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Coronary Spasm

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https://www.readbyqxmd.com/read/28526473/coronary-flow-reserve-is-reduced-in-sarcoidosis
#1
Seref Kul, Gonul Aciksari Kutlu, Tolga Sinan Guvenc, Murat Kavas, Kenan Demircioglu, Yusuf Yilmaz, Halil Ibrahim Yakar, Asiye Kanbay, Sibel Boga, Mustafa Caliskan
BACKGROUND AND AIMS: Sarcoidosis is a multisystem disease with frequent cardiac involvement, albeit manifest cardiac disease is rare. Though epicardial coronary arteries are not frequently involved, microvascular disease is rather common in both symptomatic and asymptomatic patients. The mechanism of microvascular involvement has not been elaborated yet. The aim of this study is to investigate coronary flow velocity reserve (CFVR) using transthoracic echocardiography in patients with sarcoidosis but without known atherosclerotic coronary artery disease or risk factors for atherosclerosis...
May 4, 2017: Atherosclerosis
https://www.readbyqxmd.com/read/28499220/effects-of-preadmission-beta-blockers-on-neurogenic-stunned-myocardium-after-aneurysmal-subarachnoid-hemorrhage-a-meta-analysis
#2
Hai Luo, Wei-Xin Song, Jin-Wen Jiang, Jian-Lan Zhao, Wei-Lin Rong, Mei-Hua Li
OBJECTIVE: Spontaneous subarachnoid hemorrhage is mostly caused by the rupture of an aneurysm. Neurogenic stunned myocardium (NSM) is one of the most frequent complications caused by aneurysmal subarachnoid hemorrhage (aSAH). The possible pathogenesis of NSM may be that the catecholamine peak resulting from aSAH leads to subendocardial ischemia or coronary artery spasm. We designed this meta-analysis to find out whether beta-blockers (BB) can significantly reduce the incidence of NSM and improve the outcomes of aSAH...
May 1, 2017: Clinical Neurology and Neurosurgery
https://www.readbyqxmd.com/read/28491725/recurrent-and-late-onset-coronary-spasms-after-cryoballoon-ablation-procedure-in-a-patient-with-atrial-fibrillation
#3
Tomonori Watanabe, Hitoshi Hachiya, Shinsuke Miyazaki, Hiroaki Nakamura, Hiroshi Taniguchi, Yoshito Iesaka
No abstract text is available yet for this article.
September 2016: HeartRhythm Case Reports
https://www.readbyqxmd.com/read/28476516/effects-of-neuropeptide-y-on-coronary-artery-vasomotion-in-patients-with-microvascular-angina
#4
Giuseppe M C Rosano, Dimitris Tousoulis, Eugene McFadden, John Clarke, Graham J Davies, Juan Carlos Kaski
BACKGROUND: Patients with microvascular angina (exertional angina, positive exercise tests and normal coronary arteriograms) usually have a reduced coronary blood flow reserve. Neuropeptide Y (NPY) is a potent endogenous vasoconstrictor involved in modulation of coronary vasomotor tone and may play a role in microvascular angina. METHODS: We compared the effects of NPY (0.2-1.0pmol/kg, intracoronary) on the vasomotor response of proximal and distal segments of the coronary arteries in 7 patients with microvascular angina, 9 with chronic stable angina, and 9 control individuals...
March 16, 2017: International Journal of Cardiology
https://www.readbyqxmd.com/read/28473918/vasospastic-myocardial-infarction-caused-by-a-slimming-agent-do-not-forget-non-prescription-drugs
#5
Mohammed Omer Anwar, Neil Bodagh, Mohammed Husnain Iqbal, Adam Timmis
A 41-year-old woman presented with central chest discomfort. She had been previously well, was an ex-smoker and reported no regular medication. The ECG developed T-wave changes inferiorly and anterolaterally and troponin I concentrations were elevated confirming non-ST elevation myocardial infarction. Cardiac catheterization showed severe spasm of the right and left anterior descending coronary arteries which resolved with intracoronary nitrates. She later volunteered that prior to presentation she had been taking non-prescription Acti-Phen a slimming agent containing phentermine...
