Abstract
In this issue, Lin and Pai evaluate the impact of increasing surgeon age on in-hospital mortality associated with coronary artery bypass grafting (CABG) surgery. They conclude that age and experience afforded to a surgeon by seniority is directly linked to improved outcomes [1]. The concept of experience and improved outcomes is not new, nor is it novel to the operative environment. In many industries, experience has been shown to have an impact on outcomes of performance. Before we analyze the surgical model with age-related outcome bias, let us consider an example in recent aviation history where experience was deemed to lead to a better outcome. The landing of US Air flight 1549 in New York’s Hudson River earlier this year by Captain Sullenberger, who had 19,000 hours of flight experience in the cockpit, was directly related to the fact that he was able to perform an exacting landing in the face of engine failure, thereby saving countless lives. It is no mystery that wine aged to perfection indeed tastes better. It is also amply evident that more experienced surgeons perform complex operations with better outcomes, whereas younger surgeons may have less than desirable outcomes even after routine procedures owing to their lack of experience. One of the underlying reasons is perhaps the quality of training a surgeon receives during residency or fellowship. It has been noted that although trainees may have been exposed to a lot of procedures their skill is commensurate with that of procedures they have actually performed. It is also a duly noted fact that senior surgical faculty are better at training residents because they know that a technical error made by a resident can be rectified by the senior surgeon’s experience. Many skilled professors of surgery with thousands of operations behind them allow the resident to do more in the operating room because they know that they can fix any mistakes made by the resident and still have a good outcome. The junior surgeons are more resistant to such liberality in the teaching setting because they may not be skilled enough to rectify technical mistakes made by the residents. Yet, as mentioned before, most clinical setups have both senior and junior surgeons performing the operations. When a difficult operation is scheduled by a junior surgeon, she or he is afforded the courtesy of being assisted by a ‘‘senior partner,’’ thus ensuring a favorable outcome. This is not to ignore an important argument that must be taken into consideration while analyzing surgeons’ age-related outcomes—the fact that senior surgeons usually have the liberty to be selective about whom they operate on and may have the clout to choose the lowest-risk patients, thus allowing them access to a patient pool that is likely to have better outcomes. Consequently, the ‘‘junior surgeon’’ gets the less favorable cases; and between his or her lack of experience and the high-risk cases, it is a setup staged to result in less than desirable outcomes. It is further noted that senior surgeons, based on their experience, have developed operative logistical maneuvers over the years that allow them greater reproducibility of the technical skills that are required when performing simple or even complex operations. Their movements and operative steps are more consistent and more fluid than those of the junior surgeon, whose technique is still evolving. When considering a CABG procedure, one could view this complex operation as an array of serial successive steps that are added together systematically and that would include opening the chest, harvesting the bypass conduits, A. Chaudhry M. G. Massad (&) Division of Cardiothoracic Surgery, The University of Illinois at Chicago, 840 S. Wood Street, CSB 417 (MC 958), Chicago, IL 60612, USA e-mail: mmassad@uic.edu
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