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Biomedical subjects

B F Waller

Publications and source records attributed to B F Waller.

At least 55 records · Page 3Linked to original sources
PubMed1993

Histologic analysis of directional coronary atherectomy samples. A review of findings and their clinical relevance.

Histologic analysis of atherectomy samples from > 400 patients who received directional coronary atherectomy at 3 separate institutions disclosed 2 major categories of tissue: atherosclerotic plaque (with or without thrombus) and intimal proliferation (hyperplasia, with or without thrombus). The predominant tissue type in atherectomy samples from native, primary, or de novo coronary artery stenoses was atherosclerotic plaque. The predominant tissue type in atherectomy samples from restenosis lesions (prior balloon angioplasty, atherectomy, or both) was intimal proliferation with variable amounts of atherosclerotic plaques (with or without thrombus). Deep vessel wall components (media, adventitia) were identified at varying frequencies. The clinical relevance of atherectomy tissue is reviewed.

Atherectomy, Coronary↗
PubMed1993

Anatomy, histology, and pathology of the cardiac conduction system: Part I.

Normal anatomic and histologic features of the sinus node, atrial myocardium, and interatrial conduction of the cardiac impulse are reviewed. The controversy surrounding atrial conduction via specialized atrial cells versus specific internodal tracts (between sinus and atrioventricular nodes) is discussed.

Age Factors↗
PubMed1993

Anatomy, histology, and pathology of the cardiac conduction system: Part II.

Normal anatomic and histologic features of the atrioventricular junction (transitional cell zone, atrioventricular node, penetrating portion of bundle) and the bifurcation of the penetrating portion into bundle branches are reviewed. Terminal ventricular Purkinje fibers are also discussed.

Atrioventricular Node↗
PubMed1993

Anatomy, histology, and pathology of the cardiac conduction system--Part III.

The cardiac conduction system may be affected by various pathologic changes. Some of these changes are general and affect the nonconduction system tissues of the heart (atrophy, fibrosis, necrosis, segment deposition, mineral) and others are more localized to the conduction system (Lev and Lenegre disease). Pathologic conditions associated with atrial, junctional, and ventricular arrhythmias are reviewed.

Arrhythmias, Cardiac↗
PubMed1993

Anatomy, histology, and pathology of the cardiac conduction system--Part V.

Although morphologic findings in many of the cardiac arrhythmias of acute and chronic disease have been elusive, the correlates of heart block (particularly atrioventricular block) are abundant. Pathologic features of sinoatrial, atrioventricular, and bundle-branch block are reviewed. Lev and Lenegre diseases (idiopathic bilateral bundle-branch fibrosis) are also reviewed.

Coronary Artery Disease↗
PubMed1993

Anatomy, histology, and pathology of the cardiac conduction system--Part VI.

Various pathologic conditions producing atrioventricular block are reviewed. Calcific atrioventricular block (aortic stenosis, mitral valve annular calcium), active infective endocarditis ("ring" abscess), acute and healed myocarditis, various collagen-vascular diseases, amyloidosis, and tumors are reviewed as causes of atrioventricular block. Various diseases producing bundle-branch block are also discussed.

Heart Block↗
PubMed1993

Traumatic rupture of an aortic ulcerative atherosclerotic plaque producing aortic dissection: a complication of interscapular back blows used to dislodge objects from the esophagus.

Penetrating atherosclerotic ulcer of the aorta is a rare entity which usually occurs in the descending thoracic aorta. Herein, we report an unusual case of penetrating aortic ulcer which ruptured into the mediastinum. Interscapular back blows were performed on our patient in an attempt to dislodge an aspirin which she thought was lodged in her esophagus. Unlike previously reported cases of this entity, the penetrating aortic ulcer in our patient was located in the distal thoracic ascending aorta. Diagnosis of penetrating aortic ulcer can be made by utilizing aortography, contiguous dynamic contrast-enhanced computed tomography or magnetic resonance imaging. Treatment consists of adjunctive medical therapy until surgery can be performed.

Aged↗
PubMed1992

Morphologic aspects of pericardial heart disease: Part I.

Pericardial heart disease is a common entity at necropsy. Frequently, focal areas of fibrin deposits or parietal-visceral pericardial adhesion are observed at necropsy without previous clinical evidence of pericardial dysfunction. Some of these instances are related to clinically silent acute or healed myocardial infarction, but the vast majority of cases are incidental (idiopathic) findings. The purpose of this review is to summarize various morphologic responses of the pericardium and to provide an etiologic framework for these responses. Part I will review general morphologic responses of pericardial layers.

Heart Diseases↗
PubMed1992

Morphologic aspects of pericardial heart disease: Part II.

Pericardial heart disease is a common entity at necropsy. Frequently, focal areas of fibrin deposits or parietal-visceral pericardial adhesion are observed at necropsy without previous clinical evidence of pericardial dysfunction. Some of these instances are related to clinically silent acute or healed myocardial infarction but the vast majority of cases are incidental (idiopathic) findings. The purpose of this review is to summarize various morphologic responses of the pericardium and to provide an etiologic framework for these responses. Part II will review specific morphologic responses of pericardial layers to selected diseases.

