Search results for: M. Abdelfattah

Items from 1 to 20 out of 31 results

article

Secondary Prophylaxis of Gastric Variceal Bleeding: A Systematic Review and Network Meta‐Analysis

Karim T. Osman, Tarek Nayfeh, Ahmed M. Abdelfattah, Khaled Alabdallah, more

Liver Transplantation > 28 > 6 > 945 - 958

There is no clear consensus regarding the optimal approach for secondary prophylaxis of gastric variceal bleeding (GVB) in patients with cirrhosis. We conducted a systematic review and network meta‐analysis (NMA) to compare the efficacy of available treatments. A comprehensive search of several databases from each database's inception to March 23, 2021, was conducted to identify relevant randomized...

article

Incidence, treatment, and outcomes of acute myocardial infarction following transcatheter or surgical aortic valve replacement

Toshiaki Isogai, Anas M. Saad, Keerat Rai Ahuja, Shashank Shekhar, more

Catheterization and Cardiovascular Interventions > 99 > 3 > 877 - 888

Objectives This study aimed to evaluate the incidence, treatment, and outcomes of acute myocardial infarction (AMI) following transcatheter or surgical aortic valve replacement (TAVR or SAVR). Background Coronary artery disease is common in patients who undergo aortic valve replacement. However, little is known about differences in clinical features of post‐TAVR or post‐SAVR AMI. Methods We retrospectively...

article

Bayesian network meta‐analysis comparing cryoablation, radiofrequency ablation, and antiarrhythmic drugs as initial therapies for atrial fibrillation

Mahmoud Elsayed, Omar M. Abdelfattah, Ahmed Sayed, Rohan Madhu Prasad, more

Journal of Cardiovascular Electrophysiology > 33 > 2 > 197 - 208

Background Antiarrhythmic drugs (AADs) and catheter ablation are first line treatments of paroxysmal atrial fibrillation (PAF), however, there exists a paucity of data regarding the potential benefit of different catheter ablation technologies versus AADs as an early rhythm strategy. Objective To assess the safety and efficacy of cryoablation versus radiofrequency ablation (RFA) versus AADs as...

article

Association of hospital procedural volume with incidence and outcomes of surgical bailout in patients undergoing transcatheter aortic valve replacement

Toshiaki Isogai, Anas M. Saad, Nobuaki Michihata, Keerat Rai Ahuja, more

Catheterization and Cardiovascular Interventions > 99 > 1 > 160 - 168

Objectives This study sought to examine the association of hospital procedural volume with the incidence and outcomes of surgical bailout (SB) in patients who undergo transcatheter aortic valve replacement (TAVR). Background SB is required for serious complications during or after TAVR. It remains unclear whether hospital experiences affect the incidence and outcomes of SB. Methods We retrospectively...

article

Utilization and outcomes of transcatheter coil embolization for various coronary artery lesions: Single‐center 12‐year experience

Omar M. Abdelfattah, Anas M. Saad, Nicholas Kassis, Shashank Shekhar, more

Catheterization and Cardiovascular Interventions > 98 > 7 > 1317 - 1331

Objective Determining the outcomes of transcatheter coil embolization (TCE) for several coronary artery lesions. Background TCE has been used as a treatment modality for various lesions in the coronary circulation. However, data on the efficacy and safety of TCE to treat coronary artery fistula (CAF), left internal mammary artery (LIMA) side‐branch, coronary artery perforation (CAP), coronary artery...

article

Association of baseline kidney disease with outcomes of transcatheter mitral valve repair by MitraClip

Hitesh Raheja, Keerat Rai Ahuja, Salik Nazir, Anas M. Saad, more

Catheterization and Cardiovascular Interventions > 97 > 6 > E857 - E867

Objectives This study sought to determine the impact of baseline chronic kidney disease (CKD) on in‐hospital outcomes of transcatheter mitral valve repair with MitraClip (MC). Background MC is now an established treatment in high surgical risk patients. However, limited data are available on outcomes of MC in patients with baseline renal dysfunction. Methods The authors used data from January...

article

Impact of thoracic aortic aneurysm on outcomes of transcatheter aortic valve replacement: A nationwide cohort analysis

Nicholas Kassis, Anas M. Saad, Keerat Rai Ahuja, Mohamed M. Gad, more

Catheterization and Cardiovascular Interventions > 97 > 3 > 549 - 553

Background The use of transcatheter aortic valve replacement (TAVR) has expanded to patient populations of varying surgical risk in light of recent clinical trials, yet its role in patients with aortic stenosis and coexisting thoracic aortic aneurysm (TAA) is not well‐delineated. We aimed to evaluate whether risk factors and in‐hospital outcomes vary between TAVR patients with and without an unruptured...

article

Short‐term outcomes of transcatheter aortic valve replacement for pure native aortic regurgitation in the United States

