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Heart, Lung & Circulation Mar 2022Polycythaemia vera (PV) is a condition that may potentially put patients undergoing cardiac surgery at an increased risk of bleeding and thrombosis; however, there is... (Review)
Review
OBJECTIVES
Polycythaemia vera (PV) is a condition that may potentially put patients undergoing cardiac surgery at an increased risk of bleeding and thrombosis; however, there is currently a paucity of literature regarding the management of these patients. We aim to examine the literature in this systematic review to indicate the interventions that may be considered to minimise complications.
METHODS
We conducted a literature search using keywords and MeSH terms to identify articles discussing PV and cardiac surgery. The studies were identified and qualitatively analysed using the Preferred Reporting Items for Systematic Reviews and Meta-analysis (PRISMA) protocol.
RESULTS
In total, 10 case reports representing 11 patients were identified for this systematic review and were included in qualitative analysis. 63.6% of patients had preoperative intermittent phlebotomy, and the majority of patients received postoperative therapy that involved one antiplatelet agent and one anticoagulant. Generous perioperative fluid management, phlebotomy, preservation of core body temperature, early extubation, monitoring of myocardial ischaemia, infarction and vascular events, intense chest physiotherapy and patient mobilisation are important to consider to reduce the risk of complications arising from surgery.
CONCLUSION
These considerations should be systematically discussed in a multidisciplinary team, where the acute surgical need can be balanced appropriately against the risk of haemorrhage and thrombosis.
Topics: Anticoagulants; Coronary Artery Bypass; Humans; Platelet Aggregation Inhibitors; Polycythemia Vera; Thrombosis
PubMed: 34794873
DOI: 10.1016/j.hlc.2021.10.012 -
The Cochrane Database of Systematic... Feb 2020In the 1960s and 1970s, pulmonary haemorrhage (PH) occurred mainly in full-term infants with pre-existing illness with an incidence of 1.3 per 1000 live births. Risk... (Meta-Analysis)
Meta-Analysis
BACKGROUND
In the 1960s and 1970s, pulmonary haemorrhage (PH) occurred mainly in full-term infants with pre-existing illness with an incidence of 1.3 per 1000 live births. Risk factors for PH included severity of illness, intrauterine growth restriction, patent ductus arteriosus (PDA), coagulopathy and the need for assisted ventilation. Presently, PH occurs in 3% to 5% of preterm ventilated infants with severe respiratory distress syndrome (RDS) who often have a PDA and have received surfactant. The cause of PH is thought to be due to rapid lowering of intrapulmonary pressure, which facilitates left to right shunting across a PDA and an increase in pulmonary blood flow. Retrospective case reports and one prospective uncontrolled study have shown promising results for surfactant in treating PH.
OBJECTIVES
To evaluate the effect of surfactant treatment compared to placebo or no intervention on mortality and morbidities in neonates with PH.
SEARCH METHODS
For this update The Cochrane Library, Issue 2, 2012; MEDLINE; EMBASE; CINAHL; Clinicaltrials.gov; Controlled-trials.com; proceedings (2000 to 2011) of the Annual Meetings of the Pediatric Academic Societies (Abstracts2View) and Web of Science were searched on 8 February 2012.
SELECTION CRITERIA
Randomised or quasi-randomised controlled trials that evaluated the effect of surfactant in the treatment of PH in intubated term or preterm (< 37 weeks) neonates with PH. Infants were included up to 44 weeks' postmenstrual age. The interventions studied were intratracheal instillation of surfactant (natural or synthetic, regardless of dose) versus placebo or no intervention.
DATA COLLECTION AND ANALYSIS
If studies were identified by the literature search, the planned analyses included risk ratio, risk difference, number needed to treat to benefit or to harm for dichotomous outcomes, and mean difference for continuous outcomes, with their 95% confidence intervals. A fixed-effect model would be used for meta-analyses. The risk of bias for included trials would be assessed. Heterogeneity tests, including the I statistic, would be performed to assess the appropriateness of pooling the data and the results would be reported.
