Gehad Mohamed Tawfik

ORCID: 0000-0003-3459-193X
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Research Areas
  • Meta-analysis and systematic reviews
  • Delphi Technique in Research
  • Ethics in Clinical Research
  • Cardiac, Anesthesia and Surgical Outcomes
  • Head and Neck Cancer Studies
  • Obstructive Sleep Apnea Research
  • Nasal Surgery and Airway Studies
  • Sinusitis and nasal conditions
  • COVID-19 Clinical Research Studies
  • Voice and Speech Disorders
  • Neonatal Health and Biochemistry
  • COVID-19 epidemiological studies
  • Appendicitis Diagnosis and Management
  • Malaria Research and Control
  • Metabolism and Genetic Disorders
  • Multiple Sclerosis Research Studies
  • Lung Cancer Treatments and Mutations
  • Colorectal Cancer Surgical Treatments
  • Disaster Response and Management
  • Folate and B Vitamins Research
  • Viral Infections and Outbreaks Research
  • Head and Neck Surgical Oncology
  • Surgical site infection prevention
  • COVID-19 and Mental Health
  • Long-Term Effects of COVID-19

Ain Shams University
2018-2022

Mansoura University
2018-2022

University of Göttingen
2022

University of Birmingham
2022

National Institute for Health Research
2022

Nagasaki University
2021

Google (United States)
2021

Mansoura University Hospital
2015

Suez Canal University
2011

Abstract Background Although protocol registration of systematic reviews/meta-analysis (SR/MA) is still not mandatory, it highly recommended that authors publish their SR/MA protocols prior to submitting manuscripts for publication as by the Cochrane guidelines conducting SR/MAs. our aim was assess awareness, obstacles, and opinions about process. Methods A cross-sectional survey study included who published SR/MAs during period from 2010 2016, they were contacted participation in study....

10.1186/s12874-020-01094-9 article EN cc-by BMC Medical Research Methodology 2020-08-25

Background Since the COVID-19 pandemic began, there have been concerns related to preparedness of healthcare workers (HCWs). This study aimed describe level awareness and hospital HCWs at time first wave. Methods multinational, multicenter, cross-sectional survey was conducted among from February May 2020. We used a hierarchical logistic regression multivariate analysis adjust influence variables based on preparedness. then association rule mining identify relationships between HCW...

10.1371/journal.pone.0258348 article EN cc-by PLoS ONE 2021-12-22

Nasal obstruction is one of the most frequent otolaryngologic complaints; and collapse internal nasal valve main causes air flow obstruction.We aimed to evaluate by using reformatted CT-scans pre- post- rhinoplasty at 3 months assess its correlation symptomatic improvement NOSE scale.A prospective observational study was conducted between March 2017-May 2018 in a tertiary care otorhinolaryngology center. We included patients suffering from secondary angle deformity. Patients with sinusitis,...

10.1016/j.bjorl.2019.08.009 article EN cc-by Brazilian Journal of Otorhinolaryngology 2019-10-03

Intraoperative bleeding during functional endoscopic sinus surgery (FESS) poses a challenge to both surgeon and anesthetist. The primary aim of this study was evaluate the effectiveness local, intravenous combined use tranexamic acid (TA) in improving surgical field quality FESS.We conducted randomized controlled double-blinded prospective trial on 120 patients scheduled for elective FESS. After induction general anesthesia, were randomly evenly assigned one four groups; IV TA, local...

10.1002/hed.26610 article EN Head & Neck 2021-01-31

Primary pulmonary lymphomas (PPLs) are rare lymphoproliferative malignancies arising from the lungs. The prognostic factors and optimal management of PPL have not been clearly defined due to its rarity. This study sought characterize significant develop a validated nomogram for individualized prediction survival outcomes in patients with PPL. A total 2325 diagnosed between 1983 2010 were identified using Surveillance, Epidemiology, End Results (SEER) database. Older age at diagnosis, males,...

10.1080/10428194.2019.1633636 article EN Leukemia & lymphoma/Leukemia and lymphoma 2019-07-19

The recent outbreak of respiratory illness caused by a novel coronavirus (named "COVID-2019") has gained attention globally and been recognized as serious public health threat US Centers for Disease Control Prevention (CDC). first case was detected in Wuhan City, Hubei Province, China since then, the disease spread rapidly. As February 28, 2020, World Health Organization (WHO) declared that COVID-2019 Public Emergency International Concern (PHEIC) with 62 countries now reporting 85,176...

