bluuebunny/crossref_metadata_2025_split huggingface dataset:
Entrapment of venous catheter following inferior vena caval spasm
Authors: Dalvi B. V. , Gupta K. G. , Munsi S. C. , Vengsarkar A. S. 
Published: March 2007

AbstractThis is a report of a case in which a 5F high‐flow right coronary catheter with its guide wire was entrapped within the inferior vena cava following a venous spasm. Local infusion of nitroglycerin (NTG) relieved the spasm, and the guidewire–catheter assembly could be safely retrieved.
Complete membranous obstruction of inferior vena cava: Case treated by balloon dilatation
Authors: Loya Y. S. , Sharma Satyavan , Amrapurkar D. N. , Desai H. G. 
Published: March 2007

AbstractA 30 year‐old male with the Budd‐Chiari syndrome due to complete membranous obstruction to the inferior vena cava was successfully treated by Brockenbrough needle puncture followed by balloon dilatation of the membrane. The procedure produced marked symptomatic relief and excellent haemodynamic and angiographic results. The case is reported to highlight the application of balloon angioplasty in this rare condition.
Large air embolus complicating coronary angioplasty
Authors: Haraphongse Mant , Rossall Richard E. 
Published: March 2007

AbstractWith the substantial advances in technology and further refinements in the technique of coronary angioplasty, the potential for and manifestations of complications may have changed from those observed in populations studied previously. We describe a rare complication of percutaneous transluminal coronary angioplasty (PTCA), a large air embolus obstructing coronary flow, which is related to the newer technology. The air embolus was successfully extracted by aspiration through the balloon angioplasty catheter.
Transcatheter occlusion of ventricular septal defect
Authors: O'Laughlin Martin P. , Mullins Charles E. 
Published: March 2007

AbstractThe patent ductus arteriosus occlusion device (Rashkind‐USCI) was employed to occlude a residual ventricular septal defect after Fontan procedure in a patient with hypoplastic right ventricle, ventricular septal defect, and pulmonary stenosis. There was significant right‐to‐left shunting across the ventricular septal defect, with cyanosis exacerbated by exercise. After placement of the 17 mm occlusion device, the right‐to‐left shunt was markedly diminished, and the cyanosis resolved. Occlusion of ventricular septal defects in patients with complex congenital heart disease may be performed with the patent ductus arteriosus occluder in selected instances.
Mitral balloon valvuloplasty using a retrograde transventricular approach via the brachial artery
Authors: Zureikat Harran Y. , Karsheh Issa E. , Naber Natalia M. , Najjar Sakeb M. , El‐Dibs Nayef R. , Salch Suhayl S. 
Published: March 2007

AbstractMitral balloon valvuloplasty was performed successfully in two patients with moderately severe mitral stenosis by using a retrograde transventricular arterial approach. This technique is less costly and less time consuming as compared with the transseptal technique. It avoids the creation of an atrial septal defect, which can result in significant left to right shunt that can make interpretation of haemodynamic data difficult. The major drawback with this technique is the size of the balloon catheters in current use, which can make their introduction into the brachial artery difficult. This paper discusses technical aspects of retrograde crossing of the mitral valve.
Transseptal left heart catheterisation in infants, children, and young adults
Authors: Ali Khan M. A. , Mullins C. E. , Bash S. E. , Al Yousef S. , Nihill M. R. , Sawyer W. 
Published: March 2007

AbstractOver a 5 yr period, from October 1983 to September 1988, transseptal left heart catheterisation, using Mullins long‐sheath technique, was performed in 217 infants, children, and young adults, with various forms of congenital or acquired heart disease. The mean age was 50 ± 45 months, (range 1 mo to 21 yr). The procedure was successful in 215 (99%) patients. Pericardial puncture occurred in three patients (1.4%), though without tamponade or sequelae. There was no mortality or morbidity. Transseptal left heart catheterisation is a safe procedure for studying the left side of the heart. In addition, and of increasing importance, it allows the performance of interventional procedures on the left side of the heart and avoids the use of retrograde catheterisation through the femoral arteries.
Measurement of coronary sinus flow by thermodilution: Observations on the effect of respiration and a review of the potential sources of error
Authors: Stewart J. T. , Gray H. H. , Camm A. J. 
Published: March 2007

