MORGAN, BEVERLY C., FRANCIS L. ABEL, GAY L. MULLINS, AND WARREN G. GUNTHEROTH. Flow patterns in cavae, pulmonary artery, pulmonary vein, and aorta in intact dogs. Am. J. Physiol. 2 IO(~) : 903-909. 1966 -Ultrasonic flow transducers were implanted in dogs and the animals were allowed to recover completely. In the vena cava, flow reversed with atria1 systole, and the two forward-flow waves were c...

The present study aimed to explore the prevalence of pre-capillary pulmonary hypertension (PH) and characterise haemodynamic vascular responses to physical exercise in chronic obstructive pulmonary disease (COPD) outpatients, where left ventricular dysfunction and comorbidities were excluded. 98 patients with COPD underwent right heart catheterisation at rest and during supine exercise. Mean pu...

Mild-to-moderate pulmonary hypertension (PH) is a common complication of advanced chronic obstructive pulmonary disease (COPD). The presence of PH is associated with an increased risk of acute exacerbation and decreased survival. Patients with COPD may present with severe elevation of pulmonary artery pressure (mean pulmonary artery pressure .35–40 mmHg). This is observed in end-stage disease, ...

INTRODUCTION  Chronic obstructive pulmonary disease is characterized by progressive and partially reversible obstruction of pulmonary airflow. AIM  To characterize swallowing in patients with chronic obstructive pulmonary disease and correlate the findings with the degree chronic obstructive pulmonary disease, heart and respiratory rate, oxygen saturation, and smoking. METHOD  We conducted ...

Pulmonary extravascular fluid volume was measured in 64 patients with ischaemic heart disease at the time of cardiac catheterization using a double indicator dilution technique. In 3I of these patients exercise studies were done. Left ventricular and selective coronary angiography was performed in 43 and the angiographic severity of left ventricular dysfunction and of coronary artery obstructiv...

cardiac hydatid cyst (chc) is a rare disease that was endemic in some regions especially in sheep-raising areas. the most commonly accepted theory for the routes of heart involvement in hydatid cyst was infestation by the hexacanthus embryo through coronary arteries. here, we describe a case with the primitive cardiac hydatid cyst located around the pulmonary valve (pv) and main pulmonary arter...

We present the clinical, angiographic and surgical findings in a 63-year-old man with anomalous origin of the left main coronary artery from the right sinus of valsalva. The course of the left main artery was abnormal in that it passed between the aorta and the pulmonary artery; in addition, there was obstructive disease involving the left main coronary artery. The association of these two enti...

background: the incidence of coronary artery bypass grafting surgery (cabg) in elderly patients has been increasing. there are contradictory reports on the early outcome of elderly coronary artery patients as compared with their young counterparts. we designed this retrospective study to address this issue. methods: w e retrospectively analyzed the results of 1489 on–pump cabg cases performed a...

OBJECTIVE Unilateral pulmonary artery agenesis is an uncommon isolated anomaly and since 1978 only 119 cases have been reported. In general the condition presents as pulmonary hypertension (PH) in children and hemoptysis in adults. Interventions such as pulmonary artery reconstruction and lobectomies were performed in 17% of the cases. We analyzed four of these cases, two in natural evolution a...

Our purpose was to assess how pulmonary artery pressure changes in relation to hypoxia and oesophageal pressure during obstructive sleep apnoeas. Transmural systolic pulmonary artery pressure (Ppa,STM), oxyhaemoglobin saturation (SaO2) and oesophageal pressure were analysed in two samples of consecutive obstructive apnoeas in each of four patients. In the first samples (samples A; probably reco...