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coronary artery spasm

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https://www.readbyqxmd.com/read/28087177/lymphocytic-myocarditis-occurs-with-myocardial-infarction-and-coincides-with-increased-inflammation-hemorrhage-and-instability-in-coronary-artery-atherosclerotic-plaques
#1
Linde Woudstra, P Stefan Biesbroek, Reindert W Emmens, Stephane Heymans, Lynda J Juffermans, Albert C van Rossum, Hans W M Niessen, Paul A J Krijnen
OBJECTIVE: Although lymphocytic myocarditis (LM) clinically can mimic myocardial infarction (MI), they are regarded as distinct clinical entities. However, we observed a high prevalence (32%) of recent MI in patients diagnosed post-mortem with LM. To investigate if LM changes coronary atherosclerotic plaque, we analyzed in autopsied hearts the inflammatory infiltrate and stability in coronary atherosclerotic lesions in patients with LM and/or MI. METHODS: The three main coronary arteries were isolated at autopsy of patients with LM, with MI of 3-6h old, with LM and MI of 3-6h old (LM+MI) and controls...
January 7, 2017: International Journal of Cardiology
https://www.readbyqxmd.com/read/28031683/left-main-coronary-spasm-an-extremely-rare-entity-with-possible-life-threatening-complications
#2
A Al Emam, N Sricharoen
Coronary artery spasm is a known cause of acute coronary syndrome. However, left main coronary spasm is an extremely rare entity and can present in different ways depending on the duration and severity of the spasm. We present a 44-year-old female patient who presented with transient ST elevation in the lead aVR and ST depression in the lateral and inferior leads. Coronary angiography showed mid left main and ostial right coronary artery spasm that significantly improved after intracoronary nitroglycerine administration...
December 2016: International Journal of Angiology: Official Publication of the International College of Angiology, Inc
https://www.readbyqxmd.com/read/28017336/spasm-and-reopening-of-the-right-gastroepiploic-artery-conduit-after-coronary-artery-bypass-grafting
#3
Jae-Hak Huh, Kyung-Hak Lee, Kwang Ree Cho, Ho Young Hwang, Ki-Bong Kim
BACKGROUND: The right gastroepiploic artery (RGEA) has advantages for use as an arterial conduit in coronary artery bypass graft surgery but perioperative spasm often develops. This study assessed the spasm and occlusion rates of RGEA conduits and elucidated the mechanism of reopening of occluded RGEA conduits. METHODS: Patients who received an RGEA conduit in coronary artery bypass graft surgery were studied (n = 976; 700 composite, 276 in situ, 16 free grafts; 16 received both in situ and composite grafts)...
December 22, 2016: Annals of Thoracic Surgery
https://www.readbyqxmd.com/read/28012648/impact-of-vasomotion-type-on-prognosis-of-coronary-artery-spasm-induced-by-acetylcholine-provocation-test-of-left-coronary-artery
#4
Eun Mi Lee, Man Ho Choi, Hong Seog Seo, Hyun Ki Kim, Nam-Ho Kim, Cheol Ung Choi, Jin Won Kim, Hong Euy Lim, Eung Ju Kim, Seung-Woon Rha, Chang Gyu Park, Dong Joo Oh
BACKGROUND AND AIMS: The impact of vasomotion types on long-term clinical outcomes in patients with coronary artery spasm (CAS) induced by the acetylcholine provocation test (ACH-test) remains unclear. METHODS: We evaluated 4644 consecutive patients with typical resting chest pain (CP), but no angiographically significant coronary artery lesion (<50% stenosis), who underwent an ACH-test. According to their vasomotor response, patients were categorized into four types: normal vasomotion (no CP, no ischemic electrocardiographic changes, and no vasoconstriction), microvascular spasm (CP with <75% vasoconstriction but with CP relief after nitroglycerin infusion), epicardial spasm (CP with ≥75% vasoconstriction), and ACH-test inconclusive (vasoconstriction and/or electrocardiographic changes, but no CP)...
