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ESTUDIOS


01 enero 2014

CATHETERIZATION AND CARDIOVASCULAR INTERVENTIONS. A lumen sizing workhorse guidewire for peripheral vasculature: Two functions in one device

Mark C. Svendsen PhD1, Jenny S. Choy MD1, Adrian Ebner MD2, Brian Bigelow MD3, Anjan Sinha MD4, Issam Moussa MD5, A. George Akingba MD6, Bill Combs MS1, Ghassan S. Kassab PhD1,6,7,

Objectives: Ideally, guidewires used during peripheral vasculature (PV) interventions could serve both as a therapy delivery platform and a diagnostic tool for real-time vessel sizing (2-in-1 function).

01 enero 2014

CATHETERIZATION AND CARDIOVASCULAR INTERVENTIONS. Learning curve for intracranial angioplasty and stenting in single center

Qiankun Cai MD1,†, Yongkun Li MD2,3, Gelin Xu MD1,2, Wen Sun MD1, Yunyun Xiong MD2, Wenshan Sun MD2, Yuanfei Bao MD2, Xianjun Huang MD4, Yao Zhang MD2, Lulu Zhou MD1, Wusheng Zhu MD2, Xinfeng Liu MD1,2,*

Objective: To identify the specific caseload to overcome learning curve effect based on data from consecutive patients treated with Intracranial Angioplasty and Stenting (IAS) in our center.

01 enero 2014

CATHETERIZATION AND CARDIOVASCULAR INTERVENTIONS. Transcatheter treatment of iatrogenic brachiocephalic-jugular arteriovenous fistula and aortopulmonary artery fistula: A case report

Krit Makonkawkeyoon MD1,*, Tasaluck Thonghong MD2, Surin Woragidpoonpol MD3, Suphot Srimahachota MD4, Pornthep Lertsapcharoen MD5

Iatrogenic arteriovenous fistula is not a common complication of central venous catheterization. Duct occluder devices have been developed for patent ductus arteriosus occlusions but they may be used for arteriovenous fistula closures. We report a case of iatrogenic brachiocephalic-jugular and aortopulmonary artery fistulas after central venous catheter insertion. The fistulas were successfully managed with duct occluder devices. Due to increasing number of central venous catheterizations, physicians should be aware of this uncommon complication. Transcatheter closing of brachiocephalic-jugular and aortopulmonary artery fistulas by duct occluder devices seems to be a safe and feasible form of treatment. © 2013 Wiley Periodicals, Inc.

01 enero 2014

CATHETERIZATION AND CARDIOVASCULAR INTERVENTIONS. Exercise right heart catheterization for inferior vena cava obstruction: Confirming the hemodynamic significance of an anatomic lesion

Mackram F. Eleid MD1,*, Haraldur Bjarnason MD2, Robert L. Frye MD1, Rick A. Nishimura MD1

Retroperitoneal fibrosis is a rare condition characterized by the presence of inflammatory and fibrous retroperitoneal tissue that surrounds and often encases abdominal structures. In this report we describe an unusual presentation of retroperitoneal fibrosis and inferior vena cava (IVC) obstruction that was unidentified by noninvasive testing and ultimately diagnosed using exercise right heart catheterization and venography. Exercise hemodynamic catheterization revealed a high pressure gradient across the IVC obstruction during exercise that resulted in reduced preload and inappropriately low cardiac output reserve. The patient ultimately underwent angioplasty and stenting of the obstruction resulting in resolution of his symptoms. © 2013 Wiley Periodicals, Inc.

03 diciembre 2013

CIRCULATION: CARDIOVASCULAR INTERVENTIONS. Peripheral Artery Disease. Preoperative Statins and Limb Salvage After Lower Extremity Revascularization in the Medicare Population

Todd R. Vogel, MD, MPH, Viktor Y. Dombrovskiy, MD, PhD, MPH, Edgar Luis Galiñanes, MD and Robin L. Kruse, PhD

Background: Statins stabilize atherosclerotic plaque, decrease mortality after surgical procedures, and are linked to anti-inflammatory effects. The objective of this study was to evaluate preoperative administration of statins and longitudinal limb salvage after lower extremity endovascular revascularization and lower extremity open surgery.

29 enero 2013

CIRCULATION: CARDIOVASCULAR INTERVENTIONS. Peripheral Artery Disease. Endovascular Treatment for Infrainguinal Vessels in Patients With Critical Limb Ischemia

Osamu Iida, MD, Masato Nakamura, MD, PhD, Yasutaka Yamauchi, MD, Daizo Kawasaki, MD, Yoshiaki Yokoi, MD, PhD, FSCAI, FJCC, Hiroyoshi Yokoi, MD, Yoshimistu Soga, MD, Kan Zen, MD, PhD, Keisuke Hirano, MD, Nobuhiro Suematsu, MD, PhD, Naoto Inoue, MD, Kenji Suzuki, MD, Yoshiaki Shintani, MD, Yusuke Miyashita, MD, PhD, Kazushi Urasawa, MD, Ikuro Kitano, MD, Terutoshi Yamaoka, MD, Takashi Murakami, MD, Michitaka Uesugi, MD, Taketsugu Tsuchiya, MD, PhD, Toshiro Shinke, MD, PhD, Yasuhiro Oba, MD, Norihiko Ohura, MD, Toshimitsu Hamasaki, MSc, PhD, Shinsuke Nanto, MD, PhD and on behalf of the OLIVE Investigators

Background: Recent technical advances have made endovascular treatment (EVT) an alternative first-line treatment for critical limb ischemia.

