bluuebunny/crossref_metadata_2025_split huggingface dataset:
Comparison of coronary arteriographic and left ventriculographic findings in patients with single, double, and triple vessel disease and angina pectoris
Authors: Vieweg W. V. R. , Warren S. E. , Alpert Joseph S. , Hagan A. D. 
Published: March 2007

AbstractThe distribution and severity of coronary artery disease and degree of left ventricular dysfunction are described in 500 patients with single (103), double (119), and triple (278) vessel disease and angina pectoris. The coronary arterial patterns were divided into right (360), mixed (89), and left (51) systems, depending upon the blood supply to the inferior surface of the left ventricle. The following relationships were noted:

Coronary arterial patterns of right, mixed, and left systems do not influence the presence, distribution, or severity of coronary arterial lesions among patients with single, double, and triple vessel disease and angina pectoris.
Analysis of the distribution of lesions among patients with single and double vessel disease reveals that the circumflex/obtuse marginal arteries contribute least of the three major coronary arteries to angina pectoris.
Lesions of 70–90% reduction in coronary arterial luminal diameter are the most common, and 90–99% lesions are the least common. The latter are least stable among patients with both coronary artery disease and angina pectoris.
Quantitatively there is progression of both coronary artery disease and left ventricular dysfunction as one moves from single to double and then to triple vessel disease. However, the pattern of coronary arterial lesions (50–70%, 70–90%, 90–99%, and 100% reduction of luminal diameter) and the pattern of left ventricular dyssynergy (hypokinesis, akinesis, and dyskinesis) are similar among the patients with single, double, and triple vessel disease and angina pectoris.
Prevention of contrast‐induced bradycardia during coronary angiography
Authors: Richards Kent L. , Browning J. D. , Hoekenga David E. 
Published: March 2007

AbstractA double‐blind study of 90 patients undergoing coronary angiography was performed to determine the safety and efficacy of 0.6 mg atropine sulfate in preventing contrastinduced bradycardia. Coronary angiography performed using the Sones technique resulted in ventricular pauses of greater than 2 seconds in 3 of 49 patients (6%) who received prophylactic atropine and 20 of 41 patients (49%) receiving placebo. Though the pauses were usually due to atrial asystole, 26% of those with greater than 2 second pauses did so because of transient complete heart block. Prophylactic atropine did increase resting heart rate but did not cause other arrhythmias or increase the frequency of angina pectoris despite the presence of severe coronary disease. Our data indicate that contrast‐induced asystole is very common, cannot be predicted by consideration of “precatheterization data,” and can be prevented effectively and safely by use of prophylactic atropine sulfate.
Delayed post‐cardiac‐surgery tamponade producing localized right atrial compression
Authors: Marx Peter , Jaffe Carl , Laks Hillel , Son Steven Wolf 
Published: March 2007

AbstractA patient with dyspnea and lethargy 19 days after aortic valve replacement was admitted to the hospital with physical signs suggesting cardiac tamponade. Initial echocardiogram was unhelpful, but Swan‐Ganz catheterizatlon showed a gradient in diastole between the right atrium and ventricle. Anglography and repeat echocardlography then showed a mass compressing the right atrium, which was confirmed at surgery.
Outpatient cardiac catheterization and coronary angiography
Authors: Mahrer Peter R. , Eshoo Norman 
Published: March 2007

AbstractThe cost of and hospitalization required for cardiac catheterization led us to evaluate this procedure in 308 adult outpatients. Patients were scheduled on the basis of stability of symptoms. Two hundred eighty‐eight underwent left heart catheterizations and coronary arteriography. Ninety‐five percent of the procedures were performed by the percutaneous technique. Fifty patients had normal studies and 30 patients had congenital or valvular disease. Two hundred twenty‐eight patients had significant coronary artery disease, 85 patients had triple vessel disease, and 45 patients had left main coronary artery disease. There were six significant complications: one death; two myocardial infarctions; one air embolism, and two patients with hematomas. Three of the complications were in patients with left main disease. Only two of the complications can be ascribed to the outpatient nature of the procedure. The complication rate is comparable to that reported in the literature. Fifteen hundred subsequent cases were studied as outpatients, with a very low mortality and morbidity. It is concluded that cardiac catheterization can be performed on an outpatient basis with safety comparable to inpatient studies, and at a great economic savings.
Atrial fibrillation in congestive cardiomyopathy: Echocardiographic and hemodynamic correlates
Authors: Mann Bruce , Ray Richard , Goldberger Ary L. , Shabetai Ralph , Green Curtis , Kelley Michael 
Published: March 2007