MAIN RESULTS
No trials were identified.
AUTHORS' CONCLUSIONS
No randomised or quasi-randomised trials that evaluated the effect of surfactant in PH were identified. Therefore, no conclusions from such trials can be drawn. In view of the promising results from studies with less strict study designs than a randomised controlled trial, there is reason to conduct further trials of surfactant for the treatment of PH in neonates.
Topics: Hemorrhage; Humans; Infant, Newborn; Infant, Premature; Lung Diseases; Pulmonary Surfactants; Randomized Controlled Trials as Topic
PubMed: 32012227
DOI: 10.1002/14651858.CD005254.pub4 -
Thrombosis Research Jan 2023We aimed to evaluate the optimal regimen, efficacy and safety of tranexamic acid (TXA) and aminocaproic acid (EACA) for patients after total hip arthroplasty (THA). (Meta-Analysis)
Meta-Analysis
The optimal regimen, efficacy and safety of tranexamic acid and aminocaproic acid to reduce bleeding for patients after total hip arthroplasty: A systematic review and Bayesian network meta-analysis.
OBJECTIVES
We aimed to evaluate the optimal regimen, efficacy and safety of tranexamic acid (TXA) and aminocaproic acid (EACA) for patients after total hip arthroplasty (THA).
METHODS
The network meta-analysis was guided by the Preferred Reporting Items for Systematic Reviews and Meta-analysis (PRISMA) guideline. The outcomes were total blood loss, transfusion rates, hemoglobin (HB) drop, and risk for pulmonary embolism (PE) or deep vein thrombosis (DVT). Subgroup analyses were performed among most effective regimens to determine the influences of timing and number of doses.
RESULTS
A total of 56 eligible RCTs with different regimens were assessed. For reducing total blood loss, all high doses of TXA and EACA except high dose of intra-articular (IA) TXA, as well as medium dose of combination of intravenous and intra-articular (combined IV/IA) TXA were most effective. All high doses of TXA, as well as medium dose of combined IV/IA TXA did not show inferiority in reducing transfusion rates and HB drop compared with other regimens. No regimens showed higher risk for PE or DVT compared with placebo, and no statistical differences were seen among most effective regimens in subgroup analyses.
CONCLUSIONS
As effective as high doses of EACA and TXA, medium dose (20-40 mg/kg or 1.5-3.0 g) of combined IV/IA TXA was enough to control bleeding for patients after THA without increasing risk for PE/DVT. TXA was at least 5 times more potent than EACA. Timing and number of doses had few influences on blood conserving efficacy.
LEVEL OF EVIDENCE
Level I.
Topics: Humans; Tranexamic Acid; Aminocaproic Acid; Arthroplasty, Replacement, Hip; Antifibrinolytic Agents; Bayes Theorem; Network Meta-Analysis; Blood Loss, Surgical; Pulmonary Embolism; Administration, Intravenous
PubMed: 36527742
DOI: 10.1016/j.thromres.2022.11.010 -
Scientific Reports May 2023Current guidelines recommend anticoagulation (AC) for low and intermediate-risk pulmonary embolism (PE) and systemic thrombolysis (tPA) for high risk (massive) PE. How... (Meta-Analysis)
Meta-Analysis
Current guidelines recommend anticoagulation (AC) for low and intermediate-risk pulmonary embolism (PE) and systemic thrombolysis (tPA) for high risk (massive) PE. How these treatment options compare with other modalities of treatment such as catheter directed thrombolysis (CDT), ultrasound assisted catheter thrombolysis (USAT), and administering lower dose of thrombolytics (LDT) is unclear. There is no study that has compared all these treatment options. We conducted a systematic review and Bayesian network meta-analysis of randomized controlled trials in patients with submassive (intermediate risk) PE. Fourteen randomized controlled trials were included, comprising 2132 patients. On Bayesian network meta-analysis, a significant decrease in mortality was noted in tPA versus AC. There was no significant difference between USAT versus CDT. For risk of major bleeding, there was no significant difference in relative risk of major bleeding between tPA versus AC and USAT versus CDT. tPA was found to have a significantly higher risk of minor bleeding and a lower risk of recurrent PE compared to AC. Systemic thrombolysis is associated with a significant reduction in mortality and recurrent PE compared to anticoagulation but an increased risk of minor bleeding. There was no difference in risk of major bleeding. Our study also shows that while the newer modalities of treatment for pulmonary embolism are promising, there is lack of data to comment on the purported advantages.
