endothelial nitric oxide synthase (enos) produces nitric oxide (no) from l-arginine and is important for the maintenance of cardiovascular homeostasis. congestive heart failure (chf) generally results in increased pulmonary blood flow and if untreated leads to pulmonary hypertension and end stage heart failure. we therefore hypothesized that increased pulmonary flow without changes in pressure ...

during a period of four years between june, is, 1988 to june, is, 1992 one hundred and fourteen patients with congestive heart failure (chf) were admitted to the pediatric department of taleghani general hospital. during the above period, 192 patients with heart disease were hospitalized at this department and chf was the cause of admission in 59.4% of them. congenital heart disease (cho) was t...

BACKGROUND Chronic kidney disease is the primary cause of end-stage renal disease in the United States. The purpose of this study was to understand the natural history of chronic kidney disease with regard to progression to renal replacement therapy (transplant or dialysis) and death in a representative patient population. METHODS In 1996 we identified 27 998 patients in our health plan who h...

Continuous 72-hour infusions of dobutamine reportedly effect sustained clinical improvement in patients with congestive heart failure. This study was designed to determine if shorter, more frequent infusions, delivered in an outpatient setting, elicit a similar response. Twenty-six patients with moderately severe congestive heart failure were randomized, 11 into a control group and 15 into a do...

Two main types of sleep-related breathing disorders occur in patients with congestive heart failure: obstructive sleep apnoea and Cheyne–Stokes respiration with central apnoeas. Obstructive sleep apnoea is characterized by recurring upper airway collapse with ongoing respiratory effort during sleep, causing repetitive surges of negative intrathoracic pressure, arousals, and oxygen desaturations...

Cheyne-Stokes respiration (CSR) during sleep is common in patients with congestive heart failure (CHF). This pattern of breathing fragments sleep, leading to daytime symptoms of sleepiness and fatigue. It was hypothesized that by controlling CSR with noninvasive pressure preset ventilation (NPPV), there would be a decrease in sleep fragmentation and an improvement in sleep quality. Nine patient...

Five patients with only mildly dilated ventricles but other features typical of congestive cardiomyopathy underwent cardiac transplantation for class IV NYHA heart failure. The findings of clinical studies, cardiac catheterization, endomyocardial biopsy, and pathologic examination of the removed hearts in this group with mildly dilated congestive cardiomyopathy (MDCM) were compared with similar...

The hemodynamic benefits of combining administration of dopamine with nitroprusside (NP) were evaluated in nine patients with chronic congestive heart failure due to ischemic, idiopathic myocardial or valvular cardiac disease. NP alone (68 microng/min) produced decline in left ventricular end-diastolic pressure (LVEDP) from 25.4 to 14.1 mm Hg (p less than 0.01) but modest increase in cardiac in...

This study aimed to assess whether the combination of a B-type natriuretic peptide (BNP) level with various noninvasive hemodynamic parameters can help physicians more quickly and accurately diagnose congestive heart failure and determine the type of left ventricular dysfunction present in patients presenting to the emergency department with dyspnea. Subjects were 98 men (aged 64.57+/-1.23 year...