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Journal of Stroke and Cerebrovascular... Dec 2015Cerebral microbleeds (CMBs) increase future intracerebral hemorrhage (ICH) risk after ischemic stroke (IS) or transient ischemic attack (TIA). However, whether... (Meta-Analysis)
Meta-Analysis Review
BACKGROUND AND PURPOSE
Cerebral microbleeds (CMBs) increase future intracerebral hemorrhage (ICH) risk after ischemic stroke (IS) or transient ischemic attack (TIA). However, whether CMB-related ICH risk depends on CMB quantity, CMB location, or antithrombotic agents is unclear. We performed a systematic review and meta-analysis to investigate CMB-related ICH risk, stratifying patients according to the quantity of CMB, the location of CMB, and the type of antithrombotic therapy used.
METHODS
Literature databases were searched for prospective cohorts reporting ICH outcomes in patients with IS or TIA with baseline CMB evaluation. We calculated pooled relative ratios (RRs) for ICH among patients with and without CMBs. Pooled RRs of CMB-related ICH were further calculated in subgroups stratified by CMB quantity, CMB location, and antithrombotic therapy.
RESULTS
Among the 10 included studies, the pooled RR of future ICH was 7.73 (95% confidence interval [CI], 4.07-14.70; P < .001) in CMB versus non-CMB patients. Subgroup analysis revealed that compared with non-CMB patients, multiple-CMB patients were at an increased risk for future ICH (RR = 8.02; 95% CI, 3.21-20.01; P < .001), whereas single-CMB patients did not incur this risk (RR = 2.33; 95% CI, .63-8.63; P = .205). A strong association was found between CMB presence and subsequent ICH in antiplatelet users (RR = 16.56; 95% CI, 3.68-74.42; P < .001). Studies on CMB-related ICH according to CMB locations and in anticoagulant users are lacking for subgroup analysis.
CONCLUSION
Our study revealed that patients with IS or TIA with multiple CMBs may incur a higher risk of future ICH, and the presence of CMBs in patients with IS or TIA using antiplatelet agents may significantly increase the subsequent ICH risk.
Topics: Humans; Intracranial Hemorrhages; Ischemic Attack, Transient; Platelet Aggregation Inhibitors; Recurrence; Risk Factors; Stroke; Treatment Outcome
PubMed: 26342996
DOI: 10.1016/j.jstrokecerebrovasdis.2015.08.003 -
International Journal of Stroke :... Apr 2015There is uncertainty surrounding the influence of prior antiplatelet agent use on outcomes after intravenous thrombolysis with recombinant tissue plasminogen activator... (Meta-Analysis)
Meta-Analysis Review
Prior antiplatelet agent use and outcomes after intravenous thrombolysis with recombinant tissue plasminogen activator in acute ischemic stroke: a meta-analysis of cohort studies and randomized controlled trials.
BACKGROUND
There is uncertainty surrounding the influence of prior antiplatelet agent use on outcomes after intravenous thrombolysis with recombinant tissue plasminogen activator in acute ischemic stroke.
AIM
We performed a systematic review with a final meta-analysis to evaluate the efficacy and safety of prior antiplatelet use before intravenous recombinant tissue plasminogen activator for acute ischemic stroke.
SUMMARY OF REVIEW
We searched PubMed and Embase databases from 1997 to 2014. Primary outcome was functional outcome at the end of follow-up; secondary outcomes were symptomatic intracranial hemorrhage and recanalization rate. The meta-analysis was performed with Review Manager 5.2 (Copenhagen: The Nordic Cochrane Centre, The Cochrane Collaboration, 2012). Eleven studies with a total of 19,453 patients were included. A total of 6517 (33.5%) patients who had received intravenous recombinant tissue plasminogen activator were taking antiplatelet agent before stroke onset. Pooled analysis demonstrated a clear trend that previous antiplatelet users had a reduced probability of good outcome, although it was not conventionally statistically significant (OR 0.86; 95% CI 0.73-1.01; P = 0.06). There was no difference in recanalization rate between two groups (OR 1.23; 95% CI 0.30-4.99; P = 0.77). The risk of symptomatic intracranial hemorrhage was significantly increased in the antiplatelet group (OR 1.65; 95% CI 1.44-1.90; P < 0.01).
