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ESTUDIOS


01 octubre 2014

JOURNAL OF VASCULAR AND INTERVENTIONAL RADIOLOGY. Contemporary Systematic Review and Meta-Analysis of Early Outcomes with Percutaneous Treatment for Infrapopliteal Atherosclerotic Disease

Mahmood K. Razavi, MD , Jihad A. Mustapha, MD , Larry E. Miller, PhD

The need for specialty devices to improve the technical outcome of endovascular interventions is dependent on the rate of early failure in such procedures. This meta-analysis assessed procedural outcomes of such interventions to elucidate the rate of early procedural failures and the need for such specialty devices.

30 julio 2013

CIRCULATION: CARDIOVASCULAR INTERVENTIONS. Peripheral Artery Disease. Stent Revascularization Restores Cortical Blood Flow and Reverses Tissue Hypoxia in Atherosclerotic Renal Artery Stenosis but Fails to Reverse Inflammatory Pathways or Glomerular Filtration Rate

Ahmed Saad, MD, Sandra M.S. Herrmann, MD, John Crane, BS, James F. Glockner, MD, PhD, Michael A. Mckusick, MD, Sanjay Misra, MD, Alfonso Eirin, MD, Behzad Ebrahimi, PhD, Lilach O. Lerman, MD, PhD and Stephen C. Textor, MD

Background: Atherosclerotic renal artery stenosis (ARAS) is known to reduce renal blood flow, glomerular filtration rate (GFR) and amplify kidney hypoxia, but the relationships between these factors and tubulointerstitial injury in the poststenotic kidney are poorly understood. The purpose of this study was to examine the effect of renal revascularization in ARAS on renal tissue hypoxia and renal injury.

23 julio 2013

CIRCULATION: CARDIOVASCULAR INTERVENTIONS. Peripheral Artery Disease. Controlled Reperfusion Versus Conventional Treatment of the Acutely Ischemic Limb

Claudia Heilmann, MD, Claudia Schmoor, PhD, Matthias Siepe, MD, Christian Schlensak, MD, Andreas Hoh, MD, Gustav Fraedrich, MD and Friedhelm Beyersdorf, MD

Background: Amputation rates and mortality in patients with severe acute limb ischemia remain high. The protective effect of controlled reperfusion (CR) on tissue damage because of local and systemic reperfusion injury is unclear.

16 julio 2013

CIRCULATION: CARDIOVASCULAR INTERVENTIONS. Myocardial Infarction. Bypassing the Emergency Department and Time to Reperfusion in Patients With Prehospital ST-Segment–Elevation

Akshay Bagai, MD, MHS, Hussein R. Al-Khalidi, PhD, Daniel Muñoz, MD, MPA, Lisa Monk, RN, MSN, Mayme L. Roettig, RN, MSN, Claire C. Corbett, MMS, NREMT-P, J. Lee Garvey, MD, B. Hadley Wilson, MD, Christopher B. Granger, MD and James G. Jollis, MD

Background: Among patients identified prehospital with ST-segment–elevation myocardial infarction, emergency medical service transport from the field directly to the catheterization laboratory, thereby bypassing the emergency department (ED), may shorten time to reperfusion.

15 septiembre 2014

THE AMERICAN JOURNAL OF CARDIOLOGY. Family History as a Risk Factor for Peripheral Arterial Disease

Mahyar Khaleghi, MD, Iyad N. Isseh, MBBS, Kent R. Bailey, PhD, Iftikhar J. Kullo, MD

