Abstract
Introduction:
Kidney stone disease (KSD) affects millions of people worldwide and has an increasing incidence. Social media (SoMe) and search engines are both gaining in usage, while also being used by patients to research their conditions and aid in managing them. With this in mind, many authors have expressed the belief that SoMe and search engines can be used by patients and healthcare professionals to improve treatment compliance and help counseling and management of conditions such as KSD. We wanted to determine whether SoMe and search engines play a role in the management and/or prevention of KSD.
Materials and Methods:
The databases MEDLINE, Embase, CINAHL, Scopus, and Cochrane Library were used to search for relevant English language literature from inception to December 2017. Results were screened by title, abstract, and then full text, according to the inclusion and exclusion criteria. The data were then analyzed independently by the authors not involved in the original study.
Results:
After initial identification of 2137 records and screening of 42 articles, 10 studies met the inclusion and exclusion criteria. The articles included focused on a variety of SoMe forms, including two articles each on twitter, YouTube, smartphone apps, and Google search engine and one article on Google insights and Google analytics. Regarding patient centered advice, while two articles covered advice on dietary, fluid intake, and management options, two additional articles each covered advice on fluid advice and management options only, while no such advice was given by three of the SoMe published articles.
Conclusions:
SoMe and search engines provide valuable information to patients with KSD. However, while the information provided regarding dietary aspects and fluid management was good, it was not comprehensive enough to include advice on other aspects of KSD prevention.
Introduction
K
Social media (SoMe) are Web 2.0-based applications 4 enabling the creation and publication of user-generated content. 5 SoMe includes social networking sites, video sharing sites, blogs, web/smartphone-based applications, and wikis. 4 Facebook, the most widely-used SoMe application, has ∼2.07 billion users worldwide, 6 YouTube has over 1 billion users, 7,8 and Twitter 4 has 330 million users. 9 It can be seen that SoMe usage is increasing, 5 and it is not just with younger generations. The Office for National Statistics 10 found that in 2017, 88% of adults in United Kingdom used the Internet every week (a 51% increase from 2006). 10 As SoMe usage increases, so does the influence it has on the medical decisions of the patients using it.
Patients have begun using SoMe to find online support groups and learn more about their conditions. 11 “Health subcultures” on Twitter 11 and Facebook patient “groups” allow users to share their personal stories and provide encouragement and advice to others. 11 In addition, several studies have shown that mobile technology has improved patients' adherence to treatment and understanding of their medical conditions. 12
SoMe is already being used to aid in the management and prevention of diseases and to enhance public health education. 13,14 In the United States, the SoMe platform “WebView” has been trialled, enabling patients to contact their doctors with medical queries. 13 Furthermore, clinicians have begun using Facebook and Twitter to educate their patients and more closely monitor their progress with suggested management/treatment. 13 There is concern that using SoMe in this way could raise ethical issues; however, the majority of medical professionals surveyed agreed that it could lead to positive health outcomes. 13 –16 The PwC Health Research Institute (HRI) found that ∼90% of survey participants would trust medical information from SoMe networks. 15
An Internet search engine (search engine) is software used to collect and organize content from the world wide web. 17 The most popular search engine currently in use is Google. Created in 1996, Google now runs over 4.4 billion searches per day, worldwide, and 64% of all search engine searches are now powered by Google. 18 It has been found that 72% of people using the Internet do so to find health information. 19
In light of the increasing prevalence of KSD and of search engine and SoMe usage, this article aims to systematically review the current literature regarding search engines and SoMe and their role in the prevention and management of KSD, to determine what benefits have been found thus far and whether their usage and availability has changed over time with respect to KSD management and prevention.
Objectives
To determine the role of SoMe and search engine use in the management and/or prevention of KSD.
Materials and Methods
Criteria for considering studies for this review
This systematic review considered of articles that assessed how SoMe and/or search engines improved the compliance, understanding, and education of patients with KSD, as well as how it aided healthcare providers, to improve primary and secondary prevention and management of KSD.
