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Chronic total occlusion

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https://www.readbyqxmd.com/read/28545278/-the-relationship-between-fragmented-qrs-complex-and-coronary-collateral-circulation-in-patients-with-chronic-total-occlusion-lesion-without-prior-myocardial-infarction
#1
X J Gu, S J Shan, Z Z Liu, G Z Jin, Z Y Hu, L L Zhu, J Zhang
Objective: To explore the relationship between fragmented QRS complex(fQRS) and coronary collateral circulation(CCC) in patients with chronic total occlusion(CTO)lesion without prior myocardial infarction. Methods: This retrospective study analyzed 238 consecutive patients with CTO lesion in one of the major coronary arteries from May 2014 to October 2015 in our department. Patients were divided into poor CCC group (grade 0 and 1, 58 cases) and good CCC group(grade 2 and 3, 180 cases) based on Rentrop's classification of CCC...
April 24, 2017: Zhonghua Xin Xue Guan Bing za Zhi
https://www.readbyqxmd.com/read/28542030/predictors-of-poor-clinical-outcomes-after-successful-chronic-total-occlusion-intervention-with-drug-eluting-stents
#2
Gwang-Sil Kim, Byeong-Keuk Kim, Dong-Ho Shin, Jung-Sun Kim, Myeong-Ki Hong, Hyeon-Cheol Gwon, Hyo-Soo Kim, Cheol Woong Yu, Hun Sik Park, In-Ho Chae, Seung-Woon Rha, Yangsoo Jang
BACKGROUND: The aim of this study was to identify the prognostic predictors for the worse clinical outcomes after a successful chronic total occlusion (CTO) intervention with drug-eluting stents. PATIENTS AND RESULTS: A total of 2334 patients in the multicenter Korean CTO registry who underwent a successful CTO intervention with drug-eluting stents (first generation, 1367, new generation, 967) were enrolled. The primary endpoint was the composite of cardiac death, myocardial infarction, and stent thrombosis...
May 24, 2017: Coronary Artery Disease
https://www.readbyqxmd.com/read/28539570/usefulness-and-safety-of-a-novel-modification-of-the-retrograde-approach-for-the-long-tortuous-chronic-total-occlusion-of-coronary-arteries
#3
Zehan Huang, Bin Zhang, Weilu Chai, Dunliang Ma, Hongtao Liao, Zhian Zhong, Feng Wang, Jingye Lin
The aim of this study was to evaluate the feasibility and efficacy of the Guidezilla guide extension catheter in a reverse controlled antegrade and retrograde subintimal tracking (CART) technique for chronic total occlusion (CTO) recanalization.We retrospectively collected 80 CTO cases using reverse CART technology from January 2015 to October 2015 and 20 CTO cases using Guidezilla reverse-CART technology from October 2015 to March 2016. Guidezilla was applied in cases when it was difficult to advance a retro-guidewire through an occlusion segment into the antegrade guide catheter...
May 23, 2017: International Heart Journal
https://www.readbyqxmd.com/read/28537940/third-generation-drug-eluting-stents-can-they-be-used-in-chronic-total-occlusions
#4
Luiz F Ybarra, Stéphane Rinfret
No abstract text is available yet for this article.
May 19, 2017: Coronary Artery Disease
https://www.readbyqxmd.com/read/28537939/current-perspectives-on-revascularization-in-multivessel-st-elevation-myocardial-infarction
#5
Guy Witberg, Ran Kornowski
Up to 50% of patients presenting with ST elevation myocardial infarction (STEMI) are found to have multivessel coronary artery disease. These patients have a worse prognosis compared with the overall STEMI population. Two revascularization strategies are possible for these patients: treating the infarct-related artery percutaneous coronary intervention (IRA-PCI) only or achieving Complete revascularization (CR), either through an immediate multivessel PCI during the index angiography or during a second-staged procedure...
May 19, 2017: Coronary Artery Disease
https://www.readbyqxmd.com/read/28529807/a-novel-modified-reverse-controlled-antegrade-and-retrograde-subintimal-tracking-technique-for-bypassing-the-calcified-proximal-cap-of-coronary-total-occlusions
#6
Tsuyoshi Isawa, Masahiko Ochiai, Masato Munehisa, Tatsushi Ootomo
Antegrade crossing is the most common approach to chronic total occlusions (CTOs). However, it is sometimes difficult to penetrate the proximal hard cap with guidewires, especially in the case of CTOs of anomalous coronary arteries because of a lack of support. Herein, we describe a novel, modified reverse controlled antegrade and retrograde subintimal tracking (CART) technique in which the dissection reentry was intentionally created in the proximal segment of the vessel, not within the occluded segment, using retrograde guidewire and the aid of an antegrade balloon...
