Cases reported "Thromboembolism"

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1/222. factor v Leiden mutation: a nursing perspective.

    The factor v Leiden mutation is a recently described autosomal dominant genetic risk factor for venous thromboembolism (VTE). persons who are heterozygous or homozygous for this disorder are at 4 to 7 times and 50 to 100 times increased risk, respectively, for VTE. In particular, women have unique challenges because the presence of the Leiden mutation in combination with pregnancy or use of oral contraceptives results in an even greater increased risk for VTE. This article will review the factor v Leiden mutation, its association with VTE, and the genetic inheritance pattern and ethnic distribution. Oral contraceptive use, pregnancy, and hormone replacement therapy in women with the Leiden mutation will be discussed. Screening issues and management for all patients, and women in particular, will be addressed. nursing implications for care management of this group of patients is complex and requires evaluation of the significance of newly defined genetic disorders such as the factor v Leiden mutation. nurses need to be knowledgeable about genetic screening, risk factors, risk-reduction counseling, and considerations for long-term therapy, which include quality of life issues. Two case studies exemplify many of the issues that will be discussed.
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ranking = 1
keywords = thromboembolism, venous thromboembolism
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2/222. Thromboembolism originated from the pulmonary artery stump after Fontan operation.

    Cerebral thromboembolism is a rare but serious complication after Fontan operation. This is the report of a patient who underwent a successful intracardiac thrombectomy for cerebral thromboembolism after Fontan operation. A 2-year-old girl was referred to us with the diagnosis of tricuspid atresia without pulmonary stenosis, normally related great arteries, and a ventricular septal defect. Although she underwent a successful Fontan operation and division of the main pulmonary artery, she developed a cerebrovascular event at 3 weeks after the operation. echocardiography demonstrated a large thrombus within the residue of the main pulmonary artery, and suggested that the thrombus had migrated into the systemic circulation by way of the ventricular septal defect. At 2 weeks after the cerebrovascular event, she underwent thrombectomy and excision of the pulmonary valve. Although she has developed slight left-sided hemiparesis, she is leading a normal life at 1 year after the operation.
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ranking = 1.8600004166787
keywords = thromboembolism
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3/222. Effectiveness of an inferior vena caval filter as a preventive measure against pulmonary thromboembolism after abdominal surgery.

    In three patients with a previous history of pulmonary thromboembolism, inferior vena caval filters were inserted before elective laparotomies to prevent a recurrent pulmonary thromboembolism. Two patients had colon cancer and underwent colectomies, while the other had myoma uteri, which might have been the cause of deep vein thrombosis, and thus a hysterectomy was performed. In spite of their poor risks, their postoperative courses were fairly good owing to perioperative management including anticoagulant therapy, and no recurrence has been observed since the operation in every case. A pulmonary thromboembolism is a fatal complication which follows deep vein thromboses. In patients with such a previous history, the risk is much higher after a laparotomy because of long-term bed rest, hypercoagulability, and so on. The mortality rate after a recurrence of pulmonary thromboembolism is reported to reach 30% without adequate therapy, whereas it is reduced to 8% with anticoagulant therapy, and to 0.8% with additional inferior vena caval filter placement. Considering the feasibility of insertion and the low incidence of complications, preoperative inferior vena caval filter placement is thus recommended for patients having a previous history of either pulmonary thromboembolism or deep vein thrombosis.
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ranking = 8.3700018750541
keywords = thromboembolism
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4/222. Mobile intracardiac calcinosis: a new risk of thromboembolism in patients with haemodialysed end stage renal disease.

    Cardiac calcinosis is a common complication of end stage renal disease. A newly observed risk of thromboembolism is reported in four patients with mobile cardiac calcinosis, treated with long term dialysis. Rapidly growing mobile calcification was confirmed by echocardiography. Each patient had an imbalance in serum calcium x inorganic phosphate (Ca x P product >/= 50); this imbalance could not be treated due to the sudden death of the patient or the need for surgical resection to prevent recurrent cerebral thromboembolism. Histological examination revealed intracardiac calcinosis in three cases, and each case showed haemodialysis hypoparathyroidism (intact PTH < 160 pg/ml). Thromboembolism in such cases is rare, however it indicates a need for cautious echocardiographic monitoring in end stage renal disease in patients with an uncontrolled Ca x P product.
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ranking = 5.5800012500361
keywords = thromboembolism
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5/222. Physician preferences for perioperative anticoagulation in patients with a mechanical heart valve who are undergoing elective noncardiac surgery.

