Researchers used data from a hospital database and the percentage of the population with the surname Brady was determined through use of online telephone listings in Dublin, Ireland, between 2007 and 2013.
There were 579 Bradys listed in total and 1012 pacemakers were fitted during this time. The median age of patients was 77. Eight (0.8%) devices were implanted in patients named Brady. The proportion of pacemaker recipients among Bradys (1.38%) was significantly higher than among non-Bradys (0.61%).
The researchers say this is the first study to demonstrate a link between people's names and their health and say that the link between the name "Brady" and bradycardia could be due to heritage and "familial genetic disposition".
They add that the increased "Brady bradyphenomenon" could be attributable to increased levels of bradykinin, which in some animal studies has shown to decrease heart rate.
The researchers conclude that the influence of a person's name can determine aspects of their health and urge further research which could look at whether there are increased rate of obesity in Fatt family or depression in the Lowe family, for example. They say these findings may have a significant role in public health medicine and "name-specific screening programmes could be developed for at-risk families".