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Sueda S, Kurokawa K, Sakaue T, Ikeda S. What is the meaning of provoked spasm phenotypes by vasoreactivity testing? J Cardiol 2024; 83:1-7. [PMID: 37453595 DOI: 10.1016/j.jjcc.2023.06.013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/28/2023] [Revised: 06/15/2023] [Accepted: 06/29/2023] [Indexed: 07/18/2023]
Abstract
Coronary artery epicardial spasm is involved in the pathogenesis of many cardiac disorders. Vasoreactivity testing, such as intracoronary injection of acetylcholine (ACH) or ergonovine (ER), is the gold standard method for the diagnosis of vasospastic angina. Provoked epicardial spasm phenotypes are classified as focal spasm and diffuse spasm. Multiple factors, including sex, ethnicity, and use of coronary vasoactive stimulators, are related to the provoked phenotypes of epicardial spasm. Diffuse-provoked spasm is often observed in females, where focal-provoked spasm is markedly more common in males. ACH provokes more diffuse and distal spasms, whereas ER induces more focal and proximal spasms. Yellow plaque and coronary thrombi are often observed in lesions with focal spasms, and intimal thickness with a sonolucent zone is significantly more common in lesions with focal spasm. Furthermore, clinical outcomes in patients with focal spasm are unsatisfactory compared with those in patients with diffuse spasm. However, the reproducibility and eternality of provoked spasm phenotypes by vasoreactivity testing is uncertain. Coronary atherosclerosis or endothelial damage may affect coronary vasomotor tone. Although coronary artery spasm may persist in the same coronary artery, provoked coronary spasm phenotypes may exhibit a momentary coronary reaction by intracoronary ACH or ER testing.
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Affiliation(s)
- Shozo Sueda
- Department of Cardiology, Pulmonology, Hypertension & Nephrology, Ehime University Graduate School of Medicine, Toon City, Japan; Department of Cardiology, Ehime Prefectural Niihama Hospital, Niihama City, Japan.
| | - Keisho Kurokawa
- Department of Cardiology, Ehime Prefectural Niihama Hospital, Niihama City, Japan
| | - Tomoki Sakaue
- Department of Cardiology, Pulmonology, Hypertension & Nephrology, Ehime University Graduate School of Medicine, Toon City, Japan
| | - Shuntaro Ikeda
- Department of Cardiology, Pulmonology, Hypertension & Nephrology, Ehime University Graduate School of Medicine, Toon City, Japan
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2
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Kawai H, Ohta M, Motoyama S, Hashimoto Y, Takahashi H, Muramatsu T, Sarai M, Narula J, Ozaki Y. Computed Tomographic Angiography-Verified Myocardial Bridge and Invasive Angiography-Verified Left Anterior Descending Coronary Artery Vasospasm. JACC Cardiovasc Interv 2020; 13:144-146. [PMID: 31548153 DOI: 10.1016/j.jcin.2019.08.023] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/29/2019] [Accepted: 08/06/2019] [Indexed: 11/26/2022]
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3
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Hung MY, Kounis NG, Lu MY, Hu P. Myocardial Ischemic Syndromes, Heart Failure Syndromes, Electrocardiographic Abnormalities, Arrhythmic Syndromes and Angiographic Diagnosis of Coronary Artery Spasm: Literature Review. Int J Med Sci 2020; 17:1071-1082. [PMID: 32410837 PMCID: PMC7211159 DOI: 10.7150/ijms.43472] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/29/2019] [Accepted: 03/23/2020] [Indexed: 01/06/2023] Open
Abstract
In coronary artery spasm (CAS), an excess coronary vasoconstriction causing total or subtotal vessel occlusion could lead to syncope, heart failure syndromes, arrhythmic syndromes, and myocardial ischemic syndromes including asymptomatic myocardial ischemia, stable and unstable angina, acute myocardial infarction, and sudden cardiac death. Although the clinical significance of CAS has been underrated because of the frequent absence of symptoms, affected patients appear to be at higher risk of syncope, serious arrhythmias, and sudden death than those with classic Heberden's angina pectoris. Therefore, a prompt diagnosis has important therapeutic implications, and is needed to avoid CAS-related complications. While a definitive diagnosis is based mainly on coronary angiography and provocative testing, clinical features may help guide decision-making. We perform a literature review to assess the past and current state of knowledge regarding the clinical features, electrocardiographic abnormalities and angiographic diagnosis of CAS, while a discussion of mechanisms is beyond the scope of this review.
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Affiliation(s)
- Ming-Yow Hung
- Division of Cardiology, Department of Internal Medicine, Shuang Ho Hospital, Taipei Medical University, New Taipei City, Taiwan.,Taipei Heart Institute, Taipei Medical University, Taipei, Taiwan.,Division of Cardiology, Department of Internal Medicine, School of Medicine, College of Medicine, Taipei Medical University, Taipei, Taiwan
| | - Nicholas G Kounis
- Department of Cardiology, University of Patras Medical School, Rion, Patras, Achaia, Greece
| | - Meng-Ying Lu
- Division of Cardiology, Department of Internal Medicine, Shuang Ho Hospital, Taipei Medical University, New Taipei City, Taiwan
| | - Patrick Hu
- University of California, Riverside, Riverside, California, USA.,Department of Cardiology, Riverside Medical Clinic, Riverside, California, USA
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Beijk MA, Vlastra WV, Delewi R, van de Hoef TP, Boekholdt SM, Sjauw KD, Piek JJ. Myocardial infarction with non-obstructive coronary arteries: a focus on vasospastic angina. Neth Heart J 2019; 27:237-245. [PMID: 30689112 PMCID: PMC6470236 DOI: 10.1007/s12471-019-1232-7] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022] Open
Abstract
Vasospastic angina (VSA) is considered a broad diagnostic category including documented spontaneous episodes of angina pectoris produced by coronary epicardial vasospasm as well as those induced during provocative coronary vasospasm testing and coronary microvascular dysfunction due to microvascular spasm. The hallmark feature of VSA is rest angina, which promptly responds to short-acting nitrates; however, VSA can present with a great variety of symptoms, ranging from stable angina to acute coronary syndrome and even ventricular arrhythmia. VSA is more prevalent in females, who can present with symptoms different from those among male patients. This may lead to an underestimation of cardiac causes of chest-related symptoms in female patients, in particular if the coronary angiogram (CAG) is normal. Evaluation for the diagnosis of VSA includes standard 12-lead ECG during the attack, Holter monitoring, exercise testing, and echocardiography. Patients suspected of having VSA with a normal CAG without a clear myocardial or non-cardiac cause are candidates for provocative coronary vasospasm testing. The gold standard method for provocative coronary vasospasm testing involves the administration of a provocative drug during CAG while monitoring patient symptoms, ECG and documentation of the coronary artery. Treatment of VSA consists of lifestyle adaptations and pharmacotherapy with calcium channel blockers and nitrates.
