Giant right coronary artery aneurysm- case report and literature review

Unmasking of a Giant Coronary Aneurysm by Chronic Total Coronary Occlusion Percutaneous Coronary Intervention Techniques

A young female patient presenting with a non-ST-segment elevation myocardial infarction underwent invasive coronary angiography, revealing a total occlusion of the right coronary artery. During percutaneous coronary intervention with dual catheter access, a retrograde tip injection and peculiar retrograde wiring unmasked a giant coronary aneurysm, which noninvasive imaging confirmed.

Left Upper Extremity Pain, Right Coronary Artery Culprit: A Puzzling Path to Aneurysm Discovery

Giant coronary artery aneurysm (GCA) is a rare disease afflicting 0.2% of the population. It is primarily attributed to atherosclerosis in adults and Kawasaki disease in children. Other uncommon etiologies include Takayasu arteritis and post-percutaneous coronary intervention.1,2 GCA lacks a universally accepted definition, with proposed criteria including a diameter exceeding 2 cm, 5 cm, or four times the normal vessel size.3 While the majority of GCAs are asymptomatic, a subset of patients present with angina, myocardial infarction from embolization or compression, heart failure due to fistula formation, or even sudden death.1 We report a case of an adult harboring a GCA involving the right coronary artery.

Acute myocardial infarction due to giant coronary artery aneurysm and arteriovenous fistula: a challenging case report and review of the literature

BACKGROUND

A coronary artery aneurysm (CAA) is an abnormal dilation of a coronary artery segment often accompanied by coronary artery fistula (CAF), leading to communication between a coronary artery and a cardiac chamber or a part of the coronary venous system. Both CAAs and CAFs can present with symptoms and signs of myocardial ischemia and infarction.

CASE PRESENTATION

We describe the case of a 46-year-old woman with non-ST-elevation myocardial infarction (NSTEMI) caused by a "giant" CAA. Various imaging modalities revealed a thrombus-containing aneurysm located at the right-posterior cardiac border, with established arteriovenous communication with the distal part of left circumflex artery (LCx). After initial treatment with dual antiplatelet therapy, a relapse of pain was reported along with a new increase in troponin levels, electrocardiographic abnormalities, reduced left ventricular ejection fraction (LVEF) and thrombus enlargement. Surgical excision of the aneurysm was favored, revealing its true size of 6 cm in diameter. Τhe aneurysm was excised without complications. The patient remained asymptomatic during follow-up.

CONCLUSIONS

Management of rare entities such as "giant" CAAs and CAFs can be challenging. Cases such as this can serve as precedents to facilitate treatment plans and develop consistent recommendations, emphasizing the importance of personalized strategies for future patients.

Coronary artery aneurysms: Comprehensive review and a case report of a left main coronary artery aneurysm

Coronary artery aneurysms (CAAs) are rare anatomical disorders of the coronary arteries. Atherosclerosis and Kawasaki disease are the principal causes of CCAs, while other causes including genetic factors, inflammatory arterial diseases, connective tissue disorders, endothelial damage after cocaine use, iatrogenic complications after interventions and infections, are also common among patients with CAAs. Although there is a variety of non-invasive methods including echocardiography, computed tomography, and magnetic resonance imaging, coronary angiography remains the gold standard diagnostic method. There is still no consensus about the most appropriate therapeutic strategy. Medical therapy including antiplatelets, anticoagulants, statins and ACEs are preferred either in patients with atherosclerosis, inflammatory status and stable CAAs, while percutaneous or surgery interventions are usually applied in patients with acute coronary syndrome due to a CAA culprit, obstructive coronary artery disease or large saccular aneurysms at a high risk of rupturing.

A giant isolated right coronary aneurism

A previously healthy 32-year-old female hailing from Mexico presented to the emergency department with rectorrhagia. Caseating granulomas were detected on histopathological analysis from cecum ulcerative lesions. A purified protein derivative skin test resulted positive. In order to exclude pulmonary tubercolosis, a CT lung scan was performed: a rounded and voluminous mass, located above the right atrioventricular cardiac junction, was unexpectedly revealed. Further, a cardiac magnetic resonance and a coronary angiography disclosed a giant (5 × 4,8 cm) isolated aneurysm of proximal right coronary artery with severe thrombotic layering. The patient was treated with isoniazid, rifampin, ethambutol, and pyrazinamide; after approximately 2 months of treatment, she had complete resolution of cecal lesions. Anticoagulant oral therapy with warfarin was started and the patient was submitted to coronary artery grafting bypass surgery.

