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30 results on '"Rempakos, Athanasios"'

1. Angiographic Features and Clinical Outcomes of Balloon Uncrossable Lesions during Chronic Total Occlusion Percutaneous Coronary Intervention

Author

Karacsonyi, Judit, Kostantinis, Spyridon, Simsek, Bahadir, Rempakos, Athanasios, Allana, Salman S, Alaswad, Khaldoon, Krestyaninov, Oleg, Khatri, Jaikirshan, Poommipanit, Paul, Jaffer, Farouc A, Choi, James, Patel, Mitul, Gorgulu, Sevket, Koutouzis, Michalis, Tsiafoutis, Ioannis, Sheikh, Abdul M, ElGuindy, Ahmed, Elbarouni, Basem, Patel, Taral, Jefferson, Brian, Wollmuth, Jason R, Yeh, Robert, Karmpaliotis, Dimitrios, Kirtane, Ajay J, McEntegart, Margaret B, Masoumi, Amirali, Davies, Rhian, Rangan, Bavana V, Mastrodemos, Olga C, Doshi, Darshan, Sandoval, Yader, Basir, Mir B, Megaly, Michael S, Ungi, Imre, Rafeh, Nidal Abi, Goktekin, Omer, and Brilakis, Emmanouil S

Subjects
Biomedical and Clinical Sciences, Clinical Sciences, Atherosclerosis, Cardiovascular, Heart Disease - Coronary Heart Disease, Heart Disease, percutaneous coronary intervention, chronic total occlusion, balloon uncrossable, Medical biochemistry and metabolomics, Medical biotechnology, Pharmacology and pharmaceutical sciences
Abstract

Background: Balloon uncrossable lesions are defined as lesions that cannot be crossed with a balloon after successful guidewire crossing. Methods: We analyzed the association between balloon uncrossable lesions and procedural outcomes of 8671 chronic total occlusions (CTOs) percutaneous coronary interventions (PCIs) performed between 2012 and 2022 at 41 centers. Results: The prevalence of balloon uncrossable lesions was 9.2%. The mean patient age was 64.2 ± 10 years and 80% were men. Patients with balloon uncrossable lesions were older (67.3 ± 9 vs. 63.9 ± 10, p < 0.001) and more likely to have prior coronary artery bypass graft surgery (40% vs. 25%, p < 0.001) and diabetes mellitus (50% vs. 42%, p < 0.001) compared with patients who had balloon crossable lesions. In-stent restenosis (23% vs. 16%. p < 0.001), moderate/severe calcification (68% vs. 40%, p < 0.001), and moderate/severe proximal vessel tortuosity (36% vs. 25%, p < 0.001) were more common in balloon uncrossable lesions. Procedure time (132 (90, 197) vs. 109 (71, 160) min, p < 0.001) was longer and the air kerma radiation dose (2.55 (1.41, 4.23) vs. 1.97 (1.10, 3.40) min, p < 0.001) was higher in balloon uncrossable lesions, while these lesions displayed lower technical (91% vs. 99%, p < 0.001) and procedural (88% vs. 96%, p < 0.001) success rates and higher major adverse cardiac event (MACE) rates (3.14% vs. 1.49%, p < 0.001). Several techniques were required for balloon uncrossable lesions. Conclusion: In a contemporary, multicenter registry, 9.2% of the successfully crossed CTOs were initially balloon uncrossable. Balloon uncrossable lesions exhibited lower technical and procedural success rates and a higher risk of complications compared with balloon crossable lesions.

Published
2023

2. Predicting Successful Chronic Total Occlusion Crossing With Primary Antegrade Wiring Using Machine Learning.

Author

Rempakos, Athanasios, Alexandrou, Michaella, Mutlu, Deniz, Kalyanasundaram, Arun, Ybarra, Luiz F., Bagur, Rodrigo, Choi, James W., Poommipanit, Paul, Khatri, Jaikirshan J., Young, Laura, Davies, Rhian, Benton, Stewart, Gorgulu, Sevket, Jaffer, Farouc A., Chandwaney, Raj, Jaber, Wissam, Rinfret, Stephane, Nicholson, William, Azzalini, Lorenzo, and Kearney, Kathleen E.

