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9 citation(s) found for "Ahmed, Abdelrahman".

Evolving clinical burden of inflammatory bowel disease in the United Arab Emirates: a two-decade analysis of diagnoses and disease severity
Ahmed, Hosameldin Abdelrahman, Alzaabi, Mohamed Nasir, Swaid, Thaer Khaleel, Khan, Shaima , Ali, Ameirah Badr Abdullah Al, Tenaiji, Khalifa Al, Alahmad, Maryam A, Omar, Nadeen Mamon, Ahmed, Enas Fouad, Hosani, Ibrahim Al, Ahmed, Ishtiaq, Kumar, Kishore Kumar Chitra, Bukasa, Laurette L, Jess, Tine, Marzooqi, Saeed H Al, Malik, Talha A, Quraishi, Mohammed Nabil , Jess, Tine , Jess, T , Ahmed, Hosameldin Abdelrahman, Alzaabi, Mohamed Nasir, Swaid, Thaer Khaleel, Khan, Shaima Wasim , Ali, Ameirah Badr Abdullah Al, Tenaiji, Khalifa Al, Alahmad, Maryam A, Omar, Nadeen Mamon, Ahmed, Enas Fouad, Hosani, Ibrahim Al, Ahmed, Ishtiaq, Kumar, Kishore Kumar Chitra, Bukasa, Laurette L, Marzooqi, Saeed H Al, Malik, Talha A, Quraishi, Mohammed Nabil

Mayo Clinic

Frontline Gastroenterology | September 16, 2025 | Volume: 17 | Issue: 4 | Pages: 312-321

10.1136/flgastro-2025-103345 Get It

Objective Inflammatory bowel disease (IBD) is increasingly recognised in the Middle East, but limited regional data hinder a clear understanding of its burden. We aimed to examine trends in IBD diagnoses, disease phenotypes and predictors of poor outcomes at a major tertiary referral centre in the United Arab Emirates (UAE). Methods In this retrospective observational study, we evaluated diagnostic trends in a cohort of 600 Arab patients between 2002 and June 2025 and analysed detailed phenotypes in a subcohort of 414 patients diagnosed since 2012. Results We observed a nearly 13-fold increase in new IBD diagnoses among Arab patients at our centre between 2002 and 2024. This cohort (median age at diagnosis 25 years; 65% Crohn’s disease (CD; n=269), 35% ulcerative colitis (UC; n=145)) demonstrated a sharper rise in CD compared with UC, with CD being diagnosed at a significantly younger age (median 25 years vs 30 years, p=0.001). A substantial proportion of patients with CD presented with complicated disease defined as stricturing (B2; 22%, n=59), penetrating (B3; 17%, n=46) and perianal (34%, n=92) disease. Ileocolonic (L3) disease was a significant predictor for presenting with a complicated phenotype (OR 3.89). Penetrating (OR 13.9), stricturing (OR 3.38) and perianal (OR 2.22) disease were significant predictors for requiring surgery. 84% of patients with CD and 62% of patients with UC were exposed to advanced therapy. A diagnosis of CD and younger age at diagnosis were associated with a higher likelihood of needing advanced therapy. Conclusions This study provides the most comprehensive data set on IBD diagnoses and phenotypes in the UAE to date, highlighting a pronounced rise in IBD overall and of aggressive disease presentations in CD in particular.
Stent fixation could reduce the stent migration rate: a comprehensive systematic review and meta-analysis
Awad, Esraa, Bahnasy, Ahmed, Narouz, Youssef, Elmarzouky, Doaa A., Albawri, Amira A., Harash, Yara M., Othman, Ali M., Ali, Alaa E., Balouz, Manar A., Hussein, Ahmed , Ahmed, Fatma Abdelrahman , Alaeb, Mohammed A., Megawer, Rana, Awad, Abdelaziz A. , Awad, Esraa, Othman, Ali M., Hussein, Ahmed Abdelgayed M., Ahmed, Fatma S., El-Khalifa, Basma M.

