scholarly journals Myocardial Bridging Unmasks as an Acute Coronary Syndrome from Dehydration

2021 ◽  
Vol 2021 ◽  
pp. 1-4
Author(s):  
Naji Maaliki ◽  
Michael Omar ◽  
Aleem Azal Ali ◽  
Amy Roemer ◽  
Jose Ruiz ◽  
...  
Keyword(s):  
Acute Coronary Syndrome ◽  
Coronary Artery ◽  
Heart Catheterization ◽  
Long Term Effects ◽  
Myocardial Bridging ◽  
St Segment Elevation ◽  
Coronary Syndrome ◽  
St Segment ◽  
Coronary Artery Segment ◽  
Atherosclerosis Treatment

A 50-year-old male presented for loss of consciousness. He was initially treated with intravenous epinephrine and fluids, and an electrocardiogram (ECG) displayed an ST-segment elevation in lead aVR with global ST-segment depressions. A subsequent left heart catheterization revealed that the middle segment of the left anterior descending artery (LAD) demonstrated severe stenosis during systole but would become patent during diastole, which was suggestive of myocardial bridging. After stopping the epinephrine and increasing the fluid infusion, the ECG changes rapidly resolved. The patient had later admitted to significant dehydration all day. Myocardial bridging is a congenital anomaly in which a coronary artery segment courses through the myocardium instead of the usual epicardial surface. Occasionally, myocardial bridging may present similarly to acute coronary syndrome in severe dehydration or hyperadrenergic states. The diagnosis can be made through coronary angiography, which reveals a dynamic vessel obstruction pattern corresponding with the cardiac cycle. Long-term effects may also include accelerated atherosclerosis. Treatment consists of reversing precipitating causes during acute presentations and decreasing the risk of coronary artery disease on a chronic basis.

scholarly journals MI with Non-obstructive Coronary Artery Presenting with STEMI: A Review of Incidence, Aetiology, Assessment and Treatment

2020 ◽  
Vol 15 ◽  
Author(s):  
Ying X Gue ◽  
Rahim Kanji ◽  
Sabiha Gati ◽  
Diana A Gorog
Keyword(s):  
Acute Coronary Syndrome ◽  
Coronary Artery ◽  
Correct Diagnosis ◽  
Correct Treatment ◽  
St Segment Elevation ◽  
Coronary Syndrome ◽  
Plaque Disruption ◽  
Methodical Approach ◽  
St Segment ◽  
Assessment And Treatment

MI with non-obstructive coronary artery (MINOCA) is a condition previously thought to be benign that has recently been shown to have comparable mortality to that of acute coronary syndrome with obstructive coronary disease. The heterogeneity of the underlying aetiology makes the assessment, investigation and treatment of patients with MINOCA challenging. The majority of patients with MINOCA presenting with ST-segment elevation MI generally have an underlying coronary or myocardial cause, predominantly plaque disruption or myocarditis. In order to make the correct diagnosis, in addition to the cause of the presentation, a meticulous and methodical approach is required, with targeted investigations. Stratification of patients to guide investigations that are more likely to provide the diagnosis will allow the correct treatment to be initiated promptly. In this article, the authors review the contemporary incidence, aetiology, recommended assessment and treatment of patients with MINOCA presenting with ST-segment elevation MI.

scholarly journals Extensively Thrombosed Ectatic Circumflex Coronary Artery Fistula Presenting as Acute Coronary Syndrome

2019 ◽  
Vol 15 (4) ◽  
pp. 316-319
Author(s):  
Nooraldaem Yousif ◽  
Mohammady Shahin ◽  
Robert Manka ◽  
Slayman Obeid
Keyword(s):  
Acute Coronary Syndrome ◽  
Coronary Artery ◽  
Coronary Artery Fistula ◽  
Circumflex Artery ◽  
St Segment Elevation ◽  
Clear Cut ◽  
Coronary Syndrome ◽  
St Segment ◽  
Previous Medical History

Background: Coronary artery fistula (CAF) is an abnormal communication between the termination of a coronary artery or its branches and a cardiac chamber, a great vessel or other vascular structure. Symptomatic patients with large CAF should undergo surgical or percutanous closure of the fistula at the drainage site while still the debate on closing asymptomatic CAF and reopening symptomatic occluded CAF is ongoing. Case Summary: We are reporting a 30-year-old male patient with no previous medical history presented as non-ST segment elevation myocardial Infarction. Coronary angiography showed an entirely thrombosed ectatic circumflex artery with a suspicion of thrombosed coronary arterial fistula. In view of the ongoing ischemia in the setting of acute coronary syndrome; we tried to open percutaneously but all efforts were to no avail. Discussion: In this case report, we are sharing our experience in the management of this challenging case in view of the rarity of such peculiar clinical condition and the unfavourable presentation along with the lack of clear-cut Guideline and Consensus whether to/not to open such huge and immensely thrombosed symptomatic coronary artery fistula as well as the dilemma of choosing the best long-term medical treatment between antiplatelets vs anticoagulants in such young patient.

scholarly journals Long-term results of different approaches to revascularization in non-ST-segment elevation acute coronary syndrome and multiple coronary atherosclerosis

2017 ◽  
Vol 89 (4) ◽  
pp. 29-34 ◽  
Author(s):  
V I Ganyukov ◽  
R S Tarasov ◽  
Yu N Neverova ◽  
N A Kochergin ◽  
O L Barbarash ◽  
...  
Keyword(s):  
Acute Coronary Syndrome ◽  
Coronary Artery ◽  
Medical Treatment ◽  
Coronary Atherosclerosis ◽  
Long Term Results ◽  
St Segment Elevation ◽  
Coronary Syndrome ◽  
St Segment