Abstract

There is limited data on predicting successful chronic total occlusion crossing using primary antegrade wiring (AW). The aim of this study was to develop and validate a machine learning (ML) prognostic model for successful chronic total occlusion crossing using primary AW. We used data from 12,136 primary AW cases performed between 2012 and 2023 at 48 centers in the PROGRESS CTO registry (Prospective Global Registry for the Study of Chronic Total Occlusion Intervention; NCT02061436) to develop 5 ML models. Hyperparameter tuning was performed for the model with the best performance, and the SHAP (SHapley Additive exPlanations) explainer was implemented to estimate feature importance. Primary AW was successful in 6,965 cases (57.4%). Extreme gradient boosting was the best performing ML model with an average area under the receiver-operating characteristic curve of 0.775 (± 0.010). After hyperparameter tuning, the average area under the receiver-operating characteristic curve of the extreme gradient boosting model was 0.782 in the training set and 0.780 in the testing set. Among the factors examined, occlusion length had the most significant impact on predicting successful primary AW crossing followed by blunt/no stump, presence of interventional collaterals, vessel diameter, and proximal cap ambiguity. In contrast, aorto-ostial lesion location had the least impact on the outcome. A web-based application for predicting successful primary AW wiring crossing is available online (PROGRESS-CTO website) (https://www.progresscto.org/predict-aw-success). We developed an ML model with 14 features and high predictive capacity for successful primary AW in chronic total occlusion percutaneous coronary intervention. [Display omitted] [ABSTRACT FROM AUTHOR]

Published
2024
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3. Trends and Outcomes of Antegrade Dissection and Re-Entry in Chronic Total Occlusion Percutaneous Coronary Intervention.

Author

Rempakos, Athanasios, Alexandrou, Michaella, Simsek, Bahadir, Kostantinis, Spyridon, Karacsonyi, Judit, Mutlu, Deniz, Ybarra, Luiz F., Bagur, Rodrigo, Choi, James W., Poommipanit, Paul, Khatri, Jaikirshan J., Davies, Rhian, Benton, Stewart, Gorgulu, Sevket, Jaffer, Farouc A., Chandwaney, Raj, Jaber, Wissam, Rinfret, Stephane, Nicholson, William, and Azzalini, Lorenzo

Abstract

The contemporary frequency and outcomes of antegrade dissection and re-entry (ADR) for chronic total occlusion (CTO) percutaneous coronary intervention (PCI) have received limited study. The aim of this study was to determine the frequency and outcomes of ADR use in a large multicenter CTO PCI registry. The characteristics and outcomes of ADR were examined among 12,568 patients who underwent 12,841 CTO PCIs at 46 U.S. and non-U.S. centers between 2012 and 2023. ADR was used in 2,385 of the procedures (18.6%). ADR use declined from 37.9% in 2012 to 14.5% in 2022 (P < 0.001). Patients in whom ADR was used had a high prevalence of comorbidities. Compared with cases that did not use ADR, ADR cases had more complex angiographic characteristics, higher mean J-CTO (Multicenter CTO Registry in Japan) score (2.94 ± 1.11 vs 2.23 ± 1.26; P < 0.001), lower technical success (77.0% vs 89.3%; P < 0.001), and higher in-hospital major adverse cardiac events (3.7% vs 1.6%; P < 0.001). The use of the CrossBoss declined from 71% in 2012 to 1.4% in 2022 and was associated with higher technical success (87%) compared with wire-based techniques (73%). The Stingray device displayed higher technical success (86%) compared with subintimal tracking and re-entry (STAR) (74%) and limited antegrade subintimal tracking (78%); however, its use has been decreasing, with STAR becoming the most used re-entry technique in 2022 (44% STAR vs 38% Stingray). The use of ADR has been decreasing. ADR was used in more complex lesions and was associated with lower technical success and higher major adverse cardiac events compared with non-ADR cases. There has been a decrease in Stingray use and an increase in the use of STAR for re-entry. [Display omitted] [ABSTRACT FROM AUTHOR]

Published
2023
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4. Aortocoronary dissection during percutaneous coronaryinterventions for chronic total occlusion: Insights from thePROGRESS‐CTO registry

Author

Kostantinis, Spyridon, Rempakos, Athanasios, Şimşek, Bahadır, Karacsonyi, Judit, Allana, Salman S., Alaswad, Khaldoon, Basir, Mir Babar, Krestyaninov, Oleg, Khelimskii, Dmitrii, Görgülü, Şevket, Davies, Rhian E., Benton, Stewart M., Khatri Jaikirshan J., Poommipanit, Paul, Choi, James W., Jaber, Wissam A., Rinfret, Stephane, Nicholson, William, Aygül, Nazif, Altunkeser, Bulent Behlul, ElGuindy, Ahmed M., Rafeh, Nidal Abi, Goktekin, Ömer, Mastrodemos, Olga C., Rangan, Bavana V., Sandova, Yader, Burke, M. Nicholas, Brilakis, Emmanouil S., and Tıp Fakültesi