Topics: Humans; Thrombolytic Therapy; Bayes Theorem; Network Meta-Analysis; Pulmonary Embolism; Fibrinolytic Agents; Hemorrhage; Treatment Outcome; Anticoagulants; Retrospective Studies
PubMed: 37137999
DOI: 10.1038/s41598-023-34348-9 -
Journal of Vascular Surgery. Venous and... Jan 2024Data on complications after upper extremity vein thrombosis (UEVT) are limited and heterogeneous. (Meta-Analysis)
Meta-Analysis
BACKGROUND
Data on complications after upper extremity vein thrombosis (UEVT) are limited and heterogeneous.
METHODS
The aim of the present study was to evaluate the pooled proportions of venous thromboembolism (VTE) recurrence, bleeding, and post-thrombotic syndrome (PTS) in patients with UEVT. A systematic literature review was conducted of PubMed, Embase, and the Cochrane Library databases from January 2000 to April 2023 in accordance with the PRISMA (preferred reporting items for systematic reviews and meta-analyses) guidelines. All studies included patients with UEVT and were published in English. Meta-analyses of VTE recurrence, bleeding, and of PTS after UEVT were performed to compute pooled estimates and associated 95% confidence intervals (CIs). Subgroup analyses of cancer-associated UEVT and catheter-associated venous thrombosis were conducted. Patients with Paget-Schroetter syndrome or effort thrombosis were excluded.
RESULTS
A total of 55 studies with 15,694 patients were included. The pooled proportions for VTE recurrence, major bleeding, and PTS were 4.8% (95% CI, 3.8%-6.2%), 3.0% (95% CI, 2.2%-4.0%), and 23.8% (95% CI, 17.0%-32.3%), respectively. The pooled proportion of VTE recurrence was 2.7% (95% CI, 1.6%-4.6%) for patients treated with direct oral anticoagulants (DOACs), 1.7% (95% CI, 0.8%-3.7%) for patients treated with low-molecular-weight heparin (LMWH), and 4.4% (95% CI, 1.5%-11.8%) for vitamin K antagonists (VKAs; P = .36). The pooled proportion was 6.3% (95% CI, 4.3%-9.1%) for cancer patients compared with 3.1% (95% CI, 2.1%-4.6%) for patients without cancer (P = .01). The pooled proportion of major bleeding for patients treated with DOACs, LMWH, and VKAs, was 2.1% (95% CI, 0.9%-5.1%), 3.2% (95% CI, 1.4%-7.2%), and 3.4% (95% CI, 1.4%-8.4%), respectively (P = .72). The pooled proportion of PTS for patients treated with DOACs, LMWH, and VKAs was 11.8% (95% CI, 6.5%-20.6%), 27.9% (95% CI, 20.9%-36.2%), and 24.5% (95% CI, 17.6%-33.1%), respectively (P = .02).
CONCLUSIONS
The results from this study suggest that UEVT is associated with significant rates of PTS and VTE recurrence. Treatment with DOACs might be associated with lower PTS rates than treatment with other anticoagulants.
