Ahmed Rashed
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View article: The Role of Transformational Leadership in Fostering Innovative Work Behavior: The Mediating Role of Organizational Resilience
The Role of Transformational Leadership in Fostering Innovative Work Behavior: The Mediating Role of Organizational Resilience Open
View article: #2435 Calciphylaxis: patient demographics, risk factors and outcomes in a single regional centre in New Zealand
#2435 Calciphylaxis: patient demographics, risk factors and outcomes in a single regional centre in New Zealand Open
Background and Aims Calciphylaxis, a condition associated with microvascular calcification and subsequent formation of non-healing tender skin lesions, has previously been estimated to affect only approximately 1% of patients with ESRD eac…
View article: Role of MR arthrography in the evaluation of rotator cuff injuries. A comparative study to high resolution ultrasonography
Role of MR arthrography in the evaluation of rotator cuff injuries. A comparative study to high resolution ultrasonography Open
Background: Shoulder pathology is associated with substantial functional limitations that increase with age.Rotator cuff injuries are the most likely source of shoulder pain.
View article: Tribological Performance for Steel–Steel Contact Interfaces Using Hybrid MWCNTs/Al2O3 Nanoparticles as Oil-Based Additives in Engines
Tribological Performance for Steel–Steel Contact Interfaces Using Hybrid MWCNTs/Al2O3 Nanoparticles as Oil-Based Additives in Engines Open
Numerous problems occur during engine operation, such as start-up, lack of lubrication, and overheating, resulting in engine components’ wear, power loss, and fuel consumption. Nanomaterials dispersed in engine oil can play an important ro…
View article: Effect of Low Content of Al2O3 Nanoparticles on the Mechanical and Tribological Properties of Polymethyl Methacrylate as a Denture Base Material
Effect of Low Content of Al2O3 Nanoparticles on the Mechanical and Tribological Properties of Polymethyl Methacrylate as a Denture Base Material Open
In this study, the mechanical and tribological properties of polymethyl methacrylate (PMMA)-based dentures strengthened by a low content of alumina (Al2O3) nanoparticles were evaluated. PMMA nanocomposites with different weight fractions (…
View article: Tribological Properties of Al2O3 Nanoparticles as Lithium Grease Additives
Tribological Properties of Al2O3 Nanoparticles as Lithium Grease Additives Open
The tribological properties of Lithium grease specimens with different concentrations of Al2O3 nanoparticles were investigated using a pin on disc apparatus under different sliding speeds and normal loads. Results showed that Al2O3 nanopar…
View article: Multimodality Imaging of Pericardial Hematoma
Multimodality Imaging of Pericardial Hematoma Open
A 66-year-old male, with a history of atrial fibrillation on chronic anticoagulation therapy, and a known pericardial hematoma, presented to the hospital with worsening dyspnea initially attributed to right sided pleural effusion. Further …
View article: COMPARATIVE STUDY BETWEEN PROPOFOL AND DEXMEDETOMIDINE SEDATION IN REDUCING DELIRIUM AFTER CARDIAC SURGERY IN ELDERLY PATIENTS
COMPARATIVE STUDY BETWEEN PROPOFOL AND DEXMEDETOMIDINE SEDATION IN REDUCING DELIRIUM AFTER CARDIAC SURGERY IN ELDERLY PATIENTS Open
Background: Delirium is an acute mental disorder that involves changes in consciousness, attention, cognition, and perception.Postoperative delirium occurs frequently in patients after cardiac surgery and is associated with a prolonged hos…
View article: Monitoring of Belt-Drive Defects Using the Vibration Signals and Simulation Models
Monitoring of Belt-Drive Defects Using the Vibration Signals and Simulation Models Open
The main aim of this paper is to dedicate the belt drive system faults like cogs missing, misalignment and belt worm using vibration analysis technique. Experimentally, the belt drive test-rig is equipped to measure vibrations signals unde…
View article: Early-Onset Bilateral Severe Valvular Regurgitation After Mediastinal Radiotherapy in Hodgkin Lymphoma Survivors: Should We Screen Prior to 10 Years After Mediastinal Radiotherapy?
