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Query: UMLS:C0019087 (hemorrhagic diathesis)
 678 document(s) hit in 31,850,051 MEDLINE articles (0.00 seconds)

Dyspnea, back pain, edema, and cyanosis developed suddenly in a 23-year-old woman during the last trimester of her first pregnancy. Although she had been noticed to have the enlarged heart and exertional shortness of breath to a slight degree, she had been apparently in good condition without any significant heart murmurs. Clinically, recurrent episodes of disseminated intravascular coagulation, including pulmonary thrombosis, were thought to be superimposed to Eisenmenger syndrome associated with toxemia of pregnancy. Anticoagulant and fibrinolytic treatments were tried, but their effectiveness was limited by hemorrhagic diathesis. She died of respiratory and circulatory failure after delivery of a moribund baby. Autopsy revealed Eisenmenger complex (a defect in the membranous portion of the interventricular septum and pulmonary vascular disease) and many fresh hemmorrhages in both lungs with a lot of new and organized thrombi. Fresh thrombi were also seen in the heart, the pancreas and the kidneys. The high peripartal mortality in Eisenmenger syndrome could be attributed to pulmonary thrombosis, which may be related to DIC, as well as to peripartal changes in circulatory function.
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PMID:An autopsied case of Eisenmenger syndrome complicated by recurrent thromboembolic phenomena in postpartal period. 13 43

The early diagnosis of heart disease during or better before pregnancy is one of the most important problems, as cardiac diseases are the most common cause for maternal deaths throughout the world. The knowledge of hemodynamic alterations in circulatory and respiratory physiology during pregnancy complicated by heart disease is a prerequisite for their management. The following indications for therapeutic abortion of pregnancy complicated by heart disease can be concluded according to our own observations: 1. history of significant heart failure (more than grade IV according to the classification of the New York Heart Association), frequent attacks of angina pectoris and longstanding cyanosis: 2. in spite of the most careful heart treatment with digitalis, diuretics and salftree diet cardiac-thorax-rate of more than 55% in congenital heart disease, cardiac-thorax-rate of more than 60% in acquired heart disease, significant signs of heart failure, namely more severe than grade III, tachycardic atrial fibrillation, pulse deficit of more than 30/min, active inflammatory processes of the heart (rheumatic fever, subacute bacterial endocarditis, Takayasu's disease); 3. especially severe metabolic disorders, i.e. diabetes mellitus, malignant hypertension, kidney diseases; 4. primiparae of an age of more than 35 years with any heart disease. Commissurotomy can be accomplished during pregnancy if it is too late for therapeutic abortion. Pregnancy in case of artificial valves is not recommended in general because of impending hemorrhagic diathesis.
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PMID:[Indication for pregnancy interruption in patients with heart diseases]. 85 89

This paper discusses causes, hemodynamics, symptoms, and signs of pulmonary embolism. Severe cases obstruct at least 60 percent of the pulmonary vascular bed. Small or moderate cases may be easily overlooked. Symptoms may be only slight chest pain or dyspnoea, fever, giddiness, or irregular heart beat. In the author's experience with 35 cases of acute massive pulmonary embolism at the Bromptom Hospital oral contraceptives were considered a predisposing factor in 5 cases (14 percent), pregnancy was a possible cause in 2 (6 percent), a recent operation in 24 (68 percent). No other recognized factor was thought to have predisposed more than a single case. Clinical features included cyanosis, collapse, sever chest pain, dyspnoea, sweating, rapid heart rate, falling blood pressure, and occasional coughing up of blood. Electrocardiograms sometimes gave helpful information. Chest x-ray was usually not helpful except to exclude other causes. Heart catheterization and pulmonary arteriography have been done to assess the extent of the embolism. Emergency surgical pulmonary embolectomy is recommended for extreme cases. Fibrinolytic agents such as streptokinase may be adequate for less severe cases who have not had a recent operation of do not suffer from a hemorrhagic disorder.
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PMID:Pulmonary embolism. 535 32

Hemotrophic mycoplasmas (HM) are highly specialized red blood cell parasites that cause infectious anemia in a variety of mammals, including humans. To date, no in vitro cultivation systems for HM have been available, resulting in relatively little information about the pathogenesis of HM infection. In pigs, Mycoplasma suis-induced infectious anemia is associated with hemorrhagic diathesis, and coagulation dysfunction. However, intravasal coagulation and subsequent consumption coagulopathy can only partly explain the sequence of events leading to hemorrhagic diathesis manifesting as cyanosis, petechial bleeding, and ecchymosis, and to disseminated coagulation. The involvement of endothelial activation and damage in M. suis-associated pathogenesis was investigated using light and electron microscopy, immunohistochemistry, and cell sorting. M. suis interacted directly with endothelial cells in vitro and in vivo. Endothelial activation, widespread endothelial damage, and adherence of red blood cells to the endothelium were evident in M. suis-infected pigs. These alterations of the endothelium were accompanied by hemorrhage, intravascular coagulation, vascular occlusion, and massive morphological changes within the parenchyma. M. suis biofilm-like microcolonies formed on the surface of endothelial cells, and may represent a putative persistence mechanism of M. suis. In vitro analysis demonstrated that M. suis interacted with the endothelial cytoskeletal protein actin, and induced actin condensation and activation of endothelial cells, as determined by the up-regulation of ICAM, PECAM, E-selectin, and P-selectin. These findings demonstrate an additional cell tropism of HM for endothelial cells and suggest that M. suis interferes with the protective function of the endothelium, resulting in hemorrhagic diathesis.
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PMID:Mycoplasma suis infection results endothelial cell damage and activation: new insight into the cell tropism and pathogenicity of hemotrophic mycoplasma. 2339 79