Echocardiography-A Journal of Cardiovascular Ultrasound and Allied Tec

Article	Citations
	44
Issue Information	36
	33
Issue Information	25
Cardiac remodeling after atrial septal defects device closure	24
Issue Information	24
A case of fetal isolated ventricular noncompaction with TNNT2 gene mutation and literature review	24
Evaluation of left ventricular function and myocardial deformation in children with beta‐thalassemia major by real‐time three‐dimensional (four‐dimensional) and speckle tracking echocardiography	20
Incidence, persistence, and clinical relevance of iatrogenic atrial septal defects after percutaneous left atrial appendage occlusion	20
The relationship between ascending aortic diameter with left atrial functions and left ventricular mass index in a population with normal left ventricular systolic function	19
Left atrial functional measurements’ utility in predicting long‐term risk of atrial fibrillation after isolated CABG	18
Quantitative evaluation of fetal ventricular function by speckle tracking echocardiography	16
Native mitral valve staphylococcus endocarditis with a very unusual complication: Ruptured posterior mitral valve leaflet aneurysm	15
Hydatid cyst of papillary muscle concomitant with brain involvement	14
Mitral valve Doppler for cardiac output assessment in preterm neonates	14
Recurrent Cardiac Tamponade by Pulmonary Artery Intimal Sarcoma	13
Simple but useful: DI in the assessment of patients with aortic stenosis	13
Issue Information	13
Adult Patient With Systolic Murmur: An Unexpected Diagnosis of Congenital Heart Disease	11
Follow‐Up Study of Percutaneous Intramyocardial Septal Radiofrequency Ablation in the Treatment of Hypertrophic Obstructive Cardiomyopathy With HFpEF	11
Issue Information	10
Multimodality Imaging in the Management of Tricuspid Valve Regurgitation	10
Cover image	10
Assessment of Left Ventricular Functional Impairment in Patients With Chronic Kidney Disease Using Three‐Dimensional Speckle Tracking Imaging	10
A rare combination of correct transposition of the great arteries and isolated levocardia: Imaging characterization	10

Multi‐Modality Imaging in Coronary Anomalies: Focus on Anomalous Aortic Origin of Coronary Arteries	10
Left atrial reservoir longitudinal strain and its incremental value to the left ventricular global longitudinal strain in predicting anthracycline‐induced cardiotoxicity	9
The relationship between echocardiographic parameters and albumin bilirubin (ALBI) score in patients with isolated secundum type atrial septal defect	9
Echocardiographic estimation of left ventricular filling pressure in atrial fibrillation using left atrial strain: Ready for practical use?	9
Screening for the prevalence of rheumatic heart disease among school children in Egypt	9
Transthoracic echocardiographic Doppler metrics in evaluating bioprosthetic tricuspid valve dysfunction	9
Williams‐Beuren syndrome associated with hammock mitral valve: First case report	9
Modeling of multiple atrial septal defects with inferior vena cava rim deficiency: Three‐dimensional visualization of the rim based on transthoracic echocardiographic imaging	9
Clinically atypical abdominal manifestation of the lipoma localized in the right atrium: “Invagination hypothesis” revisited	8
Mechanisms and implications of mitral regurgitation in patients with severe aortic stenosis who received transcatheter aortic valve replacement	8
Importance of Detecting Valvular Invasion in the Patient With Rheumatoid Arthritis	8
Prevalence and prognostic importance of lung ultrasound findings in acute coronary syndrome: A systematic review	8
Cardiac Magnetic Resonance Imaging and Coronary Computed Tomography Angiography in Cardiomyopathy: Diagnostic and Prognostic Insights	8
Ultrasonographic measurements of femoral vessel diameter in neonates weighing less than 2.5 kg	8
Left ventricular global longitudinal strain in COVID‐19 recovered patients	8
Cardiac remodeling in patients with centrifugal left ventricular assist devices assessed by serial echocardiography	8
Interrater reproducibility of the 2016 American society of echocardiography left ventricular diastolic function guidelines	8
Unveiling cardiac insights: Exploring early left ventricular dysfunction in polycythemia vera through 4D‐STE and fragmented QRS analysis	8
Left Atrial Function Correlates With Fibrosis in Pediatric Heart Transplant Recipients	8
