INTRODUCTION
The Internet allows patients to access medical information easily [
1]. According to a recent survey, 8 of 10 people access health information in this way [
2,
3]. In the pandemic era of COVID-19, internet usage has increased more than ever before. YouTube (
http://www.youtube.com) is a popular source of entertainment and education. More than 300 hours of video are updated every minute; over a billion people watch videos for more than 1 h/day [
4]. The ubiquity of YouTube renders it potentially valuable to educate patients, students, and medical professionals [
5]. However, users registered on You- Tube can upload the content they want without any restrictions, and all users can watch the video regardless of whether they are registered or not. Recognizing these problems, many authors have analyzed the utility of YouTube in terms of education on prostate cancer, burns, hysterectomy, and the surgical methods used [
4,
6,
7].
Septoplasty and turbinoplasty are surgeries that are frequently performed in the otolaryngology area to relieve symptoms such as nasal congestion due to structural problems or rhinitis. In the early 20th century, Killian and Freer first proposed the septoplasty technique [
8]. Classically, septoplasty was done using a headlight and nasal speculum under direct visualization. However, endoscopic septoplasty was introduced in 1991 [
9]. The surgeries via endoscopic approach allow the audience to watch the process on a monitor; this is valuable when teaching. Turbinoplasty is also widely performed endoscopically. When preparing for surgery, surgeons often refer to videos on YouTube. However, no study has yet analyzed the quality of the information available; if this is poor, serious complications may occur. Here, we evaluated the quality of YouTube videos about septoplasty and turbinoplasty from an expert’s point of view, and investigated how it affects users who watched the video by analyzing the content of viewer comments.
RESULTS
The top 83 videos on septoplasty and/or turbinoplasty had a mean duration of 6 min 42 s (0:06:42 standard deviation [SD] 0:07:53; range 0:00:36 to 0:58:46). The mean number of likes was 1,057.7 (SD 5,671.4) and the mean number of dislikes 18.4 (SD 39.8). The videos were viewed 5,255,095 times (mean 63,314.4, SD 191,386.5; range 30 to 1,285,694). The most watched video recorded 1,285,694 views and was produced by a patient who removed the splint after septoplasty. The video receiving the most likes (48,000) was an animation of the surgical procedure. This video also had the maximum dislikes (283). Video demographics by utility are listed in
Table 2. About half of all videos were 38 (45.8%) poor, 27 (32.5%) moderate, and 18 (21.7%) excellent. There was no significant difference between these groups in terms of either length, the numbers of likes/dislikes, or the number of views. Excellent videos were usually uploaded by academics (12, 66.6%). Of the 38 poor videos, 15 (39.5%) were uploaded by patients and 13 (34.2%) by physicians. The video demographics by content are listed in
Table 3. Most videos concerned the surgical technique (31, 37.3%). In total, 27 videos (32.6%) provided information about the disease or surgery, 20 (24.1%) personal experiences, and 5 (6.0%) were advertisements. The mean length of the videos on personal experiences (0:10:45±0:06:32, h:min:s) was significantly longer than that of videos on surgical technique (0:05:04±0:03:06, h:min:s; p=0.001), those providing information about the disease or surgery (0:06:30±0:11:33, p=0.004), and advertisements (0:01:58±0:01:36, p=0.004). The mean view number of advertisement videos (2,543.4± 3,644.1) was significantly lower than those of videos on surgical techniques (46,560.2±107,488.6, p=0.006) and personal experiences (97,891.3±282,594.6, p=0.012). Of the 31 videos on surgical technique, 12 (38.7%) were moderate and 10 (32.3%) poor. Of 27 videos providing information, 11 (40.7%) were moderate and 8 (29.7%) poor. The videos on patient experiences were poor in 75% of cases; all advertising videos were poor. No video was biased against septoplasty and/or turbinoplasty except for some videos on patient experiences. The interobserver variabilities (weighted kappa scores) were 0.90 between Jeong CY and Kim SW (thus, excellent).
