background: pregnant patients with mechanical heart valves require anticoagulation. the risk of bleeding and embryopathy associated with oral anticoagulants must be weighed against the risk of valve thrombosis. methods: in this prospective study, undertaken between 1999 and 2009, 53 pregnancies (47 women with mechanical mitral valves; 29.8 ± 4.8 years old) were studied. patients were divided in...

evaluation of the cardiovascular system of canine pediatrics requires awareness of the anatomical and physiological changes occurring from birth to six months of age. the aim of this study was to report electrocardiographic changes in the littermate mongrel dogs from birth tosix months. serial six-lead electrocardiograms were recorded from ten normal littermate mongrel dogs kept on right latera...

this study describes the prevalence of cardiac dysrhythmias occurring over a single 24 h period in ponies and compares the heart rate and frequency of dysrhythmias in two groups of ponies of different ages. electrocardiograms were recorded using a holter monitoring system from twenty four ponies aged less than 15-year-old (n = 14) and greater than 15-year-old (n = 10). subsequent analyses of ca...

conclusions both remifentanil and magnesium had favorable outcomes in preventing hr and map elevation after tracheal extubation. however, remifentanil was associated with more rapid regaining of consciousness and reversal of muscular relaxation. results the hr was significantly lower, immediately after extubation and 3, 5, and 10 minutes after extubation, in both magnesium and remifentanil grou...

malignant melanoma has the heart metastasis rate of 50 - 71%, which seems to be the highest among other malignancies. when a patient presents with cardiac metastases of melanoma, the disease has already spread through the body and therefore hardly curable. this brief review tried to introduce this important condition and discuss its frequency, presentation, diagnosis, histologic findings and tr...

heart failure is a clinical syndrome characterized by the inability of the heart to provide nutrient supply to tissues. in 75% of cases, the underlying pathology causing heart failure in patients with cardiac death is coronary heart disease. a rabbit model of heart failure with coronary ligation was produced to mimic coronary heart disease in humans. after producing the model, two arteries and ...

the aim of this study is to show that the measures derived from electrocardiogram (ecg) signals many a time perform better than the same measures obtained from heart rate (hr) signals. a comparison was made to investigate how far the nonlinear symbolic dynamics approach helps to characterize the nonlinear properties of ecg signals and hr signals, and thereby discriminate between normal and cong...

 Statins are commonly used drugs in the treatment of hyperlipidemia (HL), despite some undesirable side effects. These range from mild symptoms such as myopathy, muscle weakness and myalgia to severe muscle weakness associated with chronic myopathy and acute renal failure (ARF) as a result of rhabdomyolysis. The most serious and deadly side effect of statins is rhabdomyolysis. The case presente...

background: selenium (se) is an essential trace element mainly obtained from seafood, meat, and cereals. se deficiency has been identified as a major contributing factor in the pathogenesis of certain congestive heart failure (chf) syndromes. since there is controversy over the prevalence of se deficiency among patient with chf, the aim of this study was to assess the serum se concentrations in...

conclusions the loss of hrc at the onset of admission may predict mortality in patients with blunt trauma. lower entropy, in recently admitted patients with intra-abdominal bleeding, may indicate laparotomy when the vital signs are stable. background nonlinear analysis of heart rate variability (hrv) has been recently used as a predictor of prognosis in trauma patients. objectives we applied no...