Abdul-rahman Riyad Abdel-karim

Left circumflex artery occlusion during accessory pathway radiofrequency ablation: Be ready for the worst

Hamza A Abdul-Hafez, Reem A Abu-Alrub, Fateh Awwad, Abdul-rahman Riyad Abdel-karim

Wolff-Parkinson-White (WPW) syndrome is a tachyarrhythmia conduction disorder characterized by presence of an accessory pathway bypassing the atrioventricular (AV) node leading to tachyarrhythmia and rarely death. Radiofrequency (RF) ablation is considered the treatment of choice for such accessory pathway especially when associated …

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Evaluating Equivocal Left Main Stenosis with Fractional Flow Reserve – Not all Daughter Vessels are Created Equally

Ahmed A. Almomani, Abdul-rahman Riyad Abdel-karim

Fractional flow reserve (FFR) evaluation of intermediate left main coronary artery (LMCA) stenosis has been validated in clinical decision-making. However, the size of the daughter vessel, in which the FFR transducer is placed and the amount of myocardium it subtends, has received …

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The importance of malapposition in angiographically optimized stenting in contemporaneous interventions

Abdul-rahman Riyad Abdel-karim, Barry F. Uretsky

INTRODUCTION: Stenting has advanced the treatment of coronary artery disease, with angiography being historically the gold standard to assure adequate stent deployment. However, intravascular imaging modalities including intravascular ultrasound and optical coherence tomography have shown high rates of inadequate stent deployment in …

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Headache: Could it be Esophageal Cancer?

Mihir Brahmbhatt, Abdul-rahman Riyad Abdel-karim, Navanshu Arora

Brain metastasis in patients with primary esophageal carcinoma is rare and has a poor prognosis. Here we report a case with brain metastasis as the initial presentation for patient's esophageal cancer.

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DEATH OF STETHOSCOPES UNDER THE RULING OF DOOR-TO-BALLOON TIME

Abdelrahman Aly, Abdul-rahman Riyad Abdel-karim

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Interventricular Septal Hematoma and Coronary-Ventricular Fistula: A Complication of Retrograde Chronic Total Occlusion Intervention

Abdul-rahman Riyad Abdel-karim, Minh Vo, Michael L. Main, James Aaron Grantham

Interventricular septal hematoma is a rare complication of retrograde chronic total occlusion (CTO) percutaneous coronary interventions (PCI) with a typically benign course. Here we report two cases of interventricular septal hematoma and coronary-cameral fistula development after right coronary artery (RCA) CTO-PCI using …

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Dedicated versus hybrid myocardial perfusion PET: Comparative diagnostic accuracy in a propensity-matched population undergoing coronary angiography

Abhinav Sharma, Dany Jacob, Staci A. Courter, Anna Grodzinsky et autres

1764 Objectives Hybrid PET/CT has potential advantages (newer technology, higher resolution, CT for attenuation correction and coronary calcium identification) and disadvantages (expense, challenging registration, higher radiation, need for metal-artifact correction) compared to dedicated PET for Rb-82 myocardial perfusion imaging (MPI). The current …

Embolic protection device utilization during stenting of native coronary artery lesions with large lipid core plaques as detected by near‐infrared spectroscopy

Emmanouil S. Brilakis, Abdul-rahman Riyad Abdel-karim, Aristotelis Papayannis, Tesfaldet T. Michael et autres

BACKGROUND: Stenting of large lipid core plaques (LCPs), as assessed by near-infrared spectroscopy (NIRS), has been associated with periprocedural myocardial infarction (MI), possibly due to distal embolization. METHODS: An embolic protection device (EPD) was inserted before stenting in nine native coronary arteries …

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Role of embolic protection devices in ostial saphenous vein graft lesions

Abdul-rahman Riyad Abdel-karim, Aristotelis Papayannis, Arif Mahmood, Tesfaldet T. Michael et autres

BACKGROUND: Although embolic protection devices (EPDs) have been shown to be beneficial in saphenous vein graft (SVG) lesions, their role in the subgroup of ostial SVG lesions has received limited study. METHODS: The coronary angiograms and procedural outcomes of 109 patients undergoing …

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Association of coronary lipid core plaque with intrastent thrombus formation

Aristotelis Papayannis, Abdul-rahman Riyad Abdel-karim, Arif Mahmood, Bavana V. Rangan et autres

BACKGROUND: Optical coherence tomography (OCT) and near-infrared spectroscopy (NIRS) allow assessment of the anatomy (OCT) and composition (NIRS) of coronary lesions. We sought to examine the association between pre-stenting lipid core plaque (LCP), as assessed by NIRS and post-stenting thrombus formation, as …

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Abstract 8423: Prevalence and Outcomes of Intermediate Saphenous Vein Graft Lesions: Findings from the Stenting of Saphenous Vein Grafts Randomized-Controlled Trial

Abdul-rahman Riyad Abdel-karim, Monica da Silva, Christopher Lichtenwalter, James A. de Lemos et autres

Background: We sought to examine the prevalence and progression rate of intermediate SVG lesions in the Stenting Of Saphenous vein grafts (SOS) trial. Methods: The baseline and follow-up angiograms of the 80 patients participating in the SOS trial were analyzed to determine …

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In vivo characterization of coronary plaques: novel findings from comparing greyscale and virtual histology intravascular ultrasound and near-infrared spectroscopy

Jun Pu, Gary S. Mintz, Emmanouil S. Brilakis, Subhash Banerjee et autres

AIMS: To test the hypothesis that near-infrared spectroscopy (NIRS) combined with intravascular ultrasound (IVUS) would provide novel information of human coronary plaque characterization. METHODS AND RESULTS: Greyscale-IVUS, virtual histology (VH)-IVUS, and NIRS were compared in 131 native lesions (66 vessels) that were …

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