AbstractIn a series of experiments involving measurement of left ventricular blood flow by thermodilution in the coronary sinus, a consistent, but unexpected, variation in calculated coronary sinus flow, related to respiration, was seen. In some patients the variation was small, but in others it was as much as 300%. To discover its cause, five patients were investigated prospectively with continuous right atrial pressure monitoring during coronary flow measurement and respiratory manoeuvres. In three, ice‐cold saline was injected into the right atrium during respiratory manoeuvres while coronary sinus temperature was monitored continuously and the position of the catheter was monitored fluoroscopically. The cause was found to be movement of the catheter such that thermistor approached the right atrium, and the variation was therefore spurious. We report these findings and discuss other known causes of inaccurate coronary flow measurement using the thermodilution technique.
Probe angioplasty of total coronary occlusion using an intracoronary probing catheter™
Authors: Little Thomas , Richard Augusto D. , Lindsay Joseph 
Published: March 2007

AbstractCoronary angioplasty (PTCA) of total coronary occlusion is limited by the inability of guidewires and conventional dilating catheters to cross all such lesions. We have therefore developed a technique for PTCA of chronic total coronary occlusions using the ultralow profile “balloon‐on‐a‐wire” Probe™. An intracoronary Probing Catheter™ is used to facilitate crossing the stenosis with a guidewire and then to deliver a Probe into the obstruction for balloon dilatation. This technique was used in 13 patients including six in whom other dilating systems had failed to cross the occlusion. Successful dilatation was performed in nine patients (67%). Among the six patients in whom other dilating systems had failed, dilatation was performed in five using the Probing Catheter technique with a successful outcome acieved in four (67%).The Probing Catheter technique offers a promising new method to apply “balloon‐on‐a‐wire” technology to the dilatation of chronic total coronary occlusions. This method may allow successful dilatation when other dilating systems fail.
Adverse reactions to indocyanine green: A case report and a review of the literature
Authors: Benya Richard , Quintana Joseph , Brundage Bruce 
Published: March 2007

AbstractIndocyanine green is a dye used primarily in cardiac output determinations, and in ophthalmic angiography. It has a low incidence of side effects; however, they occur and have included death. We report a case of anaphylactoid reaction to indocyanine green and review the literature on these reactions.
Accelerated aortic stenosis
Authors: Graham Susan P. , Nath Amar 
Published: March 2007

AbstractA 56 year‐old woman presented in congestive heart failure 4 weeks after cardiac catheterization. By repeat catheterization, the mean gradient across the native aortic valve had progressed from 10 mm Hg to 51 mm Hg. In patients with calcific‐degenerative valvular disease, the rapid worsening of aortic stenosis should be considered in the differential diagnosis of recurrent heart failure.
Complex multiple percutaneous transluminal coronary angioplasties with vortex oxygenator cardiopulmonary support in the community hospital setting
Authors: Freedman R. J. , Wrenn R. C. , Godley M. L. , Knoepp J. D. , Smith Curt , LaCroix C. 
Published: March 2007

AbstractWith the support of a Bard percutaneous cardiopulmonary bypass pump system, multiple complex percutaneous transluminal coronary angioplasties (PTCAs) were performed successfully in four patients previously declined for surgery or intervention because of prohibitive risks.
Systolic compression of the right coronary artery by a pseudoaneurysm following mitral valve replacement
Authors: Minami Kenneth T. , Fergusson David J. G. 
Published: March 2007

AbstractA patient who developed a pseudo‐, or false, aneurysm following mitral valve replacement is presented here with the unique angiographic finding of systolic compression of the right coronary artery by the pseudoaneurysm. Clinical and angiographic features of this case along with a discussion of pseudoaneurysms and the significance and causes of systolic compression of coronary arteries are presented.
Staged thrombolysis and percutaneous transluminal coronary angioplasty for unstable and postinfarction angina
Authors: Hurley Dominic V. , Bresnahan Dennis R. , Holmes David R. 
Published: March 2007

