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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
#1
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/28341787/potential-new-treatment-for-non-freezing-cold-injury-is-iloprost-the-way-forward
#2
Anne-Marie Ionescu, Sarah Hutchinson, Mehtab Ahmad, Christopher Imray
INTRODUCTION: Non-freezing cold injury (NFCI) remains largely under-reported, and is of particular importance in the armed forces where its prevalence is greatest. Iloprost, a synthetic prostaglandin I2 analogue, has previously been used with some success in the treatment of vasospastic and freezing cold injuries, although its role in NFCI remains unclear. CASE REPORT: An Iloprost infusion was used to treat the long-term sequelae of an ex-soldier suffering with ongoing pedal pain and loss of function 20 years after the initial NFCI insult sustained on military exercise...
March 23, 2017: Journal of the Royal Army Medical Corps
https://www.readbyqxmd.com/read/28296760/fluctuations-in-the-amplitude-of-st-segment-elevation-in-vasospastic-angina-two-case-reports
#3
Ming-Jui Hung
RATIONALE: ST-segment elevation localizes an ischemic lesion to the coronary artery supplying the area of the myocardium reflected by the electrocardiographic leads. Dynamic ST-segment elevation can be due to severe transmural ischemia secondary to a thrombus, vasospasm, or a tightly fixed coronary artery lesion or a combination of these situations. PATIENT CONCERNS: In this study, we report on two patients with angina who had fluctuations in ST-segment amplitude on serial electrocardiograms...
March 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28283339/prinzmetal-angina-coronary-vasospasm-associated-with-5-fluorouracil-chemotherapy
#4
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/28268085/ultra-long-acting-calcium-channel-blockers-may-decrease-accuracy-of-the-acetylcholine-provocation-test
#5
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
https://www.readbyqxmd.com/read/28241122/numerical-investigation-of-vasospasm-detection-by-extracranial-blood-velocity-ratios
#6
Jaiyoung Ryu, Nerissa Ko, Xiao Hu, Shawn C Shadden
BACKGROUND: Early diagnosis of vasospasm following subarachnoid hemorrhage can prevent cerebral ischemia and improve neurological outcomes. This study numerically evaluates the relevance of extracranial blood velocity indices to detect vasospasm. METHODS: A numerical model of cerebral blood flow was used to evaluate the hemodynamics associated with anterior and posterior vasospasm under normal and impaired cerebral autoregulation conditions. Extracranial blood velocities at the carotid and vertebral arteries and their ratios between ipsilateral and contralateral, anterior and posterior, and downstream and upstream arteries were monitored during vasospasm progression...
February 28, 2017: Cerebrovascular Diseases
https://www.readbyqxmd.com/read/28153536/kounis-syndrome-a-review-article-on-epidemiology-diagnostic-findings-management-and-complications-of-allergic-acute-coronary-syndrome
#7
REVIEW
Mahmoud Abdelghany, Rogin Subedi, Siddharth Shah, Hani Kozman
Kounis syndrome (KS) is a hypersensitivity coronary disorder induced by exposure to drugs, food, environmental and other triggers. Vasospastic allergic angina, allergic myocardial infarction (MI) and stent thrombosis with occluding thrombus infiltrated by eosinophils and/or mast cells constitute the three main variants of this syndrome. We reviewed 175 patients who fulfilled the definition of one of the three types of KS. The epidemiology, diagnostic findings, management and complications were reviewed in this article...
April 1, 2017: International Journal of Cardiology
https://www.readbyqxmd.com/read/28123625/vasospastic-myocardial-infarction-an-even-rarer-occurrence-of-a-rare-entity
#8
Cem Ertan, Mehmet Emre Özpelit, Önder Limon, Deniz Oray, Nihat Pekel
No abstract text is available yet for this article.
