scholarly journals Left Circumflex Artery Rupture with Left Atrial Tamponade and Functional Mitral Stenosis

2018 ◽  
Vol 2018 ◽  
pp. 1-5
Author(s):  
Weiting Huang ◽  
Khaled Mohamed Emadeldin Moheb Hammad ◽  
Victor Tar Toong Chao ◽  
Khung Keong Yeo
Keyword(s):  
Left Atrium ◽  
Coronary Sinus ◽  
Mitral Stenosis ◽  
Left Atrial ◽  
Pulmonary Veins ◽  
Fluid Collection ◽  
Artery Dissection ◽  
Circumflex Artery ◽  
Left Circumflex Artery ◽  
Coronary Syndrome

The growth in percutaneous transluminal devices has enabled operators to tackle more complex, native, and post-bypass surgery anatomy. However, complications such as coronary artery dissection, coronary perforation, retrograde aortic dissection, arrhythmias, and acute coronary syndrome still occur with resulting mortality rates of up to 4.2% in complex interventions. Perforation of the circumflex artery is of particular interest in view of its position and relation to the surrounding cardiac structures. This is a site of potential fluid collection, and as the left atrium is fixed to the parietal pericardium at the entry of the pulmonary veins, fluid in the oblique sinus can accumulate enough pressure to compress the left atrium and the coronary sinus. We present a case of left circumflex artery perforation which demonstrates the physiologic complications of coronary sinus and left atrial compression and the resultant functional mitral stenosis.

scholarly journals Iatrogenic acute aortic dissection caused by intervention for spontaneous coronary artery dissection: a surgical case report

2020 ◽  
Vol 15 (1) ◽  
Author(s):  
Yuki Hayashi ◽  
Makoto Taoka ◽  
Shunji Osaka ◽  
Satoshi Unosawa ◽  
Masashi Tanaka
Keyword(s):  
Percutaneous Coronary Intervention ◽  
Coronary Artery ◽  
Type A ◽  
Coronary Intervention ◽  
Artery Dissection ◽  
Circumflex Artery ◽  
Left Circumflex Artery ◽  
Coronary Syndrome ◽  
Left Anterior Descending Artery ◽  
Percutaneous Coronary

Abstract Background Iatrogenic acute aortic dissection (AAD) caused by cardiovascular intervention is rare. Also rare is spontaneous coronary artery dissection (SCAD), a form of acute coronary syndrome, which develops in relatively young women without coronary risk factors. We encountered type A iatrogenic AAD caused by an intervention for SCAD. Case presentation A 53-year-old woman was brought to our hospital after cardiopulmonary resuscitation. She was diagnosed with acute coronary syndrome caused by SCAD, and percutaneous coronary intervention was carried out on her distal left anterior descending artery. The dissection proceeded to the proximal left anterior descending artery and left main coronary artery trunk, so additional percutaneous coronary intervention was performed on the left circumflex artery. After the intervention, type A AAD occurred with a primary entry tear from the left main coronary artery trunk, and computed tomography showed a type A AAD of the aortic arch. We performed emergency ascending aorta replacement and coronary artery bypass grafting to the left anterior descending artery and left circumflex artery. The patient had an uneventful recovery after the operation and was discharged on postoperative day 25. Conclusion To our knowledge, this is the first report of an iatrogenic AAD caused by percutaneous coronary intervention for SCAD.

Abstract 4655: Retrograde Ethanol Infusion in the Vein of Marshall for Ablation of Atrial Fibrillation: Tissue Ablation, Effects on Regional Vagal Innervation and First Human Experience

Circulation ◽  
2008 ◽  
Vol 118 (suppl_18) ◽  
Author(s):  
Miguel Valderrábano ◽  
Harvey R Chen ◽  
Jasvinder S Sidhu ◽  
Liyun Rao ◽  
Yuesheng Ling ◽  
...  
Keyword(s):  
Atrial Fibrillation ◽  
Left Atrium ◽  
Coronary Sinus ◽  
Left Atrial ◽  
Vagal Stimulation ◽  
Pulmonary Veins ◽  
Posterior Wall ◽  
Tissue Ablation ◽  
Ethanol Infusion ◽  
Before And After