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Affiliation(s)
- M A Beijk
- Academic Medical Centre, University of Amsterdam, Amsterdam, The Netherlands.
| | - W V Vlastra
- Academic Medical Centre, University of Amsterdam, Amsterdam, The Netherlands
| | - R Delewi
- Academic Medical Centre, University of Amsterdam, Amsterdam, The Netherlands
| | - T P van de Hoef
- Academic Medical Centre, University of Amsterdam, Amsterdam, The Netherlands
| | - S M Boekholdt
- Academic Medical Centre, University of Amsterdam, Amsterdam, The Netherlands
| | - K D Sjauw
- Academic Medical Centre, University of Amsterdam, Amsterdam, The Netherlands.,Medisch Centrum Leeuwarden, Leeuwarden, The Netherlands
| | - J J Piek
- Academic Medical Centre, University of Amsterdam, Amsterdam, The Netherlands
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5
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Abstract
PURPOSE OF REVIEW Variant angina, which is characterized by recurrent chest pain and transient ECG changes along with angiographic evidence of coronary artery spasm, generally has a favorable prognosis. However, episodes of ischemia caused by vasospasm may lead to potentially life-threatening ventricular arrhythmias and cardiac arrest, even in patients with no history of prior cardiac disease. This review describes the epidemiology, pathogenesis, clinical spectrum, and management of variant angina, as well as outcomes in patients who present with aborted sudden cardiac death (ASCD). RECENT FINDINGS Contrary to prior opinions, evidence from recent observational studies indicate that patients with variant angina presenting with ASCD face a worse prognosis than those without this type of presentation. Predictors of ASCD include age, hypertension, hyperlipidemia, family history of sudden cardiac death, multi-vessel spasm, and left anterior descending artery spasm. Medical therapy alone with calcium channel blockers and nitrates may not be sufficiently protective in these patients and there is lack of concrete data on the optimal management strategy. Current guidelines recommend implantable cardiac defibrillator (ICD) therapy in patients who are survivors of cardiac arrest caused by ventricular fibrillation or unstable ventricular tachycardia after reversible causes are excluded, and should strongly be considered in these patients. Although medical therapy is absolutely imperative for patients with variant angina and a history of ASCD, ICD therapy in these patients is justified. Further large-scale studies are required to determine whether ICD therapy can improve survival in this high-risk group of patients.
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Affiliation(s)
- Amartya Kundu
- Department of Cardiovascular Medicine, University of Massachusetts Medical School, 55 Lake Ave N, Worcester, MA, 01655, USA.
| | - Aditya Vaze
- Department of Medicine, University of Massachusetts Medical School, Worcester, MA, USA
| | - Partha Sardar
- Department of Cardiology, University of Utah School of Medicine, Salt Lake City, UT, USA
| | - Ahmed Nagy
- Department of Medicine, University of Massachusetts Medical School, Worcester, MA, USA
| | - Wilbert S Aronow
- Department of Cardiology, Westchester Medical Center, Valhalla, NY, USA
| | - Naomi F Botkin
- Department of Cardiovascular Medicine, University of Massachusetts Medical School, 55 Lake Ave N, Worcester, MA, 01655, USA
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Hung MJ. Fluctuations in the amplitude of ST-segment elevation in vasospastic angina: Two case reports. Medicine (Baltimore) 2017; 96:e6334. [PMID: 28296760 PMCID: PMC5369915 DOI: 10.1097/md.0000000000006334] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/26/2022] Open
Abstract
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. The amplitude of ST-segment elevation varied between 1-20 mm. DIAGNOSES Vasospastic angina (VSA) was diagnosed based on electrocardiography and coronary angiography. INTERVENTIONS Calcium antagonists were prescribed for both patients. OUTCOMES No recurrent VSA was noted during outpatient follow-up. LESSONS VSA can be associated with fluctuations in the amplitude of ST-segment elevation, indicating dynamic coronary vasospasm in different locations and extensions in patients with VSA.
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Ong P, Aziz A, Hansen HS, Prescott E, Athanasiadis A, Sechtem U. Structural and Functional Coronary Artery Abnormalities in Patients With Vasospastic Angina Pectoris. Circ J 2015; 79:1431-1438. [DOI: 10.1253/circj.cj-15-0520] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 08/30/2023]
Affiliation(s)
- Peter Ong
- Department of Cardiology, Robert Bosch Krankenhaus
| | - Ahmed Aziz
- Department of Cardiology, Odense University Hospital
- Department of Cardiology, Robert Bosch Krankenhaus
| | | | - Eva Prescott
- Department of Cardiology, Bispebjerg Hospital, University of Copenhagen
| | | | - Udo Sechtem
- Department of Cardiology, Robert Bosch Krankenhaus
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Shimokawa H. 2014 Williams Harvey Lecture: importance of coronary vasomotion abnormalities-from bench to bedside. Eur Heart J 2014; 35:3180-93. [PMID: 25354517 DOI: 10.1093/eurheartj/ehu427] [Citation(s) in RCA: 164] [Impact Index Per Article: 16.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
Abstract
Coronary vasomotion abnormalities play important roles in the pathogenesis of ischaemic heart disease, in which endothelial dysfunction and coronary artery spasm are substantially involved. Endothelial vasodilator functions are heterogeneous depending on the vessel size, with relatively greater role of nitric oxide (NO) in conduit arteries and predominant role of endothelium-derived hyperpolarizing factor (EDHF) in resistance arteries, where endothelium-derived hydrogen peroxide serves as an important EDHF. The functions of NO synthases in the endothelium are also heterogeneous with multiple mechanisms involved, accounting for the diverse functions of the endothelium in vasomotor as well as metabolic modulations. Cardiovascular abnormalities and metabolic phenotypes become evident when all three NO synthases are deleted, suggesting the importance of both NO and EDHF. Coronary artery spasm plays important roles in the pathogenesis of a wide range of ischaemic heart disease. The central mechanism of the spasm is hypercontraction of vascular smooth muscle cells (VSMCs), but not endothelial dysfunction, where activation of Rho-kinase, a molecular switch of VSMC contraction, plays a major role through inhibition of myosin light-chain phosphatase. The Rho-kinase pathway is also involved in the pathogenesis of a wide range of cardiovascular diseases and new Rho-kinase inhibitors are under development for various indications. The registry study by the Japanese Coronary Spasm Association has demonstrated many important aspects of vasospastic angina. The ongoing international registry study of vasospastic angina in six nations should elucidate the unknown aspects of the disorder. Coronary vasomotion abnormalities appear to be an important therapeutic target in cardiovascular medicine.
