bluuebunny/crossref_metadata_2025_split huggingface dataset:
Intravascular ultrasound study of the effect of β‐emitting (55Co) stents on vascular remodeling and intimal proliferation
Authors: Červinka Pavel , Šťásek Josef , Costa Marco Aurelio , Štursa Josef , Fišer Miroslav , Vodňanský Petr , Kočišová Michaela , Veselka Josef , Pleskot Miloslav , Malý Jaroslav 
Published: November 2004

AbstractThe aim of this study was to evaluate vessel remodeling after implantation of high‐activity (mean, 41.1 ± 1.2 μCi) β‐emitting (55Co) stents. Proton bombarding in cyclotron has brought the radioactivity. Intravascular ultrasound (IVUS) investigation has been completed in 10 patients. The angiographies performed at 6 months revealed restenosis > 50% in five cases (50%). IVUS analysis demonstrated an absence of remodeling behind the stent, with no changes in total vessel volume (TVV; 353.6 ± 126.3 and 343.9 ± 90.6 mm3) or plaque + media volume (PMV; 171.7 ± 57.4 and 166.8 ± 42.6 mm3). On the other hand, lumen volume (LV) within the stent decreased significantly from 181.9 ± 80.2 to 154.6 ± 45.2 mm3 (P < 0.02). This was due to presence of neointimal hyperplasia (NIH) at both extremities of implanted stents. No chronic recoil of the implanted stents was found. The analysis of edges (5 mm distally and proximally to the last stent struts) showed no significant changes in TVV (187.3 ± 62.60 and 176.9 ± 53.5 mm3), but PMV increase significantly from 61.9 ± 31.2 to 82.2 ± 43.4 mm3 (P < 0.04) and LV decreased from 125.2 ± 40.7 to 94.7 ± 22.0 mm3 (P < 0.02). In conclusion, single 55Co radioactive β‐emitting stents with high initial activity are effective in reducing neointimal hyperplasia only within the stent body, as measured by IVUS, and they do not solve the problem of restenosis at the stent extremities as well as at the stent edges. Edge restenosis in this high radioactive stents was mainly (from 66%) due to neointimal proliferation. Catheter Cardiovasc Interv 2004;61:320–325. © 2004 Wiley‐Liss, Inc.
“Candy wrapper” effect after drug‐eluting stent implantation: Déjà vu or stumbling over the same stone again?
Authors: Angiolillo Dominick J. , Sabatá Manel , Alfonso Fernando , Macaya Carlos 
Published: November 2004

AbstractEncouraging results have been obtained with drug‐eluting stents (DESs) to prevent restenosis following PCI. However, DESs are not immune from restenosis and we describe a case of “candy wrapper” effect, commonly observed with intracoronary brachytherapy (IBT). In this article, we review the common drawbacks of DES and IBT and their prevention. Catheter Cardiovasc Interv 2004;61:387–391. © 2004 Wiley‐Liss, Inc.
Ventricular septal rupture following nonsurgical septal reduction for hypertrophic cardiomyopathy: Treatment with percutaneous closure
Authors: Aroney Constantine N. , Goh Tiow H. , Hourigan Lisa A. , Dyer William 
Published: November 2004

AbstractAn 82‐year‐old woman with severe symptomatic hypertrophic obstructive cardiomyopathy undergoes nonsurgical septal reduction, leading to immediate hemodynamic and functional improvement. Five weeks later, she presents with severe biventricular failure due to a large septal rupture with marked left‐to‐right shunting. The rupture is closed with an Amplatzer post‐MI ventricular septal defect occluding device. Residual shunting through the device and a small residual shunt at its superior rim lead to severe hemolysis, which resolves spontaneously after 10 days of supportive therapy. A further self‐limiting episode of hemolysis recurred 3 months later following a period of excessive anticoagulation. Catheter Cardiovasc Interv 2004;61:411–414. © 2004 Wiley‐Liss, Inc.
Effectiveness of right or left radial approach for coronary angiography
Authors: Kawashima Osamu , Endoh Norio , Terashima Masayoshi , Ito Yuko , Abe Sinnya , Ootomo Tatsushi , Ogata Kazunori , Honda Hidehiko , Takizawa Kaname , Miyazaki Yasusuke , Sugawara Daisuke , Komatsu Masayuki , Sawazi Yoichi , Ozaki Takeshi , Uchimuro Tomoya , Meguro Taiichiro , Isoyama Shogen 
Published: November 2004

