bluuebunny/crossref_metadata_2025_split huggingface dataset:
Intracoronary stent implantation: New approach using a monorail system and new large‐lumen 7 f catheters from the brachial route
Authors: Jenny Donald B. , Robert Gabriel P. , Fajadet Jean C. , Cassagneau Bernard G. , Marco Jean 
Published: March 2007

AbstractIn this brief report we describe a case of successful multivessel PTCA with intracoronary stent implantation using a new large‐lumen 7F catheter from the left brachial approach. The application of this technique should be considered for intravascular stent implantation when anticoagulation ideally should not be interrupted or in anatomical situations limiting femoral vascular access.
Mitral balloon valvuloplasty in pregnancy: Advantages of a unique balloon
Authors: Gangbar E. W. , Watson K. R. , Howard R. J. , Chisholm R. J. 
Published: March 2007

AbstractThe burden of pregnancy in patients with severe mitral stenosis continues to present a therapeutic challenge. We present two such cases successfully treated with balloon valvuloplasty using the Inoue balloon. The unique features of this balloon may render it the technique of choice for selected pregnant patients with severe mitral stenosis.
A prospective randomized study of 4.1 French catheters utilizing the percutaneous right brachial approach for the diagnosis of coronary artery disease
Authors: Talley J. David , Smith Steven M. , Walton‐Shirley Melissa , Hattel Larry , Szabo Tibor , Godlewski Krystof , Yussman Loan Stahr Zoeann , Palmer Sammie , Vogel Robert , Kupersmith Joel 
Published: March 2007

AbstractTo determine the utility of 4.1 French (F) catheters in diagnosing coronary artery disease, 50 patients were randomized to 4.1F Multipurpose or Judkins catheters utilizing the percutaneous right brachial approach. The randomized 4.1F tip shape catheter completed the procedure in 40% of the patients, and overall the 4.1F catheters completed the catheterization in 72% of the cases. With excessive or prolonged manipulation, the catheters were noted to kink and soften and required replacement for a catheter of similar or larger size. In 28% of the cases, larger F sizes (5F and 6F) were used to complete the procedure. There was 1 (2%) procedural complication. The total procedural success (accounting for all F sizes) without clinical complication was 98%.There was no difference between the 4.1F Judkins or Multipurpose catheter shapes for coronary arteriography by either qualitative or quantitative angiographic analysis. Left ventricular opacification was improved with the 4.1F Pigtail vs. the 4.1 Multipurpose by qualitative angiographic analysis. When the 4.1F angiograms were compared by quantitative angiography in blinded, but not randomized fashion to angiograms performed with 6F Judkins catheters, there was improved opacification of the LAD and diastolic frame of the left ventriculogram with the larger catheter. This difference was not noted with qualitative angiography.This study indicates that 4.1F catheters can be utilized from the right brachial approach for the diagnosis of coronary artery disease, thus avoiding the need for supine bedrest associated with routine femoral artery catheterization while maintaining diagnostic accuracy. © 1992 Wiley‐Liss, Inc.
In‐vivo validation of on‐line and off‐line geometric coronary measurements using insertion of stenosis phantoms in porcine coronary arteries
Authors: Haase Jürgen , Mario Carlo Di , Slager Cornelis J. , van der Giessen Willem J. , Boer Ad Den , de Feyter Pim J. , Reiber Johan H. C. , Verdouw Pieter D. , Serruys Patrick W. 
Published: March 2007

AbstractGeometric coronary artery measurements with the Phillips Digital Cardiac Imaging System (DCI) and the Cardiovascular Angiography Analysis System (CAAS) were validated using percutaneous insertion of radiolucent stenosis phantoms in swine coronary arteries. Angiographic visualization of the stenosis lumens (ϕ 0.5, 0.7, 1.0, 1.4, 1.9 mm) was simultaneously recorded on DCI and cinefilm. The acquisition systems were calibrated by either the diameter of the guiding catheter (catheter CAL) or the isocenter method (iso‐center CAL). Minimal luminal diameters (MLD) obtained with CAAS and DCI on 20 corresponding cineframes were compared with the true phantom diameters (PD). The accuracy of MLD measurements with the CAAS using isocenter CAL was –0.07mm, the precision 0.21 mm (r=0.91; y = 0.30 + 0.79x; SEE = 0.19), with catheter CAL the accuracy was 0.09 mm, the precision 0.23 mm (r=0.89; y = 0.19 + 0.74x; SEE = 0.19). The accuracy of MLD measurements using the DCI with isocenter CAL was 0.08 mm, the precision 0.15 min (r = 0.96; y = 0.08 + 0.86x; SEE = 0.14), with catheter CAL the accuracy was 0.18 mm, the precision 0.21 mm (r=0.92; y = 0.09 + 0.76x; SEE = 0.17). DCI underestimated PD with isocenter CAL (p<0.05) and with catheter CAL (p< 0.001). MLD can be measured with high accuracy, both applying on‐line digital as well as off‐line cineangiographic analysis. The results of digital measurements demonstrate high reliability of the new digital software package.
Double marker ACX II: A new balloon catheter for coronary stent delivery
Authors: Brown R. I. G. , Penn I. M. , Ricci D. R. , Buller C. E. 
Published: March 2007