AbstractPrevious studies have suggested an unexpectedly low incidence of atrial fibrillation in patients with congestive cardiomyopathy. To further investigate the incidence of chronic atrial fibrillation in these patients and its relationship to left atrial dimension and pressure, we retrospectively examined M‐mode echocardiographic and cardiac catheterization data from 54 patients with idiopathic (n = 29) and ischemic (n = 25) congestive cardiomyopathy. The incidence of atrial fibrillation (17%) was surprisingly low given the degree of left atrial enlargement (51 ± 5 mm; mean ± SD) and left atrial hypertension (19 ± 8 mm Hg). In addition, there were no significant differences in left atrial pressure or left atrial dimension between those congestive cardiomyopathy patients in sinus rhythm and those in atrial fibrillation, nor was there a higher incidence of secondary mitral regurgitation in patients in atrial fibrillation.Comparisons were also made between congestive cardiomyopathy patients and 21 patients with primary mitral valve disease and atrial fibrillation. Left atrial pressure was not significantly different between these groups. However, the mean left atrial dimension of the patients with mitral valve disease (56 ± 8 mm) was greater (P < 0.01) than that of patients with idiopathic (51 ± 6 mm) or ischemic (50 ± 4 mm) cardiomyopathy in sinus rhythm and also greater (P = 0.07) than left atrial dimension (51 ± 6 mm) of congestive cardiomyopathy patients in atrial fibrillation. Furthermore, massive enlargement of the left atrium (greater than 60 mm) was a common feature of mitral valve disease (33% incidence) but occurred only rarely in congestive car‐diomyopathy (5% incidence).We conclude that while left atrial volume and pressure loads may be important contributors to the pathogenesis of atrial fibrillation, these factors are not sufficient to produce the arrhythmia in most patients with congestive cardiomyopathy. Other variables such as disease duration or the degree of atrial fibrosis or inflammation may also be important in determining which patients with left atrial enlargement will develop atrial fibrillation. Furthermore, massive left atrial enlargement (left atrial dimension > 60 mm) is rarely associated with ischemic or idiopathic congestive car‐diomyopathy and suggests underlying primary mitral valve disease.
En face demonstration of a prosthetic mitral valve orifice during left ventriculography
Authors: Smuckler Alan L. , Kahl Frederic R. 
Published: March 2007

AbstractDirect demonstration of the orifice of a prosthetic mitral valve was obtained using an en face projection of the mitral valve during left ventriculography. With a dimensional reference and planimetry, the mitral valve area was directly measured. The value for the mitral valve area derived from en face demonstration of the mitral valve during left ventriculography agreed well with valve area estimates obtained by the Gorlin and Gorlin formula and by direct examination of the surgical specimen.
Pseudo complications of cardiac catheterization: Update
Authors: Hildner Frank J. , Javier Roger P. , Tolentino Alfonso , Samet Philip 
Published: March 2007

AbstractThis prospective study was performed to determine whether complications that occur immediately before or after the time of scheduled catheterization are as much disease‐related as procedure‐related. During 24 months all complications associated with 1,606 diagnostic cardiac catheterizations were recorded if they occurred from 24 hours before the time the procedure was scheduled to 72 hours later, longer if complications were clearly procedure‐related. Pseudo complications are spontaneous medical or surgical incidents that occur during the 24‐hour period before catheterization is scheduled to be performed. Procedure‐related complications are incidents that occur during or after the catheterization procedure. There were 13 (0.81% ) procedure‐related complications but no deaths. There were 13 (0.81% ) pseudo complications including 4 (0.24% ) deaths. All complications were similar in nature except for 3 instances of vascular injury, which were procedure‐related. Pseudo complications occur as commonly as procedure‐related complications and at times are more severe. Complications occurring before catheterization are related to the underlying disease process and not medical intervention. It is likely that similar disease‐caused incidents occur after a catheterization and are not necessarily procedure‐related.
Aortic implantation of the anomalous left coronary artery from the pulmonary artery: One‐year angiographic follow‐up
Authors: Solana Luis G. , Massumi Ali , Mathur Virendra S. , De Castro Carlos M. , Garcia Efrain , Hall Robert J. , Cooley Denton A. 
Published: March 2007

