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Low molecular weigh...
Low molecular weight heparin started before surgery as prophylaxis against deep vein thrombosis: 2500 versus 5000 XaI units in 2070 patients
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BERGQVIST, D (author)
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BURMARK, US (author)
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- FLORDAL, PA (author)
- Karolinska Institutet
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- FRISELL, J (author)
- Karolinska Institutet
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HALLBOOK, T (author)
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HEDBERG, M (author)
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HORN, A (author)
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KELTY, E (author)
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KVITTING, P (author)
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LINDHAGEN, A (author)
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- LJUNGSTROM, KG (author)
- Karolinska Institutet
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MATZSCH, T (author)
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RISBERG, B (author)
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SYK, I (author)
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- TORNGREN, S (author)
- Karolinska Institutet
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WELLANDER, E (author)
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ORTENWALL, P (author)
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(creator_code:org_t)
- 2005-12-08
- 1995
- English.
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In: The British journal of surgery. - : Oxford University Press (OUP). - 0007-1323 .- 1365-2168. ; 82:4, s. 496-501
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https://doi.org/10.1...
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Abstract
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- The optimal administration regimens of low molecular weight heparins (LMWHs) have not yet been established. The aim of this study was to compare the efficacy and safety of 2500 and 5000 Xal units of the LMWH dalteparin in patients undergoing elective general surgery for malignant and benign abdominal disease. Prophylaxis was started in the evening before surgery and given once-daily every evening thereafter. The study was designed as a prospective, randomized, double-blind, multicentre trial. Some 66.4 per cent of patients were operated on for a malignant disorder. The primary endpoint was deep vein thrombosis (DVT) detected with the fibrinogen uptake test. Bleeding complications were recorded and classified. Analysis was made both on an intention to treat basis and in patients given correct prophylaxis (86.3 per cent). A total of 2097 patients were randomized and 27 excluded after randomization. A technically correct fibrinogen uptake test was obtained in 1957 patients. The incidence of DVT was significantly lower in patients given 5000 Xal units, this being true for both correct prophylaxis (6.8 versus 13.1 per cent, P < 0.001), on an intention to treat basis (6.6 versus 12.7 per cent, P < 0.001), and in patients with malignant disease (8.5 versus 14.9 per cent, P < 0.001). Sixty-seven patients (3.2 per cent) died within 30 days with no difference between the groups. There were two cases of fatal pulmonary embolism. The frequency of bleeding complications in the whole series was higher in patients randomized to 5000 Xal units (4.7 versus 2.7 per cent, P = 0.02), although this was not the case in those operated on for malignant disease (4.6 versus 3.6 per cent, P not significant). Dalteparin in the dose of 5000 Xal units started in the evening before surgery has a good thromboprophylactic effect in high-risk general surgery at the cost of a small bleeding risk. In patients with malignant disease there was no increased risk of bleeding. The overall frequency of fatal pulmonary embolism with dalteparin is extremely low, even in this high-risk group of patients.
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BERGQVIST, D
-
BURMARK, US
-
FLORDAL, PA
-
FRISELL, J
-
HALLBOOK, T
-
HEDBERG, M
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show more...
-
HORN, A
-
KELTY, E
-
KVITTING, P
-
LINDHAGEN, A
-
LJUNGSTROM, KG
-
MATZSCH, T
-
RISBERG, B
-
SYK, I
-
TORNGREN, S
-
WELLANDER, E
-
ORTENWALL, P
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show less...
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The British jour ...
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Karolinska Institutet