40 / 66
38
Figure 21: Type of DVT prophylaxis used.
Note: total n=6,971 agents used in 5,184 cases. One patient can have multiple prophylaxis used during surgical care.
Data not available: n=86 (2%) in 5,184 operative cases.
Audit period 1 July 2007 to 30 June 2015.
‘Other’ prophylaxis included: calf stimulators, Clexane, Fragmin, clopidogrel, enoxaparin, epidural, full anticoagulation for non-ST segment elevation
myocardial infarction, and inferior vena cava filter and infusion.
TED: thromboembolic deterrent; DVT: deep vein thrombosis.
Comments:
•
The increase in the use of Aspirin from 3.8% (137/3,357) to 6.0% (63/1,057) is statistically significant (
p
<0.001).
(23)
•
The spectrum of DVT prophylaxis used varies slightly over time with the greatest variance noted in Aspirin use.
•
The type of prophylaxis used is subject to the judgement of clinicians caring for individual patients.
2007-2012
2012-2013
2013-2014
2014-2015
Heparin
46.8%
46.7%
44.2%
43.0%
Warfarin
1.7%
1.8%
1.7%
1.0%
Aspirin
3.9%
3.9%
3.6%
6.0%
Compression
13.5%
16.4%
19.0%
19.3%
TED stockings
30.7%
28.4%
28.0%
29.3%
Other
3.5%
2.9%
3.5%
2.5%
0%
20%
40%
60%
DVT prophylaxis used (%)
3.8%
Aspirin use
2007-2014
6.0%
Aspirin use
2014-2015