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Author

Zaid Alsafi

Other affiliations: Imperial College Healthcare
Bio: Zaid Alsafi is a academic researcher at University College London who has co-authored 14 publication(s) receiving 5398 citation(s). The author has an hindex of 9. Previous affiliations of Zaid Alsafi include Imperial College Healthcare. The author has done significant research in the topic(s): Specialty & Coronavirus.

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Topics: Specialty, Coronavirus, Pandemic ...read more
Papers
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Open accessJournal ArticleDOI: 10.1016/J.IJSU.2020.02.034
Catrin Sohrabi1, Zaid Alsafi2, Niamh O'Neill1, M.N.I. Khan2  +4 moreInstitutions (4)
Abstract: An unprecedented outbreak of pneumonia of unknown aetiology in Wuhan City, Hubei province in China emerged in December 2019. A novel coronavirus was identified as the causative agent and was subsequently termed COVID-19 by the World Health Organization (WHO). Considered a relative of severe acute respiratory syndrome (SARS) and Middle East respiratory syndrome (MERS), COVID-19 is caused by a betacoronavirus named SARS-CoV-2 that affects the lower respiratory tract and manifests as pneumonia in humans. Despite rigorous global containment and quarantine efforts, the incidence of COVID-19 continues to rise, with 90,870 laboratory-confirmed cases and over 3,000 deaths worldwide. In response to this global outbreak, we summarise the current state of knowledge surrounding COVID-19.

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2,691 Citations


Open accessJournal ArticleDOI: 10.1016/J.IJSU.2020.04.018
Maria Nicola1, Zaid Alsafi2, Catrin Sohrabi3, Ahmed Kerwan4  +4 moreInstitutions (5)
Abstract: The COVID-19 pandemic has resulted in over 4.3 million confirmed cases and over 290,000 deaths globally. It has also sparked fears of an impending economic crisis and recession. Social distancing, self-isolation and travel restrictions have lead to a reduced workforce across all economic sectors and caused many jobs to be lost. Schools have closed down, and the need for commodities and manufactured products has decreased. In contrast, the need for medical supplies has significantly increased. The food sector is also facing increased demand due to panic-buying and stockpiling of food products. In response to this global outbreak, we summarise the socio-economic effects of COVID-19 on individual aspects of the world economy.

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Topics: Economic sector (53%), Recession (52%), Economic impact analysis (51%)

2,236 Citations



Open accessJournal ArticleDOI: 10.1016/J.IJSU.2020.05.022
Ahmed Al-Jabir1, Ahmed Kerwan1, Maria Nicola2, Zaid Alsafi3  +7 moreInstitutions (6)
Abstract: The Coronavirus (COVID-19) pandemic has resulted in over 4.5 million confirmed cases and over 300,000 deaths. The impact of COVID-19 on surgical practice is widespread, ranging from workforce and staffing issues, procedural prioritisation, viral transmission risk intraoperatively, changes to perioperative practice and ways of working alongside the impact on surgical education and training. Whilst there has been a growing literature base describing the early clinical course of COVID-19 and on aspects of critical care related to treating these patients, there has been a dearth of evidence on how this pandemic will affect surgical practice. This paper seeks to review the current evidence and offers recommendations for changes to surgical practice to minimise the effect of the COVID-19 pandemic.

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Topics: Pandemic (50%)

126 Citations


Open accessJournal ArticleDOI: 10.1016/J.IJSU.2020.05.002
Ahmed Al-Jabir1, Ahmed Kerwan1, Maria Nicola2, Zaid Alsafi3  +7 moreInstitutions (6)
Abstract: The Coronavirus (COVID-19) Pandemic represents a once in a century challenge to human healthcare with over 4.5 million cases and over 300,000 deaths thus far. Surgical practice has been significantly impacted with all specialties writing guidelines for how to manage during this crisis. All specialties have had to triage the urgency of their daily surgical procedures and consider non-surgical management options where possible. The Pandemic has had ramifications for ways of working, surgical techniques, open vs minimally invasive, theatre workflow, patient and staff safety, training and education. With guidelines specific to each specialty being implemented and followed, surgeons should be able to continue to provide safe and effective care to their patients during the COVID-19 pandemic. In this comprehensive and up to date review we assess changes to working practices through the lens of each surgical specialty.

