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Coronary Sinus

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https://www.readbyqxmd.com/read/29774887/association-of-difference-in-coronary-sinus-diameter-by-computed-tomographic-angiography-between-patients-in-and-not-in-stable-atherosclerotic-plaque-s
#1
Yancui Li, Wen Liang, Jianchun Zhang, Ruchen Peng
BACKGROUND Pathological finding fail to describe the morphology of coronary arterial plaques. Retrograde cardiac arteriography is a complicated procedure and does not detect all left posterior and marginal veins of the heart. Magnetic resonance angiography has long scan time and low spatial resolution. The objective of the present study was to assess the possible utility of the difference in coronary sinus diameter to quantify stable atherosclerotic plaque(s) using 256-slice coronary computed tomographic angiography...
May 18, 2018: Medical Science Monitor: International Medical Journal of Experimental and Clinical Research
https://www.readbyqxmd.com/read/29774406/reduced-global-myocardial-perfusion-reserve-in-dcm-and-hcm-patients-assessed-by-cmr-based-velocity-encoded-coronary-sinus-flow-measurements-and-first-pass-perfusion-imaging
#2
Michael Bietenbeck, Anca Florian, Zornitsa Shomanova, Claudia Meier, Ali Yilmaz
BACKGROUND: Coronary microvascular dysfunction (CMD) is an independent predictor of poor prognosis in patients suffering from dilative or hypertrophic cardiomyopathy (DCM/HCM). To assess CMD, quantitative myocardial first-pass perfusion (1P) cardiovascular magnetic resonance (CMR) can be performed. Coronary sinus flow (CSF) measurements at rest and during maximal vasodilatation are an alternative and well-validated approach for the quantification of global myocardial blood flow (MBF) in CMR...
May 17, 2018: Clinical Research in Cardiology: Official Journal of the German Cardiac Society
https://www.readbyqxmd.com/read/29763599/giant-circumflex-artery-aneurysm-with-a-coronary-sinus-fistula
#3
Richard Libertini, David Walbridge, Hefin R Jones, Mark Gunning, Christopher Mr Satur
Giant coronary artery aneurysms (GCCAA) are extremely rare entities, and of the circumflex artery we are aware of only 13 case reports. We therefore provide this case report to add evidence of the natural history and pathophysiology and describe successful surgical treatment of the condition.
May 12, 2018: Annals of Thoracic Surgery
https://www.readbyqxmd.com/read/29759837/clinical-features-and-sites-of-ablation-for-patients-with-incessant-supraventricular-tachycardia-from-concealed-nodofascicular-and-nodoventricular-tachycardias
#4
Frederick T Han, Eric M Riles, Nitish Badhwar, Melvin M Scheinman
OBJECTIVES: This study sought to describe the clinical features and sites of successful ablation for incessant nodofascicular (NF) and nodoventricular (NV) tachycardias. BACKGROUND: Incessant supraventricular tachycardias have been associated with tachycardia-induced cardiomyopathies and have been previously attributed to permanent junctional reciprocating tachycardias, atrial tachycardias, and atrioventricular nodal re-entrant tachycardias. Incessant concealed NF and NV tachycardias have not been described previously...
December 26, 2017: JACC. Clinical Electrophysiology
https://www.readbyqxmd.com/read/29759706/the-human-left-atrial-venous-circulation-as-a-vascular-route-for-atrial-pharmacological-therapies-effects-of-ethanol-infusion
#5
Miguel Valderrábano, Percy Francisco Morales, Moisés Rodríguez-Mañero, Candela Lloves, Paul A Schurmann, Amish S Dave
OBJECTIVES: This study catalogued the human venous left atrium (LA) circulation system and the ablative effects of ethanol in different branches. BACKGROUND: Vascular routes to target the LA could have significant therapeutic potential. Beyond the vein of Marshall (VOM), the fluoroscopic LA venous anatomy has not been described. METHODS: Patients undergoing ethanol infusion in the VOM as adjunctive therapy to atrial fibrillation (AF) catheter ablation were included in this study...
