Regularly Changing Subcutaneous Injection Location of Low Molecular-weight Heparin to Reduce the Subcutaneous Hemorrhage

Objective To investigate the correlation between regularly changing subcutaneous injection location of low molecular-weight heparin and the incidence and size of subcutaneous hemorrhage, and to find out the effective way to reduce incidence and area of subcutaneous hemorrhage. Methods Forty patients with acute myocardial infarction (AMI) or unstable angina pectoris were randomly divided into experimental group (n=20) and control group (n=20). In the experimental group, low molecular-weight subcutaneous injection was given by regularly changing location, while in the control group, low molecular-weight subcutaneous injection was given by randomly changing location. Each group received 240 low molecular-weight injections. The incidence and size of subcutaneous hemorrhage was observed. Results The incidence and size of subcutaneous hemorrhage in the experimental group was significantly less than in the control group (P0.05,P0.01). Conclusion Regularly changing subcutaneous injection location of low molecular-weight heparin can reduce the incidence and area of subcutaneous hemorrhage.