AbstractWe report our initial experience using the Double Marker ACX II for intracoronary stent deployment in 22 patients, 10 of whom were elective stents and 12 of whom were stented for complications following failed coronary angioplasty. The overall success rate was 95 percent. This dilatation catheter offers advantages which include accurate stent deployment with a double marker system, the option of using a delivery sheath, and the ability to deliver multiple stents with the same balloon catheter.
Angioplasty of tortuous left internal mammary artery: Description of a new technique
Authors: Nakhjavan Fred K. , Kothapalli Srinivasa 
Published: March 2007

AbstractAngioplasty of the distal anastomosis site of a markedly tortuous left internal mammary artery (LIMA)‐anterior descending artery is described. Tortuosity of LIMA was negotiated using the Tracker‐Seeker catheter guidewire system. Angioplasty was then performed using the conventional technique.
Salvage angioplasty: An alternative to high risk surgery for unstable angina?
Authors: Morrison Douglass A. , Barbiere Charles C. , Johnson Randy , Marshall Guillermo , Fullerton David , Hammermeister Karl E. , Grover Frederick L. , Morgan Pamela , Olsen Mary Ann , Stovall James R. , West Elaine , Wolf Dianne 
Published: March 2007

AbstractThis prospective, Human Subjects Committee and Ethics Committee approved investigation was performed to determine if coronary angioplasty (PTCA) might be a reasonable alternative revascularization method for unstable angina patients thought to be at high risk for operative (CABG) mortality. Between March 1990 and October 1991, thirty‐four consecutive patients with medically refractory rest angina were deamed to have high risk of surgical mortality and underwent PTCA without surgical backup. Predicted operative mortality was calculated for each patient based upon the VA Surgical Risk Assessment model. Angioplasty of 52 vessels was attempted. Reduction in lumenal narrowing to < 50% and improved angiographic flow was obtained in 47 vessels. There were four complicating infarctions. One death occurred in the lab, and three patients with unsuccessful angioplasty died within 30 days of pump failure. Relief of angina occurred in 30/34. Thirty patients were discharged home. In follow‐up from 1 to 12 months, there have been 2 late sudden deaths at 4 months and 9 months, 1 death from lung cancer; 4 patients have stable exertional angina; 2 are awaiting heart transplant but are pain free, and one patient who had PTCA during cardiogenic shock from acute myocardial infarction had elective coronary artery bypass surgery. There have been no late myocardial infarctions. The observed angioplasty 30‐day mortality of 11.8% (95% confidence limit 1% to 22.6%) compares favorably with the predicted operative mortality of 23.8% for this group. This prospective but non‐randomized series supports the concept that balloon angioplasty may be a reasonable alternative to surgical intervention in some patients with unstable angina and high risk for surgery. A prospective randomized trial is warranted.
Budd‐chiari syndrome treated successfully by percutaneous transluminal balloon angioplasty: Two cases followed‐up for 6 years
Authors: Chan P. , Lee C. P. , Lee Y. S. 
Published: March 2007

AbstractWe report 2 cases of Budd‐Chiari syndrome that are due to complete membranous obstruction between the junction of the inferior vena cava and the right atrium. Both cases were treated successfully by King's bioptome breakthrough followed by balloon dilatation of the membrane. The patients showed remarkable symptomatic improvement and promising hemodynamic and angiographic results immediately after the procedure and 6 years later. We conclude that balloon angioplasty is a safe and effective method for treating this rare disease in selected cases.
Peripheral stent recovery after failed intracoronary delivery
Authors: Pan Manuel , Medina Alfonso , Romero Miguel , Suárez De Lezo José , Hernández Enrique , Pavlovic Djordje , Melián Francisco , Marrero José , Cabrera José A. 
Published: March 2007

