Graham Mackenzie

Graham Mackenzie
NHS Lothian

MD

About

48
Publications
2,828
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352
Citations
Introduction
Additional affiliations
January 2008 - present
NHS Lothian
Position
  • Consultant

Publications

Publications (48)
Article
Introduction Social media has an increasingly important role in scientific communication, clinical discussions and knowledge distribution. While several surgical disciplines have taken to internet for increased connectivity, there is currently little knowledge about the social media activity in the field of hepatopancreatobiliary surgery. We aimed...
Conference Paper
Full-text available
Introduction/Background Scientific conferences promote specific hashtags for delegates to use. With the COVID-19 pandemic resulting in the cancellation of physical meetings there is considerable interest in understanding Twitter use at virtual events. Here we assess the reach of ‘#goASOCO20’, a new hashtag created to disseminate Gynaecological Onco...
Article
Full-text available
Background Twitter engagement between surgeons provides opportunities for international discussion of research and clinical practice. Understanding how surgical tweet chats work is important at a time when increasing reliance is being placed on virtual engagement because of the COVID-19 pandemic. Methods Individual tweets from the May 2019 #BJSCon...
Article
Background Social media is increasingly used in surgery, facilitating the dissemination of knowledge. Social media can potentially aid networking, education, and information exchange. This study explored the impact of tweet components and tweeter characteristics during a large surgical congress to inform recommendations for optimizing social media...
Article
International antibiotic awareness and stewardship campaigns use social media to disseminate campaign materials. Analysis of campaigns during 2016 and 2017 identified a wide range of hashtags in use, potentially leading to confusion and dilution of campaign message. The aim was to study the impact of different hashtags on the dissemination of infor...
Article
Full-text available
Background The COVID‐19 pandemic led to the American College of Cardiology (ACC) Annual Scientific Session 2020 (ACC.20) being held as a virtual event. Hypothesis Social media activity around a virtual event might be quite different to that of a physical meeting. The goal of this study was to assess impact of ACC.20 through Twitter and compare it...
Article
Objectives and setting The aim of this study was to create a hashtag #SoMe4Surgery on the social network application Twitter, and to examine the natural history of the resulting online community. Design and outcome measures A prospective, four-stage framework was proposed and used: (1) inception phase (connection): users were actively invited to p...
Article
Full-text available
Background Twitter is a microblogging service providing a platform for social networking. For medical information, Twitter is an interesting channel for sharing and spreading information and as an engagement platform for different stakeholders. Benefits and caveats of uncontrolled medical information must be carefully pondered, considering the poss...
Article
Introduction: Previous studies of conference tweeting have focused on tweets that used the conference hashtag. The aim of this study was to document responses beyond a specific conference hashtag. Methods: Observational study exploring replies to tweets for the 39th meeting of ESSO (ESSO39), Rotterdam, 9-11 October 2019. An extract of #ESSO39 tw...
Article
Full-text available
Importance Successful acquisition of language is foundational for health and well-being across the life course and is patterned by medical and social determinants that operate in early life. Objective To investigate the associations of neighborhood disadvantage, gestational age, and English as first language with speech, language, and communicatio...
Article
In this digital era there has been increasing use of social media in the field of urology. Although we can often feel the impact of social media in our daily encounters, we need more quantifiable measures to evaluate and monitor social media activities. By gathering and analyzing data from different social media platforms, we will be able to unders...
Article
Background: Little is known about the key composition of a successful tweet in urology. Objective: To investigate for predictors of engagement with urology content on Twitter. Design, setting, and participants: This was a cross-sectional study based on 2-wk Twitter data surrounding a major international urology conference. Intervention: We e...
Article
Full-text available
OBJECTIVES: During medical congresses Twitter allows discussions to disseminate beyond the congress hall and reach a wider audience. Insights into the dynamics of social media interactions during congresses, dissemination of scientific information and the determinants of a successful tweet may allow us to better understand social media's role in sc...
Preprint
Full-text available
Unpublished paper but see blog. https://scotpublichealth.com/2018/10/31/healthnews/ Aim: To use Twitter Big Data to identify the main influencers and disseminators of health news in the UK, in the general and specialist press, and to place in an international context. Methods: Health-related tweets from late January 2017 were extracted and mapped...
Article
Full-text available
Introduction Social media is increasingly used to share information with the potential for fast and wide reach. Data on use during surgical oncology conferences is limited. We aimed to monitor twitter usage during a surgical oncology conference to audit impact of activity. Methods A prospective, time-restricted, observational study of twitter acti...
Article
Full-text available
Attendance at international sports and physical activity conferences is extremely useful for networking but can be expensive in terms of professional time, conference fees, accommodation and travel. The use of social media, especially Twitter,1 has increased in many global meetings. It is now possible to map, virtually attend, influence and interac...
Presentation
Full-text available
Medical Social Network Analysis using Twitter and NodeXL. last two years work by GMA and CWO. Focus on medical conferences, health awareness campaigns, people and organisations. 1. Describe first encounter with Node XL map, July 2015 (Mark Outhwaite, Q Initiative event). Wanted to explore application to #ScotPublicHealth work during 2016. 2. Se...
Presentation
Full-text available
