Biomedical subjects
Publications and source records attributed to E K Ramsaran.
Right and left atrial electromechanical intervals and onsets of active right and left ventricular filling were measured in patients with interatrial block and compared with control patients. Left atrial mechanical activity is significantly delayed by interatrial block.
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Coronary sinus thrombosis has been reported only as a complication of cardiac transplantation and right heart catheterization in noninfected patients. We report a case of acute coronary sinus thrombosis occurring in the absence of these procedures and resulting in sudden cardiac death.
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Patients with cardiac tamponade usually have significant hypotension; hypertension is rare. Before administering any medication during tamponade one must consider the complex physiology and compensatory mechanisms of cardiac compression [1]. We observed both an accentuation of pulsus paradoxus and retrospectively recognized fluctuations of left-ventricular function after progressively rising arterial blood pressure had been lowered.
In a 79-year-old female with shortness of breath, catheterization via the femoral vein encountered difficulty entering the right heart; venography revealed anomalous drainage of the inferior vena cava via a dilated azygos vein permitting subsequent catheterization. Similar difficulties during catheterization merit consideration of this congenital anomaly, which is virtually always discovered in the pediatric population in association with other congenital anomalies. Its unique discovery at advanced age indicates its benignity as an isolated abnormality.
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