Publications by authors named "Ghada Ahmad"

Cancer's etiology is linked to oxidative stress. As a result, it's vital to find effective natural antioxidant remedies. Salix mucronata and Triticum spelta plant extracts were prepared using five different solvents and examined for their cytotoxicity against liver HepG2 cancer cell line.

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Background: Cardiac magnetic resonance imaging (CMRI) is the gold standard for myocardial scar evaluation. Although ideal for substrate assessment in ventricular tachycardia (VT), most patients have an implantable cardioverter-defibrillator (ICD) at presentation for ablation. This study evaluates the ICD artifact burden during standard late gadolinium enhancement CMRI (LGE-CMRI) evaluation of myocardial scar in VT patients with ICDs.

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Background: Intracardiac echocardiography (ICE) is increasingly used to guide complex ablation procedures. This study aimed to assess the scar substrate of ventricular tachycardia (VT) by ICE in patients undergoing VT ablation.

Methods: In 22 patients undergoing VT ablation (10 ischemic, 12 nonischemic), the Biosense CARTOSOUND module (Biosense Webster, Diamond Bar, CA, USA) was used for three-dimensional reconstruction of the ventricles.

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Introduction: During mapping and ablation procedures, the movement of large ferromagnetic items (i.e., fluoroscopic equipment) introduce heterogeneities in the electromagnetic field, which may affect the accuracy of electromagnet-based navigation.

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Unlabelled: The integration of myocardial scar models in 3-dimensional (3D) mapping systems may provide a novel way of helping to guide ventricular tachycardia (VT) ablations. This study assessed the value of (201)Tl SPECT perfusion imaging to define ventricular myocardial scar areas and to characterize electrophysiology voltage-derived myocardial substrate categories of scar, border zone (BZ), and normal myocardium regions. Scar and BZ regions have been implicated in the genesis of ventricular arrhythmias.

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Article Synopsis
  • The study explores the use of contrast-enhanced cardiac MRI in patients with implanted cardioverter-defibrillators (ICDs) to improve the process of ventricular tachycardia (VT) ablation by creating detailed 3D scar maps.
  • Results indicate that MRI findings helped to accurately locate areas for ablation, improving the success rates by minimizing errors in voltage mapping caused by suboptimal catheter contact.
  • Overall, integrating MRI with clinical mapping enhances the effectiveness of VT ablation procedures by providing better anatomical guidance and identifying viable myocardial tissue.
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