AbstractThe precise timing of intravenous thrombolysis and coronary angioplasty continues to be evaluated for patients who have coronary thrombosis and unstable angina or postinfarction angina. Coronary angioplasty is effective for these patients but is associated with thromboembolic coronary occlusion in 24% to 29% of cases. After adjunctive intravenous thrombolysis and oral antiplatelet therapy to improve the success rate and to decrease the risk of acute occlusion, deferred angioplasty was successful in three patients with intracoronary thrombus and unstable angina or postinfarction angina. Staged thrombolysis and deferred angioplasty is feasible for selected patients with these acute coronary syndromes.
Repeat balloon aortic valvuloplasty for aortic valve restenosis
Authors: Ross Terence C. , Banks Alan K. , Collins Tyrone J. , Ramee Stephen R. , White Christopher J. , Moore John W. 
Published: March 2007

AbstractEffective balloon aortic valvuloplasty (BAV) is limited by restenosis. After aortic valve restenosis six patients underwent repeat BAV. In spite of the use of larger balloons there was a trend toward a less satisfactory result after repeat BAV (0.98 ± .26 cm2 vs. 1.2 ± .26 cm2), which did not reach statistical significance, P = .14. Mortality of the patients at 6 months was 50%. Repeat BAV may be less efficacious than the original procedure.
Spontaneous cyclic severe mitral regurgitation
Authors: Engel Peter J. , Wayne Donald 
Published: March 2007

AbstractTwo patients are described with spontaneous wide fluctuations in the size of pulmonary capillary wedge pressure V waves thought to be related to cyclic spontaneous variations in the degree of mitral regurgitation over very short periods of time. The findings are thought to represent a hemodynamically distinct syndrome intermediate between chronic severe and acute severe mitral regurgitation.
Percutaneous brachial coronary angioplasty utilizing a standard side arm sheath introducer system
Authors: Korr Kenneth S. , Januski Victoria 
Published: March 2007

AbstractA percutaneous approach via the brachial artery for coronary angioplasty is described. The technique employs a standard side arm sheath introducer system routinely intended for the femoral artery. Initial experience in ten cases shows this to be a relatively easy and safe alternative to conventional brachial arteriotomy, with some distinct advantages. It is less time consuming, permits the use of a variety of standard preformed guiding catheters, is associated with less patient discomfort, and the sheaths may be left in place for many hours if the angioplasty is complicated and/or long‐term anticoagulation is desirable. Complications were limited to the female patients in this series. This technique is most suited to those operators who employ the brachial approach infrequently and only out of necessity in patients with severe peripheral vascular disease.
Complex coronary angioplasty: Use of a new microprobe balloon catheter
Authors: Mayo Joseph R. , Candela Richard J. , Zimmerman Connie , George Barry S. 
Published: March 2007

AbstractSince the introduction of coronary angioplasty by Gruntzig et al. (Circulation [Suppl II] 56:84,1977), a key determinant to overall success has been advancement in equipment technology. Major advances have been made in the availability of low‐profile catheters in the last 5 years that have facilitated penetration of high‐grade distal and complex lesions. The USCI Probe TM catheter is an example of a low‐profile catheter that has shown favorable applicability in dilating high‐grade stenoses. Preliminary data indicate that this device has good trackability and an extremely low profile, which allows penetration of stenoses where other current low‐profile catheters have failed.
Optimal display of the coronary arterial tree with an upscan 1,023‐line video display system
Authors: Holmes David R. , Wondrow Merrill A. , Reeder Guy S. , Gray Joel E. , Fellows James L. , Julsrud Paul R. 
Published: March 2007

AbstractDifferences of opinion exist as to whether visualization of the coronary arterial tree is better with 525‐line or 1,023‐line video imaging systems. The 1,023‐line acquisition has been associated with image degradation; 525‐line display, however, has prominent raster lines that may also degrade the image. For evaluation of this issue, identical coronary arterial images were obtained with 525‐line acquisition and then displayed with either 525‐line or 1,023‐line display. The 525‐line acquisition with digital upscan 1,023‐line display had superior image quality compared with 525‐line display. With the use of 525‐line acquisition and 1,023‐line display, video images were similar to or slightly better than the identical cineangiographic images.
Adequate heparinization during PTCA: Assessment using activated clotting times
Authors: Ogilby J. David , Kopelman Harry A. , Klein Lloyd W. , Agarwal Jai B. 
Published: March 2007