Early-Onset Bilateral Severe Valvular Regurgitation After Mediastinal Radiotherapy in Hodgkin Lymphoma Survivors: Should We Screen Prior to 10 Years After Mediastinal Radiotherapy? Open
Background: Radiation-induced valvulopathy (RIV) is a common complication of mediastinal radiotherapy and usually occurs at least 10 years after exposure to radiotherapy. Case Report: We report the case of a 37-year-old femal…
View article: Reverse Takotsubo Cardiomyopathy in a Patient With Prior Apical Takotsubo Cardiomyopathy: Challenging the Beta Receptor Gradient Theory
Reverse Takotsubo Cardiomyopathy in a Patient With Prior Apical Takotsubo Cardiomyopathy: Challenging the Beta Receptor Gradient Theory Open
Background: Classic Takotsubo cardiomyopathy has been described as transient apical dyskinesia following major stress that is believed to be related to catecholamine surges. Atypical variants have been described, including the rarer…
View article: Use of direct oral anticoagulants in the treatment of left ventricular thrombi: A tertiary center experience and review of the literature
Use of direct oral anticoagulants in the treatment of left ventricular thrombi: A tertiary center experience and review of the literature Open
Key Clinical Message Direct oral anticoagulants can potentially provide a more convenient oral alternative for the management of left ventricular thrombi than Warfarin. These medications do not require frequent monitoring and have less dru…
View article: Sick Sinus Syndrome and Takotsubo Cardiomyopathy
Sick Sinus Syndrome and Takotsubo Cardiomyopathy Open
Background . Takotsubo cardiomyopathy is associated with increased risk of ventricular arrhythmias, atrial fibrillation, and bradyarrhythmias. However, sinus node dysfunction is relatively infrequent in the setting of takotsubo cardiomyopa…
View article: Impella RP Support and Catheter-Directed Thrombolysis to Treat Right Ventricular Failure Caused by Pulmonary Embolism in 2 Patients
Impella RP Support and Catheter-Directed Thrombolysis to Treat Right Ventricular Failure Caused by Pulmonary Embolism in 2 Patients Open
Right ventricular failure secondary to pulmonary embolism is associated with morbidity and death. The Impella RP System has often been used for percutaneous mechanical circulatory support in patients with right ventricular failure from oth…
View article: AngioVac System Used for Vegetation Debulking in a Patient with Tricuspid Valve Endocarditis: A Case Report and Review of the Literature
AngioVac System Used for Vegetation Debulking in a Patient with Tricuspid Valve Endocarditis: A Case Report and Review of the Literature Open
AngioVac is a vacuum-based device approved in 2014 for percutaneous removal of undesirable materials from the intravascular system. Although numerous reports exist with regard to the use of the AngioVac device in aspiration of iliocaval, p…
View article: Preliminary Report on the Safety and Efficacy of Staged versus Complete Revascularization in Patients with Multivessel Disease at the Time of Primary Percutaneous Coronary Intervention
Preliminary Report on the Safety and Efficacy of Staged versus Complete Revascularization in Patients with Multivessel Disease at the Time of Primary Percutaneous Coronary Intervention Open
This study aims to determine the safety and efficacy of complete versus staged-percutaneous coronary intervention (PCI) of nonculprit lesions at the time of primary PCI in patients with multivessel disease. Recent trials had suggested that…
View article: Dexamethasone Associated ST Elevation Myocardial Infarction Four Days after an Unremarkable Coronary Angiogram—Another Reason for Cautious Use of Steroids: A Case Report and Review of the Literature
Dexamethasone Associated ST Elevation Myocardial Infarction Four Days after an Unremarkable Coronary Angiogram—Another Reason for Cautious Use of Steroids: A Case Report and Review of the Literature Open
Drug induced myocardial infarction is a known entity with different forms of steroids linked to coronary artery disease (CAD) either through promoting its traditional risk factors, inducing coronary spasm, or by other unidentified mechanis…
View article: Use of the Impella 2.5 left ventricular assist device in a patient with cardiogenic shock secondary to takotsubo cardiomyopathy
Use of the Impella 2.5 left ventricular assist device in a patient with cardiogenic shock secondary to takotsubo cardiomyopathy Open
We report a case of cardiogenic shock, believed to be secondary to stress-induced cardiomyopathy, managed by an Impella 2.5 assist device. Apical ballooning pattern was evident on left ventriculogram with no significant coronary artery dis…