The objectives of this study were to assess the feasibility of low flow right ventricular support and to describe the hemodynamic effects of low versus high flow support in an animal model of acute right ventricular pressure overload. A Synergy Pocket Micro-pump (HeartWare International, Framingham, MA) was implanted in seven sheep. Blood was withdrawn from the right atrium to the pulmonary art...

Background: Arterial pressure is one of the most important physiological variables and often needs to be monitored repeatedly or continuously in perioperative period. Arterial pressure monitoring is one of the standard monitoring in operating room. During general anesthesia, blood pressure can be measured by using a noninvasive arterial pressure method or continuous invasive arterial pressure b...

recent studies have documented the importance of lipids and lipoproteins as determinants of serum total homocysteine concentrations in persons with myocardial infarction, and in healthy subjects. associations between various biological systems and total homocysteine have also been reported. however, some of these associations are poorly understood. the purpose of our study was to measure serum ...

background: use of single measurement of risk factors can distort their estimated effects, due to random error in measurements. the aim of this study was to examine the extent of underestimation in the estimated effect of common variables in physical exam i.e. systolic and diastolic blood pressure (sbp, dbp) and body mass index (bmi) on cardiovascular diseases in tehran lipid and glucose study ...

Abbreviations: TEE: Trans esophageal Echocardiography; HF: Heart Failure; HT: Heart Transplantation; LVAD: Left Ventricular Assist Device; ESHF: End Stage Heart Failure; LVHF: Left Ventricular Heart Failure; LV: Left Ventricular; LVEDV: Left Ventricular End Diastolic Volume; PV: Prolonged Ventilation; BNP: B-Type Natriuretic Peptide; VAD: Ventricular Assist Device; LVEDP: Left Ventricular End D...

Background: Pulse pressure has recently been considered as a predictor of coronary heart disease. The difference between systolic and diastolic blood pressure is called pulse pressure. Various factors including increased age, vascular stiffness, stenosis, and hypertension are associated with pulse pressure. The present study, therefore, aimed to investigate the relationship between some cardiov...

introduction:the overlap syndrome, consisting ofobstructive sleep apnea hypopnea syndrome (osahs) and chronic obstructvie pulmonary disease (copd) is a major problem in copd patients. oshas corresponds to the likelihood of systemic hypertension.the present study was aimed to evaluate the association between apnea-hypopnea index and diastolic blood presssure (dbp) in overlap  patients. materials...

The role of systemic arterial hypertension as a possible trigger of myocardial ischemia during angina at rest was studied in 13 consecutive patients who also had a history of exertional angina. Significant (greater than or equal to 70%) stenosis of at least one major vessel was present in each of the 10 patients in whom coronary arteriography was carried out. After documentation of the electroc...

background the nasal septal deviation (nsd) is one of the major causes of nasal obstruction. this condition increases upper airway resistance. in this study we evaluated the mean pulmonary artery pressure (mpap) in patients with markedly deviated septum. methods sixty two patients with nsd (age range: 26-45 years, 34 men and 28 women) were included in the study. mean pulmonary artery pressure w...