Aim. To assess the long-term results of different approaches to treating patients with non-ST-segment elevation acute coronary syndrome (NSTE ACS) and multivessel coronary artery disease (MVCAD). Subjects and methods. A total of 150 patients with NSTE ACS, in whom coronary angiography revealed MVCAD, were examined. The patients were divided into 3 groups according to the selected treatment policy: 1) percutaneous coronary intervention (PCI) (n=91 (60.6%)); 2) coronary artery bypass grafting (CABG) (n=40 (26.6%)); and 3) only medical treatment (n=9 (6%)). The mean follow-up was 27.6±3.5 months. Results. The medical treatment policy in this patient sample demonstrates the worst results, with the majority of cardiovascular events developing in the hospital period. PCI in patients with NSTE ACS and multiple coronary atherosclerosis has a number of objective limitations in this patient sample, leading to suboptimal treatment outcomes Conclusion. The use of CABG or PCI as a myocardial revascularization technique in patients with NSTE ACS and MVCAD is characterized by a comparable satisfactory survival in the hospital and long-term follow-up periods. 12% of patients do not receive revascularization due to the extremely high risk from any of coronary blood restoring methods, which results in very many deaths largely occurring during the hospital period.

scholarly journals Timing of dual antiplatelet therapy in acute coronary syndrome: a problem of coronary artery bypass grafting accessibility for patients

2020 ◽  
Vol 25 (8) ◽  
pp. 3812
Author(s):  
T. S. Golovina ◽  
Yu. N. Neverova ◽  
R. S. Tarasov
Keyword(s):  
Acute Coronary Syndrome ◽  
Coronary Artery ◽  
Antiplatelet Therapy ◽  
Coronary Artery Bypass ◽  
Dual Antiplatelet Therapy ◽  
Artery Bypass ◽  
St Segment Elevation ◽  
Coronary Syndrome ◽  
St Segment ◽  
Elevation Acute Coronary Syndrome

The feasibility of dual antiplatelet therapy as early as possible in patients with ST-segment elevation acute coronary syndrome, where percutaneous coronary intervention is recommended, has been proven: it improves treatment outcomes by reducing the risk of adverse ischemic events, including stent thrombosis and myocardial infarction.This article provides a detailed analysis of the evidence data and current recommendations on the validity and timing of dual antiplatelet therapy for acute coronary syndrome. The emphasis is made on the controversy regarding the early dual antiplatelet therapy in non-ST-segment elevation acute coronary syndrome. The rationale for using dual antiplatelet therapy only after coronary angiography and determining the revascularization strategy is described, which should increase the accessibility of coronary artery bypass graft surgery for patients.

Relation of vascular dilator function and cardiac autonomic function with coronary angiography findings in patients with non-ST segment elevation acute coronary syndrome

2020 ◽  
pp. 204887262091871
Author(s):  
Gaetano Antonio Lanza ◽  
Eleonora Ruscio ◽  
Gessica Ingrasciotta ◽  
Tamara Felici ◽  
Monica Filice ◽  
...  
Keyword(s):  
Coronary Artery Disease ◽  
Acute Coronary Syndrome ◽  
Coronary Artery ◽  
Obstructive Coronary Artery Disease ◽  
Cardiac Autonomic Function ◽  
St Segment Elevation ◽  
Coronary Syndrome ◽  
St Segment ◽  
Elevation Acute Coronary Syndrome ◽  
Artery Disease

Background A sizeable number of patients with a diagnosis of non-ST segment elevation acute coronary syndrome show non-obstructive coronary artery disease. In this study we assessed whether differences in vascular and cardiac autonomic function exist between non-ST segment elevation acute coronary syndrome patients with obstructive or non-obstructive coronary artery disease. Methods and results Systemic endothelium-dependent and independent vascular dilator function (assessed by flow-mediated dilation and nitrate-mediated dilation of the brachial artery, respectively) and cardiac autonomic function (assessed by time-domain and frequency-domain heart rate variability parameters) were assessed on admission in 120 patients with a diagnosis of non-ST segment elevation acute coronary syndrome. Patients were divided into two groups according to coronary angiography findings: (a) 59 (49.2%) with obstructive coronary artery disease (≥50% stenosis in any epicardial arteries); (b) 61 (50.8%) with non-obstructive coronary artery disease. No significant differences between the two groups were found in both flow-mediated dilation (5.03 ± 2.6 vs. 5.40 ± 2.5%, respectively; P = 0.37) and nitrate-mediated dilatation (6.79 ± 2.8 vs. 7.30 ± 3.4%, respectively; P = 0.37). No significant differences were also observed between the two groups both in time-domain and frequency-domain heart rate variability variables, although the triangular index tended to be lower in obstructive coronary artery disease patients (30.2 ± 9.5 vs. 33.9 ± 11.6, respectively; P = 0.058). Neither vascular nor heart rate variability variables predicted the recurrence of angina, requiring emergency room admission or re-hospitalisation, during 11.3 months of follow-up. Conclusions Among patients admitted with a diagnosis of non-ST segment elevation acute coronary syndrome we found no significant differences in systemic vascular dilator function and cardiac autonomic function between those with obstructive coronary artery disease and those with non-obstructive coronary artery disease.

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