The vein of Marshall (VOM) is an attractive target during ablation of atrial fibrillation due to its autonomic innervation and its location anterior to the left pulmonary veins and drainage in the coronary sinus. We studied 14 dogs. A coronary sinus venogram showed a VOM in 10, which was successfully cannulated with an angioplasty wire and a 2 mm balloon. In 5 dogs, electroanatomical (Carto) maps of the left atrium were performed at baseline and after ethanol (100%, 4 – 8 cc) was infused in the VOM, which demonstrated the creation of a new crescent-shaped scar in the left atrium, extending from the annular left atrium towards the posterior wall and left pulmonary veins. In 4 dogs, both cervical vagal trunks were isolated in the carotid sheath and cuff stimulation electrodes were attached to them. Effective refractory periods (ERP) were measured in 3 sites of the left atrium, before and after high-frequency bilateral vagal stimulation. The baseline ERP was 113.6±35.0 ms, and decreased to 82.2±25.4 ms (p<0.05) after vagal stimulation. After alcohol infusion in VOM, vagally-mediated ERP decrease was eliminated (from 108±27.2 ms to 95.6 ±16.7ms, p=NS). This elimination of vagal effects was not uniform and was limited in sites in proximity with the VOM (baseline ERP 105±18.7ms vs post vagal 98.±37.6ms, p=NS, as opposed to 106.7±27.1ms vs post vagal 73.3±19.7ms, p<0.05, in sites remote to VOM). We also tested feasibility of VOM alcohol infusion in humans: 2 patients undergoing pulmonary vein antral isolation had successful VOM cannulation: left atrial voltage maps demonstrated new scar involving the infero-posterior left atrial wall extending towards the left pulmonary veins. Retrograde alcohol infusion in the VOM achieves significant left atrial tissue ablation, abolishes local vagal responses and is feasible in humans.

scholarly journals Three broken vessels in a peripartum patient: a rare case report of spontaneous triple vessel coronary artery dissection

2020 ◽  
Vol 4 (5) ◽  
pp. 1-6
Author(s):  
Hassan Lak ◽  
Karim Abdul Rehman ◽  
Wael A Jaber ◽  
Leslie Cho
Keyword(s):  
Coronary Artery ◽  
Troponin I ◽  
Significant Risk ◽  
Left Ventricular ◽  
Artery Dissection ◽  
Spontaneous Coronary Artery Dissection ◽  
Coronary Artery Dissection ◽  
Circumflex Artery ◽  
Left Circumflex Artery ◽  
Coronary Syndrome

Abstract Background Spontaneous coronary artery dissection (SCAD) is a frequently underdiagnosed entity that carries a significant risk of morbidity and mortality. Spontaneous coronary artery dissection is increasingly recognized as an important cause of acute coronary syndrome (ACS) and, the majority of SCAD patients are young healthy women. Case summary A 23-year-old female G5P4 presented to the emergency room for severe sub-sternal chest pain, associated with shortness of breath. Past medical history was significant for pre-eclampsia. Initial electrocardiogram was remarkable for ST depressions in V5–V6 with inverted T waves to V1–V2. Troponin I was elevated to 1.13 ng/mL. Two-dimensional echo showed reduced left ventricular function with an ejection fraction of 40%. Cardiac catheterization showed triple vessel dissection involving the left main trunk extending into mid-left anterior descending and dissection extending from ostium of left circumflex artery into large first obtuse marginal branch. She was started on aspirin and heparin. After 48 h she was loaded with clopidogrel. Computed tomography angiography of head, neck, abdomen, and pelvis showed findings compatible with fibromuscular dysplasia. She was haemodynamically stable and symptom free and did not want surgery. She was recommended to continue dual antiplatelet therapy for 12 months and subsequently aspirin and beta blocker only lifelong. Discussion Spontaneous coronary artery dissection is a rare condition which is underdiagnosed. A thorough history and high degree of suspicion is required to diagnose in a timely manner and it should be high on differential in a postpartum female presenting with signs and symptoms of ACS.

scholarly journals Successful PCI of Anomalous Left Circumflex Coronary Artery Arising from Right Coronary Sinus – A Case Report