Toshiaki Isogai, Anas M. Saad, Keerat R. Ahuja, Shashank Shekhar, more

Catheterization and Cardiovascular Interventions > 97 > 3 > 477 - 485

Objective We aimed to compare short‐term outcomes between transcatheter aortic valve replacement (TAVR) for pure aortic regurgitation (AR) and TAVR for aortic stenosis (AS). Background In patients with severe pure AR for whom surgical valve replacement is infeasible, TAVR is sometimes used off‐label. Methods Using the Nationwide Readmissions Database 2016–2017, we retrospectively identified patients...

article

Incidence and short‐term outcomes of surgical bailout after transcatheter mitral valve repair with the MitraClip system

Toshiaki Isogai, Anas M. Saad, Shashank Shekhar, Keerat Rai Ahuja, more

Catheterization and Cardiovascular Interventions > 97 > 2 > 335 - 341

Objectives This study sought to investigate the incidence and outcomes of surgical bailout (SB) after transcatheter mitral valve repair (TMVr) with MitraClip. Background TMVr poses a risk of serious procedural complications, possibly requiring urgent open surgery for SB. However, little is known about the risk of SB cases after TMVr. Methods We retrospectively identified patients who underwent...

article

The role of twinning in sustainable care for children with cancer: A TIPPing point? SIOP PODC Working Group on Twinning, Collaboration, and Support

Vikramjit S. Kanwar, Kevin R. Schwartz, Nihad Salifu, Ahmed M. Abdelfattah, more

Pediatric Blood & Cancer > 67 > 11 > n/a - n/a

With the World Health Organization (WHO) Global Initiative for Childhood Cancer, there is renewed interest in sustainable interventions to improve childhood cancer care in low‐/middle‐income countries (LMICs). Practitioners in LMICs have traditionally practiced “twinning,” i.e., targeted international pediatric oncology partnerships (TIPPs) between one or more institutions in a high‐income country...

article

The design and methodology of a usability protocol for the management of medications by families for aging older adults

Y. Quintana, D. Fahy, A. M. Abdelfattah, J. Henao, more

BMC Medical Informatics and Decision Making > 2019 > 19 > 1 > 1-5

Background Health research apps often do not focus on usability as a design priority. This is problematic when the population of interest is disproportionately underrepresented as users of mobile apps, especially observed with aging older adults (> = 75). Challenges with the adoption of health information technology (HIT) among this group are exacerbated by poor design and user interface/experience...

article

Water and soil decontamination of toxic heavy metals using aminosilica-functionalized-ionic liquid nanocomposite

Mohamed E. Mahmoud, Maher M. Osman, Amr A. Yakout, Amir M. Abdelfattah

Journal of Molecular Liquids > 2018 > 266 > C > 834-845

A chemical modification method is presented to establish a surface functionalization procedure of amino modified nanosilica (NS-amine) with 1-(3-cyanopropyl)-3-methylimidazolium-bis(trifluoromethylsulfonyl) type of ionic liquid, [CN-C₃-MIm]⁺[NTf₂]⁻ for the formation of a novel NS-amine-IL nanocomposite. Based on the TEM analysis and DLS technique, the diameter of the proposed nanocomposite was found...

article

Purification and characterization of a new thermophilic collagenase from Nocardiopsis dassonvillei NRC2aza and its application in wound healing

Amira Abood, Asmaa M.M. Salman, Azza M. abdelfattah, Amr E. El-Hakim, more

International Journal of Biological Macromolecules > 2018 > 116 > C > 801-810

A thermostable metallo-collagenase enzyme (150 kDa), recently identified in a newly isolated actinomycestes strain (Nocardiopsis dassonvillei NRC2aza), has been purified from natural source, characterized to have application in wound healing. A simple 3 step purification procedure gave an increase of purity by 6.23 fold with a specific activity of 387.2 U mg⁻¹. The enzyme activity showed stability...

article

Essential oils: effects of application rate and modality on potential for combating northern fowl mite infestations

E. M. Abdelfattah, G. Vezzoli, G. Buczkowski, M. M. Makagon

Medical and Veterinary Entomology > 32 > 3 > 304 - 310

The northern fowl mite (NFM), Ornithonyssus sylviarum (Mesostigmata: Macronyssidae), is the primary blood‐feeding ectoparasite found on poultry in the U.S.A. Three experiments were conducted in vitro to test the acaricidal properties of cade, garlic, lavender, lemongrass, pine and thyme essential oils against NFM, and to evaluate whether these effects are altered by adjusting oil application rates...

article

Proceedings of the 16th Annual UT-KBRIN Bioinformatics Summit 2016: proceedings

L. Leon Dent, Sammed N. Mandape, Siddharth Pratap, Jianan Dong, more

BMC Proceedings > 2017 > 11 > 9 > 1-6

chapter

2Vrms 16Ω switching headphone driver with 82% peak efficiency, 102 dB SNDR and 1.1mA/channel quiescent current

Khaled M. Abdelfattah, Michael M. Green

2017 IEEE 60th International Midwest Symposium on Circuits and Systems (MWSCAS) > 341 - 344

2017 IEEE 60th International Midwest Symposium on Circuits and Systems (MWSCAS)

A new headphone driver IC based on a switching output stage in continuous conduction mode is described. The driver uses a sliding-mode peak-valley control scheme to regulate the inductor current. The output stage is switched between the battery voltage and the output of an integrated non-regulated inverting charge pump, and a second-order loop filter is used to regulate the output voltage. The system...