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Affiliation(s)
- Hiroaki Shimokawa
- Department of Cardiovascular Medicine, Tohoku University Graduate School of Medicine, Sendai 980-8574, Japan
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Amsterdam EA, Wenger NK, Brindis RG, Casey DE, Ganiats TG, Holmes DR, Jaffe AS, Jneid H, Kelly RF, Kontos MC, Levine GN, Liebson PR, Mukherjee D, Peterson ED, Sabatine MS, Smalling RW, Zieman SJ. 2014 AHA/ACC Guideline for the Management of Patients with Non-ST-Elevation Acute Coronary Syndromes: a report of the American College of Cardiology/American Heart Association Task Force on Practice Guidelines. J Am Coll Cardiol 2014; 64:e139-e228. [PMID: 25260718 DOI: 10.1016/j.jacc.2014.09.017] [Citation(s) in RCA: 2088] [Impact Index Per Article: 208.8] [Reference Citation Analysis] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
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10
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Amsterdam EA, Wenger NK, Brindis RG, Casey DE, Ganiats TG, Holmes DR, Jaffe AS, Jneid H, Kelly RF, Kontos MC, Levine GN, Liebson PR, Mukherjee D, Peterson ED, Sabatine MS, Smalling RW, Zieman SJ. 2014 AHA/ACC guideline for the management of patients with non-ST-elevation acute coronary syndromes: a report of the American College of Cardiology/American Heart Association Task Force on Practice Guidelines. Circulation 2014; 130:e344-426. [PMID: 25249585 DOI: 10.1161/cir.0000000000000134] [Citation(s) in RCA: 636] [Impact Index Per Article: 63.6] [Reference Citation Analysis] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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Abstract
Coronary artery spasm (CAS), an intense vasoconstriction of coronary arteries that causes total or subtotal vessel occlusion, plays an important role in myocardial ischemic syndromes including stable and unstable angina, acute myocardial infarction, and sudden cardiac death. Coronary angiography and provocative testing usually is required to establish a definitive diagnosis. While the mechanisms underlying the development of CAS are still poorly understood, CAS appears to be a multifactorial disease but is not associated with the traditional risk factors for coronary artery disease. The diagnosis of CAS has important therapeutic implications, as calcium antagonists, not β-blockers, are the cornerstone of medical treatment. The prognosis is generally considered benign; however, recurrent episodes of angina are frequently observed. We provide a review of the literature and summarize the current state of knowledge regarding the pathogenesis of CAS.
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Affiliation(s)
- Ming-Jui Hung
- 1. Department of Cardiology, Chang Gung Memorial Hospital, Keelung, Chang Gung University College of Medicine, Taoyuan, Taiwan
| | - Patrick Hu
- 2. International Cardiovascular Institute, Las Vegas, Nevada, USA; ; 3. Department of Cardiology, Riverside Medical Clinic, Riverside, California, USA
| | - Ming-Yow Hung
- 4. Department of Internal Medicine, School of Medicine, College of Medicine, Taipei Medical University, Taipei, Taiwan; ; 5. Division of Cardiology, Department of Internal Medicine, Shuang Ho Hospital, Taipei Medical University, New Taipei City, Taiwan; ; 6. Graduate Institute of Clinical Medical Sciences, Chang Gung University College of Medicine, Taoyuan, Taiwan
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12
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Recurrent acute coronary syndrome due to coronary artery spasm in different coronary arteries. J Cardiol Cases 2013; 8:95-98. [DOI: 10.1016/j.jccase.2013.05.007] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2012] [Revised: 12/17/2012] [Accepted: 05/22/2013] [Indexed: 11/18/2022] Open
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Ong P, Athanasiadis A, Perne A, Mahrholdt H, Schäufele T, Hill S, Sechtem U. Coronary vasomotor abnormalities in patients with stable angina after successful stent implantation but without in-stent restenosis. Clin Res Cardiol 2013; 103:11-9. [DOI: 10.1007/s00392-013-0615-9] [Citation(s) in RCA: 41] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/09/2013] [Accepted: 08/22/2013] [Indexed: 10/26/2022]
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14
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Anderson JL, Adams CD, Antman EM, Bridges CR, Califf RM, Casey DE, Chavey WE, Fesmire FM, Hochman JS, Levin TN, Lincoff AM, Peterson ED, Theroux P, Wenger NK, Wright RS, Zoghbi WA, Arend TE, Oetgen WJ, May C, Bradfield L, Keller S, Ramadhan E, Tomaselli GF, Brown N, Robertson RM, Whitman GR, Bezanson JL, Hundley J. 2012 ACCF/AHA Focused Update Incorporated Into the ACCF/AHA 2007 Guidelines for the Management of Patients With Unstable Angina/Non–ST-Elevation Myocardial Infarction. Circulation 2013; 127:e663-828. [DOI: 10.1161/cir.0b013e31828478ac] [Citation(s) in RCA: 181] [Impact Index Per Article: 16.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
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15
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Anderson JL, Adams CD, Antman EM, Bridges CR, Califf RM, Casey DE, Chavey WE, Fesmire FM, Hochman JS, Levin TN, Lincoff AM, Peterson ED, Theroux P, Wenger NK, Wright RS, Jneid H, Ettinger SM, Ganiats TG, Philippides GJ, Jacobs AK, Halperin JL, Albert NM, Creager MA, DeMets D, Guyton RA, Kushner FG, Ohman EM, Stevenson W, Yancy CW. 2012 ACCF/AHA focused update incorporated into the ACCF/AHA 2007 guidelines for the management of patients with unstable angina/non-ST-elevation myocardial infarction: a report of the American College of Cardiology Foundation/American Heart Association Task Force on Practice Guidelines. J Am Coll Cardiol 2013; 61:e179-347. [PMID: 23639841 DOI: 10.1016/j.jacc.2013.01.014] [Citation(s) in RCA: 373] [Impact Index Per Article: 33.9] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
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Nakad G, Bayeh H. Unusual Vasospastic Angina: A Documented Asymptomatic Spasm with Normal ECG-A Case Report and a Review of the Literature. Case Rep Cardiol 2013; 2013:407242. [PMID: 24826284 PMCID: PMC4008406 DOI: 10.1155/2013/407242] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2013] [Accepted: 04/04/2013] [Indexed: 11/18/2022] Open
Abstract
We report the case of a 53-years-old patient, known to have coronary artery disease, presenting with typical angina at rest with normal ECG and laboratory findings. His angina is relieved by sublingual nitroglycerin. He had undergone a cardiac catheterisation two weeks prior to his presentation for the same complaints. It showed nonsignificant coronary lesions. Another catheterisation was performed during his current admission. He developed coronary spasm during the procedure, still with no ECG changes. The spasm was reversed by administration of 2 mg of intracoronary isosorbide dinitrate. Variant (Prinzmetal's) angina was diagnosed in the absence of electrical ECG changes during pain episodes.
