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https://www.readbyqxmd.com/read/28617303/prognostic-value-of-coronary-collaterals-in-patients-with-acute-coronary-syndromes
#1
Alparslan Kurtul, Selcuk Ozturk
BACKGROUND: The presence of good coronary collateral circulation (CCC) can protect and preserve myocardium from ischemia, increase myocardial contractility, and reduce adverse clinical events. However, its impact on mortality is still a topic of debate, particularly in acute coronary syndrome (ACS). The aim of this study was to investigate the association of CCC with cardiac risk factors and in-hospital mortality in patients hospitalized with a diagnosis of ACS. METHODS: The study population included 2286 patients with ACS who underwent coronary angiography and were found to have at least 90% significant lesion in at least one major coronary artery...
April 17, 2017: Coronary Artery Disease
https://www.readbyqxmd.com/read/28610440/circumflex-coronary-artery-originating-from-the-right-pulmonary-artery-in-adult
#2
Ahmet Daylan, Serkan Ertugay, Anıl Ziya Apaydın, Emrah Oğuz
Anomalous origin of the circumflex coronary artery from the right pulmonary artery is rare, and symptoms are related to the collateralization and amount of myocardium that it supplies. A 50-year-old woman with severe bicuspid aortic valve stenosis had the diagnosis of anomalous origin of the circumflex coronary artery from the right pulmonary artery before valve replacement. Ligation and division of the circumflex coronary artery was performed. Myocardial ischemia was not observed. The patient was discharged after an uneventful recovery...
January 1, 2017: Asian Cardiovascular & Thoracic Annals
https://www.readbyqxmd.com/read/28595879/predictors-of-successful-hybrid-approach-chronic-total-coronary-artery-occlusion%C3%A2-stenting-an-improved-model-with-novel-correlates
#3
Stephen G Ellis, M Nicholas Burke, M Bilal Murad, John J Graham, Ramy Badawi, Catelin Toma, Henry Meltser, Ravi Nair, Chris Buller, Patrick L Whitlow
OBJECTIVES: The aim of this study was to develop a hybrid approach-specific model to predict chronic total coronary artery occlusion (CTO) percutaneous coronary intervention success, useful for experienced but not ultra-high-volume operators. BACKGROUND: CTO percutaneous coronary intervention success rates vary widely and have improved with the "hybrid approach," but current predictive models for success have major limitations. METHODS: Data were obtained from consecutively attempted patients from 7 clinical sites (9 operators, mean annual CTO volume 61 ± 17 cases)...
June 12, 2017: JACC. Cardiovascular Interventions
https://www.readbyqxmd.com/read/28595201/-as-cardioprotective-and-angiogenic-biomarker-can-ghrelin-predict-coronary-collateral-development-and-severity-of-coronary-atherosclerosis
#4
Mehmet Kadri Akboğa, Gülten Taçoy, Canan Yılmaz Demirtaş, Sedat Türkoğlu, Bülent Boyacı, Atiye Çengel
OBJECTIVE: Ghrelin exerts protective effects on cardiovascular system by inhibiting progression of atherosclerosis, supression of vascular inflammation, and stimulating angiogenesis. Thus, the aim of this study was to investigate the effect of serum ghrelin on coronary collateral development and SYNTAX score in patients with severe coronary artery disease. METHODS: Total of 91 patients who had ≥90% stenosis in at least one major coronary artery were prospectively included in this cross-sectional, observational study...
June 2017: Türk Kardiyoloji Derneği Arşivi: Türk Kardiyoloji Derneğinin Yayın Organıdır
https://www.readbyqxmd.com/read/28595199/-coronary-collateral-circulation-and-ghrelin-peptide
#5
EDITORIAL
Alp Burak Çatakoğlu
No abstract text is available yet for this article.
June 2017: Türk Kardiyoloji Derneği Arşivi: Türk Kardiyoloji Derneğinin Yayın Organıdır
https://www.readbyqxmd.com/read/28588860/myocardial-ischemia-induced-by-major-aortopulmonary-collateral-arteries-treated-with-transcatheter-coil-embolization
#6
Ryota Kakizaki, Taiki Tojo, Yoshiyasu Minami, Toshimi Koitabashi, Reiko Woodhams, Takao Shimohama, Masahiro Ishii, Junya Ako
Major aortopulmonary collateral arteries branching from coronary arteries may cause coronary steal. The careful follow-up is needed irrespective of symptoms because increasing physical activities and oxygen demand along with the age may induce myocardial ischemia. Transcatheter intervention by well-trained physician would be a treatment option in patients with myocardial ischemia.
June 2017: Clinical Case Reports
https://www.readbyqxmd.com/read/28584590/external-compression-of-epicardial-coronary-arteries-with-partial-calcific-pericarditis
#7
Zubair Ahmed Khan, Muhammad Rizwan Sardar, Simon K Topalian
Calcific pericarditis (CP) is a rare disease which results from long-standing pericardial inflammation. Pericardial calcification may completely or partially encase the ventricles, resulting in impaired diastolic filling. We present a case of a 53-year-old male who was incidentally found to have annular CP resulting in external compression of a large territory diagonal branch (D1) reaching the apex with likely chronically occluded left anterior descending artery with collateral circulation from the right coronary artery with hemodynamic compromise on coronary angiography...