Antimicrobial resistance presents a major challenge, but simple steps can to minimise the impact. Social media has a role in disseminating information during antibiotic awareness campaigns: information can be shared rapidly, widely, and cheaply. Hashtags are used to identify social media posts on a specific topic. The official hashtag for social me...
Article
Full-text available
Background: Social media, including Twitter, potentially provides a route to communicate public health messages to a large audience. Simple measures can boost onward broadcast to other users ('retweeting'). This study compares the impact of a structured programme of social media activity in Scotland during 2016 (using #ScotPublicHealth hashtag) wi...
Article
Full-text available
Poverty has a detrimental impact on health and wellbeing. Healthy Start food and vitamin vouchers provide support for low income families across the UK, but at least 25% of eligible women and children miss out. We set out to increase uptake, with an aim of 90% of eligible women and children (n~540 eligible, varying over time) receiving vouchers in...
Article
The Low Commission’s report on welfare advice in healthcare settings was well timed, being published a week before the UK government’s July 2015 budget.1 2 This budget will clearly have a negative impact on many families with children,3 so welfare advice is important for this group too. Since …
Article
Introduction Case series suggest pregnant women are at increased risk of contracting H1N1 and experiencing complications. Published studies to date have investigated symptomatic patients or ascertained serology cross-sectionally. Such studies do not allow accurate quantification of incidence and neglect mild disease when estimating complication rat...
Article
Introduction Research on natural experiments (NEs) allows investigation into topics that are important for policy-makers, including many social determinants of health. NEs can be conceptualised as differing from other research in three important ways. First, unlike trials, investigators cannot allocate the exposure of interest which is instead exte...
Article
Full-text available
We set out to identify the level of previous exposure to influenza A (H1N1) in unvaccinated healthcare workers (HCWs) at the peak of the pandemic outbreak in the UK, with control samples collected prior to the outbreak. Cross-sectional study (seroprevalence assessed before and at pandemic peak, with questionnaire data collected at peak of outbreak)...
Article
Introduction Susceptibility of healthcare workers (HCW) to influenza is relevant in terms of sickness absence, productivity and onward transmission of infection from carer to patient, a particular issue with a novel influenza strain. The aim of this study was to determine the seroprevalence of antibodies against the virus in unvaccinated healthcare...
Article
IntroductionPregnant women are at increased risk of contracting H1N1 and developing complications. However, the incidence of asymptomatic or mild H1N1 infection during pregnancy is not known. We investigated H1N1 incidence and rate of complications in unvaccinated women who were pregnant during the 2009/2010 winter pandemic.Method417 unvaccinated p...
Article
Full-text available
Donner-Banzhoff and Sönnichsen highlight the lack of evidence for “treating to target” with statins.1 Treatment targets can lead to an escalation of treatment that is not evidence based, drain clinical resources through repeat clinic visits and blood tests, and can lead …
Article
Full-text available
Henderson et al studied sexual health and relationships education (SHARE) delivered between 1996 and 1999 in east Scotland.1 They showed no statistically significant influence on conceptions or terminations by age 20 years. In the article by Henderson et al, SHARE was delivered exclusively by school teachers,1 but an earlier study on the same coh...
Article
Full-text available
EDITOR—Low dose statins are now available for purchase over the counter by people at moderate risk of coronary heart disease (10 year risk of coronary heart disease 10-15%). Eligible people are identified using an assessment of age, sex, and number of risk factors for coronary heart disease as described in guidelines from the Royal Pharmaceutical S...
Article
Full-text available
The number of cases of mumps in the UK has increased during 2004-2005. Understanding why some people are more susceptible to mumps infection will help target vaccination and other control measures in the future. This paper describes a mumps outbreak in a boarding school in Scotland (October to November 2004). To describe the characteristics of case...
Article
Full-text available
EDITOR—Moon and Bogle should be supported in their call to move from branded to generic statins.1 However, by using the costing tool of the National Institute for Health and Clinical Excellence (NICE),2 they have probably overestimated the benefits of statins. The 10 year risk thresholds for cardiovascular disease for starting a statin in primary...
Article
Full-text available
EDITOR—Harnden et al's study raises important questions about the role of prehospital parenteral penicillin in children with meningococcal disease.1 Their paper and accompanying statistical comment have shown the potential importance of excluding patients who would never have been considered for treatment. However, their study design is likely to h...
Article
Full-text available
Editor—Bottle and Aylin's study provides evidence of an association between delay to hip fracture surgery and mortality,1 a topic that has proved controversial.2 However, as their analysis depended on routinely collected data, the study had important limitations. Scottish data provide additional relevant information. Scottish hip fracture audit da...
Article
Full-text available
Editor—Manuel et al found, contrary to Rose's population health strategy, that a high baseline risk strategy was the most effective approach to coronary heart disease prevention with a statin in Canada.1 This approach is consistent with new UK guidelines.2 Using data from the nationally representative Scottish health survey 1998 we estimate that 25...
Article
Recent guidelines recommend regular exercise in the management of patients with chronic heart failure (CHF). This study was designed to compare the safety and efficacy of conventional bicycle exercise and functional electrical stimulation (FES) of the legs as forms of home-based exercise training for patients with stable CHF. Forty-six patients (38...

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