General anesthesia for patients undergoing percutaneous transluminal coronary angioplasty during acute myocardial infarction.
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Adult↗
Biomedical subjects
E B Carlson
Publications and source records attributed to E B Carlson.
Right ventricular subendocardial infarction in a patient with pulmonary hypertension, right ventricular hypertrophy, and normal coronary arteries.
Right ventricular infarction is usually associated with coronary artery disease and concomitant left ventricular infarction. Isolated right ventricular subendocardial necrosis was discovered at autopsy in a 52-year-old woman with pulmonary hypertension, right ventricular hypertrophy, and normal coronary arteries, who died with septicemia 41 days after mitral valve replacement. This represents the first well-documented report of isolated right ventricular subendocardial infarction associated with normal coronary arteries.
Bioprosthesis↗
Subvalvular left ventricular pseudoaneurysm after mitral valve replacement: two-dimensional echocardiographic findings.
Disruption of the posterior mitral anulus is a rare complication of mitral valve replacement that may result in subvalvular left ventricular pseudoaneurysm formation. Such pseudoaneurysm formation was easily recognized by two-dimensional echocardiography in a 54 year old man 3 years after his second mitral valve replacement. The finding was confirmed by cineangiography and direct surgical inspection. Recognition of this rare complication of mitral valve replacement has therapeutic importance because surgical correction is necessary.
Cineangiography↗
Interventional cardiac catheterization.
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Angioplasty, Balloon↗
Comparison of noninvasive techniques in evaluation of the nontissue cardiac valve prosthesis.
The ability of bedside auscultation, echophonocardiography and cinefluoroscopy to detect prosthetic valve malfunction was compared in 81 patients with a Bjork-Shiley aortic or mitral valve prosthesis or a Beall mitral valve prosthesis. In 32 patients with an abnormal mitral valve prosthesis proved by cardiac catheterization, the sensitivities of auscultation, echophonocardiography and cinefluoroscopy were 94, 78 and 88 percent, respectively. In 25 patients with a normal mitral valve prosthesis, the specificities were 96, 64 and 89 percent, respectively. Twelve patients had an abnormal aortic valve prosthesis; the sensitivities of auscultation, echophonocardiography and cinefluoroscopy were 92, 58 and 33 percent, respectively. In 12 patients with a normal aortic valve prosthesis, the specificities were 100, 75 and 92 percent, respectively. Auscultation can detect almost all cases of malfunction of nontissue prosthetic valves. Echophonocardiography and cinefluoroscopy can detect most cases of malfunction of mitral valve prostheses, but false positive studies are common; both procedures are less useful in detecting malfunction of aortic valve prostheses.
Aortic Valve↗
Hemodynamic significance of normal and abnormal fluoroscopic patterns of disc motion in the Beall mitral valve prosthesis.
Thirty-eight patients with a Beall mitral valve prosthesis were studied by cinefluoroscopy and cardiac catheterization to determine which characteristic of disc morphology and which patterns of disc motion predict significant valve malfunction. Eleven patients with a Beall 105/106 prosthesis served as a control group. There were two normal patterns of disc motion: (a) disc moving either entirely parallel to the suture ring or (b) disc having an intermediate nonparallel position but normal systolic and diastolic seating. Twenty-seven patients had a Beall 104 prosthesis. Fourteen of these had normal disc motion, only one showing significant mitral insufficiency. Thirteen of the 27 patients had abnormal disc motion with systolic cocking of the disc; 12 of these had significant mitral insufficiency, and all 13 showed severe disc wear at surgery.
Cardiac Catheterization↗