AbstractHeparinization during PTCA is often done empirically with an initial 10,000 unit bolus of heparin and subsequent additional boluses as deemed necessary to prevent thrombus formation and fibrin deposition. However, the initial 10,000 unit bolus may not result in adequate systemic anticoagulation in every patient, exposing some patients to risk of thrombus at the angioplasty site and subsequent reocclusion. In this non‐randomized study, we assessed systemic coagulation during PTCA by retrospectively analyzing activated clotting times obtained in 108 consecutive patients. All patients had normal baseline prothrombin times and activated partial thromboplastin times. Patients who were on heparin prior to PTCA were excluded. Based on data from studies on heparinization during extracorporeal bypass an activated clotting time (ACT) of greater than 300 seconds was required. Twelve patients (11 %) were observed to have activated clotting times of below 300 seconds after an initial 10,000 unit bolus of heparin. These patients required an additional 3,000‐10,000 units of heparin to have systemic anticoagulation during PTCA. Symptoms of stable or unstable angina had no significant effect on heparin requirement, although there was a trend toward greater heparin resistance in unstable angina.We conclude that it is important to monitor the status of anticoagulation during PTCA, for 11 % of patients undergoing PTCA require additional initial heparin bolus to achieve an ACT greater than 300 seconds and to be effectively anticoagulated. Careful monitoring of heparinization during PTCA may reduce the incidence of thrombosis.
Side branch occlusion during coronary angioplasty: Incidence, angiographic characteristics, and outcome
Authors: Arora Rohit R. , Raymond Russell E. , Dimas Alexios P. , Bhadwar Kavita , Simpfendorfer Conrad 
Published: March 2007

AbstractSide branch occlusion (SBO) during percutaneous transluminal coronary angioplasty is a well‐recognized complication. The purpose of the present study was to analyze the incidence, angiographic characteristics, and sequelae of side branch occlusion. Data from coronary angiograms of 4,800 consecutive patients from January 1981 to December 1987 was retrospectively analyzed, and 167 patients (3%) involving 181 lesions, with side branch occlusion, were identified. Only arteries with occlusion of side branches >1 mm were evaluated. There were 65 (36%) diagonal, 49 (27%) septal, 40 (22%) left circumflex, and 27 (15%) right coronary branch occlusions. Most side branch occlusion occurred in branches with disease (66%: 120 of 181) or branches originating within the primary arterial lesion (72%: 130 of 181).Although the incidence of side branch occlusion is uncommon, it is associated with a significant incidence of myocardial infarction (14%). Attempts to reopen the occluded branch were successful in 27 of 36 cases (75%). With improvement in balloon angioplasty technology, the risks of side branch occlusion have declined, and many occlusions can be successfully reopened, suggesting that side branch involvement in a primary lesion is not a limitation to balloom angioplasty.
Late hemodynamic results after orthotopic heart transplantation in early infancy
Authors: Kanakriyeh Mohammad S. , Mullins Charles E. , Parisi Francesco , Petry Eugene L. , Bailey Leonard L. 
Published: March 2007

AbstractTo study the late hemodynamic results after infant orthotopic heart transplantation, five late survivors, as of October 1988, underwent right and left cardiac catheterization and endomyocardial biopsy. Mean age at transplantation was 1.4 ± 1.5 months. Mean post‐transplantation period was 17 ± 5.6 months. All patients were on maintenance immunotherapy. The systemic and mixed venous saturations were normal, with no intracardiac shunt. The atrial and pulmonary artery anastomoses were widely patent. Three patients had coarctation of the aorta with a respective gradient of 24, 26, and 30 mm Hg; two were successfully treated by balloon angioplasty. The right‐side hemodynamics were normal in all patients. Left ventricular pressures were elevated only in the patients with coarctation. The ventricular ejection fraction was normal. The right ventricular endomyocardial biopsy revealed no evidence of rejection. The mean cardiac index was 4.7 liter/min/m2 (range, 3.68–5.9). These data indicate excellent hemodynamic results and support orthotopic heart transplantation as therapy for selected neonates and infants with incurable heart disease.
Treatment of coronary artery stenosis and coronary arteriovenous fistula by interventional cardiology techniques
Authors: Nguyen Khiem , Myler Richard K. , Hieshima Grant , Ashraf Mohammed , Stertzer Simon H. 
Published: March 2007

AbstractComplications associated with coronary arteriovenous fistulae (CAVF) include congestive heart failure, bacterial endocarditis, fistula rupture, and angina secondary to the “coronary steal” phenomenon. Traditional treatment of large CAVF is surgical ligation. In this report, we describe a modified microcoil embolization and guidewire technique for percutaneous closure of CAVF.
Intracoronary thrombectomy: A new approach to total occlusion
Authors: Kipperman Robert M. , Feit Alan S. , Elnhorn Arnold M. , Co John A. 
Published: March 2007