April 2017: Oxford Medical Case Reports
https://www.readbyqxmd.com/read/28461799/phasic-compression-of-left-circumflex-coronary-artery-during-atrial-systole
#6
Edward Samuel Roberto, Ajay Agarwal
Phasic coronary artery compression is typically associated with spasm or myocardial bridging. Compression caused by acquired anatomic changes to the surrounding heart chambers has been reported only infrequently. We present a possibly unique case of phasic compression of the proximal left circumflex coronary artery during atrial contraction in association with a dilated left atrium. A 55-year-old man with multiple cardiac risk factors presented with worsening exertional dyspnea. An electrocardiogram and echocardiogram revealed marked left atrial dilation and a left ventricular ejection fraction of 0...
April 2017: Texas Heart Institute Journal
https://www.readbyqxmd.com/read/28457806/detection-of-spontaneous-coronary-artery-spasm-with-optical-coherence-tomography-in-a-patient-with-acute-coronary-syndrome
#7
HanyTawfik Fathelbab, Santiago Jesús Camacho Freire, Javier León Jiménez, Rosa Cardenal Piris, Antonio Enrique Gómez Menchero, Jessica Roa Garrido, José Francisco Díaz Fernández
We present 2 illustrative cases of acute coronary syndrome and spontaneous coronary artery spasm evaluated by optical coherence tomography. Different spasm patterns were showed by optical coherence tomography (OCT), according to whether there were underlying atherosclerotic plaques or not.
February 20, 2017: Cardiovascular Revascularization Medicine: Including Molecular Interventions
https://www.readbyqxmd.com/read/28457560/three-year-follow-up-of-patients-with-acetylcholine-induced-coronary-artery-spasm-combined-with-insignificant-coronary-stenosis
#8
Byoung Geol Choi, Sung Hun Park, Seung-Woon Rha, Jihun Ahn, Se Yeon Choi, Jae Kyeong Byun, Hu Li, Ahmed Mashaly, Min Suk Shim, Jun Hyuk Kang, Woohyeun Kim, Jah Yeon Choi, Eun Jin Park, Sunki Lee, Jin Oh Na, Cheol Ung Choi, Hong Euy Lim, Eung Ju Kim, Chang Gyu Park, Hong Seog Seo, Dong Joo Oh
BACKGROUND: Coronary artery spasm (CAS) and significant coronary stenosis are known to be major causes of myocardial ischemia. However, their association and the impact of insignificant coronary stenosis (ICS) on long-term clinical outcomes of CAS patients are largely unknown. METHODS: A total of 2797 patients without significant coronary artery disease (CAD) who underwent the acetylcholine (ACH) provocation test between November 2004 and October 2010 were enrolled...
March 18, 2017: International Journal of Cardiology
https://www.readbyqxmd.com/read/28409033/aborted-sudden-cardiac-death-in-a-female-patient-presenting-with-takotsubo-like-cardiomyopathy-due-to-epicardial-coronary-vasospasm
#9
Sorin Giusca, Tom Eisele, Peter Nunninger, Benedikt Münz, Grigorios Korosoglou
Takotsubo cardiomyopathy is characterized by apical ballooning of the left ventricle (LV) in the absence of relevant coronary artery stenosis, which typically occurs in elderly women after emotional stress. Catecholamine cardiotoxicity, metabolic disturbance, and coronary microvascular impairment have previously been proposed as underlying pathophysiologic mechanisms of takotsubo cardiomyopathy, whereas myocardial stunning resulting from epicardial coronary artery vasospasm is not generally accepted as a cause of takotsubo cardiomyopathy...
2017: Case Reports in Cardiology
https://www.readbyqxmd.com/read/28400926/early-stent-thrombosis-secondary-to-food-allergic-reaction-kounis-syndrome-following-rice-pudding-ingestion
#10
Georgios Tzanis, Maria Bonou, Nikolaos Mikos, Smaragda Biliou, Ioanna Koniari, Nicholas G Kounis, John Barbetseas
Kounis syndrome is the concurrence of coronary spasm, acute myocardial infarction or stent thrombosis, with allergic reactions in the setting of mast-cell and platelet activation. In this report Kounis syndrome manifesting as stent thrombosis with left ventricular thrombus formation was triggered by a food-induced allergic reaction. The allergic reaction to food was confirmed by oral rice pudding ingredients challenge test while skin tests were inconclusive. To our knowledge, this is first report of early stent thrombosis secondary to food allergic reaction in a 70-year-old man patient who was found to have left ventricular thrombus and undiagnosed hypertrophic cardiomyopathy...