AbstractThe transradial approach for catheterization is becoming increasingly more popular. At present, the choice of the right or left radial artery depends on the operator's preference. We examined how the laterality influenced the effectiveness of the approach. Employing Judkins‐type catheters, we performed coronary angiography in 232 patients with the left approach and in 205 patients with the right approach. Although access time did not differ between the two groups of patients, the duration of catheter manipulation was shorter in the left‐ than in the right‐approach group (11.7 ± 5.9 vs. 9.8 ± 4.4 min; P < 0.001). Because of the shorter duration of catheter manipulation, the total procedural duration was shorter in the left‐approach group (13.7 ± 6.4 vs. 11.4 ± 4.8 min; P < 0.001). The fluoroscopy time was shorter in the left‐ than in the right‐approach group (3.7 ± 2.5 vs. 5.0 ± 3.3 min; P < 0.001). The amount of contrast material did not differ between the groups (79 ± 27 vs. 83 ± 25 ml). The rate of guidewire usage to engage the coronary ostium was higher in the right‐ than in the left‐approach group because of the severe tortuosity of the right subclavian artery (20/205 vs. 0/232; P < 0.001). Thus, for operators with significant experience, the left radial approach may provide increased procedural efficacy for coronary angiography compared to the right radial approach. Catheter Cardiovasc Interv 2004;61:333–337. © 2004 Wiley‐Liss, Inc.
Transcatheter coil occlusion of residual shunt in a patient with recurrent cryptogenic stroke after PFO percutaneous closure
Authors: Donti Andrea , Giardini Alessandro , Formigari Roberto , Bronzetti Gabriele , Prandstraller Daniela , Bonvicini Marco , Picchio Fernando M. 
Published: November 2004

AbstractA significant association has been suggested between a residual shunt and the risk of cerebral ischemic recurrences after transcatheter patent foramen ovale (PFO) closure. We report the use of a detachable coil to treat a residual shunt in a patient who had a recurrent cerebral ischemic event after transcatheter closure of a PFO. Catheter Cardiovasc Interv 2004;61:415–417. © 2004 Wiley‐Liss, Inc.
A constricting band: An unusual cause of incomplete expansion of Amplatzer septal occluder device
Authors: Trehan Vijay , Mehta Vimal , Mukhopadhyay Saibal , Yusuf Jamal , Arora Ramesh , Kaul U.A. 
Published: November 2004

AbstractVarious problems and complications have been reported during transcatheter closure of ostium secundum atrial septal defect with Amplatzer septal occluder. We report an unusual problem that was responsible for incomplete expansion of the waist of the device, not yet reported in world literature. A polyester band in continuation with the polyester mesh was found constricting the waist of the device, which after being cut led to successful redeployment of the device. Catheter Cardiovasc Interv 2004;61:418–421. © 2004 Wiley‐Liss, Inc.
Angioplasty of an asymptomatic total occlusion of the left subclavian artery to provide access for coronary angiography and intervention: A case report
Authors: Yaneza Liberty O. , Sun Lao Lam , Bagsit Nestor Lino A. , Baysa Andres N. , Torres Richard Nicandro , Dy Timothy C. 
Published: November 2004

AbstractReports and follow‐up of angioplasty and stenting of asymptomatic totally occluded subclavian arteries are limited. We present a case of unstable angina and arterial occlusion of all four extremities treated with subclavian angioplasty and stenting with subsequent coronary angiography and percutaneous coronary intervention. Twelve‐month follow‐up is also provided. Catheter Cardiovasc Interv 2004;61:310–313. © 2004 Wiley‐Liss, Inc.
Paclitaxel prevented restenosis in a totally occluded small vessel with in‐stent restenosis: A 9‐month angiographic follow‐up
Authors: Aboufares Ali F. , Roubin Gary S. , Teirstein Paul S. 
Published: November 2004