Giant coronary artery aneurysms involving more than one coronary artery: case report

BACKGROUND

Coronary artery aneurysms are rare findings in patients undergoing coronary angiography. The presence of multiple coronary artery aneurysms located in more than one coronary artery is even more uncommon. The pathophysiology of such aneurysms is unknown, but the majority are often due to atherosclerosis, congenital heart disease, or vasculitis.

CASE PRESENTATION

We present a rare case of a 78-year-old female patient who presented with unstable angina and non-ST segment elevation myocardial infarction. On coronary angiography, she was found to have three separate 1 cm saccular aneurysms involving the proximal left anterior descending coronary artery. The right coronary artery could not be visualized. Computed chest tomography revealed a 6.6 × 6.3 cm saccular aneurysm of the right coronary artery, and a 4.4 cm fusiform aneurysm of the ascending aorta. The patient gave no history of percutaneous coronary intervention or cardiac surgical procedures. She had a previous history of endovascular stenting of an abdominal aortic aneurysm. The sizable right coronary artery aneurysm showed extrinsic compression of both the right atrium and ventricle with right ventricular hypokinesis. Serological studies for vasculitis were all negative. Pathology of the aneurysm wall revealed calcific atherosclerosis without evidence of vasculitis. The patient underwent subtotal resection of the right coronary aneurysm with ligation of the proximal and distal ends of the right coronary artery and double bypass surgery to the left anterior descending and right posterior descending coronary arteries.

CONCLUSION

The presence of multiple, large coronary artery aneurysms is very rare. Treatment can be challenging and should be individualized. Surgical treatment is recommended for giant coronary artery aneurysms to prevent potential complications.

Eighteen Years of Follow-up after Resection of a Giant Coronary Artery Aneurysm and Reconstruction with a Vein Graft

Giant coronary artery aneurysms are rare and challenging to treat because of variation in the presenting symptoms and the lack of established management guidelines. We report the case of a patient with a 6-cm-wide giant coronary artery aneurysm that was resected, followed by reconstruction using a saphenous vein graft and 18 years of follow-up.

Asymptomatic Giant Aneurysm of the Left Anterior Descending Coronary Artery: A Case Report and Review of the Literature

The most common cause of coronary artery aneurysms is atherosclerosis, which is associated with over 50% of all aneurysms diagnosed in adults. Although patients can be asymptomatic throughout their lives, giant coronary artery aneurysms can manifest themselves as myocardial infarction, aneurysmal rupture, and sudden cardiac death as well. Herein, we describe an asymptomatic patient with numerous risk factors and a positive cardiopulmonary exercise test who was admitted to the cardiology clinic for coronary angiography. A giant coronary artery aneurysm (3.0×2.0 cm in diameter) in the left anterior descending coronary artery and significant stenosis in both left and right coronary arteries were found. After discussing possible treatment options, the hospital's heart team recommended the surgical resection of the aneurysm and double coronary artery bypass graft. Four years after the cardiac surgery, at the time of writing the current manuscript, the patient is still in good condition and with no symptoms.

Asymptomatic giant right coronary artery aneurysm in Kawasaki disease: A case report

Incidentally diagnosed giant coronary artery aneurysms (gCAA) exceeding 50 mm in diameter are extremely rare and carry increased risks of cardiovascular morbidity and mortality. Currently, surgery is the preferred treatment for such gCAA.

Multimodality Imaging of a Giant Circumflex Coronary Artery Aneurysm in a Septuagenarian

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Coronary artery aneurysm is a possible differential diagnosis for chest pain.

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Echocardiography allows bedside detection of coronary artery aneurysm.

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Cardiac CT permits detailed assessment of a coronary artery aneurysm.