AbstractThe Palmaz‐Schatz stent can be successfully deployed in most patients. However, in a small percentage of instances a systemic embolism of the stent has been reported. In the present article we describe an easy and fast method of stent capture when detachment from the balloon has happened (pulling back the stent‐loaded balloon into the guiding catheter or femoral sheath). In this situation we propose the use of the coronary guide‐wire “as a guide” to capture coaxially the lost stent. This method allows for continuing the procedure without removal of the femoral sheath.
Use of sideholes for diagnostic coronary arteriography by judkins technique in patients with ostial coronary stenosis
Authors: Bourdillon Patrick D. V. 
Published: March 2007

AbstractPatients with ostial left main coronary artery stenosis are at increased risk from diagnostic cardiac catheterization. In order to reduce this risk a modified Judkins coronary catheter with a sidehole 1.5–2 cm from the tip has been used in 6 patients in whom pressure damping was observed after initial use of a standard end‐hole Judkins left coronary catheter. This eliminates damping and allows forceful hand injection with good proximal and distal vessel opacification. It also allows the acquisition of multiple views without the need for catheter removal after each injection, thereby reducing the risk involved in multiple cannulations of a vessel with a potentially unstable lesion at its origin. The technique has also been used for ostial lesions in a right coronary artery and a vein graft.
Endomyocardial biopsy in heterotopic heart transplant recipients via the femoral vein
Authors: Boffa G. M. , Grassi G. , Cocco P. , Razzolini R. , Isabella G. B. , Livi U. , Thiene G. , Chioin R. 
Published: March 2007

AbstractThe results of endomyocardial biopsy (EMB) via the femoral vein in heterotopic heart transplant recipients were retrospectively analyzed and compared with those obtained using the right internal jugular vein approach. A total of 139 EMB were performed in 8 patients using the femoral (35) or the jugular (104) approach. Twenty three (64.7%) of the procedures performed via the femoral vein were part of the yearly hemodynamic and coronary artery study, and 12 (35.3%) constituted a routine postoperative evaluation of the myocardium rejection state in patients with imperviousness of the right internal jugular vein. Comparing the results obtained with the femoral approach, we observed a higher overall success rate (94.3 vs 88.5%, NS) and obtained more samples that were useful for histologic evaluation (95.5 vs 85.9%, NS); with the jugular procedure, the fragments were significatively larger in diameter (1.28 ± 0.55 vs 1.61 ± 0.85 mm, mean ± SD) and in area (1.49 ± 1.16 vs 2.28 ± 2.24 mm2, mean ± SD). No cardiac or local complications were noted when the femoral approach was used, while two attempts to perform biopsy via the jugular vein resulted in obstruction of this vessel. Our data suggest that the femoral venous approach for endomyocardial biopsy in heterotopic heart transplant recipients is a valid alternative to the more commonly used routes.
Pulmonary wedge angiography for prediction of pulmonary vascular disease in down syndrome
Authors: Wilson Nigel J. , Culham J. A. Gordon , Sandor George G. S. , Taylor Glenn P. 
Published: March 2007

AbstractWe performed high resolution pulmonary wedge angiography (PWA) and conventional hemodynamics to predict the reversibility of structural pulmonary vascular disease. Sixty‐one pulmonary wedge angiograms were performed on 41 patients with intracardiac shunts and Down syndrome (median age 8 months). Balloon occlusion wedge angiograms were analyzed for (1) monopedial branches from the distal 10 mm of muscular arteries, (2) capillary blush, (3) tapering indices, and (4) tortuosity. Twenty‐five patients had open lung biopsy, graded by the Heath Edwards classification, and analyzed morphometrically. Pulmonary vascular resistance of ≥6 units was 100% sensitive and 94% specific for Heath Edwards Grade III‐IV. A monopedial count < 3 vessels was 83% sensitive and 100% specific for Heath Edwards Grade III‐IV. Abnormal capillary blush was 83% sensitive and 69% specific for Heath Edwards Grade III‐IV. Tapering indices and tortuosity showed no significant correlation with lung biopsy. A combination of pulmonary vascular resistance <6 units, monopedial count ≥3, and normal capillary blush was 100% sensitive and specific for Heath Edwards Grade 0‐II, and a combination of pulmonary vascular resistance ≥ 6 units, monopedial count < 3, and abnormal capillary blush was 100% sensitive and specific for Heath Edwards Grade III‐IV. Using the 3 criteria, Heath Edwards Grade was accurately predicted in 17 patients. In 4 patients, only 2 criteria were available. Morphometric analysis showed an inverse relationship between the lowest monopedial count and the number of occlusive vessels per cm of tissue, r = −0.74, p < 0.001. Arteries showing intimal and/or medial thickening causing >90% luminal narrowing were scored as “occlusive.” These results show that when the hemodynamic and pulmonary wedge angiography data are concordant, the structural changes of pulmonary vascular disease can be accurately predicted and lung biopsy may be avoided.
Continuous cardiac output monitoring by the Fick method
Authors: Baxley William A. , Cavender J. Bradley , Knoblock John 
Published: March 2007