DISCUSSION
Patients who want to participate in medical decision-making are increasingly learning more about diseases and possible treatments using the Web. YouTube is a popular public access video sharing website that hosts an increasing number of clips on disease diagnosis, treatment and prevention. In 2007, Keelan et al. [
12] analyzed immunization videos on YouTube. Since that time, videos on pediatrics, orthopedics, and internal medicine have been evaluated. We explored the content quality of videos on septoplasty and/or turbinoplasty. These are not emergency surgeries (unlike nose bone fracture); patients have the time to seek medical information. However, YouTube has no strict rules; anyone can upload videos that anyone can view. Almost half of the videos were poor; this rate is high compared to those of previous studies evaluating the video contents in other disciplines [
7,
13]. Of the poor videos, most were uploaded by patients. Most videos on patient experience were poor; the most-viewed video showed a patient removing packing in the outpatient clinic. However, recent studies found that packing may not be performed unless the risk of bleeding is high [
14]. Videos uploaded by patients tended to be poor, imparting misinformation. However, unlike in other reports, patients who underwent surgery were not negative (i.e., anti-surgery) [
4]. Many reported good surgical effects; all problems were attributable to short-term follow-up (less than 3 months). After septoplasty or turbinoplasty, recurrence is possible; follow-up must be long-term [
15].
Given the rise in endoscopic surgery, many excellent videos were uploaded by academics. However, of the 31 videos related to the surgical technique, 12 (38.7%) were moderate and 10 (32.3%) poor. Many videos described endoscopic surgery, probably because it was easy to film. Most videos describing surgical techniques did not provide subtle details. It is essential that training videos follow standard guidelines. This should show the procedures performed by experienced professionals and include the entire process, thus commencing when the patient is prepared for surgery. In addition, as septoplasty is still often performed via gross surgery, relevant videos are required. Of the turbinoplasty videos, several seemed to cause empty nose syndrome (because of excessive removal) and many had no audio. Unlike videos uploaded by academics, those uploaded by physicians accounted for 13 (34.2%) of all 38 poor videos, thus ranking just before patients. No video was biased against the surgical techniques, provide information or advertisement. Interestingly, the complications of septoplasty and turbinoplasty were rarely mentioned. Videos uploaded by doctors were not objective and not very useful.
Other works found that the longer the video, the higher the information quality [
13]. However, most people want to watch short videos only, which is why they are misled. We found no significant effect of video length, or like or dislike ratings, between excellent, moderate, and poor videos. Those describing patient experiences were significantly longer than others, but were mostly moderate or poor.
Much Web information is of poor quality; doctors must tell patients to be selective. As mentioned above, several reports on medical YouTube videos have appeared. According to recent systematic review, YouTube contains a vast amount of medical data, some of which are inaccurate or misleading [
16]. However, there is no standard analysis method yet. Sampson et al. [
17] tried to create guidelines for the analysis of You-Tube videos, but with limited success. Considering the characteristics of YouTube, it is not easy to set standards for evaluating YouTube videos. Rather, since YouTube has lots of influence on people, it is necessary to prepare a plan to provide accurate information to patients and experts using You-Tube. A professional group such as a Society of Otorhinolaryngology-Head and Neck Surgery should produce and actively promote content in order to deliver accurate information to patients. In order for people to trust the information provided by the medical society, it is necessary to continuously check the comments and reactions on the content and take action immediately. In addition, doctors should inform patients using QR code or link so that they can access objective information created by the medical society.
As found by Lee et al. [
18] (exploring whether YouTube might be a useful source of information on laparoscopic cholecystectomy), videos uploaded by tertiary centers scored significantly higher (in terms of the mean) than did those from secondary centers, but were viewed significantly less often. Many surgical videos were excellent, but some described a technique not used today and not contained the overall process; this is inappropriate. Tertiary centers should continuously upload and manage videos, explaining the latest surgical techniques and the entire process in detail. Each video produced by a professional group needs to state the authors’ affiliations and describe the content.
Our work has several limitations. First, we analyzed only 83 YouTube videos retrieved using “septoplasty,” “turbinoplasty,” and “septoplasty turbinoplasty.” However, many people do not use more than 1 or 2 pages of search results. Second, we scored the videos subjectively; no validated assessment tool is yet available. Although the kappa scores indicated excellent interobserver agreement, this may be affected by the training history or other factors. Also, the video was evaluated only from an expert’s point of view, and the patient’s point of view may be different even for the same video. It seems that further investigation into this is necessary. Third, the results depend on the search terms used. We employed “septoplasty” and “turbinoplasty.” We assumed that these would be popular, but “deviated nasal septum” and/or “turbinate hypertrophy” may have been (appropriately) used; the retrieved videos would differ. Lastly, we conducted a cross sectional study to evaluate the quality of information. The result may change according to conditions such as videos added or deleted later, or total views of existing videos.
Our study contributes to a better understanding of the You-Tube information available on septoplasty and turbinoplasty. YouTube is not the right source of this information at the moment. However, as the number of users of YouTube is increasing, reliable YouTube videos with accurate information should be uploaded by a professional group such as a Society of Otorhinolaryngology-Head and Neck Surgery. After producing the necessary video for patients and professional groups, it should be continuously promoted and used actively.