2017: World Journal of Emergency Medicine
https://www.readbyqxmd.com/read/28119443/measuring-physical-stigmata-of-niacin-associated-skin-toxicity-by-colorimetry-white-light-spectroscopy-laser-doppler-flowmetry-and-thermometry-in-combination-with-symptom-perception-scoring-methods-to-aid-development-of-niacin-mimetics
#9
Richard L Dunbar, Harsh Goel, Sony Tuteja, Wen-Liang Song, Grace Nathanson, Zeeshan Babar, Dusanka Lalic, Joel M Gelfand, Daniel J Rader, Gary L Grove
Though cardioprotective, niacin monotherapy is limited by unpleasant cutaneous symptoms mimicking dermatitis: Niacin-Associated Skin Toxicity (NASTy). Niacin is prototypical of several emerging drugs suffering off-target rubefacient properties, whereby agonizing the GPR109A receptor on cutaneous immune cells provokes vasodilation, prompting skin plethora and rubor, as well as dolor, tumor, and calor, and systemically, heat loss, frigor, chills, and rigors. Typically, NASTy effects are described by subjective, patient-reported perception, at best semi-quantitative and bias-prone...
January 23, 2017: Journal of Lipid Research
https://www.readbyqxmd.com/read/28087290/inferior-j-waves-in-patients-with-vasospastic-angina-might-be-a-risk-factor-for-ventricular-fibrillation
#10
Tomoko Fumimoto, Takeshi Ueyama, Akihiko Shimizu, Yasuhiro Yoshiga, Makoto Ono, Takayoshi Kato, Hironori Ishiguchi, Takayuki Okamura, Jutaro Yamada, Masafumi Yano
BACKGROUND: There is little information about the relationship between J waves and the occurrence of ventricular fibrillation (VF) in patients with vasospastic angina (VSA). The present study aimed to assess the incidence of J waves and the occurrence of VF in patients with VSA. METHODS: The subjects consisted of 62 patients with VSA diagnosed by acetylcholine provocation tests in our institution from 2002 to 2014. We investigated the VF events, prevalence of J waves, and relationship between the VF events and J waves...
January 10, 2017: Journal of Cardiology
https://www.readbyqxmd.com/read/28040441/recurrent-vasospastic-myocardial-infarctions-and-hand-necrosis
#11
Florian Rey, Marco Roffi, Cindy Bouvet, Romain Bréguet, Peter Jandus, Fabio Rigamonti
No abstract text is available yet for this article.
January 23, 2017: JACC. Cardiovascular Interventions
https://www.readbyqxmd.com/read/28038722/management-standards-for-stable-coronary-artery-disease-in-india
#12
Sundeep Mishra, Saumitra Ray, Jamshed J Dalal, J P S Sawhney, S Ramakrishnan, Tiny Nair, S S Iyengar, V K Bahl
Coronary artery disease (CAD) is one of the important causes of cardiovascular morbidity and mortality globally, giving rise to more than 7 million deaths annually. An increasing burden of CAD in India is a major cause of concern with angina being the leading manifestation. Stable coronary artery disease (SCAD) is characterised by episodes of transient central chest pain (angina pectoris), often triggered by exercise, emotion or other forms of stress, generally triggered by a reversible mismatch between myocardial oxygen demand and supply resulting in myocardial ischemia or hypoxia...
December 2016: Indian Heart Journal
https://www.readbyqxmd.com/read/28005169/paroxysmal-atrial-fibrillation-during-intracoronary-acetylcholine-provocation-test
#13
Yuichi Saito, Hideki Kitahara, Toshihiro Shoji, Satoshi Tokimasa, Takashi Nakayama, Kazumasa Sugimoto, Yoshihide Fujimoto, Yoshio Kobayashi
Intracoronary acetylcholine (ACh) provocation test is useful to diagnose vasospastic angina. However, paroxysmal atrial fibrillation (AF) often occurs during intracoronary ACh provocation test, leading to disabling symptoms. The aim of this study was to investigate the incidence and predictors of paroxysmal AF during the test. A total of 377 patients without persistent AF who underwent intracoronary ACh provocation test were included. Paroxysmal AF during ACh provocation test was defined as documented AF on electrocardiogram during the procedure...
December 22, 2016: Heart and Vessels
https://www.readbyqxmd.com/read/27969863/tct-499-influence-of-gender-on-the-clinical-characteristics-and-prognostic-factors-in-patients-with-vasospastic-angina
#14
da Hyon Lee, Jeong Hoon Yang, Joo Yong Hahn, Cláudia Jorge, Sang Hoon Lee, Fausto J Pinto, Seung-Hyuk Choi
No abstract text is available yet for this article.