AbstractCurrent methods for longitudinal assessment of cardiac output in severely ill patients are intermittent only and in many respects appear unsatisfactory. We have developed a computerized on‐line system for continuous Fick cardiac output monitoring, utilizing fiberoptic arterial and pulmonary arterial probes with a metabolic analyzer for VO2. In 15 patients, cardiac output ranged 1.9–6.8 L/min and 12 were within 5% of thermodilution values. Continuous output monitoring during interventions in two patients (saline infusion and coronary angioplasty) illustrate the utility of the technique. Two additional patients had unsatisfactory VO2 data due to low airflow velocity. The results of this pilot study suggest that cardiac output monitoring by the Fick method may have clinical and investigational uses in intensive care units and during cardiac catheterization or surgical procedures. © 1993 Wiley‐Liss, Inc.
Effects of intracoronary injection of acetylcholine on coronary collateral circulation
Authors: Yamanishi Kazuto , Fujita Masatoshi , Miwa Kunihisa , Igawa Akihiko 
Published: March 2007

AbstractTo clarify the effect of intracoronary injection of acetylcholine on coronary collateral circulation, acetylcholine (20 and 50 μg) was injected directly into the donor artery of 5 patients with rest angina who had angiographically demonstrable collateral channels. Coronary spasm was defined as severe vasoconstriction (≥ 90% of luminal diameter) with chest pain and/or ischemic ST‐segment changes. The intracoronary injection of acetylcholine induced spasm in all the 5 patients. The site of spasm was collateral vessels in 3, and the recipient coronary artery in 2 of the 5 patients. The spasm resolved spontaneously without administration of nitroglycerin. The contralateral intracoronary injection of acetylcholine also induced diffuse coronary spasm in 4 patients. These findings indicate that collateral vessels and recipient coronary arteries of the collateral circulation are susceptible to acetylcholine. Impaired relaxation and vasospastic responses to acetylcholine presumably due to endothelial dysfunction in the collateral and recipient coronary vessels may explain, at least in part, myocardial ischemia in patients with a well‐developed collateral circulation. © 1993 Wiley‐Liss, Inc.
Percutaneous transvenous mitral commissurotomy using the inoue balloon catheter
Authors: Inoue Kanji , Feldman Ted 
Published: March 2007

AbstractSince its inception in 1982, percutaneous transvenous mitral commissurotomy (PTMC) with the Inoue balloon catheter has gained increasingly wide use internationally. The procedure is technically successful in over 90% of patients, and the long‐term durability of commissurotomy is excellent in those with pliable mitral valve leaflets and minimally deformed submitral apparatus. PTMC offers an alternative to patients previously not considered candidates for surgery, where no alternative had existed in the past. After transseptal puncture, PTMC using the Inoue balloon can be accomplished easily in the majority of patients. In comparison to double balloon mitral valvotomy, the postdilatation valve area is similar, the incidence of mitral regurgitation is not different, and the fluoroscopic and procedure time are markedly shorter. While patients with little valve deformity are excellent candidates for this procedure, and those not considered candidates for surgical therapy are also easily defined, selection of patients for balloon dilatation among those with significant valve deformity who are otherwise candidates for valve replacement therapy remains a challenging problem. © 1993 Wiley‐Liss, Inc.
Percutaneous double balloon valvuloplasty for stenosis of porcine bioprostheses in the tricuspid valve position: A report of 2 cases
Authors: Slama Michel S. , Drieu Luc H. , Malergue Marie‐Christine , Dibie Alain , Temkine Jacques , Sebag Claude , Lecompte Yves , Laborde Fraņois , Motté Gilbert 
Published: March 2007

