1/131. A successful case of pulmonary thromboendarterectomy for chronic thromboembolic pulmonary hypertension with a thrombus in the right ventricle.Chronic thromboembolism is a frequent cause of progressive hypertension and carries a poor prognosis. Medical treatment is not effective and surgery provides the only potential for a cure at present. We herein report a successful case of thromboendarterectomy treated via a median sternotomy with intermittent circulatory arrest. A 43-year-old man was admitted to our hospital complaining of progressive dyspnea, edema of the lower extremities, and a fever with an unknown origin. A subsequent definitive evaluation showed him to be suffering from surgically accessible chronic thromboembolic pulmonary hypertension with a thrombus in the right ventricle. He underwent a pulmonary thromboendarterectomy and thrombectomy via a median sternotomy with intermittent circulatory arrest on November 24, 1994. Postoperatively he showed a marked improvement in his hemodynamic status and blood gas analysis. He has also returned to work with no trouble. Deep vein thrombosis appeared to be the pathogenesis of this case, but we could not find the origin of his unknown fever. He is currently being controlled by treatment with methylprednisolone as before.- - - - - - - - - - ranking = 1keywords = thromboembolism (Clic here for more details about this article) |
2/131. A rare cause of right atrial mass: thrombus formation and infection complicating a ventriculoatrial shunt for hydrocephalus.BACKGROUND: Thrombus formation around the intracardiac end of the catheter, thromboembolism, and infection are the most important and life-threatening complications of ventriculoatrial shunts. In this article we report a patient with a large right atrial mass that was diagnosed by 2-D echocardiogram and removed via standard median sternotomy and cardiopulmonary bypass. CASE DESCRIPTION: A 63-year-old man who had a right ventriculoatrial shunt was admitted to our department in a septic clinical condition. His hemoglobin was 10.7 grams, white blood cell count was 22,900/mm3, and sedimentation rate was 50 mm/hr. Blood cultures grew coagulase negative staphylococcus. The echocardiogram showed a right atrial mass at the tip of the shunt catheter. The mass had a cystic and "glove-like" appearance and had a pendulous motion in the right atrium. After combined antibiotic therapy for 10 days, symptoms were relieved but echocardiographic findings did not change. A surgical approach was chosen because of the unchanged size of the mass and the risk of pulmonary embolism. First, the distal part of the ventriculoatrial shunt was separated from its pump and a new ventriculoperitoneal shunt was placed. After this, a standard median sternotomy, cardiopulmonary bypass and right atriotomy was performed. The tip of the shunt catheter with the attached pedunculated mass was removed. CONCLUSION: There are few cases of a large right atrial thrombus secondary to a ventriculoatrial shunt in the literature. Because of these serious complications of ventriculoatrial shunting, careful 2-D transthoracic echocardiographic examination should be mandatory for patients with ventriculoatrial shunts.- - - - - - - - - - ranking = 1keywords = thromboembolism (Clic here for more details about this article) |
3/131. Idiopathic mesenteric thrombosis following caesarean section.Mesenteric venous thrombosis, "the great mimicker", is a very rare disorder in pregnancy and the puerperium, particularly when not associated with any pre-existing thrombophilia or autoimmune states. We describe a patient requiring a resection of 150 cm of gangrenous small bowel after uncomplicated elective Caesarean section. The only risk factor for thrombosis was recovery from an elective Caesarean section, a condition classified by the Royal College of Obstetricians and Gynaecologists as "low risk". death from thromboembolism is the leading cause of maternal mortality and should always be considered with unusual post partum symptoms. early diagnosis of mesenteric vascular occlusion is difficult and recent evidence suggests that elevated GST isoenzyme may be helpful. In all cases of MVT anti-coagulation is the basis of treatment. patients who are not anti-coagulated after surgery have a recurrence rate of 25 per cent compared with 13 per cent of heparinised post-operative patients. As no other pre-existing cause for MVT was found, management was with warfarin for 6 months, the oral contraceptive pill was contraindicated and heparin prophylaxis was recommended for future pregnancies.- - - - - - - - - - ranking = 1keywords = thromboembolism (Clic here for more details about this article) |
4/131. Multiple arterial thromboembolisms in a patient with the 20210 A prothrombin gene mutation.The most recently characterized genetic defect contributing to venous thrombophilia is the 20210 A prothrombin gene mutation. We describe a patient with this defect who had arterial thrombosis resulting in considerable mesenteric ischemia. Several environmental factors, which might otherwise be considered of low thrombotic risk, may also have contributed to her condition. The recognition of the potential for novel presentations of hypercoagulable states may contribute to a reduction in the morbidity associated with acute mesenteric ischemia.- - - - - - - - - - ranking = 4keywords = thromboembolism (Clic here for more details about this article) |
