Abstract 16117: Clinical and Angiographic Scoring System to Predict the Probability of Successful First Attempt PCI in Patients With Coronary Chronic Total Occlusion

Circulation ◽  
2014 ◽  
Vol 130 (suppl_2) ◽  
Author(s):  
Giuseppe Alessandrino ◽  
Yves Louvard ◽  
Thierry Lefevre ◽  
Philippe Garot ◽  
Francesca Sanguineti ◽  
...  

Background: Coronary chronic total occlusion (CTO) remains the lesion subtype in which angioplasty has the lowest success rate. Although many independent predictors of final procedural success have been identified, no studies have yet analyzed their combined impact on final procedural outcome. In order to obtain a scoring model to predict final CTO-PCI success, we analyzed a population of patients who underwent a percutaneous coronary intervention for a chronic total occlusion (CTO-PCI) at our institution. Methods: We included 1,657 consecutive patients who underwent a first-attempt CTO-PCI at ICPS from January 2004 to December 2013. Clinical, angiographic procedural and technical characteristics were prospectively collected. A backword stepwise logistic regression including clinical and angiographic variables was used to create a multivariable model of independent predictors of CTO-PCI success. Independent variables were then scored. Results: Overall procedural success rate was 72.5%. The backward logistic regression model showed that two clinical variables: previous CABG (OR2.28, 95%CI1.53-3.4), previous MI (1.56, 95%CI 1.19-2.0) and four angiographic variables: severe lesion calcification (OR 2.95, 95%CI 2.08-4.2), longer CTOs (≥20 mm: OR 2.04, 95%CI 1.62-2.58), non LAD location (OR 1.58, 95%CI 1.21-2-06) and blunt stump morphology (OR 1.57, 95%CI 1.24-1.99) were independent predictors of CTO-PCI failure. The OR values of these variables were used to create the Clinical and Angiographic Scoring System (CL-SCORE). CL-Score values of 0, 1-3, >3 and ≤5 and >5 indentified subgroups at high (class 0), intermediate (class 1), low (class 2), very low (class 3) probability of CTO-PCI success (80.3%, 64.2%, 49.4 and 29% respectively; p<0,0001) Figure 1. The probability of CTO-PCI failure increased significantly from class 0 to class 1 (19.7% to 35.8%, p<0.0001), from class 1 to class 2 (35.8 to 50.6 p<0.0001) and from class 2 to class 3 (50.6% to 81% p=0.001), respectively. Conclusion: This clinical and angiographic score strongly predicted the final CTO-PCI procedural outcome of our study population. Further studies are required to validate this model.

2020 ◽  
Vol 72 (1) ◽  
Author(s):  
Ahmet Karabulut ◽  
Sevket Gorgulu ◽  
Tanıl Kocagoz

Abstract Background Procedures for coronary chronic total occlusion (CTO) are still a clinical challenge with relatively lower success rates. Recent advances in the biotechnology and introduction of CTO-dedicated guidewires have increased the procedural success rate of CTO interventions. Herein, we aimed to reveal the clinical and angiographic predictors of the crossability of the initial guidewire choice and rational guidewire usage in CTO interventions. A total of 177 patients with an indication for a coronary CTO procedure were included in this study. The use of 1–3 guidewires and crossing of the CTO lesion with the initial guidewire choice was defined as rational guidewire usage. The CTO lesions were classified according to the Japanese chronic total occlusion registry (J-CTO) and EuroCTO scores for evaluating the difficulty of the procedures. Then, a statistical analysis was performed to assess the initial guidewire choice, crossability, and contributors to rational guidewire usage. Results The mean J-CTO score was 1.42 ± 1.16, and the mean EuroCTO score was 1.44 ± 1.18. The success rate of the procedures was 90.4%. The initial guidewire choice crossed the lesion in 44.1% of the cases, in which 1–3 guidewires were used (82.1%). The crossability of the polymeric and moderate stiff tip guidewires was higher (82.1% and 64.1%, respectively), and the Pilot series was the most successful brand (36.2%). Logistic regression analysis confirmed that J-CTO score, procedural technique, guidewire type, and stiffness of the tip were the major predictors of rational guidewire usage. Conclusion Our analysis showed that the use of polymeric and moderate stiff tip guidewires, particularly the Pilot brand, were associated with rational guidewire usage in easy and intermediate difficulty CTO cases.


2021 ◽  
Author(s):  
Wenzheng Li ◽  
Zheng Wu ◽  
Hongyu Peng ◽  
Donghui Zhao ◽  
Yejing Zhao ◽  
...  

