Publications by authors named "Karel Roztocil"

Importance: Prior studies have observed an association between the burden of atherosclerotic vascular disease and the risk of venous thromboembolism (VTE). The association is not well described in peripheral artery disease (PAD) after lower extremity revascularization (LER).

Objective: To describe the risk of, factors associated with, and outcomes after VTE, as well as the association of low-dose rivaroxaban plus antiplatelet therapy with VTE after LER.

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Background: All diagnostic procedures of peripheral arterial disease (PAD) in diabetic foot (DF) are complicated due to diabetes mellitus and its late complications.The aim of our study is to enhance diagnosis of PAD using a novel transcutaneous oximetry (TcPO2) stimulation test.

Methods: The study comprised patients with mild-to-moderate PAD(WIfI-I 1 or 2) and baseline TcPO2 values of 30-50 mmHg.

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Chronic venous disease and diabetes mellitus are highly prevalent and debilitating conditions affecting millions of individuals globally. Although these conditions are typically considered as separate entities, they often co-exist which may be important in both understanding their pathophysiology and determining the best treatment strategy. Diabetes mellitus is twice as common in patients with chronic venous disease compared with the general population.

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Background: 31P-MR spectroscopy is a technique for undertaking a comprehensive evaluation of muscle metabolism. The goal of this study was to compare patients with mild and severe lower limb ischemia measured by 31P-MR spectroscopy at rest and during exercise.

Methods: Sixteen non-diabetic mild peripheral arterial occlusive disease (PAOD) patients, 23 diabetic PAOD patients with severe ischemia and 19 healthy controls were examined by rest and dynamic 31P-MR spectroscopy with a 3T MR system equipped with an MR-compatible home-made pedal ergometer.

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Regarding the clinical diagnosis of Raynaud's phenomenon and its associated conditions, investigations and treatment are substantial, and yet no international consensus has been published regarding the medical management of patients presenting with this condition. Most knowledge on this topic derives from epidemiological surveys and observational studies; few randomized studies are available, almost all relating to drug treatment, and thus these guidelines were developed as an expert consensus document to aid in the diagnosis and management of Raynaud's phenomenon. This consensus document starts with a clarification about the definition and terminology of Raynaud's phenomenon and covers the differential and aetiological diagnoses as well as the symptomatic treatment.

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Venous and arterial disease probably share a number of common risk factors. From the pathophysiological point of view a similar triggering mechanism was proposed for atherosclerosis and venous disease: subclinical inflammation. Life-threatening thrombotic events may also go through similar pathways in both entities and the culprit is probably dysfunctional endothelial cell in the vessel wall.

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Objectives: It has been demonstrated that the deleterious effect of smoking on the cardiovascular system is mediated through a decrease in protective HDL cholesterol. In addition, women are more sensitive to the negative effects of smoking, although the exact mechanism underlying this phenomenon is currently unknown. In this study, we evaluated whether smoking habits could modify the association of HDL cholesterol and apolipoprotein A1 (ApoA1) with reverse cholesterol transport (RCT), as measured by cholesterol efflux (CHE), in middle-aged women.

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