The Role of CT Imaging in a Fractured Coronary Stent with Pseudoaneurysm Formation.

We report a case of a 63-year-old male patient with multiple cardiovascular risk factors and previous myocardial infarction who was referred to the emergency department on September 2023 with symptoms and clinical and biological data consistent with an acute coronary event. A coronary angiography revealed severe ostial stenosis of the left anterior descending artery (LAD) and intrastent thrombotic occlusion in the first two segments of the LAD. Two drug-eluting stents were implanted and the patient was discharged when hemodynamically stable; however, three weeks later, he returned to the emergency department complaining of fever, anterior chest pain, dyspnea at rest, and high blood pressure values at home. High levels of troponin T, C-reactive protein, and NT-proBNP were detected and blood cultures showed methicillin-resistant Staphylococcus aureus. The computed tomography (CT) examination showed a saccular dilatation had developed between two fragments of a stent mounted at the level of the LAD, surrounded by a hematic pericardial accumulation. LAD pseudoaneurysm ablation and a double aortocoronary bypass with inverted saphenous vein autograft were performed and the patient showed a favorable postoperative evolution. In this case, surgical revascularization was proven to be the appropriate treatment strategy, demonstrating the need to choose an individualized therapeutic option depending on case-specific factors.

Right Heart Failure as an Atypical Presentation of Chronic Type a Aortic Dissection - Multimodality Imaging for Accurate Diagnosis and Treatment. A Case Report and Mini-review of Literature.

Background: An intrapericardial organized haematoma secondary to chronic type A aortic dissection is an extremely rare cause of right heart failure. Imaging studies are essential in recognising and diagnosis of this distinctive medical condition and guiding the anticipated treatment. Case presentation: A 70-year-old male patient was admitted for progressive symptoms of right heart failure. His cardiovascular history exposed an aortic valve replacement 22 years before with a Medtronic Hall 23 tilting valve with no regular follow-up. Classical signs of congestion were recognized at physical examination. Transthoracic two-dimensional echocardiography and thoraco-abdominal computed tomography angiography, as essential parts of multimodality imaging algorithm, established the underlying cause of right heart failure. Under total cardiopulmonary bypass and cardiac arrest, surgical removal of the haematoma and proximal repair of the ascending aorta with a patient-matched vascular graft were successfully performed. The patient was discharged in good condition with appropriate pharmacological treatment, guideline-directed; no imagistic signs of acute post-surgery complications were ascertained. Conclusion: This paper highlights the importance of recognizing and providing a timely clinical and imagistic diagnosis of this very rare, potentially avoidable cause of right heart failure in patients with previous cardiac surgery.

Multiple pericardial hematomas: a case report and mini-review in multimodality imaging.

BACKGROUND: Pericardial hematoma is blood accumulation in the pericardial space. Although rare, it could arise in various conditions, such as after cardiac surgery. Clinical diagnosis of pericardial hematoma is implausible; thus, cardiac imaging plays a pivotal role in identifying this condition. We presented a case of multiple pericardial hematomas, which was found as an incidental finding in post-cardiac surgery evaluation. We highlighted the diagnostic challenge and the key features of multi-modality cardiac imaging in pericardial hematoma evaluation. CASE PRESENTATION: An asymptomatic, 35-years old male, who underwent surgical closure of secundum atrial septal defect (ASD) one month ago, came for routine transthoracic echocardiography evaluation. An intrapericardiac hematoma was visualized at the right ventricle (RV) 's free wall side. Another mass with an indistinct border was visualized near the right atrium (RA). This mass was suspected as pericardial hematoma differential diagnosed with intracardiac thrombus. Cardiac computed tomography (CT) scan showed both masses have an attenuation of 30-40 HU; however, the mass's border at the RA side was still not clearly delineated. Mild superior vena cava (SVC) compression and multiple mediastinal lymphadenopathies were also detected. These findings are not typical for pericardial hematomas nor intracardiac thrombus; hence another additional differential diagnosis of pericardial neoplasm was considered. We pursued further cardiac imaging modalities because the patient refused to undergo an open biopsy. Single-photon emission computer tomography (SPECT)/CT with Technetium-99 m (Tc-99 m) macro-aggregated albumin (MAA) and Sestamibi showed filling defect without increased radioactivity, thus exclude the intracardiac thrombus. Cardiac magnetic resonance imaging (MRI) reveals intrapericardial masses with low intensity of T1 signal and heterogeneously high intensity on T2 signal weighted imaged and no evidence of gadolinium enhancement, which concluded the diagnosis as subacute pericardial hematomas. During follow-up, the patient remains asymptomatic, and after six months, the pericardial hematomas were resolved. CONCLUSION: Pericardial hematoma should be considered as a cause of pericardial masses after cardiac surgery. When imaging findings are atypical, further multi-modality cardiac imaging must be pursued to establish the diagnosis. Careful and meticulous follow-up should be considered for an asymptomatic patient with stable hemodynamic.

A rare case of idiopathic chronic expanding pericardial hematoma presenting as pericardial tamponade: a case report and literature review.

Chronic expanding pericardial hematoma is a very rare disease that occurs after open-heart surgery. We report successful surgical treatment of a rare case of chronic expanding pericardial hematoma that developed into a large mass and presented as pericardial tamponade without apparent cause. An 82-year-old woman with no history of cardiac surgery, chest trauma, or epicardial injury presented with a 3-year history of progressive exertional dyspnea. Surgical resection of the mass via midsternotomy was planned to release the cardiac symptoms and to confirm the diagnosis of chronic expanding pericardial hematoma.

