Right ventricle infarction

The increased concentrations of K, Ca, Fe, Br, Se and Rb in infarction and scar areas are observed for patient with the recent infarction. For the patients with old infarction the levels of these elements are decreased in the same areas. This reflects the intensity of metabolic processes in the pathological area of myocardium. Additionally, the elevated levels of Se was find out in myocardium of right ventricle in both patients, that may be caused by the increasing the activity of the glutathione peroxidase enzyme. 

Heart failure is a syndrome with multiple causes that may involve the right ventricle, the left ventricle, or both. Cardiac output in heart failure is usually below the normal range. Systolic dysfunction, with reduced cardiac output and significantly reduced ejection fraction (less than 45%), is typical of acute failure, especially that resulting from myocardial infarction. Diastolic dysfunction often occurs as a result of hypertrophy and stiffening of the myocardium, and although cardiac output is reduced, ejection fraction may be normal. Heart failure due to diastolic dysfunction does not usually respond optimally to positive inotropic drugs. 

Ganguly, P.K., Dhalla, K.S., Shao, Q., Beamish, R.E., and Dhalla, N.S. 1997. Differential changes in sympathetic activity in left and right ventricles in congestive heart failure after myocardial infarction. Am. Heart J. 133 340-345. 

Sethi, R., Saini, H.K., Wang, X., Elimban, V., Babick, A., and Dhalla, N.S. 2006. Differential changes in p-adrenoceptor signal transduction in left and right ventricles of infarcted rats. Can. J. Physiol. Pharmacol. 84 747-754. 

A 6-month-old fetus who had been exposed to cocaine had a single-ventricle heart the authors suggested that coronary spasm, resulting in infarction, may have destroyed the right ventricle (268). 

Sudden, unexpected death is usually classified as cardiac in etiology, assumed to be due to ischemic heart disease or an arrhythmia. Death Irom asphyxia caused by acute bronchospasm could be erroneously classified as a cardiac cause of death. In addition, exacerbations of COPD can precipitate cardiac arrhythmias or myocardial infarction in patients with significant underlying heart disease (6,42). Severe COPD is often complicated by cor pulmonale, or chronic failure of the right ventricle caused by pulmonary hypertension and hypoxemia. Deaths caused by cor pulmonale may be misclassified as primary cardiac deaths, although the precipitating event may be a pulmonary insult. 

Fig. 3. (a) Digital photographs of mid-slices of nitro blue tetrazolium stained hearts treated with CSIL at 5 (a), 10 (b), and 20 (c) min of ischemia orIgG-L at 5 (d), 10 (e), and 20 (f) min of ischemia, (b) Mean infarct sizes are expressed as the percentage of right and left ventricles of hearts treated with CSIL, IgG-L, phosphate buffered saline (PBS), or sham instrumentation... 

Fig 2.2.2. Immediate post-surgical phases - stroke. A 55-year-old woman 14 days status post orthotopic heart transplant for constrictive/restrictive cardiomyopathy developed an acute embolic occlusion of the right middle cerebral artery trunk. Head CT demonstrated a large infarct in that right middle cerebral artery distribution with compression of the ventricles and some midline shift... 

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