CONCLUSIONS
In acute ischemic stroke patients receiving intravenous recombinant tissue plasminogen activator therapy, prior antiplatelet agent use did not lead to a significant difference in functional outcome, although it significantly increased the risk of symptomatic intracranial hemorrhage. Recanalization rate was not different between two groups. In the subgroup analysis, prior clopidogrel mono therapy may not increase the risk of symptomatic intracranial hemorrhage, which will need further studies to confirm.
Topics: Cohort Studies; Databases, Bibliographic; Humans; Injections, Intravenous; Ischemia; Outcome Assessment, Health Care; Platelet Aggregation Inhibitors; Randomized Controlled Trials as Topic; Stroke; Thrombolytic Therapy; Tissue Plasminogen Activator
PubMed: 25545076
DOI: 10.1111/ijs.12431 -
BMJ Evidence-based Medicine May 2024To compare dual antiplatelet therapy (DAPT) de-escalation with five alternative DAPT strategies in patients with acute coronary syndrome (ACS) undergoing percutaneous... (Meta-Analysis)
Meta-Analysis
De-escalation of dual antiplatelet therapy for patients with acute coronary syndrome after percutaneous coronary intervention: a systematic review and network meta-analysis.
OBJECTIVES
To compare dual antiplatelet therapy (DAPT) de-escalation with five alternative DAPT strategies in patients with acute coronary syndrome (ACS) undergoing percutaneous coronary intervention (PCI).
DESIGN
We conducted a systematic review and network meta-analysis (NMA). Parallel-arm randomised controlled trials (RCTs) comparing DAPT strategies were included and arms of interest were compared via NMA. Partial ranking of each identified arm and for each investigated endpoint was also performed.
SETTING AND PARTICIPANTS
Adult patients with ACS (≥18 years) undergoing PCI with indications for DAPT.
SEARCH METHODS
A comprehensive search covered several databases (PubMed, Embase, Cochrane Central, MEDLINE, Conference Proceeding Citation Index-Science) from inception to 15 October 2023. Medical subject headings and keywords related to ACS, PCI and DAPT interventions were used. Reference lists of included studies were screened. Clinical trials registers were searched for ongoing or unpublished trials.
INTERVENTIONS
Six strategies were assessed: T1 arm: acetylsalicylic acid (ASA) and prasugrel for 12 months; T2 arm: ASA and low-dose prasugrel for 12 months; T3 arm: ASA and ticagrelor for 12 months; T4 arm: DAPT de-escalation (ASA+P2Y12 inhibitor for 1-3 months, then single antiplatelet therapy with potent P2Y12 inhibitor or DAPT with clopidogrel); T5 arm: ASA and clopidogrel for 12 months; T6 arm: ASA and clopidogrel for 3-6 months.
MAIN OUTCOME MEASURES
Primary outcome: Cardiovascular mortality.
SECONDARY OUTCOMES
bleeding events (all, major, minor), stent thrombosis (ST), stroke, myocardial infarction (MI), all-cause mortality, major adverse cardiovascular events (MACE).
RESULTS
23 RCTs (75 064 patients with ACS) were included. No differences in cardiovascular mortality, all-cause death, recurrent MI or MACE were found when the six strategies were compared, although with different levels of certainty of evidence. ASA and clopidogrel for 12 or 3-6 months may result in a large increase of ST risk versus ASA plus full-dose prasugrel (OR 2.00, 95% CI 1.14 to 3.12, and OR 3.42, 95% CI 1.33 to 7.26, respectively; low certainty evidence for both comparisons). DAPT de-escalation probably results in a reduced risk of all bleedings compared with ASA plus full-dose 12-month prasugrel (OR 0.49, 95% CI 0.26 to 0.81, moderate-certainty evidence) and ASA plus 12-month ticagrelor (OR 0.52, 95% CI 0.33 to 0.75), while it may not increase the risk of ST. ASA plus 12-month clopidogrel may reduce all bleedings versus ASA plus full-dose 12-month prasugrel (OR 0.66, 95% CI 0.42 to 0.94, low certainty) and ASA plus 12-month ticagrelor (OR 0.70, 95% CI 0.52 to 0.89).
CONCLUSIONS
DAPT de-escalation and ASA-clopidogrel regimens may reduce bleeding events compared with 12 months ASA and potent P2Y12 inhibitors. 3-6 months or 12-month aspirin-clopidogrel may increase ST risk compared with 12-month aspirin plus potent P2Y12 inhibitors, while DAPT de-escalation probably does not.