September 2017: JACC. Clinical Electrophysiology
https://www.readbyqxmd.com/read/29759440/puncture-of-the-closed-coronary-sinus-ostium-in-a-patient-with-coronary-sinus-atresia
#6
Kazuaki Nakajima, Taishi Fujisawa, Shin Kashimura, Akira Kunitomi, Yoshinori Katsumata, Takahiko Nishiyama, Takehiro Kimura, Nobuhiro Nishiyama, Yoshiyasu Aizawa, Seiji Takatsuki
No abstract text is available yet for this article.
June 2017: JACC. Clinical Electrophysiology
https://www.readbyqxmd.com/read/29755634/mitroflow-aortic-bioprosthesis-failure-in-type-b-aortic-dissection-preventive-left-main-stenting-in-transapical-transcatheter-aortic-valve-implantation-strategy
#7
Giovanni Alfonso Chiariello, Emmanuel Villa, Antonio Messina, Stefano Marwan Mangini, Massimiliano Rozzi, Margherita Dalla Tomba, Ornella Leonzi, Giovanni Troise
Mitroflow aortic prosthesis dysfunction in case of complex vascular disease is considered a challenging scenario. Because of the high risk for surgical reoperation and the presence of chronic aortic dissection originated from a calcified Kommerel diverticulum, we considered to perform a transapical valve-in-valve transcatheter aortic valve implantation (TAVI) procedure. Myocardial ischemia is a dreadful complication reported in valve-in-valve TAVI procedures, mainly in patients with degenerated Mitroflow aortic bioprostheses...
April 2018: Cardiology Research
https://www.readbyqxmd.com/read/29755631/anomalous-coronary-artery-from-the-opposite-sinus-acaos-technical-challenges-during-percutaneous-coronary-intervention
#8
Santosh Kumar Sinha, Mahmodula Razi, Anupam Mahrotra, Puneet Aggarwal, Anupam Singh, Lokendra Rekwal, Sunil Tripathi, Nishant Kumar Abhishekh, Vinay Krishna
Anomalies of the coronary arteries are reported in 1-2% of patients among diagnostic angiogram. Ectopic origin of right coronary artery (RCA) from opposite sinus is one of the most common and they are mainly benign, but at times may be malignant. We report a case of a 69-year-old male who underwent early invasive percutaneous coronary intervention for non-ST-segment elevation myocardial infarction (NSTEMI) where RCA arising from left sinus at the root of left main artery was culprit and various technical challenges were encountered while intervening in form of cannulation to tracking of hardwares...
April 2018: Cardiology Research
https://www.readbyqxmd.com/read/29753180/a-work-flow-to-build-and-validate-patient-specific-left-atrium-electrophysiology-models-from-catheter-measurements
#9
Cesare Corrado, Steven Williams, Rashed Karim, Gernot Plank, Mark O'Neill, Steven Niederer
Biophysical models of the atrium provide a physically constrained framework for describing the current state of an atrium and allow predictions of how that atrium will respond to therapy. We propose a work flow to simulate patient specific electrophysiological heterogeneity from clinical data and validate the resulting biophysical models. In 7 patients, we recorded the atrial anatomy with an electroanatomical mapping system (St Jude Velocity); we then applied an S1-S2 electrical stimulation protocol from the coronary sinus (CS) and the high right atrium (HRA) whilst recording the activation patterns using a PentaRay catheter with 10 bipolar electrodes at 12 ± 2 sites across the atrium...
April 27, 2018: Medical Image Analysis
https://www.readbyqxmd.com/read/29749578/the-relationship-between-the-p-wave-and-local-atrial-electrogram-in-predicting-conduction-block-during-catheter-ablation-of-cavo-tricuspid-isthmus-dependent-atrial-flutter
#10
Miki Yokokawa, Mohamad C Sinno, Mohammed Saeed, Rakesh Latchamsetty, Hamid Ghanbari, Thomas Crawford, Krit Jongnarangsin, Ryan Cunnane, Frank Pelosi, Frank Bogun, Aman Chugh, Fred Morady, Hakan Oral
PURPOSE: The endpoint for radiofrequency catheter ablation (RFA) of cavo-tricuspid isthmus (CTI)-dependent atrial flutter (AFL) is complete conduction block along the CTI. The purpose of this study is to evaluate the utility of the temporal relationship between the P wave and the local atrial electrograms in determining complete CTI block. METHODS: RFA of CTI was performed in 125 patients (age 63 ± 11 years). During pacing from the coronary sinus (CS), the intervals from the peak of the P wave (Ppeak ) in lead V1 to the second component of the local atrial electrogram (A2 ) along the ablation line (Ppeak -A2 ) and from the end of the P wave (Pend ) to A2 (Pend -A2 ) were investigated before and after complete block in the first 100 patients (training set)...