Mayo Clinic

No container title available | September 9, 2025 | Volume: No volume available | Issue: No issue available | Pages: No page available

10.21203/rs.3.rs-7457023/v1 Get It

Abstract Background Endoscopic placement of self-expandable metal stents (SEMS) is a minimally invasive intervention, aiming to restore luminal patency in GIT obstruction patients. As stent migration is considered a major sequela, techniques for its fixation have been established. This study aims to assess the efficacy of stent fixation using either endoscopic suture fixation or over-the-scope clips (OTSC). Methods Following the PRISMA (Preferred Reporting Items for Systematic Reviews and Meta-Analyses) guidelines, we searched available databases (PubMed, Scopus, and Web of Science) to identify eligible studies reported up to January 2025. Using RevMan 5.4, we reported outcomes as odds ratios (OR) and confidence intervals (CIs). A P-value ≤ 0.05 was considered statistically significant. Results Twelve studies were included in this meta-analysis, with a total of 1136 patients. The pooled OR for stent fixation is 0.32 (95% CI: 0.19–0.57; p < 0.001), with moderate heterogeneity (I² = 59%, P = 0.005). According to the subgroup analysis in relation to the fixation method, suture fixation yields a pooled OR of 0.37 (95% CI: 0.19–0.69; p = 0.002), and OTSC fixation yields a pooled OR of 0.25 (95% CI: 0.11–0.54; p = 0.0004). There is no statistically significant difference between these subgroups (p = 0.45, I² = 0%). There was no statistically significant difference in the rates of adverse events; with a pooled OR of 0.71 (95% CI: 0.33–1.54), and substantial heterogeneity (I 2 = 73%; P = 0.002). Conclusion Statistically significant lower stent migration rates were reported following either endoscopic suture fixation or OTSC, along with higher clinical success rates. Future clinical trials with longer follow-up durations are recommended to accurately update the guidelines.
High-Sensitivity Troponin: Revealing the Ominous Implications of Myocardial Injury in Critical Illness*
Ahmed, Abdelrahman , Jaffe, Allan S. , Ahmed, Abdelrahman M, Jaffe, Allan S. , Wiley, Brandon M.

Mayo Clinic

Critical Care Medicine | August 21, 2021 | Volume: 49 | Issue: 9 | Pages: 1572-1575

10.1097/ccm.0000000000005048 | PMID 34413271 Get It

Abstract 13910: Importance of Non-invasive Estimates of Left Ventricular Filling Pressures in Critically Ill Patients
Anavekar, Nandan S., Jaffe, Allan S. , Ahmed, Abdelrahman , Wiley, Brandon M. , Jentzer, Jacob C. , Jaffe, Allan S.

Mayo Clinic

Circulation | May 10, 2021 | Volume: 142 | Issue: Suppl_3 | Pages: No page available