Subjects
Complications, Percutaneous Coronary Intervention, Aortocoronary Dissection, Chronic Total Occlusion
Abstract

Background: Aortocoronary dissection is a potentially serious complication of chronic total occlusion (CTO) percutaneous coronary intervention (PCI). Methods: We examined the incidence, mechanisms, treatment, and outcomes of aortocoronary dissection among 12,117 CTO PCIs performed between 2012 and 2022 in a large multicenter CTO PCI registry. Results: The incidence of aortocoronary dissection was 0.2% (n = 27). Most aortocoronary dissections occurred in the right coronary artery (96.3%, n = 26). The baseline clinical characteristics of patients with and without aortocoronary dissection were similar, except for dyslipidemia, which was less common in patients with aortocoronary dissection (70.4% vs. 86.0%; p = 0.019). The retrograde approach was used more commonly among cases complicated by aortocoronary dissection (59.3% vs. 31.0%; p = 0.002). Technical (74.1% vs. 86.6%; p = 0.049) and procedural (70.4% vs. 85.2%; p = 0.031) success rates were lower among aortocoronary dissection cases, with a similar incidence of in-hospital major adverse cardiovascular events (3.7% vs. 2.0%; p = 0.541). Of the 27 patients with aortocoronary dissection, 19 (70.4%) were treated with ostial stenting and 8 (29.6%) were treated conservatively without subsequent adverse clinical outcomes. No patients required emergency surgery. Follow-up was available for 22 patients (81.5%): during a mean follow up of 767 (±562) days, the incidence of in-stent restenosis was 11.1% (n = 3). Conclusions: Aortocoronary dissection occurred in 0.2% of CTO PCIs performed by experienced operators, was associated with lower technical and procedural success, and was treated most commonly with ostial stenting. None of the patients required emergency cardiac surgery.

Published
2023

5. Same day discharge versus overnight observation followingchronic total occlusion percutaneous coronary intervention:Insights from the PROGRESS‐CTO registry

Author

Şimşek, Bahadır, Khatri, Jaikirshan, Young, Laura, Kostantinis, Spyridon, Karacsonyi, Judit, Rempakos, Athanasios, Alaswad, Khaldoon A., Jaffer, Farouc, Doshi, Darshan, Görgülü, Şevket, Göktekin, Ömer, Kerrigan, Jimmy V., Haddad, Elias, Rinfret, Stephane A., Jaber, Wissam, Nicholson, William, Krestyaninov, Oleg, Khelimskii, Dimitrii W., Choi, James N., Patel, Taral K., Jefferson, Brian M., Bradley, Steven V., Rao, Sunil V., Rangan, Bavana S., Allana, Salman, Sandoval, Yader, Burke, M. Nicholas S., Brilakis, Emmanouil B., Poommipanit, Paul, and Tıp Fakültesi

Subjects
Percutaneous Coronary Intervention, Same Day Discharge, Chronic Total Occlusion, Overnight Observation
Abstract

BackgroundSame day discharge (SDD) following chronic total occlusion (CTO) percutaneous coronary intervention (PCI) has received limited study. MethodsWe evaluated the clinical, angiographic, and procedural characteristics of patients discharged the same day versus those kept for overnight observation in the Prospective Global Registry for the Study of Chronic Total Occlusion Intervention (PROGRESS-CTO, NCT02061436). ResultsOf the 7181 patients who underwent CTO PCI, 943 (13%) had SDD. The SDD rate increased from 3% in 2015 to 21% in 2022. Patients with SDD were less likely to have a history of heart failure (21% vs. 26%, p = 0.005), chronic lung disease (10% vs. 15%, p = 0.001), or anemia (12% vs. 19%, p < 0.001). Technical success (87% vs. 88%, p = 0.289) was similar, but in-hospital major adverse cardiovascular events (0.0% vs. 0.4%, p = 0.041) were lower in SDD. In multivariable logistic regression analysis, prior myocardial infarction odds ratio (OR): 0.71 (95% confidence interval [CI]: 0.59-0.87, p = 0.001), chronic lung disease OR: 0.64 (95% CI: 0.47-0.88, p = 0.006), and increasing procedure time OR: 0.93 (95% CI: 0.91-0.95, p < 0.001, per 10-min increase) were associated with overnight observation, while radial-only access OR: 2.45 (95% CI: 2.03-2.96, p < 0.001) had the strongest association with SDD. In the SDD, 2 (0.4%) of 514 patients were readmitted, due to retroperitoneal bleeding (n = 1) and ischemic stroke (n = 1). ConclusionThe overall frequency of SDD after CTO PCI was 13% and has been increasing over time. SDD is feasible in select patients following CTO PCI, and radial-only access had the strongest association with SDD.