September 16, 2016: Atherosclerosis
https://www.readbyqxmd.com/read/27988074/the-acetylcholine-administration-time-plays-the-key-role-for-provoked-spasm-in-the-spasm-provocation-test
#5
Shozo Sueda, Hiroaki Kohno
BACKGROUND: Acetylcholine (ACh) was administered for 3min in the ENCORE study, while the Japanese Circulation Society guidelines recommended the 20s ACh injection as an ACh test. OBJECTIVES: We compared the ischemic findings between ACh administration for 3min and ACh injection for 20s in the same patients and in the same ACh doses without administration of nitrates in the left coronary artery. METHODS: We investigated 30 patients with ischemic heart disease (25 men, 67±10 years, ACh 50μg: 3, ACh 100μg: 9, ACh 200μg: 18) by the above two ACh injection procedures...
December 14, 2016: Journal of Cardiology
https://www.readbyqxmd.com/read/27969854/tct-497-a-novel-scoring-system-predicting-major-adverse-cardiac-events-in-coronary-artery-spasm-patients-a-large-scale-simulation-analysis
#6
Jun Hyuk Kang, Seung-Woon Rha, Byoung Geol Choi, Jae Kyeong Byun, Se Yeon Choi, Woo Hyeun Kim, Ja Yeon Choi, James Hall, Sung Hun Park, SunKi Lee, Hu Li, Jin Oh Na, Cheol Ung Choi, Jin Won Kim, Hong Euy Lim, Eung Ju Kim, Chang Gyu Park, Hong-Seog Seo, Dong Joo Oh
No abstract text is available yet for this article.
November 1, 2016: Journal of the American College of Cardiology
https://www.readbyqxmd.com/read/27969848/tct-489-impact-of-left-ventricular-hypertrophy-on-coronary-artery-spasm-as-assessed-by-acetylcholine-provocation-test
#7
Woo Hyeun Kim, Seung-Woon Rha, Byoung Geol Choi, Jae Kyeong Byun, Se Yeon Choi, Jun Hyuk Kang, Ja Yeon Choi, James Hall, Sung Hun Park, SunKi Lee, Hu Li, Jin Oh Na, Cheol Ung Choi, Jin Won Kim, Hong Euy Lim, Eung Ju Kim, Chang Gyu Park, Hong-Seog Seo, Dong Joo Oh
No abstract text is available yet for this article.
November 1, 2016: Journal of the American College of Cardiology
https://www.readbyqxmd.com/read/27969847/tct-490-five-year-clinical-outcomes-are-different-according-to-the-severity-of-coronary-artery-spasm-as-assessed-by-intracoronary-acetylcholine-provocation-test
#8
Yong Hoon Kim, Seung-Woon Rha, Ae-Young Her, Byoung Geol Choi, Jae Kyeong Byun, Se Yeon Choi, Jun Hyuk Kang, Woo Hyeun Kim, Ja Yeon Choi, James Hall, Sung Hun Park, SunKi Lee, Hu Li, Jin Oh Na, Cheol Ung Choi, Jin Won Kim, Hong Euy Lim, Eung Ju Kim, Chang Gyu Park, Hong-Seog Seo, Dong Joo Oh
No abstract text is available yet for this article.
November 1, 2016: Journal of the American College of Cardiology
https://www.readbyqxmd.com/read/27933173/a-rare-case-of-gestational-thyrotoxicosis-as-a-cause-of-acute-myocardial-infarction
#9
Varalaxmi Bhavani Nannaka, Dmitry Lvovsky
: Angina pectoris in pregnancy is unusual and Prinzmetal's angina is much rarer. It accounts for 2% of all cases of angina. It is caused by vasospasm, but the mechanism of spasm is unknown but has been linked with hyperthyroidism in some studies. Patients with thyrotoxicosis-induced acute myocardial infarction are unusual and almost all reported cases have been associated with Graves' disease. Human chorionic gonadotropin hormone-induced hyperthyroidism occurs in about 1.4% of pregnant women, mostly when hCG levels are above 70-80 000 IU/L...
2016: Endocrinology, Diabetes & Metabolism Case Reports
https://www.readbyqxmd.com/read/27928223/impact-of-old-age-on-clinical-and-angiographic-characteristics-of-coronary-artery-spasm-as-assessed-by-acetylcholine-provocation-test
#10
Woong Gil Choi, Soo Hyun Kim, Seung-Woon Rha, Kang-Yin Chen, Yong-Jian Li, Byoung Geol Choi, Se Yeon Choi, Jin Won Kim, Eung Ju Kim, Chang Gyu Park, Hong Seog Seo, Dong Joo Oh
BACKGROUND: Smoking and other risk factors have been well known as important factors of variant angina or coronary artery spasm (CAS). However, clinical features related to age on coronary artery spasm have been rarely evaluated. METHODS: We evaluated 3155 consecutive patients with insignificant coronary artery lesion. Patients underwent Acetylcholine (Ach) provocation test for induction of CAS. CAS was defined as > 70% luminal narrowing of coronary arteries during Ach provocation test...
