Mahmoud Abdelshakor

Mahmoud Abdelshakor


Research Focus & Metrics

Academic Career Length

5Years (2022-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

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10 November 2023 in Medicine
Verified
Journal Article
Open access
Wael HafezWael Hafez
Wael Hafez
PNPrashant Nasa
Prashant Nasa
AKAhmed Khairy
Ahmed Khairy
MJMohan Jose
Mohan Jose
MAMahmoud Abdelshakor
Mahmoud Abdelshakor
SNSimon Msc Nader
Simon Msc Nader
Cytokines, notably interleukin-6 (IL-6), increase considerably in patients with severe corona virus disease 2019 (COVID-19). This vigorous immune response may cause end-organ failure or death; hence, measuring IL-6 in the context of patient characteristics may help predict outcomes and encourage early comprehensive therapy. This study investigated the association between serum IL-6 levels, COVID-19 severity, and demographic, clinical, and biochemical characteristics. COVID-19 inpatients in NMC hospitals were investigated between November 2020 and November 2021. Several patient variables related to serum IL-6 and COVID-19 severity have been examined. The study included 374 COVID-19 inpatients, 235 of whom had severe disease with a median age of 51. The elderly had an increased risk of severe COVID-19 (73.8%) compared with young adults (71%), with higher white blood cells, D-dimer, Lactate dehydrogenase, creatinine, ferritin, prothrombin time, Procalcitonin, and fibrinogen levels (P < .001). C-reactive protein, troponin, intensive care unit admission, disease severity score, and mortality were significantly associated with higher serum IL-6 levels (P = .05) in the univariate analysis, but this significance disappeared in the multivariate analysis. IL-6, along with other demographic and clinical variables affected COVID-19 severity. These characteristics may predict patients at risk of severe disease and assist in establishing early comprehensive disease outcome strategies. Large-scale clinical research is needed to emphasize IL-6 and COVID-19.

15 January 2024 in International Journal of Surgery
Verified
Journal Article
Open access
SNSimon Nader
Simon Nader
AMAmr Massoud
Amr Massoud
FAFeras Al-Obeidat
Feras Al-Obeidat
WMWaleed Farouk Mohamed
Waleed Farouk Mohamed
Wael HafezWael Hafez
Wael Hafez
ICIvan Cherrez-Ojeda
Ivan Cherrez-Ojeda
Background: Prostate cancer (PCa) is a prevalent cancer with significant morbidity and mortality rates. In most cases, PCa remains asymptomatic until advanced disease manifests with symptoms, such as benign prostate hyperplasia. Timely detection and better management have improved overall survival in patients with PCa, and fatigue, reduced physical activity, and impaired quality of life (QoL) remain major challenges that impact daily life. Objective: This study aimed to systematically review and conduct a meta-analysis to evaluate the impact of aerobic and resistance training on fatigue, QoL, and physical activity in PCa patients undergoing treatment. Material and methods: A comprehensive literature search was conducted using the PubMed, Cochrane Library, and clinicaltrials.gov databases, adhering to the PRISMA guidelines. Twenty studies, involving 1393 participants, were included in the final analysis. The inclusion criteria were studies that evaluated the effects of exercise interventions relative to passive controls in patients with PCa were included. The primary outcomes of interest were fatigue, QoL, and PA. Data from eligible studies were extracted, and a meta-analysis was performed using RevMan 5.40. Results: Twenty studies met our inclusion criteria. Data analysis of the included studies demonstrated a significant improvement in QoL among PCa patients in the exercise group compared to the control group (SMD=0.20, 95% CI=0.07–0.34, P=0.003). However, there was no significant association between exercise and fatigue (SMD=0.07, 95% CI=−0.13–0.26, P=0.51). Sensitivity analysis did not alter these findings. Regarding physical activity outcomes, the control group exhibited superior performance in the 400 m walk test (P<0.05). No significant associations were found between exercise and the 6 m walk test or up-and-go time. Conclusion: This systematic review revealed that aerobic and resistance training enhance the QoL of patients with PCa, although it has a limited impact on fatigue and physical activity levels. These findings advocate a shift in clinical practice and the positioning of exercise as a core component of comprehensive cancer care. Tailoring exercise regimens according to individual patient needs and treatment stages should become the norm in treatment planning. This approach goes beyond physical wellness and addresses the psychological and emotional facets of cancer management. Moreover, there is an evident need for further research to develop holistic exercise interventions that effectively address the complex dynamics of fatigue, physical activity, and QoL in this patient group.

29 July 2022 in Life
Verified
Journal Article
Open access
PDF file
Wael HafezWael Hafez
Wael Hafez
SAShougyat Ahmed
Shougyat Ahmed
NANihad Abbas
Nihad Abbas
KAKamran Ahmed
Kamran Ahmed
SKSamera Kamran
Samera Kamran
AAAhmed Abdelrahman
Ahmed Abdelrahman
(1) Background: The association between ABO blood groups and COVID-19 outcomes was investigated in several studies. The results were controversial. This study aimed to explore the association between ABO blood groups and COVID-19 outcomes. (2) Methods: This retrospective study included 303 COVID-19 patients treated at the NMC Royal Hospital in the United Arab Emirates between 8 April 2020 and 30 June 2020. (3) Results: The mean age of patients included in the study was 39.3 ± 10.7 years, and 72.9% of patients were males. The prevalence of blood groups O, A, B, and AB was 40.3%, 27.7%, 25.1%, and 6.9%, respectively. The correlation between ABO blood groups and COVID-19 outcomes was insignificant except in the AB group, with significantly higher odds of disease severity. Increased age, higher body mass index (BMI), and being of male gender increased the risk for pneumonia among all blood groups. Both increased age and higher BMI increased the risk of mortality, and increased age increased the risk of disease severity. Troponin and platelet counts were significantly different in the A group compared to the non-A groups. Time to viral clearance was not different among blood groups. However, adjustment for Rh groups resulted in a significantly shorter time in the B group. (4) Conclusions: There was no significant association between ABO blood groups and COVID-19 outcomes, with the exception of group AB.

