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Myocardial bridging

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https://www.readbyqxmd.com/read/29783234/-myocardial-bridge-as-the-only-cause-of-acute-coronary-syndrome-among-the-young-patients
#1
Liudmila O Miakinkova, Yurii V Teslenko, Irina V Tsyhanenko
OBJECTIVE: Introduction: Myocardial bridge is an inborn anomaly of coronary artery development, when a part of it is submerged in a myocard, which is pressing the coronary artery to a systola and restrains coronary blood circulation. Generally this feature of coronary blood circulation does not cause any clinical symptoms because the 85% of coronary blood stream of the left ventricle is provided by diastolic filling. Hemodynamic changes in atherosclerosis, tahicardie, hypertrophie of myocard are leading to the manifestation of clinical symptoms of ischemia...
2018: Wiadomości Lekarskie: Organ Polskiego Towarzystwa Lekarskiego
https://www.readbyqxmd.com/read/29780073/early-lvad-implantation-in-a-patient-with-left-ventricular-failure-after-aortic-dissection-with-left-main-stem-involvement
#2
Hazem El Beyrouti, Angela Kornberger, Nancy Halloum, Andres Beiras-Fernandez, Christian-Friedrich Vahl
BACKGROUND: Coronary involvement in aortic dissection heralds a poor outcome. Involvement of the left main stem may lead to left ventricular (LV) failure requiring mechanical circulatory support. CASE REPORT: A staged approach was applied in a 24-year-old female who suffered extensive infarction due to aortic dissection with left main stem involvement. After replacement of the ascending aorta and grafting of the left internal thoracic artery to the left anterior descending artery following a failed attempt at reconstruction of the left coronary ostium, she failed to wean from cardiopulmonary bypass (CPB) and underwent implantation of an extracorporeal life support (ECLS) system as a bridge to decision...
May 21, 2018: Annals of Thoracic and Cardiovascular Surgery
https://www.readbyqxmd.com/read/29774732/management-of-peridural-catheter-removal-during-dual-anti-platelet-therapy-after-postoperative-myocardial-infarction-and-drug-eluting-stent-implantation-applying-the-bridging-therapy-concept
#3
Tindaro Mogavero, Rocco Pace, Luigi Vetrugno
No abstract text is available yet for this article.
May 15, 2018: Minerva Anestesiologica
https://www.readbyqxmd.com/read/29764528/symptomatic-myocardial-bridging-a-frequently-occurring-coronary-variation-can-cause-severe-myocardial-ischaemia-in-affected-children-with-underlying-cardiac-conditions
#4
Alexandra Kiess, Marcel Vollroth, Farhad Bakhtiary, Hiroshi Seki, Martin Kostelka, Milan Djukic, Ingo Daehnert, Robert Wagner
Myocardial bridging is a congenital coronary artery anomaly in which the coronary artery has a partly "tunnelled" intramyocardial course. This tunnelling leads to compression of the affected vessel segment during ventricular systole. It is considered to be a benign variation of the norm in about 25% of the population caused by an aberrancy of embryologic coronary development. The bridging is also thought to cause severe cardiac conditions in a few of those affected. The series of six young patients presented here is the largest series so far to report on symptomatic myocardial bridging in children with different underlying heart diseases...
May 16, 2018: Cardiology in the Young
https://www.readbyqxmd.com/read/29757498/clinical-determinants-of-successful-weaning-from-extracorporeal-membrane-oxygenation-in-patients-with-fulminant-myocarditis
#5
Manabu Matsumoto, Yasuhide Asaumi, Yuichi Nakamura, Takeshi Nakatani, Toshiyuki Nagai, Tomoaki Kanaya, Shoji Kawakami, Satoshi Honda, Yu Kataoka, Seiko Nakajima, Osamu Seguchi, Masanobu Yanase, Kunihiro Nishimura, Yoshihiro Miyamoto, Kengo Kusano, Toshihisa Anzai, Teruo Noguchi, Tomoyuki Fujita, Junjiro Kobayashi, Hatsue Ishibashi-Ueda, Hiroaki Shimokawa, Satoshi Yasuda
AIMS: Patients with fulminant myocarditis (FM) often present with cardiogenic shock and require mechanical circulatory support, including extracorporeal membrane oxygenation (ECMO) and ventricular assist device (VAD) implantation. This study sought to clarify the determinants of successful weaning from ECMO in FM patients. METHODS AND RESULTS: We studied 37 consecutive FM patients supported by ECMO as the initial form of mechanical circulatory support between January 1995 and December 2014 in our hospital...