March 26, 2017: World Journal of Cardiology
https://www.readbyqxmd.com/read/28387796/long-term-prognosis-of-patients-with-life-threatening-ventricular-arrhythmias-induced-by-coronary-artery-spasm
#11
Moisés Rodríguez-Mañero, Teresa Oloriz, Jean-Benoit le Polain de Waroux, Haran Burri, Bahij Kreidieh, Carlos de Asmundis, Miguel A Arias, Elena Arbelo, Brais Díaz Fernández, Juan Fernández-Armenta, Nuria Basterra, María Teresa Izquierdo, Ernesto Díaz-Infante, Gabriel Ballesteros, Andrés Carrillo López, Ignacio García-Bolao, Juan Benezet-Mazuecos, Victor Expósito-García, Larraitz-Gaztañaga, Jose Luis Martínez-Sande, Javier García-Seara, Jose Ramón González-Juanatey, Rafael Peinado
Aims: Coronary artery spasm (CAS) is associated with ventricular arrhythmias (VA). Much controversy remains regarding the best therapeutic interventions for this specific patient subset. We aimed to evaluate the clinical outcomes of patients with a history of life-threatening VA due to CAS with various medical interventions, as well as the need for ICD placement in the setting of optimal medical therapy. Methods and results: A multicentre European retrospective survey of patients with VA in the setting of CAS was aggregated and relevant clinical and demographic data was analysed...
April 6, 2017: Europace: European Pacing, Arrhythmias, and Cardiac Electrophysiology
https://www.readbyqxmd.com/read/28367849/acute-heart-failure-triggered-by-coronary-spasm-with-transient-left-ventricular-dysfunction
#12
Yusuke Adachi, Kenichi Sakakura, Tatsuro Ibe, Nanae Yoshida, Hiroshi Wada, Hideo Fujita, Shin-Ichi Momomura
Coronary spasm is abnormal contraction of an epicardial coronary artery resulting in myocardial ischemia. Coronary spasm induces not only depressed myocardial contractility, but also incomplete myocardial relaxation, which leads to elevated ventricular filling pressure. We herein report the case of a 55-year-old woman who had repeated acute heart failure caused by coronary spasm. Acetylcholine provocation test with simultaneous right heart catheterization was useful for the diagnosis of elevated ventricular filling pressure as well as coronary artery spasm...
April 6, 2017: International Heart Journal
https://www.readbyqxmd.com/read/28353311/blockade-of-beta2-adrenoceptor-rather-than-beta1-adrenoceptor-deteriorates-cardiac-anaphylaxis-in-isolated-blood-perfused-rat-hearts
#13
Yuhichi Kuda, Toshishige Shibamoto, Wei Yang, Tao Zhang, Mamoru Tanida, Yasutaka Kurata
BACKGROUND: Cardiac anaphylaxis is one of the features of anaphylactic hypotension. Patients treated with propranolol, a nonselective b-adrenoceptor (AR) antagonist, develop severe anaphylaxis, but the mechanism remains unknown. Under examination were the effects of b₁- and b₂-AR antagonist on anaphylaxis-induced coronary vasoconstriction and cardiac dysfunction in isolated blood-perfused rat hearts. METHODS: Isolated hearts from ovalbumin-sensitized Wistar rats were subjected to coronary perfusion with blood at a constant pressure and measurements were made of coronary blood flow and left ventricular (LV) pressure...
March 29, 2017: Cardiology Journal
https://www.readbyqxmd.com/read/28345355/coronary-spasm-secondary-to-cefuroxime-injection-complicated-with-cardiogenic-shock-a-manifestation-of-kounis-syndrome-case-report-and-literature-review
#14
Andreas Mitsis, Evi Christodoulou, Panayiota Georgiou
Kounis syndrome is defined as the coincidental occurrence of an acute coronary syndrome with hypersensitivity reactions following an allergic event. The three reported variants of Kounis syndrome are vasospastic allergic angina, allergic myocardial infarction and stent thrombosis with occluding thrombus. The syndrome is caused by various inflammatory mediators. The pathophysiological characteristics of Kounis syndrome involve coronary artery spasm and/or atheromatous plaque erosion or rupture during an allergic reaction...
March 1, 2017: European Heart Journal. Acute Cardiovascular Care
https://www.readbyqxmd.com/read/28331112/differential-incidence-and-morphology-of-spasm-according-to-coronary-arterial-location-by-intracoronary-ergonovine-spasm-provocation-testing
#15
Shozo Sueda, Hiroaki Kohno
BACKGROUND: We reported less provoked spasm in the left circumflex artery (LCX) by acetylcholine testing compared with the left anterior descending artery (LAD) and right coronary artery (RCA), so we investigated the clinical characteristics of provoked spasm in the LCX by ergonovine (ER) testing.Methods and Results:We retrospectively analyzed 1,185 consecutive cases of intracoronary ER testing during 25 years. Maximal ER dose was 64 μg into the left coronary artery (LCA) and 40 μg into the RCA...
