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Träfflista för sökning "WFRF:(Mehdipoor Ghazaleh) "

Sökning: WFRF:(Mehdipoor Ghazaleh)

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1.
  • Bikdeli, Behnood, et al. (författare)
  • Individual Patient Data Pooled Analysis of Randomized Trials of Bivalirudin versus Heparin in Acute Myocardial Infarction : Rationale and Methodology
  • 2020
  • Ingår i: Thrombosis and Haemostasis. - : Schattauer GmbH. - 0340-6245. ; 120:2, s. 348-361
  • Tidskriftsartikel (refereegranskat)abstract
    • Background Individual randomized controlled trials (RCTs) of periprocedural anticoagulation with bivalirudin versus heparin during percutaneous coronary intervention (PCI) have reported conflicting results. Study-level meta-analyses lack granularity to adjust for confounders, explore heterogeneity, or identify subgroups that may particularly benefit or be harmed.Objective To overcome these limitations, we sought to develop an individual patient-data pooled database of RCTs comparing bivalirudin versus heparin.Methods We conducted a systematic review to identify RCTs in which ≥1,000 patients with acute myocardial infarction (AMI) undergoing PCI were randomized to bivalirudin versus heparin.Results From 738 identified studies, 8 RCTs met the prespecified criteria. The principal investigators of each study agreed to provide patient-level data. The data were pooled and checked for accuracy against trial publications, with discrepancies addressed by consulting with the trialists. Consensus-based definitions were created to resolve differing antithrombotic, procedural, and outcome definitions. The project required 3.5 years to complete, and the final database includes 27,409 patients (13,346 randomized to bivalirudin and 14,063 randomized to heparin).Conclusion We have created a large individual patient database of bivalirudin versus heparin RCTs in patients with AMI undergoing PCI. This endeavor may help identify the optimal periprocedural anticoagulation regimen for patient groups with different relative risks of adverse ischemic versus bleeding events, including those with ST-segment and non-ST-segment elevation MI, radial versus femoral access, use of a prolonged bivalirudin infusion or glycoprotein inhibitors, and others. Adherence to standardized techniques and rigorous validation processes should increase confidence in the accuracy and robustness of the results..
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2.
  • Chen, Shmuel, et al. (författare)
  • Relationship between primary percutaneous coronary intervention time of day, infarct size, microvascular obstruction and prognosis in ST-segment elevation myocardial infarction.
  • 2021
  • Ingår i: Coronary artery disease. - 1473-5830. ; 32:4, s. 267-274
  • Tidskriftsartikel (refereegranskat)abstract
    • Whether the time of day of primary percutaneous coronary intervention (pPCI) in patients with ST-segment elevation myocardial infarction (STEMI) is associated with infarct size, microvascular obstruction (MVO), and prognosis is uncertain. We compared infarct size assessed by cardiac MRI (CMR) and clinical outcomes in STEMI patients according to the pPCI time of day from a large, individual patient-data pooled database.We pooled patient-level data from five randomized pPCI trials in which infarct size was measured within 1 month by CMR. Patients were categorized according to the pPCI time of day.Among 1519 patients with STEMI, 794 (52.2%) underwent pPCI between 8:00 h and 15:59 h, 431 (28.4%) between 16:00 h and 23:59 h, and 294 (19.4%) between 24:00 h and 7:59 h. Infarct size was assessed in 1331 patients at a median of 3.0 days (interquartile range 2.0-5.0) after pPCI. Compared with patients who underwent PCI between 8:00 h and 15:59 h, infarct size was not significantly different for patients undergoing PCI from 16:00 h to 23:59 h [adjusted difference -0.7%, 95% confidence interval (CI) -3.1 to 1.7%, P = 0.46] or 24:00 h to 7:59 h (adjusted difference 0.9%, 95% CI -1.2 to 3.1%, P = 0.29). The time of day of pPCI was also unrelated to MVO and the 1-year risks of death or heart failure hospitalization.In this large-scale, individual patient data pooled analysis, no association was found between the time of day of pPCI and infarct size, MVO, or prognosis after STEMI.
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