Giant right coronary artery aneurysm in the setting of the acute coronary syndrome: A case report

Giant right coronary artery (RCA) aneurysm is a rare coronary artery pathology. We describe a 45-year-old gentleman who presented with unstable angina of recent onset. Diagnostic workup including chest computed tomography angiography and left heart catheterization demonstrated three-vessel coronary artery disease with giant proximal RCA aneurysm. In the view of the severity of the coronary artery disease and the risk of rupture associated with the giant RCA aneurysm and the clinical presentation, the patient was successfully treated by coronary artery bypass surgery. During this procedure, the RCA aneurysm was ligated at both inflow and outflow. The patient recovered well and was discharged home.

Unique Findings and Novel Treatment Strategy of a Giant Coronary Artery Aneurysm Associated with a Significant Pericardial Effusion

Giant coronary artery aneurysms are a rare, asymptomatic occurrence. Presently, there is a lack of substantial research performed in the U.S., likely due to its low prevalence. As we are increasingly becoming a global community, strengthening data for seemingly rare disease processes such as this need to be addressed, particularly when they can progress to involve complications such as pericardial effusion caused by aneurysmal rupture or infection. A popular treatment option for these aneurysms is polytetrafluoroethylene-covered stents; they have been favorable with obtaining a high percentage of procedural success rates in aneurysms not associated with myocardial infarctions. In this paper, we present a case of a giant coronary artery aneurysm located in the left circumflex coronary artery that was complicated by a pericardial effusion. We will also present its unusual repair using a long drug-eluting stent as a scaffold to overlap covered coronary stents used to help exclude the aneurysm.

Congenital giant right coronary artery

Giant coronary artery aneurysms are exceptionally uncommon with an incidence of 0.02%. The natural history and prognosis of giant coronary artery aneurysm are still not well known.

Giant right coronary artery aneurysm. Case Report

Introduction: Coronary aneurysms are rare and are linked to drug abuse; symptomatology depends on the coronary anatomy. This is a case of acute coronary syndrome associated with a giant right coronary aneurysm.Case description: A 40-year-old male, with history of heroin and crack use since age 20, attended consultation due to dyspnea, stable angina and diaphoresis. An electrocardiogram showed ST segment overlay on the underside and troponin problems. A coronary catheterization was performed, which revealed apparent inconclusive aortato-right atrium fistula. Based on the findings, angiotomography and magnetic resonance imaging were performed, finding a giant right coronary aneurysm. The aneurysm was resected using extracorporeal circuit, femoral cannulation, moderate hypothermia, aortic cross-clamping and cardioplegia, and the right coronary artery was revascularized with the left internal saphenous vein. The patient had a satisfactory postoperative period and was discharged after 7 days.Conclusion: There is an important association between drug use and the development of coronary aneurysms. Aneurysm size makes diagnosis difficult, so complementary studies are necessary to establish a differential diagnosis. An appropriate surgical approach allows for a complete resection of the aneurysm and optimal coronary revascularization.

Giant right coronary artery aneurysm - A rare presentation

Coronary artery aneurysm (CAA) is focal dilatation of a coronary artery 1.5 times or more its normal size (Res Cardiovasc Med, 2016; 5: e32086). Coronary artery aneurysm is found in 1.2-4.9% of diagnostic coronary angiography and 1.4% at post-mortem (Heart Views, 2014; 15: 13; Clin Cardiol, 2015; 29: 439). The proximal and middle segments of the right coronary artery (RCA) are most commonly involved, followed by the proximal left anterior descending (LAD) and the left circumflex arteries. The left main stem rarely develops aneurysms (Clin Cardiol, 2015; 29: 439). A giant aneurysm is a CAA> 2 cm. Giant coronary artery aneurysms (GCAA) are rare (incidence 0.02%) although cause serious complications. [4] Given the rarity of this disease, there is limited information in the literature on its presentation and there is no consensus on its optimal management option. We report a case of a GCAA with an atypical presentation and describe its management. This will add to the current small database on CAA to provide clinicians a better insight on the disease.