10.2139/ssrn.3550294 article EN SSRN Electronic Journal 2020-01-01
Sèbastien Gaujoux Nebyou Seyoum Ville Sallinen Ari Leppäniemi Andrea Belli and 95 more Clare Skerritt Naomi Wright Savva Pronin Azmina Verjee Thomas Pinkney Neil Smart Oliver Warren Michele Sacco Arnav Agarwal Simon Paterson‐Brown David A. Evans Philip Choi Ashish Gupta Jonathan Myers Victor Kong M Wilson Ewen M. Harrison Mircea Beuran Zahra Jaffry Leonardo Solaini Thomas M Drake Dmitri Nepogodiev Adesoji Ademuyiwa Philip Alexander Sara W Al‐Saqqa Sule Burger Kathryn Chu Dhruva Ghosh Hosni Salem Marie Carmela Lapitan Ismaïl Lawani María Lorena Aguilera Mayaba Maimbo Alex Makupe Rachel Moore Vanessa Msosa Alphonse Zeta Mutabazi Riinu Ots Ahmad Uzair Qureshi Sarah Rayne Marie Dione Parreno‐Sacdalan Richard T. Spence Stephen Tabiri Richard Lilford Dion Morton Aneel Bhangu Tom Abbott Gehad Mohamed Tawfik Sebastian K. King Alexia Farrugia Jay Park Abhishek Sharma Augusto Zani Christopher Smith Jonathan N. Lund Stefano Giuliani John Whitaker Elaine Borg Alexis Arnaud Esther Ferrero Andrea Ruzzenente Jennifer Rickard Yousef Abuowda Enas Alaloul Natalie Blencowe Sanjay Patel Mark Hampton Ewen A. Griffiths André L. Mihaljević Elizabeth Evans Caitlin Shaw Jennifer Ploski Mengistu Worku Ashish Minocha Shiva Dindyal Midhun Mohan Dina Fouad Christopher G. Owen Priya Patel Sunil Kumar James Chih‐Hsin Yang Kevin C. Conlon Sandro Pasquali Mohamed Mostafa Yoshan Moodley Kathryn Lee James Glasbey Gareth Irwin Kjetil Søreide Catrin Morgan Ruth Blanco‐Colino Francesco Pata Gianluca Pellino Sivesh K. Kamarajah Luke Nicholson

Introduction Surgical site infection (SSI) is one of the most common healthcare-associated infections (HAIs). However, there a lack data available about SSI in children worldwide, especially from low-income and middle-income countries. This study aimed to estimate incidence associations between morbidity across human development settings. Methods A multicentre, international, prospective, validated cohort aged under 16 years undergoing clean-contaminated, contaminated or dirty...

10.1136/bmjgh-2020-003429 article EN cc-by BMJ Global Health 2020-12-01

Systemic lupus erythematosus (SLE) afflicts young people disproportionately, often at a crucial time in their lives when they are trying to establish relationships, start families and launch careers. As result, persons with SLE may experience wide range of physical psychosocial problems that not always fully captured by descriptions the disease's physiological consequences alone.In order characterize spectrum effects regards disease activity its impact on quality life (QoL), case control...

10.4314/pamj.v6i1.69084 article EN cc-by Pan African Medical Journal 2011-08-29

Meta-analyses are on top of the evidence-based medicine pyramid, yet many them not completed after they begun. Many factors impacting publication meta-analysis works have been discussed, and their association with likelihood has investigated. These include type systematic review, journal metrics, h-index corresponding author, country funding sources, duration publication. In our current we aim to investigate these various impact A comprehensive review 397 registered protocols retrieved from...

10.1186/s13643-023-02210-8 article EN cc-by Systematic Reviews 2023-06-02

e23095 Background: Infectious diseases are the second leading cause of death in field oncology. Around 60% deaths infection related to cancer patients, especially with underlying hematological malignancies. This study assesses changing trends mortality patients from infectious causes past 40 years. Methods: is a retrospective analysis on 151440 who died between 1973 and 2014, identified Surveillance, Epidemiology, End Results (SEER) Program database. Results: Pneumonia influenza were most...

10.1200/jco.2019.37.15_suppl.e23095 article EN Journal of Clinical Oncology 2019-05-20

Abstract Background Despite noticeable improvement in anti-malarial treatment, rapid growth of resistant malaria strains points out the need for continuous development novel anti-malarials to fight disastrous infection. Haemozoin is considered as a inhibitory pathway new drugs, therefore, this study aimed systematically review all articles investigating correlation between and anti-haemozoin activities compounds. Methods A literature search was conducted on 22 October 2017 eight databases...

10.1186/s12936-020-03370-x article EN cc-by Malaria Journal 2020-08-21

Background: The outbreak of Coronavirus disease (COVID-19) caused by a novel coronavirus (named SARS-CoV-2) has gained attention globally and been recognized as Public Health Emergency International Concern (PHEIC) the World Organization (WHO) due to rapidly increasing number deaths confirmed cases. care workers (HCWs) are vulnerable this crisis they first frontline receive manage COVID-19 patients. In multicenter multinational survey, we aim assess level awareness preparedness hospital...

10.3389/fpubh.2021.580427 article EN cc-by Frontiers in Public Health 2021-07-01

Introduction. The possible risk factors for chronic kidney disease in transplant recipients have not been thoroughly investigated after living-donor liver transplantation. Material and Methods. A retrospective cohort study of consecutive adults who underwent transplantation between May 2004 October 2016, a single center, was conducted. Kidney function successively all the patients throughout period, with 12 months being shortest follow-up. Postoperative renal dysfunction defined accordance...

10.1155/2018/5910372 article EN cc-by Journal of Transplantation 2018-12-23
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