    STUDY OBJECTIVE: To determine physicians' anticoagulation preferences in patients with a mechanical heart valve who are undergoing elective surgery, and to determine the effect of different risks of thromboembolism (TE) and postoperative bleeding on anticoagulation preferences. DESIGN: Mail survey of physicians who prescribe anticoagulant therapy. methods AND RESULTS: physicians were asked to provide anticoagulation preferences in four clinical scenarios of patients with a mechanical heart valve who are undergoing elective surgery. physicians were asked to select from three preoperative anticoagulation options (two aggressive, one less aggressive) and four postoperative anticoagulation options (two aggressive, two less aggressive). IV heparin was the most frequently selected anticoagulation option. Depending on the scenario, it was preferred by 39 to 79% of respondents for preoperative anticoagulation therapy, and by 44 to 84% of respondents for postoperative anticoagulant therapy. The risk of TE had a strong influence on anticoagulation preferences: more respondents preferred aggressive anticoagulant management in high-risk compared with low-risk TE scenarios (p < 0.001). Anticoagulation preferences were not influenced by the risk of bleeding: the proportion of respondents who preferred aggressive anticoagulant management did not differ in high-risk and low-risk bleeding scenarios (p > 0.05). Of respondents who preferred IV heparin for postoperative anticoagulation therapy, the risk of bleeding influenced the timing of heparin initiation: fewer respondents preferred early heparin initiation (within 12 h after surgery) in high-risk compared with low-risk bleeding scenarios (p < 0.01). CONCLUSIONS: (1) Preoperative and postoperative IV heparin were the most frequently selected anticoagulation options. (2) The risk of TE, but not the risk of bleeding, influenced the aggressiveness of anticoagulant management. (3) If IV heparin was selected, the risk of bleeding influenced the timing of heparin initiation.
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ranking = 0.93000020833935
keywords = thromboembolism
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6/222. When the body and appendage of the left atrium disagree: "Focal" atrial fibrillation-implications for atrial thrombus formation and risk of thromboembolism.

    A case is presented of a man who had 5 hours of atrial fibrillation followed by spontaneous conversion and maintained sinus rhythm that persisted as shown by surface electrocardiography. Transesophageal echocardiography performed 24 hours after electrocardiographic conversion documented an atrial fibrillation pattern within the left atrial appendage, with a normal sinus Doppler pattern in the body of the left atrium. This apparent regional discrepancy in atrial function may partially explain the increased risk for "late" thromboembolism among patients with atrial fibrillation who appear to be successfully converted with sustained sinus rhythm.
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ranking = 4.6500010416967
keywords = thromboembolism
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7/222. A 22-year course of the Kay-Shiley disc valve with muscle guard at the mitral position.

    Almost 33 years have elapsed since the introduction of the Kay-Shiley disc valve in japan. Following the development of pyrolite carbon, the Kay-Shiley valve is no longer in clinical use. We report the case of a female patient who had had an isolated mitral valve replacement with the Kay-Shiley disc valve with single muscle guard 22 years previously. After numerous thromboembolic episodes with the Kay-Shiley disc valve, a successful reoperation was done with the CarboMedics valve. The explanted valve revealed that the grooved occluder disc had a loosely adherent clot. The thromboembolism is a notorious complication associated with this valve. We recommend re-replacement of the Kay-Shiley valve whenever possible.
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ranking = 0.93000020833935
keywords = thromboembolism
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8/222. Massive thromboembolism due to transcatheter ASD closure with ASDOS device.

    Transcatheter occlusion of atrial septal defects (ASD) is currently being investigated as an attractive alternative to surgical correction. Thromboembolic events are rare in both techniques. However, we report a case of massive systemic embolization and residual left atrial thrombus after secundum ASD transcatheter closure by the ASDOS device (Atrial Septal Defect Occlusion System, Dr. Ing Osypka Corporation, germany). The patient was successfully treated by femoral embolectomies, surgical removal of the device and closure of the ASD without a patch. No thrombophilia was found on subsequent exploration. Transcatheter ASD closure with the ASDOS device may therefore expose the patient to severe embolic complications. Further evaluation is needed before this technique can be safely recommended.
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ranking = 3.7200008333574
keywords = thromboembolism
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9/222. Peripartum cardiomyopathy presenting as lower extremity arterial thromboembolism. A case report.

    BACKGROUND: Although venous thromboembolism has been associated with peripartum cardiomyopathy, there have been no prior reports of lower extremity arterial thromboembolism complicating cardiac failure. CASE: A 38-year-old woman, gradiva 5, para 5, presented on postpartum day 9 with left pedal parasthesia. lower extremity angiography found acute thrombotic emboli in the left popliteal artery, right tibial artery and right peroneal artery. When respiratory decompensation ensued, a transthoracic echocardiogram revealed global hypokinesis and a left ventricular ejection fraction of 30%. The patient had an uneventful recovery after treatment with digoxin, furosemide and intravenous heparin. CONCLUSION: lower extremity arterial thromboembolism may be the initial manifestation of peripartum cardiomyopathy.
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ranking = 6.5800012500361
keywords = thromboembolism, venous thromboembolism
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10/222. Coexisting dysfibrinogenemia (gammaR275C) and factor v Leiden deficiency associated with thromboembolic disease (fibrinogen Cedar Rapids).

    fibrinogen Cedar Rapids is a heterozygous dysfibrinogenemia (gammaR275C) that was associated with thromboembolism during and following pregnancy in three second-generation family members who also were heterozygotic for factor v Leiden (V R506Q). Like other dysfibrinogenemias with substitutions at position 275 of the gamma-chain, fibrinogen Cedar Rapids is characterized by defective end-to-end intermolecular fibrinogen and fibrin 'D : D' associations, a fibrin network structure that is composed of thicker and more highly branched fibers, normal fibrin 'D: E' associations, and normal factor xiii-mediated crosslinking of fibrinogen and fibrin. In addition, Cedar Rapids fibrinogen and fibrin displayed delayed plasmin lysis rates. Compared with normal fibrinogen, platelet aggregation or platelet fibrinogen receptor clustering was defective in the presence of fibrinogen Cedar Rapids. Most subjects with gammaR275 mutations do not experience clinical thrombotic disorders, suggesting that the combination of a factor v Leiden defect and a gammaR275C dysfibrinogenemia predisposes to thromboembolic disease.
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ranking = 0.93000020833935
keywords = thromboembolism
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