Inclusion and exclusion criteria
Inclusion criteria: English language articles specific to KSD Studies relating to any form of SoMe or any type of Internet search engine
Exclusion criteria: Gray literature, editorials, letters, and other “comment” pieces Studies involving pediatric patients or laboratory or animal studies
Search strategy for identification of studies
We perform a systematic review of the world literature to identify all studies pertaining to the accuracy or usefulness of search engines, or SoMe, for kidney stone formers. This was carried out in a Cochrane style and in accordance with Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) checklist (Fig. 1). Included literature contained either primary or secondary research and those which were not specific to KSD were excluded.

PRISMA flowchart of the included studies. PRISMA = Preferred Reporting Items for Systematic Reviews and Meta-Analyses.
Information for this review was sourced, primarily, from various databases. Literature searches were run on six of the most “useful” databases (according to the Information Standard by NHS England). 20 These databases were chosen because they all contain a large volume of medically related literature and are some of the most commonly used databases in the United Kingdom 20 (and were therefore likely to contain the majority of literature available that satisfied the eligibility criteria). The six databases used were as follows: Ovid (Medline), where searches were run on both the “1996–2017 (without revisions)” and “1946–2017” versions; PubMed (the “freely available” version of Medline); Embase and Embase Classic+Embase, both of which contained articles from 1947 to 2017; Scopus; CINAHL; and Cochrane Library from inception to December 2017.
The following search terms were used, combined using the “AND” and “OR” search functions, in all five of the databases mentioned: “urolithiasis,” “kidney stone,” “kidney stone disease,” “KSD,” “calculi,” “nephrolithiasis,” “renal stone,” “ureteric stone,” “renal calculi,” “renal colic,” “kidney calculi,” “urinary stone,” “social media,” “google,” “youtube,” “yahoo,” “bing,” “apps,” “app,” “search engine,” “online,” “web,” “web-based,” “forum,” “wiki,” ‘twitter’, “internet,” “ehealth,” “mhealth,” “user-generated content,” and “blog.”
Data collection and analysis
As for the search process, data extraction was carried out by two authors (E.J. and B.S.), and all discrepancies were sorted by mutual agreement. Once the relevant articles were selected and duplicate excluded, the data extracted included: the year of publication, the aims and objectives of each study, the type of interactions being assessed (type of SoMe or search engine), the duration of each study, and the variables being assessed in the studies. By compiling the search results into a spreadsheet, analysis could be performed more efficiently.
References for the studies were compiled (where appropriate) by importing citations into EndNote Web. Those that could not be imported were manually entered using an EndNote template tool and by following Vancouver guidelines. 21
Results
Study selection
The initial literature search produced 2137 results (30 from CINAHL, 286 from Cochrane, 185 from Embase, 75 from Medline, and 1561 from PubMed). Once screened by title and abstract, 2095 results were removed (due to failure to meet the inclusion criteria), leaving 42 results of potential relevance. Of these, 23 were duplicates, leaving 19 articles for which the full texts were obtained. At this stage, one study was removed as it was a pilot study, 2 were removed as they were found to be unrelated, and 6 were removed as they were gray literature; this left 10 articles for the final review (Fig. 1).
Description of studies
The articles included focused on a variety of SoMe forms, including two articles each on twitter, YouTube, smartphone apps, and Google search engine and one article each on Google insights and Google analytics (Tables 1 and 2).
Two articles, both of 12 months duration, explored the popularity and content of different Twitter threads relating to KSD. 22,23 Salem and associates explored the #KidneyStones thread 22 (whose most active participants were patients), and Thangasamy and coworkers monitored an international urology journal club (created with healthcare professionals in mind). 23 Both studies noted a large global audience, and both found that discussions taking place were largely positive. 22,23 Thangasamy and colleagues expressed that Twitter could be a useful tool for the online collaboration of international colleagues and a way of maintaining international relations. 23
Both articles analyzed data using third party tools (using the “Symplur signals analytics” tool, but Salem and colleagues 22 also used “Tweetreach” and “Sprout social”). This reduced their risk of bias; however, it did add the limitation of third party tools potentially extracting incomplete data.
YouTube
Sood and colleagues 24 and Serinken and colleagues 25 both explored YouTube with relation to KSD. Both studies included all appropriate videos up until the time of data collection (March 201024 and December 2014, 25 respectively); therefore, there may be some overlap in videos examined. Both studies assessed the usefulness of the videos and the quality of information. Both studies were limited due to subjective evaluation criteria. They both noted potential opportunities for YouTube videos reaching laypeople; however, they also highlighted the flaw of misinformation (as video content is not screened for accuracy before being uploaded).