10.1161/circ.142.suppl_3.13910 Get It

Introduction: The presence of cardiac dysfunction predicts adverse outcomes in the intensive care unit (ICU). We explored the relationship of cardiac injury and left ventricular (LV) systolic and diastolic dysfunction (LVDD) to outcomes in critically ill patients. Methods: This is a retrospective analysis of adult medical ICU admissions from May, 2018 through October 2019. Patients with elevated high-sensitivity troponin T (hs-cTnT) and an echocardiogram performed within 72 hours of admission were included. Patients were classified as having normal LV diastolic function, isolated LVDD, concomitant LV diastolic and systolic dysfunction (LVDDSD) or indeterminate LV diastolic function based on American Society of Echocardiography 2016 guidelines. LV systolic dysfunction was defined as an ejection fraction (EF) < 50%. Results: Overall, 222 patients were included. LVDD was seen in 123 patients (55.4%). Thirty patients (13.5%) were classified with indeterminate diastolic function and 56 normal diastolic function (25.2%). Of those with LVDD , 59.3% had LVDDSD while isolated LVDD was seen in 40.7%.Patients with LVDDSD had a higher median hs-cTnT at baseline compared to patients with isolated LVDD [102ng/L IQR (50-257) vs. 77 ng/L (33.5-166); p=0.047]. Medial e’ velocity and tricuspid valve systolic regurgitant velocity were often associated with LV systolic dysfunction (p=0.0172 and 0.0013, respectively). LVDDSD was associated with a longer length of stay than patients with isolated LVDD [2.9 (1.6-4.0) vs.1.8 (1.1-3.3); p-value 0.03].Twenty-nine patients died during their ICU stay (13%). Patients with LVDDSD had 9.6-fold higher odds of dying in the ICU than patients with isolated LVDD (p=0.0048). Reduced medial e’ velocity (OR 0.63, CI 0.4-1.0, p=0.0285) and increased E/e’ (OR 1.08, CI 1.01-1.15, p=0.0192) were associated with ICU mortality. The association between LVEF<50% and ICU mortality was less pronounced (OR 0.95, CI 0.01-0.98; p=0.0023). Conclusions: Concomitant LV systolic and diastolic dysfunction and measures of increased cardiac filling pressures are strong predictors of mortality.
360: Cardiac Arrest and Cardiogenic Shock in the Cardiac Intensive Care Unit
Barsness, Gregory W. , Ahmed, Abdelrahman , Tabi, Meir , Kashani, Kianoush , Jentzer, Jacob C.

Mayo Clinic

Critical Care Medicine | December 18, 2020 | Volume: 49 | Issue: 1 | Pages: 169-169

10.1097/01.ccm.0000727328.43470.92 Get It

Shock Severity and Hospital Mortality In Out of Hospital Cardiac Arrest Patients Treated With Targeted Temperature Management
Burstein, Barry , Ahmed, Abdelrahman , Burstein, Barry J, Tabi, Meir , Dezfulian, Cameron , Kashani, Kianoush , Jentzer, Jacob C.

Mayo Clinic

Shock | August 7, 2020 | Volume: 55 | Issue: 1 | Pages: 48-54

10.1097/shk.0000000000001600 | PMID 32769819 Get It

ABSTRACT Background: Shock in patients resuscitated after out of hospital cardiac arrest (OHCA) is associated with an increased risk of mortality. We sought to determine the associations between lactate level, mean arterial pressure (MAP), and vasopressor/inotrope doses with mortality. Methods: Retrospective cohort study of adult patients with OHCA of presumed cardiac etiology treated with targeted temperature management (TTM) between December 2005 and September 2016. Multivariable logistic regression was performed to determine predictors of hospital death. Results: Among 268 included patients, the median age was 64 (55, 71.8) years, including 27% females. OHCA was witnessed in 89%, OHCA rhythm was shockable in 87%, and bystander CPR was provided in 64%. Vasopressors were required during the first 24 h in 60%. Hospital mortality occurred in 104 (38.8%) patients. Higher initial lactate, peak Vasoactive-Inotropic Score (VIS), and lower mean 24-h MAP were associated with higher hospital mortality (all P < 0.001). After multivariable regression, both higher initial lactate (adjusted OR 1.15 per 1 mmol/L higher, 95% CI 1.00–1.31, P = 0.03) and higher peak VIS (adjusted OR 1.20 per 10 units higher, 95% CI 1.10–1.54, P = 0.003) were associated with higher hospital mortality, but mMAP was not (P = 0.92). However, patients with a mMAP < 70 mm Hg remained at higher risk of hospital mortality after multivariable adjustment (adjusted OR 9.30, 95% CI 1.39–62.02, P = 0.02). Conclusions: In patients treated with TTM after OHCA, greater shock severity, as reflected by higher lactate levels, mMAP < 70 mmHg, and higher vasopressor requirements during the first 24 h was associated with an increased rate of hospital mortality.
Recurrent Stroke Due to Pulmonary Vein Thrombosis in a Patient with Metastatic Lung Adenocarcinoma
Aldiwani, Haider , Kumar, Kartik , Shokr, Mohamed , Cardozo, Shaun , Ahmed, Abdelrahman