Giant right coronary artery aneurysm presenting as an STEMI

Giant coronary artery aneurysms are an infrequent finding. They are typically discovered incidentally, rarely presenting with any symptoms. We present the case of a 72-year-old gentleman who presented with an ST elevated myocardial infarction. On investigation, the gentleman was found to have a giant right coronary artery aneurysm which was partially filled with a fresh thrombus. The thrombus occluded the RCA, triggering the myocardial infarction which leads to this gentleman’s presentation to a tertiary cardiac centre. The gentleman underwent a successful resection of the aneurysm and coronary artery bypass graft over the RCA lesion with a saphenous vein conduit. This gentleman has since been discharged from hospital after an uncomplicated postoperative course.

Giant right coronary artery aneurysm presenting as cardiac tamponade

Giant coronary artery aneurysms are rare and have variable presentations, which range from an incidental finding to sudden death. We report a case of a female presenting with chest pain and signs of cardiac tamponade who underwent a computed tomography (CT) pulmonary embolus protocol and was found to have haemopericardium with accumulation of contrast adjacent to the aorta. She underwent emergent sternotomy and was found to have a ruptured giant right coronary artery aneurysm, which was ligated and bypassed. This report highlights the difficulty of diagnosing a ruptured giant coronary artery aneurysm via CT and provides valuable information on an atypical presentation.

Multiple giant coronary artery aneurysms combined with right coronary artery-pulmonary artery fistula: a case report

Background

The combination of multiple giant coronary artery aneurysms (CAAs) and right coronary artery (RCA) to pulmonary artery (PA) fistula is extremely rare and the patients with CAAs may suffer from several fatal complications. We herein describe a 60-year-old female with hemodynamic instability who was diagnosed with multiple giant CAAs combined with RCA-PA fistula.

Case presentation

The patient, a 60-year-old female, presented to the emergency room because of progressive exertional chest distress and fatigue. The transthoracic echocardiography (TTE), coronary computed tomography angiography (CTA) and invasive coronary angiography confirmed the existence of multiple giant CAAs and RCA-PA fistula. Laboratory examinations for systemic vasculitis and infectious diseases demonstrated no abnormalities and work-up for childhood and family history were negative. We have performed a successful surgical treatment for this patient. The patient’s restrictive cardiac dysfunction was improved after debriding the advanced thrombi in aneurysm sac and ligating the fistulous vessel between the native RCA and PA. The postoperative pathologic examination of the aneurysmal wall revealed loss of smooth muscle cells in the media with local mucoid degeneration, no chronic inflammation, sclerosis and IgG4 were observed.

Conclusions

The treatment decision-making process should depend upon the patients’ specific situations. Our case suggests the surgical intervention should be accepted as the preferred treatment for giant CAAs with restrictive cardiac dysfunction.

Electronic supplementary material

The online version of this article (10.1186/s12893-019-0547-z) contains supplementary material, which is available to authorized users.

Exclusion of a Giant Coronary Artery Aneurysm With Covered Stents Using a Long Drug-Eluting Stent Scaffold

Coronary artery aneurysms (CAA) are a rare cause of acute coronary syndrome and there is little consensus as to the optimal treatment. Based on case series as well as expert opinion, surgery has been suggested as the optimal treatment for a giant CAA. Here, we present the case of a patient with recurrent myocardial infarction and severe angina due to a giant CAA, who was deemed a poor surgical candidate due to his multiple medical comorbidities. Given his intractable anginal symptoms despite medical therapy, he chose to pursue percutaneous intervention. However, the aneurysm was larger than available covered coronary stents and the patient had significant atherosclerotic disease proximal and distal to the aneurysm itself. Our approach used a long drug-eluting stent as a scaffold to overlap covered coronary stents to successfully exclude the aneurysm. The patient’s angina resolved and had no complications or readmissions after nearly 1 year of follow-up.

Outcome of a giant coronary artery mycotic pseudoaneurysm secondary to non-typhoid Salmonella managed without surgical intervention

A 48-year-old woman with a history of AIDS, a recent coronary artery bypass graft operation and prior bacteraemia with non-typhoid Salmonella presented with non-exertional chest pain and elevated troponins. The cardiac catheterisation and coronary CT angiography revealed a 9 cm pseudoaneurysm arising from the proximal left anterior descending artery. The blood cultures confirmed non-typhoid Salmonella. Emergent surgery was initially deferred due to her complex anatomy. Moreover, the hospital course was complicated by Epstein-Barr virus meningitis and an associated decline in the patient’s mentation. Consequently, the mycotic pseudoaneurysm was medically managed with antibiotics and strict blood pressure goals. The natural history of giant mycotic coronary artery pseudoaneurysm formation and progression is appreciated through this first reported medically managed case. The follow-up coronary CT angiography at 3 months showed evidence of pseudoaneurysm leakage into surrounding tissue. The patient expired at 5 months from an unknown cause.