AbstractSurgical aortic reimplantation of the anomalous origin of the left coronary artery from the pulmonary artery in a 16‐year‐old boy is reported. One‐year angiographic follow‐up showed patency of the reimplanted coronary ostium, normalization of left ventricular segmental wall motion and volume, and reduction in the caliber of the right coronary artery.This is the surgical correction procedure of choice in anatomically feasible cases.
Somatotype and idiopathic mitral valve prolapse
Authors: Zema Michael J. , Chiaramida Salvatore , Defilipp Gary J. , Goldman Mitchell A. , Pizzarello Roy A. 
Published: March 2007

AbstractRecords from 18 subjects with angiographic idiopathic mitral valve prolapse, 28 subjects with merely exaggerated posterior mitral leaflet systolic bulging, and 100 subjects with normal hemodynamic and angiographic findings were compared with regard to age, sex, height, weight, ponderal index (height/3 weight), auscultatory and echocardiographic abnormalities. Chest x‐ray films available for subjects with mitral valve prolapse were reviewed.The ponderal index of subjects with mitral valve prolapse (13.1 ± 0.8) differed from that of subjects with merely exaggerated posterior mitral leaflet systolic bulging (12.6 ± 0.7) (P < 0.02) and from that of subjects without angiographic abnormality (12.3 ± 0.8) (P < 0.001). The three groups differed in ponderal index when equated statistically for age, height, weight, and sex (P < 0.001). Among mitral valve prolapse patients, an asthenic habitus occurred independent of the presence of thoracic skeletal abnormalities.
Right ventricular aneurysm: Clinical and laboratory features
Authors: Walker Steven S. , Binkley Philip F. , Neiger David , Fulkerson Phillip K. , Bush Charles A. , Unverferth Donald V. , Leier Carl V. 
Published: March 2007

AbstractA 45‐year‐old woman presented with dyspnea on exertion, two episodes of ventricular tachycardia, a prominent left parasternal impulse, and an unusual cardiac silhouette on chest roentgenogram. Echocardiography and cardiac catheterization demonstrated the presence of a large right ventricular aneurysm. The clinical and laboratory features of the right ventricular aneurysm are discussed.
The brachial artery method to transluminal coronary angioplasty
Authors: Dorros Gerald , Stertzer Simon H. , Bruno Michael S. , Kaltenbach Martin , Myler Richard K. , Spring Donald A. 
Published: March 2007

AbstractThe development of a brachial artery guiding catheter for (percutaneous) trans‐luminal coronary angioplasty is described. Three‐hundred angioplasty procedures were attempted with 196 (65%) via the branchial and 104 (35%) via the femoral artery. The coronary stenosis was crossed in 202 attempts (67%); in 138 via the brachial (70%) and 64 via the femoral artery (62%). A successful angioplasty occurred in 117 via the brachial (85%) and in 50 via the femoral artery (78%). Successful angioplasty of the left anterior descending artery was equally effective with either technique. Successful angioplasty of the right coronary artery was more difficult (P < 0.05) using the femoral artery. An unsuccessful angioplasty with one technique was occasionally overcome by use of the other technique. No brachial artery complications were encountered. The brachial method to transluminal coronary angioplasty is an acceptable and complementary alternative to the femoral technique. Those laboratories contemplating percutaneous transluminal coronary angioplasty may desire to utilize both approaches.
Stress myocardial imaging in patients with mitral valve prolapse: Evidence of a perfusion abnormality
Authors: Butman Samuel , Chandraratna P. A. N. , Milne Norah , Olson Harold , Lyons Kenneth , Aronow Wilbert S. 
Published: March 2007

AbstractTwenty‐four patients with mitral valve prolapse underwent cardiac catheterization, exercise testing, and exercise 201thallium scintigraphy. Of 10 patients with coronary artery disease, six had abnormal scintigrams. Two of these six had exercise‐induced reversible defects, two had defects that persisted during redistribution, and two had both reversible and persistent defects. Of 14 patients with normal coronary arteries, five had negative scintigrams. Of the remaining nine patients, two had exercise‐induced defects, and seven (50%) had defects involving the inferior or posterior wall that persisted during redistribution. Possible mechanisms for this latter finding are discussed. In contrast to previous reports, exercise 201thallium scintigraphy was not entirely successful in identifying patients with coronary artery disease in our patients with mitral valve prolapse.
Determinants of total body oxygen consumption in adults undergoing cardiac catheterization
Authors: Crocker Roderick H. , Ockene Ira S. , Alpert Joseph S. , Pape Linda A. , Dalen James E. , Lange Nicholas 
Published: March 2007