“Bronchogenic cyst impersonating a pericardial lesion”: A case report	7
A systematic approach for transcatheter mitral valve edge‐to‐edge repair of isolated commissure prolapse	7
Prognostic Value of Advanced Echocardiography in Patients with Ischemic Heart Disease: A Comprehensive Review	7
Efficacy and Safety of Transthoracic Versus Transesophageal Echocardiography for Monitoring Closure of Atrial or Ventricular Septal Defects: A Systematic Review and Meta‐Analysis	7
Comparing Echocardiographic Strain Imaging in Cardiac Amyloid and End‐Stage Renal Disease Patients	7
Current impact of three‐dimensional echocardiography	7
Predicting new onset atrial fibrillation post acute myocardial infarction: Echocardiographic assessment of left atrial size	7
Atrial Adaptations and Total Cardiac Volume in Athletes	7
The Role of Cardiac Magnetic Resonance Imaging in Distinguishing the Athlete's Heart From Hypertrophic Cardiomyopathy–A Brief Literature Review	7
Prenatally diagnosed left atrial appendage aneurysm with various postnatal imaging investigations: A case report	7
Prognostic significance of left atrial strain in sarcomere gene variant carriers without hypertrophic cardiomyopathy	7
Targeting left atrial dysfunction: A new way to prevent cardiovascular disease?	7
Early Detection of Left Ventricular Dysfunction With Machine Learning‐Based Strain Imaging in Aortic Stenosis Patients	7
Fetal Cardiac Function and Remodeling in In Vitro Fertilization Pregnancies: A Tertiary Center Experience	7
Cardiac Magnetic Resonance Imaging in Immune Checkpoint Inhibitor–Related Myocarditis	6
Acute changes in cardiac dimensions, function, and longitudinal mechanics in healthy individuals with and without high‐altitude induced pulmonary hypertension at 4559 m	6
A rare case of severe tricuspid regurgitation caused by TIPS stent migrating into the right atrium	6
Role of Cardiac Imaging in Myocardial Infarction With Non‐Obstructive Coronary Arteries	6
Unicommissural unicuspid aortic valve (UAV) presenting as ascending aortic aneurysm with aortic dissection	6
Prenatal diagnosis of fetal inferior vena cava malformation using HDlive flow combined with spatiotemporal image correlation	6
A one‐day focused cardiac ultrasound training has a limited impact on residents’ abilities to visually assess right ventricular dimensions and function	6
	6
Left ventricular aneurysm versus pseudoaneurysm: Diagnosis in the era of multi‐modality imaging and 3D‐printing	6
Post‐cardioversion atrial stunning – Not to be forgotten	6
Incremental prognostic value of speckle tracking echocardiography and early follow‐up echo assessment in predicting left ventricular recovery after reperfusion for ST‐segment elevation myocardial infa	6
Review of speckle tracking analysis to measure the size, shape, and contractility of the fetal heart in fetuses with congenital heart defects	6
A comparison of intracardiac echocardiography and transesophageal echocardiography for guiding device closure of ostium secundum atrial septal defect: A 15‐year experience	6
Reference Ranges of Left Ventricular Global Longitudinal Strain by Contemporary Vendor‐Neutral Echocardiography Software in Healthy Subjects	6
Predictors of post‐operative left atrioventricular valve regurgitation in pediatric patients with complete atrioventricular canal defects	6
Rare presentation of transposition of great arteries and total anomalous pulmonary venous connection in an 18‐year‐old	6
	6

The effects of catheter ablation of outflow tract premature ventricular complexes on atrial electromechanical delay	6
Agenesis of the venous duct with abnormal return of the umbilical vein into the superior vena cava: A case report	6
A case of unicuspid aortic valve with hidden subaortic ridge	6
Successful valve‐in‐valve transcatheter intervention to treat severe stenosis of a 38‐year‐old tricuspid bioprosthesis	6
Rheumatoid Inflammation Causing Aortic Valve Perforation	6
Cardiac magnetic resonance imaging in the evaluation and management of mitral valve prolapse – a comprehensive review	6
Echocardiography in Endocarditis	6
	6
Echo‐Doppler measures of right ventricular systolic function are affected by reduced left ventricular systolic function	6
Prominent para‐cardiac fat mimicking left atrial appendage thrombus on echocardiography: Utility of cardiac computed tomography	6