January 2017: Heart Views: the Official Journal of the Gulf Heart Association
https://www.readbyqxmd.com/read/28579068/the-impact-of-age-on-urethroplasty-success
#8
Mya Levy, Ronak A Gor, Alex J Vanni, Kristian Stensland, Bradley A Erickson, Jeremy B Myers, Bryan B Voelzke, Thomas G Smith, Benjamin N Breyer, Christopher McClung, Nejd F Alsikafi, Yunhua Fan, Sean P Elliott
OBJECTIVE: To determine if age is an independent predictor of surgical success in patients undergoing urethroplasty. Urethroplasty performed by excision and primary anastomosis depends on vascular collateralization. Successful augmented urethroplasty depends on graft neovascularization. Older patients have more comorbid conditions including peripheral vascular disease associated with reduced penile blood flow. MATERIALS AND METHODS: A retrospective review of urethroplasties from 11 institutions...
June 1, 2017: Urology
https://www.readbyqxmd.com/read/28570240/retrograde-intervention-of-a-right-coronary-artery-chronic-total-occlusion-through-an-ipsilateral-kugel-s-artery-collateral
#9
Koyu Sakai, Junichi Omura, Masashi Iwabuchi
Kugel described the arteria anastomotica auricularis magna. We describe a first case of chronic total occlusion of the right coronary artery that was successfully recanalized using the reverse controlled antegrade and retrograde subintimal tracking technique through the ipsilateral Kugel's artery collateral.
June 2017: Journal of Invasive Cardiology
https://www.readbyqxmd.com/read/28566934/a-novel-risk-score-in-predicting-failure-or-success-for-antegrade-approach-to-percutaneous-coronary-intervention-of-chronic-total-occlusion-antegrade-cto-score
#10
Mohammad Hasan Namazi, Ali Reza Serati, Hosein Vakili, Morteza Safi, Saeed Ali Pour Parsa, Habibollah Saadat, Maryam Taherkhani, Sepideh Emami, Shamseddin Pedari, Masoomeh Vatanparast, Mohammad Reza Movahed
Total occlusion of a coronary artery for more than 3 months is defined as chronic total occlusion (CTO). The goal of this study was to develop a risk score in predicting failure or success during attempted percutaneous coronary intervention (PCI) of CTO lesions using antegrade approach. This study was based on retrospective analyses of clinical and angiographic characteristics of CTO lesions that were assessed between February 2012 and February 2014. Success rate was defined as passing through occlusion with successful stent deployment using an antegrade approach...
June 2017: International Journal of Angiology: Official Publication of the International College of Angiology, Inc
https://www.readbyqxmd.com/read/28566292/effect-of-permanent-right-internal-mammary-artery-closure-on-coronary-collateral-function-and-myocardial-ischemia
#11
Michael Stoller, Christian Seiler
BACKGROUND: The objective of this study is to test the effect of permanent right internal mammary artery device closure on coronary collateral function and myocardial ischemia. METHODS AND RESULTS: This was a prospective, open-label clinical trial in 50 patients with coronary artery disease. The primary study end point was coronary collateral flow index as obtained during a 1-minute proximal right coronary artery (RCA) and left coronary artery balloon occlusion at baseline before and at follow-up examination 6 weeks after distal right internal mammary artery device closure...
June 2017: Circulation. Cardiovascular Interventions
https://www.readbyqxmd.com/read/28554340/cardiac-mri-t1-mapping-in-unrepaired-anomalous-left-coronary-artery-from-the-pulmonary-artery
#12
Kate Hanneman, Rachel Wald
A 29-year-old gravida1 para1 woman presented with increasing fatigue. Multi-modality imaging demonstrated the left coronary artery arising from the main pulmonary artery with large collateral vessels in the interventricular septum, in keeping with unrepaired anomalous left coronary artery from the pulmonary artery. Cardiac MRI T1 mapping demonstrated globally elevated non-contrast T1 and extracellular volume fraction values, which suggested the presence of diffuse interstitial myocardial fibrosis. Cardiac MRI T1 mapping allows for a new dimension of myocardial characterisation, providing insight into subtle, diffuse abnormalities at the tissue level...
May 30, 2017: Cardiology in the Young
https://www.readbyqxmd.com/read/28553874/clinical-significance-and-determinants-of-prompt-recruitment-collaterals-during-primary-percutaneous-coronary-intervention
#13
Ömer Şen, Samir Allahverdiyev, Mustafa Topuz, Ahmet Oytun Baykan, Fahrettin Oz, Mevlut Koç
BACKGROUND: Due to ischemic time delays from the chest pain occurrence in acute STEMI, prompt recruitment collaterals (PRCCs) to infarct related artery (IRA) are the major protective structures during this period. So, we aimed to investigate the clinical significance and determinants of PRCCs in acute STEMI patients. METHODS: A total of 1375 consecutive acute STEMI patients were prospectively enrolled in the study. The patients were divided in two groups, according to PRCCs to IRA; Rentrop≤1 were defined as inadequate collateral development (ICD) group and Rentrop≥2 defined as adequate collateral development (ACD) group...
