Sleep-disordered breathing is associated with pulmonary hypertension and raised haematocrit. The multiple episodes of apnoea in this condition cause chronic intermittent hypoxia and hypercapnia but the effects of such blood gas changes on pulmonary pressure or haematocrit are unknown. The present investigation tests the hypothesis that chronic intermittent hypercapnic hypoxia causes increased p...

AIM To compare the efficacy of using isotonic saline (crystalloid) or 5% albumin (colloid) as replacement fluid in partial exchange transfusion (PET) for the treatment of neonatal polycythaemia. METHODS One hundred and two polycythaemic full term infants were randomly allocated to receive PET with either isotonic saline or 5% albumin. The criteria for PET were: (a) venous haematocrit > or = 0...

A validation study of the FAMACHA(©) system for clinical evaluation of anaemia due to Haemonchus contortus was conducted on two commercial sheep farms in the summer rainfall region of South Africa. In this region, the Haemonchus season lasts from October to April. On Farm 1 the system was tested over a period of five successive years in consecutive sets of young stud Merino replacement rams and...

BACKGROUND Prompt and accurate diagnosis is needed to prevent the untoward effects of anaemia on children. Although haematology analyzers are the gold standard for accurate measurement of haemoglobin or haematocrit for anaemia diagnosis, they are often out of the reach of most health facilities in resource-poor settings thus creating a care gap. We conducted this study to examine the agreement ...

Schiicking (I1879) estimated the total blood volume of six newborn infants. In two infants, whose cords had been tied soon after delivery, blood volume was distinctly smaller than in four other infants whose cords had not been tied until some minutes after delivery. However, these estimates were made by Welcker's method and were by no means exact. The plasma volume of newborn infants was measur...

We have read with interest the recently published article by Sargento et al. [1], regarding the haemostatic, haemorheologic and inflammatory profile in transmural myocardial infarction survivors during a 12-month follow-up period. With respect to haemorheological parameters, the authors found that plasma viscosity and fibrinogen concentration decreased over the 12-month period while haematocrit...

Secondary polycythaemia results from increased Erythropoietin production which acts on normal erythropoietic progenitors leading to erythrocytosis. This report is about a 64 years old hypertensive and anaemic male who presented with complaints of painful per rectal bleeding dribbling micturition. On undergoing relevant investigations, he was found be low haemoglobin haematocrit. Lateron, subseq...

Background: Erythrocytes require an ability to deform and to withstand shear stress while negotiating the microcirculation. These properties are largely due to their excess surface area per volume and the characteristics of the membrane’s protein. Deficiencies of these proteins are associated with chronic haemolysis. Methods: This was a cross sectional  study aimed at determining the prevalenc...

The present study was undertaken to investigate the effects of Zataria multiflora and Eucalyptus globolus essential oils on some haematological parameters and respiratory burst activity in common carp (Cyprinus carpio). 260 fish (30±5g) were randomly distributed in 13 treatment groups each one in three replicates and different doses of essential oils in 16-17ºC were administrated. The fish were...