Google search engine
Two articles examined the quality of information available when using Google as a search engine 26,27 ; and two used Google Analytics 28 or Google Insights 29 to examine KSD search-term trends. Willard and Nguyen 28 and Breyer and colleagues 29 used Google Analytics and Google Insights, respectively. In this way, they proposed a novel way of utilizing search engines and SoMe to distinguish seasonal variation and trends to track KSD incidence 29 and examine what patients search for to determine their needs. 28 These approaches demonstrated the potential uses of search engines and SoMe for medical professionals to improve patient care.
Chang and colleagues 26 and Traver and colleagues 27 both explored Google as a search engine. Chang and colleagues assessed the quality of information available, 26 using HON principles (guidelines aiming to ensure that a website provides good-quality medical information), 30 thus reducing the risk of bias when evaluating the website results. Traver and coworkers looked for the presence of four dietary recommendations and evaluated accuracy. 27 Both studies found that the Internet is a large source of information for patients; however, this information is not controlled, therefore may not be accurate. Chang and associates 26 stated that healthcare professionals could utilize this resource and steer patients toward accurate information. Traver and coworkers 27 suggested the presence of a “gap in the market” for a resource that uses peer review and fact checking; however, this highlighted a potential conflict of interest in their research, as they are developing an interactive website for stone formers that fulfills this so-called “gap in the market.”
Smartphone apps
Two articles explored smartphone apps as the basis of intervention for KSD. 31,32 Stevens and associates assessed the medical accuracy of information provided and used a 4-point Likert scale to determine customer satisfaction. 31 Conroy and associates used behavior-change taxonomy to assess which behavior-change techniques were provided by the apps. 32 This study did not reach a determined conclusion regarding the effect on KSD management/prevention; however, authors found that fluid intake apps were most useful to patients. Stevens and associates found that SoMe are a useful resource, but that the accuracy of information is questionable due to poor regulation. 31 They found that less than half of the apps had medical professional input, and all of the apps deemed “accurate” were those with such input. 31
Due to the rapidly developing nature of SoMe and search engines, for all articles, as information was being gathered and analyzed it was already becoming outdated (due to more apps, videos etc. being released since the time of data collection). Therefore, this limitation was taken into consideration when reviewing these articles.
Discussion
Summary of main results
This systematic review aimed to ascertain the current use of SoMe and search engines in the prevention and management of KSD. It has been determined that there is an increase in SoMe 5 and search engine usage 10 and that more videos, apps, and search engine results are being created regarding management and prevention of KSD. 22 –29,31,32 This is reflected in the articles examined in this study in which all were published since 2009. Regarding patient-centered advice, while two articles covered advice on dietary, fluid intake, and management options, two additional articles each covered advice on fluid intake and management options only, while no such advice was given by three of the SoMe published articles (Table 3). However, SoMe were not good in highlighting other associated causes of KSD such as diabetes, hypertension, and obesity.
NA = not available; Y = yes.
Role of SoMe in KSD
More articles are being published regarding SoMe and search engines in relation to KSD. Most articles found that the available resources and information across various forms of SoMe and through search engines were plentiful; however, it was also widely acknowledged by the researchers that there were not enough restrictions or quality checks for accuracy of information provided. 27,32 Therefore, they felt that there is a chance that the public could be receiving inaccurate information although this was speculative and not backed by any evidence.
In relation to KSD-related apps, authors found that they mainly targeted patients and that most apps seem to have no medical professional input. Therefore, the information could have been misleading to a layperson. 31,32 The need for greater regulation of quality of information of smartphone applications is evident. In light of this, it may be beneficial to conduct further research into popular apps with a rating system to distinguish apps with poor quality advice from those which are accurate. Furthermore, it appears that apps are not being targeted for use by healthcare professionals; however, this may be an area worth exploring as is the case in other areas where apps such as Medici 33 are being used to enhance doctor-patient communications and relations, to improve healthcare outcomes.
