Gene/Protein Disease Symptom Drug Enzyme Compound
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Query: UMLS:C0020473 (hyperlipidemia)
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Factors contributing to deep vein thrombosis (DVT) were studied in 51 patients (62 knees) who had a cementless total knee arthroplasty (TKA) and in 51 patients (69 knees) who had a cemented TKA. All patients were treated with a primary TKA using a porous-coated anatomic prosthesis with a porous-coated central tibial stem. Deep vein thrombosis was diagnosed by roentgenographic venography, and pulmonary embolism was diagnosed by perfusion lung scanning. Incidence of DVT was 32%, and there was no pulmonary embolism. The factors that do not seem to have much relevancy to DVT were advanced age, orthopedic disease, one- or two-staged bilateral TKA, venous anatomic variations, number of venous valves, coagulation assay data, hypertension, tourniquet time, choice of cementless or cemented TKA, severity or duration of operation, amount of blood loss, and amount of blood transfused. Conversely, more immediate relevant factors were obesity, postoperative prolonged immobilization, earlier venous disease, and hyperlipidemia.
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PMID:Factors leading to low incidence of deep vein thrombosis after cementless and cemented total knee arthroplasty. 195 58

The incidence of deep vein thrombosis in 244 patients who had total knee replacement has been studied. In 120 the prosthesis was cemented and in 124 it was cementless. In all cases the replacement was primary and a porous-coated prosthesis with a porous-coated central tibial stem was used. Deep vein thrombosis was diagnosed by venography, and pulmonary embolism by perfusion scanning. The incidence of deep vein thrombosis in the cementless knees (23.8%) and in the cemented (25%) was approximately the same. The only significant predisposing factors for deep vein thrombosis in both groups were obesity, prolonged postoperative immobilisation, previous venous disease and hyperlipidaemia.
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PMID:The incidence of deep vein thrombosis after cementless and cemented knee replacement. 221 55

BACKGROUND Deep vein thrombosis (DVT) is a type of venous thromboembolism with diverse clinical and environmental risk factors. Very few cases of DVT with multiple high risk factors have been reported. Here, we report an uncommon DVT case with multiple etiological causes, including appendicitis/appendectomy, morbid obesity, immobilization, positive phosphatidylserine IgG, and heterozygous factor V Leiden mutation. CASE REPORT A 43-year-old female was brought to the emergency room because of 2-week history of pain and swelling and ultrasound revealing evidence of DVT in the right leg. One month ago, she underwent an exploratory laparotomy because of subacute appendicitis. After surgery, the patient stayed at home in bed with very limited activity. She did not have a cough, hemoptysis, chest pain, or shortness of breath. She was morbidly obese, and had a past medical history of diabetes, hypertension, and hyperlipidemia. A full coagulation workup was completed, including Protein C, Protein S, and antiphospholipid antibody, as well as factor V and prothrombin gene mutation screen. Her D-dimer was positive. Computed tomography (CT) angiography of the lungs ruled out major emboli but was unable to rule out minor emboli. A heterozygous factor V Leiden R506Q mutation was detected. Of interest was a significantly positive phosphatidylserine IgG with a value of over 42. She was started with enoxaparin (120 mg, twice a day), and warfarin was added on day 2 when pulmonary embolism was ruled out by CT angiography. The International Normalized Ratio (INR) was monitored daily to adjust warfarin dose. CONCLUSIONS Multiple etiological factors present in this patient may have contributed to her lower-limb DVT, including appendicitis/appendectomy, morbid obesity, immobilization, positive phosphatidylserine IgG, and factor V Leiden mutation. Therefore, it is important to follow the complete workup for hypercoagulable states. This can help with diagnosis and therapy, and also give insight into the pathogenicity, which can help with prevention of recurrence and severe complications of DVT.
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PMID:An Uncommon Case of Lower Limb Deep Vein Thrombosis with Multiple Etiological Causes. 2834 60