle, myelopathy grade based on MRI and levels of compression. All patients completed the modified JOA (mJOA) and NPE questionnaires preoperatively and at 1, 3, 12 months and 5-years postoperatively.Results: The mean mJOA score significant improved from 10.8?±?1.9 points preoperatively to 16.6?±?2.2 points at 12 months postoperatively. The mean mJOA score at 5-years postoperatively was 15.5?±?3 points. The difference was still highly significant. The mean NPE score significant improved from 59.8?±?12.2 points preoperatively to 28.2?±?8.5 points at 1 month, to 35.8?±?8.1 points at 3 month and to 28.2?±?8.8 points at 12 months postoperatively. Younger patients had significant higher baseline mJOA scores and significant higher mJOA scores 5-year postoperatively. No correlation was found between sex, BMI, symptom duration, baseline mJOA or myelopathy grade and outcome at 12 months or 5-year postoperatively.Conclusion: Age was highly predictive factor of outcome for patients undergoing surgical treatment of CSM. 相似文献
7.
Stefanos Tyrovolas MSc PhD cand. George Pounis MSc Vassiliki Bountziouka MSc PhD cand. Evangelos Polychronopoulos MD PhD 《Journal of nutrition in gerontology and geriatrics》2013,32(3):311-324
The aim of the present work was to evaluate the repeatability and the validity of a short food frequency questionnaire (FFQ) that could be used for older people living in Mediterranean areas. The semi-quantitative FFQ included questions regarding the frequency of consumption of the main food groups and beverages typically consumed in the Mediterranean areas as well as some questions regarding eating habits of older persons. During 2006–2007, for the repeatability assessment (within 10–30 days), 150 individuals (51 ± 17 yrs, 40% males) were studied, while another 190 individuals (74 ± 9 yrs, 52% males) were enrolled for the validation purposes. Agreement of the FFQ with the 3-day food records was evaluated using the Bland–Altman method and the Kendall's tau-b coefficient. Repeatability was tested using the Cohen's kappa coefficient. Between 3-day food records and the FFQ, good agreement for alcohol (tau-b = 0.64, p < 0.001) was found, while moderate agreement for food and beverage groups of greens (tau-b = 0.32, p < 0.001), fruits (tau-b = 0.35, p < 0.001), cereals (tau-b = 0.61, p < 0.001), sweets (tau-b = 0.51, p < 0.001), and coffee (tau-b = 0.58, p < 0.001) was observed. Low, but still significant, agreement for fish (tau-b = 0.21, p = 0.001), legumes (tau-b = 0.23, p < 0.001), vegetables (tau-b = 0.23, p < 0.001), pasta (tau-b = 0.25, p < 0.001), potatoes (tau-b = 0.17, p = 0.006) and meat consumption (tau-b = 0.14, p < 0.001) were also found. The FFQ was also valid regarding the estimation of macronutrients and energy intake. Sensitivity analyses by sex, age category (≤ or > 75 yrs), and education status showed similar validity of the FFQ in each subgroup, except for elders older than 75 years. The repeatability of the FFQ was fair in all foods tested (Cohen's kappa coefficients varied between 0.15–0.39, p-values < 0.05). The suggested FFQ seems to be a reasonably valid and repeatable measure of dietary intake and can be used in older persons living in the Mediterranean areas. 相似文献
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9.
Kostas Fasoulas Athanasios Beltsis Taxiarchis Katsinelos Eleni Dimou Mary Arvaniti Anna Charsoula Victor Gourvas Stefanos Atmatzidis Grigoris Chatzimavroudis Panagiotis Katsinelos 《Saudi Journal Of Gastroenterology》2012,18(2):146-148
Mesenteric panniculitis (MP) is a rare inflammatory and fibrotic disease of the mesentery of unknown etiology. It has various clinical and radiological manifestations, posing a diagnostic challenge for clinicians. Its diagnosis is indicated via radiologic imaging and is usually confirmed via peritoneal biopsies. We describe a case of a patient with histopathologically proven MP, in which steroid dependence was successfully managed with colchicine. 相似文献
10.
Hybrid imaging for ischemic heart disease refers to the fusion of information from a single or usually from multiple cardiovascular imaging modalities enabling synergistic assessment of the presence, the extent, and the severity of coronary atherosclerotic disease along with the hemodynamic significance of lesions and/or with evaluation of the myocardial function. A combination of coronary computed tomography angiography with myocardial perfusion imaging, such as single-photon emission computed tomography and positron emission tomography, has been adopted in several centers and implemented in international coronary artery disease management guidelines. Interest has increased in novel hybrid methods including coronary computed tomography angiography-derived fractional flow reserve and computed tomography perfusion and these techniques hold promise for the imminent diagnostic and management approaches of patients with coronary artery disease. In this review, we discuss the currently available hybrid noninvasive imaging modalities used in clinical practice, research approaches, and exciting potential future technological developments. 相似文献