AbstractAfter initial failure with conventional angioplasty of a total right coronary artery occlusion, we were successful in obtaining patency using a combination of intracoronary thrombectomy and thrombolysis. This represents the first report of this technique in the therapy of total right coronary occlusions.
Balloon entrapment in a coronary artery: Potential serious complications of balloon rupture
Authors: Colombo Antonio , Skinner Joan M. 
Published: March 2007

AbstractWe report a case of balloon catheter rupture with subsequent entrapment during percutaneous transluminal coronary angioplasty. The presence of a calcified, distal lesion is believed to have prevented withdrawal of the broken catheter. A nonsurgical retrieval technique, using a second dilation system, was used to free the catheter.
False coronary dissection with the new Monorail angioplasty balloon catheter
Authors: Esplugas Enrique , Cequier Angel R. , Sabaté Xavier , Jara Francisco 
Published: March 2007

AbstractDuring percutaneous transluminal coronary angioplasty, the appearance of persistent staining in the vessel by contrast media suggests coronary dissection. We report seven patients in whom a false image of severe coronary dissection was observed during angioplasty performed with the new Monorail balloon catheter. This image emerges at the moment of balloon inflation, is distally located to the balloon, and disappears with balloon catheter deflation. No complications were associated with the appearance of this image.
Angioplasty of recent total coronary occlusions: Cardiac death can occur in “low‐risk” cases
Authors: Butman Samuel 
Published: March 2007

AbstractRevascularization by angioplasty of total coronary artery occlusions is generally thought to be relatively safe in experienced hands. Although success rates are lower than with diseased but patent vessels, reasonable success can be expected. In this report, different events led to a sudden and fatal outcome in two patients with total coronary occlusions subtending recently infarcted, but still viable, areas of myocardium. The cases and procedural details are presented.
Percutaneous balloon valvuloplasty of a stenosed mitral bioprosthesis
Authors: Fernandez Jose J. , Desando C. James , Leff Richard A. , Ord Mark , Sabbagh Adib H. 
Published: March 2007

AbstractA 62‐year‐old woman with disabling mitral prosthetic stenosis underwent percutaneous balloon valvuloplasty. The transvalvular gradient preoperatively was 22 mm Hg and was reduced to 6 mm Hg after the valvuloplasty. The valve area was increased from an initial value of 0.77 cm2 to 1.53 cm2. No complications occurred related to the procedure. Further studies are necessary to ascertain the indications and long‐term results of percutaneous valvuloplasty on bioprosthesis in the mitral position.
Single coronary artery associated with annuloaortic ectasia and ventricular septal defect
Authors: Kallikazaros John E. , Gavaliatsis Isidoros P. , Tentolouris Costas A. , Merkouris Costas S. , Liasides Christakis E. , Kourouklis Costas B. , Toutouzas Pavlos C. 
Published: March 2007

AbstractA 60‐year‐old man with a single left coronary artery associated with an annuloaortic ectasia and a ventricular septal defect is described. He presented with severe heart failure and underwent open‐heart surgery during which all these entities were confirmed.
Comparison of 5F and 7/8F catheters for left ventricular and coronary angiography
Authors: Hui William K. K. , Klinke W. Peter , Kubac George , Talibi Talip 
Published: March 2007

AbstractFifty‐two patients were randomized into two groups of 26 to the use of either 5 or 7/8F catheters for their first left heart cardiac catheterization. Clinical characteristics for the two groups were similar. 5F catheters were significantly inferior to 7/8F catheters in terms of torque control (P<.001), ease of engaging coronary ostia (P<.001), and quality of angiograms (P<.05). Nine patients in the 5F group required a change to 7/8F catheters for completion of the procedure. There was no difference in procedure time or fluoroscopy time between the groups. Time to haemostasis was significantly shorter in the 5F group (P<.01), but there was no difference between groups with respect to haematoma formation or rebleed after haemostasis. We conclude the slight advantage of 5F catheters in terms of haemostasis is outweighed by many disadvantages. Their routine use in cardiac catheterization, at least at this time, cannot be recommended.