Prevalence and predictors of left atrial appendage inactivity in patients of rheumatic mitral stenosis in sinus rhythm: An observational study	6
Sub‐aortic membrane – A three‐dimensional echocardiographic perspective	6
Progression of cardiac structure and function in people with human immunodeficiency virus	6
The role of myocardial work in evaluating coronary microcirculation of STEMI patients after percutaneous coronary intervention	6
Risk Stratification of Left Ventricle Hypertrabeculation Versus Non‐Compaction Cardiomyopathy Using Echocardiography, Magnetic Resonance Imaging, and Cardiac Computed Tomography	5
Size and Function of the Right Atrium in Healthy Children by Three‐Dimensional Echocardiography	5
Issue Information	5
Valve It Right? Can Transthoracic Imaging Prevent CIED‐Induced Tricuspid Regurgitation?	5
Myocarditis as a trigger for the expression of biventricular arrhythmogenic cardiomyopathy in desmosomal gene mutation	5
Severe aortic regurgitation from aortic valve perforation in Libman‐Sacks endocarditis: Incremental value of 3D TEE	5
The quality, safety, feasibility, and interpretive accuracy of echocardiographic and lung ultrasound assessment of COVID‐19 patients using a hand‐held ultrasound	5
Systematic Review of Ultrasound Diagnostic Accuracy for Senile Calcified Valvular Heart Disease	5
Prevalence of mitral annular calcification and its association with mitral valvular disease	5
Confusion from prenatal diagnosis: Type C persistent fifth aortic arch or right‐side ductus arteriosus	5
Myocardial strain of the left ventricle by speckle tracking echocardiography: From physics to clinical practice	5
	5
Which is the best Myocardial Work index for the prediction of coronary artery disease? A data meta‐analysis	5
	5
	5
Three‐dimensional right ventriculo‐arterial coupling as an independent determinant of severe heart failure symptoms in patients with dilated cardiomyopathy	5
Assessing aortic flow with doppler echocardiography in cardiogenic shock: A crucial diagnostic tool	5
Is It Possible to Detect the Pathogenesis of Cardiac Amyloidosis by Echocardiography?	5
The influence of maternal COVID‐19 on cardiac functions: From fetal life to infancy	5
Incremental value of myocardial global longitudinal strain in predicting major adverse cardiac events among patients with hypertrophic cardiomyopathy	5
Multimodal Imaging to Detect Rare Coronary Artery Fistula Drainage	5
Left atrial strain as a potential parameter to detect cancer therapy‐related cardiac dysfunction: An editorial commentary and systematic review	5
Issue Information	5
Issue Information	4
Quadricuspid aortic valve repair with a modified‐tricuspidization technique	4
Feasibility and prognostic value of tissue motion annular displacement in patients with heart transplantation	4
To Each Imaging Modality, Their Own MAD	4
Prevalence of different echocardiographic abnormalities in a large Turkish workers population	4
Right ventricular systolic function and mechanical dyssynchrony in ischemic or non‐ischemic dilated cardiomyopathy: A speckle‐tracking study	4
Functional Mitral Valve Regurgitation, Pathophysiology, Leaflet ReModeling, and the Role of Imaging	4
Two‐Dimensional Speckle Tracking During Dobutamine Stress Echocardiography Versus Myocardial Perfusion Imaging by Single Photon Emission Computed Tomography in Patients With Suspected Coronary Artery	4
Evaluation of right ventricular function in patients with Behcet's disease by four‐dimensional echocardiography	4
Dumbbell in the atrium: A rare case report of biatrial myxoma that crosses atrial septum diagnosed by multimodal echocardiography	4
Issue Information	4
Association Between Lipoprotein(a) and Dilatation of Different Aortic Segments in Hypertensive Patients	4
Utility of the novel fetal heart quantification (fetal HQ) technique in diagnosing ventricular interdependence and biventricular dysfunction in a case of prenatally diagnosed Uhl's anomaly	4
Real‐World Feasibility and Challenges in Using LAS for Stress Echocardiography	4
A prediction model based on functional mitral regurgitation for the recurrence of paroxysmal atrial fibrillation (PAF) after post‐circular pulmonary vein radiofrequency ablation (CPVA)	4
Isolated muscular ventricular diverticulum assessment using multi‐parameter echocardiographic imaging: Case reports	4
The novel left atrial strain parameters in diagnosing of heart failure with preserved ejection fraction	4
