Influence of alterations in sinus rate on determination of drug-induced changes in ventricular automaticity.

Cardiovascular effects of Adonis aestivalis in anesthetized sheep

Adonis aestivalis (summer pheasant-eye) is an annual plant with a crimson flower, distributed in southern Europe and Asia. The plant has large buttercup-like blossoms and soft, fern-like leaves. It blooms in spring and is often found as a weed in cereal fields. Like other Adonis spp., the plant produces cardiac glycosides. It is used in remedies for mild weakness of the heart, especially when a...

  Background & Objective : Heart failure is a clinical syndrome and increases in rate by aging. Because changes in ECG and electrolytes are variable, specific and sometimes independent to the disease with different methods to be diagnosed, in this study we tried to find a way to diagnose them.   Materials & Methods: This is a retrospective descriptive-analytic study. Data was collected from dec...

GIucagon-Enhanced Ventricular Automaticity in Dogs

Ventricular automaticity was studied in dogs with intact atrioventricular conduction systems and in dogs with surgically interrupted conduction systems before and after glucagon, 50 fig/kg. Results of these studies are in agreement with previous studies. When the influence of rate-dependent suppression of ventricular automaticity was nullified by comparing automaticity during periods of equal h...

Experimental Evaluation of Surface Alterations Induced in Machining of Ti-6Al-4V Alloy

Surface integrity of workpieces after machining processes is one of the most essential requirements of engineers in advanced industries, since it has significant effect on performance and service life of the components. Based on this, thermal and mechanical loads generated by machining are responsible for change in mechanical properties of the machined workpiece and consequently, they should be...

ANTICONVULSANT THERAPY-INDUCED ALTERATIONS IN CALCIUM HOMEOSTASIS

35 epileptic patients, aged 10 to 58 years (mean 23), who were taking anticonvulsant drugs were studied. The patients exhibited a 34% reduction in serum calcium levels, a 41 % increase in serum alkaline phosphatase activity and a slight but insignificant decrease in serum phosphate, compared to untreated controls. These changes appear to be related to the anticonvulsant drug taken, in the ...