Mayo Clinic

American Journal of Case Reports | June 4, 2020 | Volume: 21 | Issue: No issue available | Pages: No page available

10.12659/ajcr.923554 | PMID 32712617 Get It

Acute reversible left ventricular systolic dysfunction associated with 5-fluorouracil therapy: a rare and increasingly recognised cardiotoxicity of a commonly used drug
Mishra, Tushar , Shokr, Mohamed , Ahmed, Abdelrahman , Afonso, Luis

Mayo Clinic

BMJ Case Reports | September 13, 2019 | Volume: 12 | Issue: 9 | Pages: e230499

10.1136/bcr-2019-230499 | PMID 31519717 Get It

5-Fluorouracil (5-FU) is the third most common chemotherapeutic agent for treating solid cancers and the second most common to cause cardiotoxicity. We present a rare case of acute reversible severe left ventricular systolic dysfunction associated with 5-FU. A 54-year-old woman with a history of stage IV gastric cancer presented with features of transient ischaemic attack after receiving the first dose of FLOT (5-FU, leucovorin, oxaliplatin and docetaxel). During the diagnostic workup, it was found that her ejection fraction was severely reduced to 15% with features of global hypokinesis, which later improved back to 65% within 13 days. These cases challenge our current understanding of the underlying mechanisms of this cardiotoxicity. Additionally, even though the patient did not experience any cardiac symptoms, it is important to monitor these patients closely as they are at high risk for fatal complications like arrhythmia and thrombus formation.
Seasonal variation in hospitalization outcomes in patients admitted for heart failure in the United States
Akintoye, Emmanuel , Briasoulis, Αlexandros , Egbe, Alexander C. , Alliu, Samson , Sheikh, Muhammad Adil , Singh, Manmohan , Ahmed, Abdelrahman , Mallikethi‐Reddy, Sagar , Levine, Diane , Briasoulis, Alexandros, Alliu, Samson , Briasoulis, Alexandros , Adegbala, Oluwole Muyiwa

Mayo Clinic

Clinical Cardiology | September 5, 2017 | Volume: 40 | Issue: 11 | Pages: 1105-1111

10.1002/clc.22784 | PMID 28873233 Get It

BackgroundThere is lack of evidence of the impact of varying season on heart failure (HF) hospitalization outcomes in the U.S.HypothesisHF hospitalization outcomes exhibit significant seasonal variation in the U.S.MethodsUsing data from the National Inpatient Sample (2011‐2013), seasonal variation was classified based on meteorological classification of Northern Hemisphere–Spring, Summer, Fall, & Winter–and analysis was conducted via multivariable‐adjusted mixed‐effect model.ResultsAn estimated 2.8 million adults were hospitalized for HF in the U.S. from 2011 to 2013. Of all hospitalizations, admissions were highest in Winter (27%), followed by Spring (26%), Fall (24%), and Summer (23%). The overall mortality rate was 3.1%. Compared with Spring, there was significantly lower mortality in Summer (odds ratio [OR]: 0.95, 95% CI: 0.91‐0.99) and Fall (OR: 0.94, 95% CI: 0.89‐0.98), but the highest mortality was in Winter (OR: 1.06, 95% CI: 1.02‐1.11). In addition, mean length of stay and median cost of hospitalization were highest in Winter (5.3 days, USD7459, respectively) and lowest in Summer (5.1 days, USD7181, respectively). However, age and sex differences existed (e.g. seasonal variation in inpatient mortality was only significant for patients age ≥65 years, and, comparedwith the Spring season, males had higher risk of inpatient mortality in Winter (OR: 1.10, 95% CI: 1.04‐1.17) and females had lower risk of inpatient mortality in Summer (OR: 0.94, 95% CI: 0.88‐1.00) and Fall (OR: 0.92, 95% CI: 0.87‐0.98).ConclusionsAmong HF patients in the U.S., hospitalization outcomes were worse in Winter but better in Summer.