2017: Case Reports in Cardiology
https://www.readbyqxmd.com/read/28524835/collapsin-response-mediator-protein-2-induced-retinal-ischemic-injury-in-a-novel-mice-model-of-ocular-ischemia-syndrome
#7
Yu Wang, Xiao-Lei Wang, Guo-Li Xie, Hong-Yang Li, Yan-Ling Wang
BACKGROUND: Collapsin response mediator protein-2 (CRMP2) has been shown to be involved in ischemia/hypoxia (IH) injury. We determined whether CRMP2 modulates ischemic injury in the retinal of Ocular ischemic syndrome (OIS). This study was to explore the molecular mechanisms underlying OIS in a novel mice model. METHODS: Experiments were performed on adult male C57/BL6 mice that received bilateral internal carotid arteries ligation for 1, 2, or 4 weeks. The mice received injection of calpeptin group before occlusion for 4 weeks or not...
June 5, 2017: Chinese Medical Journal
https://www.readbyqxmd.com/read/28521920/chronic-total-occlusion-intervention-does-the-end-justify-the-means
#8
EDITORIAL
Seung-Jung Park, Pil Hyung Lee, Seung-Whan Lee
No abstract text is available yet for this article.
May 22, 2017: JACC. Cardiovascular Interventions
https://www.readbyqxmd.com/read/28521919/intravascular-ultrasound-analysis-of-intraplaque-versus-subintimal-tracking-in-percutaneous-intervention-for-coronary-chronic-total-occlusions-and-association-with-procedural-outcomes
#9
Lei Song, Akiko Maehara, Matthew T Finn, Sanjog Kalra, Jeffrey W Moses, Manish A Parikh, Ajay J Kirtane, Michael B Collins, Tamim M Nazif, Khady N Fall, Raja Hatem, Ming Liao, Tiffany Kim, Philip Green, Ziad A Ali, Candido Batres, Martin B Leon, Gary S Mintz, Dimitri Karmpaliotis
OBJECTIVES: Using intravascular ultrasound (IVUS), the authors compared outcomes by observed wire position (intraplaque vs. subintimal) achieved during successful chronic total occlusion (CTO) lesion treatment. BACKGROUND: Recent successes in CTO percutaneous coronary intervention (PCI) have used both intraluminal and subintimal wire tracking to improve procedural success. IVUS may be used to determine the course of wire tracking after crossing a CTO. METHODS: From March 2014 to March 2016, data were collected into a single-center database from 219 patients undergoing CTO PCI with concomitant IVUS imaging...
May 22, 2017: JACC. Cardiovascular Interventions
https://www.readbyqxmd.com/read/28516401/endovascular-crossing-of-chronic-total-occlusions-using-an-impulse-an-explorative-design-study
#10
Aimée Sakes, Marleen van der Wiel, Dimitra Dodou, Paul Breedveld
In this study we investigated whether exerting an impulse on a Chronic Total Occlusion (CTO) improves the success rate of CTO crossing as compared to the currently used method of statically pushing the guidewire against the CTO. A prototype (Ø2 mm) was developed that generates translational momentum using a spring-loaded indenter and converts it to an impulse during impact. Mechanical performance was evaluated by measuring the peak force and momentum for different spring compressions and strike distances in air and blood-mimicking fluid...
June 2017: Cardiovascular Engineering and Technology
https://www.readbyqxmd.com/read/28515854/determinants-of-percutaneous-coronary-intervention-success-in-repeat-chronic-total-occlusion-procedures-following-an-initial-failed-attempt
#11
Cecilia Cuevas, Nicola Ryan, Alicia Quirós, Juan Gustavo Del Angel, Nieves Gonzalo, Pablo Salinas, Pilar Jiménez-Quevedo, Luis Nombela-Franco, Ivan Nuñez-Gil, Antonio Fernandez-Ortiz, Carlos Macaya, Javier Escaned
AIM: To investigate the rates and determinants of success of repeat percutaneous coronary intervention (PCI) following an initial failed attempt at recanalising the chronic total occlusions (CTO) percutaneously. METHODS: In 445 consecutive first attempt CTO-PCI procedures in our institution, procedural failure occurred in 149 (33.5%). Sixty-four re-PCI procedures were performed in 58 patients (39%) all had a single CTO. Procedural and outcome data in the re-PCI population was entered into the institutional database...