AbstractWe present a case of a 57‐year‐old patient who underwent multiple percutaneous coronary interventions for a lesion at the graft anastomosis to his first obtuse marginal branch. After initial angiographic success with multiple treatment modalities (excluding intravascular brachytherapy because of prior mantle radiation), restenosis or reocclusion eventuated on each occasion. Two paclitaxel‐coated stents were implanted in this small vessel with diffuse in‐stent restenosis and recurrent total occlusion. Complete patency was documented on a 9‐month angiographic follow‐up. Catheter Cardiovasc Interv 2004;61:392–395. © 2004 Wiley‐Liss, Inc.
Reduced vascular complications after percutaneous coronary interventions with a nonmechanical suture device: Results from the randomized RACE study†
Authors: Sanborn Timothy A. , Ogilby J. David , Ritter James M. , Stone Gregg W. , Klugherz Bruce D. , Fields Ronald H. , White Christopher C. , Wilensky Robert L. 
Published: November 2004

AbstractThe objective of this study was to evaluate the safety and efficacy of a novel nonmechanical percutaneous suture device, X‐Press, after diagnostic catheterization and percutaneous coronary interventions (PCIs) in the setting of glycoprotein IIb/IIIa inhibitor usage. Current percutaneous vascular suture devices remain mechanically complex and expensive and have not been shown to reduce major vascular complications. Using a 2:1 randomization scheme (2:1 ratio, device vs. compression), 393 patients undergoing diagnostic catheterization (n = 133) or PCI (n = 260) were randomized in the prospective Rapid Ambulation After Closure (RACE) study and evaluated for time to ambulation, time to hemostasis, treatment success, and incidence of major vascular complications. Glycoprotein IIb/IIIa inhibitors were used in 52% of PCI patients. There was a significant reduction in the primary efficacy endpoint of median time to ambulation for device compared to control with both diagnostic (2.2 vs. 6.2 hr; P = 0.0001) and PCI patients (4.1 vs. 14.7 hr; P = 0.0001). Device malfunction occurred in 3.1% patients without clinical sequalae. Equivalence in the primary safety endpoint, the incidence of major complications (vascular repair, ultrasound‐guided compression, transfusion, or infection) at 14 days, was observed with the X‐Press device (1/261; 0.4%) compared to control (3/132; 2.3%; P = 0.11). In PCI patients, half of whom received glycoprotein IIb/IIIa inhibitors, there was a significant reduction in the incidence of vascular complications in patients using the device (0/172; 0%) compared to control (3/88; 3.4%; P = 0.037). In diagnostic catheterization and PCI, a novel nonmechanical suture device reduced the time to ambulation and demonstrated equivalence in major complications compared to conventional compression techniques. The incidence of major complications after PCI was reduced with the device. Catheter Cardiovasc Interv 2004;61:327–332. © 2004 Wiley‐Liss, Inc.
Carotid angioplasty under cerebral protection with the percusurge guardwire system
Authors: Henry Michel , Polydorou Antonios , Henry Isabelle , Polydorou Adamantia , Hugel Michel 
Published: November 2004

AbstractThe purpose of this study was to examine the possible beneficial effect of the PercuSurge GuardWire cerebral protection device based on balloon occlusion of the distal internal carotid artery and debris aspiration for patients undergoing carotid artery stenting (CAS). A total of 268 CAS procedures were attempted under cerebral protection using the PercuSurge GuardWire system in 242 patients (194 men; mean age, 71.2 ± 9.4 years; range, 40–91). The lesions were mainly atherosclerotic; 64% were symptomatic. Technical success was 99.3%. All lesions were stented except three postangioplasty restenoses. Prophylactic occlusion during balloon dilatation and stenting was well tolerated in 255 patients (95.9%). Microscopic analysis of the aspirated blood showed different types of particles numbering between 7 and 145 per procedure, with a mean diameter of 250 μm (mean, 56–2,652 μm). The 30‐day stroke and death rate was 2.3%, with four periprocedural complications at < 48 hr (one retinal embolism and three transient ischemic attacks), one intracerebral hemorrhage at 3 days, and one death of cardiac failure at 3 weeks. This technique appears safe and efficient with a low rate of periprocedural embolic events. Protection devices seem indispensable to perform CAS and expand the applicability of the procedure. Randomized studies (surgery vs. CAS with and without cerebral protection) are awaited. Catheter Cardiovasc Interv 2004;61:293–305. © 2004 Wiley‐Liss, Inc.
Multiple plaque morphologies in a single coronary artery: insights from volumetric intravascular ultrasound
Authors: Panse Neeta , Brett Sasseen , Panse Prasad , Kareti Kiran , Rewis DeAnna , Gilmore Paul , Zenni Martin M. , Wilke Norbert , Bass Theodore , Costa Marco A. 
Published: November 2004