Published
2023

8. IMPACT OF SHEATH SIZE ON THE OUTCOMES OF CHRONIC TOTAL OCCLUSION PERCUTANEOUS CORONARY INTERVENTION.

Author

Rempakos, Athanasios, Alexandrou, Michaella, Mutlu, Deniz, Choi, James W., Poommipanit, Paul, Khatri, Jaikirshan J., Davies, Rhian E., Gorgulu, Sevket, Jaffer, Farouc A., Chandwaney, Raj H., Azzalini, Lorenzo, Kearney, Kathleen E., Alaswad, Khaldoon, Basir, Mir Babar, Krestianinov, Oleg, Khelimskii, Dmitrii, Rafeh, Nidal Abi, ElGuindy, Ahmed Mohamed, Goktekin, Omer, and Rangan, Bavana V.

Subjects
*CHRONIC total occlusion, *PERCUTANEOUS coronary intervention
Published
2024
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9. PREDICTORS OF SUCCESSFUL PRIMARY ANTEGRADE WIRING IN CHRONIC TOTAL OCCLUSION PERCUTANEOUS CORONARY INTERVENTION.

Author

Rempakos, Athanasios, Alexandrou, Michaella, Mutlu, Deniz, Choi, James W., Poommipanit, Paul, Khatri, Jaikirshan J., Davies, Rhian E., Gorgulu, Sevket, Jaffer, Farouc A., Chandwaney, Raj H., Azzalini, Lorenzo, Alaswad, Khaldoon, Basir, Mir Babar, Krestianinov, Oleg, Khelimskii, Dmitrii, Rafeh, Nidal Abi, ElGuindy, Ahmed Mohamed, Goktekin, Omer, Rangan, Bavana V., and Mastrodemos, Olga

Subjects
*CHRONIC total occlusion, *PERCUTANEOUS coronary intervention
Published
2024
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11. PRACTICE PATTERNS OF LOWER VS HIGHER VOLUME CHRONIC TOTAL OCCLUSION PERCUTANEOUS CORONARY INTERVENTION OPERATORS.

Author

Simsek, Bahadir, Rempakos, Athanasios, Alexandrou, Michaella, Kostantinis, Spyridon, Rangan, Bavana V., Mutlu, Deniz, Al-Ogaili, Ahmed, Rafeh, Nidal Abi, Alaswad, Khaldoon, Ahmad, Yousif, Azzalini, Lorenzo, Egred, Mohaned, Goktekin, Omer, Gorgulu, Sevket, Jaber, Wissam A., Kearney, Kathleen E., Kirtane, Ajay J., Mashayekhi, Kambis, Khatri, Jaikirshan J., and Nicholson, William J.

Subjects
*CHRONIC total occlusion, *PERCUTANEOUS coronary intervention
Published
2024
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12. RACIAL DISPARITIES IN CHRONIC TOTAL OCCLUSION PERCUTANEOUS CORONARY INTERVENTIONS: INSIGHTS FROM THE PROGRESS CTO REGISTRY.

Author

Allana, Salman S., Rempakos, Athanasios, Alexandrou, Michaella, Alaswad, Khaldoon, Azzalini, Lorenzo, Murad, Bilal Mahmood, Khatri, Jaikirshan J., Jaffer, Farouc A., Nicholson, William J., Rinfret, Stéphane, Jaber, Wissam A., Rangan, Bavana V., Sandoval, Yader, and Brilakis, Emmanouil S.

Subjects
*CHRONIC total occlusion, *PERCUTANEOUS coronary intervention, *RACIAL inequality
Published
2024
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13. COMPARATIVE ANALYSIS OF POLYMER VS NON-POLYMER JACKETED WIRES IN CHRONIC TOTAL OCCLUSION PERCUTANEOUS CORONARY INTERVENTION.