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Affiliation(s)
| | - Hamid Bayeh
- Notre Dame des Secours University Hospital, Holy Spirit University, Joubeil 1401, Lebanon
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17
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Wright RS, Anderson JL, Adams CD, Bridges CR, Casey DE, Ettinger SM, Fesmire FM, Ganiats TG, Jneid H, Lincoff AM, Peterson ED, Philippides GJ, Theroux P, Wenger NK, Zidar JP, Anderson JL, Adams CD, Antman EM, Bridges CR, Califf RM, Casey DE, Chavey WE, Fesmire FM, Hochman JS, Levin TN, Lincoff AM, Peterson ED, Theroux P, Wenger NK, Zidar JP. 2011 ACCF/AHA focused update incorporated into the ACC/AHA 2007 Guidelines for the Management of Patients with Unstable Angina/Non-ST-Elevation Myocardial Infarction: a report of the American College of Cardiology Foundation/American Heart Association Task Force on Practice Guidelines developed in collaboration with the American Academy of Family Physicians, Society for Cardiovascular Angiography and Interventions, and the Society of Thoracic Surgeons. J Am Coll Cardiol 2011; 57:e215-367. [PMID: 21545940 DOI: 10.1016/j.jacc.2011.02.011] [Citation(s) in RCA: 301] [Impact Index Per Article: 23.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
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18
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Anderson JL, Adams CD, Antman EM, Bridges CR, Califf RM, Casey DE, Chavey WE, Fesmire FM, Hochman JS, Levin TN, Lincoff AM, Peterson ED, Theroux P, Wenger NK, Wright RS, Smith SC. 2011 ACCF/AHA Focused Update Incorporated Into the ACC/AHA 2007 Guidelines for the Management of Patients With Unstable Angina/Non-ST-Elevation Myocardial Infarction: a report of the American College of Cardiology Foundation/American Heart Association Task Force on Practice Guidelines. Circulation 2011; 123:e426-579. [PMID: 21444888 DOI: 10.1161/cir.0b013e318212bb8b] [Citation(s) in RCA: 349] [Impact Index Per Article: 26.8] [Reference Citation Analysis] [MESH Headings] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
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Abstract
Although the prevalence of variant angina pectoris is unknown, it appears to be substantially less common than typical, exertional angina and unstable angina at rest. The patient with variant angina typically complains of a pressure-like, squeezing retrosternal chest discomfort of several minutes duration. The diagnosis is secured by the occurrence of transient ST-segment elevation in association with chest pain, both of which resolve spontaneously or with nitroglycerin. After the diagnosis is made, the patient usually becomes symptom-free on calcium-channel blockers with or without long-acting nitrates. Although the long-term survival of these patients is excellent, an occasional individual with variant angina sustains a complication, most often myocardial infarction, a life-threatening arrhythmia, or sudden cardiac death.
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Affiliation(s)
- S Mayer
- Department of Internal Medicine, University of Texas Southwestern Medical Center, Dallas 75235-9047, USA
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20
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Variant (Prinzmetal's) angina as a less common cause of cardiac syncope. COR ET VASA 2008. [DOI: 10.33678/cor.2008.120] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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21
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Teragawa H, Nishioka K, Higashi Y, Chayama K, Kihara Y. Treatment of Coronary Spastic Angina, Particularly Medically Refractory Coronary Spasm. Clin Med Cardiol 2008. [DOI: 10.4137/cmc.s681] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] Open
Affiliation(s)
- Hiroki Teragawa
- Department of Cardiovascular Medicine, Hiroshima, 734-8551, Japan
| | - Kenji Nishioka
- Department of Cardiovascular Medicine, Hiroshima, 734-8551, Japan
| | - Yukihito Higashi
- Department of Cardiovascular Physiology and Medicine, Hiroshima, 734-8551, Japan
| | - Kazuaki Chayama
- Department of Medicine and Molecular Science, Graduate School of Biomedical Sciences, Hiroshima University, Hiroshima, 734-8551, Japan
| | - Yasuki Kihara
- Department of Cardiovascular Medicine, Hiroshima, 734-8551, Japan
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Takagi A, Arai K, Hosaka M, Komatsu Y, Gunnji K, Tanimoto K, Ishizuka N, Tsurumi Y, Hagiwara N. Noninvasive Prediction of Angiographic Spasm Provocation Using Trans-Thoracic Doppler Echocardiography in Patients With Coronary Spastic Angina. Circ J 2008; 72:1640-4. [DOI: 10.1253/circj.cj-08-0393] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Atsushi Takagi
- Department of Cardiology, Tokyo Women's Medical University
| | - Kotaro Arai
- Department of Cardiology, Tokyo Women's Medical University
| | - Motoko Hosaka
- Department of Cardiology, Tokyo Women's Medical University
| | - Yuki Komatsu
- Department of Cardiology, Tokyo Women's Medical University
| | - Kazue Gunnji
- Department of Cardiology, Tokyo Women's Medical University
| | - Kyomi Tanimoto
- Department of Cardiology, Tokyo Women's Medical University
| | - Naoko Ishizuka
- Department of Cardiology, Tokyo Women's Medical University
| | - Yukio Tsurumi
- Department of Cardiology, Tokyo Women's Medical University