AbstractThe feasibility and results of percutaneous double balloon valvuloplasty were evaluated in 2 patients with stenosis of porcine bioprostheses in the tricuspid valve position. The procedures were performed with a Trefoil 3 × 10 and a 15 mm balloon. Long inflations (4 and 3 minutes) were well tolerated. A significant immediate increase in the valve area, without significant valvular regurgitation, was achieved in both cases, from 0,65 to 1,15 cm2 in case 1 and from 0,9 to 1,65 cm2 in case 2. Both patients required valve replacement during the follow‐up, at 14 and 21 months. There was no restenosis, but echocardiography showed right atrial thrombosis in case 1. Progressive restenosis with peripheral edema and increase of the mean doppler gradient occurred in case 2.The procedure is feasible, safe, and well tolerated. It provides significant immediate hemodynamic improvement, but it should be considered as a palliative technique since a normal valve area can not usually be obtained and a restenosis is likely to occur at midterm follow‐up. © 1993 Wiley‐Liss, Inc.
Successful percutaneous mitral balloon commissurotomy in a patient with a previous mitral valve repair
Authors: Skudicky Daniel G. , Skoularigis John , Essop Mohammed R. , Rothlisberger Christian , Sareli Pinhas 
Published: March 2007

AbstractA case of successful percutaneous mitral balloon commissurotomy (PMBC) in a patient who had undergone mitral valve repair with a Carpentier ring 6 years earlier is described. © 1993 Wiley‐Liss, Inc.
A unique scenario for coronary atherectomy
Authors: Franzen Damian , Höpp Hans Wilhelm , Arnold Georg , Winter Ulrich , Hilger Hans Hermann 
Published: March 2007

AbstractDespite several attempts, balloon angioplasty of a slightly eccentric stenotic lesion in the proximal right coronary artery failed to result in any increase of luminal diameter. Following disruption and partial removal of a fibrous atherosclerotic cap using directional atherectomy, subsequent balloon angioplasty was highly successful. © 1993 Wiley‐Liss, Inc.
Use of angioplasty in the management of complicated perioperative infarction following bypass surgery
Authors: Dorogy Mark E. , Highfill William T. , Davis Richard C. 
Published: March 2007

AbstractIschemic complications in the perioperative period following bypass surgery adversely affect both short‐ and long‐term prognosis. Coronary angioplasty was successfully performed in 2 patients sustaining complicated postoperative myocardial infarctions with resolution of angina and restoration of hemodynamic stability. These cases illustrate that angioplasty can be done safely in such patients and may favorably alter short‐term outcome. © 1993 Wiley‐Liss, Inc.
Nineteen years survival after occlusion of the left main coronary artery by virtue of an anomalous septal branch
Authors: Vliegen Hubert W. , Cats Volkert Manger 
Published: March 2007

AbstractThis case presents a patient who survived 19 years with an occluded left main coronary artery as a result of collateral flow to the anterior wall from an anomalous septal branch arising from the right coronary artery. The case illustrates that minor variations in coronary anatomy may have important effects on the prognosis of a patient. © 1993 Wiley‐Liss, Inc.
Catheter lavage and drainage of pneumococcal pericarditis
Authors: Thavendrarajah Vasanthy , Ghia Pradeep S. , Kozinn Wesley , Little Thomas 
Published: March 2007

AbstractAn 88 year old woman with streptococcal pneumonia developed purulent pericarditis and cardiac tamponade despite treatment with antibiotics. Percutaneous pericardial drainage was effected with a 6 French pigtail catheter inserted via the subxyphoid approach. Catheter drainage was continued for 7 days in conjunction with systemic antibiotics. Catheter patency was maintained with antibiotic lavage.Immediate hemodynamic improvement followed the initial pericardial drainage. Fever, leukocytosis, and sepsis resolved during the course of therapy. The patient recovered fully from the closed space bacterial infection without additional surgical drainage. There has been no recurrence of streptococcal infection and no echocardiographic evidence of recurrent pericardial effusion after 3 months of follow‐up.Indwelling catheter drainage combined with antibiotics may be an effective substitute for surgical drainage in the treatment of streptococcal pericarditis. © 1993 Wiley‐Liss, Inc.
Catheter atherectomy of intimal fibroplasia of the common iliac artery
Authors: Mandke Jyotsna V. , Sharma Satyavan , Phatak Anuradha M. , Sanzgiri Vasundhara P. , Loya Yunus S. , Desai Dhruman M. 
Published: March 2007

AbstractAn 18‐year‐old woman presented with renovascular hypertension and left lower extremity claudication. Aorto‐iliac angiography showed stenotic lesions in the left renal artery and the left common iliac artery. For uncontrolled hypertension, nephrectomy was performed and histopathology of the renal artery showed intimal fibroplasia, an uncommon type of fibromuscular dysplasia. The left common iliac artery lesions were treated with directional atherectomy, which produced excellent immediate angiographic and symptomatic improvement. © 1993 Wiiey‐Liss, Inc.