Tessler et al.  are to be congratulated for the innovative manner in which they have attempted to assess the effect of aging on physician competence, something about which many of us have concerns as we, and our colleagues, age.1However, I am somewhat surprised that in neither the article itself nor the accompanying editorial2is there mention of the significant differences in anesthesia practice between the United States and Canada or of the possibility that these differences might affect the authors’ linkage of the aging of anesthesiologists with both the frequency of litigation and the severity of patient injury related to such lawsuits if applied to the U.S. practice model.

In Canada, except in teaching hospitals, anesthesia is given by personal administration, most often by anesthesiologists, but also, in rural hospitals, by specially trained family physicians. In the United States, the supervisory model is used most often. Applying the metaphor in Warner’s editorial, we could say that in Canada older anesthesiologists are “in the driver’s seat,” whereas in the United States, they usually are “backseat drivers”– involved in the crucial parts of the anesthetic but otherwise leaving patient care to the individual actually “behind the wheel.” This difference in practice could affect the applicability of the findings of Tessler et al.  to anesthesia practice in the United States, where the age and skills of the anesthesiologist are only part of the equation – where the experience and knowledge of the older anesthesiologist might well be of more consequence than his/her decreased attention span, possible visual/hearing impairment, longer reaction and processing times, or other factors that could be related to the increased “crash rates” of older physicians cited in the study.

As noted both by Tessler et al.  and by Warner, there is sufficient research on this topic to establish that physicians do not age like fine wines.3,4However, especially in the absence of information as to what actions (or lack thereof) by the anesthesiologists involved lead to the lawsuits, this study is just the first step. As both Tessler et al.  and Warner conclude, further research is essential – research based on the supervisory practice model that will help us determine just how and to what extent the observed correlation between anesthesiologist age and patient outcomes applies to practice in the United States.

, Charlotte, North Carolina. iegilmour@yahoo.com

Tessler MJ, Shrier I, Steele RJ. Association between anesthesiologist age and litigation. Anesthesiology. 2012;116:574–9
Warner MA. More than just taking the keys away Anesthesiology. 2012;116:501–3
Day SC, Norcini JJ, Webster GD, Viner ED, Chirico AM. The effect of changes in medical knowledge on examination performance at the time of recertification. Res Med Educ. 1988;27:139–44
Eva KW. The aging physician; Changes in cognitive processing and their impact on medical practice. Acad Med. 2002;77:S1–6