Mitral E‐wave to stroke volume ratio displays stronger diagnostic performance to identify elevated left ventricular filling pressures than mitral E/e’ during passive leg lift: A cross‐sectional study	4
Hydrops Fetalis Secondary to Left Ventricle Diastolic Collapse Caused by Giant Rhabdomyoma: Utility of 4D STIC and Fetal Heart Quantification Techniques	4
Increasing region of interest width reduces neonatal circumferential strain	4
An attention‐based deep learning method for right ventricular quantification using 2D echocardiography: Feasibility and accuracy	4
What Is the Optimal Measurement Method for CT‐Derived Fractional Flow Reserve?	4
	4
	4
Atrioventricular and Ventricular Mechanical Interdependence Assessment by Automated Function Imaging in Heart Failure With Preserved Ejection Fraction	4
Computed Tomography Advancements in Plaque Analysis: From Histology to Comprehensive Plaque Burden Assessment	4
Comparison of imaging characteristics for mortality risk analysis between young and older acute aortic dissection patients	4
Dimensionless index and outcome in patients with aortic valve disease	4
Right Atrial Function and Right Ventricular Diastolic Function and Their Relation With Exercise Capacity in OSAS	4
Preload, Afterload, E and e′	4
Left atrial strain, embolic stroke of undetermined source, and atrial fibrillation detection	4
Effects of 3 months of treatment with empagliflozin on left ventricle global longitudinal strain and myocardial mechano‐energetic effiency	4
Noninvasive Left Ventricular Pressure‐Strain Loop for Assessment of Myocardial Work in Hemodialysis in Patients With Chronic Kidney Disease	3
Increased Afterload in Patients With Acute Reduction in Left Ventricular Ejection Fraction Following Mitral Valve Transcatheter Edge‐to‐Edge Repair	3
Permutations in pacer wire implantation in patients evaluated for transcatheter tricuspid valve interventions	3
Trajectory of left ventricular ejection fraction in response to therapies in patients with muscular dystrophy	3
Large intra‐abdominal umbilical vein varix with absent ductus venosus: The undeniable etiology of fetal heart failure despite associated congenital heart disease	3
Issue Information	3
An exceedingly rare cause of neonatal shock and the value of point‐of‐care ultrasound	3
	3
Hyperechoic mass of the right ventricle in adults: A rare presentation of an intracardiac teratoma	3
Association of FOXO3A with right ventricular myocardial fibrosis and its detection by speckle‐tracking echocardiography in pulmonary hypertension	3
Issue Information	3

A newborn with aortico‐left ventricular tunnel mimicking sinus of valsalva aneurysm	3
Fetal echocardiographic evaluation before and after nifedipine treatment in preterm labor	3
Noninvasive Assessment in Takotsubo Syndrome: A Diagnostic Challenge	3
A case of right aortic arch type II combined with Kommerell's diverticulum and left innominate vein beneath the aortic arch	3
Stress Echocardiography Revisited: Toward Improving Patient Selection and Clinical Decision‐Making	3
	3
Pseudoaneurysms of the Ascending Aorta Following Coronary Artery Bypass Surgery, Presenting as Stroke	3
Evaluation of left ventricular function in patients with mitral annular disjunction using speckle tracking echocardiography	3
Giant coronary aneurysm in a 6‐week‐old infant, an unusual finding?	3
Topsy‐Turvy Heart: Exceedingly Rare Congenital Rotational Heart Disease With Large Aorticopulmonary Window and Severe Tracheobroncial Malacia	3
Preliminary study of carotid variables under ultrasound analysis as predictors for the risk of coronary arterial atherosclerosis	3
Role of two‐dimensional strain echocardiographic parameters in suspected acute coronary syndrome patients with initial non‐diagnostic electrocardiogram and troponins: An observational study	3
Evaluation of Right and Left Ventricular Deformation Analysis in İdiopathic Right Bundle Branch Block by Speckle Tracking Echocardiography	3
Prevalence and factors associated with atrial mitral and tricuspid regurgitation in patients with atrial fibrillation	3
Before and Beyond Tissue Characterization: Cardiac Magnetic Resonance Imaging in the Morphological, Volumetric, and Functional Evaluation of the Right Ventricle in Arrhythmogenic Right Ventricular Car	3
Coronary sinus collapsibility index and inferior vena cava collapsibility index can predict right atrial pressure in patients undergoing right heart catheterization	3