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Anderson JL, Adams CD, Antman EM, Bridges CR, Califf RM, Casey DE, Chavey WE, Fesmire FM, Hochman JS, Levin TN, Lincoff AM, Peterson ED, Theroux P, Wenger NK, Wright RS, Smith SC, Jacobs AK, Adams CD, Anderson JL, Antman EM, Halperin JL, Hunt SA, Krumholz HM, Kushner FG, Lytle BW, Nishimura R, Ornato JP, Page RL, Riegel B. ACC/AHA 2007 guidelines for the management of patients with unstable angina/non-ST-Elevation myocardial infarction: a report of the American College of Cardiology/American Heart Association Task Force on Practice Guidelines (Writing Committee to Revise the 2002 Guidelines for the Management of Patients With Unstable Angina/Non-ST-Elevation Myocardial Infarction) developed in collaboration with the American College of Emergency Physicians, the Society for Cardiovascular Angiography and Interventions, and the Society of Thoracic Surgeons endorsed by the American Association of Cardiovascular and Pulmonary Rehabilitation and the Society for Academic Emergency Medicine. J Am Coll Cardiol 2007; 50:e1-e157. [PMID: 17692738 DOI: 10.1016/j.jacc.2007.02.013] [Citation(s) in RCA: 1285] [Impact Index Per Article: 75.6] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
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24
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ACC/AHA 2007 Guidelines for the Management of Patients With Unstable Angina/Non–ST-Elevation Myocardial Infarction: Executive Summary. Circulation 2007. [DOI: 10.1161/circulationaha.107.185752] [Citation(s) in RCA: 150] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
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Anderson JL, Adams CD, Antman EM, Bridges CR, Califf RM, Casey DE, Chavey WE, Fesmire FM, Hochman JS, Levin TN, Lincoff AM, Peterson ED, Theroux P, Wenger NK, Wright RS, Smith SC, Jacobs AK, Halperin JL, Hunt SA, Krumholz HM, Kushner FG, Lytle BW, Nishimura R, Ornato JP, Page RL, Riegel B. ACC/AHA 2007 guidelines for the management of patients with unstable angina/non ST-elevation myocardial infarction: a report of the American College of Cardiology/American Heart Association Task Force on Practice Guidelines (Writing Committee to Revise the 2002 Guidelines for the Management of Patients With Unstable Angina/Non ST-Elevation Myocardial Infarction): developed in collaboration with the American College of Emergency Physicians, the Society for Cardiovascular Angiography and Interventions, and the Society of Thoracic Surgeons: endorsed by the American Association of Cardiovascular and Pulmonary Rehabilitation and the Society for Academic Emergency Medicine. Circulation 2007; 116:e148-304. [PMID: 17679616 DOI: 10.1161/circulationaha.107.181940] [Citation(s) in RCA: 813] [Impact Index Per Article: 47.8] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
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Anderson JL, Adams CD, Antman EM, Bridges CR, Califf RM, Casey DE, Chavey WE, Fesmire FM, Hochman JS, Levin TN, Lincoff AM, Peterson ED, Theroux P, Wenger NK, Wright RS, Smith SC, Jacobs AK, Adams CD, Anderson JL, Antman EM, Halperin JL, Hunt SA, Krumholz HM, Kushner FG, Lytle BW, Nishimura R, Ornato JP, Page RL, Riegel B. ACC/AHA 2007 Guidelines for the Management of Patients With Unstable Angina/Non–ST-Elevation Myocardial Infarction—Executive Summary. J Am Coll Cardiol 2007. [DOI: 10.1016/j.jacc.2007.02.028] [Citation(s) in RCA: 119] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
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Hung MJ, Cheng CW, Yang NI, Hung MY, Cherng WJ. Coronary vasospasm-induced acute coronary syndrome complicated by life-threatening cardiac arrhythmias in patients without hemodynamically significant coronary artery disease. Int J Cardiol 2007; 117:37-44. [PMID: 16844245 DOI: 10.1016/j.ijcard.2006.03.055] [Citation(s) in RCA: 58] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/11/2005] [Revised: 03/12/2006] [Accepted: 03/24/2006] [Indexed: 11/16/2022]
Abstract
BACKGROUND Coronary vasospasm-induced electrical and mechanical complications in patients with acute coronary syndrome and no hemodynamically significant coronary artery disease are rarely reported. METHODS A total of 733 consecutive patients with acute coronary syndrome admitted to our hospital who subsequently underwent coronary angiography at our institution were enrolled. Patients who had documented complete atrioventricular block or ventricular fibrillation, no evidence of hemodynamically significant coronary artery disease on coronary angiogram, and no other (non-coronary) cardiac abnormalities were included. Patients were followed for subsequent cardiac events and mortality. RESULTS Over a 6-year period at our institution, acute coronary syndrome complicated by life-threatening cardiac arrhythmias developed in six patients who had no hemodynamically significant coronary artery disease with corresponding intra-coronary ergonovine provocative coronary vasospasm. Acute myocardial infarction was diagnosed in five of these patients and variant angina pectoris in one. Complete atrioventricular block was the most common complication in these cases, followed by cardiogenic shock with or without right ventricular infarction, ventricular fibrillation, and severe sinus arrest. These complications were corrected with intravenous fluid, intravenous atropine or cardiac defibrillation. During a median follow-up period of 26 months, none of the patients expired or suffered nonfatal reinfarction. Two individuals who did not stop smoking during follow-up developed recurrent angina after self-discontinuation of calcium antagonists. CONCLUSIONS Coronary vasospasm can be a cause of life-threatening cardiac arrhythmias in patients with acute coronary syndrome and no hemodynamically significant coronary artery disease. Coronary angiography with/without intra-coronary ergonovine testing is necessary in acute coronary syndrome patients to identify the underlying pathology and establish appropriate treatment in these cases.
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Affiliation(s)
- Ming-Jui Hung
- Section of Cardiology, Department of Medicine, Chang Gung Memorial Hospital at Keelung Chang Gung University College of Medicine, 222 Mai-Chin Road, Keelung 204, Taiwan.
