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Abstract: . . . anticipated length of stay greater than 36 hours. 294 patients studied. Patients were generally studied within 6 hours of admission. At this time 7.5% of patients had DVT above the knee. Three factors were associated with DVT -- the APACHE II score, emergent procedures, and age. The absence of all three risk factors had a very low risk of DVT 91.1%). They use a screening procedure where patients are screened if they have an APACHE II greater than 12, emergent procedure or age 65 years or older. Something to consider in postop patients transferred to the MICU. No information on the rate of developing DVT during the ICU stay. J. Vasc. Surg 26: 764-769, 1997. Prophylaxis use: One third of MICU patients received venous thromboembolism prophylaxis with a mean delay of 2 days. Chest 106:13, 1994. Chest 113: 163, 1998. Study excluded patients ICU admitting dx of PE or DVT, death within 24 h of ICU admission, low risk for VTE, ICU stay for < 24 hours. 86% of patients received DVT prophylaxis within the first 24 hours. 14% did not receive prophylaxis without good reason (DVT prophylaxis not due to contraindications to either pharmacologic or compression devices). 57% were pneumatic compression stockings. 26% were low dose heparin. . . . . . . thrombosis was seen in 16.6% of the femoral line group and 16% of the SVC group. Prospective study of 80 patients inserted for a mean duration of 8.8 days. 84% were in place for more than 7 days. At the time of removal, venograms were done. 64% of venograms were normal. 16% of patients had fibrin sleeves. 8.5% had femoral vein thrombosis . 3% had popliteal vein thrombosis . 23% of patients had posterior tibial vein thrombosis . Method of venous thrombosis prophylaxis not provided. Thus, 33% of patients have clot in their legs with 12% having clot above the knee (unclear what prophylaxis was used). Other studies with femoral venous catheters: Insertion of 8.5 Fr introducer catheters: 14% thrombosis Triple lumen or dialysis catheter 25% DVT Transvenous pacemaker 34% DVT Femoral venous catheters 11% DVT Patients admitted to SICU following surgery: Ultrasonogram of legs in patients admitted to SICU with an anticipated length of stay greater than 36 hours. 294 patients studied. Patients were generally studied within 6 hours of admission. At this time 7.5% of patients had DVT above the knee. Three factors were associated with DVT -- the APACHE II score, emergent procedures, and age. The absence of all three risk factors had a very low risk of DVT 91.1%). They use a screening procedure where patients are screened if they have an APACHE II greater than 12, emergent procedure . . . --3000,2,750,2993,18497
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