Abstract Background: There is limited data on percutaneous coronary intervention for chronic total occlusion (CTO) with previous failed attempt. The objective of this study is to investigate a risk score for prediction of successful percutaneous coronary intervention for prior failure CTO. Methods: Patients with previous attempt were enrolled in our study retrospectively from Jan. of 2016 to Dec. of 2019. All clinical and procedural data was collected and analyzed. Univariate and multivariate logistic regression was performed to investigate the predictors of technical success. Results: A total of 194 patients/CTO lesions were studied. The technical success rate was 66.0%. The multivariate logistic regression showed that occlusion length <20mm (OR= 2.94, 95% CI= 1.36±6.37, score= 1), non-calcification (OR= 2.93, 95% CI= 1.36±6.30, score=1), adequate distal landing zone (OR= 4.46, 95% CI= 2.06±9.66, score=1), Rentrop grade ≥2 (OR= 5.98, CI= 2.46±14.51, score =1), and retrograde approach as initial strategy (OR= 10.28, 95% CI= 3.58±29.50, score =2) was the predictor of re-attempt success of PCI. The technical success rate for a score from 0 to ≥4 was 0%, 17.9%, 46.2%, 77.8%, 93.3% respectively. The area under the receiver operating characteristic curve for the five predictors and integers was 0.837 and 0.832 respectively. Conclusions: The technical success rate for CTO PCI with previous failure was acceptable. Our score system can be used to predict the success rate of re-attempt CTO PCI.


2020 ◽  
Vol 41 (Supplement_2) ◽  
Author(s):  
M Habara ◽  
E Tsuchikane ◽  
K Shimizu ◽  
T Kawasaki

Abstract Objective This study was performed to evaluate the efficacy of cardiac computed tomography (CT) for antegrade dissection re-entry (ADR) technique in chronic total occlusion (CTO) percutaneous coronary intervention (PCI). Background Although PCI of CTO is a rapidly evolving field, procedure success rate remains suboptimal. Recently, ADR with Stingray device for CTO-PCI has also evolved to one of the pillar technique of the hybrid algorithm. Although the success rate of the device could be improved, it also remains not always high especially as first crossing strategy. Methods Forty eight patients with total occlusion suitable for revascularization evaluated by baseline coronary angiography and cardiac CT were enrolled in this study from April 2017 to April 2019 from 30 enrolled centers. The primary observation was procedural success. Furthermore, all puncture point with Stingray were analyzed by cardiac CT. In each point, 1) plaques on the isolated myocardial side at distal puncture site (+1 point), 2) any plaques excluded above definition at distal puncture site (+2 points), 3) calcification on both 1 and 2 at distal puncture site (+1 point) were analyzed and calculated the score (Score 0–3) (Figure 1). Results Overall procedure success rate was 95.8% (46/48) and antegrade success rate was 91.3% (42/46). Sixteen cases were succeeded with single guidewire escalation and 32 cases were attempted ADR with Stingray system. Within them, 25 cases were succeeded and 7 cases were observed puncture failure. And 3cases were succeeded with IVUS guide and 2 cases were with retrograde appTechnical success rate with stingray was 78.1% (25/32). Cardiac CT was analyzed 60 puncture sites in 32 cases which were attempted ADR with stingray system (1.88 sites/case). CT score at ADR success point was significantly smaller compare to that at ADR failure point (0.68±1.09 vs 1.77±1.09, p&lt;0.0001). Conclusions Pre procedure Cardiac CT and CT score might be useful for ADR technique in CTO PCI not only for case selection but also for puncture site selection. Figure 1 Funding Acknowledgement Type of funding source: None


2020 ◽  
Vol 15 ◽  
Author(s):  
Calum Creaney ◽  
Simon J Walsh

Chronic total occlusions (CTOs) are common in patients with ischaemic heart disease. In many countries, patients with CTOs are underserved by percutaneous coronary intervention (PCI). One of the barriers to CTO PCI is the technical challenges of these procedures. Improvements in technique and dedicated devices for CTO PCI, combined with advances in procedural strategy, have resulted in a dramatic increase in procedural success and outcomes. Antegrade wiring (AW) is the preferred initial strategy in short CTOs, where the proximal cap and course of the vessel is understood. For many longer, more complex occlusions, AW has a low probability of success. Dissection and re-entry techniques allow longer CTOs and those with ambiguous anatomy to be crossed safely and efficiently, and CTO operators must also be familiar with these strategies. The CrossBoss and Stingray system is currently the primary targeted re-entry device used during antegrade dissection and re-entry (ADR), and there continues to be an evolution in its use to increase procedural efficiency. In contrast to older ADR techniques, targeted re-entry allows preservation of important side-branches, and there is no difference in outcomes compared to intraplaque stenting.


