According to Dameshek, true polycythemia (polycythemia vera: PV) is a chronic myeloproliferative disorder of the total bone marrow without any evidence of invasiveness, in which erythrocytosis, leukocytosis, and thrombocytosis are all simultaneously present.
However, in patients suffering from connective tissue disease or lung cancer, chest pain may persist for long periods. What Causes Pleurisy? Pleurisy may occur inhealthy, young people who have an infection in the lungs caused by bacteria or virus. Pleurisy may last a few days or up to two weeks. In rare cases, the infection may spread, causing pleurisy in other people. Pleurisy may also be associated with air leaking in the pleural cavity from a punctured lung, a condition called pneumothorax.
This is a room fitted with X-ray equipment to allow the doctor to monitor the procedure on a screen. A coronary angioplasty usually takes between 30 minutes and two hours, although it can take longer. You'll be asked to lie on your back on an X-ray table. You'll be linked up to a heart monitor and given a local anaesthetic to numb your skin.