12 February 2022 in Antibiotics
Verified
Journal Article
Open access
PDF file
Wael HafezWael Hafez
Wael Hafez
MZMohamad Azzam Ziade
Mohamad Azzam Ziade
AAArun Arya
Arun Arya
HSHusam Saleh
Husam Saleh
MAMahmoud Abdelshakor
Mahmoud Abdelshakor
AAAhmed Abdelrahman
Ahmed Abdelrahman
(1) Background: Severe COVID-19 outcomes are associated with cytokine release syndrome, characterized by the release of several immune modulators, including Interleukin-6 (IL-6). Tocilizumab (TCZ) is an IL-6 receptor antagonist used to treat rheumatic arthritis. The study aimed to evaluate the efficacy and safety of TCZ against COVID-19. (2) Methods: This was a retrospective study including 49 severe COVID-19 patients who received TCZ therapy in NMC Royal Hospital, UAE. (3) Results: Before Tocilizumab administration, the median temperature was 37.0 (IQR 36.0–39.6), and after day seven, the median reduced to 36.5 (IQR 35.8–37.9), p > 0.001. Thirty (61.2%) patients were admitted to the ICU, of which, eight (16.3%) were on WHO scale 4, sixteen (32.6%) on scale 5, and six (20.0%) on scale 6. TCZ reduced inflammatory markers over time, including CRP, D-Dimer, Ferritin, and Fibrinogen. By the end of week seven, 14 patients died (28.6%) while 35 (71.4%) improved and were discharged. (4) Conclusions: The study showed limited improvements in COVID-19 outcomes with TCZ therapy and highlighted the importance of D-Dimer monitoring for possible risk of thrombosis. Additionally, it could be recommended to upgrade the anti-coagulation dose to therapeutic levels once TCZ therapy is decided upon.

19 December 2022 in Healthcare
Verified
Journal Article
Open access
PDF file
Wael HafezWael Hafez
Wael Hafez
MAMahmoud Abdelshakor
Mahmoud Abdelshakor
SKSamy Kishk
Samy Kishk
AGAmr Gebril
Amr Gebril
MGmuneir Gador
muneir Gador
AAAhmed Abdelrahman
Ahmed Abdelrahman
(1) Background: Body mass index (BMI) was observed to affect COVID-19 outcomes; however, the complete spectrum of clinical outcomes concerning BMI remains unexplored. The current study aimed to investigate the correlation between BMI and the severity and mortality of COVID-19, as well as ICU admission, radiological findings, clinical presentation, and time to viral clearance. (2) Methods: This retrospective study included 1796 multiethnic patients with COVID-19 treated at NMC Royal Hospital, Abu Dhabi, UAE. (3) Results: COVID-19’s adjusted odds of severity increased by 3.7- and 21.5-fold in classes I and III, respectively (p = 0.001). The odds of mortality were not significantly different after adjustment for age, sex, and race. The adjusted odds of ICU admission increased significantly by 3-fold and non-significantly by 4-fold in obesity classes I and II, respectively. Pneumonia was significantly higher in patients who were overweight and class I, II, and III obese. Furthermore, class III obese patients had a greater risk of presenting with combined respiratory and gastrointestinal manifestations (p < 0.001). The median time to viral clearance with a BMI > 40 kg/m2 was moderately higher than that with a BMI < 40 kg/m2. (4) Conclusions: High BMI was associated with pneumonia, ICU admission, severity, and mortality due to COVID-19.

28 December 2022 in Healthcare
Verified
Journal Article
Open access
PDF file
Wael HafezWael Hafez
Wael Hafez
HSHusam Saleh
Husam Saleh
MAMahmoud Abdelshakor
Mahmoud Abdelshakor
SAShougyat Ahmed
Shougyat Ahmed
SOSana Osman
Sana Osman
MGmuneir Gador
muneir Gador
(1) Background: Obesity is a risk factor for severe COVID-19 outcomes. Obesity can interfere with the action of vitamin C. The study aimed to investigate the association between BMI and severe outcomes of COVID-19 while considering vitamin C levels; (2) Methods: This was a retrospective study of 63 COVID-19 patients treated at the NMC Royal Hospital, United Arab Emirates; (3) Results: There was no significant difference in vitamin C levels among patients in all BMI categories (p > 0.05). The risk of severe COVID-19 significantly increased by 5.4 times among class 1 obese patients compared with normal BMI (OR = 5.40, 95%CI: (1.54–21.05), p = 0.010). Vitamin C did not affect the risk of COVID-19 severity or mortality across BMI categories (p = 0.177, p > 0.05, respectively). The time till viral clearance was significantly different among patients in different BMI categories when vitamin C levels were considered (p = 0.02). Although there was no significant difference in vitamin C levels across BMI categories, there was a significant interaction between vitamin C levels and viral clearance rate in obese patients; (4) Conclusions: Given the safety of vitamin C supplements and our findings, proper vitamin C uptake and supplementation for patients of various BMI levels are encouraged.