May 11, 2018: Journal of Interventional Cardiac Electrophysiology: An International Journal of Arrhythmias and Pacing
https://www.readbyqxmd.com/read/29744224/right-coronary-artery-originating-from-the-left-do-not-miss-the-diagnosis
#11
Sedat Türkoğlu, Serkan Ünlü, Gülten Aydoğdu Taçoy, Murat Özdemir
Objective: Left circumflex (LCx) artery originating from the right coronary arterial (RCA) system has been reported as the most common form of anomalous origination of a coronary artery from the opposite sinus (ACAOS). However, some studies claim that RCA originating from the left coronary sinus (LCS) is the most frequent form. The aim of this study was to determine the most common type of ACAOS in a single center. Materials and Methods: The database of the catheterization laboratory was retrospectively searched...
2018: Cardiology Research and Practice
https://www.readbyqxmd.com/read/29740728/transvenous-cardiac-implantable-electronic-device-implantation-in-patients-with-persistent-left-superior-vena-cava-in-a-tertiary-center
#12
Xueying Chen, Ziqing Yu, Jin Bai, Wei Wang, Shengmei Qin, Jingfeng Wang, Zhe Sun, Fei Han, Yangang Su, Junbo Ge
PURPOSE: Persistent left superior vena cava (PLSVC) is rare and often asymptomatic, which might cause difficulties in the implantation of cardiac implantable electronic devices (CIEDs). The aim of this study was to determine the prevalence of PLSVC and to study the clinical characteristics and significance of PLSVC in patients with CIED implantation. METHODS: Thirty-three patients with PLSVC were collected from 7047 CIED recipients over recent 10 years in our center...
May 9, 2018: Journal of Interventional Cardiac Electrophysiology: An International Journal of Arrhythmias and Pacing
https://www.readbyqxmd.com/read/29717782/targeting-an-epicardial-endocardial-breakthrough-in-a-case-with-an-intractable-common-atrial-flutter-using-ultra-high-resolution-3-dimensional-mapping
#13
Satoshi Higuchi, Morio Shoda, Yuji Iwanami, Daigo Yagishita, Koichiro Ejima, Nobuhisa Hagiwara
The recent development of high-density high-spatial resolution 3-dimensional mapping has provided detailed information for understanding complicated atrial activation patterns at a level not previously possible. Using this technology, we report a case with recurrent common atrial flutter, demonstrating the presence of a bridging epicardial fiber that traveled across the previous cavotricuspid isthmus ablation lesion with apparent epicardial-endocardial breakthrough (EEB) sites located on both sides of the ablation line...
May 2, 2018: Pacing and Clinical Electrophysiology: PACE
https://www.readbyqxmd.com/read/29715168/persistent-left-superior-vena-cava-imaging-correlation
#14
Andrés M Pineda, Saqib A Gowani, Christos G Mihos, Nirat Beohar, Orlando Santana
In this heart failure patient, TEE images confirm the presence of the persistent left SVC with a dilated coronary sinus, severe mitral regurgitation, and aortic stenosis. Computed tomography reveals an isolated persistent left SVC and rules out anomalous pulmonary vein drainage or additional congenital disease.
May 2018: Journal of Invasive Cardiology
https://www.readbyqxmd.com/read/29706432/increased-risk-of-ischemic-stroke-associated-with-new-onset-atrial-fibrillation-complicating-acute-coronary-syndrome-a-systematic-review-and-meta-analysis
#15
Jiachen Luo, Hongqiang Li, Xiaoming Qin, Baoxin Liu, Jinlong Zhao, Guli Maihe, Zhiqiang Li, Yidong Wei
BACKGROUND: Atrial fibrillation has been established as a major risk factor of ischemic stroke, however, the influence of new-onset atrial fibrillation (NOAF) complicating acute coronary syndrome (ACS) on ischemic stroke remains controversial. This meta-analysis aimed to validate the association between NOAF complicating ACS and ischemic stroke. METHODS: We identified randomized controlled trials and cohort studies comparing the ischemic stroke risk between patients with NOAF and sinus rhythm after ACS by searching MEDLINE, EMBASE and Cochrane Central Register of Controlled Trials databases...
