scholarly journals 401 Myocardial viability and ischaemia assessment in chronic coronary total occlusions according to collaterals distribution: a retrospective analysis

2021 ◽  
Vol 23 (Supplement_G) ◽  
Author(s):  
Giuseppe Pinto ◽  
Mauro Chiarito ◽  
Gaetano Liccardo ◽  
Sara Baggio ◽  
Elodi Bacci ◽  
...  

Abstract Aims Whether CTO-PCI (chronic total occlusions—percutaneous coronary intervention) offers clinical benefit over optimal medical therapy is still a matter of debate. Viability and ischaemia assessment could improve selection of candidates to PCI. Traditionally, well-developed collaterals are considered a marker of myocardial viability in CTO territory. Current literature offers few data concerning the relationship between viability/ischaemia and collaterals distribution. Methods and results We retrospectively analysed the Cardiovascular Magnetic Resonance (CMR) studies and coronary angiographies of patients with at least one CTO referred at Humanitas Research Hospital between June 2009 and September 2020. We included 131 patients who underwent CMR with LGE assessment; of them, 111 (85%) underwent stress-CMR with adenosine. AHA segments (16 segment/patient for a total of 2096 segment assessed) were assessed on three short axis projection and scored for WMSI on cine images, for the presence of ischaemia on first pass perfusion, and for viability on LGE images. Viability was defined as LGE transmurality ≤50% and WMSI (wall motion score index) >1. Patients were divided in three groups according to collaterals distribution at coronary angiography: Patients with TD collaterals were more likely to have viable segments in the CTO-territory (90% of the segments in TD, 76% in WD, and 71% in PD, coeff. 0.107, P < 0.001). No statistically significant differences were found between groups as regard the amount of ischaemic segments (61% of the segments in TD, 65% in WD, and 60% in PD, P = 0.189). Conclusions The presence of myocardial viability is slightly associated with the degree of coronary collateralization at coronary angiography while the amount of ischaemia is not. Stress CMR should be considered in CTO patients before a reopening attempt.

Angiology ◽  
2019 ◽  
Vol 71 (3) ◽  
pp. 249-255 ◽  
Author(s):  
Cagri Zorlu ◽  
Cemal Koseoglu

Contrast-induced nephropathy (CIN) is one of the most important complications after invasive cardiovascular procedures. The neutrophil-to-lymphocyte ratio (NLR), mean platelet volume-to-lymphocyte ratio (MPVLR), and platelet-to-lymphocyte ratio (PLR) may be markers of the risk of CIN. We aimed to investigate the association of these indices with the development of CIN in patients with ST-elevation myocardial infarction and non-ST-elevation-acute coronary syndrome who underwent percutaneous coronary intervention. We retrospectively collected the data of patients with ACS after coronary angiography (CA); 564 patients were included (mean age, 62.3 ± 13.0 years; 41.1% female). We compared 62 (10.9%) patients who developed CIN and 502 patients who did not, after CA in terms of NLR, PLR, and MPVLR. Patients who developed CIN had significantly higher MPVLR, NLR, and PLR; the MPVLR ( P ≤ .001) was an independent predictor of CIN. NLR, MPVLR, and PLR are simple, cheap, and easily accessible tests that can predict CIN; the MPVLR was the strongest of these predictors.


2020 ◽  
Vol 41 (Supplement_2) ◽  
Author(s):  
A Van Veelen ◽  
J Elias ◽  
I.M Van Dongen ◽  
J.P.S Henriques ◽  
P Knaapen

Abstract Background Females comprise a minority of patients with chronic total occlusions (CTO). It is known that men have a greater benefit from CTO percutaneous coronary intervention (PCI) than women. We aimed to determine gender-based differences in baseline characteristics and outcomes after PCI in patients with CTO. Methods The Netherlands Heart Registration (NHR) is a nationwide registry that registers outcomes of cardiac interventions. For the purpose of this analysis, the data of all patients undergoing PCI from inception of the NHR to December 2018 were selected, that included PCI with at least one CTO in one of the treated coronary arteries. We compared baseline characteristics and the outcomes 1 year mortality, 30 day myocardial infarction (MI) and target vessel revascularization (TVR) <1 year between men and women. Results A total of 7560 patients were identified that underwent PCI between January 1, 2015 and December 31, 2018 with at least 1 CTO in the treated vessel. A total of 5850 was male (77.4%) and 1710 was female (22.6%). Women were older (68.5±10.6 versus 64.7±10.6 years old, p<0.001), and more frequently had diabetes (29.4% [n=529] versus 25.0% [n=1602], p<0.001) and kidney disease (4.5% [n=529] versus 2.2% [n=142], p<0.001). However, men had more extensive cardiovascular disease, i.e. multi-vessel disease (56.0% [n=3584] versus 50.4% [n=912], p<0.001), previous MI (39.7% [n=2527] versus 31.0% [n=555], p<0.001), previous PCI (48.2% [n=1967] versus 40.2% [n=455], p<0.001) and previous coronary artery bypass grafting (16.8% [n=1085] versus 10.5% [n=191], p<0.001) and more frequently presented with an out-of-hospital cardiac arrest, compared to women (2.1% [n=136] versus 1.1% [n=20], p=0.004). The 1-year mortality was higher in women (10.3% versus 7.5%, p<0.001), as well as the 30-day MI (0.9% versus 0.4%, p=0.043), but men had higher risk for TVR<1 year (11.7% versus 9.5%, p=0.044). Corrected for age and comorbidities, female gender was an independent predictor for mortality (Figure 1; odds ratio 1.83, 95% confidence interval 1.08–3.11, p=0.025). Conclusion In this nationwide registry comprising 7560 CTO patients undergoing PCI, significant gender-based differences were found. Males were found to have more extensive cardiovascular disease. However, females were at higher risk of mortality, possibly due to higher age and higher prevalence of concomitant comorbidities. Figure 1. Survival curve Funding Acknowledgement Type of funding source: None


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