1.
Preemptive antifibrinolysis: its role and efficacy in hip-fracture patients undergoing total hip arthroplasty
Liu J, Lei Y, Liao J, Liang X, Hu N, Huang W
The Journal of arthroplasty. 2021
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Editor's Choice
Abstract
BACKGROUND We aimed to determine the efficacy of preemptive antifibrinolysis with tranexamic acid (TXA) in decreasing hidden blood loss (HBL) in the elderly hip fracture patients. METHODS 96 elderly hip fracture patients receiving hip arthroplasty were randomized to receive 100 ml of normal-saline (Group A) or 1.5 g of TXA (Group B) intravenously q12h from post-admission day 1 (PAD1) to the day before surgery. Both groups were treated with 1.5 g of TXA q12h from postoperative day 1 (POD1) to POD3. HBL was calculated by formulas and recorded as the primary outcome. RESULTS In overall analyses, no difference was found in HBL, while the decline-of-hemoglobin (ΔHb), allogeneic-blood-transfusion (ABT) rate, fibrinogen-degradation-product (FDP, on PAD2, PAD3, POD1 and POD2) and D-dimer (D-D, on PAD2, PAD3 and POD1) were lower in Group B. In subgroup analyses for patients receiving intervention within 72 hours of injury, Group B had lower postoperative HBL, ΔHb, ABT rate, FDP and D-D levels (on PAD2, PAD3, POD1 and POD2). For patients receiving intervention over 72 hours after injury, no difference was detected in perioperative HBL, ΔHb, ABT rate between the two groups. The FDP and D-D levels were lower in Group B on PAD2 and PAD3. No difference was found in coagulation parameters, wound complications, VTE rate and 90-day mortality in all analyses. CONCLUSION Early administration (within 72 hours of injury) of multi-dose of TXA is effective in reducing perioperative HBL in elderly hip fracture patients. Delayed use (over 72 hours after injury) of TXA was not beneficial.
PICO Summary
Population
Elderly hip fracture patients undergoing total hip arthroplasty (n= 96).
Intervention
Intravenous tranexamic acid (TXA) every 12 hours from post-admission day to the day before surgery (n= 48).
Comparison
Normal saline (n= 48).
Outcome
No difference was found in hidden blood loss, while the decline-of-haemoglobin (ΔHb), allogeneic-blood-transfusion (ABT) rate, fibrinogen-degradation-product and D-dimer were lower in patients receiving TXA. For patients receiving intervention over 72 hours after injury, no difference was detected in perioperative hidden blood loss, ΔHb, ABT rate between the two groups. No difference was found in coagulation parameters, wound complications, venous thromboembolism rate and 90-day mortality.
2.
Efficacy and safety of iron chelator for transfusion-dependent patients with myelodysplastic syndrome: a meta-analysis
Zhang J, Shi P, Liu J, Li J, Cao Y
Hematology (Amsterdam, Netherlands). 2019;24(1):669-678
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Editor's Choice
Abstract
To systematically evaluate the efficacy and safety of iron chelators for transfusion-dependent patients with MDS. Thirteen cohort studies with 12,990 patients diagnosed with MDS were included in this study. According to m eta-analysis results transfusion-dependent MDS patients with secondary iron overload had a longer (HR = 0.52, 95%CI = 0.43-0.62, P < 0.001). Further subgroup analysis revealed a longer LFS (HR = 0.84, 95%CI = 0.76-0.93, P = 0.001) in MDS patients receiving iron chelators than in MDS patients not receiving iron chelators (HR = 0.52, 95%CI = 0.43-0.62, P < 0.001) and in patients with lower-risk MDS (HR = 0.50, 95%CI = 0.43-0.59, P < 0.001). Subgroup analysis of DFX showed that compared with patients not treated with iron chelators, the group receiving DFX monotherapy had significantly increased OS (HR = 0.43, 95%CI = 0.27-0.69, P < 0.001). In terms of tolerance, meta-analysis of binary variables in CAEs indicated that the occurrence of CAEs was significantly reduced by ICT (RR = 0.64, 95%CI = 0.57-0.71, P < 0.001).
PICO Summary
Population
Transfusion dependent patients with myelodysplastic syndrome (n=12,990, 13 studies).
Intervention
Iron chelator therapy (n=1999).
Comparison
No iron chelator therapy (n=10991).
Outcome
Patients with secondary iron overload had a longer overall survival. Further subgroup analysis revealed a longer leukaemia free survival (LFS) in MDS patients receiving iron chelators than in MDS patients not receiving iron chelators and in patients with lower-risk MDS. Subgroup analysis of Deferasirox (DFX) showed that compared with patients not treated with iron chelators, the group receiving DFX monotherapy had significantly increased overall survival. The occurrence of cardiac adverse eventss was significantly reduced by iron chelator therapy.