April 23, 2018: International Journal of Cardiology
https://www.readbyqxmd.com/read/29698794/prognostic-and-therapeutic-implications-of-vascular-disease-in-patients-with-atrial-fibrillation
#16
REVIEW
Farhan Shahid, Daniele Pastori, Francesco Violi, Gregory Y H Lip
Atrial fibrillation (AF) is associated with a 5-fold increase in the risk of ischemic stroke, and AF-related stroke patients have a higher mortality and greater morbidity than patients with non-AF related stroke. AF and vascular disease share a close relationship, with the concomitant presence of both disease states leading to a dramatic rise in future cardiovascular events. Indeed, the presence of peripheral artery disease independently predicts stroke in patients with AF. Myocardial infarction (MI) is another well-established risk factor for the development of AF; however, the role of pre-existing AF in MI is less well evidenced, with recent studies showing that this population more frequently develops coronary ischaemic events and has a higher risk of mortality than sinus rhythm patients...
April 23, 2018: Pharmacological Research: the Official Journal of the Italian Pharmacological Society
https://www.readbyqxmd.com/read/29697759/novel-concepts-and-approaches-in-ablation-of-atrial-fibrillation-the-role-of-non-pulmonary-vein-triggers
#17
Carola Gianni, Sanghamitra Mohanty, Chintan Trivedi, Luigi Di Biase, Andrea Natale
Ablation of non-pulmonary vein (PV) triggers is an important step to improve outcomes in atrial fibrillation ablation. Non-pulmonary vein triggers typically originates from predictable sites (such as the left atrial posterior wall, superior vena cava, coronary sinus, interatrial septum, and crest terminalis), and these areas can be ablated either empirically or after observing significant ectopy (with or without drug challenge). In this review, we will focus on ablation of non-PV triggers, summarizing the existing evidence and our current approach for their mapping and ablation...
April 25, 2018: Europace: European Pacing, Arrhythmias, and Cardiac Electrophysiology
https://www.readbyqxmd.com/read/29691271/unusual-congenital-coronary-artery-anomaly-in-a-young-adult-presenting-as-sudden-cardiac-arrest
#18
Manuel Cortes, Carlos A Roldan, Stacey Clegg
A previously asymptomatic young female with no previous medical or cardiac history collapsed during indoor exercise. A portable automatic external defibrillator showed a shockable rhythm. She received multiple electrical shocks with return to normal sinus rhythm without ischaemic ECG changes. Her troponin level was mildly elevated. A transthoracic echocardiogram revealed moderately reduced left ventricular ejection fraction with global hypokinesis. During emergent coronary angiography, the left main coronary artery could not be found...
April 24, 2018: BMJ Case Reports
https://www.readbyqxmd.com/read/29688296/successful-catheter-ablation-of-a-focal-atrial-tachycardia-originating-from-the-coronary-sinus-ostium-in-a-patient-with-a-history-of-fontan-conversion-and-dextrocardia
#19
Takumi Yamada, Yung R Lau
No abstract text is available yet for this article.
April 20, 2018: Europace: European Pacing, Arrhythmias, and Cardiac Electrophysiology
https://www.readbyqxmd.com/read/29688178/coronary-sinus-reducer-implantation-improves-symptoms-ischemia-and-physical-capacity-in-patients-with-refractory-angina-unsuitable-for-myocardial-revascularization-a-single-center-experience
#20
Maayan Konigstein, Samuel Bazan, Miri Revivo, Shmuel Banai
AIMS: To evaluate the clinical efficacy of the Coronary Sinus Reducer implantation in alleviating angina symptoms and improving objective ischemia parameters and indices of physical capacity Methods and results: Patient with refractory angina (CCS class 3-4) were treated with the Reducer. Baseline, and follow-up evaluation consisted of clinical assessment including completion of Seattle angina Questionnaire (SAQ) and CCS class evaluation, and objective assessment by treadmill exercise test, Dobutamine echocardiography and 6-minute walk test (6MWT)...
April 24, 2018: EuroIntervention
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