Hemodynamic consequences of respiratory insufficiency following trauma

Metabolic and hemodynamic consequences of mannitol following myocardial anoxia.

The mechanism of action of hyperosmolal mannitol was evaluated by hemodynamic and metabolic studies in 79 isovolumic nonrecirculating paced perfused rat hearts during sequential 15-min periods of aerobic, anoxic, and reoxygenated perfusion. Hyperosmolality induced by addition of mannitol significantly decreased myocardial water content (wet/dry wt ratio). It improved recovery of hemodynamic fun...

Overview of Pathophysiologic Mechanisms in Chronic Ventilatory Insufficiency Direct Consequences of Respiratory Muscle Weakness

the ventilatory pump upon which the act of breathing depends. In many neuromuscular disorders, muscle weakness involves the respiratory muscles to an equal or even greater extent than other skeletal muscles. The degree of limb muscle weakness cannot be used as a reliable guide to the presence of respiratory muscle impairment since the correlation between the two may be quite poor.1,2 Respirator...

The treatment of respiratory insufficiency.

Repair of Tricuspid Insufficiency Following Blunt Trauma Chest - A Case Report and Review of Literature

Heart valve injuries due to non-penetrating blunt thoracic trauma are rare. Isolated tricuspid incompetence due to detachment of a leaflet from the annulus after blunt trauma is uncommon. Young patients may tolerate chronic tricuspid regurgitation (TR), and can be undiagnosed for years until the right ventricular failure occurs. We report the case of a young adult male who sustained blunt chest...

Hemodynamic Consequences of Pacing-Induced Changes

Atrial pacing was performed in 10 patients with various degrees of aortic valvular stenosis (AVS) and the hemodynamics were compared to eight normal subjects. Similar maximum heart rates (135 + 6/min) in each group resulted in no significant complications or symptoms and no changes in cardiac output or transvalvular pressure difference while stroke work (SW) and volume and left ventricular end-...