Incidental diagnosis of a large left ventricular pseudoaneurysm.

Left ventricular pseudoaneurysm is a rare complication of myocardial infarction and represent a myocardial rupture contained within a pericardial space limited by adhesions. Differentiating it from a left ventricular aneurysm can be a real diagnostic challenge. We report a case of a 50-year-old man admitted for symptoms of left heart failure.

Multimodality imaging in assessment of mitral valve tumors: An unusual papillary fibroelastoma?

Mitral valve masses are uncommon. These tumors and tumor-like lesions may have similar morphological and clinical characteristics, but different outcomes. Unlike valvular tumors, caseous calcification of the mitral annulus (CCMA) is a benign degenerative disorder, commonly misdiagnosed, thus differentiating it from other mitral valve masses is important to avoid unnecessary surgery.

The sad tale of a youthful right ventricle struggling with endomyocardial fibrosis.

Endomyocardial fibrosis (EMF) is a rare and often underdiagnosed form of restrictive cardiomyopathy. Prognosis is generally unfavorable. Early diagnosis, along with surgical and medical intervention, is crucial for improved outcomes.

Thermal Disorder-Induced Strain and Carrier Localization Activate Reverse Halide Segregation.

The reversal of halide ions is studied under various conditions. However, the underlying mechanism of heat-induced reversal remains unclear. This work finds that dynamic disorder-induced localization of self-trapped polarons and thermal disorder-induced strain (TDIS) can be co-acting drivers of reverse segregation.

The silent invader: a case of intrapericardial hydatid cyst with exceptional pulmonary artery involvement.

A 70-year-old woman was referred to our cardiology department for the management of dyspnoea. Cardiovascular examination revealed a loud P2, with no sign of right-sided heart failure. Chest X-ray showed a convex left medium cardiac border and a double contour along the right cardiac border.

[Giant left ventricle cardiac hydatid cyst : report of a challenging case].

Hydatidosis is a potentially fatal parasitic disease where humans are an accidental host. The cardiac location is due to the development in the heart of the larval form of Taenia Echinococcus granulosus. We present the case of a patient with a history of pulmonary hydatid cysts who presented with atypical chest pain with a huge hydatid cyst of the anterior and lateral wall of the left ventricle of 80/66 mm in diameter responsible of a thinning of the wall of the left ventricle and close relationship with the anterior descending artery and the circumflex artery.

The national moroccan registry of ST-elevation myocardial infarction (MR-MI).

Background: MR-MI is the first national Moroccan ST-elevation myocardial infarction (STEMI) registry. Its objectives are to assess patient management modalities and highlight the clinical and therapeutic characteristics of this pathology in all cardiology centres on a national scale.

Methods: Adult patients presenting with STEMI within 5 days of symptoms onset were enrolled over a period of 18 weeks from April to August 2018.

Coeliac Disease: A Rare Cause of Myocardial Infarction With Non-Obstructive Coronary Arteries.

Myocardial infarction with non-obstructive coronary arteries (MINOCA) poses a diagnostic dilemma. Identifying the underlying etiology is essential to ensuring appropriate management. Cardiac magnetic resonance (CMR) is a valuable tool that can aid clinicians for that purpose.

Catastrophic outcomes of thrombus 'bumper' ball in neglected severe rheumatic mitral stenosis: report of three cases.

Patients with rheumatic mitral stenosis (MS) often present complications such as atrial fibrillation and thrombus formation with significant morbi-mortality. Rarely, a free-floating 'ball thrombus' is found with possible catastrophic outcomes. We describe three cases of documented left atrial 'ping-pong' shaped 'thrombus ball' within MS: a 51 year old presented with acute heart failure with a fatal outcome due to the huge round thrombus closing the tight mitral valve, a 67-year-old and a 68-year-old male who were both urgently rushed to the operating room after accidental finding.

Double the Trouble - One Infarction After Another: A Case Report of Two Consecutive ST-Segment Elevation Myocardial Infarctions in Two Different Coronary Arteries.

In multi-vessel coronary artery disease, concomitant ST-segment elevation myocardial infarction (STEMI) in simultaneous two culprit lesions have been rarely reported. In this regard, the recurrence in a short period of time of a STEMI in a different coronary artery is also rare. We describe the case of a 56-year-old male smoker, who was presented with an anterior STEMI.

Giant circumflex artery with bilobed saccular aneurysm and right atrial fistula mimicking a bi-atrial hydatid cyst: a case report.

Coronary artery fistulas (CAF) are rare anomalies that pose a significant diagnostic and therapeutic challenge. Most of them originate from the right coronary artery and are congenital. They are often associated with coronary aneurysms.

