Mohamed Younis

Dr. Mohamed Younis

Cambridge University Hospitals
orcid

Research Focus & Metrics

Academic Career Length

8Years (2019-Present)

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

Representative Publications

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24 September 2020 in Anesthesia & Analgesia
Verified
Journal Article
Closed access
ASAmr Sallam
Amr Sallam
AAAhmed Abdelaal Ahmed Mahmoud M. Alkhatip
Ahmed Abdelaal Ahmed Mahmoud M. Alkhatip
MKMohamed Gomaa Kamel
Mohamed Gomaa Kamel
MHMohamed Khaled Hamza
Mohamed Khaled Hamza
Hany Mahmoud YassinHany Mahmoud Yassin
Hany Mahmoud Yassin
Hassan MohamedHassan Mohamed
Hassan Mohamed
BACKGROUND: Although invasive monitoring is the standard method for intracranial pressure (ICP) measurement, it is not without potential for serious complications. Noninvasive methods have been proposed as alternatives to invasive ICP monitoring. The study aimed to investigate the diagnostic accuracy of the currently available noninvasive methods for intracranial hypertension (ICH) monitoring. METHODS: We searched 5 databases for articles evaluating the diagnostic accuracy of noninvasive methods in diagnosing ICH in PubMed, Institute of Science Index, Scopus, Cochrane Central Register of Controlled Trials (CENTRAL), and Embase. The quantitative analysis was conducted if there were at least 2 studies evaluating a specific method. The accuracy measures included the sensitivity, specificity, likelihood ratios, and diagnostic odds ratio. RESULTS: We included 134 articles. Ultrasonographic optic nerve sheath diameter (US ONSD) had high diagnostic accuracy (estimated sensitivity of 90%; 95% confidence interval [CI], 87–92, estimated specificity of 88%; 95% CI, 84–91) while the magnetic resonance imaging (MRI) ONSD had estimated sensitivity of 77%; 95% CI, 64–87 and estimated specificity of 89%; 95% CI, 84–93, and computed tomography (CT) ONSD had estimated sensitivity of 93%; 95% CI, 90–96 and estimated specificity of 79%; 95% CI, 56–92. All MRI signs had a very high estimated specificity ranging from 90% to 99% but a low estimated sensitivity except for sinus stenosis which had high estimated sensitivity as well as specificity (90%; 95% CI, 75–96 and 96%; 95% CI, 91–99, respectively). Among the physical examination signs, pupillary dilation had a high estimated specificity (86%; 95% CI, 76–93). Other diagnostic tests to be considered included pulsatility index, papilledema, transcranial Doppler, compression or absence of basal cisterns, and ≥10 mm midline shift. Setting the cutoff value of ICH to ≥20 mm Hg instead of values 1 hour subgroup. CONCLUSIONS: Our study showed several promising tools for diagnosing ICH. Moreover, we demonstrated that using multiple, readily available, noninvasive methods is better than depending on a single sign such as physical examination or CT alone.

1 February 2020 in Critical Care Medicine
Verified
Journal Article
Closed access
AAAhmed Abdelaal Ahmed Mahmoud M. Alkhatip
Ahmed Abdelaal Ahmed Mahmoud M. Alkhatip
MYMohamed Younis
Mohamed Younis
NJNegar Jamshidi
Negar Jamshidi
HHHazem A Hussein
Hazem A Hussein
Ehab FaragEhab Farag
Ehab Farag
DZDina Zakaria
Dina Zakaria
Objectives: Tracheostomy is a very common clinical intervention in critically ill adult patients. The indications for tracheostomy procedures in pediatric patients with complex conditions have increased dramatically in recent years, but there are currently no guidelines on the optimal timing of tracheostomy in pediatric patients undergoing prolonged ventilation. Data Sources: We performed a systematic search of the existing literature in MEDLINE via PubMed and Embase databases and the Cochrane Library to identify clinical trials, observational studies, and cohort studies that compare early and late tracheostomy in children. The date of the last search was August 27, 2018. Included articles were subjected to manual searching. Study Selection: Studies in mechanically ventilated children that compared early with late tracheostomy were included. Data Extraction: Data were extracted into a spreadsheet and copied into Review Manager 5.3 (The Cochrane Collaboration, Copenhagen, Denmark). Data Synthesis: Data were meta-analyzed using an inverse variance, random effects model. Continuous outcomes were calculated as mean differences with 95% CIs, and dichotomous outcomes were calculated as Mantel-Haenszel risk ratios with 95% CIs. We included eight studies (10 study arms). These studies were all retrospective cohort studies. Early tracheostomy was associated with significant reductions in mortality, days on mechanical ventilation, and length of intensive care and total hospital stay, although the lack of randomized, controlled trials limits the validity of these findings. Although variance was imputed for some studies, these conclusions did not change after removing these studies from the analysis. Conclusions: In children on mechanical ventilation, early tracheostomy may improve important medical outcomes. However, our data demonstrate the urgent need for high-quality, randomized controlled trials in the pediatric population.

