bluuebunny/crossref_metadata_2025_split huggingface dataset:
ACS RX™ flow support catheter as a temporary stent for dissection or occlusion during balloon angioplasty: Initial experience
Authors: Heuser Richard R. , Mehta Steven , Strumpf Robert K. 
Published: March 2007

AbstractThe ACS RX™ flow support catheter, which functions as a temporary stent, was placed successfully during four procedures in three patients who had suboptimal results following angio‐plasty. This investigational device allowed prolonged perfusion and supported the vessel wall when coronary blood flow was compromised, avoiding emergent coronary artery bypass graft surgery during two procedures. In the remaining procedures the device was used as a bridge to surgery. These early applications of the flow support catheter following failed balloon angioplasty suggest a rapid, effective alternative to the auto‐perfusion balloon when it fails or is contraindicated because of the lesion location.
Failure of endocardial biopsy from the internal jugular vein due to endocardial scar: A new indication for the femoral venous approach
Authors: Matthai William H. , Herrmann Howard C. , Kussmaul William G. 
Published: March 2007

AbstractFollowing cardiac transplantation, patients undergo serial endomyocardial biopsies to evaluate rejection, usually by the internal jugular approach. A case report and data are presented that demonstrate that this approach becomes less efficient and occasionally impossible in the third year after transplant (53% success rate per biopsy attempt) as compared to the first year after transplant (80%) probably due to the development of endocardial scar in the area sampled by the bioptome. Alternatively, one can change to the femoral venous approach which continues to have a high success rate in the third year after transplant (83%) because a different area of the interventricular septum is sampled when this approach is used.
Effects of an ionic versus a nonionic low osmolar contrast agent on the thrombotic complications of coronary angioplasty
Authors: Piessens Jan H. , Stammen Francis , Vrolix Matty C. , Glazier James J. , Benit Edouard , De Geest Hilaire , Willems Jos L. 
Published: March 2007

AbstractAn increasing body of evidence suggests that the potential for thrombotic complications is greater with nonionic than with ionic contrast agents. This is a particularly important consideration in the highly thrombogenic setting of percutaneous transluminal coronary angioplasty (PTCA). To explore this issue further, 500 consecutive patients undergoing PTCA were prospectively randomized to receive the low osmolality ionic ioxaglate or the nonionic agent iohexol. The number of acute thrombotic in‐laboratory events was significantly less in the ioxaglate than in the iohexol group (8 versus 18; P < 0.05), but there was no significant difference between the 2 groups as regards the number of out‐of‐laboratory acute rethrombotic events. With multivariate analysis, use of the nonionic agent rather than the ionic agent emerged as an independent predictor of acute in‐laboratory rethrombosis. These data suggest that, in the performance of PTCA, an ionic, rather than a nonionic, should be the preferred contrast agent. © 1993 Wiley‐Liss, Inc.
Prograde double balloon dilation of congenital aortic valve stenosis: A case report
Authors: O'Laughlin Martin P. , Slack Michael C. , Grifka Ronald , Mullins Charles E. 
Published: March 2007

AbstractA new method for prograde balloon dilation of severe congenital aortic valve stenosis is described. Two TEGwire™ balloons were used prograde through bilateral femoral venous sheaths. Excellent hemodynamic results were achieved, without the need for retrograde left heart catheterization and femoral arterial sheath placement. © 1993 Wiley‐Liss, Inc.
Transcatheter closure of residual atrial septal defect following cardiac transplantation
Authors: O'Laughlin Martin P. , Bricker J. Timothy , Mullins Charles E. , Cabalka Allison K. , Gelb Bruce D. , Towbin Jeffrey A. 
Published: March 2007

AbstractAn almost 3‐year‐old boy had a residual atrial septal defect after cardiac transplantation. The patient was symptomatic and had arrhythmia and cardiac enlargement. An atrial septal defect occlusion device was employed to close the communication with excellent results. Transcatheter occlusion enabled the patient to avoid further surgery and did not interfere with follow‐up endomyocardial biopsies. © 1993 Wiley‐Liss, Inc.
The use of transesophageal echocardiography to avoid left atrial thrombus during percutaneous mitral valvuloplasty
Authors: Kamalesh Masoor , Burger Andrew J. , Shubrooks Samuel J. 
Published: March 2007

