Trends in atrial flutter and atrial tachycardia research

Background: Atrial flutter and atrial tachycardia are frequently observed arrhythmias that can be difficult to treat effectively with catheter ablation. It would be of interest to know the research directions for these arrhythmias in order to plan future efficacious studies. Method: The MEDLINE search tool was used to determine the number of articles per year published in the biomedical literature on atrial flutter and atrial tachycardia. It was also used to determine how many articles were published concerning both of these arrhythmias in association with related keywords. The search was done for the years 1960â2013 inclusive. An in-house developed software program was utilized to structure the data into number of publications in each year. The results were graphed, and linear regression analysis was used to show trends. Results: Overall, there were 6926 publications in the biomedical literature containing the keyword âatrial flutterâ. The number of atrial flutter publications increased by an average of 3.58 per year from 1960 to 2013. However, there was a dip in the number of such publications during the years 1970â1990. By comparison, there were 2526 publications in the biomedical literature containing the keyword âatrial tachycardiaâ. The number of atrial tachycardia publications increased by an average of 1.95 per year from 1960 to 2013. Most keywords associated with both atrial flutter and atrial tachycardia trended upward in number of publications per year. However many keywords peaked around the year 2004. Conclusions: There have been marked changes in the types and numbers of research foci for both atrial flutter and atrial tachycardia, based on studies published in the biomedical literature. Keywords: Atrial flutter, Atrial tachycardia, MEDLINE, Publishing, Research trends