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Mirza I, Orr W, Porto I. A case of multivessel coronary artery spasm resulting in wandering ST segment elevation. Int J Cardiol 2006; 109:121-4. [PMID: 16413072 DOI: 10.1016/j.ijcard.2005.03.066] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/20/2005] [Accepted: 03/26/2005] [Indexed: 11/23/2022]
Abstract
We describe a case of recurrent episodes of resting myocardial ischaemia associated with ST elevation on ECG in different territories. Multivessel coronary artery spasm was demonstrated that was reversed with intracoronary glycerine trinitrate.
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Sueda S, Kohno H, Fukuda H, Ochi N, Kawada H, Hayashi Y, Uraoka T. Frequency of provoked coronary spasms in patients undergoing coronary arteriography using a spasm provocation test via intracoronary administration of ergonovine. Angiology 2004; 55:403-11. [PMID: 15258686 DOI: 10.1177/000331970405500407] [Citation(s) in RCA: 73] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
There are no data concerning the incidence of provoked coronary arterial spasms via intracoronary administration of ergonovine (ER). This study sought to establish the incidence of spasms due to intracoronary injection of ER in Japanese patients who underwent coronary angiography. The subjects were 596 consecutive patients (369 men, mean age 64.2 +/- 10.3 years) who were studied with a selective ER test. ER was administered in total doses of 40 microg into the right coronary artery and 64 microg into the left coronary artery. A positive spasm was defined as a total or subtotal occlusion. Coronary vasospasms were determined in 173 patients (29.0%). Spasms occurred often in patients with ischemic heart disease (43.3%); during effort and rest in patients with angina (46.3%), exertional angina (27.7%), recent myocardial infarction (36.7%), healed myocardial infarction (34.1%), and especially in patients with rest angina (55.5%), but were relatively uncommon in patients with nonischemic heart disease (3.7%). The incidence of provoked coronary spasms in this study was 2.2-2.6 times higher than in previous reports with intravenous ER administration. More spasms were superimposed on significant atherosclerotic lesions than on nonfixed atherosclerotic lesions (42.8% vs 24.0%, p < 0.01). No serious or irreversible complications were observed in this study. In conclusion, intracoronary administration of ER was a safe and reliable test. Compared with Caucasian patients, in Japanese patients, coronary arterial spasms occurred 2-3 times more frequently with various cardiac disorders.
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Affiliation(s)
- Shozo Sueda
- Department of Cardiology, Saiseikai Saijo Hospital, Saijo City, Ehime, Japan
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Sueda S, Kohno H, Fukuda H, Uraoka T. Coronary flow reserve in patients with vasospastic angina: correlation between coronary flow reserve and age or duration of angina. Coron Artery Dis 2003; 14:423-9. [PMID: 12966262 DOI: 10.1097/00019501-200309000-00002] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
OBJECTIVES This study sought to assess the coronary flow reserve (CFR) in patients with pure vasospastic angina (VSA). METHODS AND RESULTS The phasic flow velocities of both spasm-positive and spasm-negative coronary arteries of the left anterior descending artery (LAD) were recorded at rest and during hyperaemia (50 microg of adenosine triphosphate infusion intracoronary) using a 0.014 inch, 15 MHz Doppler guide wire in 42 patients with pure VSA and acetylcholine (ACh)-induced coronary artery spasms (20-100 microg), and 23 controls with normal coronary arteries without ACh-induced vasospasm. These 42 patients had 16 vessels with focal spasms (>99%), 17 vessels with diffuse spasms (>90%) in the LAD, and nine vessels with ACh-induced spasms in the right coronary artery, but not the LAD. Coronary flow reserve was obtained from the ratio of the hyperaemic/baseline time-averaged peak velocity. Coronary flow reserve did not differ between patients with VSA and the controls (2.9+/-0.8 versus 3.2+/-0.7, NS). Moreover, CFR did not differ among the four cases (focal: 2.8+/-0.7; diffuse: 3.0+/-0.9; non spasm: 2.9+/-0.7 versus controls: 3.2+/-0.7, respectively, NS). Coronary flow reserve in vessels with proximal spasms was significantly higher than that in vessels with mid or distal spasms (3.4+/-0.8 versus 2.6+/-0.6, 2.6+/-0.9, p<0.05). The only significant correlation was between CFR and age (p=0.0275) or the duration of angina before admission (p=0.0405). CONCLUSIONS There was no difference in CFR in patients with ACh-induced spasms between the spasm-positive and spasm-negative vessels. Moreover, CFR was maintained normally in vessels with diffuse spasms, as in those with focal spasms. The most important determinant factors for CFR in patients with VSA were age and the duration of angina before admission.
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Affiliation(s)
- Shozo Sueda
- Department of Cardiology, Saiseikai Saijo Hospital, Tsuitachi 269-1, Saijo City, Ehime Prefecture 793-0027, Japan.
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Abstract
We evaluated coronary stenting in nine patients with clinically severe, angiographically documented spasm refractory to aggressive pharmacologic management. No patient subsequently developed unstable ischemia requiring hospitalization as a consequence of recurrent spasm within the stent. Mechanisms of therapeutic failure included both persistent spasm and spasm in a different artery in one patient. Restenosis occurred in three patients who subsequently underwent repeat revascularization. In the rare, carefully selected patient, stents may represent an adjunct in the management of focal coronary artery spasm, although currently medical therapy remains the standard initial approach.
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Braunwald E, Antman EM, Beasley JW, Califf RM, Cheitlin MD, Hochman JS, Jones RH, Kereiakes D, Kupersmith J, Levin TN, Pepine CJ, Schaeffer JW, Smith EE, Steward DE, Theroux P, Alpert JS, Eagle KA, Faxon DP, Fuster V, Gardner TJ, Gregoratos G, Russell RO, Smith SC. ACC/AHA guidelines for the management of patients with unstable angina and non-ST-segment elevation myocardial infarction. A report of the American College of Cardiology/American Heart Association Task Force on Practice Guidelines (Committee on the Management of Patients With Unstable Angina). J Am Coll Cardiol 2000; 36:970-1062. [PMID: 10987629 DOI: 10.1016/s0735-1097(00)00889-5] [Citation(s) in RCA: 561] [Impact Index Per Article: 23.4] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
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Ueda O, Kohchi K, Kishi Y, Numano F. Long lasting spasticity in controlled vasospastic angina. HEART (BRITISH CARDIAC SOCIETY) 1999; 81:528-32. [PMID: 10212173 PMCID: PMC1729030 DOI: 10.1136/hrt.81.5.528] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
OBJECTIVE To evaluate changes in coronary artery spasticity in patients with vasospastic angina who had been stable for years under continuous drug treatment. METHODS Follow up coronary angiography was performed under intracoronary ergonovine provocation in 27 well controlled patients with vasospastic angina and no organic stenosis; the tests were done > 24 months after the initial coronary angiography, in which occlusive spasm had been induced by the same regimen of ergonovine provocation. RESULTS The mean (SD) follow up period was 47.2 (21.6) months. All patients had been free from angina attack for more than 24 months under treatment with antianginal drugs. During this follow up period, organic stenosis developed in only one case. Occlusive spasm was observed during follow up coronary angiography in 23 patients. Spasm with 90% narrowing was observed in three other patients, and diffuse significant narrowing was seen in the final patient. No significant difference was found in spasticity (p = 0.75) between the initial and the follow up tests. CONCLUSIONS Repeated ergonovine provocation during coronary angiography after a controlled period of several years showed that coronary spasm remains inducible in most patients. Discontinuance of drug treatment during the remission from anginal attacks achieved by medication may put the patient at high risk.
