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PubMed1964

POLYCYTHEMIA VERA: PERIPHERAL VASCULAR MANIFESTATIONS.

The presenting manifestations of polycythemia vera are often complications involving the vascular system. These include myocardial infarction, cerebro-vascular accidents and ischemic changes in the extremities.The concept of increased atherogenesis in cases of polycythemia vera has been questioned. A possible mechanism by which small, otherwise subclinical atheromatous plaques produce ischemic symptoms in patients with polycythemia vera is discussed. The blood in polycythemic patients has been shown to have an increased viscosity resulting in a prolonged circulation time. If a small atheromatous plaque is present in association with increased blood viscosity, this combination may well produce ischemic symptoms. This explains why treatment of polycythemia vera, with restoration of blood to normal viscosity, often reverses the patient's ischemic symptoms. Two cases of polycythemia vera here reported, in which the presenting manifestations were gangrenous extremities, emphasize the need for prompt diagnosis and treatment of polycythemia vera. In the first case, early recognition and treatment of polycythemia vera successfully reversed the ischemic changes in the extremities, while failure of early recognition and treatment in the second case resulted in two major amputations.

Angiography↗
PubMed1995

Recent trends in mortality from peptic ulcer disease in Finland.

The enormous change of medical therapy of peptic ulcer disease in the 1970s has resulted in a significant decrease of elective ulcer surgery. It has been speculated whether this might be reflected in the mortality of the disease. Therefore, in the present study, the mortality rate of the disease was evaluated in Finland during the past 17 years covering the dramatic change in the medical therapy: the introduction of H2-receptor antagonists. This was done with a population-based epidemiological study by analyzing 1262 death certificates of people dying from peptic ulcer disease in Finland between 1972 and 1989. The study showed that there has been almost twofold increase in the mortality of the disease between 1972 and 1989 in Finland. This was mainly due to the significantly increased number of fatal ulcer hemorrhages in older people, but also mortality from ulcer perforations increased. This unfavorable epidemiological progress was most striking among elderly women and became manifest during the 1980s. We conclude that mortality from peptic ulcer disease has significantly increased in Finland due to fatal ulcer hemorrhages and perforations. This epidemiological change became manifest in the 1980s, concurrently with the dramatic change in the medical therapy of peptic ulcer disease.

Adult↗