AbstractDuring mitral balloon valvuloplasty, transesophageal echocardiography (TEE) has been employed for the accurate placement of the transseptal needle, guide wires, and balloon catheters and to provide an immediate evaluation of the results of the procedure. We describe a case demonstrating that TEE can be used to avoid a left atrial appendage thrombus during the placement of wires and catheters. With TEE guidance, we feel left atrial appendage thrombi are no longer an absolute contraindication to percutaneous mitral valvuloplasty. © 1993 Wiley‐Liss, Inc.
Rescue transcatheter embolectomy following complicated transluminal extraction atherectomy of a coronary vein graft
Authors: Gamra Habib , Ruiz Carlos E. , Zhang He Ping , Whittaker Peter 
Published: March 2007

AbstractTransluminal extraction catheter atherectomy of a saphenous vein graft to the right coronary artery was performed in a 72‐year‐old female and was complicated by distal embolization. A successful transcatheter aspiration of the embolic plaque was achieved. The usefulness of this technique as a coronary intervention is discussed.
Restenosis following successful balloon valvuloplasty: Bone formation in aortic valve leaflets
Authors: Feldman Ted , Glagov Seymour , Carroll John D. 
Published: March 2007

AbstractRestenosis after balloon aortic valvuloplasty is common, occurring in as many as half or more of patients in the first year. To gain understanding of the mechanisms of restenosis we examined results of second dilatations and the histology of restenosed valves excised during valve replacement for restenosis. Eleven patients with calcific aortic stenosis underwent second valvuloplasty for restenosis. The mean age was 82 ± 6 years. The interval between first and second dilatation was 14.7 ± 8.5 months. First valvuloplasty resulted in an increase in valve area from 0.63 ± 0.23 to 1.09 ± 0.32 cm2 (P<0.01). The valve area found after symptoms recurred was 0.56 ± 0.18 cm2, not significantly different from the prevalvuloplasty dimensions. Second dilatation resulted in a mean aortic valve area of 0.76 ± 0.22 cm2 (p = 0.011 vs results of first valvuloplasty). The change in valve area after first dilatation was 0.45 ± 0.17 vs 0.20 ± 0.13 cm2 after second dilatation (p<0.01). Multiple histologic sections from excised, restenosed valves from five additional patients showed zones of active capillary and cellular proliferation and fibrosis in crevices between calcific nodules in three cases. Associated foci of ossification were seen in two of these. Stenotic nonvalvuloplasty control valves (n = 19) showed no ossifications. In conclusion, histologic changes in restenosed valves differ from those seen initially in calcific aortic stenosis, with granulation tissue, fibrosis, and ossification being present. These findings may help to explain the limited results of second dilatations for restenosis.© 1993 Wiley‐Liss, Inc.
Implantation of half palmaz‐schatz stents in short aorto‐ostial lesions of saphenous vein grafts
Authors: Nordrehaug Jan Erik , Priestley Kim , Chronos Nicolas , Buller Nigel , Sigwart Ulrich 
Published: March 2007

AbstractTwo cases are presented in which a half Palmaz‐Schatz stent was implanted in a short lesion located in the ostium of a saphenous vein graft. Aorto‐ostial stenoses are a technical challenge for balloon angioplasty and stenting. Short stents may offer several advantages as regards deployment, positioning, thrombogenicity, and restenosis. © 1993 Wiley‐Liss, Inc.
Diagnosis of stenosis in a pulmonary valve‐conduit using an angioplasty guide and probing catheter
Authors: Wilentz James R. , Fratellone Patrick 
Published: March 2007

AbstractA 42‐year‐old man who had undergone previous Blalock‐Taussig anastomoses and placement of a homograft aortic valve‐root conduit for tetralogy of Fallot presented with dyspnea at rest. Previous catheterization had shown homograft stenosis at the level of the pulmonic valve. Repeat catheterization necessitated the use of angioplasty guide and probing catheters to cross the stenosis, and pullback documented stenoses both across the homografted valve and within the homograft aortic root‐native pulmonary artery conduit. © 1993 Wiley‐Liss, Inc.
Endoluminal sealing of vascular wall disruptions with radiofrequency‐heated balloon angioplasty
Authors: Resar Jon R. , Wolff Matthew E. , Hruban Ralph H. , Brinker Jeffrey A. 
Published: March 2007