Persistent left superior vena cava: Case report.

Persistent left superior vena cava (PLSVC) is a rare anomaly of the systemic venous circulation. We report the case of a 22-year-old female that had history of multiple repair surgeries for her esophageal atresia, as well as a right lobectomy for bronchiectasis 15 years prior. She was admitted to the surgical ward for complete resection of the right lung.

[Percutaneous dilation of mitral stenosis in patients with severe pulmonary hypertension during pregnancy].

Rheumatic mitral stenosis is the most common organic valvular heart disease in developing countries. These patients are at risk of decompensation during pregnancy. We here describe our experience with percutaneous dilation of mitral stenosis in patients with severe pulmonary hypertension during pregnancy.

Microstructural Evaluation of Phase Instability in Large Bandgap Metal Halide Perovskites.

The optoelectronic performance of organic-inorganic halide perovskite (OIHP)-based devices has been improved in recent years. Particularly, solar cells fabricated using mixed-cations and mixed-halides have outperformed their single-cation and single-halide counterparts. Yet, a systematic evaluation of the microstructural behavior of mixed perovskites is missing despite their known composition-dependent photoinstability.

[Coronary artery bypass grafting in patients with severe left ventricular systolic dysfunction: Short- and long-term outcomes].

Background: Ischemic heart disease with severe left ventricular systolic dysfunction is a poor prognosis. Coronary artery bypass grafting is the gold treatment in this population, despite high surgical risk.

Aim: The aim of our study is to evaluate the short- and long-term outcomes of coronary artery bypass grafting in patients with ischemic heart disease and severe left ventricular systolic dysfunction (LVEF≤35%).

Light- and bias-induced structural variations in metal halide perovskites.

Organic-inorganic metal halide perovskites have gained considerable attention for next-generation photovoltaic cells due to rapid improvement in power conversion efficiencies. However, fundamental understanding of underlying mechanisms related to light- and bias-induced effects at the nanoscale is still required. Here, structural variations of the perovskites induced by light and bias are systematically investigated using scanning probe microscopy techniques.

Solution-Processed Lithium-Doped ZnO Electron Transport Layer for Efficient Triple Cation (Rb, MA, FA) Perovskite Solar Cells.

The current work reports the lithium (Li) doping of a low-temperature processed zinc oxide (ZnO) electron transport layer (ETL) for highly efficient, triple-cation-based MAFARbPbI (MA: methylammonium, FA: formamidinium, Rb: rubidium) perovskite solar cells (PSCs). Lithium intercalation in the host ZnO lattice structure is dominated by interstitial doping phenomena, which passivates the intrinsic defects in ZnO film. In addition, interstitial Li doping also downshifts the Fermi energy position of Li-doped ETL by 30 meV, which contributes to the reduction of the electron injection barrier from the photoactive perovskite layer.

[Impact of mitral annuloplasty combined with surgical revascularization in ischemic mitral regurgitation].

Introduction: Ischemic Mitral Regurgitation (IMR) is a serious complication of coronary artery disease and is associated with a poor prognosis. The optimal surgical treatment of IMR involves controversies in its indications and modalities.

Objectives: To determine whether mitral annuloplasty associated with surgical revascularization improved short and mid terms outcomes compared with revascularization alone in patients with IMR.

Spectral dependence of direct and trap-mediated recombination processes in lead halide perovskites using time resolved microwave conductivity.

Elucidating the decay mechanisms of photoexcited charge carriers is key to improving the efficiency of solar cells based on organo-lead halide perovskites. Here we investigate the spectral dependence (via above-, inter- and sub-bandgap optical excitations) of direct and trap-mediated decay processes in CH3NH3PbI3 using time resolved microwave conductivity (TRMC). We find that the total end-of-pulse mobility is excitation wavelength dependent - the mobility is maximized (172 cm(2) V(-1) s(-1)) when charge carriers are excited by near bandgap light (780 nm) in the low charge carrier density regime (10(9) photons per cm(2)), and is lower for above- and sub-bandgap excitations.

Optical Properties of Photovoltaic Organic-Inorganic Lead Halide Perovskites.

Over the last several years, organic-inorganic lead halide perovskites have rapidly emerged as a new photovoltaic contender. Although energy conversion efficiency above 20% has now been certified, improved understanding of the material properties contributing to these high performance levels may allow the progression to even higher efficiency, stable cells. The optical properties of these new materials are important not only to device design but also because of the insight they provide into less directly accessible properties, including energy-band structures, binding energies, and likely impact of excitons, as well as into absorption and inverse radiative recombination processes.