AbstractOxygen consumption was measured in 500 patients (151 F, 349 M, ages 12–84 yr.) undergoing routine cardiac catheterization. Sex, age, and heart rate were found to be the strongest predictors of oxygen consumption index (OCI). Males had higher OCI values than females at any age. Older patients of both sexes had lower OCI values than younger patients. Heart rate correlated directly with OCI. Treatment with pro‐pranolol correlated inversely with OCI. However, after correction for heart rate, there were no significant differences in OCI values between propranolol treated and non‐treated patients. A linear regression equation was developed using combinations of variables to predict OCI, and tables are presented for predicting OCI in those patients in whom this variable cannot be directly measured.
The role of coronary thrombosis in myocardial infarction: Further evidence shown by intracoronary thrombolysis with streptokinase
Authors: Gagnon R. M. , Morissette M. , Bensimon H. , Beaudet R. , Poirier N. , Noel C. , Presant S. , Lemire J. 
Published: March 2007

AbstractMyocardial infarction is usually caused by a thrombus occurring on a significant coronary lesion.A 60‐year‐old male was admitted with an acute evolving anterior myocardial infarction. Three hours after the beginning of chest pain, the electrocardiogram showed ST‐segment elevation in the anterior and lateral leads which persisted despite intravenous nitroglycerin (100 mcg/min). One hour later, an angiogram showed complete obstruction at the origin of the left anterior descending artery (LAD). After intracoronary streptokinase (250,000 units) the LAD opened and a 90% obstruction was seen at its origin. However, an anterior myocardial infarction occurred. One month later, an angiogram showed a slight irregularity at the origin of the LAD.Thus, this case demonstrates that (1) a myocardial infarction may occur with a near normal coronary artery, and (2) a thrombus may occur at the site of a slight coronary irregularity.
Angiographic demonstration of coronary sinus thrombosis: A potential consequence of trauma to the coronary sinus
Authors: Hazan Marc B. , Byrnes Douglas A. , Elmquist Thomas H. , Mazzara James T. 
Published: March 2007

AbstractAbnormalities of the coronary sinus are rarely encountered. A case is presented demonstrating for the first time the angiographic appearance of coronary sinus thrombosis. This may have been the result of surgical trauma during mitral valve replacement or inadvertent cannulation of the coronary sinus during right heart catheterization or pacemaker insertion. Although the clinical significance of coronary sinus thrombosis is uncertain, obstruction of coronary sinus blood flow should not be deleterious because of multiple anastomoses between the coronary sinus system and the anterior cardiac veins. Difficulty in cannulating the coronary sinus for physiologic studies should suggest the possibility of coronary sinus thrombosis, especially in patients who have undergone mitral valve replacement. This may be confirmed by observing the venous phase of selective left coronary arteriography. Finally, coronary sinus thrombosis may be important as a source of pulmonary emboli. The prevalence of this serious complication requires further study.
Long‐term survival following cardiac rupture with subsequent development of left ventricular pseudoaneurysm
Authors: Kolibash Albert J. , Magorien Raymond D. , Bush Charles A. , Vasko John S. 
Published: March 2007

AbstractThis report describes a patient who survived rupture of the left ventricular free wall following a myocardial infarction and who then subsequently went on to develop a pseudoaneurysm. The rupture became clinically recognized when the patient developed cardiac tamponade. A large hemopericardium was evacuated by performing a thoracotomy and a pericardiotomy. Although not evident at the time of the initial catheterization, a pseudoaneurysm developed over the ensuing months. The aneurysm was initially recognized by radionuclide angiography and confirmed by left ventricular angiography at a second cardiac catheterization. The aneurysm was successfully resected, and the patient was alive and functioning normally 18 months after rupture and 12 months after aneurysmectomy.
Transarterial pulmonary venous wedge arteriography in pulmonary atresia, ventricular septal defect, and intact atrial septum
Authors: Momma Kazuo , Takao Atsuyoshi , Shimizu Shuji , Satomi Gengi 
Published: March 2007