1 October 2021 in Journal of Cardiothoracic and Vascular Anesthesia
Verified
Journal Article
Closed access
PDF file
AAAhmed Abdelaal Ahmed Mahmoud M. Alkhatip
Ahmed Abdelaal Ahmed Mahmoud M. Alkhatip
MKMohamed Gomaa Kamel
Mohamed Gomaa Kamel
EFEhab Mohamed Farag
Ehab Mohamed Farag
MEMohamed Elayashy
Mohamed Elayashy
AFAhmed Farag
Ahmed Farag
MHMohamed khaled Hamza
Mohamed khaled Hamza

Verified
Journal Article
Open access
PDF file
AAAhmed Abdelaal Ahmed Mahmoud M. Alkhatip
Ahmed Abdelaal Ahmed Mahmoud M. Alkhatip
Michail GeorgakisMichail Georgakis
Michail Georgakis
Lucio Ricardo Montero ValenzuelaLucio Ricardo Montero Valenzuela
Lucio Ricardo Montero Valenzuela
MHMohamed khaled Hamza
Mohamed khaled Hamza
Ehab FaragEhab Farag
Ehab Farag
MEMohamed A. Elramely
Mohamed A. Elramely
SARS-CoV-2 currently lacks effective first-line drug treatment. We present promising data from in silico docking studies of new Methisazone compounds (modified with calcium, Ca; iron, Fe; magnesium, Mg; manganese, Mn; or zinc, Zn) designed to bind more strongly to key proteins involved in replication of SARS-CoV-2. In this in silico molecular docking study, we investigated the inhibiting role of Methisazone and the modified drugs against SARS-CoV-2 proteins: ribonucleic acid (RNA)-dependent RNA polymerase (RdRp), spike protein, papain-like protease (PlPr), and main protease (MPro). We found that the highest binding interactions were found with the spike protein (6VYB), with the highest overall binding being observed with Mn-bound Methisazone at −8.3 kcal/mol, followed by Zn and Ca at −8.0 kcal/mol, and Fe and Mg at −7.9 kcal/mol. We also found that the metal-modified Methisazone had higher affinity for PlPr and MPro. In addition, we identified multiple binding pockets that could be singly or multiply occupied on all proteins tested. The best binding energy was with Mn–Methisazone versus spike protein, and the largest cumulative increases in binding energies were found with PlPr. We suggest that further studies are warranted to identify whether these compounds may be effective for treatment and/or prophylaxis.

28 August 2019 in Irish Journal of Medical Science (1971 -)
Verified
Journal Article
Closed access
PDF file
AAAhmed Abdelaal Ahmed Mahmoud M. Alkhatip
Ahmed Abdelaal Ahmed Mahmoud M. Alkhatip
MYMohamed Younis
Mohamed Younis
CHChristopher Holmes
Christopher Holmes
ASAmr Sallam
Amr Sallam
MKMohamed Gomaa Kamel
Mohamed Gomaa Kamel
OMOrla Mulhern
Orla Mulhern

29 May 2020 in Turkish Journal of Anaesthesiology and Reanimation
Verified
Journal Article
Closed access
AAAhmed Abdelaal Ahmed Mahmoud M. Alkhatip
Ahmed Abdelaal Ahmed Mahmoud M. Alkhatip
MYMohamed Younis
Mohamed Younis
CHChris Holmes
Chris Holmes
ASAmr Sallam
Amr Sallam
Objective: To the best of our knowledge, no bibliometric studies have characterised the paediatric anaesthesia research in Ireland. In this study, we aim to analyse the research output from two anaesthetic departments in Irish paediatric hospitals. Methods: A Scopus database search was conducted to identify the publications from 2007 to 2018 of the departments of anaesthesia and intensive care medicine in the Children's University Hospital, Temple Street (CUH), and Our Lady's Children's Hospital, Crumlin (OLCHC). Results: The Irish publications in paediatric anaesthesia and intensive care included 108 publications. CUH and OLCHC published 37 (34.9%) and 73 (68.8%) documents, respectively, with 6 (5.6%) documents affiliated with both hospitals. The number of original research articles was 28 (75.7%) for CUH versus 46 (63%) for OLCHC. The number of published reviews was 5 (13.5%) for CUH versus 11 (15.1%) for OLCHC. Over the last 2 years (2016, 2017), the number of OLCHC publications was almost double (13 and 14 publications) that of CUH (4 and 6 publications). For CUH, only two publications were in specialised journals. For OLCHC, 18 publications were in specialised journals, in addition to four publications in high-ranked journals. The mean impact factor for CUH publications was 3.78 (standard deviation [SD], 7.19) versus 4.52 (SD, 10.56) for OLCHC. From OLCHC, 20 authors published with a median h-index of 2.00 (interquartile range, 0-4.25), versus 14 authors form CUH with a median h-index of 1.50 (1.00-4.50). Conclusion: Anaesthetic publications from the two Irish paediatric hospitals are unexceptional and with limited cooperation between the two hospitals. Research plans should be implemented.