April 26, 2017: World Journal of Cardiology
https://www.readbyqxmd.com/read/28515407/comparison-of-the-outback-%C3%A2-elite-reentry-catheter-and-the-bi-directional-approach-after-failed-antegrade-approach-for-femoro-popliteal-occlusive-disease
#12
Daizo Kawasaki, Masashi Fukunaga, Tsuyoshi Nakata, Masaaki Kato, Nobukazu Ohkubo
AIM: A successful antegrade wire crossing for femoro-popliteal chronic total occlusion (FP-CTO) is still a technical challenge. We attempted to demonstrate the safety and feasibility of the OUTBACK(®) Elite reentry catheter and the bi-directional approach for failed FP-CTO cases with the antegrade approach. METHODS: Endovascular therapy for FP-CTO was performed in 219 lesions from May 2013 to December 2016 at Morinomiya Hospital. We retrospectively analyzed the data of 43 consecutive lesions which underwent endovascular therapy using the bi-directional approach with distal access and the mono-directional approach with the OUTBACK(®) Elite reentry catheter for FP-CTO lesions...
May 17, 2017: Journal of Atherosclerosis and Thrombosis
https://www.readbyqxmd.com/read/28512069/optical-coherence-tomography-findings-insights-from-the-randomised-multicentre-trial-investigating-angiographic-outcomes-of-hybrid-sirolimus-eluting-stents-with-biodegradable-polymer-compared-with-everolimus-eluting-stents-with-durable-polymer-in-chronic-total
#13
Koen Teeuwen, Eva M Spoormans, Johan Bennett, Christophe Dubois, Walter Desmet, Giovanni J Ughi, Ann Belmans, Johannes C Kelder, Jan G P Tijssen, Pierfrancesco Agostoni, Maarten J Suttorp, Tom Adriaenssens
AIMS: The PRISON IV trial investigated the next-generation sirolimus-eluting stent (SES) with ultra-thin struts and biodegradable polymer against the second-generation everolimus-eluting stent (EES) with thin struts and durable polymer in patients with successfully recanalised chronic total occlusions (CTO). In this study, we examined the secondary optical coherence tomography endpoints. METHODS AND RESULTS: The main PRISON IV trial randomised 330 patients to either SES or EES...
May 18, 2017: EuroIntervention
https://www.readbyqxmd.com/read/28504230/macedonia-coronary-and-structural-heart-interventions-from-2010-to-2015
#14
Sasko Kedev, Biljana Zafirovska, Oliver Kalpak, Slobodan Antov, Jorgo Kostov, Igor Spiroski, Hristo Pejkov, Marjan Boshev, Ivan Vasllev, Aleksandar Jovkovski, Hajber Taravari, Danica Petkoska, Darko Kitanoski
The aim of this report is to describe invasive cardiology procedural practice in Macedonia during the period from 2010 to 2015. Details of all consecutive 39,899 patients who underwent cardiovascular, peripheral or structural heart procedures during the period from 2010 until 2015 were examined. Clinical and procedure characteristics, access site, procedural success and complications were analysed. The number of coronary angiographies increased from 5,540 in 2010 to 8,550 in 2015. Transfemoral access (TFA) was present in 4% of coronary angiographies in 2010 and had decreased to 1% in 2015...
May 15, 2017: EuroIntervention
https://www.readbyqxmd.com/read/28500138/legacy-effect-of-coronary-perforation-complicating-percutaneous-coronary-intervention-for-chronic-total-occlusive-disease-an-analysis-of-26-807-cases-from-the-british-cardiovascular-intervention-society-database
#15
Tim Kinnaird, Richard Anderson, Nicholas Ossei-Gerning, James Cockburn, Alex Sirker, Peter Ludman, Mark deBelder, Simon Walsh, Elliot Smith, Colm Hanratty, James Spratt, Julian Strange, David Hildick-Smith, Mamas A Mamas
BACKGROUND: Coronary perforation (CP) during chronic total occlusion percutaneous coronary intervention for stable angina (CTO-PCI) is a rare but serious event. The evidence base is limited, and the long-term effects are unclear. Using a national PCI database, the incidence, predictors, and outcomes of CP during CTO-PCI were defined. METHODS AND RESULTS: Data analyzed from the British Cardiovascular Intervention Society data set on all CTO-PCI procedures performed in England and Wales between 2006 and 2013...