AbstractTransarterial pulmonary venous wedge arteriography was performed in four cases of pulmonary atresia (PA), ventricular septal defect (VSD), and intact atrial septum. In two cases, only the left pulmonary artery was visualized by selective injection to the patent ductus arteriosus (PDA) or Blalock‐Taussig anastomosis (B‐T shunt), and the right pulmonary artery was opacified by transarterial retrograde pulmonary arteriography. In two other cases, with nonfunctioning B‐T shunt, the pulmonary artery was not opacified by either aortography nor by injection into the B‐T shunt. Transarterial pulmonary vein wedge arteriography visualized a confluent pulmonary artery. Transarterial pulmonary vein wedge arteriography was a useful and safe procedure for opacifying the pulmonary artery that could not be visualized antegradely in VSD, PA, and intact atrial septum.
A safe and rapid technique for retrograde catheterization of the left ventricle in aortic stenosis
Authors: Laskey Warren K. , Untereker William J. , Kusiak Victoria , Martin Jack L. , Groh William C. , Hirshfeld John W. 
Published: March 2007

AbstractThe present report describes our experience in 82 patients with a pigtail‐straight guide wire system for crossing stenotic aortic valves. The technique was successful in 95% of all attempts and the average fluoroscopic time was three minutes. There were no major complications of the procedure. The technique allowed for consistent, high quality ventriculograms in 73 patients enabling us to define the severity of concomitant mitral regurgitation in 27 of the patients, as well as a preoperative ejection fraction in all 73 patients. We conclude that the technique as described is a safe and efficient way to obtain both hemodynamic and angiographic information at minimum risk in patients with severe aortic stenosis.
Pulsed doppler echocardiographic detection of mitral regurgitation in mitral valve prolapse: Correlation with cardiac arrhythmias
Authors: Shah Abid A. , Quinones Miguel A. , Waggoner Alan D. , Barndt Robert , Miller Richard R. 
Published: March 2007

AbstractThe incidence of mitral regurgitation in mitral valve prolapse was studied retrospectively in 88 consecutive hospital based patients with mitral valve prolapse using pulsed Doppler echocardiography. Pulsed Doppler findings of turbulence in the left atrium were predictive of angiographic findings of mitral regurgitation in 31 patients. On 24‐hr Holter monitoring, patients with mitral valve prolapse and mitral insufficiency had a higher prevalence of ventricular arrhythmias than patients without mitral insufficiency (61 vs 22%; P < 0.02). Detection of mitral insufficiency identified individuals with mitral valve prolapse who are at higher risk of ventricular arrhythmias.
Myocardial ischemia in patients with fixed occlusive coronary artery disease secondary to vasospasm in the “normal” vessel
Authors: Mautner Richard K. 
Published: March 2007

AbstractSeven patients with significant fixed occlusive coronary artery disease had coronary artery spasm in a “normal” vessel. All patients had one or more episodes of rest angina and six had exertional angina as well. Four sustained previous myocardial infarction. During spontaneous angina, five patients had ST‐segment elevation in the inferior electrocardiographic leads. One patient had ST‐segment elevation in anterior leads. During angiography, spasm was demonstrated in the right coronary artery in three patients and in the left anterior descending coronary artery in one patient. This study emphasizes the interaction of fixed and vasospastic disease and has strong implications concerning the management of patients with ischemic heart disease.
Transluminal coronary angioplasty complicated by coronary artery perforation
Authors: Kimbiris Demetrios , Iskandrian Abdulmassih S. , Goel Inder , Bemis Charles E. , Gehl Leonard , Owens John , Segal Bernard L. 
Published: March 2007

AbstractTransluminal coronary angioplasty may be associated with complications resulting from the dilatation catheter and inflation of the balloon. The most common complications are dissection, occlusion, and coronary spasm. We report an unusual complication of coronary artery perforation by the dilatation catheter resulting in acute pericardial tamponade. The complication was immediately recognized and confirmed by dye injection and hemodynamic measurements. Pericardiocentesis was performed, followed by successful coronary bypass surgery. The reasons for the perforation are unclear. We postulate that the acute angle of the perforated vessel was an important factor for this complication. The importance of a standby cardiac surgeon and operating room is emphasized.