Objective Structured Assessment of Technical Skill in assessing technical competence to carry out caesarean section with increasing seniority

Complex obstetrical surgery: building a team and defining roles

As the number of placenta accreta spectrum cases continues to rise, the gap in surgical skills in labor and delivery units becomes more apparent. Recent scholarly work has highlighted the diminishing advanced surgical skills among obstetrician-gynecologists, particularly among new graduates. Therefore, it has become a practice in many institutions to refer complex cesarean deliveries and obstetrical hysterectomies to subspecialists, specifically gynecologic oncologists. Hence, in this commentary, we propose a process through which key personnel within departments of obstetrics and gynecology are identified and their appropriate level of involvement in cases of complex obstetrical surgery is delineated. In doing so, we describe the surgical skills expected from each provider level so that the cesarean delivery complexity level can be matched with specific surgical expertise. Through this process, an obstetrician-led complex obstetrical surgery team is formed. Ultimately, the goal of this process is 2-fold; first, to return cases with higher levels of surgical complexity back to obstetricians and, second, to reduce the surgical back-up burden from gynecology subspecialists such as gynecologic oncologists.

The potential value of surrogate performance markers at caesarean section for the assessment of surgical competence

OBJECTIVES

We hypothsised that surrogate markers of competence (procedure time and estimated surgical blood loss) could be of value when assessing competence for trainees learning to undertake lower segment caesarean section (LSCS). The study aim was to investigate differences in surrogate markers of surgical competence at LSCS between different training grades of primary surgeon and for different grades of surgical assistant; to assess the potential value of using these surrogate markers in overall assessments of surgical competence.

STUDY DESIGN

Operating records for elective LSCS were reviewed from January 2007 to January 2015. Uncomplicated LSCS where a junior trainee (ST2/ST3) or a senior trainee (ST6+) was the primary surgeon were included. Inclusion criteria were LSCS with body mass index less than 35, singleton pregnancy, greater than 34 weeks' gestation, no more than one previous caesarean section and no low-lying placenta. Procedure time, estimated blood loss and the effect of the grade of surgical assistant (consultant or trainee) on these were compared overall for all surgeons at ST2 level, ST3 level and senior level (ST6+) using Student's t test and effect size calculation (Cohen test).

RESULTS

During the study period 3099 uncomplicated LSCS were performed by 60 trainees: 1367 by ST2, 1085 by ST3 and 646 by senior trainees (ST6+). Mean procedure times and recorded estimated blood loss decreased significantly for each level of training (p < 0.05). The degree of experience of the surgical assistant was also associated with reduced procedure times and blood loss, this was significant for trainees in ST2 when assisted by a consultant (p < 0.05).

CONCLUSIONS

Training progression is associated with a reduction in procedure time and estimated blood loss, which are both surrogate markers of competence at LSCS. Current objective structured assessments of technical competence for trainees (OSATS) do not take these metrics into account when assessing performance. An enhanced assessment of trainees undertaking LSCS is suggested, reviewing both objective structured assessments of technical performance (OSATS) and surrogate markers of performance recorded in a surgical logbook to provide a more comprehensive assessment of overall competence.