The association of a family history of peripheral arterial disease (PAD) with the presence of PAD is largely unknown. We conducted a case-control study of 2,296 patients with PAD (69 ± 10 years, 64% men) and 4,390 controls (66 ± 11 years, 62% men) identified from noninvasive vascular and stress testing laboratories at Mayo Clinic, Rochester, Minnesota, from October 2006 through June 2012. PAD was defined as an ankle brachial index of ≤0.9 at rest and/or after exercise, a history of lower extremity revascularization, or having poorly compressible leg arteries. Controls were patients with normal ankle brachial index or without a history of PAD. Family history of PAD was defined as having at least 1 first-degree relative who had undergone revascularization or stent placement for PAD before the age of 65 years. Logistic regression analyses were used to evaluate whether a family history of PAD was associated with the presence of PAD, independent of conventional risk factors. A family history of PAD was present more often in patients with PAD than in controls, with a resulting odds ratio (OR) of 2.20 (95% confidence interval [CI] 1.82 to 2.67). The association remained significant after adjustment for conventional risk factors (OR 1.97, 95% CI 1.60 to 2.42). The association was stronger in younger subjects (age <68 years; adjusted OR 2.46, 95% CI 1.79 to 3.38) than in older subjects (adjusted OR 1.61, 95% CI 1.22 to 2.12). A greater number of affected relatives with PAD was also associated with greater odds of presence of PAD (adjusted OR 1.86, 95% CI 1.48 to 2.33 and adjusted OR 2.56, 95% CI 1.60 to 4.11 for patients with 1 and ≥2 affected relatives with PAD, respectively). In conclusion, individuals with a family history of PAD have nearly double the odds of having PAD relative to those without such a history.

17 julio 2013

EUROPEAN HEART JOURNAL. Recent trends in morbidity and in-hospital outcomes of in-patients with peripheral arterial disease: a nationwide population-based analysis

Nasser Malyar*, Torsten Fürstenberg, Jürgen Wellmann, Matthias Meyborg, Florian Lüders, Katrin Gebauer, Holger Bunzemeier, Norbert Roeder and Holger Reinecke

Aims: The prevalence of peripheral arterial disease (PAD) and especially of critical limb ischaemia (CLI) is announced to rise dramatically worldwide, with a considerable impact on the health care and socio-economic systems. We aimed to characterize the recent trends in morbidity and in-hospital outcome of PAD among all hospitalized patients in the entire German population between 2005 and 2009.

01 agosto 2014

JACC: CARDIOVASCULAR INTERVENTIONS. Lower Extremity Revascularization Using Directional Atherectomy

James F. McKinsey, MD∗; Thomas Zeller, MD†; Krishna J. Rocha-Singh, MD‡; Michael R. Jaff, DO§; Lawrence A. Garcia, MD‖

Objectives: The aim of this study was to assess the safety and effectiveness of directional atherectomy (DA) for endovascular treatment of peripheral arterial disease (PAD) in infrainguinal arteries in patients with claudication or critical limb ischemia.

01 agosto 2014

JACC: CARDIOVASCULAR INTERVENTIONS. Drug Delivering Technology for Endovascular Management of Infrainguinal Peripheral Artery Disease

Karan Sarode, MA∗; David A. Spelber, BA‡; Deepak L. Bhatt, MD, MPH§; Atif Mohammad, MD∗; Anand Prasad, MD‡; Emmanouil S. Brilakis, MD, PhD∗; Subhash Banerjee, MD∗

Endovascular intervention has become a well-recognized treatment modality for peripheral artery disease; however, mid- and long-term outcomes have been plagued by limited durability. Plain balloon angioplasty and bare-metal stents have historically suffered from high restenosis rates leading to the need for frequent repeat revascularization procedures. The innovation of locally administered, drug-delivering balloons and stents has been a direct result of technological innovations directed toward prevention and treatment of this limitation. Over the last 5 years, numerous clinical trials investigating the use of drug-coated stents and drug-coated balloons indicate a significant improvement in endovascular treatment durability and outcomes. This review provides an up-to-date assessment of the current evidence for the use of drug-coated stents and drug-coated balloons in the treatment of femoropopliteal and infrapopliteal peripheral artery disease. Additionally, it provides an overview of the development of this technology, highlights landmark ongoing and completed clinical trials, examines evidence to support the use of drug-coated technologies in combination with other modalities, and examines promising new technological developments. Last, it summarizes the challenges and safety concerns that have delayed U.S. Food and Drug Administration approval of these devices.