AbstractSuboptimal luminal widening or acute closure secondary to arterial dissection remain significant risks of percutaneous transluminal balloon angioplasty. Non surgical techniques are often employed in an attempt to repair dissections either as temporary or definitive treatment. The aim of this study was to test the hypothesis that radiofrequency thermal balloon angioplasty at an operating temperature of 70°C and low inflation pressure could seal dissections and perforations in a model of severe arterial wall damage. Dissections and perforations were created in renal (n = 4) and carotid (n = 4) arteries in four mongrel dogs. Endoluminal sealing was then attempted with conventional balloon angioplasty or radiofrequency thermal balloon angioplasty (2 atm at 70°C). Contrast dye extravasation persisted in all cases following conventional balloon angioplasty but completely resolved with radiofrequency balloon angioplasty in all but one artery. Histologic examination of the arteries treated with radiofrequency balloon angioplasty showed extensive thermal injury, including transmural coagulation necrosis, flattening of the internal elastic lamina, and medial thinning. On the basis of these results, the utility of thermal balloon angioplasty for endoluminal sealing of dissections and perforations complicating angioplasty deserves further evaluation. © 1993 Wiley‐Liss, Inc.
Percutaneous left atrial to femoral arterial bypass pumping for circulatory support in high‐risk coronary angioplasty
Authors: Glassman Ephraim , Chinitz Larry A. , Levite Howard A. , Slater James , Winer Howard 
Published: March 2007

AbstractLeft atrial to femoral arterial bypass was evaluated as a means of supporting patients who were considered to be at high risk for the performance of percutaneous transluminal coronary angioplasty. A 20 French drainage catheter was inserted percutaneously into the left atrium via a modified transseptal technique. Blood was withdrawn from the left atrium and returned through a femoral arterial cannula using a roller pump. Thirteen patients were treated in this fashion with excellent circulatory support. Pump flows varied from 1.5 to 3 liters per minute and bypass time ranged from 27 to 106 min (mean 43±17). Aortic mean pressure was well supported during balloon inflation. No significant complications were encountered. Neither an oxygenator nor a perfusionist is required. The ability to obtain direct left ventricular decompression offers a major potential advantage. Further evaluation of this technique for the support of such patients is indicated.© 1993 Wiley‐Liss, Inc.
Coronary angiography in cardiac myxomas: Findings in 19 consecutive cases and review of the literature
Authors: van Cleemput J. , Daenen W. , de Geest H. 
Published: March 2007

AbstractWe reviewed the coronary angiographic findings of 19 patients with a cardiac myxoma, who underwent cardiac catheterization before surgery. Seventeen myxomas were localized in the left atrium and seven had angiographically visible tumor vascularity emerging from atrial branches of the right coronary artery in four patients and the circumflex coronary artery in three. In one patient, we found significant coronary artery disease of the circumflex coronary artery and in another we saw a thrombus‐like lesion in the proximal third of the left anterior descending coronary artery. Our results are compared with the findings in two smaller groups of patients with cardiac myxoma who underwent coronary angiography preoperatively. We conclude that the major importance of coronary angiography in patients with cardiac myxomas is to exclude concomitant coronary artery disease before surgery. In a very small minority of patients, a selective coronary angiography is the clue to the diagnosis of cardiac myxoma. © 1993 Wiley‐Liss, Inc.
Anomalous connection between the sinus node artery and the A‐V node artery
Authors: Krauss Daniel , Carter James E. , Feldman Ted 
Published: March 2007

AbstractAnomalous connection between the sinus node artery and A‐V node artery is an extremely rare coronary variant. Angiographic and clinical data from an adult with this finding are reported. Coronary embryogenesis and normal nodal arterial blood supply are reviewed. © 1993 Wiley‐Liss, Inc.
Successful prolonged local infusion of urokinase for the hypothenar hammer syndrome
Authors: Yakubov Steven J. , Nappi James F. , Candela Richard J. , George Barry S. 
Published: March 2007

AbstractUlnar artery thrombosis secondary to trauma, also known as the hypothenar hammer syndrome, has been most commonly been treated by surgical techniques. Applying concepts of local lysis of thrombotic occlusion used in cardiac and peripheral vascular intervention, we describe a method of correction of the hypothenar hammer syndrome by prolonged urokinase infusion. © 1993 Wiley‐Liss, Inc.
Sinus of valsalva aneurysms involving both coronary ostia
Authors: Tami Luis F. , Turi Zoltan G. , Arbulu Agustin 
Published: March 2007