Cardiac Surgical Procedures↗
PubMed1992

Anatomy, histology, and pathology of coronary arteries: a review relevant to new interventional and imaging techniques--Part I.

In the last 15 years, intense interest has focused on various interventional pharmacologic and mechanical forms of therapy for the treatment of atherosclerosis coronary artery disease. Many techniques and devices (dilating balloons, perfusion catheters, thermal probes and balloons, lasers, atherectomy devices, stents, intravascular ultrasound) have been used or are under study for future use. Many of these techniques and devices require an understanding of histologic and pathologic features of the coronary arteries and diseases which affect them. This article reviews selective areas of anatomy, histology, and pathology relevant to the use of various new interventional techniques. Part I of this review will focus on anatomic aspects of the epicardial coronary artery system, coronary arterial distribution, myocardial supply, and histologic features of the normal coronary artery.

Angioplasty, Balloon, Coronary↗
PubMed1992

Anatomy, histology, and pathology of coronary arteries: a review relevant to new interventional and imaging techniques--Part II.

In the last 15 years, intense interest has focused on various interventional, pharmacologic, and mechanical forms of therapy for the treatment of atherosclerotic coronary artery disease. Many techniques and devices (dilating balloons, perfusion catheters, thermal probes and balloons, lasers, atherectomy devices, stents, intravascular ultrasound) have been used or are under study for future use. Many of these techniques and devices require an understanding of histologic and pathologic features of the coronary arteries and diseases which affect them. This article reviews selective areas of anatomy, histology, and pathology relevant to the use of various new interventional techniques. Part II of this four-part review will focus on aging changes seen in the epicardial coronary arteries and will review selected features of atherosclerotic plaque, including fissure and topography.

Angioplasty, Balloon, Coronary↗
PubMed1992

Anatomy, histology, and pathology of coronary arteries: a review relevant to new interventional and imaging techniques--Part III.

In the last 15 years, intense interest has focused on various interventional, pharmacologic, and mechanical forms of therapy for the treatment of atherosclerotic coronary artery disease. Many techniques and devices (dilating balloons, perfusion catheters, thermal probes and balloons, lasers, atherectomy devices, stents, intravascular ultrasound) have been used or are under study for future use. Many of these techniques and devices require an understanding of histologic and pathologic features of the coronary arteries and diseases which affect them. This article reviews selective areas of anatomy, histology, and pathology relevant to the use of various new interventional techniques. Part III of this four-part review focuses on eccentric and concentric plaques, formation of coronary thrombus, and status of the "infarct artery" after mechanical and pharmacologic forms of acute reperfusion therapy.

Angioplasty, Balloon, Coronary↗
PubMed1992

Anatomy, histology, and pathology of coronary arteries: a review relevant to new interventional and imaging techniques--Part IV.

In the last 15 years, intense interest has focused on various interventional pharmacologic and mechanical forms of therapy for the treatment of atherosclerosis coronary artery disease. Many techniques and devices (dilating balloons, perfusion catheters, thermal probes and balloons, lasers, atherectomy devices, stents, intravascular ultrasound) have been used or are under study for future use. Many of these techniques and devices require an understanding of histologic and pathologic features of the coronary arteries and diseases which affect them. This article reviews selective areas of anatomy, histology, and pathology relevant to the use of various new interventional techniques. Part IV of this review will focus on congenital coronary artery anomalies, myocardial bridges, coronary aneurysm, emboli, and dissection and clinical implications regarding echocardiographic imaging techniques.

Coronary Aneurysm↗
PubMed1992

Cardiac pathology in 2007 consecutive forensic autopsies.

The incidence of various types of cardiovascular disease was evaluated in 2007 consecutive forensic patients. Cardiovascular deaths accounted for 22.8% of the study patients and atherosclerotic coronary heart disease was the most common type of cardiac disease (18%). Among subjects dying of atherosclerotic coronary disease, sudden death was three times more frequent than acute myocardial infarction. Expected cardiac findings included the incidence of severe coronary atherosclerosis (21%), floppy mitral valves (5%), and congenital bicuspid aortic valves (1%). Major cardiac findings occurred in 32% and minor cardiac findings were found in 40%. Only 17% of hearts were anatomically normal. An unexpected cardiac necropsy finding included the high frequency of myocardial bridges (23%). Unexpected cardiac findings included the low incidence of acute myocarditis (0.6%) and common finding of tunneled epicardial coronary arteries ("myocardial bridges") (23%).

Adult↗
PubMed1992

Incidence of sudden athletic deaths between 1985 and 1990 in Marion County, Indiana.

Relatively little information is available concerning the incidence of sudden death in athletes in the United States. The present study provides annual incidence rates of sudden athletic deaths in Marion County, Indiana, home of Indianapolis, the "amateur sports capital of the world." The overall incidence was 0.04% (18 athletic deaths in 44,481 forensic necropsies). This incidence varied slightly over the 6-year study period: 1985 (0.06%), 1986 (0.03%), 1987 (0.04%), 1988 (0.09%), 1989 (0%), 1990 (0.01%). Of the 18 sudden athletic deaths, 88% were cardiac in origin. A retrospective analysis of preparticipation screening efforts suggests that most of the cardiac conditions responsible for death could have been detected.

Adolescent↗