Topics: Humans; Heparin, Low-Molecular-Weight; Venous Thromboembolism; Incidence; Vitamin K; Anticoagulants; Hemorrhage; Postthrombotic Syndrome; Upper Extremity Deep Vein Thrombosis; Neoplasms; Upper Extremity
PubMed: 37717788
DOI: 10.1016/j.jvsv.2023.09.002 -
European Journal of Trauma and... Jun 2023Anemia is one of the most common complications after hip fracture surgery. Tranexamic acid (TXA) has been considered effective in preventing anemia in total hip... (Meta-Analysis)
Meta-Analysis Review
PURPOSE
Anemia is one of the most common complications after hip fracture surgery. Tranexamic acid (TXA) has been considered effective in preventing anemia in total hip arthroplasty, but its role in hemiarthroplasty is debated. The aim of this systematic review was to investigate the efficacy and safety of perioperative TXA for hip hemiarthroplasty.
METHODS
A systematic literature search was performed to identify studies comparing adult patients who underwent hemiarthroplasty for a hip fracture with and without perioperative TXA. The primary outcome was transfusion rate. Secondary outcomes included postoperative hemoglobin, length of hospital stay, adverse events (i.e., deep venous thromboses and pulmonary embolism), and 30-day mortality.
RESULTS
In total, 13 articles were included, comprising 54,843 patients of whom 14.1% received perioperative TXA. TXA was applied intravenous in ten studies, topical in two studies, one study investigated both. Pooled results showed a significant reduction in transfusion rate (pooled RR: 0.48, 95% CI 0.40-0.58, p < 0.01). Postoperative hemoglobin and length of stay were investigated in nine studies, pooled results showed significant improvement of both outcomes for patients that received TXA. Eleven studies investigated thromboembolic events, and there was no statistical difference in deep venous thromboses (pooled RR: 0.67, 95% CI 0.18-2.56, p = 0.56) or pulmonary embolism (pooled RR: 1.10, 95% CI 0.45-2.68, p = 0.83) among the two groups. There was a significant reduction in 30-day mortality for patients that received TXA.
CONCLUSION
TXA can be considered effective and safe for patients undergoing hip hemiarthroplasty, with a reduction in transfusion rate and increase in postoperative hemoglobin, without increasing adverse events. Optimal timing, dosage, and type of administration of TXA remain unclear.
Topics: Adult; Humans; Tranexamic Acid; Antifibrinolytic Agents; Hemiarthroplasty; Blood Loss, Surgical; Pulmonary Embolism; Hemoglobins; Anemia; Hip Fractures; Arthroplasty, Replacement, Hip; Venous Thrombosis
PubMed: 36512031
DOI: 10.1007/s00068-022-02180-x -
Journal of Intensive Care Medicine Oct 2022Inhaled pulmonary vasodilators (IPVD) have been previously studied in patients with non-coronavirus disease-19 (COVID-19) related acute respiratory distress syndrome... (Meta-Analysis)
Meta-Analysis
Inhaled pulmonary vasodilators (IPVD) have been previously studied in patients with non-coronavirus disease-19 (COVID-19) related acute respiratory distress syndrome (ARDS). The use of IPVD has been shown to improve the partial pressure of oxygen in arterial blood (PaO), reduce fraction of inspired oxygen (FiO) requirements, and ultimately increase PaO/FiO (P/F) ratios in ARDS patients. However, the role of IPVD in COVID-19 ARDS is still unclear. Therefore, we performed this meta-analysis to evaluate the role of IPVD in COVID-19 patients. Comprehensive literature search of PubMed, Embase, Web of Science and Cochrane Library databases from inception through April 22, 2022 was performed for all published studies that utilized IPVD in COVID-19 ARDS patients. The single arm studies and case series were combined for a 1-arm meta-analysis, and the 2-arm studies were combined for a 2-arm meta-analysis. Primary outcomes for the 1-arm and 2-arm meta-analyzes were change in pre- and post-IPVD P/F ratios and mortality, respectively. Secondary outcomes for the 1-arm meta-analysis were change in pre- and post-IPVD positive end-expiratory pressure (PEEP) and lung compliance, and for the 2-arm meta-analysis the secondary outcomes were need for endotracheal intubation and hospital length of stay (LOS). 13 single arm retrospective studies and 5 case series involving 613 patients were included in the 1-arm meta-analysis. 3 studies involving 640 patients were included in the 2-arm meta-analysis. The pre-IPVD P/F ratios were significantly lower compared to post-IPVD, but there was no significant difference between pre- and post-IPVD PEEP and lung compliance. The mortality rates, need for endotracheal intubation, and hospital LOS were similar between the IPVD and standard therapy groups. Although IPVD may improve oxygenation, our investigation showed no benefits in terms of mortality compared to standard therapy alone. However, randomized controlled trials are warranted to validate our findings.