Increased preload and echocardiographic assessment of diastolic function	3
Unexpected finding after aortic arch operation: a left ventricular pseudoaneurysm – Who is the culprit?	3
Acute occlusion of the left main coronary ostium by an endocarditis vegetation	3
Inflammatory cytokines and their correlations with different left ventricular geometries and functions in PHT patients	3
Presence of Apical Aneurysm and Its Impact on Left Ventricular Mechanics and Mechano‐Energetic Coupling in Patients With Apical Hypertrophic Cardiomyopathy	3
Unrepaired tetralogy of Fallot in a 71 years old woman: A case report and review of the literature	3
Right ventricular peak systolic free wall longitudinal strain as a practical tool to detect right ventricular dysfunction in acute myocarditis	3
The “airgap” and “swirling bubbles” signs in a patient with esophageal carcinoma	3
The clinical role of transesophageal echocardiography during transvenous lead extraction	3
Advancing transcatheter valve replacement for severe aortic regurgitation: Innovations in devices and multi‐modality imaging	3
Imaging Lessons From Multidisciplinary Team Meetings at a Quaternary Referral Center: A Case‐Based Review of Radiology Findings in Complex Adult Congenital Heart Disease	3
Fetal Double Inlet Left Ventricular Outcomes: Prenatal and Postnatal Diagnostic Concordance	3
Importance of Developing New Tools to Assess Cardiac Amyloidosis Using Echocardiography	3
The role of three dimensional transesophageal echocardiography in predicting the effect of cardiac resynchronization therapy on mitral regurgitation in patients with low ejection fraction heart failur	3
Comprehensive Quantification of Fetal Cardiac Function in Gestational Diabetes Mellitus Using Advanced Fetal HQ Imaging Techniques	3
Left atrial strain: A novel “biomarker” for chronic kidney disease patients?	3
Consistency of transesophageal echocardiography and angiography in grading paravalvular regurgitation during transcatheter aortic valve replacement	3
Diastolic Function in Acute Myocardial Infarction: Do We Need to Relax More?	3
Evaluation of fetal cardiac morphology and functions in pregnant women with familial Mediterranean fever	3
Acute Changes in Mitral Annular Geometry After Transcatheter Edge‐to‐Edge Repair With PASCAL	3
Multimodality imaging of multiple giant right coronary artery aneurysms combined with anomalous aortic origin of left coronary artery	3
Double‐chambered left ventricle misdiagnosed as ventricular septal defect	3
Issue Information	3
Bi‐atrial thrombus straddling a patent foramen ovale with bilateral embolization: A therapeutic challenge	3
ECHOCARDIOGRAPHY: A Journal of Cardiovascular Imaging and Intervention	3
Transgastric imaging—The key to successful periprocedural TEE guiding for edge‐to‐edge repair of the tricuspid valve	3
Identification of factors associated with progression of left atrial enlargement in patients with atrial fibrillation	3
Left ventricular apical hypertrophy emerged from the fourth‐year post heart transplantation: Case report and literature review	3
Circumferential strain in neonatal cardiac function: Reflections and directions for the future	3
	3
A novel approach to produce axial echocardiographic images by three‐dimensional transesophageal echocardiography: A step‐by‐step guide	3
Study of Degenerative Mitral Regurgitation Using Three‐Dimensional Echocardiography and EchoPAC GE Health Care Software 4D Auto MVQ: Comparison Between Transthoracic and Transesophageal Examination	3
The Evaluation of Right Ventricular Synchrony by Two‐Dimensional Speckle Tracking Echocardiography in Connective Tissue Disease‐Associated Pulmonary Arterial Hypertension	3
Increased left atrial volume index is associated with more cardiovascular events in patients with acute coronary syndrome: HIJ‐PROPER study findings	3
Effect of the number of parity on right heart chamber quantification	3
Overlapping Strain Patterns in Patients With Cardiac Amyloidosis and End‐Stage Renal Disease	2
Advancing risk stratification in pulmonary arterial hypertension through echocardiographic innovation	2
Myocardial Characterization on CT: Late Iodine Enhancement and Extracellular Volume	2
Secondary leaflet tethering in patients with severe degenerative mitral regurgitation and its association with the severity of mitral regurgitation	2