Transverse Pericardial Sinus Hematoma From Type A Aortic Dissection: A Diagnostic Challenge.

Ascending (type A) aortic dissection can rarely result in contained transverse pericardial sinus hematoma that compresses adjacent structures making diagnosis more challenging. We present a rare case of a 77-year-old man who presented with sudden-onset chest pain and was admitted for a presumed acute coronary syndrome. Coronary angiography did not show significant stenosis and ruled out acute coronary syndrome. Transthoracic echocardiogram showed extracardiac structure compressing on the left atrium; hence, we performed transesophageal echocardiogram which confirmed aortic dissection and revealed a hematoma in the transverse pericardial sinus. Intraoperatively, a large hematoma in the transverse pericardial sinus was extracted and revealed a posterior perforation of the ascending aorta that extended into the left atrium.

Traumatismo cardíaco penetrante en pediatría: presentación de caso, Hospital Infantil Dr. Robert Reid Cabral (HIRRC), República Dominicana / Penetrating Cardiac Trauma in Children: Case Presentation, Hospital Infantil Dr. Robert Reid Cabral, Dominican Republic.

Introducción: el traumatismo cardíaco es una condición poco frecuente en edad pediátrica, ocurriendo en menos del 5 % de traumatismos torácicos. Afecta más frecuentemente los ventrículos que las aurículas. Según el mecanismo de injuria puede ser: cerrado (como las contusiones torácicas) o penetrante (como las heridas por arma blanca o armas de fuego). El siguiente documento tiene la intención de describir la presentación clínica y el manejo de un paciente pediátrico con traumatismo cardíaco penetrante; se pretendió realizar una revisión de literatura sobre otros casos de traumatismo cardíaco penetrante. Presentación del caso: se expone el caso clínico de un paciente masculino de 14 años de edad, quien es referido al centro por historia de herida de arma blanca en región precordial izquierda. Se recibe con inestabilidad hemodinámica y hemitórax izquierdo hipodinámico; luego de realizar estudios de imagen y laboratorio se decide realizar toracocentesis. Ante evidente deterioro clínico, se decide realizar exploración quirúrgica, donde se halla laceración del ventrículo izquierdo y hematoma pericárdico, y se procede a drenar hematoma y cardiorrafia de ventrículo izquierdo. Conclusión: luego de describir la presentación y manejo de nuestro paciente, llegamos a la conclusión de que la sospecha clínica y el diagnóstico y manejo precoz son imprescindibles para mejorar el pronóstico de estos traumatismos. Asimismo, entendemos pertinente la exploración quirúrgica temprana ante los casos de inestabilidad hemodinámica, evitando el retraso de un tratamiento oportuno

Introduction: Cardiac trauma is a rare condition in pediatrics, occurring in less than 5 % of thoracic trauma. It affects the ventricles more often than the atria. Depending on the mechanism of injury, it may be classified as closed (such as blunt chest traumas) or penetrating (such as wounds with a knife or guns). The following document has the intention to describe the clinical presentation and management of a pediatric patient with a penetrating cardiac trauma, and it was intended to conduct a literature review on other cases of penetrating cardiac trauma. Case presentation: We present the clinical case of a 14-year-old male, who is referred to the center with history of a knife wound in the left precordial region. He is received with hemodynamic instability and hypodynamic left hemithorax, and, after performing imaging and laboratory studies, it was decided to perform thoracentesis. In the presence of evident clinical deterioration, it was decided to perform surgical exploration, where laceration of the left ventricle and pericardial hematoma is evidenced, for which drainage of hematoma and left ventricle cardiorrhaphy were performed. Conclusion: After describing the presentation and management of our patient, we conclude that clinical suspicion and early diagnosis and management are essential to improve the prognosis of these injuries. Likewise, we recognize the pertinence of early surgical exploration in cases of hemodynamic instability, avoiding the delay of a timely treatment.

[Sonographic diagnostics in operative intensive care medicine : Pericardial hematoma after cardiac surgery]. / Sonographische Diagnostik in der operativen Intensivmedizin : Perikardhämatom nach kardiochirurgischen Eingriffen.

These two case reports describe the use of transthoracic echocardiography in cardiac surgery patients during postoperative intensive care, when a pericardial hematoma developed. A focused echocardiographic examination was performed, which in both cases led to the correct diagnosis and revealed the cause for hemodynamic instability. Following additional computed tomography (CT) scans, cardiac surgery was performed on one patient, while in the other, bedside sonography was used for controlled pleural puncture and drainage of the pericardial hematoma. The case reports demonstrate that intrathoracic bleeding after cardiac surgery may develop with a latency of days to weeks, which can become hemodynamically relevant and require an intervention. Bedside point of care echocardiography opens the way for securing the diagnosis by means of CT or magnetic resonance imaging (MRI) if the circulatory state of the patient allows this prior to hematoma drainage or evacuation.

Positive Murphy's Sign in Pericardial Hematoma from a Right Atrial Tear.

A positive Murphy's sign in a patient with right upper quadrant abdominal pain is the arrest of inspiration during deep palpation of the quadrant. It is usually suggestive of acute cholecystitis. We report an unusual case of a positive Murphy's sign not due to acute cholecystitis, but rather from a pericardial hematoma from a right atrial tear causing right heart failure. The patient required an atrial tear repair to prevent a cardiac tamponade.