Multiple Giant Coronary Artery Aneurysms Surgically Treated with Bypass Grafting: A Challenging Rarity

Coronary artery aneurysms are encountered in daily cardiology practise but multiple giant-sized coronary artery aneurysms are extremely rare. We present an illustrative case of multiple giant aneurysms located throughout the coronary system (left main stem and all left, right, and circumflex branches) in a 57-year-old male with acute coronary syndrome. The case was managed successfully with on-pump quadruple coronary artery bypass grafting. To our knowledge, few cases of multiple giant aneurysms in all coronary vessels have been reported.

Severe Dilatation of Coronary Artery Ostium Complicating Sinus of Valsalva Aneurysm: Differential Diagnosis and Review of the Literature

Coronary artery dilatation may be due to various aetiologies including congenital anomalies, atherosclerotic coronary disease, and Kawasakis disease. We describe a case characterised by apparent severe dilatation of the right coronary artery ostium in an asymptomatic male. Subsequent imaging and surgical intervention documented the presence of a sinus of Valsalva aneurysm extending into the ostium of the right coronary artery. This represents an unusual manifestation of a sinus of Valsalva aneurysm. The underlying pathophysiology, differential diagnosis, role of surgical management, and outcomes are discussed.

Coronary Artery Aneurysms: A Review of the Epidemiology, Pathophysiology, Diagnosis, and Treatment

Coronary artery aneurysms (CAAs) are uncommon and describe a localized dilatation of a coronary artery segment more than 1.5-fold compared with adjacent normal segments. The incidence of CAAs varies from 0.3 to 5.3%. Ever since the dawn of the interventional era, CAAs have been increasingly diagnosed on coronary angiography. Causative factors include atherosclerosis, Takayasu arteritis, congenital disorders, Kawasaki disease (KD), and percutaneous coronary intervention. The natural history of CAAs remains unclear; however, several recent studies have postulated the underlying molecular mechanisms of CAAs, and genome-wide association studies have revealed several genetic predispositions to CAA. Controversies persist regarding the management of CAAs, and emerging findings support the importance of an early diagnosis in patients predisposed to CAAs, such as in children with KD. This review aims to summarize the present knowledge of CAAs and collate the recent advances regarding the epidemiology, etiology, pathophysiology, diagnosis, and treatment of this disease.

Bilateral coronary artery fistulas with a giant coronary aneurysm complicated by aneurysm rupture: A case report

RATIONALE

Coronary artery aneurysms and fistulas are not rare conditions in clinical practice, but bilateral fistulas with a giant coronary aneurysm in just one person are quite rare.

PATIENT CONCERNS

We report a case of a 66-year-old woman with these 2 coronary abnormalities accompanied with a huge mediastinum mass.

INTERVENTIONS

The giant aneurysm was ligated and the mass was resected which was proved to be an organized hematoma finally.

OUTCOMES

The patient was discharged soon with no complications.

LESSONS

The best treatment of giant coronary aneurysm is not clear because of its rarity, surgical resection may be the right procedure for the potential serious complications like this case.

Giant left anterior descending coronary artery aneurysm in an adult male patient with ST elevation myocardial infarction

Coronary artery aneurysm is a rare clinical entity encountered incidentally 0.3–5% among patients who undergo coronary angiography. Even giant coronary artery aneurysm is much rarer with an incidence of 0.02% among all atherosclerotic cases. Due to rare occurrence and lack of controlled trials, clinical presentation, prognosis and management of giant coronary artery aneurysm are under controversies in the literature. We report a 43-year-old male patient admitted to our hospital with a typical chest pain associated with ST elevation changes in anterior chest leads and elevated cardiac enzymes. Coronary angiography of the patient revealed a large (1.5 cm × 3 cm) aneurysm of proximal left anterior descending coronary artery. We performed a successful surgical excision and coronary bypass surgery. The patient had an uncomplicated course.