article

Orthogonal Plate Fixation With Corrective Osteotomy for Treatment of Distal Radius Fracture Malunion

Michael P. Gaspar, Jenniefer Y. Kho, Patrick M. Kane, Hesham M. Abdelfattah, more

The Journal of Hand Surgery > 2017 > 42 > 1 > e1-e10

To report outcomes of patients with distal radius fracture malunions treated with corrective osteotomy and orthogonal volar and radial “90-90” plate fixation.We performed a retrospective review of all patients who underwent distal radius corrective osteotomy and 90-90 fixation from January 2008 through December 2014. Demographic data, injury history, prior treatments, and clinical examination values...

chapter

Eye movements as information markers in EEG data

Sherif M. Abdelfattah, Kathryn E. Merrick, Hussein A. Abbass

2016 IEEE Symposium Series on Computational Intelligence (SSCI) > 1 - 7

2016 IEEE Symposium Series on Computational Intelligence (SSCI)

Artifacts such as voluntarily and involuntarily muscle movements are usually seen as a source of noise in EEG signals. In this paper, we see artifacts as a source of information in a signal. For example, eye movements can generate a traceable change in the EEG signals. We use eye movements as an effective marker for direction of movement. We propose two experiments for classification of four eye movement...

article

Recurrent cubital tunnel syndrome treated with revision neurolysis and amniotic membrane nerve wrapping

Michael P. Gaspar, Hesham M. Abdelfattah, Ian W. Welch, Michael M. Vosbikian, more

Journal of Shoulder and Elbow Surgery > 2016 > 25 > 12 > 2057-2065

Perineural scarring of the ulnar nerve is a predominant cause of symptom recurrence after surgical treatment for primary cubital tunnel syndrome (CuTS). We report our preliminary experience in revision ulnar nerve decompression and nerve wrapping with an amniotic membrane allograft adhesion barrier for treatment of recurrent CuTS.We performed a retrospective review with prospective follow-up of patients...

article

Allogeneic hematopoietic stem cell transplantation for non-malignant hematological disorders

Hossam K. Mahmoud, Alaa M. Elhaddad, Omar A. Fahmy, Mohamed A. Samra, more

Journal of Advanced Research > 2015 > 6 > 3 > 449-458

Allogeneic hematopoietic stem cell transplantation (allo-HSCT) from a geno-identical matched sibling (MSD) is one of the most successful therapies in patients with non-malignant hematological disorders. This study included 273 patients with severe aplastic anemia (SAA), 152 patients with B-Thalassemia major (BTM), 31 patients with Fanconi’s anemia (FA), 20 patients with congenital immunodeficiency...

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INFONA - science communication portal

Search results for: M. Abdelfattah

Secondary Prophylaxis of Gastric Variceal Bleeding: A Systematic Review and Network Meta‐Analysis

Incidence, treatment, and outcomes of acute myocardial infarction following transcatheter or surgical aortic valve replacement

Bayesian network meta‐analysis comparing cryoablation, radiofrequency ablation, and antiarrhythmic drugs as initial therapies for atrial fibrillation

Association of hospital procedural volume with incidence and outcomes of surgical bailout in patients undergoing transcatheter aortic valve replacement

Utilization and outcomes of transcatheter coil embolization for various coronary artery lesions: Single‐center 12‐year experience

Association of baseline kidney disease with outcomes of transcatheter mitral valve repair by MitraClip

Impact of thoracic aortic aneurysm on outcomes of transcatheter aortic valve replacement: A nationwide cohort analysis

Short‐term outcomes of transcatheter aortic valve replacement for pure native aortic regurgitation in the United States

Incidence and short‐term outcomes of surgical bailout after transcatheter mitral valve repair with the MitraClip system

The role of twinning in sustainable care for children with cancer: A TIPPing point? SIOP PODC Working Group on Twinning, Collaboration, and Support

The design and methodology of a usability protocol for the management of medications by families for aging older adults

Water and soil decontamination of toxic heavy metals using aminosilica-functionalized-ionic liquid nanocomposite

Purification and characterization of a new thermophilic collagenase from Nocardiopsis dassonvillei NRC2aza and its application in wound healing

Essential oils: effects of application rate and modality on potential for combating northern fowl mite infestations

Proceedings of the 16th Annual UT-KBRIN Bioinformatics Summit 2016: proceedings

2Vrms 16Ω switching headphone driver with 82% peak efficiency, 102 dB SNDR and 1.1mA/channel quiescent current

Orthogonal Plate Fixation With Corrective Osteotomy for Treatment of Distal Radius Fracture Malunion

Eye movements as information markers in EEG data

Recurrent cubital tunnel syndrome treated with revision neurolysis and amniotic membrane nerve wrapping

Allogeneic hematopoietic stem cell transplantation for non-malignant hematological disorders

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