11 julio 2014

CIRCULATION. Vascular Medicine. Vitamin D Promotes Vascular Regeneration

Michael Sze Ka Wong, PhD; Matthias S. Leisegang, PhD; Christoph Kruse, MSc; Juri Vogel, MSc; Christoph Schürmann, PhD; Nathalie Dehne, PhD; Andreas Weigert, PhD; Eva Herrmann, PhD; Bernhard Brüne, PhD; Ajay M. Shah, MD, PhD; Dieter Steinhilber, PhD; Stefan Offermanns, MD; Geert Carmeliet, MD, PhD; Klaus Badenhoop, MD; Katrin Schröder, PhD*; Ralf P. Brandes, MD*

Background: Vitamin D deficiency in humans is frequent and has been associated with inflammation. The role of the active hormone 1,25-dihydroxycholecalciferol (1,25-dihydroxy-vitamin D3; 1,25-VitD3) in the cardiovascular system is controversial. High doses induce vascular calcification; vitamin D3 deficiency, however, has been linked to cardiovascular disease because the hormone has anti-inflammatory properties. We therefore hypothesized that 1,25-VitD3 promotes regeneration after vascular injury.

30 septiembre 2014

CIRCULATION. Surgery for Aortic Disease. Outcomes of Patients Presenting With Acute Type A Aortic Dissection in the Setting of Prior Cardiac Surgery

Nicholas R. Teman, MD; Mark D. Peterson, MD; Mark J. Russo, MD; Marek P. Ehrlich, MD; Truls Myrmel, MD; Gilbert R. Upchurch Jr, MD; Kevin Greason, MD; Mark Fillinger, MD; Alberto Forteza, MD; George Michael Deeb, MD; Daniel G. Montgomery, MS; Kim A. Eagle, MD; Eric M. Isselbacher, MD; Christoph A. Nienaber, MD; Himanshu J. Patel, MD

Background: Prior cardiac surgery (PCS) can complicate the presentation and management of patients with type A acute aortic dissection (TAAAD). This report from the International Registry of Acute Aortic Dissection examines this hypothesis.

12 julio 2013

CIRCULATION. Vascular Medicine. Stratified Meta-Analysis of Intermittent Pneumatic Compression of the Lower Limbs to Prevent Venous Thromboembolism in Hospitalized Patients

Kwok M. Ho, MPH, PhD, FRCP; Jen Aik Tan, MBBS

Background: Optimal thromboprophylaxis for patients at risk of bleeding remains uncertain. This meta-analysis assessed whether intermittent pneumatic compression (IPC) of the lower limbs was effective in reducing venous thromboembolism and whether combining pharmacological thromboprophylaxis with IPC would enhance its effectiveness.

01 julio 2013

CIRCULATION. Interventional Cardiology. Direct Quantitative Assessment of the Peripheral Artery Collateral Circulation in Patients Undergoing Angiography

Tobias Traupe, MD; Jana Ortmann, MD; Michael Stoller, MD; Iris Baumgartner, MD; Stefano F. de Marchi, MD; Christian Seiler, MD

Background: Despite the fact that numerous studies have pursued the strategy of improving collateral function in patients with peripheral artery disease, there is currently no method available to quantify collateral arterial function of the lower limb.

30 septiembre 2014

CIRCULATION. Peripheral Artery Disease. Management of Patients After Endovascular Interventions for Peripheral Artery Disease

Piotr Sobieszczyk, MD; Andrew Eisenhauer, MD

Introduction: Endovascular therapy to relieve intermittent claudication or critical limb ischemia in patients with lower-extremity peripheral artery disease is now firmly established as an alternative to surgical revascularization.1 The advent of novel technologies allows percutaneous interventions of increasingly complex arterial disease previously reserved for surgical interventions.2 Although the durability of aortoiliac interventions rivals that of surgical bypass, restenosis after femoropopliteal interventions remains the Achilles’ heel of endovascular therapies.

24 junio 2013

CIRCULATION. Interventional Cardiology. Drug-Eluting Balloon in Peripheral Intervention for Below the Knee Angioplasty Evaluation (DEBATE-BTK)

Francesco Liistro, MD; Italo Porto, MD PhD; Paolo Angioli, MD; Simone Grotti, MD; Lucia Ricci, MD; Kenneth Ducci, MD; Giovanni Falsini, MD; Giorgio Ventoruzzo, MD; Filippo Turini, MD; Guido Bellandi, MD; Leonardo Bolognese, MD

Background: The 1-year restenosis rate after balloon angioplasty of long lesions in below-the-knee arteries may be as high as 70%. Our aim was to investigate the efficacy of a paclitaxel drug-eluting balloons versus conventional percutaneous transluminal angioplasty (PTA) for the reduction of restenosis in diabetic patients with critical limb ischemia undergoing endovascular intervention of below-the-knee arteries.

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