2019 ◽  
pp. 1-4
Author(s):  
Gurkirat Singh ◽  
Hemant Khemani ◽  
Shakil Shaikh ◽  
Narender Omprakash Bansal
Keyword(s):  
Coronary Artery ◽  
Coronary Sinus ◽  
Coronary Arteriography ◽  
Anomalous Origin ◽  
Drug Eluting Stent ◽  
Circumflex Artery ◽  
Left Circumflex Artery ◽  
Coronary Syndrome ◽  
Drug Eluting ◽  
Significant Lesion

Coronary artery anomalies occur in 1.3-5.6% of patients undergoing coronary arteriography. An anomalous origin of LCX from right coronary sinus is the most common congenital variant. It is usually considered “benign” since it is not known to predispose individuals to sudden cardiac death. Such vessels are particularly predisposed to atherosclerotic disease in their proximal portion, due to the acute angulation of its origin from the aorta and its posterior retro aortic course. We present a case of 55 years old female admitted with acute coronary syndrome. Coronary angiogram showed the anomalous origin of the left circumflex artery from right coronary sinus. This artery had a significant lesion which was successfully stented with a drug-eluting stent.

scholarly journals Spontaneous coronary artery dissection of the proximal left circumflex artery: a case report

2019 ◽  
Vol 3 (3) ◽  
Author(s):  
Aleksandra Pineda ◽  
Josh Martin ◽  
Aniket Puri ◽  
Bijan Jahangiri
Keyword(s):  
Coronary Artery ◽  
Adverse Outcomes ◽  
Artery Dissection ◽  
Large Artery ◽  
Spontaneous Coronary Artery Dissection ◽  
Coronary Artery Dissection ◽  
Circumflex Artery ◽  
Left Circumflex Artery ◽  
Coronary Syndrome ◽  
Increased Risk

Abstract Background Spontaneous coronary artery dissection (SCAD) has gained attention as an important cause of acute coronary syndrome and sudden cardiac death (SCD) among women. Management strategies of SCAD differ from those of atherosclerotic disease. There is an elevated risk of complications and suboptimal outcomes in patients with SCAD undergoing percutaneous coronary interventions (PCIs). Case summary A 48-year-old woman without any traditional cardiovascular risk factors was admitted with severe central chest pain with associated dyspnoea and diaphoresis. The patient had a strong family history of SCD, affecting three female members in their 40s and 50s. Cardiac troponins were elevated. Coronary angiogram showed moderate to severe stenosis of the proximal circumflex coronary artery. Optical coherence tomography confirmed SCAD with sub-intimal haematoma. Despite significant stenosis in the proximal segment of a relatively large artery, a decision was made not to proceed with PCI. The follow-up angiogram demonstrated normal coronaries. Magnetic resonance imaging of renal arteries showed features suggestive of fibromuscular dysplasia affecting the right renal artery. Subsequent genetic counselling and gene testing were unremarkable. Discussion Conservative management of SCAD is recommended because the large majority of SCAD lesions heal naturally, whereas PCI is associated with increased risk of complications and adverse outcomes. Whether SCAD is associated with the sudden death events in our patient’s family remains unclear. It certainly raises concerns as to an inheritable condition. In the absence of post-mortem findings in her family members, we can only speculate about this representing a possible inheritable form of SCAD.

scholarly journals Primary Left Atrial Angiosarcoma Presenting as Acute Coronary Syndrome

2019 ◽  
Vol 22 (2) ◽  
pp. E162-E164 ◽  
Author(s):  
Sandra Jaksic Jurinjak ◽  
Josip Vincelj ◽  
Igor Rudez ◽  
Ante Lisicic ◽  
Ivana Jurin ◽  
...  
Keyword(s):  
Acute Coronary Syndrome ◽  
Differential Diagnosis ◽  
Left Atrium ◽  
Transoesophageal Echocardiography ◽  
Malignant Neoplasms ◽  
Circumflex Artery ◽  
Left Circumflex Artery ◽  
Coronary Syndrome ◽  
Cardiac Neoplasms ◽  
Rare Differential Diagnosis

