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Query: UMLS:C0151744 (myocardial ischemia)
 31,282 document(s) hit in 31,850,051 MEDLINE articles (0.00 seconds)

The state of the water-electrolyte metabolism was studied by the radio-isotope dilution technique in 115 patients with different forms of ischaemic heart disease and in 25 normal persons. It was established that all forms of ischaemic heart disease are accompanied by a significant potassium deficit imperceptible for blood and urine examinations of their electrolyte composition. The potassium deficit is most clearly expressed in patients with cardiosclerosis, especially in congestive heart failure. In a considerable part of the patients with acute myocardial infarction, including those without clinical signs of congestive heart failure, the rate of sodium and water metabolism is decreased, and the total body content of metabolizing sodium is increased. Sodium retention in the body is especially severe in patients with cardiosclerosis complicated by congestive circulatory insufficiency. The administration of diuretics in adequate doses was shown to result in normalization of the indices of sodium and water metabolism.
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PMID:[State of water-electrolyte metabolism in ischemic heart disease]. 101 7

Selective coronary angiography was performed and cardiac catheterization was employed to study the indices of the myocardial contractility and the state of central haemodynamics in 20 patients with ischaemic heart disease, 24 patients with myocarditic cardiosclerosis complicated by cardiac fibrillation, 6 patients with "idiopathic" atrial fibrillation, and 20 patients with extracardiac pathology (controls). The data obtained by the author indicate that selective coronary angiography helps significantly in the differential diagnosis between myocarditic cardiosclerosis and ischaemic cardiomyopathy.
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PMID:[State of the coronary bed and certain indicators of hemodynamics and myocardial contraction in auricular fibrillation]. 102 32

Over 400 operations of an indirect revascularization of the myocardium have been performed at the A.I. Bakulev institute of Cardiovascular Surgery of the USSR Academy of Medical Sciences. Since 1970, the direct method have been developed, predominantly those of aorto-coronary bypass. Careful examination of 709 patients was carried out, 445 of them were subjected to selective coronary angiography, 108 were operated on. In 1974, 56 operations were undertaken, among them 36 aorto-coronary bypasses, in 6 of them with a preliminary endarterectomy from the coronary artery, 8 double bypasses, 6 procedures for acute myocardial infarction, 5 combined operations of aorto-coronary bypass and resections of cardiac aneurysms, and 15 resections of postinfarction aneurysms of the heart. Twelve patients died in the postoperative period, mainly due to acute cardiac insufficiency. The high figures of mortality are caused not only by the faults of the surgical procedures but also by the grave initial state of the patients (multiple coronary lesions large focal cardiosclerosis due to preceeding infarctions, high degree of initial cardiac insufficiency). The improvement of the results of surgery for the ischaemic heart disease will depend on the perfection of the surgical technique, on proper selection of the patients, and on the precise determination of the indications for such treatment.
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PMID:[Surgical treatment of severe forms of ischemic heart disease]. 108 45

Data are presented on the differential diagnosis of some forms of the ischaemic heart disease, myocardial infarction including, performed with the help of a long--distance enquiry of the "Nairi-K" computer. This is one of the adjunct methods of early and timely diagnosis of myocardial infarction that permits to differentiate it from angina pectoris, postinfarction cardiosclerosis, acute abdominal pathology, pleuropneumonia, and to determine the localization of the necrosis. The exactness of the diagnosis ranges from 93 to 95%. An information system was developed that permits a more objective assessment of the nature of the ECG changes.
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PMID:[Differential diagnosis of acute myocardial infarct and ECG interpretation with the aid of long-distance computer inquiry]. 109 5

Studies of the myocardium of the right and left atria in 31 cases of sudden death due to myocardial infarction of the ventricles or in the presence of extensive-focal cardiosclerosis were carried out. Histological techniques for staining with hematoxylin-eosine, trichrome after Masson and Goldman's method were used. Microscopic investigation of the heart in 14 cases revealed fresh areas of necrosis of the myocardium atria, which the authors evaluated as infarction. The involvement of the myocardium of the atria into the pathological process influenced the course and prognosis of ischemic heart disease.
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PMID:[Changes in the myocardium of the atrium in sudden death due to ischemic heart disease]. 120 Aug 73

