Evaluating the Mainstream Influence of Cardiothoracic Surgical Research: An Analysis of Google Trends Data from 2004...

Public awareness and interest significantly influence research priorities and healthcare advancements. This study investigates the relationship between public interest, represented by Google Trends Relative Search Volume (RSV), and cardiothoracic research outputs over 21 years (2004 - 2024).

A total of 26 conditions/surgeries representing eight topics of general cardiothoracic interest were identified from a review of various social media pages, society webpages, and hospital information bulletins. Data on the conditions were collected from Google Trends and PubMed®. RSV values were calculated annually, and publication counts were extracted for each condition. The study used R (v4.3.3) for all statistical analyses and predictive models.

Trauma-related conditions and extracorporeal membrane oxygenation (ECMO) demonstrated increasing RSV and publication trends, with strong positive correlations (e.g., ECMO: r = 0.88, P < 0.0001). Conditions such as congenital cardiac anomalies (e.g., tetralogy of Fallot: r = -0.74, P < 0.0001) showed a negative correlation, with declining RSV despite ongoing research. Multiple regression revealed a significant positive relationship between RSV and publication counts when conditions were controlled (slope = 16.68, R2 = 0.8081, P < 0.0001). Feature importance analysis showed that "Condition" had a slightly greater influence than RSV on publication trends.

The study demonstrates variability between public interest and research output across cardiothoracic conditions. While some conditions, such as trauma-related cases and ECMO, show alignment between public awareness and publication activity, others, including congenital anomalies, exhibit divergence.