Similar to smartphone apps, it was found that YouTube videos were plentiful, but that many provided poor information. However, videos with poor or misleading information are distinguishable through lower ratings and lower reviews. Researchers agreed that YouTube is increasing in coverage and that medical professionals should therefore consider this a resource for patient information. 24,25 YouTube was found to be a promising educational tool, and it has the potential to educate kidney stone formers about risk factors and management of their condition and, therefore, has the potential to decrease prevalence of KSD if utilized to its full potential.
Researchers found Twitter to be appealing to laypeople, due to the fast sharing of information. All authors agreed that it is a rapidly growing platform, with wide outreach and great potential for both laypeople and the international collaboration of healthcare professionals. 22,23 Researchers deemed Twitter a good resource for those who are computer literate, as it appeals to both silent and active participants, and may have the potential to improve education of stone formers due to the involvement of both laypeople and medical professionals in one place. 22
With regard to search engine use, the same limitations as found with SoMe were noted. The most accurate information was ascertained from urologic and nephrologic websites. In the study utilizing Google Insights, it was found that the results from this tool correlated with KSD hospital admissions. 29 It is therefore plausible that this tool could be used to predict the prevalence of KSD, and in future it could be used to provide a greater standard of patient care. Using this, hospitals can predict spikes in KSD prevalence, and they can prepare for these patients more adequately. Finally, Google Analytics was found to provide insight into patient search trends, which had good correlation with KSD trends. 28 This tool holds scope for possible research, for example, into patient's most worrying symptoms (gleaned from their search terms) or patient's biggest concerns with KSD management/treatment. This could help improve medical professionals' understanding of their patients' needs and concerns, which could improve doctor–patient relations and improve patient care. The results also reflect a lack of awareness in SoMe around other associated factors such as obesity, hypertension, and diabetes. 34,35
Benefits and limitations of the study
In our review, all authors agreed that SoMe and search engine usage have increased. Therefore there are many possible uses of these tools in improving the management/prevention of KSD. A major issue facing SoMe and search engines is the lack of information quality/accuracy controls. However, if more research is done into regulatory measures with strict quality control or with the input from medical health professional, it is likely that these forms of information sharing have great health-improvement potential.
Limitations of our study include the exclusion of gray literature and articles not written in the English language. As this is a systematic review of literature, we looked at the published literature on SoMe but did not specifically look at the individual websites that provided patient information. Furthermore, due to the nature of SoMe and search engines, new search results and smartphone apps are continually being created. There is therefore a constant need for more up-to-date research into this topic that provides continual insight into their usage and benefits.
Future directions
SoMe could be utilized by healthcare professionals and their patients to aid in patient education, improve adherence, enhance patients' motivation to comply with recommended regimes, and improve doctor–patient relationships. 13,16 Almost 77% of patients begin their search for health information by utilizing a search engine and might even use online health information in place of contacting their doctor. 19 It can therefore be seen that search engines may be a useful tool for health promotion and for providing patients with medical information. Considering that there is a growth of KSD in certain patient groups such as in pediatric patients, morbid obesity, or in pregnancy, currently little information is available on these groups of patients in SoMe. 36 –38 Perhaps with better policing of websites, more can be done so that up-to-date and relevant information can be shared for this vulnerable group. In an era of rising cost of medical insurance or cost of treatment borne by the patients, perhaps a simple nonbiased guide to the cost and efficacy of different treatments, avoiding medical jargon, might also be helpful to patients. 39
An important aspect of SoMe is the obligation for its responsible use, maintaining professional boundaries and patient confidentiality at all times.
40
Once posted these contents stay online forever, and hence, only balanced accurate information should be shared. An aspect of SoMe on the rise are “Blogs” which are usually written by urologists about a wide range of current health-related topics.
41
Similarly, websites such as American urological association (AUA), European association of urologists (EAU), and British Association of Urological Surgeons (BAUS) also provide patient information leaflets (Supplementary Table S1; Supplementary Data are available online at
Conclusions
SoMe and search engines provide valuable information to patients with KSD. However, while the information provided regarding dietary aspects and fluid management was good, it was not comprehensive enough to include advice on other aspects of KSD prevention.
Footnotes
Author Disclosure Statement
No competing financial interests exist.
Abbreviations Used
References
Supplementary Material
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