polycythaemia


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pol·y·cy·the·mi·a

(pol'ē-sī-thē'mē-ă)
An abnormal increase in the number of red blood cells.
Synonym(s): erythrocythemia, polycythaemia.
[poly- + G. kytos, cell, + haima, blood]

polycythaemia

An abnormal increase in the number of red blood cells as a result of increased red cell production by the bone marrow. This occurs naturally in people living at high altitudes (secondary polycythaemia) but may occur for no apparent reason (polycythaemia vera) causing flushed skin, headaches, high blood pressure (HYPERTENSION) and blurred vision. STROKE is a common complication. Treatment is by regular bloodletting (venesection) sometimes supplemented by the use of anticancer drugs or radioactive phosphorus. An American study reports that low-dose aspirin can safely prevent thrombotic complications in people with this disease. A gene for polycythaemia vera was reported in 1998.

pol·y·cy·the·mi·a

(pol'ē-sī-thē'mē-ă)
An abnormal increase in the number of red blood cells.
Synonym(s): erythrocythemia, polycythaemia.
[poly- + G. kytos, cell, + haima, blood]
References in periodicals archive ?
Polycythaemia secondary to testosterone replacement therapy has been well described [1]; however we present a case of tibolone-associated polycythaemia.
Bone marrow biopsy was done in these cases which was highly suggestive of polycythaemia Vera.
There was no significant increase in the number of neonates with polycythaemia in the DCC group.
There were no significant polycythaemia hyperbilirubinaemia and tachypnoea in the DCC newborns.
He said: "Our show has brought in the most money for the past two years, particularly important is the fact this slot is Tony Fenton's old slot and he y died from cancer." Fergal himself was diagnosed with a rare form of blood cancer, polycythaemia, and is still in and out of St Vincent's Hospital getting tests.
[4] Macrosomia, hypoglycaemia, polycythaemia and congenital heart diseases are more seen in these infants.
We presumed that our patient had coagulation abnormalities related to cyanosis and secondary polycythaemia.
A comparison between concentrations of free erythrocyte protoporphyrin and serum ferritin during development of iron deficiency by phlebotomy in polycythaemia vera patients.
To determine the relationship of RVO to Systemic Hypertension, Diabetes Mellitus, Hyperlipidaemia, Obesity, Smoking, Polycythaemia, and Glaucoma.
Rarely Wilms' tumour may present with acquired von Willebrand's disease and a bleeding diathesis, polycythaemia, weight loss, urinary infection, diarrhoea or constipation.
[19] The later may occur in patients with hypercoagulable syndromes such as sickle cell disease, antiphospholipid antibody syndrome, polycythaemia vera or in hypercoagulable states such as pregnancy and with the use of oral contraceptives.