01 febrero 2014

CIRCULATION: CARDIOVASCULAR INTERVENTIONS. Effective Vascular Therapeutics for Critical Limb Ischemia

Alan T. Hirsch, MD and Sue Duval, PhD

Peripheral artery disease (PAD) is one of the most common cardiovascular diseases and is associated with high short-term morbidity and mortality.1,2 It is the primary cause of lower extremity amputation throughout the world and is a powerful marker of advanced systemic atherosclerosis. Chronic critical limb ischemia (CLI) represents the most advanced clinical manifestation of PAD and is defined by the presence of ischemic rest pain, nonhealing wounds, or tissue loss (gangrene). CLI does not represent a single pathophysiologic process (ie, progressive leg arterial atherosclerosis), but is caused by multiple pathogenetic mechanisms, including native artery atherosclerosis, cardioembolic events, inflammatory arteritides (eg, thromboangiitis obliterans), hypercoagulable states, or leg bypass graft failure.

18 febrero 2014

CIRCULATION: CARDIOVASCULAR SURGERY. Aortic Pathology Determines Midterm Outcome After Endovascular Repair of the Thoracic Aorta

Benjamin Patterson, BSc, MRCS; Peter Holt, PhD, FRCS; Chrisoph Nienaber, MD; Richard Cambria, MD; Ronald Fairman, MD; Matt Thompson, MD, FRCS

Background: Endovascular repair of the thoracic aorta has become an increasingly utilized therapy. Although the short-term mortality advantage over open surgery is well documented, late mortality and the impact of presenting pathology on long-term outcomes remain poorly reported.

01 enero 2014

EUROPEAN JOURNAL OF VASCULAR AND ENDOVASCULAR SURGERY. What is the Best Option for Elective Repair of an Abdominal Aortic Aneurysm in a Young Fit Patient?

R.M. Sandford , E. Choke , M.J. Bown , R.D. Sayers

Objective: The lower procedural risk associated with endovascular aneurysm repair (EVAR) compared with open aneurysm repair (OAR) is well known. Younger patients are likely to represent a group at low perioperative risk. The long-term durability and late complications following EVAR may have more significance when considering the optimal treatment for young patients with a longer life expectancy. This study examined perioperative and long-term outcomes of young patients undergoing aneurysm repair by either open surgical or endovascular means.

01 enero 2014

EUROPEAN JOURNAL OF VASCULAR AND ENDOVASCULAR SURGERY. Variation in Maximum Diameter Measurements of Descending Thoracic Aortic Aneurysms Using Unformatted Planes versus Images Corrected to Aortic Centerline

N. Rudarakanchana , C.D. Bicknell , N.J. Cheshire , N. Burfitt , A. Chapman , M. Hamady , J.T. Powell

Objective: Evaluation of variation in descending thoracic aortic aneurysm (dTAA) diameters measured on CT scans in different planes and by different observers and the potential impact on treatment decisions.

01 enero 2014

EUROPEAN JOURNAL OF VASCULAR AND ENDOVASCULAR SURGERY. Prevention of Type II Endoleak Using the AMPLATZER Vascular Plug Before Endovascular Aneurysm Repair

M. Burbelko , M. Kalinowski , J.T. Heverhagen , E. Piechowiak , A. Kiessling , J. Figiel , Z. Swaid , J. Geks , W. Hundt

Objective: We evaluated the feasibility of visceral artery and lumbar artery (LA) embolization using AMPLATZER vascular plug (AVP) types 4 and 2 (AVP4, AVP2) prior to endovascular aneurysm repair (EVAR) to prevent the development of a type II endoleak.

01 enero 2014

EUROPEAN JOURNAL OF VASCULAR AND ENDOVASCULAR SURGERY. Five-year Outcomes in Men Screened for Abdominal Aortic Aneurysm at 65 Years of Age: A Population-based Cohort Study

S. Svensjö , M. Björck , A. Wanhainen

Objective: Acquiring contemporary data on prevalence and natural history of abdominal aortic aneurysms (AAA) is essential in the effort to optimise modern screening programmes. The primary aim of this study was to determine the fate of a 65-year-old male population 5 years following an invitation to an aortic ultrasound (US) examination.

01 enero 2014

EUROPEAN JOURNAL OF VASCULAR AND ENDOVASCULAR SURGERY. Good Clinical Outcome After Accidental Intra-arterial Injection of Flunitrazepam Tablets in 16 Drug Abusers with Critical Limb Ischaemia

S. Rohm , H. Staab , H. Schulz , O. Richter , G. Aust

Objectives: Inadvertent intra-arterial injection of flunitrazepam tablets intended for intravenous use by drug abusers has devastating effects. We report here on the clinical outcome of 16 drug abusers developing critical limb ischaemia after flunitrazepam injection.

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