Sign in to use this feature.

Years

Between: -

Subjects

remove_circle_outline
remove_circle_outline
remove_circle_outline
remove_circle_outline
remove_circle_outline
remove_circle_outline

Journals

Article Types

Countries / Regions

Search Results (6)

Search Parameters:
Authors = Mahmoud Abdelshakor

Order results
Result details
Results per page
Select all
Export citation of selected articles as:
20 pages, 4301 KiB  
Article
A Qualitative Investigation of the Obstacles Inherent in the Implementation of Building Information Modeling (BIM)
by Abdulrahman Altassan, Mahmoud Othman, Emad Elbeltagi, Mohammed Abdelshakor and A. Ehab
Buildings 2023, 13(3), 700; https://doi.org/10.3390/buildings13030700 - 7 Mar 2023
Cited by 4 | Viewed by 3539
Abstract
The Middle East construction industry is fragmented, which makes project data inaccessible and underutilized. Building information modeling (BIM) provides innovative solutions to the AEC industry. Due to a lack of awareness of BIM’s successful processes, protocols, and workflows, some Middle Eastern organizations have [...] Read more.
The Middle East construction industry is fragmented, which makes project data inaccessible and underutilized. Building information modeling (BIM) provides innovative solutions to the AEC industry. Due to a lack of awareness of BIM’s successful processes, protocols, and workflows, some Middle Eastern organizations have tried to create their own systems but have not always chosen BIM. Some users did not comprehend BIM’s benefits, and the construction business was not ready for BIM technology. Furthermore, BIM’s benefits were not well known. This study intends to investigate construction practitioners’ awareness of the BIM field, the BIM adoption situation, and procedures in Middle Eastern design companies, by identifying and assessing construction professionals’ perceptions of impediments to BIM implementation in Middle Eastern construction. This research conducted a semi-structured interview to collect data and information from design teams currently adopting BIM at the project design stage. Thirteen of thirty-nine accepted to participate, with four invalid samples. Data collection reached a saturation point after the fifth interview. The descriptive and empirical analysis showed few BIM studies, lack of knowledge, insufficient government policies, high implementation costs, inadequate contractual coordination, lack of specified standards, cost of data and information sharing, technological availability issues, stakeholder reluctance, business and cultural changes, data and intellectual property issues, and interoperability issues. The factor analysis identified three main BIM implementation difficulties in Middle Eastern construction. These factors are training, cost, and economic constraints. Full article
(This article belongs to the Special Issue Research on BIM-Based Building Process Management)
Show Figures

Figure 1

13 pages, 1653 KiB  
Article
Vitamin C as a Potential Interplaying Factor between Obesity and COVID-19 Outcome
by Wael Hafez, Husam Saleh, Mahmoud Abdelshakor, Shougyat Ahmed, Sana Osman and Muneir Gador
Healthcare 2023, 11(1), 93; https://doi.org/10.3390/healthcare11010093 - 28 Dec 2022
Cited by 2 | Viewed by 2710
Abstract
(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 [...] Read more.
(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. Full article
Show Figures

Figure 1

18 pages, 4837 KiB  
Article
Body Mass Index and Clinical Outcomes in Adult COVID-19 Patients of Diverse Ethnicities
by Wael Hafez, Mahmoud Abdelshakor, Samy Kishk, Amr Gebril, Muneir Gador, Sana Osman, Hesham Mohamed Abuelsaoud and Ahmed Abdelrahman
Healthcare 2022, 10(12), 2575; https://doi.org/10.3390/healthcare10122575 - 19 Dec 2022
Cited by 3 | Viewed by 12662
Abstract
(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 [...] Read more.
(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. Full article
Show Figures

Figure 1

14 pages, 2220 KiB  
Article
ABO Blood Group in Relation to COVID-19 Susceptibility and Clinical Outcomes: A Retrospective Observational Study in the United Arab Emirates
by Wael Hafez, Shougyat Ahmed, Nihad Abbas, Kamran Ahmed, Samera Kamran, Arun Arya, Srinivasa Raghu Rao, Mahmoud Abdelshakor, Sara Ali, Honeymol Sebastian, Mishal Tariq, Kumar Lal and Ahmed Abdelrahman
Life 2022, 12(8), 1157; https://doi.org/10.3390/life12081157 - 29 Jul 2022
Cited by 7 | Viewed by 3885
Abstract
(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 [...] Read more.
(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. Full article
Show Figures

Figure 1

12 pages, 975 KiB  
Article
The Prevalence and Implications of Olfactory/Gustatory Dysfunctions among Adult COVID-19 Patients: A Retrospective Cohort Multiethnic Populations Study
by Wael Hafez, Mahmoud Abdelshakor, Muneir Gador, Ikram Abdelli and Shougyat Ahmed
Trop. Med. Infect. Dis. 2022, 7(7), 115; https://doi.org/10.3390/tropicalmed7070115 - 23 Jun 2022
Cited by 2 | Viewed by 3505
Abstract
(1) Background: Olfactory and gustatory dysfunctions (OGDs) was found in COVID-19 patients. Only a few studies looked into the prevalence of OGDs in the United Arab Emirates (UAE). The purpose of this study was to estimate the prevalence OGDs among multiethnic COVID-19 patients [...] Read more.
(1) Background: Olfactory and gustatory dysfunctions (OGDs) was found in COVID-19 patients. Only a few studies looked into the prevalence of OGDs in the United Arab Emirates (UAE). The purpose of this study was to estimate the prevalence OGDs among multiethnic COVID-19 patients in the UAE, and its association to patients’ characteristics and disease outcomes; (2) Methods: There were 1785 COVID-19 patients included in our cohort; (3) Results: Males made up most of the study participants (86.3%). A total of 11.7% of the participants reported OGDs. Female gender and ethnicity had significantly higher symptom prevalence (p < 0.001). COVID-19 severity had a strong inverse association with OGDs (p = 0.007). Other illness outcomes, such as ICU admission, pneumonia development, and mortality, showed no correlation. Males, Asians, and patients with comorbidities all had statistically significantly lower prevalence odds. On the other hand, Emirati, Arab, and Iranian patients had a higher prevalence. COVID-19 patients with OGDs had a considerably shorter time until viral clearance than those without the symptom; (4) Conclusions: in nonsevere COVID-19, olfactory/gustatory dysfunction is common. As a result, it could be applied as a predictive sign for early disease diagnosis and prognosis. Full article
Show Figures

Figure 1

19 pages, 3130 KiB  
Article
Treatment Outcomes of Tocilizumab in Critically-Ill COVID-19 Patients, Single-Centre Retrospective Study
by Wael Hafez, Mohamad Azzam Ziade, Arun Arya, Husam Saleh, Mahmoud Abdelshakor, Osman Fadl Alla, Pragati Agrawal, Sara Ali, Srinivasa Raghu Rao, Subrata Gupta, Ikram Abdelli, Honeymol Sebastian, Mohamed Ali, Muneir Gador, Ziad Al Baha and Ahmed Abdelrahman
Antibiotics 2022, 11(2), 241; https://doi.org/10.3390/antibiotics11020241 - 12 Feb 2022
Cited by 6 | Viewed by 3798
Abstract
(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 [...] Read more.
(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. Full article
Show Figures

Figure 1

Back to TopTop