Surgeons' expertise during critical event in laparoscopic cholecystectomy: An expert-novice comparison using protocol analysis

Learning Games: A New Tool for Orthodontic Education

Learning games that are based on current scientific concepts are underutilized in dental education. This paper explores the relevant science of learning and discusses several principles that are conducive to learning and teaching in an educational setting, namely retrieval practice, feedback, motivation, and engagement. A discussion of learning games in health professional education ensues, followed by a description of relevant best practices in game design for learning. This paper concludes by presenting Dealodontics©, a card game developed at New York University College of Dentistry with the goal of helping second-year dental students review, practice, and apply basic skills relevant to their orthodontics competency requirements.

Response Process Validity Evidence for Video Commentary Assessment in Surgery: A Qualitative Study

OBJECTIVES

Well-developed mental representations of a task are fundamental to proficient performance. 'Video Commentary' (VC) is a novel assessment intended to measure mental representations of surgical tasks that would reflect an important aspect of task proficiency. Whether examinees' actual response processes align with this intent remains unknown. As part of ongoing validation of the assessment, we sought to understand examinees' response processes in VC.

DESIGN

Grounded theory qualitative study. In 2019, residents were interviewed about their understanding of and approach to VC. Using grounded theory, we created a theoretical model explaining relationships among factors that influence residents' response processes and performance. Residents' perceived purpose of VC was also explored using Likert-type questions.

SETTING

Academic surgical residency program.

PARTICIPANTS

Forty-eight surgical residents (PGY-1 to PGY-5).

RESULTS

Analysis of narrative comments indicated that residents' perceived purposes of VC generally align with the educator's intent. Resident response processes are influenced by test characteristics, residents' perception and understanding of VC, and residents' personal characteristics. Four strategies seem to guide how residents respond, namely a focus on speed, points, logic, and relevance. Quantitative results indicated residents believe VC scores reflect their ability to speak quickly, ability to think quickly, and knowledge of anatomy (mean = 5.0, 4.5, and 4.4 respectively [1 = strongly disagree, 6 = strongly agree]). PGY-1 and PGY-2 residents tend to focus on naming facts whereas PGY-4 and PGY-5 residents focus on providing comprehensive descriptions.

CONCLUSIONS

Residents generally have an accurate understanding of the purpose of VC. However, their use of different approaches could represent a threat to validity. The response strategies of speed, points, logic, and relevance may inform other clinical skills assessments.

Characterizing robotic surgical expertise: An exploratory study of neural activation during mental imagery of robotic suturing

BACKGROUND

Mental imagery (MI) aids skill acquisition, however, it is unclear to what extend MI is used by experienced surgeons. The purpose of this study was to assess differences in MI of participants with varying surgical expertise in robotic surgery.

METHODS

Students, residents, and surgeons completed the Mental Imagery Questionnaire to assess MI for robotic suturing. Participants then completed robotic simulator tasks, and imagined performing robotic suturing while being assessed with electroencephalogram (EEG).

RESULTS

Attending surgeons reported higher MI for robotic suturing, and EEG revealed higher neural activation during imagery of robotic suturing than other groups.

CONCLUSIONS

Experienced surgeons displayed higher MI ability for robotic suturing, and displayed higher cortical activity in the frontal and parietal areas of the brain, which is associated with more advanced motor imagery. MI appears to be a component of robotic surgery expertise.

How Wearable Technology Can Facilitate AI Analysis of Surgical Videos

Operative video has great potential to enable instant replays of critical surgical decisions for training and quality review. Recently, artificial intelligence (AI) has shown early promise as a method of enabling efficient video review, analysis, and segmentation. Despite the progress with AI analysis of surgical videos, more work needs to be done to improve the accuracy and efficiency of AI-driven video analysis. At a recent consensus conference held on July 10-11, 2020, 8 research teams shared their work using AI for surgical video analysis. Four of the teams showcased the utility of wearable technology in providing objective surgical metrics. Data from these technologies were shown to pinpoint important cognitive and motor actions during operative tasks and procedures. The results support the utility of wearable technology to facilitate efficient and accurate video analysis and segmentation.

Impact of intra-operative hypotension on mortality rates and post-operative complications in dogs undergoing cholecystectomy

OBJECTIVES

To report the mortality rate within a cohort of dogs undergoing cholecystectomy and investigate the impact of intra-operative hypotension on mortality.

MATERIALS AND METHODS

Clinical records at five UK referral centres were reviewed for dogs undergoing cholecystectomy. Data collected included presenting signs, pre-operative blood test results, intra-operative data including frequency and duration of hypotension and the incidence and type of post-operative complications.

RESULTS

Data from 119 dogs were included. Sixteen dogs (13%) died before discharge and by 28 days after surgery the total mortality was 19 dogs (17%). Hypotension lasting over 10 minutes during general anaesthesia occurred in 65 dogs (54.6%), with a mean ± sd duration of 36.1 ± 30.0 minutes. Intra-operative hypotension or the number of hypotensive episodes did not appear to be associated with in-hospital or 28-day mortality. American Society of Anaesthesiologists grade (of fitness for surgery) was significantly associated with both in-hospital and 28-day mortality on univariable analysis, as were post-operative hypoproteinaemia, ileus and pancreatitis. However on multivariable analysis, only ileus and pancreatitis were found to significantly impact mortality.

CLINICAL SIGNIFICANCE

Dogs presenting with a higher American Society of Anaesthesiologists grade appear to have a higher risk of mortality, although intra-operative hypotension did not appear to be part of this risk.