Cardiac resynchronization therapy (CRT) is a new method for the correction of inter- and/or intraventricular conduction delays of patients with heart failure. The long-term impact of CRT on central hemodynamics is not fully characterized. We performed complete right heart catheterization studies in 31 patients receiving a CRT device pre and 6 months after implantation. Most of the patients impr...

Communications to the Editor accurate and reproducible. We cannot explain the discrepant hemodynamic measurements obtained in the one patient reported in the present letter which contradicts our findings, except to say that hemodynamic measurements may lag behind changes in the respiratory cycle during CSB. \% do agree with the author that further evaluation ofthe precise hemodynamic changes as...

The effects of captopril on bemodynamic, rolmne, and neurohumoral indices were inrestigated in 33 patients with essential hypertension or renal arterial disease. Changes associated with treatment were studied under two conditions: immediately (V4 to 1 boar) after administration of the drug, or after 5 to 7 days of therapy. Blood pressure (BP) reduction in both conditions was due to a reduction ...

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-...

Cardiac output (with cardiogreen dye dilution), heart rate, stroke volume, mean arterial pressure, and central venous pressure (SVC) were measured': I) following induction of anesthesia while the abdomen was being opened, 2) during mobilization of the recipient'S liver, 3) shortly following cross-clamping the inferior vena cava and portal vein (early anhepatic phase), 4) just prior to revascula...

Effect of Combinational Changes Catheter Size and its Negative Suction Pressure on Hemodynamic Parameters Mechanical Ventilation Patients

THE EFFECT OF EPHEDRINE AND PLACEBO ON HEMODYNAMIC CHANGES ITS COMPLICATIONS IN PATIENTS UNDERGOING PERCUTANEOUS NEPHROLITHOTOMY WITH SPINAL ANESTHESIA

This study aimed to evaluate venous hemodynamic and morphological changes and associated factors in patients with Peripherally Inserted Central Catheters (PICCs), to provide evidence for rational clinical use of PICCs. Venography was performed at different time points in 87 patients with PICCs to observe hemodynamic, morphological, and structural changes. Related laboratory blood tests were als...