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Affiliation(s)
- O Ueda
- Department of Cardiology, Chiba Tokushukai Hospital, 1-27-1 Narashinodai, Funabashishi, Chiba 274 8503, Japan
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Abstract
Coronary spasms are defined as reversible coronary stenosis, which limits coronary blood flow under resting conditions. The demonstration of either spontaneous or provoked coronary spasm proves coronary hypercontractility and thus the diagnosis of variant angina. Several stimuli can provoke coronary vasospasm, but the highest sensitivity and specificity has been shown with ergonovine. Alternatively acetylcholine or with less sensitivity, but high specificity, hyperventilation may be employed. Typically coronary vasospasm presents with angina pectoris at rest; the manifestation with myocardial infarction or syncope are of great clinical importance. The prevalence of the disease is unknown due to the rarely performed provocation tests in Western countries. The incidence of positive test results strongly depends on the symptoms of the patients; from 0% in patients without any evidence for myocardial ischemia up to 54% in patients with typical angina at rest have been observed. Coronary vasospasm is closely related to atherosclerotic coronary artery disease, since intravascular ultrasound studies reveal atherosclerotic plaques in almost any spastic segment. Risk factors for coronary artery disease and coronary vasospasm, however, differ profoundly. For the latter cigarette smoking is the only established risk factor. Although several candidates and predisposing factors (serotonin, histamine, thromboxane, endothelin) have been described, the mediators and the pathogenesis of the disease remains unknown. Endothelial dysfunction alone is not sufficient to explain the features of variant angina. Some evidence supports the hypothesis of local inflammation. The mortality in variant angina depends on the extent of the coronary artery disease. Pure coronary vasospasm does not lead to increased mortality; patients with highly active disease presenting with syncope may have an increased risk. Medical treatment should include long-acting calcium antagonists or nitrates, beta-blockers may even favor the occurrence of ischemic attacks. Although the benefit has not been proven, the use of aspirin may considered in highly active disease.
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Affiliation(s)
- W Auch-Schwelk
- Medizinische Klinik IV (Kardiologie/Nephrologie), Klinikum der Johann-Wolfgang-Goethe-Universität Frankfurt.
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Ozaki Y, Violaris AG, Kobayashi T, Keane D, Camenzind E, Di Mario C, de Feyter P, Roelandt JR, Serruys PW. Comparison of coronary luminal quantification obtained from intracoronary ultrasound and both geometric and videodensitometric quantitative angiography before and after balloon angioplasty and directional atherectomy. Circulation 1997; 96:491-9. [PMID: 9244217 DOI: 10.1161/01.cir.96.2.491] [Citation(s) in RCA: 40] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
BACKGROUND Debate exists regarding the relationship between angiographic and intracoronary ultrasound (ICUS) measurements of minimal luminal cross-sectional area after coronary intervention. We investigated this and the factors that may influence it by using ICUS and quantitative angiography. METHODS AND RESULTS Patients who underwent successful balloon angioplasty (n=100) or directional atherectomy (n=50) were examined by using ICUS and quantitative angiography (edge-detection [ED] and videodensitometry [VID]) before and after intervention. Luminal damage postintervention was qualitatively graded into three categories based on angiographic results (smooth lumen, haziness, or dissection). Correlation of minimal luminal cross-sectional area measurements by ICUS and ED was .59 before and .47 after balloon angioplasty. Correlation between ICUS and VID was .50 before and .63 after balloon angioplasty. Postintervention, the difference between ICUS and VID was less than the difference between ICUS and ED (P<.01). Additionally, the correlation was .74 between ICUS and ED measurements and .78 between ICUS and VID measurements in the smooth lumen group, .46 and .63, respectively, in the presence of haziness, and .26 and .46, respectively, in lesions with dissection. Similar results were obtained after directional atherectomy: the agreement between ICUS and quantitative angiography deteriorated according to the degree of vessel damage, but less so with VID than ED. CONCLUSIONS Complex morphological changes induced by intervention may contribute to discordance between the two quantitative imaging techniques. In the absence of ICUS, VID may be a complementary technique to ED in lesions with complex morphology after balloon angioplasty and directional atherectomy.
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Affiliation(s)
- Y Ozaki
- Angiographic Research Laboratory, Thoraxcenter, Erasmus University, Rotterdam, Netherlands
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Ozaki Y, Serruys PW. Recent progress in coronary interventions--assessment by quantitative coronary angiography. JAPANESE CIRCULATION JOURNAL 1997; 61:1-13. [PMID: 9070954 DOI: 10.1253/jcj.61.1] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
Coronary balloon angioplasty is now well accepted as an effective therapy for patients with significant coronary artery stenosis. However, a number of deficiencies, including short-term complications, long-term restenosis, and limited application to complex morphologic lesions, restrict the widespread use of this technique. The precise lesion measurement provided by quantitative coronary angiography and intracoronary ultrasonography is a prerequisite for the optimization of balloon dilation or stent implantation. The short-term outcome may be improved by stent implantation, as this can prevent acute closure by acting as a scaffold for the disrupted vessel wall. The indications for percutaneous revascularization have been extended to chronic total occlusion by using a special guidewire, a laser wire and a coronary stent. Local drug delivery techniques to distribute agents to target revascularization sites may play a role in reducing the restenosis rate. Although the limitations of balloon angioplasty have led to the introduction of new devices, it remains to be seen whether these new devices can demonstrate, in a scientific manner, their safety, feasibility and superiority over conventional balloon angioplasty. Percutaneous coronary revascularization therapy may be an acceptable alternative to coronary bypass surgery in the future. However, to confirm this, a large multicenter randomized study is necessary to compare new percutaneous coronary interventional devices with bypass surgery. Additionally, further studies are required to demonstrate the most effective device for treating specific lesions in each individual patient.