Topics: COVID-19; Humans; Oxygen; Respiratory Distress Syndrome; Retrospective Studies; Vasodilator Agents
PubMed: 35915994
DOI: 10.1177/08850666221118271 -
Thrombosis and Haemostasis Jul 2022The efficacy and safety of pharmacological thromboprophylaxis in patients with intracerebral hemorrhage (ICH) remains unclear. (Meta-Analysis)
Meta-Analysis
BACKGROUND
The efficacy and safety of pharmacological thromboprophylaxis in patients with intracerebral hemorrhage (ICH) remains unclear.
METHODS
A literature search was performed to collect studies comparing the effect of thromboprophylaxis in patients with ICH. The primary endpoints were deep vein thrombosis (DVT), pulmonary embolism (PE), and hematoma expansion or rebleeding. A meta-analytic approach was employed to estimate the relative risk (RR) by fitting fixed-effects (FE) and random-effects (RE) models.
RESULTS
A total of 28 studies representing 3,697 hospitalized patients with ICH were included. Thromboprophylaxis was initiated within 4 days following hospital presentation and continued for 10 to 14 days in most of studies. Compared with control, thromboprophylaxis was associated with a reduced risk of DVT (47/1,399 [3.4%] vs. 202/1,377 [14.7%]; FE: RR, 0.24; 95% CI, 0.18-0.32; RE: RR, 0.27; 95% CI, 0.19-0.39) as well as PE (9/953 [0.9%] vs. 37/864 [4.3%]; FE: RR, 0.33; 95% CI, 0.19-0.57; RE: RR, 0.37; 95% CI, 0.21-0.66). Thromboprophylaxis was not associated with increased risk of hematoma expansion or rebleeding (32/1,319 [2.4%] vs. 37/1,301 [2.8%]; FE: RR, 0.75; 95% CI, 0.48-1.18; RE: RR, 0.80; 95% CI, 0.49-1.30) or mortality (117/925 [12.6%] vs. 139/904 [15.4%]; FE: RR, 0.82; 95% CI, 0.65-1.03; RE: RR, 0.83; 95% CI, 0.66-1.04).
CONCLUSION
Thromboprophylaxis was effective in preventing DVT and PE without increasing the risk of hematoma expansion or bleeding among ICH patients. Future studies should explore the long-term effects of thromboprophylaxis in this population, particularly on the functional outcomes.
Topics: Anticoagulants; Cerebral Hemorrhage; Hematoma; Heparin; Heparin, Low-Molecular-Weight; Humans; Pulmonary Embolism; Venous Thromboembolism; Venous Thrombosis
PubMed: 35717948
DOI: 10.1055/s-0042-1744541 -
BMC Cardiovascular Disorders Sep 2023Randomized controlled trials (RCTs) comparing systemic thrombolysis to anticoagulation in intermediate risk pulmonary embolism (PE) have yielded mixed results. A prior... (Meta-Analysis)
Meta-Analysis
BACKGROUND
Randomized controlled trials (RCTs) comparing systemic thrombolysis to anticoagulation in intermediate risk pulmonary embolism (PE) have yielded mixed results. A prior meta-analysis on this topic had included studies that used lower than standard dose of thrombolytics and included thrombolytic agents that are no longer available. Hence, interpreting the findings of that paper is not valid in contemporary practice.
OBJECTIVES
We undertook a systematic review and meta-analysis of randomized controlled trials of systemic thrombolysis with newer thrombolytic agents vs anticoagulation in intermediate risk PE.