May 29, 2017: Kardiologia Polska
https://www.readbyqxmd.com/read/28551719/t-wave-changes-in-patients-with-wellens-syndrome-are-associated-with-increased-myocardial-mechanical-and-electrical-dispersion
#14
Ivan Stankovic, Srdjan Kafedzic, Aleksandra Janicijevic, Radosava Cvjetan, Tijana Vulovic, Milica Jankovic, Ivan Ilic, Biljana Putnikovic, Aleksandar N Neskovic
Some patients with unstable angina and critical stenosis of the left anterior descending coronary artery (LAD) present with Wellens syndrome (WS), i.e., inverted or biphasic T-waves in the anterior precordial leads. We assessed clinical, angiographic, electro- and echocardiographic characteristic of patients with WS. In this retrospective study, clinical, angiographic, electro- and echocardiographic characteristic of 35 patients with WS were compared to 57 patients with critical LAD stenosis and normal resting electrocardiogram (ECG), and 45 subjects with normal coronary angiogram...
May 27, 2017: International Journal of Cardiovascular Imaging
https://www.readbyqxmd.com/read/28550240/the-role-of-gst-polymorphism-in-reperfusion-induced-oxidative-stress-inflammatory-responses-and-clinical-complications-after-surgical-and-percutaneous-coronary-intervention
#15
Örs Pintér, Péter Hardi, Tibor Nagy, Balázs Gasz, Viktoria Kovács, Endre Arató, László Sínay, László Lénárd, Gábor Jancsó
BACKGROUND: Patients having coronary artery disease treated by coronary bypass or PCI procedure are exposed to tissue damage because of the phenomenon called reperfusion injury. Reperfusion injury can be characterized/monitored by oxidative stress parameters, inflammatory markers and by post-operative complication rate. OBJECTIVE: Beyond the obvious factors determining its severity (affected myocardial mass, ischaemic time, collateral circulation etc.) we examined the GST enzyme group's most cardio selective member, GSTP1 and its genetic polymorphism if there is any genetically determined preventive effect on the above-mentioned parameters...
May 24, 2017: Clinical Hemorheology and Microcirculation
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
#16
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/28539570/usefulness-and-safety-of-a-novel-modification-of-the-retrograde-approach-for-the-long-tortuous-chronic-total-occlusion-of-coronary-arteries
#17
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/28539296/-establishment-of-a-rabbit-model-of-small-diameter-vascular-graft-replacement
#18
Jia-Qing Zhang, Kun-Tang Chen, Fu-Wei Zhang, Shao-Bin Li, Yuan-Zhou Wu, Jing Feng, Wu-Jun Wang, Yu-Sheng Yan
OBJECTIVE: To establish an rabbit model that mimics the hemodynamics of the bypass graft after coronary artery bypass surgery. METHODS: Sixteen New Zealand rabbits were randomly divided into two groups for abdominal aortic artery replacement using a 3-cm-long ePTFE graft with an inner diameter 4 mm through an incision at 1/3 from the middle to the lower part of the abdomen (group A) or in the lower abdomen (group B). The general conditions of the rabbits, operative time, number of collateral vessels that needed to be ligated, rate of massive intraoperative bleeding, fluctuation of vascular anastomosis after surgery, patency rate of the graft on day 7 after the operation were compared between the two groups...
May 20, 2017: Nan Fang Yi Ke da Xue Xue Bao, Journal of Southern Medical University
https://www.readbyqxmd.com/read/28533990/anomalous-origin-of-right-coronary-artery-originating-from-the-pulmonary-trunk-arcapa-an-incidental-finding-in-a-patient-presenting-with-chest-pain
#19
Pragathi Balakrishna, Michael Illovsky, Youssef M Al-Saghir, Abdul M Minhas
Anomalous origin of the right coronary artery originating from the pulmonary trunk (ARCAPA) is a rare congenital coronary anomaly with an estimated prevalence of 0.002%. Most patients are asymptomatic and the anomaly is detected incidentally during evaluation for other problems. Occasionally, ARCAPA may lead to myocardial ischemia and/or sudden cardiac arrest. We present a case of a 55-year-old female with a history of hypertension who presented to the emergency department with intermittent chest discomfort for three days...
April 17, 2017: Curēus
https://www.readbyqxmd.com/read/28529306/normalization-of-diffuse-st-depression-with-avr-elevation-after-rehydration-in-a-patient-with-severe-aortic-stenosis
#20
Sachin R Patel, Vikas J Patel, Brittany Clark, George Rust
BACKGROUND Isolated ST elevation in lead aVR in combination with global ST depression with normalization after rehydration is a unique electrocardiographic pattern that is associated with a broad range of diagnoses. Its association with left main coronary artery disease and other acute coronary syndromes suggest the need for early and aggressive cardiac evaluation. CASE REPORT A 53-year-old man presented with altered mental status and loss of consciousness. He was unresponsive, hypotensive, tachycardiac, and diaphoretic...
May 22, 2017: American Journal of Case Reports
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