May 2017: Circulation. Cardiovascular Interventions
https://www.readbyqxmd.com/read/28499595/impact-of-calcium-on-chronic-total-occlusion-percutaneous-coronary-interventions
#16
Judit Karacsonyi, Dimitri Karmpaliotis, Khaldoon Alaswad, Farouc A Jaffer, Robert W Yeh, Mitul Patel, Ehtisham Mahmud, William Lombardi, Michael R Wyman, Anthony Doing, Jeffrey W Moses, Ajay Kirtane, Manish Parikh, Ziad Ali, David Kandzari, Nicholas Lembo, Santiago Garcia, Barbara A Danek, Aris Karatasakis, Erica Resendes, Pratik Kalsaria, Bavana V Rangan, Imre Ungi, Craig A Thompson, Subhash Banerjee, Emmanouil S Brilakis
We sought to examine the impact of calcific deposits on the outcomes of chronic total occlusion (CTO) percutaneous coronary intervention (PCI). The outcomes of 1,476 consecutive CTO PCIs performed in 1,453 patients (65.5 ± 10 years, 85% male) between 2012 and 2016 at 11 US centers were evaluated. Moderate or severe quantity of calcium was present in 58% of target lesions. Calcified lesions were more tortuous and more likely to have proximal cap ambiguity and interventional collaterals. PCI of moderately/severely calcified CTOs more often required use of the retrograde approach (54% vs 30%, p <0...
April 13, 2017: American Journal of Cardiology
https://www.readbyqxmd.com/read/28495430/patient-versus-physician-variation-in-use-of-transradial-percutaneous-coronary-intervention
#17
Shariq Shamim, Fengming Tang, David Safley, Philip Jones, John A Spertus, Dmitri Baklanov
The prevalence of radial access for transradial catheterization remains low in the United States, occurring in only 28% of cases in the National Cardiovascular Data Registry (NCDR) CathPCI. It is unknown whether the low adoption rate has been influenced by patient characteristics or is more operator dependent. In a 10-center study, we compared clinical and demographic characteristics among 323 radial and 1,506 femoral access percutaneous coronary intervention (PCIs) performed by 65 interventionists capable of radial PCI...
March 30, 2017: American Journal of Cardiology
https://www.readbyqxmd.com/read/28491737/catheter-ablation-of-ventricular-tachycardia-in-the-setting-of-electrical-storm-after-revascularization-of-a-chronic-total-occlusion-of-the-right-coronary-artery-an-uncommon-presentation-of-reperfusion-arrhythmia
#18
Sebastian Koenig, Arash Arya, Gerhard Hindricks, Borislav Dinov
No abstract text is available yet for this article.
November 2016: HeartRhythm Case Reports
https://www.readbyqxmd.com/read/28488101/impact-of-chronic-renal-failure-on-safety-and-effectiveness-of-paclitaxel-eluting-stents-for-femoropopliteal-artery-disease-subgroup-analysis-from-zilver-ptx-post-market-surveillance-study-in-japan
#19
Yukihisa Ogawa, Hiroyoshi Yokoi, Takao Ohki, Kimihiko Kichikawa, Masato Nakamura, Kimihiro Komori, Shinsuke Nanto, Erin E O'Leary, Aaron E Lottes, Alan T Saunders, Michael D Dake
PURPOSE: Favorable long-term outcomes of the Zilver PTX drug-eluting stent (DES) in femoropopliteal lesions have been demonstrated. Chronic renal failure (CRF) has been shown to be a risk factor for restenosis and decreased limb salvage. The results of the DES in patients with CRF have not previously been reported. This study compares the results with the DES in patients with CRF and those without CRF. METHODS: This retrospective analysis from the Zilver PTX Japan Post-Market Surveillance Study included 321 patients with CRF and 584 patients without CRF...
May 9, 2017: Cardiovascular and Interventional Radiology
https://www.readbyqxmd.com/read/28487112/outcomes-of-self-expanding-ptfe-covered-stent-versus-bare-metal-stent-for-chronic-iliac-artery-occlusion-in-matched-cohorts-using-propensity-score-modelling
#20
M Piazza, F Squizzato, A Dall'Antonia, S Lepidi, M Menegolo, F Grego, M Antonello
OBJECTIVES: The aim was to compare outcomes of self expanding PTFE covered stents (CSs) with bare metal stents (BMSs) in the treatment of iliac artery occlusions (IAOs). METHODS: Between January 2009 and December 2015, 128 iliac arteries were stented for IAO. A CS was implanted in 78 iliac arteries (61%) and a BMS in 50 (49%). After propensity score matching, 94 limbs were selected and underwent stenting (47 for each group). Thirty day outcomes and midterm patency were compared; follow-up results were analysed with Kaplan-Meier curves...
May 6, 2017: European Journal of Vascular and Endovascular Surgery
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