Percutaneous exclusion of a rapidly enlarging left main coronary artery aneurysm using coils and an Amplatzer™ septal occluder

Coronary artery aneurysms (CAAs) are often an incidental finding amongst patients undergoing coronary angiography. Most CAAs are managed conservatively; rarely a larger CAA can lead to intramural thrombus formation and coronary artery embolization/obstruction even without the presence of significant stenosis. Despite these clinical implications, therapeutic options are limited to case reports and no clearly defined guidelines have been established for treatment. In this article, we present a unique case of a rapidly enlarging left main CAA, with no identifiable etiology that was treated with percutaneous exclusion via coil embolization and an Amplatzer™ septal occluder device. We also discuss existing literature, pathophysiology, and management options for CAAs. © 2016 Wiley Periodicals, Inc.

Multiple giant coronary artery aneurysms: a case report

BACKGROUND

Coronary artery aneurysm is defined as a localized area of dilatation exceeding the diameter of the adjacent normal arterial segment by 50%. Giant aneurysms are those aneurysms that measure greater than 2cm in diameter. There have been many pathologic diseases, including atherosclerosis, that have been implicated in the development of coronary artery aneurysms.

MATERIALS AND METHODS

We report a case of a 61-year-old African American male with multiple comorbidities including hypertension, congestive heart failure, abdominal aortic aneurysm, and bilateral iliac aneurysms, who was admitted to our hospital with exacerbation of congestive heart failure. Less than 2weeks after admission, the patient suffered cardiac arrest while receiving dialysis and was unresponsive to resuscitative measures.

FINDINGS

Autopsy was performed and revealed significant cardiomyopathy and giant coronary artery aneurysms involving the left anterior descending, left circumflex, and right coronary arteries. Both ventricles showed hypertrophy and dilation with multifocal areas of chronic myocardial scarring.

CONCLUSIONS

Coronary artery aneurysms and giant coronary artery aneurysms are an uncommon. As there are few reported cases in the literature, the cause, detection, and treatment of this disease are still largely unknown.

Giant right coronary artery aneurysm secondary to Kawasaki disease in child: a case report

Coronary artery aneurysm or ectasia was reported in approximately 15% to 25% of the affected children, particularly in the proximal end of the main blood vessel and the left anterior descending part. Rare patients have been reported with aneurysm in the distal end of the right coronary artery. In this case report, we present a rare case with aneurysm in the distal end of the right coronary artery. Multi-slice computed tomography was performed for the coronary angiography. Aspirin (10 mg/kg body weight per day) and gamma globulin (2 kg/kg body weight) was administrated via intravenous injection. The patient is currently in a healthy status with a 12-month follow up.

Giant coronary artery aneurysms: review and update

Giant coronary artery aneurysms are rare, with a reported prevalence of 0.02% to 0.2%. Causative factors include atherosclerosis, Takayasu arteritis, congenital disorders, Kawasaki disease, and percutaneous coronary intervention. Most giant coronary artery aneurysms are asymptomatic, but some patients present with angina pectoris, sudden death, fistula formation, pericardial tamponade, compression of surrounding structures, or congestive heart failure. Clinical sequelae include thrombus formation, embolization, fistula formation, and rupture. Surgical correction is generally accepted as the preferred treatment for giant coronary artery aneurysms. We present an illustrative case of a giant 70 × 40-mm coronary artery aneurysm in a 56-year-old man who declined surgery and died one month later. In addition, we provide a review of the medical literature on giant coronary artery aneurysms.

Double giant coronary aneurysm: improved morphological study by computed tomography

Coronary artery aneurysm may cause coronary artery rupture, thromboembolism or haemodynamic problems related to compression. We report the case of a 68-year old man who was referred to an intensive cardiological care unit for recurrence of ventricular tachycardia. Coronary angiography revealed two large aneurysms of the mid-right coronary artery. A multislice computed tomography (CT) study demonstrated marked underestimation by invasive angiography because of the large thrombus. The patient was referred for cardiac surgery. The right mammary artery was used as a bypass graft to the distal segment of the right coronary artery and the two aneurysms were ligated proximally and distally after removal of their thrombus filling. The postoperative CT confirmed patency of the bypass graft and the vascular exclusion of the aneurysm, with no opacification. Cardiac CT is a promising tool for the comprehensive study of coronary aneurysms, both before and after surgery.

