Longitudinal survey of cranial case log entries during neurological surgery residency training

Abstract

OBJECTIVE The purpose of this study was to analyze national trends in adult cranial cases performed by neurological surgery residents as logged into the Accreditation Council for Graduate Medical Education (ACGME) system. METHODS The ACGME resident case logs were retrospectively reviewed for the years 2009-2017. In these reports, the national average of cases performed by graduating residents is organized by year, type of procedure, and level of resident. These logs were analyzed in order to evaluate trends in residency experience with adult cranial procedures. The reported number of cranial procedures was compared to the ACGME neurosurgical minimum requirements for each surgical category. A linear regression analysis was conducted in order to identify changes in the average number of procedures performed by residents graduating during the study period. Additionally, a 1-sample t-test was performed to compare reported case volumes to the ACGME required minimums. RESULTS An average of 577 total cranial procedures were performed throughout residency training for each of the 1631 residents graduating between 2009 and 2017. The total caseload for graduating residents upon completion of training increased by an average of 26.59 cases each year (r = 0.99). Additionally, caseloads in most major procedural subspecialty categories increased; this excludes open vascular and extracranial vascular categories, which showed, respectively, a decrease and no change. The majority of cranial procedures performed throughout residency pertained to tumor (mean 158.38 operations), trauma (mean 102.17 operations), and CSF diversion (mean 76.12 operations). Cranial procedures pertaining to the subspecialties of trauma and functional neurosurgery showed the greatest rise in total procedures, increasing at 8.23 (r = 0.91) and 6.44 (r = 0.95) procedures per graduating year, respectively. CONCLUSIONS Neurosurgical residents reported increasing case volumes for most cranial procedures between 2009 and 2017. This increase was observed despite work hour limitations set forth in 2003 and 2011. Of note, an inverse relationship between open vascular and endovascular procedures was observed, with a decrease in open vascular procedures and an increase in endovascular procedures performed during the study period. When compared to the ACGME required minimums, neurosurgery residents gained much more exposure to cranial procedures than was expected. Additionally, a larger caseload throughout training suggests that residents are graduating with greater competency and experience in cranial neurosurgery.

Neurosurgical Resident Exposure to Pediatric Neurosurgery: An Analysis of Resident Case Logs

“…For example, residents completed more than 4 times the required ACGME minimum for pediatric CSF diversion procedures and 3 times the required ACGME minimum for pediatric spinal procedures. This trend in the number of logged cases vastly surpassing the required minimums was also reported in adult cranial and spine procedures [3, 4]. Thus, the data in this study demonstrate that residents are graduating with far more experience than what the ACGME considers minimally acceptable.…”

“…Resident experience in pediatric neurosurgery does not seem to have quite the growth observed in previous studies analyzing adult cases [3, 4]. The total number of adult spine procedures performed by graduating US neurosurgical residents demonstrated an average increase of almost 20 procedures at every subsequent graduate year between 2013 and 2017 [3].…”

“…The total number of adult spine procedures performed by graduating US neurosurgical residents demonstrated an average increase of almost 20 procedures at every subsequent graduate year between 2013 and 2017 [3]. During this same time period, residents also performed an increasing number of adult cranial procedures each subsequent graduate year, with an average increase of approximately 27 cases over the course of residency for each subsequent year of graduation [4]. Additionally, residents were shown to log many more adult cases than pediatric, which is to be expected given that graduating residents are expected to be competent in adult neurosurgery, whereas those interested in pediatrics pursue additional fellowship training.…”

“…These studies found that neurosurgical residents performed vastly more cranial and spinal cases than required by ACGME and that resident exposure to these types of cases has steadily increased over the past several years [3, 4]. However, no study to date has analyzed U.S. neurosurgical resident exposure to pediatric neurosurgery cases using the ACGME case log system.…”

“…Prior studies have evaluated national trends in neurosurgery resident participation in both cranial and spinal cases by measuring resident cases logged into the ACGME system [3, 4]. These studies found that neurosurgical residents performed vastly more cranial and spinal cases than required by ACGME and that resident exposure to these types of cases has steadily increased over the past several years [3, 4].…”