Right Ventricular Morphology in PA/IVS: Integrating Developmental Pathology With Echocardiographic Prognostication	2
Functional uni‐ventricular heart due to post‐myocardial infarction ventricular septum rupture	2
A rare complication of pericardiocentesis: Pneumopericardium	2
A Case of a Special Type of Coronary Artery‐Coronary Sinus Fistula	2
Congenitally Corrected Transposition of Great Arteries With Double Aortic Arch and Membranous Septal Aneurysm—A Rare Association	2
Multimodality imaging of Abernethy malformation	2
Evaluation of inter‐observer variability regarding aortic and mitral valve findings on transesophageal echocardiograms ordered for suspected endocarditis	2
Diagnostic Utility of Relative Apical Sparing Index in Cardiac Amyloidosis Subtypes: A Comparative Study of Immunoglobulin Light Chain and Transthyretin Amyloid Cardiomyopathy	2
Issue Information	2
What characterizes device‐related thrombosis following LAAC, if ejection fraction fails to shine?	2
Use of fusion imaging in safe, rapid, and accurate placement of percutaneous right ventricular assist device in the management of acute post‐surgical right ventricular failure	2
Large Subcutaneous Mass Adjacent to the Left Ventricular Apex	2
The CT derived angle between the transseptal puncture site and the left atrial appendage as a predictor for complex interventional occlusion procedures	2
Could premature ventricular contractions lead to atrial remodeling?	2
Percutaneous closure of congenital aortic–to–right atrial fistula	2
Value of Ultrahigh‐Resolution Photon‐Counting Detector Computed Tomography in Cardiac Imaging	2
Definition, prevalence, and clinical significance of mitral annular disjunction in different patient cohorts: A systematic review	2
Transthoracic ultrasound; seeking the heart in a patient with a large left‐sided cirrhotic hydrothorax	2
Assessment of fetal cardiac functions in pregnant women with asthma	2
Association Between Cholesterol Remnants and Cardiac Structure and Function: The Copenhagen City Heart Study	2
Impaired Aortic Biomechanical Properties in Patients With Severe Obstructive Sleep Apnea Syndrome	2
Multimodality Imaging and Immune‐Related Adverse Events During Immune Checkpoint Inhibitors Treatment: Where Do We Stand?	2
Prognostic Value of Transvalvular Flow Rate in Aortic Stenosis: Implications for Risk Stratification	2
Automated three‐dimensional echocardiographic quantification for left ventricular volume and function in patients with hypertrophic cardiomyopathy	2
Novel combined echocardiographic score comprising prognostically validated measures of left ventricular size and function to predict long‐term survival following myocardial infarction: A proposal to i	2
Speckle tracking imaging combined with myocardial comprehensive index to evaluate left ventricular function changes in patients with systemic lupus erythematosus	2
Diagnosis of left anterior descending branch‐right ventricular fistula with giant coronary artery aneurysm by contrast echocardiography: A case report	2
Sustained right ventricular dysfunction in severe COVID‐19: The role of disseminated intravascular coagulation	2
Think outside the coronary artery: Extremely rare case of STEMI in young man	2
Born to be Bad: Combination of Aorticopulmonary Window With Double‐Outlet Right Ventricle‐Pulmonary Atresia	2
Evaluating the Correlation and Reliability of a New Left Ventricular Segmental Wall Motion Score With Conventional Left Ventricular Ejection Fraction Measures in Echocardiography and Cardiac Magnetic	2
The association between myocardial contraction fraction assessed by echocardiography and mortality	2
Ruptured sinus of Valsalva aneurysm with dynamic aortic regurgitation	2
Insights of tricuspid regurgitation mechanisms in patients with right ventricular apical pacing by three‐dimensional echocardiography	2
In the right direction: A deep learning tool for assessment of right ventricular function	2
A rare cause of dyspnea: Primary large B cell lymphoma causes giant cardiac mass	2
Exploring cardiovascular implications of juvenile dermatomyositis: Insights from aortic stiffness analysis and 3D echocardiography	2
Echocardiographic assessment of pediatric heart transplantation: A single‐center experience in China	2
Role of Left Atrium Strain in Mitral Stenosis – A Narrative Review	2
A rare case of echo enhancing agent anaphylaxis complicated by acute coronary syndrome	2