5/131. Acute occlusion of an abdominal aortic aneurysm--case report and review of the literature.Acute thrombosis of an abdominal aortic aneurysm (AAA) is a surgical emergency. Only 44 cases have been reported in the literature. The mechanism of the thrombosis has not been delineated. The proposed etiologies include propagation of thrombus from distal artery occlusion, cardiac thromboembolism, and dislodgment of a mural thrombus. patients often present bilateral lower extremity ischemia, mimicking a saddle embolism. Systemic heparinization immediately after diagnosis and prompt surgical revascularization can reduce the mortality rate. The authors present a patient with sudden thrombosis of an AAA who was successfully treated with an axillobifemoral bypass graft. All published cases of thrombosed AAAs are analyzed.- - - - - - - - - - ranking = 1keywords = thromboembolism (Clic here for more details about this article) |
6/131. Fatal pulmonary artery thrombosis in a patient with Behcet's disease, activated protein c resistance and hyperhomocystinemia.Behcet's disease (BD) is known for its tendency for thromboembolism, which is thought to be due to vascular injury. The important role of inherited thrombophilias is now becoming increasingly clear. However, conflicting data exist in terms of the contribution of these factors to the thrombotic risk in BD. In this case report, we describe a patient with BD who presented with severe cor pulmonale due to recurrent chronic venous thromboembolism and pulmonary artery thrombosis. The biochemical evaluation revealed that the patient was homozygotic for the factor v Leiden (R506Q) mutation and had increased levels of homocysteine. His condition deteriorated despite adequate anticoagulation treatment, and he died suddenly after 7 months of follow-up. We assume that the presence of thrombophilic risk factors augments and synergizes with the hypercoagulable state already existing in BD, leading to fatal thrombosis in this patient.- - - - - - - - - - ranking = 2.3222020683066keywords = thromboembolism, venous thromboembolism (Clic here for more details about this article) |
7/131. Multiple aortic thrombi associated with protein C and S deficiency.We describe a woman with an unusual case of thromboembolism of the mesenteric artery in whom multiple thrombi were subsequently found in the aorta and right heart chambers on transesophageal echocardiography. Further evaluation revealed a deficiency of protein C and S plasma proteins, inhibitors of the clotting system. The patient was treated successfully with systemic anticoagulation. Aortic thrombus is common in the setting of underlying atherosclerosis. However, the association of aortic thrombus with a deficiency of protein C and S is rare. To our knowledge, this is the first reported case of mural thrombus of the thoracic aorta associated with combined protein C and S deficiency. Our report underscores the important role of transesophageal echocardiography in the evaluation of patients with arterial thromboembolism.- - - - - - - - - - ranking = 2keywords = thromboembolism (Clic here for more details about this article) |
8/131. Excessive anticoagulation in patients with mild renal insufficiency receiving long-term therapeutic enoxaparin.Low-molecular-weight heparins, such as enoxaparin, are increasingly being used for treatment of venous thromboembolism. We describe two patients who received therapeutic enoxaparin for several months. Although their serum creatinine values were normal, both had mild renal insufficiency (creatinine clearance 60-70 ml/min), and both accumulated the drug abnormally and experienced clinical bleeding. These results suggest that patients receiving enoxaparin (or other low-molecular-weight heparins) in therapeutic doses for periods of more than 4 weeks should be considered for laboratory monitoring to avoid bleeding.- - - - - - - - - - ranking = 1.3222020683066keywords = thromboembolism, venous thromboembolism (Clic here for more details about this article) |
9/131. Three-year follow-up of an atrial septal aneurysm.This is a 3-year follow-up of a gradually ballooning atrial septal aneurysm (ASA) which developed a spontaneous echo contrast and later a mobile thrombus in the aneurysm. This clearly demonstrates one of the pathogenetic mechanisms of systemic thromboembolism associated with ASA. In view of the risk of systemic thromboembolism or the need for lifelong anticoagulation treatment, the aneurysm was excised and an atrial septal patch was fashioned to close the resultant defect.- - - - - - - - - - ranking = 2keywords = thromboembolism (Clic here for more details about this article) |
10/131. Thrombus on the intraluminal felt strip. A possible cause of postoperative stroke.We report a case of a 60-year-old woman who received an operation for acute aortic dissection and who had a postoperative complication of multiple cerebral infarction. Through aggressive investigation using transesophageal echocardiography, a mobile thrombus on the intraluminal felt strip used for the enforcement of the dissecting aortic wall was detected as the possible source of the cerebral thromboembolism. After anticoagulation therapy was started, the mobile thrombus growing on the intraluminal felt strip disappeared, and no new lesions of cerebral thromboembolism occurred.- - - - - - - - - - ranking = 2keywords = thromboembolism (Clic here for more details about this article) |
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