Author

Alexandrou, Michaella, Rempakos, Athanasios, Mutlu, Deniz, Al-Ogaili, Ahmed, Choi, James W., Poommipanit, Paul, Alaswad, Khaldoon, Basir, Mir Babar, Davies, Rhian E., Benton, Stewart M., Jaffer, Farouc A., Chandwaney, Raj H., Kearney, Kathleen E., ElGuindy, Ahmed Mohamed, Rafeh, Nidal Abi, Gorgulu, Sevket, Khatri, Jaikirshan J., Rangan, Bavana V., Sandoval, Yader, and Lombardi, William L.

Subjects
*CHRONIC total occlusion, *PERCUTANEOUS coronary intervention, *COMPARATIVE studies, *POLYMERS
Published
2024
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14. EQUIPMENT ENTRAPMENT/LOSS IN CHRONIC TOTAL OCCLUSION PERCUTANEOUS CORONARY INTERVENTION.

Author

Alexandrou, Michaella, Rempakos, Athanasios, Mutlu, Deniz, Al-Ogaili, Ahmed, Choi, James W., Poommipanit, Paul, Alaswad, Khaldoon, Basir, Mir Babar, Davies, Rhian E., Jaffer, Farouc A., Chandwaney, Raj H., Azzalini, Lorenzo, Aygul, Nazif, Dattilo, Philip B., Jefferson, Brian K., Gorgulu, Sevket, Khatri, Jaikirshan J., Krestianinov, Oleg, Frizzell, Jarrod David, and Elbarouni, Basem

Subjects
*CHRONIC total occlusion, *PERCUTANEOUS coronary intervention
Published
2024
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15. EMERGENCY CORONARY ARTERY BYPASS SURGERY DURING PERCUTANEOUS CORONARY INTERVENTIONS FOR CHRONIC TOTAL OCCLUSION: INSIGHTS FROM THE PROGRESS-CTO REGISTRY.

Author

Mutlu, Deniz, Rempakos, Athanasios, Alexandrou, Michaella, Al-Ogaili, Ahmed, Gorgulu, Sevket, Choi, James W., Elbarouni, Basem, Khatri, Jaikirshan J., Jaffer, Farouc A., Riley, Robert, Smith, A. J. Conrad, Davies, Rhian E., Rangan, Bavana V., Mastrodemos, Olga, Sandoval, Yader, Burke, M Nicholas, and Brilakis, Emmanouil S.

Subjects
*CHRONIC total occlusion, *CORONARY artery bypass, *CORONARY artery surgery, *PERCUTANEOUS coronary intervention
Published
2024
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16. TCT-730 Validation of the BCIS CHIP Score in Chronic Total Occlusion Percutaneous Coronary Intervention.

Author

Rempakos, Athanasios, Alexandrou, Michaella, Mutlu, Deniz, Gorgulu, Sevket, Rafeh, Nidal Abi, Choi, James, Krestyaninov, Oleg, Azzalini, Lorenzo, Khatri, Jaikirshan, Khelimskii, Dmitrii, Jaffer, Farouc, Chandwaney, Raj, Alaswad, Khaldoon, Davies, Rhian, Poommipanit, Paul, Goktekin, Omer, Benton, Stewart, Young, Laura, Jefferson, Brian, and Dattilo, Philip

Subjects
*CHRONIC total occlusion, *PERCUTANEOUS coronary intervention
Published
2023
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17. TCT-451 Use of CrossBoss in Chronic Total Occlusion Percutaneous Coronary Intervention.

Author

Karacsonyi, Judit, Rempakos, Athanasios, Alexandrou, Michaella, Allana, Salman, Kostantinis, Spyridon, Simsek, Bahadir, Al-Ogaili, Ahmed, Alaswad, Khaldoon, Karmpaliotis, Dimitri, Kirtane, Ajay, McEntegart, Margaret, Jaffer, Farouc, Choi, James, Poommipanit, Paul, Elbarouni, Basem, Gorgulu, Sevket, ElGuindy, Ahmed, Rafeh, Nidal Abi, Goktekin, Omer, and Azzalini, Lorenzo

Subjects
*CHRONIC total occlusion, *PERCUTANEOUS coronary intervention
Published
2023
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18. TCT-427 Impact of Interventional Collaterals on the Outcomes of Chronic Total Occlusion Percutaneous Coronary Intervention.