October 2016: Journal of Geriatric Cardiology: JGC
https://www.readbyqxmd.com/read/27921167/the-real-world-in-the-clinic-before-and-after-the-establishment-of-guidelines-for-coronary-artery-spasm-a-questionnaire-for-members-of-the-japanese-cine-angio-association
#11
Shozo Sueda, Hiroaki Kohno, Hideaki Yoshino
We investigated the clinical situations and the present knowledge of Japanese cardiologists about coronary artery spasm before and after the establishment of guidelines for this condition in the real world. A questionnaire was developed regarding the number of cases of coronary angiography, percutaneous coronary intervention, and invasive/non-invasive spasm provocation tests before (2008) and after (2014) the establishment of the Japanese Circulation Society (JCS) guidelines for coronary artery spasm and the status of spasm provocation tests...
December 5, 2016: Heart and Vessels
https://www.readbyqxmd.com/read/27910134/effectiveness-of-handmade-jacky-like-catheter-as-a-single-multipurpose-catheter-in-transradial-coronary-angiography-a-randomized-comparison-with-conventional-two-catheter-strategy
#12
Ismail Erden, Ebru Golcuk, Serdar Bozyel, Emine Cakcak Erden, Yakup Balaban, Kivanc Yalın, Burak Turan
OBJECTIVE: To investigate safety and efficacy of specialized hand-modified "Jacky-Like" catheter (JLC) as a single dual-purpose catheter in transradial coronary angiography. METHODS: Patients over 18 years undergoing diagnostic CAG through right radial artery (RRA) were prospectively enrolled. Procedures were performed with a single JLC modified from a left Judkins (JL) 3.5 catheter or by using 2-catheter approach (2C). Procedures with coronary artery bypass grafts or ventricular angiographies were excluded from the study...
December 2, 2016: Journal of Interventional Cardiology
https://www.readbyqxmd.com/read/27887648/the-potential-hazard-of-drug-eluting-stent-induced-coronary-vasospasm-causing-subacute-stent-thrombosis-a-case-report
#13
Hiroki Shibutani, Yuzo Akita, Yumie Matsui, Masahiro Yoshinaga, Masahiro Karakawa
BACKGROUND: Drug-eluting stent (DES) -induced coronary vasospasm is a well known phenomenon after stent implantation; however, the extent of this risk is still unknown. We report a case in which DES-induced severe coronary vasospasm was clinically suspected as a cause of subacute stent thrombosis (ST). CASE PRESENTATION: A 67-year-old man came to our hospital due to chest pain with mild exercise. He was diagnosed with effort angina by coronary angiography and underwent DES implantation in the mid-left ascending artery (LAD) after the administration of dual anti-platelet therapy...
November 25, 2016: BMC Cardiovascular Disorders
https://www.readbyqxmd.com/read/27873500/impact-of-diltiazem-alone-versus-diltiazem-with-nitrate-on-five-year-clinical-outcomes-in-patients-with-significant-coronary-artery-spasm
#14
Taeshik Park, Ji Young Park, Seung Woon Rha, Hong Seog Seo, Byoung Geol Choi, Se Yeon Choi, Jae Kyeong Byun, Sang Ho Park, Eun Jin Park, Jah Yeon Choi, Sung Hun Park, Jae Joong Lee, Sunki Lee, Jin Oh Na, Cheol Ung Choi, Hong Euy Lim, Jin Won Kim, Eung Ju Kim, Chang Gyu Park, Dong Joo Oh
PURPOSE: Calcium channel blockers diltiazem and nitrate have been used as selective coronary vasodilators for patients with significant coronary artery spasm (CAS). However, no study has compared the efficacy of diltiazem alone versus diltiazem with nitrate for long-term clinical outcomes in patients with CAS. MATERIALS AND METHODS: A total of 2741 consecutive patients without significant coronary artery disease with positive CAS by acetylcholine (Ach) provocation test between November 2004 and May 2014 were enrolled...
