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001-es BibID:BIBFORM100404
035-os BibID:(cikkazonosító)784220
Első szerző:Kőszegi Zsolt (kardiológus, belgyógyász)
Cím:Anatomical Assessment vs. Pullback REsting full-cycle rAtio (RFR) Measurement for Evaluation of Focal and Diffuse CoronarY Disease : rationale and Design of the "READY Register" / Kőszegi Zsolt, Berta Balázs, Tóth Gábor G., Tar Balázs, Üveges Áron, Ágoston András, Szücs Attila, Szabó Gábor Tamás, Barta Judit, Szük Tibor, Czuriga Dániel, Komócsi András, Ruzsa Zoltán
Dátum:2021
ISSN:2297-055X 2297-055X
Megjegyzések:Background: The morphology and functional severity of coronary stenosis show poor correlation. However, in clinical practice, the visual assessment of the invasive coronary angiography is still the most common means for evaluating coronary disease. The fractional flow reserve (FFR), the coronary flow reserve (CFR), and the resting full-cycle ratio (RFR) are established indices to determine the hemodynamic significance of a coronary stenosis. Design/Methods: The READY register (NCT04857762) is a prospective, multicentre register of patients who underwent invasive intracoronary FFR and RFR measurement. The main aim of the registry is to compare the visual estimate of coronary lesions and the functional severity of the stenosis assessed by FFR, as well as the RFR pullback. Characterizations of the coronary vessel for predominantly focal, diffuse, or mixed type disease according to visual vs. RFR pullback determination will be compared. The secondary endpoint of the study is a composite of major adverse cardiac events, including death, myocardial infarction, and repeat coronary revascularization at 1 year. These endpoints will be compared in patients with non-ischemic FFR in the subgroup of cases where the local pressure drop indicates a focal lesion according to the definition of ?RFR > 0.05 (for <25 mm segment length) and in the subgroup without significant ?RFR. In case of an FFR value above 0.80, an extended physiological analysis is planned to diagnose or exclude microvascular disease using the CFR/FFR index. This includes novel flow dynamic modeling for CFR calculation (CFRp-3D). Conclusion: The READY register will define the effect of RFR measurement on visual estimation-based clinical decision-making. It can identify a prognostic value of ?RFR during RFR pullback, and it would also explore the frequency of microvascular disease in the patient population with FFR > 0.80. Clinical Trial Registration: ClinicalTrials.gov (NCT04857762).
Tárgyszavak:Orvostudományok Klinikai orvostudományok idegen nyelvű folyóiratközlemény külföldi lapban
folyóiratcikk
resting full-cycle ratio (RFR)
microvascular coronary disease
fractional flow reserve (FFR)
coronary flow reserve (CFR)
coronary artery disease
Megjelenés:Frontiers in Cardiovascular Medicine. - 8 (2021), p. 1-7. -
További szerzők:Berta Balázs Tóth Gábor G. Tar Balázs (1970-) (orvos) Üveges Áron Ágoston András Szücs Attila Szabó Gábor Tamás (1982-) (kardiológus) Barta Judit (1975-) (kardiológus) Szűk Tibor (1967-) (kardiológus) Czuriga Dániel (1982-) (kardiológus) Komócsi András Ruzsa Zoltán
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001-es BibID:BIBFORM102029
Első szerző:Tar Balázs (orvos)
Cím:Pressure- and 3D-Derived Coronary Flow Reserve with Hydrostatic Pressure Correction : comparison with Intracoronary Doppler Measurements / Balázs Tar, András Ágoston, Áron Üveges, Gábor Tamás Szabó, Tibor Szűk, András Komócsi, Dániel Czuriga, Benjamin Csippa, György Paál, Zsolt Kőszegi
Dátum:2022
ISSN:2075-4426
Megjegyzések:Purpose: To develop a method of coronary flow reserve (CFR) calculation derived from three-dimensional (3D) coronary angiographic parameters and intracoronary pressure data during fractional flow reserve (FFR) measurement. Methods: Altogether 19 coronary arteries of 16 native and 3 stented vessels were reconstructed in 3D. The measured distal intracoronary pressures were corrected to the hydrostatic pressure based on the height differences between the levels of the vessel orifice and the sensor position. Classical fluid dynamic equations were applied to calculate the flow during the resting state and vasodilatation based on morphological data and intracoronary pressure values. 3D-derived coronary flow reserve (CFRp-3D) was defined as the ratio between the calculated hyperemic and the resting flow and was compared to the CFR values simultaneously measured by the Doppler sensor (CFRDoppler). Results: Haemodynamic calculations using the distal coronary pressures corrected for hydrostatic pressures showed a strong correlation between the individual CFRp-3D values and the CFRDoppler measurements (r = 0.89, p < 0.0001). Hydrostatic pressure correction increased the specificity of the method from 46.1% to 92.3% for predicting an abnormal CFRDoppler < 2. Conclusions: CFRp-3D calculation with hydrostatic pressure correction during FFR measurement facilitates a comprehensive hemodynamic assessment, supporting the complex evaluation of macro-and microvascular coronary artery disease.
Tárgyszavak:Orvostudományok Klinikai orvostudományok idegen nyelvű folyóiratközlemény külföldi lapban
folyóiratcikk
stable angina
fractional flow reserve (FFR)
coronary flow reserve (CFR)
quantitative coronary angiography
coronary microvascular disease
microvascular resistance reserve (MRR)
Megjelenés:Journal of Personalized Medicine. - 12 : 5 (2022), p. 1-13. -
További szerzők:Ágoston András Üveges Áron Szabó Gábor Tamás (1982-) (kardiológus) Szűk Tibor (1967-) (kardiológus) Komócsi András Czuriga Dániel (1982-) (kardiológus) Csippa Benjamin Paál György Kőszegi Zsolt (1962-) (kardiológus, belgyógyász)
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