Farrel Hellig
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View article: Comparative safety and efficacy of new-generation single-layer polytetrafluorethylene- versus polyurethane-covered stents in patients with coronary artery perforation for the RECOVER (REsults after percutaneous interventions with COVERed stents) Investigators
Comparative safety and efficacy of new-generation single-layer polytetrafluorethylene- versus polyurethane-covered stents in patients with coronary artery perforation for the RECOVER (REsults after percutaneous interventions with COVERed stents) Investigators Open
New-generation single-layer polytetrafluorethylene (PTFE-) or polyurethane (PU-) covered stent (CS) for the treatment of coronary artery perforation (CAP) during PCI offer high procedural efficacy. To evaluate the comparative long-term saf…
View article: Ultra-Low-Contrast PCI
Ultra-Low-Contrast PCI Open
Since its inception, percutaneous coronary intervention (PCI) has relied upon vessel opacification with iodinated contrast to plan, guide, and assess the results of the procedure. Yet revisiting this fundamental concept is important in con…
View article: Coronary Revascularization Guided With Fractional Flow Reserve or Instantaneous Wave-Free Ratio
Coronary Revascularization Guided With Fractional Flow Reserve or Instantaneous Wave-Free Ratio Open
Importance The differences between the use of fractional flow reserve (FFR) or instantaneous wave-free ratio (iFR) in the long term are unknown. Objective To compare long-term outcomes of iFR- and FFR-based strategies to guide revasculariz…
View article: The South African SHARE-TAVI registry: incidence and risk factors leading to conduction disturbances requiring permanent pacemaker implantation
The South African SHARE-TAVI registry: incidence and risk factors leading to conduction disturbances requiring permanent pacemaker implantation Open
CITATION: Du Toit, R., et al. 2021. The South African SHARE-TAVI registry : incidence and risk factors leading to conduction disturbances requiring permanent pacemaker implantation. SA Heart, 18(2):88-95, doi:10.24170/18-2-4881.
View article: Sealing of Coronary Perforations With a Second-Generation Covered Stent Graft - Results From the PAST-PERF Registry
Sealing of Coronary Perforations With a Second-Generation Covered Stent Graft - Results From the PAST-PERF Registry Open
The PAST-PERF registry demonstrates favorably high rates of successful stent delivery and sealing of coronary perforations using a second-generation covered stent with low target lesion revascularization and stent thrombosis rates. Specifi…
View article: Transcatheter Mitral Valve Replacement After Surgical Repair or Replacement
Transcatheter Mitral Valve Replacement After Surgical Repair or Replacement Open
Background: Mitral valve-in-valve (ViV) and valve-in-ring (ViR) are alternatives to surgical reoperation in patients with recurrent mitral valve failure after previous surgical valve repair or replacement. Our aim was to perform a large-sc…
View article: Comparison of Major Adverse Cardiac Events Between Instantaneous Wave-Free Ratio and Fractional Flow Reserve–Guided Strategy in Patients With or Without Type 2 Diabetes
Comparison of Major Adverse Cardiac Events Between Instantaneous Wave-Free Ratio and Fractional Flow Reserve–Guided Strategy in Patients With or Without Type 2 Diabetes Open
ClinicalTrials.gov identifier: NCT02053038.
View article: Pre-Angioplasty Instantaneous Wave-Free Ratio Pullback Predicts Hemodynamic Outcome In Humans With Coronary Artery Disease
Pre-Angioplasty Instantaneous Wave-Free Ratio Pullback Predicts Hemodynamic Outcome In Humans With Coronary Artery Disease Open
In tandem and diffuse coronary disease, iFR pullback predicted the physiological outcome of PCI with a high degree of accuracy. Compared with angiography alone, availability of iFR pullback altered revascularization procedural planning in …
View article: Strategies in mechanical interventions for acute MI: facilitated and rescue PCI
Strategies in mechanical interventions for acute MI: facilitated and rescue PCI Open
Primary Percutaneous Coronary Intervention (PCI) is the superior strategy for treating acute ST-elevation myocardial infarction (STEMI) as an initial strategy within the first 6 hours from symptom onset. Facilitation of PCI by the use of p…
View article: Use of the Instantaneous Wave-free Ratio or Fractional Flow Reserve in PCI
Use of the Instantaneous Wave-free Ratio or Fractional Flow Reserve in PCI Open
Coronary revascularization guided by iFR was noninferior to revascularization guided by FFR with respect to the risk of major adverse cardiac events at 1 year. The rate of adverse procedural signs and symptoms was lower and the procedural …