METHODS
This systematic review and meta-analysis is reported according to the Preferred Reporting Items for Systematic Reviews and Meta-Analysis (PRISMA) statement.
RESULTS
Nine randomized controlled trials were included in the study. We did not find any difference in in-hospital mortality (RR: 0.79; 95% CI: 0.42-1.50; I: 0) or risk of major bleeding (RR:2.08;95% CI: 0.98-4.42; I: 23.9%) between systemic thrombolysis and anticoagulation. Systemic thrombolysis was associated with lower risks for vasopressor use (RR: 0.27; 95% CI: 0.11-0.64, I: 0) and secondary/rescue thrombolysis (RR: 0.25; 95% CI: 0.14-0.45; I: 0). But systemic thrombolysis was found to have an increased risk of intracranial hemorrhage (RR: 4.55; 95% CI: 1.30-15.91; I:0). There was no difference in mechanical ventilation between the two groups (RR: 0.61; 95% CI: 0.31-1.19, I:0).
CONCLUSION
In our meta-analysis of randomized controlled trials of systemic thrombolysis vs anticoagulation in intermediate risk PE, we did not find any difference in in-hospital mortality or overall risk of major bleeding. With systemic thrombolysis, we found lower risks for vasopressor use and need for secondary/ rescue thrombolysis and an increased risk of intracranial hemorrhage.
Topics: Humans; Fibrinolytic Agents; Anticoagulants; Thrombolytic Therapy; Pulmonary Embolism; Hemorrhage; Intracranial Hemorrhages; Acute Disease; Treatment Outcome
PubMed: 37770910
DOI: 10.1186/s12872-023-03528-w -
Nagoya Journal of Medical Science Feb 2023We conducted this systematic review to clarify the clinical characteristics, complications, and outcomes of surgical and non-surgical patients with fragility fracture of... (Review)
Review
We conducted this systematic review to clarify the clinical characteristics, complications, and outcomes of surgical and non-surgical patients with fragility fracture of the pelvis (FFP). We searched PubMed, Google Scholar, Cochrane Library, Web of Science, and MEDLINE for English language articles on FFP. We calculated pooled odds ratios (ORs) or mean differences (MDs) of surgical patients in comparison to non-surgical patients for clinical characteristics (Rommens FFP classification, age, sex, dementia, osteoporosis, diabetes mellitus, pulmonary disease, cardiovascular disease, and malignancy), complications (pneumonia, urinary tract infection, cardiac event, thrombosis, pulmonary embolism, pressure ulcer, multiple organ failure, anemia caused by surgical bleeding, and surgical site infection), and outcomes (hospital mortality and one-year mortality). Five studies involving 1,090 patients with FFP (surgical patients, 432; non-surgical patients, 658) were included. FFP type III and IV (OR = 8.44; 95% confidence interval [CI] 5.99 to 11.88; <0.00001), a younger age (MD = -3.29; 95% CI -3.83 to -2.75; 0.00001), the absence of dementia (OR = 0.36; 95% CI 0.23 to 0.57; <0.0001), and the presence of osteoporosis (OR = 1.74; 95% CI 1.29 to 2.35; = 0.0003) were significantly associated with the surgical patients. Urinary tract infection (OR = 2.06; 95% CI 1.37 to 3.10; = 0.0005), anemia caused by surgical bleeding (OR = 4.55; 95% CI 1.95 to 10.62; = 0.0005), and surgical site infection (OR = 16.74; 95% CI 3.05 to 91.87; = 0.001) were significantly associated with the surgical patients. There were no significant differences in the outcomes between the surgical and non-surgical patients. Our findings may help to further understand the treatment strategy for FFP and improve clinical outcomes.
Topics: Humans; Surgical Wound Infection; Fractures, Bone; Blood Loss, Surgical; Urinary Tract Infections; Osteoporosis; Dementia; Pelvis
PubMed: 36923634
DOI: 10.18999/nagjms.85.1.35