AbstractSinus of Valsalva aneurysms are a rare cause of angina or myocardial infarction. We describe a patient with unstable angina and massive unruptured aneurysms of both coronary sinuses causing severe distortion of both coronary ostia, to our knowledge not previously reported. This unusual patient underwent aortic valve replacement, ascending aortic repair, and coronary artery bypass. At 11‐year follow‐up, she had developed severe mitral stenosis and prosthetic aortic valve stenosis. Review of the literature reveals 30 reported cases of Sinus of Valsalva aneurysm complicated by coronary insufficiency or infarction, involving either the left (20 cases) or the right coronary sinus (10 cases). We emphasize the poor outcome of these patients, especially if treated conservatively. © 1993 Wiley‐Liss, Inc.
Guidelines for training, credentialing, and maintenance of competence for the performance of coronary angioplasty: A report from the interventional cardiology committee and the training program standards committee of the society for cardiac angiography and interventions
Authors: Cowley Michael J. , Faxon David P. , Holmes David R. 
Published: March 2007

AbstractThis report suggests updated guidelines for training, credentialing, and maintenance of proficiency in coronary angioplasty and for the newer, more advanced interventional techniques; and recommends establishment of a subspecialty examination for certification of special competencies in international cardiology.© 1993 Wiiey‐Liss, Inc.
Percutaneous transluminal coronary angioplasty of a right coronary artery arising from the left main coronary artery
Authors: Gibbs Harry H. , Spokojny Artur M. , Molloy Thomas J. , Kamen Mazen O. , Sanborn Timothy A. 
Published: March 2007

AbstractAngioplasty of anomalous coronary arteries presents unique technical challenges. Correct guiding catheter selection is important to ensure adequate access to the anomalous vessel and to provide support to cross the lesion. A case of successful PTCA of a lesion in an anomalous right coronary artery arising from the left main coronary artery is presented. © 1993 Wiiey‐Liss, Inc.
Double left anterior descending artery originating from the left and right coronary artery: A rare coronary artery anomaly
Authors: Voudris Vasilis , Salachas Anastasios , Saounotsou Maria , Sionis Dimitris , Ifantis George , Margaris Nikolaos , Koroxenidis Gabriel 
Published: March 2007

AbstractA case of double left anterior descending coronary artery is presented. The double artery originated from the left main stem and the right coronary artery. There were no stenoses on these two arteries. This anomaly of coronary arteries seems to be very rare. © 1993 Wiiey‐Liss, Inc.
Transcatheter management of pulmonary venous pathway obstruction with atrial baffle leak following mustard and senning repair
Authors: Hosking Martin C. K. , Alshehri Mohammed , Murdison Kenneth A. , Teixeira Otto H. P. , Duncan Walter J. 
Published: March 2007

AbstractTwo patients presenting with pulmonary venous baffle obstruction following Mustard or Senning repair of transposition of the great arteries were successfully treated with percutaneous balloon dilatation. At the time of baffle dilatation, a significant systemic to pulmonary venous Mustard baffle leak was successfully closed with a Rashkind ductal occluder device. Specific features pertaining to the morphology of the baffle defect that allowed successful catheter occlusion are discussed and compared to that found in a Senning patient. The important adjunctive role of transoesophageal echocardiography within the catheterization laboratory is emphasized. © 1993 Wiiey‐Liss, Inc.
Clinically guided closure of femoral arterial pseudoaneurysms complicating cardiac catheterization and coronary angioplasty
Authors: Agarwal Rajiv , Agrawal Subodh K. , Roubin Gary S. , Berland Lincoln , Cox David A. , Iyer Sriram S. , Dean Larry S. , Baxley William A. 
Published: March 2007

AbstractFemoral artery pseudoaneurysm formation is a significant problem in patients undergoing cardiac catheterization and interventional cardiac procedures. It is especially more common with the use of anticoagulant and antiplatelet therapy and the use of intracoronary stents. We describe our initial experience with clinically guided bedside compression of femoral pseudoaneurysms in such patients.Eleven patients, 10 undergoing coronary angioplasty (including 3 with intracoronary stents) and 1 undergoing diagnostic cardiac catheterization, developed a femoral pseudoaneurysm. All patients had a femoral bruit and 9 had an expansile groin hematoma. The diagnosis was confirmed in each case by Doppler ultrasound. Seven patients were receiving heparin while 4 were on oral anticoagulants at the time of detection of the pseudoaneurysm. These patients underwent clinically guided graded external compression to close the pseudoaneurysm neck while maintaining femoral arterial flow.External compression for 104.1 ± 63 min resulted in successful clinical resolution of pseudoaneurysm in all patients without complications. The results were confirmed by Doppler ultrasound at least 12 hr later.Bedside compression of femoral pseudoaneurysms guided by clinical clues is simple and appears to be an effective and safe technique to manage this iatrogenic problem. © 1993 Wiiey‐Liss, Inc.
Correct positioning for cardiac angiography: Insights from mri
Authors: Hartnell George G. , Bradley Francis M. 
Published: March 2007

