ABSTRACT
The slope of the posterior left ventricular wall motion in diastole (LVDS) was determined by echocardiography in 25 normal subjects and 21 patients with mitral stenosis. Patients with mitral stenosis had reduced LVDS that was related to the degree of mitral stenosis determined by calculated mitral valve area (r = 0.92). The mitral valve area correlated more closely with the LVDS than with the left atrial emptying index derived from the posterior aortic wall motion. Three patients with mitral stenosis had an increased LVDS after mitral valvotomy or mitral valve replacement. One patient with a stenotic mitral valve prosthesis had reduced LVDS. The results of this study suggest that analysis of the LVDS would be useful in predicting the severity of mitral stenosis and may be beneficial in evaluating patients with suspected prosthetic mitral valve malfunction.
Subject(s)
Diastole , Echocardiography/methods , Mitral Valve Stenosis/diagnosis , Myocardial Contraction , Blood Pressure , Cardiac Volume , Heart Valve Prosthesis , Heart Ventricles/physiopathology , Humans , Mitral Valve Stenosis/physiopathology , Mitral Valve Stenosis/surgery , Postoperative Complications/diagnosisSubject(s)
Coronary Disease/epidemiology , Adult , Aged , Female , Humans , Maine , Male , Middle AgedSubject(s)
Mitral Valve Insufficiency , Mitral Valve Stenosis , Electrocardiography , Heart Atria , Heart Neoplasms/diagnosis , Humans , Mitral Valve Insufficiency/diagnosis , Mitral Valve Insufficiency/drug therapy , Mitral Valve Stenosis/diagnosis , Mitral Valve Stenosis/drug therapy , Myxoma/diagnosisABSTRACT
A balloon-tipped catheter was used in the preoperative assessment of a patient with a solitary pulmonary arteriovenous fistula and coexistent chronic obstructive pulmonary disease and ischemic heart disease. Studies before and two months following surgical excision of the fistula showed that the increase in arterial oxygenation (49 mm Hg vs 77 mm Hg) and the reduction in the fraction of the shunted cardiac output (37% vs 6%) closely approximated the predicted preoperative estimates.
Subject(s)
Arteriovenous Fistula/diagnosis , Pulmonary Artery , Pulmonary Veins , Arteriovenous Fistula/complications , Cardiac Catheterization , Chronic Disease , Coronary Disease/complications , Female , Humans , Lung Diseases, Obstructive/complications , Middle AgedSubject(s)
Coronary Angiography , Hospitals, Community , Coronary Disease/diagnostic imaging , Humans , Maine , RiskSubject(s)
Coronary Disease , Heart Aneurysm/etiology , Adult , Humans , Male , Myocardial InfarctionABSTRACT
In our experience with 98 patients, cardiac pacing has proved to be a low risk procedure with an acceptably low incidence of serious complications. Battery depletion requiring pulse generator replacement continues to be the major limitation of this technique. Placement of the pacing catheter within the coronary sinus has not been satisfactory, and measures are routinely taken to avoid this catheter position.
