Thromboprophylaxis in Patients Undergoing Orthopedic Surgeries; Using Propensity Score Matching
Overview
- Phase
- Not Applicable
- Intervention
- Xarelto (rivaroxaban)
- Conditions
- Thrombosis
- Sponsor
- Hanoi Medical University
- Enrollment
- 4000
- Locations
- 1
- Primary Endpoint
- Deep-vein thrombosis (DVT)
- Last Updated
- 8 years ago
Overview
Brief Summary
Venous thromboembolism (VTE), including deep vein thrombosis (DVT) and pulmonary embolism (PE), is a common post-operative complication. The necessity for anticoagulant therapy after orthopedic surgeries is widely understood, but treatment administration patterns in the prevention of venous thromboembolism (VTE) after orthopedic surgeries during the hospital stay have yet to be examined.
The main objective of this study is to perform a comparative effectiveness review examining the benefits and harms associated with venous thromboembolism prophylaxis in patients undergoing orthopedic surgeries.
It is around efficacy and safety evaluation of using anticoagulant for thromboprophylaxis in patients undergoing orthopedic surgeries taking into the account the reliable selection of patients most benefit.
The aims of this study is to analyze patient records in teaching hospitals database of our country (including: Hanoi Medical University, Bach Mai Hospital, Cho Ray Hospital, Viet Duc University Hospital) and compare the outcomes and costs between different types of anticoagulant medications that were prescribed for the prevention of VTE following orthopedic surgeries. This analysis will assess and quantify the outcomes, resource utilization, and cost of care for patients receiving rivaroxaban or enoxaparin. The outcomes of interest include the occurence of DVT and PE, rates of major bleeds, medical resource utilization, and total costs (medical plus pharmacy).
Investigators
Bui My Hanh
Director, Science Research and International Cooperation Unit
Hanoi Medical University
Eligibility Criteria
Inclusion Criteria
- •Undergo Orthopedic Surgery
- •Thromboprophylaxis Decision Taken
- •At least 18 years of age
Exclusion Criteria
- •Planned intermittent pneumatic compression
- •A requirement for anticoagulant therapy that could not be stopped
- •Severe hypersensitivity reaction (eg, anaphylaxis) to rivaroxaban or enoxaparin.
- •Received another anticoagulant for more than 24 hours
- •Active bleeding or a high risk of bleeding
- •Thrombocytopenia associated with a positive test for antiplatelet antibody.
- •Warfarin associated international normalized ratio (INR) more than 1.5 on the day of the surgery
- •Conditions preventing bilateral venography
- •Intensive care unit (ICU) stay after surgery
- •Pregnant or breast-feeding
Arms & Interventions
Orthopedic surgery patient records
Medical records from patients aged 18 years or older with orthopedic surgeries during the hospitalization
Intervention: Xarelto (rivaroxaban)
Orthopedic surgery patient records
Medical records from patients aged 18 years or older with orthopedic surgeries during the hospitalization
Intervention: Lovenox (enoxaparin)
Outcomes
Primary Outcomes
Deep-vein thrombosis (DVT)
Time Frame: 1 year
The frequency of Deep-vein thrombosis Symptoms and signs of DVT may include unilateral leg swelling, pain in the affected leg, calf tenderness in affected leg, increased leg warmth, erythema of affected leg, or a "palpable cord" may be felt in the affected leg.
Mean length of hospital stay in days
Time Frame: 1 year
Length of hospital stay was obtained from the discharge record and was defined as the number of days from patient admission to the hospital for orthopaedic surgeries until discharge from the hospital.
Total cost of care for index hospitalization in Vietnamese dong (VND)
Time Frame: 1 year
The mean total costs (medical plus pharmacy costs) from patient records in each antithrombotic cohort from the index hospitalization
Death
Time Frame: 1 year
Death from any cause including venous thromboembolism
Non-fatal pulmonary embolism (PE)
Time Frame: 1 year
Frequency of pulmonary embolism (non-fatal) Regarding Pulmonary Embolism (PE), diagnosis is suspected in patients with dyspnea, tachypnea, pleuritic chest pain, cough, and/or fever. Diagnosis begins with initial risk stratification "Wells Clinical Model for Evaluating the Pretest Probability of pulmonary embolism (PE) " based on presence of shock or persistent hypotension to identify patients at high risk of early mortality.
Secondary Outcomes
- Major bleeding risk(After 4 hours of the first dose and up to 2 days after the last dose of the study drug)
- Other on-treatment bleeding(After 4 hours of the first dose and up to 2 days after the last dose of the study drug)