A 63-year-old white man with a 6-month history of progressive exertional dyspnea was referred for evaluation. In 1997, he presented an episode of unconsciousness as first symptom of a cardiac disease. In 2003, arterial hypertension, as well as atrioventricular block Mobitz type I, was diagnosed. A worsening of the biventricular heart failure over the last 2 years led to his admission at our cli...

A 63-year-old white man with a 6-month history of progressive exertional dyspnea was referred for evaluation. In 1997, he presented an episode of unconsciousness as first symptom of a cardiac disease. In 2003, arterial hypertension, as well as atrioventricular block Mobitz type I, was diagnosed. A worsening of the biventricular heart failure over the last 2 years led to his admission at our cli...

OBJECTIVE To evaluate left and right ventricular functions using tissue Doppler echocardiography (TDE) and myocardial performance index (MPI) methods in patients with slow coronary flow (SCF) and to determine the relationship between these parameters and thrombolysis in myocardial infarction frame count in SCF patients. SUBJECTS AND METHODS Thirty-five patients (20 males and 15 females) with ...

The objective of our study was to compare Doppler echocardiography imaging with pulmonary artery thermodilution measurement during mechanical ventilation. Total 78 piglets (6 weeks old, average weight 24 kg, under general anesthesia) were divided into 4 groups under different cardiac loading conditions (at rest, with increased left ventricular afterload, with increased right ventricular preload...

BACKGROUND Low O2 tension dilates coronary arteries and high O2 tension is a coronary vasoconstrictor but reports on O2-dependent effects on ventricular performance diverge. Yet oxygen supplementation remains first line treatment in cardiovascular disease. We hypothesized that hypoxia improves and hyperoxia worsens myocardial performance. METHODS Seven male volunteers (mean age 38 +/- 3 years...

The present study was undertaken to explore the possible involvement of alterations in the mitochondrial energy-producing ability in the development of the right ventricular failure in monocrotaline-administered rats. The rats at the 6th week after subcutaneous injection of 60 mg/kg monocrotaline revealed marked myocardial hypertrophy and fibrosis, that is, severe cardiac remodeling. The time-c...

In order to assess the role of right ventricular and left ventricular dysfunction in patients with cardiogenic shock associated with combined right ventricular and inferior myocardial infarction, we reviewed the clinical records and haemodynamic data of 18 patients with inferior myocardial infarction and cardiogenic shock. Six of these patients had haemodynamic evidence of right ventricular dys...

We examined whether differences in the location of myocardial hypertrophy influence the right ventricular diastolic function in patients with non-obstructive hypertrophic cardiomyopathy using cineangiography. Biplane right ventriculography was performed in 34 subjects (normal = 14, asymmetric septal hypertrophy = 9, apical hypertrophy = 11) during cardiac catheterization. In patients with asymm...