Evolving technology: recognition and opportunity

Acquiring proficiency in off-pump surgery: traversing the learning curve, reproducibility, and quality control

As the risk profile of patients considered for surgical revascularization worsens, the cumulative benefit of off-pump coronary artery bypass (OPCAB) over conventional coronary artery bypass grafting, in terms of lower morbidity and reduced healthcare costs, may increase. There is still resistance to the introduction of OPCAB surgery however, its practice is variable and surgical residents are rarely trained in these techniques. This article considers how the learning curve in OPCAB may be negotiated and prospectively monitored to ensure quality control. The evidence suggests that situations in which suitable senior expertise exists, OPCAB surgery can be introduced into surgical practice and safely taught to trainees without detriment to patients. This is achieved by a progressive increase in the complexity of the case mix and careful early supervision. The introduction of OPCAB has coincided with the increasing use of control charts as quality control tools. Performance monitoring provides reassurance that patients are not being put at risk during the introduction of OPCAB; control chart methods can be used prospectively for real time performance monitoring by consultant surgeons and residents alike. These techniques may ultimately be used to determine proficiency and accreditation. Increasing use of parallel training techniques, the development of structured training programs that encompass OPCAB and other new technologies in cardiac surgery, coupled with objective performance monitoring are warranted to meet the needs of a changing patient population.

The Society of Thoracic Surgeons/American Association for Thoracic Surgery Off-Pump Training Program

BACKGROUND

Opportunities to acquire knowledge and skills in new technology are limited for cardiothoracic surgeons after completion of residency. In 2000 The Society of Thoracic Surgeons/American Association for Thoracic Surgery Joint Committee for New Technology Assessment accepted an educational grant from the Foundation for Advanced Medical Education to implement and test an instructional program for practicing cardiothoracic surgeons in off-pump coronary bypass surgery.

METHODS

Twenty-four surgeons were selected for participation. Instruction was provided in three phases: (1) a preliminary video illustrating the techniques; (2) 2-day training sessions at two separate locations linked by videoconference; and (3) visits by trainees to observe preceptor surgeons at their institutions, followed by visits of preceptor surgeons to the institutions of the trainees. Evaluation of the program was made by review of trainee case lists in the year after completion of the program and by written surveys completed by trainees and preceptors.

RESULTS

Seventeen surgeons completed all phases of the program. Most of them reported frequently utilizing off-pump bypass surgery in practice with good results. Two surgeons dropped out of the program before the first phase, and 5 surgeons did not complete all preceptor visits. Most survey respondents commented that the program met or exceeded their expectations.

CONCLUSIONS

Some trainees were unable to complete proctor visits because of professional responsibilities at home or because of difficulty in advanced scheduling of procedures. More rigorous selection and stronger administrative controls might have reduced program dropouts. The instructional model worked extremely well for properly selected and motivated surgeons.