Author

Rempakos, Athanasios, Alexandrou, Michaella, Mutlu, Deniz, Choi, James, Khatri, Jaikirshan, Davies, Rhian, Benton, Stewart, Gorgulu, Sevket, Jaffer, Farouc, Ybarra, Luiz, Azzalini, Lorenzo, Chandwaney, Raj, Goktekin, Omer, Bagur, Rodrigo, Rafeh, Nidal Abi, Khelimskii, Dmitrii, Rinfret, Stephane, Jaber, Wissam, Krestyaninov, Oleg, and Nicholson, William

Subjects
*CHRONIC total occlusion, *PERCUTANEOUS coronary intervention
Published
2023
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19. TCT-422 Trends and Outcomes of Antegrade Dissection and Re-Entry in Chronic Total Occlusion Percutaneous Coronary Intervention.

Author

Rempakos, Athanasios, Alexandrou, Michaella, Simsek, Bahadir, Kostantinis, Spyridon, Karacsonyi, Judit, Mutlu, Deniz, Ybarra, Luiz, Bagur, Rodrigo, Choi, James, Poommipanit, Paul, Khatri, Jaikirshan, Davies, Rhian, Benton, Stewart, Gorgulu, Sevket, Jaffer, Farouc, Chandwaney, Raj, Jaber, Wissam, Rinfret, Stephane, Nicholson, William, and Azzalini, Lorenzo

Subjects
*CHRONIC total occlusion, *PERCUTANEOUS coronary intervention
Published
2023
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20. Impact of calcium on the procedural techniques and outcomes of chronic total occlusion percutaneous coronary intervention.

Author

Kostantinis, Spyridon, Rempakos, Athanasios, Simsek, Bahadir, Karacsonyi, Judit, Allana, Salman S., Alexandrou, Michaella, Gorgulu, Sevket, Alaswad, Khaldoon, Basir, Mir Babar, Davies, Rhian E., Benton, Stewart M., Krestyaninov, Oleg, Khelimskii, Dmitrii, Frizzell, Jarrod, Ybarra, Luiz F., Bagur, Rodrigo, Reddy, Niranjan, Kerrigan, Jimmy L., Haddad, Elias V., and Love, Michael

Subjects
*CHRONIC total occlusion, *PERCUTANEOUS coronary intervention, *CORONARY artery bypass, *INTRAVASCULAR ultrasonography, *MAJOR adverse cardiovascular events, *TRANSLUMINAL angioplasty
Abstract

Coronary calcification is common and increases the difficulty of chronic total occlusion (CTO) percutaneous coronary intervention (PCI). We examined the impact of calcium on procedural outcomes of 13,079 CTO PCIs performed in 12,799 patients at 46 US and non-US centers between 2012 and 2023. Moderate or severe calcification was present in 46.6% of CTO lesions. Patients whose lesions were calcified were older and more likely to have had prior coronary artery bypass graft surgery. Calcified lesions were more complex with higher J-CTO score (3.0 ± 1.1 vs. 1.9 ± 1.2; p < 0.001) and lower technical (83.0% vs. 89.9%; p < 0.001) and procedural (81.0% vs. 89.1%; p < 0.001) success rates compared with mildly calcified or non-calcified CTO lesions. The retrograde approach was more commonly used among cases with moderate/severe calcification (40.3% vs. 23.5%; p < 0.001). Balloon angioplasty (76.6%) was the most common lesion preparation technique for calcified lesions, followed by rotational atherectomy (7.3%), laser atherectomy (3.4%) and, intravascular lithotripsy (3.4%). The incidence of major adverse cardiovascular events (MACE) was higher in cases with moderate or severe calcification (3.0% vs. 1.2%; p < 0.001), as was the incidence of perforation (6.5% vs. 3.4%; p < 0.001). On multivariable analysis, the presence of moderate/severe calcification was independently associated with lower technical success (odds ratio, OR = 0.73, 95% CI: 0.63–0.84) and higher MACE (OR = 2.33, 95% CI: 1.66–3.27). Moderate/severe calcification was present in nearly half of CTO lesions, and was associated with higher utilization of the retrograde approach, lower technical and procedural success rates, and higher incidence of in-hospital MACE. • Moderate/severe calcification: • is present in nearly half of chronic total occlusion (CTO) lesions • requires more frequent use of the retrograde approach • requires more frequent use of intravascular ultrasound (IVUS) and advanced plaque modification techniques • is associated with lower technical and procedural success, and higher major adverse cardiovascular events (MACE) [ABSTRACT FROM AUTHOR]

Published
2023
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21. TCT-394 Atrial Fibrillation and Chronic Total Occlusion Percutaneous Coronary Intervention Outcomes: Insights From the PROGRESS-CTO Registry.