May 14, 2018: ESC Heart Failure
https://www.readbyqxmd.com/read/29752256/promoting-integration-of-pharmacy-expertise-in-care-of-hospitalized-patients-with-acute-myocardial-infarction
#6
Leslie A Curry, Marie A Brault, Emily Cherlin, Marie Smith
PURPOSE: The substantive integration of pharmacists into quality-improvement initiatives aimed at improving the care of hospitalized patients with acute myocardial infarction (AMI) is described. METHODS: A 2-year, mixed-methods, interventional study was conducted in 10 U.S. hospitals, directed at promoting the use of evidence-based strategies and fostering domains of hospital organizational culture associated with lower risk-standardized mortality rates (RSMRs) for patients with AMI...
May 11, 2018: American Journal of Health-system Pharmacy: AJHP
https://www.readbyqxmd.com/read/29747722/scar-size-and-other-parameters-for-tracking-left-ventricular-dysfunction-after-induction-of-myocardial-infarcts-in-sheep-ovis-aries
#7
Hylton P Gordon, Michael G Katz, Anthony S Fargnoli, Virginia L Gillespie, Roger J Hajjar, Charles R Bridges
In humans, cardiovascular disease (CVD) is the most frequent cause of death worldwide. Myocardial infarction (MI)is a leading cause of heart failure due to myocardial impairment, yet the progression of the resultant dysfunction is often undetected after incidental or induced myocardial infarction. In this study we tracked the progression of left-sided heart failure in 6-mo-old male castrated sheep in which we created 2 models of myocardial infarction, small and large. Myocardial infarction was induced through ligation of a single branch (obtuse marginal [OM] 1) of the left circumflex coronary artery to create small (mild) infarcts and of 2 branches (OM1 and OM2) for large (severe) infarcts...
May 10, 2018: Comparative Medicine
https://www.readbyqxmd.com/read/29747319/-current-understanding-of-myocardial-bridge-a-few-new-issues
#8
H B Yan, C Liu, D Y Hu
No abstract text is available yet for this article.
April 24, 2018: Zhonghua Xin Xue Guan Bing za Zhi
https://www.readbyqxmd.com/read/29724303/-correlation-of-coronary-artery-tortuosity-caused-by-myocardial-bridge-with-coronary-atherosclerosis
#9
Ji Wei An, Xin Bin Zhao, He Liang Zhao, Wei Zhou
Objective To evaluate the potential correlation between coronary artery tortuosity caused by myocardial bridge and coronary atherosclerosis. Methods The data of 88 patients with suspected coronary heart disease in the Affiliated Hospital of North China University of Science and Technology during the period from March 2015 to June 2016 were retrospectively analyzed.Coronary artery tortuosity caused by myocardial bridge was diagnozed by computed tomography coronary angiography.Meanwhile,the contemporary data of patients diagnosed with coronary artery tortuosity without myocardial bridge were selected as the control group...
April 28, 2018: Zhongguo Yi Xue Ke Xue Yuan Xue Bao. Acta Academiae Medicinae Sinicae
https://www.readbyqxmd.com/read/29686556/usefulness-of-a-left-ventricular-assist-device-in-patients-with-left-ventricular-noncompaction
#10
Helen Hashemi, Fayez S Raza, David M Harmon, Tony Alias, Joost Felius, Melody J Sherwood
Left ventricular noncompaction (LVNC) is a multifactorial structural abnormality of the myocardial wall characterized by prominent trabeculae and deep trabecular recesses. LVNC may present as a congenital or acquired defect characterized by 2 distinct tissue layers: a spongy, noncompacted inner myocardium and a thin, compacted outer myocardium. Patients with LVNC are prone to thromboembolic events, either due to deep trabeculations in the noncompacted myocardium or due to arrhythmias accompanying the defect...