A total of 74 patients with postinfarct cardiosclerosis (PC) and stable angina (SA) were examined by Holter monitoring, bicycle ergometry, echocardiography and 201Tl chloride myocardial scintigraphy and loading tests (transesophageal cardiac pacing and isometric hand exercise test). The detection rate for silent myocardial ischemia (SI) was found to be 57.1% with Holter monitoring, 52.3% by bicycle ergometry, 62.5% with echocardiography, 100% with myocardial scintigraphy with loading test and 88.8% with that without the loading test. The detection rate for PC was 33.9, 32.0, 64.7, 81.8, and 56.7%, respectively. Higher SI detection rates in postinfarct patients were more frequently observed when echocardiography and myocardial scintigraphy in combination with loading tests in patients with PC without angina. The efficiency of SI detection in patients with various coronary heart disease increases when loading tests are employed. The loading tests in echocardiography and myocardial scintigraphy ensure the most complete detection of SI in postinfarct patients without angina.
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PMID:[Use of loading tests to detect silent myocardial ischemia]. 128 7

A new method for appraising the individual efficacy of an antiarrhythmic agent is described. It is based on paired administration of isoprenaline and testing antiarrhythmics for maximum activity. The possibility of provoking ventricular tachycardia by isoprenaline made it possible to identify a contingent of patients with "catecholamine-sensitive" or "variable" tachycardia. The prognosis of "catecholamine-sensitive" ventricular tachycardia proved to be the worst in groups of patients with ischemic heart disease attended by postinfarction cardiosclerosis and in patients with arrhythmogenic dysplasia of the right ventricle.
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PMID:[Ventricular tachycardia: the role of adrenergic stimulation in the prognosis of fatal arrhythmia]. 141 28

Concomitant ischemic heart disease was encountered in every 5 patients among 840 patients who underwent operation for occlusive lesions of the arteries of the lower limbs. Coronary cardiosclerosis increases the incidence of fatal myocardial infarction in the early and late-term postoperative periods. The presence of a clinical picture of ischemic heart disease and ECG changes require the performance of loading tests and, if their results are positive, the accomplishment of coronary ventriculography so as to solve the question of preventive revascularization of the myocardium. Preventive aortocoronary shunting excludes the risk of the development of cardiogenic complications in reconstruction of the great arteries of the lower limbs.
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PMID:[The diagnosis and surgical treatment of ischemic heart disease in patients with occlusive arterial lesions of the lower extremities]. 146 46

Polycardiography was used to examine myocardial contractile parameters: preejection and ejection periods and contractility coefficient in 90 patients with coronary heart disease running without complications postoperatively following aortocoronary bypass and cardiac aneurysm resection. The magnitude and length of lower myocardial contractility were found to be associated with the baseline extent of coronary and cardiosclerosis, the signs of congestive heart failure, the value of ejection fraction, and intraoperative parameters such as the duration of extracorporeal circulation and myocardial ischemia, the number of shunts and their blood flow. Early drug correction of complications and a scientifically substantiated approach to the physical rehabilitation of those operated on may be applied with due account of the changes in myocardial contractility.
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PMID:[Myocardial contractility in the early postoperative period after aortocoronary bypass and cardiac aneurysm resection]. 152 29

Holter monitoring, echocardiography and 201Tl myocardial scintigraphy were performed in 40 patients with postinfarction cardiosclerosis. The monitoring revealed silent myocardial ischemia (SMI), including 27 having SMI with concurrent anginal episodes, 7 with SMI alone. A direct correlation was found between the duration of SMI and silent myocardial infarction (r = 0.539; p less than 0.05). The patients with left ventricular failure and myocardial hypertrophy exhibited longer SMI, as evidenced by echocardiography. 201Tl myocardial scintigraphy revealed no relationship between the degree of SMI and the dimensions of a postinfarction scar. SMI was detected in 77.5% of the patients with postinfarction cardiosclerosis. The duration of SMI was longer with the presence of angina pectoris, left ventricular failure or myocardial hypertrophy.
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PMID:[Painless myocardial ischemia in patients with post-infarction cardiosclerosis]. 153 93


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