AbstractIntravascular ultrasound provides detailed information on vessel wall and plaque morphology. This report illustrates the use of three‐dimensional volumetric IVUS reconstruction images to characterize different patterns of plaque morphology, including vulnerable and ruptured plaques, within a single coronary artery in a patient with unstable angina. Catheter Cardiovasc Interv 2004;61:376–380. © 2004 Wiley‐Liss, Inc.
Exclusion of an isolated iliac artery aneurysm using a bifurcated endograft following failed covered stent exclusion
Authors: Fail Peter S. , Tripp Henry F. , Chaisson Gary A. 
Published: November 2004

AbstractEndovascular exclusion with covered stents is an alternative to surgical repair of iliac artery aneurysms (IAAs). We report a case where covered stent implantation failed to exclude an IAA, as demonstrated by persistent endoleak. The aneurysm was successfully excluded with a bifurcated aortoiliac endograft. This option should be considered for endovascular treatment of IAAs. Catheter Cardiovasc Interv 2004;61:306–309. © 2004 Wiley‐Liss, Inc.
Percutaneous treatment of focal vs. diffuse in‐stent restenosis: A prospective randomized comparison of conventional therapies
Authors: Ragosta Michael , Samady Habib , Gimple Lawrence W. , Sarembock Ian J. , Fenster Michael , Powers Eric R. 
Published: November 2004

AbstractFew randomized studies compare outcomes for focal vs. diffuse in‐stent restenosis (ISR) using conventional treatments. The purpose of this study was to compare the rates of major adverse cardiac events (MACEs) for focal vs. diffuse ISR using conventional techniques. One hundred thirteen patients with ISR were prospectively classified as focal (< 10 mm) or diffuse (> 10 mm). Focal ISR was randomized to balloon angioplasty (n = 29) or restenting (n = 29) and diffuse ISR randomized to rotational atherectomy (n = 30) or restenting (n = 25). At 9 months, patients with focal ISR had higher survival free of MACEs than patients with diffuse ISR (86% vs. 63%; P < 0.005), with no difference between techniques. Only the presence of diffuse ISR was an independent predictor of MACE at 9 months. Thus, focal ISR has a low rate of MACE compared to diffuse ISR, which carries a high event rate regardless of treatment employed. Catheter Cardiovasc Interv 2004;61:344–349. © 2004 Wiley‐Liss, Inc.
Selective embolization of a pulmonary artery rupture caused by a Cournand catheter
Authors: Kaiser Christoph A. , Hügli Rolf W. , Haegeli Laurent M. , Pfisterer Matthias E. 
Published: November 2004

AbstractPulmonary artery rupture is a rare but often fatal complication of right heart catheterization. We present a case of a ruptured pulmonary artery caused by a Cournand catheter in a high‐risk patient with pulmonary hypertension on oral anticoagulation with successful emergency embolization with gelatine foam. Catheter Cardiovasc Interv 2004;61:317–319. © 2004 Wiley‐Liss, Inc.
Angiographic predictors of left ventricular ejection fraction after successful angioplasty in acute myocardial infarction: An angiographic risk score for use in the catheterization laboratory
Authors: Henriques Jose P.S. , Zijlstra Felix , Ottervanger Jan Paul , de Boer Menko‐Jan , Dambrink Jan‐Henk E. , Gosselink A.T. Marcel , van 't Hof Arnoud W.J. , Hoorntje Jan C.A. , Suryapranata Harry 
Published: November 2004