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Topics: Surgical Specialty (61%), Specialty (51%)

103 Citations


Cited by
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Open access
01 Jan 2015-

12,969 Citations


Open accessJournal ArticleDOI: 10.1016/J.IJSU.2020.04.018
Maria Nicola1, Zaid Alsafi2, Catrin Sohrabi3, Ahmed Kerwan4  +4 moreInstitutions (5)
Abstract: The COVID-19 pandemic has resulted in over 4.3 million confirmed cases and over 290,000 deaths globally. It has also sparked fears of an impending economic crisis and recession. Social distancing, self-isolation and travel restrictions have lead to a reduced workforce across all economic sectors and caused many jobs to be lost. Schools have closed down, and the need for commodities and manufactured products has decreased. In contrast, the need for medical supplies has significantly increased. The food sector is also facing increased demand due to panic-buying and stockpiling of food products. In response to this global outbreak, we summarise the socio-economic effects of COVID-19 on individual aspects of the world economy.

...read more

Topics: Economic sector (53%), Recession (52%), Economic impact analysis (51%)

2,236 Citations


Open accessJournal ArticleDOI: 10.1016/J.JAD.2020.08.001
Jiaqi Xiong1, Orly Lipsitz2, Flora Nasri2, Leanna M.W. Lui2  +7 moreInstitutions (3)
Abstract: Background As a major virus outbreak in the 21st century, the Coronavirus disease 2019 (COVID-19) pandemic has led to unprecedented hazards to mental health globally. While psychological support is being provided to patients and healthcare workers, the general public's mental health requires significant attention as well. This systematic review aims to synthesize extant literature that reports on the effects of COVID-19 on psychological outcomes of the general population and its associated risk factors. Methods A systematic search was conducted on PubMed, Embase, Medline, Web of Science, and Scopus from inception to 17 May 2020 following the PRISMA guidelines. A manual search on Google Scholar was performed to identify additional relevant studies. Articles were selected based on the predetermined eligibility criteria. Results: Relatively high rates of symptoms of anxiety (6.33% to 50.9%), depression (14.6% to 48.3%), post-traumatic stress disorder (7% to 53.8%), psychological distress (34.43% to 38%), and stress (8.1% to 81.9%) are reported in the general population during the COVID-19 pandemic in China, Spain, Italy, Iran, the US, Turkey, Nepal, and Denmark. Risk factors associated with distress measures include female gender, younger age group (≤40 years), presence of chronic/psychiatric illnesses, unemployment, student status, and frequent exposure to social media/news concerning COVID-19. Limitations A significant degree of heterogeneity was noted across studies. Conclusions The COVID-19 pandemic is associated with highly significant levels of psychological distress that, in many cases, would meet the threshold for clinical relevance. Mitigating the hazardous effects of COVID-19 on mental health is an international public health priority.

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Topics: Mental health (58%), Distress (54%), Population (54%) ...read more

1,091 Citations


Open accessJournal ArticleDOI: 10.1038/S41558-020-0797-X
Abstract: Government policies during the COVID-19 pandemic have drastically altered patterns of energy demand around the world. Many international borders were closed and populations were confined to their homes, which reduced transport and changed consumption patterns. Here we compile government policies and activity data to estimate the decrease in CO2 emissions during forced confinements. Daily global CO2 emissions decreased by –17% (–11 to –25% for ±1σ) by early April 2020 compared with the mean 2019 levels, just under half from changes in surface transport. At their peak, emissions in individual countries decreased by –26% on average. The impact on 2020 annual emissions depends on the duration of the confinement, with a low estimate of –4% (–2 to –7%) if prepandemic conditions return by mid-June, and a high estimate of –7% (–3 to –13%) if some restrictions remain worldwide until the end of 2020. Government actions and economic incentives postcrisis will likely influence the global CO2 emissions path for decades.

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836 Citations


Performance
Metrics

Author's H-index: 9

No. of papers from the Author in previous years
YearPapers
20211
20209
20173
20141

Top Attributes

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Author's top 5 most impactful journals

International Journal of Surgery

7 papers, 5.3K citations

Radiology Research and Practice

1 papers, 7 citations

Annals of Surgery

1 papers, 9 citations

Clinical Radiology

1 papers, 3 citations

Network Information
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