November 1, 2016: Journal of the American College of Cardiology
https://www.readbyqxmd.com/read/27969856/tct-498-lower-mortality-in-patients-with-vasospastic-angina-who-receive-statin-therapy-data-from-the-asan-vasospastic-angina-registry
#15
Cheol Hyun Lee, Osung Kwon, Ungjeong Do, Jung Ae Hong, Kyusup Lee, Min Soo Cho, Jaeseok Bae, Do-Yoon Kang, Se Hun Kang, Pil Hyung Lee, Sung-Han Yoon, Jung-Min Ahn, Duk-Woo Park, Soo-Jin Kang, Seung-Whan Lee, Young-Hak Kim, Cheol Whan Lee, Seong-Wook Park, Seung-Jung Park
No abstract text is available yet for this article.
November 1, 2016: Journal of the American College of Cardiology
https://www.readbyqxmd.com/read/27939277/thrombus-and-plaque-erosion-characterized-by-optical-coherence-tomography-in-patients-with-vasospastic-angina
#16
Eun-Seok Shin, Ae-Young Her, Soe Hee Ann, Gillian Balbir Singh, Heeyoun Cho, Eui Cheol Jung, Eun Bo Shim, Bon-Kwon Koo, Takashi Akasaka
INTRODUCTION AND OBJECTIVES: Vasospastic angina (VSA) can result in endothelial damage and thrombus formation. The aim of this study was to evaluate the incidence of thrombus and plaque characteristics at coronary spasm segments compared with nonspasm segments by using optical coherence tomography (OCT) in patients with suspected VSA. METHODS: One hundred and eighty-three patients with suspected VSA were enrolled in this study. The ergonovine provocation test was performed in all patients for the diagnosis of VSA except in patients with spontaneous spasm...
December 7, 2016: Revista Española de Cardiología
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
#17
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/27904032/coronary-microvascular-dysfunction%C3%A3-epidemiology-pathogenesis-prognosis-diagnosis-risk-factors-and-therapy
#18
REVIEW
Cheng Chen, Janet Wei, Ahmed AlBadri, Parham Zarrini, C Noel Bairey Merz
Angina has traditionally been thought to be caused by obstructive coronary artery disease (CAD). However, a substantial number of patients with angina are found to not have obstructive CAD when undergoing coronary angiography. A significant proportion of these patients have coronary microvascular dysfunction (CMD), characterized by heightened sensitivity to vasoconstrictor stimuli and limited microvascular vasodilator capacity. With the advent of non-invasive and invasive techniques, the coronary microvasculature has been more extensively studied in the past 2 decades...
December 22, 2016: Circulation Journal: Official Journal of the Japanese Circulation Society
https://www.readbyqxmd.com/read/27884129/in-vivo-optical-coherence-tomography-visualization-of-intraplaque-neovascularization-at-the-site-of-coronary-vasospasm-a-case-report
#19
Kenichi Tsujita, Koichi Kaikita, Satoshi Araki, Toshihiro Yamada, Suguru Nagamatsu, Kenshi Yamanaga, Kenji Sakamoto, Sunao Kojima, Seiji Hokimoto, Hisao Ogawa
BACKGROUND: Coronary plaques in patients with coronary vasospastic angina have been characterized by diffuse intima-media thickening with homogeneous fibrous tissue, without confluent necrotic tissue. However, coronary vasospasm can trigger coronary thrombosis, and may play an important role in the pathogenesis of acute coronary syndromes, though the precise morphological mechanisms underlying this process remain unclear. CASE PRESENTATION: A 43-year-old man with a history of multivessel coronary vasospastic angina had been treated with long-acting diltiazem and fluvastatin since 2004...
November 25, 2016: BMC Cardiovascular Disorders
https://www.readbyqxmd.com/read/27873006/feasibility-of-omitting-provocation-test-with-50%C3%A2-%C3%AE-g-of-acetylcholine-in-left-coronary-artery
#20
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
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