Key messages

• Primary polycythemia, posing risks of vascular occlusive disease, demands urgent treatment with venesection, cytotoxic agents, and aspirin.

• Although secondary polycythemia benefits oxygen transport in hypoxemic patients, venesection may be necessary to reduce hematocrit values in excess of 0.65.

• 'Dilution-venesection' should be considered for patients with apparent ('stress') polycythemia and hematocrit values of more than 0.55. introduction

When polycythemia has been diagnosed and categorized as primary, secondary, or due to a contracted plasma volume, the therapeutic decision regarding clinical management has to be taken.

Sleep Apnea

Sleep Apnea

Have You Been Told Over And Over Again That You Snore A Lot, But You Choose To Ignore It? Have you been experiencing lack of sleep at night and find yourself waking up in the wee hours of the morning to find yourself gasping for air?

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