January 2018: Proceedings of the Baylor University Medical Center
https://www.readbyqxmd.com/read/29681571/the-outcome-of-percutaneous-coronary-intervention-for-significant-atherosclerotic-lesions-in-segment-proximal-to-myocardial-bridge-at-left-anterior-descending-coronary-artery
#11
Zhang Hao, Jia Xinwei, Zakarya Ahmed, Pan Huanjun, Wang Zhanqi, Wang Yanfei, Chen Chunhong, Zhang Chan, Fu Liqiang
This study aimed to evaluate the efficacy of percutaneous coronary intervention (PCI) for significant atherosclerosis lesions proximal to myocardial bridge (MB) at left anterior descending coronary artery (LAD).A total of 330 consecutive patients with LAD significant stenosis, diagnosed as acute coronary syndrome (ACS), were included. Based on whether combined with MB, the patients were divided into the MB group (MB, n = 48) and non-MB group (NMB, n = 282). Drug eluting stents (DES) were successfully implanted in the stenostic segments prior to MB...
April 20, 2018: International Heart Journal
https://www.readbyqxmd.com/read/29674337/analysis-of-right-ventricular-myocardial-stiffness-and-relaxation-components-in-children-and-adolescents-with-pulmonary-arterial-hypertension
#12
Yasunobu Hayabuchi, Akemi Ono, Yukako Homma, Shoji Kagami
BACKGROUND: The rate of left ventricular pressure decrease during isovolumic relaxation is traditionally assessed algebraically via 2 empirical indices: the monoexponential and logistic time constants (τE and τL ). Since the pattern of right ventricular (RV) pressure decrease is quite different from that of the left ventricular, we hypothesized that novel kinematic model parameters are more appropriate and useful to evaluate RV diastolic dysfunction. METHODS AND RESULTS: Eight patients with pulmonary arterial hypertension (age 12...
April 19, 2018: Journal of the American Heart Association
https://www.readbyqxmd.com/read/29667032/contrast-opacification-difference-of-mural-artery-and-the-transluminal-attenuation-gradient-on-coronary-computed-tomography-angiography-for-detection-of-systolic-compression-of-myocardial-bridge
#13
Yuanliang Xie, Xiang Wang, Wei Xie, Faxiang Chen, Shubo Gao, Yikai Xu
PURPOSE: Myocardial bridges (MB) have traditionally been considered a benign condition, but recent studies have demonstrated that the clinical complications can be dangerous. The transluminal attenuation gradient (TAG) obtained from coronary computed tomography angiography (CCTA) data (Retrospective ECG-triggered method) has been used in detecting significant stenosis in coronary artery caused by atherosclerosis. Contrast opacification difference (COD) was the parameters calculated as the change between attenuation of mural artery and the median attenuation of presumptive vessel segment; it was evaluated along with TAGstandardized (TAGs) and MB length for predicting MB with systolic compression (MB-SC) in patients diagnosed as MB in left anterior descending coronary artery (LAD) by CCTA or invasive coronary angiograph (ICA)...
April 17, 2018: Surgical and Radiologic Anatomy: SRA
https://www.readbyqxmd.com/read/29652747/the-incremental-clinical-value-of-cardiac-hybrid-spect-cta-imaging-in-coronary-artery-disease
#14
Lin Qiu, Hui Tan, Dengfeng Cheng, Hongcheng Shi
Coronary artery disease (CAD) is a major cause of death worldwide. It is significantly important to assess the coronary lesion and its pathophysiological relevance comprehensively. Coronary computed tomography angiography (CTA) or myocardial perfusion imaging alone suffers from some limitations in the evaluation of CAD. Through the integration and spatial colocalization of complementary morphological and functional information, the results of published hybrid single-photon emission computed tomography (SPECT)/CTA studies in patients with CAD are promising for detecting functionally relevant coronary artery lesion and evaluating the relationship between diseased coronary artery, coronary artery anomaly, myocardial bridging, or coronary calcification and myocardial ischemia...
April 12, 2018: Nuclear Medicine Communications
https://www.readbyqxmd.com/read/29628145/percutaneous-biventricular-impella-support-in-therapy-refractory-cardiogenic-shock
#15
Cheng-Ying Chiu, Robert Hättasch, Damaris Praeger, Fabian Knebel, Karl Stangl, Ivan Diaz Ramirez, Henryk Dreger
INTRODUCTION: Percutaneous mechanical circulatory support systems have increasingly been adopted as a bail out strategy in patients with cardiogenic shock. Since studies showed mostly mixed results, however, the use of support systems remains a case by case decision. CASE: Here, we report on a case of therapy-refractory cardiogenic shock due to acute myocardial infarction treated with percutaneous right and left ventricular assist devices (Impella RP and CP). CONCLUSION: Due to myocardial stunning, even patients with fulminant cardiogenic shock have the potential for full recovery...
