[thorn]

Сообщение от ostroumov

нельзя ли поподробнее по поводу инфарктов правого желудрчка без ИБС? Нет ли какой литературы по этому поводу? Очень интересная теория.

Сорри за

Colantonio D, Ventura T, Casale F, Leocata P, Coletti G, Pasqualetti P. [Morphological and clinical aspects of isolated right ventricular myocardial infarction] Medicina (Firenze). 1990 Apr-Jun;10(2):163-5.
[Article in Italian]

Dipartimento di Medicina Interna, Università dell'Aquila.

In an autopsy study of 2569 subjects, during the period 1971-1988, 289 cases of myocardial infarction were found. On the basis of morphological and histological data 8 (2.8%) of such cases were diagnosed as isolated right ventricular myocardial infarction. Clinical data relating to these 8 cases were also considered. The right ventricular myocardial infarction may be secondary to acute or chronic pulmonary hypertension, in the setting of massive pulmonary thromboembolism or cor pulmonale, especially in the presence of right ventricular hypertrophy and with normal or stenotic coronary arteries. Isolated right ventricular myocardial infarction is clinically underestimated due to the great difficult to make a correct diagnosis in life. The low accuracy of the standard electrocardiographic records does not allow to pose a diagnosis of isolated right ventricular myocardial infarction.

Jerjes Sánchez C, Gutiérrez-Fajardo P, Ramírez-Rivera A, García-Mollinedo Mde L, Hernández Chávez G. [Acute infarct of the right ventricle secondary to a massive pulmonary thromboembolism] Arch Inst Cardiol Mex. 1995 Jan-Feb;65(1):65-73.

Servicio de Urgencias, Hospital de Cardiologiá, Centro Médico Nacional, Siglo XXI, IMSS, México, D.F.

The hemodynamic and cardiovascular responses to a massive pulmonary embolism are: severe pulmonary hypertension, right ventricular failure and cardiogenic shock. The irreversible state of the latest condition and mortality could be due to a secondary right ventricle myocardial infarction, an entity which was first described in 1949. We report a necropsy case with massive pulmonary embolism and as a relevant finding a recent right ventricular myocardial infarction without significant obstructive coronary lesions. The relevance of right ventricle myocardial infarction as a major risk factor for mortality, its clinical and hemodynamic profile as well as the ischemic phenomena, are analyzed. It is emphasized also the importance of an early lysis of thrombus to rescue myocardium and to preserve right ventricle viability. This could be the first case reported in Mexico, in which the relationship between massive pulmonary embolism and right ventricle myocardial infarction is demonstrated as a determinant factor for mortality.

Coma-Canella I, Gamallo C, Martinez Onsurbe P, Lopez-Sendon J. Acute right ventricular infarction secondary to massive pulmonary embolism. Eur Heart J. 1988 May;9(5):534-40.

Unidad Coronaria, Hospital La Paz, Madrid, Spain.

Isolated right ventricular infarction has been found in cases of right ventricular hypertrophy, but there are no reports on right ventricular infarction secondary to massive pulmonary embolism. Six autopsied patients with massive pulmonary embolism and pure right ventricular infarction, suspected to be secondary to the embolism, were selected from a population of 216 autopsies. Pulmonary embolism was the suspected diagnosis in five cases due to typical clinical, electrocardiographic and haemodynamic data. Right ventricular infarction was a post-mortem finding, not previously diagnosed. In every case the thickness of the right ventricular myocardium was normal. The necrosis of the right ventricle was transmural in four cases and subendocardial in two and the entire right ventricular wall (anterolateral as well as posterior) was involved. No mural thrombi were present and in no case did the necrosis involve the left ventricle. In one case the coronary arteries were normal, in the other five significant lesions of the right or left coronary arteries were observed. These lesions may have been, in part, responsible for the necrosis of the right ventricle when the massive pulmonary embolism was added. We conclude that right ventricular infarction may be secondary to pulmonary hypertension in the setting of massive pulmonary embolism, even in the absence of right ventricular hypertrophy and with normal or stenotic coronary arteries.

Adams JE 3rd, Siegel BA, Goldstein JA, Jaffe AS. Elevations of CK-MB following pulmonary embolism. A manifestation of occult right ventricular infarction. Chest. 1992 May;101(5):1203-6.

Department of Internal Medicine, Washington University School of Medicine, St Louis.

To determine the frequency and etiology of elevations of CK-MB in patients with pulmonary emboli, we studied 52 patients with well-documented emboli and the absence of known ischemic heart disease or ECG changes suggestive of acute infarction. All patients were evaluated with serial CK-MB determinations at 8-h intervals. All patients with elevations of CK-MB had noninvasive cardiac evaluations. Four (7.7 percent) of the 52 patients had a rising and falling pattern of CK-MB that satisfied enzyme criteria of acute infarction. Three of these four also manifested classic echocardiographic features of right ventricular infarction. None of the four had evidence of left ventricular regional wall motion abnormalities or dysfunction. Of the 48 patients without elevations of CK-MB, only two had segmental right ventricular dysfunction. These findings suggest that pulmonary emboli can induce right ventricular infarction in some (7.7 percent) patients even when patients with a history of coronary artery disease and/or ECG changes of infarction are excluded. Conversely, the diagnosis of pulmonary embolism should be considered in patients when right ventricular infarction is diagnosed.