AbstractWe investigated the value of angiographic parameters in patients with successful primary angioplasty using a simple angiographic risk score. In 608 consecutive patients, we assessed the infarct‐related artery, antegrade flow before treatment, presence of distal embolization, and myocardial blush grade after coronary angioplasty. LAD‐related infarction (OR = 8.4; 3 points), TIMI 0–2 flow before angioplasty (OR = 2.2; 1 point), myocardial blush 0 or 1 (OR = 2.5; 1 point), and distal embolization (OR = 2.2; 1 point) were independent predictors of left ventricular ejection fraction (LVEF) ≤ 40% after successful angioplasty. Patients with 0 (minimum) or 1 point have LVEF of 49.5% ± 8.4% and 30‐day mortality of 0.8%. Patients with 2–3 points have LVEF of 44.9% ± 10.3% and 30‐day mortality of 2.8%. Patients with 4 points have LVEF of 38.2% ± 10.8% and 30‐day mortality of 2.7%. Patients with 5–6 (maximum) points have LVEF of 32.0% ± 9.4% and 30‐day mortality of 6.9%. A simple angiographic score predicts LVEF and mortality in patients when leaving the catheterization laboratory after successful primary angioplasty for acute myocardial infarction. Catheter Cardiovasc Interv 2004;61:338–343. © 2004 Wiley‐Liss, Inc.
Synergistic use of sirolimus‐eluting stents and intravascular ultrasound for the treatment of unprotected left main and vein graft disease
Authors: Costa Marco A. , Gigliotti Osvaldo S. , Zenni Martin M. , Gilmore Paul S. , Bass Theodore A. 
Published: November 2004

AbstractTreating unprotected left main disease and degenerated saphenous vein grafts by percutaneous intervention remains one of the more challenging situations facing interventional cardiologists. We present two cases showing how the use of sirolimus‐eluting stents in combination with other novel techniques might alter treatment paradigms in the future. Catheter Cardiovasc Interv 2004;61:368–375. © 2004 Wiley‐Liss, Inc.
Gamma radiation for in‐stent restenosis: effect of lesion length on angiographic and clinical outcomes
Authors: Mehran Roxana , Iakovou Ioannis , Dangas George , Lansky Alexandra J. , Stone Gregg W. , Mintz Gary S. , Kent Kenneth M. , Pichard Augusto D. , Satler Lowell F. , Fahy Martin , Leon Martin B. , Waksman Ron 
Published: November 2004

AbstractThe relation between lesion length and effectiveness of gamma radiation treatment (γ‐RT) has not been well described. We evaluated the acute and long‐term outcome according to baseline lesion length in 130 patients treated with 192Ir in the Washington Radiation for In‐Stent Restenosis Trial; 44 (35.5%) had baseline short in‐stent restenosis (ISR) lesions (length < 15 mm) and 80 (64.5%) long ISR lesions (length ≥ 15 mm). At 6‐month follow‐up after γ‐RT, the short ISR group had larger lumen dimensions and lower late loss than the long ISR group. Restenosis rate was significantly higher in patients with long ISR for both the placebo (74% vs. 39%; P = 0.01) and the γ‐RT arm (31% vs. 5.3%; P = 0.04). γ‐RT significantly improved the angiographic outcome in the short‐lesion groups but had the more pronounced effect on the reduction of clinical events after treatment of long ISR group. Lesion length remains a powerful predictor of recurrent ISR and clinical events after treatment of ISR even with γ‐RT. Catheter Cardiovasc Interv 2004;61:354–359. © 2004 Wiley‐Liss, Inc.
Renal artery aneurysm: Successful exclusion with a stent graft
Authors: Pershad Ashish , Heuser Richard 
Published: November 2004

AbstractRenal artery aneurysms are uncommon. They are either incidentally discovered or identified during workup for secondary hypertension. An association with rupture at sizes greater than 1.5 cm exists. In this case report, the exclusion of a renal aneurysm with a covered stent is described. In spite of compromise of a side‐branch vessel, there were no deleterious effects on renal function at 6‐month follow‐up. Catheter Cardiovasc Interv 2004;61:314–316. © 2004 Wiley‐Liss, Inc.
Evaluation of high‐pressure retrograde coronary venous delivery of FGF‐2 protein
Authors: Fearon William F. , Ikeno Fumiaki , Bailey Lynn R. , Hiatt Bonnie L. , Herity Niall A. , Carter Andrew J. , Fitzgerald Peter J. , Rezaee Mehrdad , Yeung Alan C. , Yock Paul G. 
Published: November 2004