Author

Alexandrou, Michaella, Rempakos, Athanasios, Al-Ogaili, Ahmed, Mutlu, Deniz, Choi, James, Poommipanit, Paul, Khatri, Jaikirshan, Young, Laura, Davies, Rhian, Benton, Stewart, Jaffer, Farouc, Chandwaney, Raj, Azzalini, Lorenzo, ElGuindy, Ahmed, Rafeh, Nidal Abi, Koutouzis, Michail, Tsiafoutis, Ioannis, Goktekin, Omer, Gorgulu, Sevket, and Rangan, Bavana

Subjects
*CHRONIC total occlusion, *PERCUTANEOUS coronary intervention, *ATRIAL fibrillation
Published
2023
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22. IN HOSPITAL OUTCOMES OF CHRONIC TOTAL OCCLUSION INTERVENTIONS: AN UPDATE FROM THE PROGRESS-CTO (PROSPECTIVE GLOBAL REGISTRY FOR THE STUDY OF CHRONIC TOTAL OCCLUSION INTERVENTION) INTERNATIONAL REGISTRY.

Author

Al-Ogaili, Ahmed, Alexandrou, Michaella, Rempakos, Athanasios, Mutlu, Deniz, Choi, James W., Poommipanit, Paul, Khatri, Jaikirshan J., Alaswad, Khaldoon, Jaber, Wissam A., Rinfret, Stéphane, Nicholson, William J., Azzalini, Lorenzo, Kearney, Kathleen E., Jaffer, Farouc A., Davies, Rhian E., ElGuindy, Ahmed Mohamed, Rafeh, Nidal Abi, Goktekin, Omer, Gorgulu, Sevket, and Rangan, Bavana V.

Subjects
*CHRONIC total occlusion, *HOSPITALS
Published
2024
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23. RETROGRADE CHRONIC TOTAL OCCLUSION INTERVENTIONS VIA IPSILATERAL COLLATERALS.

Author

Al-Ogaili, Ahmed, Alexandrou, Michaella, Rempakos, Athanasios, Mutlu, Deniz, Choi, James W., Poommipanit, Paul, Khatri, Jaikirshan J., Alaswad, Khaldoon, Basir, Mir Babar, Chandwaney, Raj H., Gorgulu, Sevket, ElGuindy, Ahmed Mohamed, Elbarouni, Basem, Jaber, Wissam A., Rinfret, Stéphane, Nicholson, William J., Jaffer, Farouc A., Aygul, Nazif, Azzalini, Lorenzo, and Rangan, Bavana V.

Subjects
*CHRONIC total occlusion
Published
2024
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24. TCT-334 Technical Analysis and Procedural Outcomes of Retrograde Approach to Chronic Total Occlusion Percutaneous Coronary Interventions: Insights From an International Multicenter Registry.

Author

Allana, Salman, Kostantinis, Spyridon, Rempakos, Athanasios, Simsek, Bahadir, Karacsonyi, Judit, Alaswad, Khaldoon, Jaffer, Farouc, Khatri, Jaikirshan, Choi, James, Krestyaninov, Oleg, Khelimskii, Dmitrii, Gorgulu, Sevket, Davies, Rhian, Benton, Stewart, Poommipanit, Paul, Azzalini, Lorenzo, Chandwaney, Raj, Rinfret, Stephane, Jaber, Wissam, and Frizzell, Jarrod

Subjects
*CHRONIC total occlusion, *PERCUTANEOUS coronary intervention
Published
2023
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25. TCT-338 "Tip in/Rendez-vous" Technique in Retrograde Chronic Total Occlusion Percutaneous Coronary Interventions: Insights From the PROGRESS CTO Registry.

Author

Allana, Salman, Kostantinis, Spyridon, Rempakos, Athanasios, Simsek, Bahadir, Karacsonyi, Judit, Alexandrou, Michaella, Azzalini, Lorenzo, Alaswad, Khaldoon, Khatri, Jaikirshan, Choi, James, Jaffer, Farouc, Benton, Stewart, Davies, Rhian, Poommipanit, Paul, Frizzell, Jarrod, Khelimskii, Dmitrii, Gorgulu, Sevket, Krestyaninov, Oleg, Chandwaney, Raj, and Rinfret, Stephane

Subjects
*CHRONIC total occlusion, *PERCUTANEOUS coronary intervention
Published
2023
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26. EFFECT OF OCCLUSION LESION AGE ON OUTCOMES OF CHRONIC TOTAL OCCLUSION PERCUTANEOUS CORONARY INTERVENTION.

