ABSTRACT
The survival and viability of eggs from Ascaris suum and Oesophagostomum dentatum and of infective larvae (L3) from O. dentatum were determined in the ensiled solid fraction of swine faeces after 0, 7, 14, 28 and 56 days of ensiling. The experiment had two treatments, un-ensiled and ensiled manure, in a split-plot design. Each of 50 containers was inoculated with 40,000 eggs of both A. suum and O. dentatum, and another 50 containers were inoculated with 32,747 L3 of O. dentatum each. A. suum eggs were not destroyed by the ensiling process, although their viability was diminished. O. dentatum eggs and larvae were destroyed during the first 7-14 days of the ensiling process.
Subject(s)
Ascaris suum/physiology , Bacteria, Anaerobic/metabolism , Feces/parasitology , Oesophagostomum/physiology , Swine/parasitology , Animals , Feces/microbiology , Hydrogen-Ion Concentration , Survival Analysis , Temperature , Time FactorsABSTRACT
El miocardio hibernado es uno de los tres nuevos síndromes isquemicos, caracterizado por disfunción ventricular izquierda en reposo que mejora luego de la revascularización. Se desconocen los procesos responsables de la disfunción reversible. durante los últimos años varios métodos han sido usados para identificar marcadores fisiológicos de viabilidad miocárdica. Diagnósticar esta condición es importante debido a que su resolución está asociada a una menor tasa de eventos cardiovasculares y a un mejor pronóstico
Subject(s)
Humans , Male , Female , Ventricular Dysfunction, Left/diagnosis , Ventricular Dysfunction, Left/pathology , Myocardial Ischemia/pathology , Myocardium/pathologyABSTRACT
14 patients with advanced uremia had a mean cardiac index (CI) of 4.37 +/- 0.25 liters/min/m2, a mean stroke work index (SWI) of 65.6 +/- 3.7 g/m/m2 and a mean left ventricular filling pressure (LVFP) of 16.3 +/- 2.1 mm Hg. The left ventricular performance was estimated to be normal when CI or SWI changes were correlated with simultaneous variation of the LVFP attained during peritoneal dialysis or afterload reduction. CI was high at a normal LVFP, it decreased at low or high LVFP. Guanidines retention, metabolic acidosis and hypocalcemia did not prevent the maintenance of a high CI or SWI. Out of 32 patients, left ventricular hypertrophy and pericardial effusion, conditions which may affect ventricular distensibility, were present in 25 and in 22 echocardiograms, respectively. We suggest that in uremic subjects, LVFP is primarily influenced by volume loads and by ventricular distensibility modifications.