March 23, 2017: Circulation Journal: Official Journal of the Japanese Circulation Society
https://www.readbyqxmd.com/read/28319321/unrecognized-coronary-vasospasm-in-patients-referred-for-percutaneous-coronary-intervention-intracoronary-nitroglycerin-the-forgotten-stepchild-of-cardiovascular-guidelines
#16
Alec Vishnevsky, Howard M Julien, David L Fischman, Paul Walinsky, J David Ogilby, Nicholas J Ruggiero, Babu Jasti, Michael P Savage
OBJECTIVE: The goal of this study was to demonstrate the importance of intracoronary nitroglycerin (IC NTG) administration during diagnostic coronary angiography and prior to percutaneous coronary intervention (PCI). BACKGROUND: PCI has been a mainstay treatment for patients with symptomatic coronary artery disease. While current guidelines emphasize the importance of periprocedural antithrombotic medications, they fail to mention the use of nitroglycerin prior to PCI...
March 20, 2017: Catheterization and Cardiovascular Interventions
https://www.readbyqxmd.com/read/28303667/exercise-induced-saphenous-vein-graft-spasm-prevented-by-stenting
#17
William G Boliek, Dean J Kereiakes, Atul Chugh
Recurrence of anginal symptoms following coronary artery bypass surgery is usually secondary to graft closure or progression of native vessel disease. The present case demonstrates severe exercise-induced saphenous vein graft (SVG) spasm associated with transmural ischemia refractory to maximal vasodilator therapy. Symptoms resolved and exercise electrocardiography normalized following stenting of SVG regions demonstrating spasm. © 2017 Wiley Periodicals, Inc.
March 17, 2017: Catheterization and Cardiovascular Interventions
https://www.readbyqxmd.com/read/28283339/prinzmetal-angina-coronary-vasospasm-associated-with-5-fluorouracil-chemotherapy
#18
Maxim Ben-Yakov, Amal Mattu, William J Brady, Sarah B Dubbs
Several chemotherapeutic agents are known to be cardiotoxic. One of them, 5-fluorouracil (5-FU), has been associated with coronary ischemia and reversible vasospasm. In this report, we describe a 54-year-old man with rectal cancer who developed chest pain during 5-FU infusion. His initial electrocardiogram (ECG), obtained while he was experiencing chest pain, showed hyperacute T waves in the anterolateral leads. Those waves disappeared along with the chest pain after administration of sublingual nitroglycerine...
March 1, 2017: American Journal of Emergency Medicine
https://www.readbyqxmd.com/read/28273995/prinzmetals-angina-masquerading-as-acute-pericarditis
#19
Ashwal Adamane Jayaram, Mugula Sudhakar Rao, R Padmakumar, Uk Abdul Razak
Coronary artery spasm is an intense vasoconstriction of the coronary arteries and may be responsible for the myocardial ischemia, myocardial infarction as well as sudden deaths. Coronary angiography is generally needed to identify the cause. Coronary artery spasm is a multifactorial disease with underlying mechanism still poorly understood. Here, we present case of a 48-year-old male with no significant past history who presented with acute episodic onset chest pain. Clinical, Electrocardiography (ECG) and echocardiographic findings suggested pericarditis but a diagnostic coronary angiography revealed significant coronary vasospasm...
January 2017: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/28268085/ultra-long-acting-calcium-channel-blockers-may-decrease-accuracy-of-the-acetylcholine-provocation-test
#20
Manabu Kurabayashi, Mitsutoshi Asano, Tsukasa Shimura, Hidetoshi Suzuki, Hideshi Aoyagi, Yasuteru Yamauchi, Kaoru Okishige, Takashi Ashikaga, Mitsuaki Isobe
BACKGROUND: When drug-induced coronary spasm provocation tests are performed, a washout period of >48h for calcium channel blockers (CCBs) is uniformly recommended. However, each CCB has a distinct half-life, and little is known about the influence of prior oral administration of CCBs on acetylcholine provocation test to evaluate coronary vasomotor reaction. METHODS AND RESULTS: We examined 245 consecutive patients with suspected vasospastic angina who had undergone acetylcholine provocation test...
February 28, 2017: International Journal of Cardiology
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