Expanding giant right coronary artery aneurysm: an acute need for new management strategies

Angiography use has become increasingly common worldwide. Coronary artery aneurysm may be an incidental finding during angiography. Occasionally it might be symptomatic or may become symptomatic over the course of time. Rupture of aneurysm may lead to disastrous complications. Here we present a case in which aneurysm was asymptomatic but surgical intervention was done because of rapid increase in the size of aneurysm. This is to drive home the point that timely surgical intervention is instrumental in preventing complications associated with possible rupture of the aneurysm.

Thrombosed left circumflex artery aneurysm presenting with myocardial infarction

Coronary artery aneurysms are life-threatening conditions that are quite uncommon in adults. They are observed in 1.1% to 4.9% of patients undergoing coronary angiography. They are usually located in the right coronary artery, may sometimes be thrombosed or rupture, and occasionally reach an enormous size leading to compressive symptoms. We report a case of thrombosed left circumflex artery aneurysm presenting with myocardial infarction. The thrombosed aneurysm, which could not be clearly demonstrated by coronary angiography, was definitively diagnosed by coronary computed tomography angiography. No operation was planned owing to total thrombosis of the aneurysm.

Staged hybrid treatment for contained rupture of a large right coronary artery aneurysm

We describe a staged approach to the management of a rare acute condition--contained rupture of a large right coronary artery aneurysm. A covered stent was deployed percutaneously to isolate the aneurysm at presentation followed by planned coronary bypass grafting. Treatment interval was complicated by new-onset pulmonary tuberculosis and subacute thrombosis of the covered stent leading to nonfatal inferior myocardial infarction. Coronary surgery was performed after complete antitubercular treatment and resolution of the acute pericarditis/thrombosis as a consequence of the contained rupture. The advantages of this staged approach included the following: (a) The covered stent prevented both acute myocardial infarction and progressive pseudoaneurysm expansion in the acute phase. (b) Deferred surgery was rendered technically less hazardous while avoiding the undesirable option of having to exclude an extremely calcified dominant right coronary artery. The patient made an excellent postoperative recovery with complete resolution of her symptoms at 6 weeks' follow-up.

A giant coronary artery aneurysm with a fistula followed-up for 12 years using the contrast-enhanced computed tomography scan

We report a case of a 35-year-old woman who was diagnosed with a giant coronary artery aneurysm (CAA) with a fistula and followed-up using the contrast-enhanced computed tomography scan and 2-dimensional transthoracic echocardiography. The diameter and volume cubic content of the giant CAA had increased linearly during the 12-year follow-up period without any complications. As there are few reports about long-term follow-up of giant CAAs without a surgical intervention, the natural course of a giant CAA is still unclear. Thus, we may need to closely follow-up chronological changes of a giant CAA to decide the treatment strategy.

Non-atherosclerotic multiple coronary artery aneurysms

A 52-year-old man underwent two-dimensional echocardiogram which showed moderate to severe aortic regurgitation (AR) and dilated ascending aorta. CT angiography (CTA) showed dilated ascending aorta (5 cm) and transoesophageal echocardiogram revealed bicuspid aortic valve. He underwent cardiac catheterisation which revealed triple vessel aneurysmal disease of the left anterior descending, left circumflex and right coronary artery. The patient underwent aortic graft placement for ascending aortic aneurysm and aortic valve replacement with a Saint Jude valve for severe AR. There was no history or stigmata of Kawasaki disease and workup for coronary artery aneurysm including vasculitis and connective tissue disorders was negative. Histopathology did not reveal evidence of active aortitis or dissection. His aneurysms are being observed by a yearly coronary CTA. We present a rare case of multiple coronary artery aneurysms associated with bicuspid aortic valve and ascending aortic aneurysm.

Surgical management of multiple coronary artery aneurysms

We describe the surgical management of three distinct coronary artery aneurysms in conjunction with coronary artery bypass grafting.