Topics: Humans; Acute Coronary Syndrome; Percutaneous Coronary Intervention; Platelet Aggregation Inhibitors; Network Meta-Analysis; Dual Anti-Platelet Therapy; Aspirin; Randomized Controlled Trials as Topic; Hemorrhage; Prasugrel Hydrochloride
PubMed: 38242567
DOI: 10.1136/bmjebm-2023-112476 -
Brain and Behavior Oct 2022We aimed to investigate the prescription of antithrombotic drugs (including anticoagulants and antiplatelets) and medication adherence after stroke. (Meta-Analysis)
Meta-Analysis Review
OBJECTIVES
We aimed to investigate the prescription of antithrombotic drugs (including anticoagulants and antiplatelets) and medication adherence after stroke.
METHODS
We performed a systematic literature search across MEDLINE and Embase, from January 1, 2015, to February 17, 2022, to identify studies reporting antithrombotic medications (anticoagulants and antiplatelets) post stroke. Two people independently identified reports to include, extracted data, and assessed the quality of included studies according to the Newcastle-Ottawa scale. Where possible, data were pooled using random-effects meta-analysis.
RESULTS
We included 453,625 stroke patients from 46 studies. The pooled proportion of prescribed antiplatelets and anticoagulants among patients with atrial fibrillation (AF) was 62% (95% CI: 57%-68%), and 68% (95% CI: 58%-79%), respectively. The pooled proportion of patients who were treated according to the recommendation of guidelines of antithrombotic medications from four studies was 67% (95% CI: 41%-93%). It was reported that 11% (95% CI: 2%-19%) of patients did not receive antithrombotic medications. Good adherence to antiplatelet, anticoagulant, and antithrombotic medications was 78% (95% CI: 67%-89%), 71% (95% CI: 57%-84%), and 73% (95% CI: 59%-86%), respectively.
CONCLUSION
In conclusion, we found that less than 70% of patients were prescribed and treated according to the recommended guidelines of antithrombotic medications, and good adherence to antithrombotic medications is only 73%. Prescription rate and good adherence to antithrombotic medications still need to be improved among stroke survivors.
Topics: Anticoagulants; Fibrinolytic Agents; Humans; Platelet Aggregation Inhibitors; Prescriptions; Stroke; Survivors
PubMed: 36067030
DOI: 10.1002/brb3.2752 -
Surgical Endoscopy Jun 2022Antithrombotic agents may increase the bleeding tendency and affect the performance of fecal immunochemical test (FIT). We aimed to evaluate the impact of antithrombotic... (Meta-Analysis)
Meta-Analysis
BACKGROUND
Antithrombotic agents may increase the bleeding tendency and affect the performance of fecal immunochemical test (FIT). We aimed to evaluate the impact of antithrombotic agents on the performance of FIT through a systematic review and meta-analysis.
METHODS
All relevant studies published between January 1980 and September 2020 that examined the diagnostic performance of FIT were searched through MEDLINE, EMBASE, and Cochrane Library databases. We performed a meta-analysis for the positive predictive value (PPV) of FIT for detecting advanced colorectal neoplasia (ACRN) or colorectal cancer (CRC) according to the administration of antithrombotic agents including aspirin, antiplatelet agents, and oral anticoagulants (OACs).
RESULTS
Thirteen studies with 27,518 patients were included. Of these, 11 studies with data required for the calculation of pooled PPV were included in the meta-analysis. The pooled PPV of FIT for detecting ACRN was significantly lower in antithrombotic agent users than in non-users (odds ratio [OR] [95% confidence interval [CI]]: aspirin, 0.82 [0.68-0.99]; antiplatelet agents, 0.82 [0.69-0.96]; OACs, 0.66 [0.52-0.84]). For detecting CRC, antithrombotic agent use tended to be associated with a reduced PPV (aspirin, 0.76 [0.51-1.14]; antiplatelet agents, 0.73 [0.52-1.02]; OACs, 0.60 [0.25-1.44]). In the subgroup analysis, a FIT cutoff value of 15 μg Hb/g feces tended to be associated with lower PPVs compared to a value of 20 μg Hb/g feces in antithrombotic agent users.