January 2017: Yonsei Medical Journal
https://www.readbyqxmd.com/read/27873006/feasibility-of-omitting-provocation-test-with-50%C3%A2-%C3%AE-g-of-acetylcholine-in-left-coronary-artery
#15
Yuichi Saito, Hideki Kitahara, Toshihiro Shoji, Satoshi Tokimasa, Takashi Nakayama, Kazumasa Sugimoto, Yoshihide Fujimoto, Yoshio Kobayashi
According to the Japanese Circulation Society guideline of vasospastic angina, incremental doses of acetylcholine (ACh) are prescribed for coronary spasm provocation: 20 and 50 μg for the right coronary artery (RCA), and 20, 50 and 100 μg for the left coronary artery (LCA). However, provocation by low doses of ACh in patients with low vasoreactivity may be less needed, and the requirement of 50 μg of ACh for the LCA in these patients has not been evaluated. In the present study, patients who underwent ACh provocation test for both the RCA and LCA were included...
November 21, 2016: Heart and Vessels
https://www.readbyqxmd.com/read/27866135/endothelial-dysfunction-and-the-occurrence-of-radial-artery-spasm-during-transradial-coronary-procedures-the-acra-spasm-study
#16
Dirk van der Heijden, Maarten A H van Leeuwen, Gladys N Janssens, Jailen Hermie, Mattie J Lenzen, Marco J P F Ritt, Peter M van de Ven, Ferdinand Kiemeneij, Niels van Royen
AIMS: The aim of this study was to analyse the relation between endothelial dysfunction (ED) and the occurrence of radial artery spasm (RAS) during transradial coronary procedures. METHODS AND RESULTS: From May 2014 to June 2015, endothelial function was assessed by EndoPAT and FMD before the procedure in 165 patients referred for coronary angiography or intervention. The primary endpoint was RAS, defined by patient's symptoms and procedural characteristics. The mean age of the study population was 63 years and 71% were male...
November 20, 2016: EuroIntervention
https://www.readbyqxmd.com/read/27846110/effects-of-topical-medications-on-radial-artery-spasm-in-patients-undergoing-transradial-coronary-procedures-a-systematic-review-protocol
#17
Elizabeth Curtis, Ritin Fernandez, Astin Lee
The objective is to identify the effectiveness of topical medications in reducing radial artery spasm in patients undergoing transradial coronary procedures.
October 2016: JBI Database of Systematic Reviews and Implementation Reports
https://www.readbyqxmd.com/read/27824011/recurrent-multivessel-coronary-artery-spasm-presented-as-myocardial-infarction
#18
Hao Zhang, Wen-Jia Zhang, Yong-Jian Wu, Run-Lin Gao
No abstract text is available yet for this article.
2016: Chinese Medical Journal
https://www.readbyqxmd.com/read/27817850/-is-coronary-artery-spasm-a-disease-specific-to-women
#19
X Halna du Fretay, M A Bouzid, B Blanchard-Lemoine, H Benamer
Vasospastic angina is considered rare in Europe but with a prevalence probably underestimated and affects preferentially men in published studies, mostly involving Asian populations. Vasospastic angina in the female population have specificities in terms of pathophysiology, clinical presentation and prognosis, as well as diagnostic strategies currently recommended, that we describe from a clinical case. Although known for over 50years, vasospastic angina remains a disease still insufficiently researched, probably even less in women...
December 2016: Annales de Cardiologie et D'angéiologie
https://www.readbyqxmd.com/read/27805707/assessment-of-indirect-inflammatory-markers-in-patients-with-myocardial-bridging
#20
Levent Cerit
INTRODUCTION: Myocardial bridging (MB) is a congenital variant of the coronary artery in which a portion of the epicardial coronary artery takes an intramuscular course. Although it is considered a benign anomaly, it may lead to such complications as myocardial ischaemia, acute coronary syndrome, coronary spasm, exercise-induced dysrhythmias or even sudden death. MB may be related to increased inflammatory and atherosclerotic processes. This study was conducted with the aim of evaluating the relationship between neutrophil/lymphocyte ratio (NLR) and MB...
August 19, 2016: Cardiovascular Journal of Africa
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