AbstractDelivery of angiogenic factors to ischemic myocardium remains a practical challenge. We evaluated the efficiency and efficacy of delivery of fibroblast growth factor‐2 (FGF‐2) protein via high‐pressure retrograde injection into the anterior interventricular vein (AIV) in a porcine model of chronic myocardial ischemia. Labeled FGF‐2 protein was delivered to the myocardium of three pigs via the AIV and the left anterior descending (LAD) coronary artery in three others. At 1 hr, the amount of protein in the left ventricle and the LAD region was quantified. Copper stents were implanted in the LAD of 25 pigs, resulting in chronic myocardial ischemia. At 4 weeks, microsphere‐derived myocardial blood flow was assessed at rest and during pacing. In eight pigs (AIV FGF), FGF‐2 protein (6 μg/kg) was delivered via high‐pressure retrograde injection into the AIV. Six pigs (intracoronary FGF) received the same amount of FGF‐2 by intracoronary delivery. Five pigs (AIV saline) received a placebo injection into the AIV and six pigs (control) served as controls. Four weeks later, myocardial blood flow was reassessed. At 1 hr, significantly more FGF remained in the left ventricle (1.3 vs. 0.82 μg; P < 0.04) and in the LAD region (1.2 vs. 0.64 μg; P = 0.03) after AIV compared to intracoronary delivery. Four weeks after treatment, resting LAD blood flow (normalized to right ventricular flow) improved slightly in the AIV FGF and intracoronary FGF arms (1.32–1.37 for both; P = 0.11), while it decreased significantly in the AIV saline (1.32–1.23; P = 0.02) and the control arms (1.32–1.19; P = 0.0004). Pacing LAD blood flow decreased significantly in the control arm (1.30–1.23; P < 0.05), but did not change significantly in the other three arms. High‐pressure retrograde injection into the AIV may represent an efficient and effective means for delivering angiogenic factors to ischemic myocardium. Catheter Cardiovasc Interv 2004;61:422–428. © 2004 Wiley‐Liss, Inc.
Safety and feasibility of the use of a distal filter protection device in percutaneous revascularization of small coronary arteries
Authors: Chen Wai‐Hong , Lee Pui‐Yin , Ng William , Lau Chu‐Pak 
Published: November 2004

AbstractThe FilterWire EX is one of the filter protection devices developed as alternatives to balloon occlusion system for percutaneous coronary intervention. Its use has been recommended in vessels between 3.5 and 5.5 mm in diameter and no data are available on its use in smaller vessels. We evaluated the safety and feasibility of using FilterWire EX in native coronary arteries smaller than 3.5 mm. We successfully deployed and retrieved the FilterWire EX in 49 coronary arteries with a mean vessel diameter of 2.62 ± 0.45 mm at device deployment. Reversible vasospasm was observed in 24 (50%) vessels, coronary flow was temporarily reduced in 22 (44.9%), and distal embolization was noted in 2 (4%). There was no vessel dissection induced by the device. These data suggest that it is safe and feasible to use the FilterWire EX in small coronary arteries. Catheter Cardiovasc Interv 2004;61:360–363. © 2004 Wiley‐Liss, Inc.
Percutaneous snare retrieval of a partially embedded wallstent
Authors: Curran Peter J. , Currier Jesse , Tobis Jonathan 
Published: November 2004

AbstractAlthough removal of a stent is a well described method for treating an acutely dislodged or embolized device, removal of a previously deployed stent is unusual. We describe a case where a partially dislodged wallstent in a saphenous vein graft was removed using a snare to permit deployment of a balloon mounted stent across a proximal vein graft stenosis. Catheter Cardiovasc Interv 2004;61:400–402. © 2004 Wiley‐Liss, Inc.