180,709 research outputs found
Correction to: Nutraceutical approach for the management of cardiovascular risk - a combination containing the probiotic Bifidobacterium longum BB536 and red yeast rice extract: results from a randomized, double-blind, placebocontrolled study (Nutrition Journal (2019) 18 (13) DOI: 10.1186/s12937-019-0438-2)
No full textFollowing publication of the original article[1], the authors reported an error in the affiliation of the third author, Sara Gandini. The correct affiliation should read: Division of Epidemiology and Biostatistics, IEO, European Institute of Oncology IRCCS, Milan, Italy
Intraplug coils delivery for fast closure of giant arteriovenous fistulas (AVFs) aneurysm in dialyzed patient
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Six-Month Angiographic and Clinical Outcomes of Therapeutic Ultrasound Pretreatment Associated With Plain Balloon Angioplasty for Below-the-Knee Lesions in Patients With Critical Limb Ischemia: A Prospective, Single-Center Pilot Study
No full textPurpose: To evaluate the safety and efficacy of low-frequency, high-intensity ultrasound energy delivered via a new dedicated ultrasound catheter followed by conventional balloon angioplasty to treat calcified infrapopliteal lesions. Materials and Methods: A prospective, nonrandomized, single-center pilot study enrolled 12 patients (mean age 72.2 +/- 5.3 years; 8 men) with critical limb ischemia (9 Rutherford category 5 and 3 category 6) between January and November 2017. Of the 19 target lesions, 11 had severe calcification. Patients were treated with the Kapani ultrasound system before conventional balloon dilation. Primary safety endpoints included 30-day death, major target limb amputation, and target vessel acute occlusion. The main efficacy outcome was primary patency at 6 months, defined as freedom from both clinically-driven target lesion revascularization (TLR) and angiographically-defined restenosis (>50% lumen reduction). Results: Technical success (<30% residual stenosis) was achieved in all lesions without complications or stent implantation. Ultrasound energy was delivered over a mean 185.2 +/- 67.3 seconds followed by low-pressure dilation (mean 6.1 +/- 1.9 atm). Angiography confirmed primary patency at 6 months in 18 (95%) of 19 lesions. No death, TLR, or amputation was reported in follow-up. Complete ulcer healing was observed in all 12 patients at 6 months. Conclusion: This pilot trial with a small number of patients suggests that low-frequency, high-intensity ultrasound energy delivery followed by plain balloon angioplasty is a safe approach to treat infrapopliteal atherosclerotic lesions. Angiographically-documented results at 6 months indicate a potential for this combined therapy in the treatment of CLI patients with calcified BTK lesions. Further studies on a larger randomized cohort are needed to confirm these positive clinical outcomes
Subintimal Crossing of Chronic Total Occlusions in Peripheral Arteries With a Dual Guidewire Balloon Catheter: The PRAESTO Study
No full textpurpose: the purpose of this study was to evaluate the safety and efficacy of antegrade fenestration re-entry (AFR) using a dual guidewire angioplasty balloon for chronic total occlusion (CTO) in patients with peripheral artery disease (PAD). material and methods: this is a retrospective score matching analysis study comparing a study cohort composed of PAD patients with CTO treated with AFR subintimal recanalization using a dual guidewire angioplasty balloon and a matched control group, selected on baseline cardiovascular risk factor and lesions characteristics, treated with a conventional subintimal recanalization. procedure outcomes include procedural success, successful subintimal re-entry, need for distal puncture, procedural time, fluoroscopy time, and dose area product. clinical variables, including primary patency, freedom from amputation, freedom from re-interventions, and freedom from death, were used to compare the study groups. results: thirty patients in the study group were compared with 60 patients in the matched control group (mean age, male). a significant higher subintimal re-entry success (100% vs 76.7% in control group, p=0.004) and lower need of distal tibial punction (0 vs 14 [23.3%] patients in control group, p=0.004) were observed in the study group. a surgical conversion to bypass was needed in 5 patients in the control group. shorter procedural and fluoroscopy time were observed in the study group (41.1 +/- 10.8 minutes vs 146.6 +/- 62. and 16.7 +/- 3.5 minutes vs 34.3 +/- 14.2 minutes in control group respectively, p<0.001 and p<0.001). Lower DAP were observed in the study group (914.1 +/- 309.9 mu Gym(2) vs 2026.5 +/- 845.7 mu Gym(2) in control group p<0.001). no significant difference were observed in terms of primary patency, mortality, amputation, and freedom from re-intervention. conclusion: AFR using the presto dual guidewire balloon is a step forward for crossing CTO which allows a simplified and quick treatment of BTK and ATK lesions compared with conventional approaches without increase of procedural risk and maintaining good clinical outcomes
Appropriate Similarity Measures for Author Cocitation Analysis
No full textWe provide a number of new insights into the methodological discussion about author cocitation analysis. We first argue that the use of the Pearson correlation for measuring the similarity between authors’ cocitation profiles is not very satisfactory. We then discuss what kind of similarity measures may be used as an alternative to the Pearson correlation. We consider three similarity measures in particular. One is the well-known cosine. The other two similarity measures have not been used before in the bibliometric literature. Finally, we show by means of an example that our findings have a high practical relevance.information science;Pearson correlation;cosine;similarity measure;author cocitation analysis
Foraging behaviour and habitat partitioning of two sympatric cormorants in Patagonia, Argentina
No full textFrere, E., Quintana, F., Gandini, P., Wilson, R. P. (2008). Foraging behaviour and habitat partitioning of two sympatric cormorants in Patagonia, Argentina. Ibis 150; 558-564
"Closing the R&D Gap, Evaluating the Sources of R&D Spending"
No full textBoth spending and tax policies have been implemented in the United States with the goal of stimulating private sector research and development (R&D). Karier questions whether current R&D policy, especially the research and experimentation tax credit, can contribute to closing the gap between nondefense expenditures on R&D in the United States and such expenditures in other countries, such as Japan and Germany. He also explores possible changes to our current R&D policy to make it more effective.
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