CONCLUSIONS
Aspirin, antiplatelet agents, and OACs significantly lowered the PPV of FIT for detecting ACRN. These drugs may increase the false-positive of FIT.
Topics: Anticoagulants; Aspirin; Colorectal Neoplasms; Early Detection of Cancer; Feces; Fibrinolytic Agents; Humans; Platelet Aggregation Inhibitors
PubMed: 34716478
DOI: 10.1007/s00464-021-08774-7 -
British Journal of Clinical Pharmacology Mar 2014The PlA1/A2 polymorphism of glycoprotein IIIa (GPIIIa) has been associated with both antiplatelet drug resistance and increased cardiovascular events. The aim of this... (Meta-Analysis)
Meta-Analysis Review
AIM
The PlA1/A2 polymorphism of glycoprotein IIIa (GPIIIa) has been associated with both antiplatelet drug resistance and increased cardiovascular events. The aim of this study was to conduct the first meta-analysis investigating the association between carriage of the PlA2 allele and resistance to currently licensed antiplatelet drugs.
METHODS
Electronic databases (MEDLINE and EMBASE) were searched for all articles evaluating genetic polymorphisms of GPIIIa. For studies where antiplatelet resistance was measured using validated techniques, pooled odds ratios (ORs) were calculated using fixed effects and random effects models.
RESULTS
Sixteen studies were eligible for statistical analysis and included 1650 PlA1 homozygous subjects and 668 carriers of the PlA2 allele. For carriers of the PlA2 allele, OR 0.924 (n = 2318; 95% CI 0.743, 1.151; P = 0.481) was observed for resistance to any antiplatelet drug, OR 0.862 (n = 2085; 95% CI 0.685, 1.086; P = 0.208) for resistance to aspirin and OR 1.429 (n = 233; 95% CI 0.791, 2.582; P = 0.237) for resistance to clopidogrel. In the aspirin cohort, sub-group analysis revealed no statistical association in either healthy subjects or those with cardiovascular disease. PlA2 carriage was marginally associated with aspirin sensitivity using the fixed effects model when identified by the PFA-100 assay (n = 1151; OR 0.743, 95% CI 0.558, 0.989; P = 0.041) but with significant heterogeneity (I(2) = 55%; P = 0.002). Significance was lost with analysis using a random effects model.
CONCLUSIONS
The totality of published data does not support an association between carriage of the PlA2 allele and antiplatelet drug resistance. Significant heterogeneity indicates the need for larger studies using validated and standardized assays.
Topics: Drug Resistance; Gene Frequency; Genotype; Humans; Integrin beta3; Odds Ratio; Phenotype; Platelet Aggregation; Platelet Aggregation Inhibitors; Platelet Function Tests; Polymorphism, Genetic; Risk Factors
PubMed: 23834376
DOI: 10.1111/bcp.12204 -
Heart Failure Reviews May 2022While the most recent evidence suggests a lack of benefit, antithrombotic therapy is still extensively prescribed in patients with Takotsubo syndrome (TTS). The... (Meta-Analysis)
Meta-Analysis Review
While the most recent evidence suggests a lack of benefit, antithrombotic therapy is still extensively prescribed in patients with Takotsubo syndrome (TTS). The objective of this study was to determine whether patients with TTS benefit from anti-aggregation, in terms of either short-term or long-term outcomes. A systematic review and meta-analysis was conducted. A comprehensive search of the literature included MEDLINE, Cochrane Library, Clinicaltrials.gov, EU Clinical Trial Register, References, and contact with the authors. Methodological quality assessment and data extraction were systematically performed. The review adhered to the PRISMA framework guidelines. A total of 86 citations were identified, six being eligible for inclusion, for a total of 1997 patients. One of them considered both short-term and long-term outcomes. One reported outcomes during the index event, while the remaining four focused on potential long-term benefits. They were all retrospective cohort studies.Based on our data, the long-term use of antiplatelet therapy (AT) led to a significantly higher incidence of the composite outcome (OR: 1.54; 95% CI 1.09-2.17; p = 0.014) and overall mortality (OR 1.72; 95% CI 1.07-2.77; p = 0.027). The analysis did not show a statistically significant difference in TTS recurrences, stroke/TIA, and MI or CAD worsening with AT compared with no anti-aggregation. The AT in this settings did not show any clear benefit in improving the long-term outcomes, and it may be even detrimental and it may be detrimental. These results warrant further future research and the design of adequately powered randomized controlled trials focusing on the impact of aspirin on the outcomes in patients presenting with TTS.
