Analysis of risk factors associated with deep venous thrombosis in orthopedic inpatients / 中国实用护理杂志

ABSTRACT

Objective@#To explore the risk factors of deep venous thrombosis(DVT) in lower limbs of orthopedic inpatients, and provide reference for clinical nursing and prevention of thrombosis.@*Methods@#A retrospective case-control approach was used in this study. A total of 148 orthopedic inpatients diagnosed with DVT in the First Affiliated Hospital of Soochow University from February 2014 to October 2018 were selected as the case group. At the same time, 148 orthopaedic inpatients with undiagnosed DVT in the same Department were randomly selected as the control group. The electronic medical history data and related laboratory examination indexes of the two groups of patients during hospitalization in Orthopedics Department were analyzed retrospectively. Gender, age, seven indicators of blood coagulation, as well as history of hypertension, diabetes, history of DVT and other common risk factors of DVT in the two groups were statistically analyzed.@*Results@#In the case group, 63 patients (42.5%) DVT developed in the right lower extremity. The differences in the clinical symptoms and characteristics of fever, pulmonary infection, cough, expectoration, chest distress and shortness of breath, pleural effusion and constipation between the two groups were statistically significant (χ2 value was 5.688-12.312, P<0.01 or 0.05). Single factor analysis of related risk factors showed the differences of age, type of injury, lower limb joint replacement, a plaster cast, hypertension, history of DVT, central venous catheter, D-dimer and preoperative albumin levels, fibrinogen degradation products, and red blood cell count between the two groups were statistically significant (t value was-7.275-3.998, χ2 value was 4.889-13.305, Z value was-3.500--3.454, P < 0.01). Multivariate Logistic regression analysis showed that lower limb joint replacement(OR=0.383, 95%CI0.190-0.773), cough (OR=0.085, 95%CI0.010-0.731), chest distress and shortness of breath (OR=0.240, 95%CI0.077-0.745), constipation (OR=0.312, 95%CI0.135-0.718), red blood cell count (OR=3.314, 95%CI 2.105-5.216), hypertension (OR=0.534, 95%CI0.292-0.976) were independent risk factors for DVT formation in orthopedic inpatients (P<0.01 or 0.05).@*Conclusions@#DVT in orthopedic inpatients is a common result of multiple factors, among which, lower limb joint replacement, cough, chest distress and shortness of breath, constipation, red blood cell count and hypertension are independent risk factor, which should be monitored and given preventive care.