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Affiliation(s)
- Y Ozaki
- Catheterisation Laboratory, Erasmus University, Rotterdam, The Netherlands
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Ozaki Y, Violaris AG, Hamburger J, Melkert R, Foley D, Keane D, de Feyter P, Serruys PW. Short- and long-term clinical and quantitative angiographic results with the new, less shortening Wallstent for vessel reconstruction in chronic total occlusion: a quantitative angiographic study. J Am Coll Cardiol 1996; 28:354-60. [PMID: 8800109 DOI: 10.1016/0735-1097(96)00155-6] [Citation(s) in RCA: 24] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
OBJECTIVES This study was designed to examine whether oversized implantation of the new, less shortening Wallstent provides a more favorable long-term clinical and angiographic outcome in chronic total occlusions than does conventional coronary balloon angioplasty. BACKGROUND Restenosis and reocclusion remain major limitations of balloon angioplasty for chronic total occlusions. Enforced mechanical remodeling by implantation of the oversized Wallstent may prevent elastic recoil and improve accommodation of intimal hyperplasia. METHODS Lumen dimension was measured by a computer-based quantitative coronary angiography system (CAAS II). These measurements (before and after intervention and at 6-month follow-up) were compared between the groups with Wallstent implantation (20 lesions, 20 patients) and conventional balloon angioplasty (266 lesions, 249 patients) for treatment of chronic total occlusion. Acute gain (minimal lumen diameter after intervention minus that before intervention), late loss (minimal lumen diameter after intervention minus that at follow-up) and net gain (acute gain minus late loss) were examined. RESULTS Wallstent deployment was successful in all patients. High pressure intra-Wallstent balloon inflation (mean +/- SD 14 +/- 3 atm) was performed in all lesions. Although vessel size did not differ between the Wallstent and balloon angioplasty groups, acute gain was significantly greater in the Wallstent group (2.96 +/- 0.55 vs. 1.61 +/- 0.34 mm, p < 0.0001). Although late loss was also significantly larger in the Wallstent group (0.81 +/- 0.95 vs. 0.43 +/- 0.68 mm, p < 0.05), net gain was still significantly greater in this group (2.27 +/- 1.00 vs. 1.18 +/- 0.69 mm, p < 0.0001). Angiographic restenosis (> or = 50% diameter stenosis) occurred at 6 months in 29% of lesions in the Wallstent group and in 45% of those in the balloon angioplasty group (p = 0.5150). CONCLUSIONS Implantation of the oversized Wallstent, with full coverage of the lesion length, ensures resetting of the vessel size to its original caliber before disease and allows greater accommodation of intimal hyperplasia and chronic vessel recoil. Wallstent implantation provides a more favorable short- and long-term clinical and angiographic outcome than does conventional balloon angioplasty for chronic total occlusions.
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Affiliation(s)
- Y Ozaki
- Catheterization Laboratory, Erasmus University, Rotterdam, The Netherlands
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Ozaki Y, Keane D, Ruygrok P, van der Giessen WJ, de Feyter P, Serruys PW. Six-month clinical and angiographic outcome of the new, less shortening Wallstent in native coronary arteries. Circulation 1996; 93:2114-20. [PMID: 8925579 DOI: 10.1161/01.cir.93.12.2114] [Citation(s) in RCA: 35] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
BACKGROUND The new, less shortening, self-expanding Wallstent is characterized by longitudinal flexibility, a protective membrane, a low profile, and a customized range of diameters (3.5 to 6.0 mm). The recent modification of the braiding angle of the Wallstent has resulted in a new device with less shortening on expansion and a concomitant reduction in radial force. We hypothesized that the enforced mechanical remodeling produced by the selection of an oversized Wallstent might result in improved accommodation of subsequent reactive intimal hyperplasia and prevention of chronic recoil of the vessel. METHODS AND RESULTS To prove this hypothesis, we recently implanted 44 new, less shortening Wallstents in 35 native coronary arteries in 35 patients with acute or threatened closure after balloon angioplasty, according to a strategy of oversizing of Wallstent diameter and complete coverage of the lesion length. The initial and 6-month follow-up angiograms were analyzed with a computer-based quantitative coronary angiography (QCA) system. Acute gain (minimal luminal diameter [MLD] post minus MLD pre) and late loss (MLD post minus MLD at follow-up) were examined. Stent deployment was successful in 44 of 44 attempts (100%). Nominal stent diameter used was 1.40 mm larger than the maximal vessel diameter. One patient (3%) with a dilated but unstented lesion proximal to the stented segment sustained a subacute occlusion on day 1 associated with myocardial infarction. Event-free survival at 30 days after stent implantation was 97% (34 of 35 patients). Of the 34 patients eligible for 6-month angiographic follow-up, 3 who were asymptomatic declined repeat angiography. MLD (and percent diameter stenosis [% DS]) changed from 0.83 +/- 0.50 mm (72%) pre through 3.06 +/- 0.48 mm (15%) post to 2.27 +/- 0.74 mm (28%) at follow-up. Acute gain was 2.23 +/- 0.63 mm, and late loss was 0.78 +/- 0.61 mm. Angiographic restenosis ( > 50% DS) was observed in 5 of 31 patients (16%) at 6 months, all of whom underwent repeat angioplasty. Thus, the overall event-free survival at 6-month follow-up was 83% (29 of 35 patients). CONCLUSIONS The oversized Wallstent implantation with complete coverage of the lesion length conveyed a favorable 6-month clinical and angiographic outcome. The large acute gain obtained by the Wallstent afforded greater accommodation of the subsequent late loss. The enforced mechanical remodeling by oversized new Wallstents may result in prevention of acute and chronic recoil of the vessel wall and subsequently a lower restenosis rate at follow-up.
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Affiliation(s)
- Y Ozaki
- Catheterization Laboratory, Erasmus University, Rotterdam, Netherlands
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