Topics: Aspirin; Humans; Platelet Aggregation Inhibitors; Prognosis; Retrospective Studies; Takotsubo Cardiomyopathy
PubMed: 33779884
DOI: 10.1007/s10741-021-10099-5 -
JAMA Network Open Mar 2024The optimal duration of dual antiplatelet therapy (DAPT) for older adults after percutaneous coronary intervention (PCI) is uncertain because they are simultaneously at... (Meta-Analysis)
Meta-Analysis
IMPORTANCE
The optimal duration of dual antiplatelet therapy (DAPT) for older adults after percutaneous coronary intervention (PCI) is uncertain because they are simultaneously at higher risk for both ischemic and bleeding events.
OBJECTIVE
To investigate the association of abbreviated DAPT with adverse clinical events among older adults after PCI.
DATA SOURCES
The Cochrane Library, Google Scholar, Embase, MEDLINE, PubMed, Scopus, and Web of Science were searched from inception to August 9, 2023.
STUDY SELECTION
Randomized clinical trials comparing any 2 of 1, 3, 6, and 12 months of DAPT were included if they reported results for adults aged 65 years or older or 75 years or older.
DATA EXTRACTION AND SYNTHESIS
The Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) reporting guideline was used to abstract data and assess data quality. Risk ratios for each duration of DAPT were calculated with alternation of the reference group.
MAIN OUTCOMES AND MEASURES
The primary outcome of interest was net adverse clinical events (NACE). Secondary outcomes were major adverse cardiovascular events (MACE) and bleeding.
RESULTS
In 14 randomized clinical trials comprising 19 102 older adults, no differences were observed in the risks of NACE or MACE for 1, 3, 6, and 12 months of DAPT. However, 3 months of DAPT was associated with a lower risk of bleeding compared with 6 months of DAPT (relative risk [RR], 0.50 [95% CI, 0.29-0.84]) and 12 months of DAPT (RR, 0.57 [95% CI, 0.45-0.71]) among older adults. One month of DAPT was also associated with a lower risk of bleeding compared with 6 months of DAPT (RR, 0.68 [95% CI, 0.54-0.86]).
CONCLUSIONS AND RELEVANCE
In this systematic review and meta-analysis of different durations of DAPT for older adults after PCI, an abbreviated DAPT duration was associated with a lower risk of bleeding without any concomitant increase in the risk of MACE or NACE despite the concern for higher-risk coronary anatomy and comorbidities among older adults. This study, which represents the first network meta-analysis of this shortened treatment for older adults, suggests that clinicians may consider abbreviating DAPT for older adults.
Topics: Humans; Aged; Platelet Aggregation Inhibitors; Percutaneous Coronary Intervention; Network Meta-Analysis; Heart; Data Accuracy
PubMed: 38546647
DOI: 10.1001/jamanetworkopen.2024.4000 -
PloS One 2015There is a lack of consensus regarding which type of antiplatelet agent should be used in patients with peripheral arterial disease (PAD) and little is known on the... (Comparative Study)
Comparative Study Meta-Analysis Review
Comparative Efficacy and Safety of Different Antiplatelet Agents for Prevention of Major Cardiovascular Events and Leg Amputations in Patients with Peripheral Arterial Disease: A Systematic Review and Network Meta-Analysis.