AbstractThe recommended angiographic projections for optimally demonstrating various cardiac structures vary, and do not always achieve their aim. To determine the most appropriate radiographic projections to optimally demonstrate cardiac structures, we reviewed the orientations of major cardiac structures and the associated great vessels, as demonstrated by axial MRI.Measurements were made from 187 MRI examinations of the heart. These measurements confirmed that the optimum angiographic projections for various cardiac structures are at variance with a number of the recommended views. Recommendations for the angiographic projections most likely to provide optimum display of various cardiac structures and associated great vessels in different patient populations are presented. © 1993 Wiiey‐Liss, Inc.
Percutaneous balloon valvuloplasty in mirror‐image dextrocardia and rheumatic mitral stenosis
Authors: Raju Raghava , Singh Shailender , Kumar Padma , Rao Srinivasa , Kapoor S. , Raju B. S. 
Published: March 2007

AbstractA 28‐year‐old woman with mirror‐image dextrocardia and severe rheumatic mitral stenosis underwent successful percutaneous balloon mitral valvuloplasty (PBMV). Standard technique was altered to include transseptal catheterization via the left femoral vein and inter‐atrial septal puncture with the transseptal needle rotated to a 7 o'clock position. The predilatation transmitral gradient (mean) of 16 mmHg decreased to 5 mmHg following PBMV. The valve area improved from 1.0 cm2 to 2.6 cm2. There were no complications. This case illustrates that transseptal catheterization can be accomplished safely in patients with unusual cardiac anatomy and mitral valvuloplasty can be performed in patients with mirror‐image dextrocardia and rheumatic mitral stenosis. © 1993 Wiiey‐Liss, Inc.
Use of an intracoronary stent to control intrapericardial bleeding during coronary artery rupture complicating coronary angioplasty
Authors: Thomas M. R. , Wainwright R. J. 
Published: March 2007

AbstractCoronary artery rupture is a rare complication of percutaneous transvenous coronary angioplasty (PTCA) usually requiring urgent cardiac surgery and often resulting in a poor outcome including death. We report, for the first time, the use of an intracoronary stent to control intrapericardial bleeding following the development of a coronary artery rupture during PTCA. Cardiac surgery was avoided and the patient was discharged well 1 week after the procedure. © 1993 Wiley‐Liss, Inc.
Experience with u‐shaped catheters in angiography and angioplasty of the left coronary artery
Authors: El Gamal M. , Bracke F. , Bonnier J. , El Biltagiu S. , Peels C. , Pijls N. , van Gelder L. 
Published: March 2007

AbstractWe developed a U‐shaped diagnostic and guiding catheter for left coronary angiography and angioplasty. Angiography with a 6 French (F) diagnostic U‐shaped catheter was attempted in 101 patients (pts). Primary use in 82 pts; all successful. Secondary use after failure of 6 F left Judkins diagnostic catheters to intubate the left main coronary artery in 19 pts; 17 successful. An 8 F U‐shaped guiding catheter was used for percutaneous transluminal coronary angioplasty (PTCA) of left coronary artery branches in 102 pts [left anterior descending (LAD), 48 pts; circumflex (CX), 54 pts]. Stable cannulation of the left coronary artery was achieved in 96 pts (94%), but PTCA was successful in 90 pts (88%). Primary use in 70 pts (LAD, 27 pts; CX, 43 pts). PTCA was successful in 60 pts. Secondary use after failure of left Judkins and Amplatz guiding catheters in 32 pts (LAD, 21 pts; CX, 11 pts). PTCA was successful in 30 pts. No complications were seen. In conclusion, U‐shaped diagnostic and guiding catheters increased the success rate of (1) left coronary angiography after failure of left Judkins diagnostic catheters; and (2) PTCA of the left anterior descending and circumflex arteries after failure of left Judkins and Amplatz guiding catheters
© 1993 Wlley‐Liss, Inc