2019 ◽  
Vol 40 (Supplement_1) ◽  
Author(s):  
H Tanaka ◽  
T Tada ◽  
Y Fuku ◽  
T Goto ◽  
K Kadota

Abstract Background Successful recanalisation of percutaneous coronary intervention for chronic total occlusion lesions has been associated with improved survival. Purpose This study aimed to assess the impact of successful percutaneous coronary intervention for chronic total occlusion lesions on the long-term outcome of patients with impaired and preserved left ventricular ejection fraction (LVEF). Methods The study sample consisted of 842 consecutive patients (928 chronic total occlusion lesions) undergoing percutaneous coronary intervention at our institution between October 2005 and December 2009. We divided them into 3 groups by the degree of LVEF: less than 40% (severely reduced LVEF, n=140), 40% to 59% (moderately reduced LVEF, n=470), and 60% and above (normal LVEF, n=232). We evaluated mortality during the 10-year follow-up period the basis of procedural success and failure. Results The overall procedural success rate was 89.1%. Median follow-up duration was 7.9 years. The 10-year cumulative incidences of cardiac death in each degree of LVEF are shown in the Figure. Conclusions Successful recanalisation for chronic total occlusion lesions in patients with impaired LVEF may be associated with reduced cardiac mortality.


Angiology ◽  
2019 ◽  
Vol 71 (3) ◽  
pp. 274-280 ◽  
Author(s):  
Iosif Xenogiannis ◽  
Fotis Gkargkoulas ◽  
Dimitri Karmpaliotis ◽  
Khaldoon Alaswad ◽  
Oleg Krestyaninov ◽  
...  

The impact of peripheral artery disease (PAD) in patients undergoing chronic total occlusion (CTO) percutaneous coronary intervention (PCI) has received limited study. We reviewed 3999 CTO PCIs performed in 3914 patients between 2012 and 2018 at 25 centers, 14% of whom had a history of PAD. We compared the clinical and angiographic characteristics and procedural outcomes of patients with versus without history of PAD. Patients with PAD were older (67 ± 9 vs 64 ± 10 years, P < .001) and had a higher prevalence of cardiovascular risk factors. They also had more complex lesions as illustrated by higher Japanese CTO score (2.7 ± 1.2 vs 2.4 ± 1.3, P < .001). In patients with PAD, the final crossing technique was less often antegrade wire escalation (40% vs 51%, P < .001) and more often the retrograde approach (23 vs 20%, P < .001) and antegrade dissection/reentry (20% vs 16%, P < .001). Technical success was similar between the 2 study groups (84% vs 87%, P = .127), but procedural success was lower for patients with PAD (81% vs 85%, P = .015). The incidence of in-hospital major adverse cardiac events was higher among patients with PAD (3% vs 2%, P = .046). In conclusion, patients with PAD undergoing CTO PCI have more comorbidities, more complex lesions, and lower procedural success.


2021 ◽  
Vol 02 (01) ◽  
pp. 031-041
Author(s):  
Rohit Mody

Chronic total occlusion recanalization still represents the final frontier in percutaneous coronary intervention. Retrograde recanalization is one of the greatest amendments of this technique. At present, it has become an integral complement to the traditional antegrade approach. Despite being most frequently used in complex patients, it has the highest success rate with the lowest incidence of complications. Since its inception, significant iterations have occurred that made this technique safer, faster, and even more successful.


2015 ◽  
Vol 10 (2) ◽  
pp. 90
Author(s):  
Smith David ◽  
Hailan Ahmed ◽  
Chase Alexander ◽  
◽  
◽  
...  

The hybrid algorithim approach, together with innovative new technologies, has lead to increased interest in chronic total occlusion (CTO) percutaneous coronary intervention (PCI) and increasing procedural success rates. Unlike non-CTO PCI, there is an increased rate of femoral access. When considering arterial access in CTO PCI, a balance is needed between anticipated procedural difficulty, planned CTO strategy and the desire to minimise the risk of vascular access-related complications. We review the evidence for best practice with respect to femoral puncture technique and also assess the technologies and techniques available to place larger inner diameter catheters into the radial artery.


Author(s):  
Michael Megaly ◽  
Iosif Xenogiannis ◽  
Nidal Abi Rafeh ◽  
Dimitri Karmpaliotis ◽  
Stephane Rinfret ◽  
...  

The retrograde approach has increased the success rate of chronic total occlusion percutaneous coronary intervention but has also been associated with a higher risk of complications. The retrograde approach is usually performed in complex lesions, in which the antegrade approach is not feasible or has failed previously. Using a systematic 10-step approach can maximize the likelihood of success and minimize the risks of retrograde chronic total occlusion interventions.


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