April 5, 2018: Heart & Lung: the Journal of Critical Care
https://www.readbyqxmd.com/read/29622983/myocardial-bridging-as-one-of-the-causes-of-atypical-chest-pain-in-young-women
#16
M Jukić, L Pavić, I Bitunjac, T Jukić, M Milošević, D Lovrić, M Lovrić Benčić
Introduction: Myocardial bridging is congenital anomaly which usually has benign prognosis but there are also reports suggesting that it can be associated with ischemic clinical syndromes presenting with chest pain. Coronary computed tomography angiography is a well-established method for detecting myocardial bridging. However, clinical significance of this anomaly still remains unclear. Methods: We studied 977 patients who presented with recurrent typical or atypical chest pain in outpatient clinic...
December 2017: The Egyptian heart journal: (EHJ): official bulletin of the Egyptian Society of Cardiology
https://www.readbyqxmd.com/read/29622562/settlement-of-stenotic-site-and-enhancement-of-risk-factor-load-for-atherosclerosis-in-left-anterior-descending-coronary-artery-by-myocardial-bridge
#17
Yuri Akishima-Fukasawa, Yukio Ishikawa, Tetuo Mikami, Yoshikiyo Akasaka, Toshiharu Ishii
OBJECTIVE: The aim of this study was to investigate the influence of a myocardial bridge (MB) on atherosclerosis development in the left anterior descending artery of the normal heart and the importance of traditional risk factors (RFs). An additional objective was to determine the correlation between intimal thickening and luminal narrowing. APPROACH AND RESULTS: The left anterior descending artery from 150 autopsied hearts was treated with formalin perfusion fixation, and each left anterior descending artery was serially cross-sectioned...
April 5, 2018: Arteriosclerosis, Thrombosis, and Vascular Biology
https://www.readbyqxmd.com/read/29551536/surgical-intervention-for-myocardial-bridges-to-do-or-not-do-to-that-is-the-question
#18
EDITORIAL
Paul J Chai
No abstract text is available yet for this article.
February 17, 2018: Journal of Thoracic and Cardiovascular Surgery
https://www.readbyqxmd.com/read/29549728/cardio-supportive-devices-vrd-dcc-device-and-patches-for-advanced-heart-failure-a-review-summary-of-state-of-the-art-and-future-directions
#19
REVIEW
Muhammad Naveed, Lei Han, Ghulam Jilany Khan, Sufia Yasmeen, Reyaj Mikrani, Muhammad Abbas, Li Cunyu, Zhou Xiaohui
Congestive heart failure (CHF) is a complicated pathophysiological syndrome, leading cause of hospitalization as well as mortalities in developed countries wherein an irregular function of the heart leads to the insufficient blood supply to the body organs. It is an accumulative slackening of various complications including myocardial infarction (MI), coronary heart disease (CAD), hypertension, valvular heart disease (VHD) and cardiomyopathy; its hallmarks include hypertrophy, increased interstitial fibrosis and loss of myocytes...
June 2018: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/29538018/combining-stem-cell-therapy-for-advanced-heart-failure-and-ventricular-assist-devices-a-review
#20
Heidi J Reich, Lawrence S C Czer, Danny Ramzy, Francisco Arabia, Jaime Moriguchi, Deborah D Ascheim, Timothy D Henry
The use of stem cell therapy in combination with a left ventricular assist device (LVAD) for patients with advanced heart failure (HF) is an attractive concept with the potential to alter the natural history of HF. Cell therapy trials for HF have demonstrated excellent safety and encouraging results, but current rates of myocardial recovery after LVAD implantation are limited. Early trials combining these 2 therapies to increase the likelihood of recovery and to potentially obviate the need for subsequent transplantation appear promising...
March 13, 2018: ASAIO Journal: a Peer-reviewed Journal of the American Society for Artificial Internal Organs
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