Search results for " vascular diseases"
showing 10 items of 46 documents
Sensory neuropathy and signs of central sensitization in patients with peripheral arterial disease.
2006
Patients with peripheral arterial disease (PAD) may develop a broad range of peripheral nerve dysfunctions including pain and sensory deficiencies due to chronic ischemia mostly involving the lower limbs. To investigate the degree of sensory abnormalities in such patients quantitative sensory testing (QST) might be a useful tool. Forty-five patients and 20 controls were enrolled in the present study and underwent QST according to the protocol of the German Research Network on Neuropathic Pain. PAD was graded according to the Rutherford classification. PAD patients were divided into two groups: 16 patients with critical limb ischemia (severe PAD) and 29 patients with intermittent claudicatio…
Effects of prostaglandin E1 and buflomedil on left ventricular function in patients with severe chronic occlusive arterial disease: a prospective, ra…
1999
In this study, the effect of a course of prostaglandin E ( 1 ) (60 microg/d intravenously [i.v.]) or buflomedil (150 mg/d i.v.) treatment on parameters of left ventricular systolic function was investigated by echocardiography in patients of comparatively advanced age with severe peripheral occlusive arterial disease (Fontaine's stage III or IV). The study population was 20 patients, 12 men and 8 women, between 51 and 85 years of age (average age, 73. 7 years), with multiple coexisting medical conditions. These patients were no longer suitable candidates for other forms of interventional or surgical treatment. The patients were treated with prostaglandin E ( 1 ) or buflomedil in the dosages…
Contemporary results with the biosynthetic glutaraldehyde denatured ovine collagen graft (Omniflow II) in femoropopliteal position
2020
Abstract Objective The objective of this study was to analyze the outcome of a contemporary series of femoropopliteal bypass operations with the glutaraldehyde denatured polyester mesh-reinforced ovine collagen prosthesis (OCP; Omniflow II [LeMaitre Vascular, Inc, Burlington, Mass]). The experience of two tertiary centers regarding long-term graft function, secondary reinterventions, and biodegeneration of the OCP prosthesis is presented. Methods Between January 2006 and January 2014, a series of 205 consecutive operations with the OCP in the femoropopliteal position (54 above knee and 151 below knee) were performed in 194 patients in 202 limbs for disabling claudication (72), chronic criti…
Limitations of Clinical History for Evaluation of Patients With Acute Chest Pain, Non-Diagnostic Electrocardiogram, and Normal Troponin
2007
Decision making and risk stratification for patients with acute chest pain, nondiagnostic electrocardiogram results, and normal troponin levels are challenging. The aim of this study was to optimize the clinical history for the evaluation of these patients. A total of 1,011 patients presenting to an emergency department were included. The following data were collected: clinical presentation (pain characteristics and number of pain episodes), coronary risk factors, previous ischemic heart disease, and extracardiac vascular disease (peripheral artery disease, stroke, or creatinine >1.4 mg/dl). Two different predictive models were calculated according to the end points: model 1 for 1-year majo…
Initial experience with a new method of external polyester scaffolding for infrainguinal vein grafts.
2009
Abstract Objectives This study aims to evaluate the feasibility of external polyester scaffolding in infrainguinal bypass grafting when available vein material is suboptimal due to varicosity or dilatation. Primary objectives were short-term primary patency, assisted primary patency and secondary patency. Secondary objectives were to assess the rate of graft stenoses, infections and other adverse effects related to the use of external scaffolding. Materials and methods A total of 50 consecutive patients were included in this prospective, multicentre, feasibility study from six centres. The indication for infrainguinal bypass was critical limb ischaemia (64%), severe claudication (34%) or po…
Association Between Chromosome 9p21 Variants and the Ankle-Brachial Index Identified by a Meta-Analysis of 21 Genome-Wide Association Studies
2012
Background— Genetic determinants of peripheral arterial disease (PAD) remain largely unknown. To identify genetic variants associated with the ankle-brachial index (ABI), a noninvasive measure of PAD, we conducted a meta-analysis of genome-wide association study data from 21 population-based cohorts. Methods and Results— Continuous ABI and PAD (ABI ≤0.9) phenotypes adjusted for age and sex were examined. Each study conducted genotyping and imputed data to the ≈2.5 million single nucleotide polymorphisms (SNPs) in HapMap. Linear and logistic regression models were used to test each SNP for association with ABI and PAD using additive genetic models. Study-specific data were combined using fi…
Women and peripheral arterial disease: same disease, different issues
2008
Objectives Atherosclerosis is a multifactorial disease and, thus, its clinical manifestations are likely to present gender-specific differences with respect to their development, course, symptom complexes and prognosis. The present study aimed to examine sex differences in peripheral arterial disease (PAD) and its clinical correlates. Methods PAD severity, quality of life (assessed by ST-22), cardiovascular risk factors, inflammatory profile and comorbidity were assessed in 163 men and 68 women who were consecutively diagnosed with PAD at three Italian University vascular centres. Results Compared to men, women showed a higher prevalence of critical limb ischemia (P = 0.018), but had a less…
Left atrial thrombi despite anticoagulant and antiplatelet therapy
1994
To investigate risk factors for embolization in patients with echocardiographically detected left atrial thrombi and to evaluate thrombus development, we examined 29 patients with transesophageal and transthoracic echocardiography at two points during a follow-up of 18 months. We compared patients with a history of possible arterial embolization (n = 13) with those without (n = 16) in regard to age, gender, left atrial dilatation, localization of the thrombus in the left atrial cavity, spontaneous echo contrast, and atrial fibrillation. Eight patients were treated with aspirin, 20 with phenprocoumon. Only left atrial spontaneous contrast was associated with thromboembolism (10/15 patients w…
Atherogenic lipoprotein phenotype and LDL size and subclasses in patients with peripheral arterial disease
2006
The type of dyslipidemia in patients with peripheral arterial disease (PAD) is still ill defined. PAD patients often show elevated triglycerides and reduced HDL-cholesterol, two lipid abnormalities usually accompanied by decreased LDL size in the "atherogenic lipoprotein phenotype" (ALP). We investigated (1) whether PAD patients have lower LDL size, (2) altered LDL subclass distribution and (3) the prevalence of ALP. We measured plasma lipids and LDL size and subclasses by gradient gel electrophoresis in 31 adults with intermittent claudication and 31 age-BMI-matched controls. Patients had higher prevalence of hypertension (p = .0132), smoking (p < .0020) and diabetes (p = .0024), with lowe…
Different calculations of ankle-brachial index and their impact on cardiovascular risk prediction.
2008
Background— An ankle-brachial index (ABI; ratio of ankle and brachial systolic blood pressure) <0.9 indicates peripheral arterial disease (PAD) and is a strong predictor of cardiovascular events. The aim of the present study was to address the prognostic value of different methods of ABI calculation. Methods and Results— In 831 patients admitted with chest pain for diagnostic heart catheterization, blood pressure of both anterior and posterior tibial arteries was measured. ABI was calculated for each leg with the higher of the 2 ankle pressures (current definition of the American Heart Association) or with the lower of the 2 ankle pressures (modified definition) in relation to the highe…