Primary cardiac neoplasms are extremely rare and often overlooked as differential diagnosis. Angiosarcomas are the most common primary malignant neoplasms of the heart often with nonspecific symptoms. We present a 43-year-old woman admitted to our hospital with chest pain and inferoposterolateral myocardial infarction. Coronary angiography indicated the distal occlusion of the left circumflex artery. Transthoracic and transoesophagic echocardiography revealed a mass in the left atrium with probable myocardial infiltration and vascularisation. The mass in the left atrium was removed by surgical resection, and histopathology confirmed angiosarcoma. We emphasize the pivotal role of transthoracic and transoesophageal echocardiography in evaluating even rare differential diagnosis of acute coronary syndrome as cardiac neoplasms.

scholarly journals Fluid–structure interaction in a fully coupled three-dimensional mitral–atrium–pulmonary model

2021 ◽  
Author(s):  
Liuyang Feng ◽  
Hao Gao ◽  
Nan Qi ◽  
Mark Danton ◽  
Nicholas A. Hill ◽  
...  
Keyword(s):  
Mitral Valve ◽  
Left Atrium ◽  
Left Atrial ◽  
Left Atrial Appendage ◽  
Pulmonary Veins ◽  
Three Dimensional ◽  
Left Heart ◽  
Structure Interaction ◽  
Acute Mitral Regurgitation ◽  
Reversal Flow

AbstractThis paper aims to investigate detailed mechanical interactions between the pulmonary haemodynamics and left heart function in pathophysiological situations (e.g. atrial fibrillation and acute mitral regurgitation). This is achieved by developing a complex computational framework for a coupled pulmonary circulation, left atrium and mitral valve model. The left atrium and mitral valve are modelled with physiologically realistic three-dimensional geometries, fibre-reinforced hyperelastic materials and fluid–structure interaction, and the pulmonary vessels are modelled as one-dimensional network ended with structured trees, with specified vessel geometries and wall material properties. This new coupled model reveals some interesting results which could be of diagnostic values. For example, the wave propagation through the pulmonary vasculature can lead to different arrival times for the second systolic flow wave (S2 wave) among the pulmonary veins, forming vortex rings inside the left atrium. In the case of acute mitral regurgitation, the left atrium experiences an increased energy dissipation and pressure elevation. The pulmonary veins can experience increased wave intensities, reversal flow during systole and increased early-diastolic flow wave (D wave), which in turn causes an additional flow wave across the mitral valve (L wave), as well as a reversal flow at the left atrial appendage orifice. In the case of atrial fibrillation, we show that the loss of active contraction is associated with a slower flow inside the left atrial appendage and disappearances of the late-diastole atrial reversal wave (AR wave) and the first systolic wave (S1 wave) in pulmonary veins. The haemodynamic changes along the pulmonary vessel trees on different scales from microscopic vessels to the main pulmonary artery can all be captured in this model. The work promises a potential in quantifying disease progression and medical treatments of various pulmonary diseases such as the pulmonary hypertension due to a left heart dysfunction.

scholarly journals Superdominant Right Coronary Artery with Absent Left Coronary Artery and Left Circumflex Artery with Anomalous Left Anterior Descending Artery

2022 ◽  
Author(s):  
Bhavneet Singh ◽  
Rekha Gupta ◽  
Sreenivas Reddy
Keyword(s):  
Coronary Artery ◽  
Right Coronary Artery ◽  
Coronary Sinus ◽  
Left Coronary Artery ◽  
Therapeutic Modality ◽  
Single Coronary Artery ◽  
Circumflex Artery ◽  
Left Circumflex Artery ◽  
Single Vessel ◽  
Left Anterior Descending Artery

AbstractThe occurrence of super-dominant “single coronary artery” is an extremely rare and seldom reported phenomenon. The heart is dependent on a single vessel which makes its occlusion, if present, catastrophic. Here, the authors present an extremely rare combination of superdominant right coronary artery coexisting with absent left coronary artery and left circumflex artery with abnormal origin of left anterior descending artery from right coronary sinus. Precise morphological and physiological knowledge and evaluation of these anomalies is a must for opting the best available therapeutic modality and better prognosis.

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