There is a lack of consensus regarding which type of antiplatelet agent should be used in patients with peripheral arterial disease (PAD) and little is known on the advantages and disadvantages of dual antiplatelet therapy. We conducted a systematic review and network meta-analysis of available randomized controlled trials (RCT) comparing different antiplatelet drugs (Aspirin, Ticlopidine, Clopidogrel, Ticagrelor, Cilostazol, Picotamide and Vorapaxar as monotherapies or in combination with aspirin) in PAD patients (PROSPERO public database; CRD42014010299).We collated evidence from previous relevant meta-analyses and searched online databases. Primary efficacy endpoints were: (1) the composite rate of major adverse cardiovascular events (MACE; including vascular deaths, non-fatal myocardial infarction and non-fatal stroke), and (2) the rate of major leg amputations. The primary safety endpoint was the rate of severe bleeding events. Bayesian models were employed for multiple treatment comparisons and risk-stratified hierarchies of comparative efficacy were produced to aid medical decision making. Number-Needed-to-Treat (NNT) and Number-Needed-to-Harm (NNH) are reported in case of significant results. We analyzed 49 RCTs comprising 34,518 patients with 88,358 person-years of follow-up with placebo as reference treatment. Aspirin, Cilostazol, Vorapaxar and Picotamide were ineffective in reducing MACE. A significant MACE reduction was noted with Ticagrelor plus aspirin (RR: 0.67; 95%CrI: 0.46-0.96, NNT = 66), Clopidogrel (RR: 0.72; 95%CrI: 0.58-0.91, NNT = 80), Ticlopidine (RR: 0.75; 95%CrI: 0.58-0.96, NNT = 87), and Clopidogrel plus aspirin (RR: 0.78; 95%CrI: 0.61-0.99, NNT = 98). Dual antiplatelet therapy with Clopidogrel plus aspirin significantly reduced major amputations following leg revascularization (RR: 0.68; 95%CrI: 0.46-0.99 compared to aspirin, NNT = 94). The risk of severe bleeding was significantly higher with Ticlopidine (RR: 5.03; 95%CrI: 1.23-39.6, NNH = 25), Vorapaxar (RR: 1.80; 95%CrI: 1.22-2.69, NNH = 130), and Clopidogrel plus aspirin (RR: 1.48; 95%CrI: 1.05-2.10, NNH = 215). Clopidogrel monotherapy showed the most favourable benefit-harm profile (79% cumulative rank probability best and 77% cumulative rank probability safest). In conclusion, Clopidogrel should be the indicated antiplatelet agent in PAD patients. Dual antiplatelet therapy with aspirin and Clopidogrel can reduce the rate of major leg amputations following revascularization, but carries a slightly higher risk of severe bleeding.
Topics: Amputation, Surgical; Databases, Factual; Female; Hemorrhage; Humans; Leg; Male; Myocardial Infarction; Peripheral Arterial Disease; Platelet Aggregation Inhibitors; Postoperative Complications; Randomized Controlled Trials as Topic; Stroke
PubMed: 26274912
DOI: 10.1371/journal.pone.0135692 -
Pharmacological Research Jun 2021To systematically review contemporary data on the safety of clopidogrel and newer antiplatelet agents in pregnant women, with particular attention to maternal and...
OBJECTIVE
To systematically review contemporary data on the safety of clopidogrel and newer antiplatelet agents in pregnant women, with particular attention to maternal and neonatal complications.
METHODS
The review protocol was published via PROSPERO (ID 42020165235) and conducted in accordance with the Preferred Reporting Items for Systematic Reviews and Meta-Analysis (PRISMA). Databases were searched using MeSH and free text terms encompassing the included antiplatelets, relevant indications, and pregnancy. Included studies reported the drug dose, the stage of pregnancy at which it was administered, and at least one primary or secondary outcome relating to pregnancy. The primary outcome was reporting of complications associated with antiplatelet use in pregnancy.
RESULTS
The search yielded 5271 results. 39 publications were included, incorporating 42 live births. The mean age of women was 34.6 years. Seven different antiplatelet agents were described, clopidogrel being most frequent (n = 37). 14 women received antiplatelet therapy in the first trimester. 14 women had regional anaesthesia (12 while taking clopidogrel), all without complication. Two women developed bleeding post caesarean section. There were no recorded neonatal delivery complications. Two neonates had congenital anomalies not felt to be related to maternal antiplatelet use.
CONCLUSIONS
This systematic review describes outcomes for both mothers and neonates when exposed to clopidogrel at varying durations throughout gestation, and does not suggest higher than acceptable risk, with a congenital anomaly rate comparable to background risk. Evidence for other antiplatelet agents remains limited. Regional anaesthesia should be offered, with recommendation to stop prior to delivery in line with national guidance and in the context of individualised decision making.
Topics: Adult; Anesthesia, Conduction; Anesthesia, Obstetrical; Female; Fetus; Humans; Infant, Newborn; Middle Aged; Platelet Aggregation Inhibitors; Pregnancy; Pregnancy Complications; Young Adult
PubMed: 33716166
DOI: 10.1016/j.phrs.2021.105547