Author

Karacsonyi, Judit, Kostantinis, Spyridon, Simsek, Bahadir, Allana, Salman S., Rempakos, Athanasios, Khatri, Jaikirshan J., Krestianinov, Oleg, Jaffer, Farouc A., Alaswad, Khaldoon, ElGuindy, Ahmed Mohamed, Jefferson, Brian K., Gorgulu, Sevket, Poommipanit, Paul, Karmpaliotis, Dimitri, Kirtane, Ajay J., McEntegart, Margaret, Choi, James W., Rafeh, Nidal Abi, Goktekin, Omer, and Sandoval, Yader

Subjects
*CHRONIC total occlusion, *PERCUTANEOUS coronary intervention, *MYOCARDIAL infarction
Published
2023
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27. CONTEMPORARY OUTCOMES OF CHRONIC TOTAL OCCLUSION INTERVENTIONS: UPDATE FROM THE PROGRESS-CTO (PROSPECTIVE GLOBAL REGISTRY FOR THE STUDY OF CHRONIC TOTAL OCCLUSION INTERVENTION) INTERNATIONAL REGISTRY.

Author

Allana, Salman S., Kostantinis, Spyridon, Simsek, Bahadir, Karacsonyi, Judit, Alaswad, Khaldoon, Rempakos, Athanasios, Khelimskii, Dmitrii, Karmpaliotis, Dimitrios I., Jaffer, Farouc A., Khatri, Jaikirshan J., Poommipanit, Paul, Choi, James W., Patel, Mitul P., Koutouzis, Michail, Mahmud, Ehtisham, Elbarouni, Basem, Jaber, Wissam A., Rinfret, Stéphane, Potluri, Srinivasa P., and Nicholson, William J.

Subjects
*CHRONIC total occlusion
Published
2023
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28. LESION COMPLEXITY AND PROCEDURAL OUTCOMES ASSOCIATED WITH OSTIAL CHRONIC TOTAL OCCLUSIONS: INSIGHTS FROM THE PROGRESS-CTO REGISTRY.

Author

Allana, Salman S., Kostantinis, Spyridon, Simsek, Bahadir, Karacsonyi, Judit, Alaswad, Khaldoon, Poommipanit, Paul, Khatri, Jaikirshan J., Choi, James W., Rempakos, Athanasios, Krestianinov, Oleg, Khelimskii, Dmitrii, Karmpaliotis, Dimitrios I., Jaffer, Farouc A., Davies, Rhian E., Bagur, Rodrigo, Gorgulu, Sevket, Potluri, Srinivasa P., Sandoval, Yader, Mahmud, Ehtisham, and Patel, Mitul P.

Subjects
*CHRONIC total occlusion
Published
2023
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29. VALIDATION OF THE OPEN-CLEAN CHRONIC TOTAL OCCLUSION PERCUTANEOUS CORONARY INTERVENTION PERFORATION SCORE IN A MULTICENTER REGISTRY.

Author

Simsek, Bahadir, Carlino, Mauro, Pan, Manuel, Vemmou, Evangelia, Nikolakopoulos, Ilias, Kostantinis, Spyridon, Karacsonyi, Judit, Agostoni, Pierfrancesco, Alexandre, Avran, Knaapen, Paul, La Manna, Alessio, Spratt, James C.S., Tanabe, Masaki, Walsh, Simon J., Goktekin, Omer, Allana, Salman S., Rangan, Bavana V., Rempakos, Athanasios, Choi, James W., and Kearney, Kathleen E.

Subjects
*CHRONIC total occlusion, *PERCUTANEOUS coronary intervention
Published
2023
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30. URGENT MECHANICAL CIRCULATORY SUPPORT SCORE IN CHRONIC TOTAL OCCLUSION PERCUTANEOUS CORONARY INTERVENTION.

Author

Karacsonyi, Judit, Stanberry, Larissa, Simsek, Bahadir, Kostantinis, Spyridon, Allana, Salman S., Alaswad, Khaldoon, Jaffer, Farouc A., Poommipanit, Paul, Khatri, Jaikirshan J., Patel, Mitul P., Sheikh, Abdul, Wollmuth, Jason R., Uretsky, Barry F., Yeh, Robert W., Chandwaney, Raj H., Rempakos, Athanasios, ElGuindy, Ahmed Mohamed, Rafeh, Nidal Abi, Sandoval, Yader, and Burke, M Nicholas

Subjects
*CHRONIC total occlusion, *ARTIFICIAL blood circulation, *PERCUTANEOUS coronary intervention
Published
2023
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