The educating enigma: Does training level impact postoperative outcome in bariatric surgery?

Metabolic and Bariatric Surgeon Criteria-An International Experts' Consensus

PURPOSE

With the global epidemic of obesity, the importance of metabolic and bariatric surgery (MBS) is greater than ever before. Performing these surgeries requires academic training and the completion of a dedicated fellowship training program. This study aimed to develop guidelines based on expert consensus using a modified Delphi method to create the criteria for metabolic and bariatric surgeons that must be mastered before obtaining privileges to perform MBS.

METHODS

Eighty-nine recognized MBS surgeons from 42 countries participated in the Modified Delphi consensus to vote on 30 statements in two rounds. An agreement/disagreement among ≥ 70.0% of the experts was regarded to indicate a consensus.

RESULTS

Consensus was reached on 29 out of 30 statements. Most experts agreed that before getting privileges to perform MBS, surgeons must hold a general surgery degree and complete or have completed a dedicated fellowship training program. The experts agreed that the learning curves for the various operative procedures are approximately 25-50 operations for the LSG, 50-75 for the OAGB, and 75-100 for the RYGB. 93.1% of experts agreed that MBS surgeons should diligently record patients' data in their National or Global database.

CONCLUSION

MBS surgeons should have a degree in general surgery and have been enrolled in a dedicated fellowship training program with a structured curriculum. The learning curve of MBS procedures is procedure dependent. MBS surgeons must demonstrate proficiency in managing postoperative complications, collaborate within a multidisciplinary team, commit to a minimum 2-year patient follow-up, and actively engage in national and international MBS societies.

The Impact of Trainee Involvement on Outcomes in Metabolic and Bariatric Surgery

BACKGROUND

The number of bariatric operations performed in the USA rises annually. Trainee exposure to this field is necessary to ensure competency in future surgical generations. However, the safety of trainee involvement of these operations has been called into question.

OBJECTIVES

The aim of our study is to describe differences in outcomes between trainees and non-trainees as first assistants (FA) in sleeve gastrectomy (SG).

SETTING

The Metabolic and Bariatric Surgery Accreditation and Quality Improvement Program (MBSAQIP) database METHODS: Patients from the MBSAQIP database who underwent primary SG from 2015 to 2020 were identified. Statistical analysis included two-tailed t-tests and χ2-tests to evaluate the impact of trainees (residents and fellows) compared to non-trainees on post-operative morbidity and operative time.

RESULTS

Of the 559,324 cases, 25.8% were performed with trainees as FA. Operative length was 27.9% longer in trainee cases. In the trainee group, there was a higher risk of conversion to open procedure (OR 1.32), readmission (OR 1.19), and specific complications (cardiac arrest, myocardial infarction, progressive renal insufficiency, pulmonary embolism, sepsis, transfusion, intubation, UTI, VTE, ICU admission, and reintervention), though overall rates were < 1% in each group. Non-trainees had a higher rate of septic shock (OR 1.4). No significant difference was seen in all other perioperative outcomes.

CONCLUSION

Trainee involvement in SG leads to longer operative times without a clinically significant increase in morbidity and mortality. Such findings should be used to counsel patients and shape expectations for surgeons and hospitals. A focused bariatric surgery trainee curriculum may lessen this gap.

Outcomes in Minimally Invasive Sleeve Gastrectomy and Implications for Surgical Resident Education

Introduction: Resident participation in advanced minimally invasive and bariatric surgeries is controversial. The aim of this study is to evaluate the safety of resident participation in robotic and laparoscopic sleeve gastrectomy (SG). Methods: Prospectively maintained institutional Metabolic and Bariatric Surgery Accreditation Quality Improvement Program database was used to identify patients who underwent SG, which was performed at our institution between January, 2018, and December, 2021. Operative notes were reviewed to determine the training level of the assistant. These were then classified into 7 groups: postgraduate years 1-5 residents, bariatric fellow (6), and attending surgeons (7). Each group was stratified and their outcomes, which included duration of surgery, length of stay (LOS), postoperative complications, readmissions, and reoperations, were compared. Results: Out of 2571 cases, the assistants for the procedures were minimally invasive surgery (MIS) fellows (n = 863, 58.8%), fifth- and fourth-year residents (n = 228, 15.5%), third- and second-year residents (n = 164, 11.2%), no assistants (n = 212, 14.5%), and 134 robotic SG. Mean body mass index was higher in cases wherein the attending surgeon performed by himself (47.1, standard deviation 7.7) when compared with other groups. There were no conversions to open. Mean LOS was 1.3 days, and there was no difference between groups (P = .242). Postoperative complications were low, with 11 reoperations in 30 days (3.3%) and no difference between groups. There was no mortality in 30 or 90 days. Conclusion: Postoperative outcomes were similar for patients who underwent SG regardless of the assistant's level of training. Including residents in bariatric procedures is safe and does not affect patient safety. Encouraging residents to participate in complex MIS procedures is recommended as part of their training.

Optimizing Bariatric Surgery outcomes: the impact of preoperative elevated hemoglobin A1c levels on composite perioperative outcome measures

Introduction

The use of bariatric surgery in the management of obesity and its related morbidity has significantly increased in the US over the past decade. There is a lack of data on the impact of optimal preoperative glycemic control on the morbidity and mortality following bariatric surgery. The aim of this study was to analyze the impact of hemoglobin (Hb) A1c > 7 on outcomes among patients undergoing Roux-en-Y gastric bypass (RYGB) or sleeve gastrectomy (SG).

Methods

Data were extracted from the Metabolic and Bariatric Surgery Accreditation and Quality Improvement Program (2017) and limited to patients undergoing an elective laparoscopic RYGB or SG. Multivariable logistic regression was conducted to adjust for other preoperative variables.

Results

A total number of 31,060 (69.3%) patients underwent SG, while 13,754 (30.7%) received RYGB. Patients who were older, male, non-Hispanic, smokers, and those with a higher American Society of Anesthesiologist Classification (ASA) score were more likely to have elevated HbA1c levels. Compared to individuals with normal HbA1c levels, patients with elevated levels had no significant difference in mortality (p = 0.902) but did have a difference in composite morbidity and mortality (p < 0.001). On multivariable analysis, elevated HbA1c, older age, increasing body mass index (BMI), elevated creatinine, longer operations, African American race, receiving RYGB, and having a trainee as surgical assistant were found to increase the odds of having an adverse outcome. No significant difference was found within smoking status, sex, ASA Classification, robotic vs laparoscopic, or if a second attending surgeon was assisting.

Conclusions

HbA1c levels and presence of trainees in the OR are modifiable preoperative risk factors for adverse events following bariatric surgery. Improving preoperative glycemic control may be an effective and achievable quality improvement measure.

Surgical resident training program to perform laparoscopic bariatric procedures: Are safety and postoperative outcomes compromised?

INTRODUCTION

Laparoscopic bariatric procedures such as laparoscopic Roux-en-Y gastric bypass (LRYGB) are technically demanding and require a long learning curve. Little is known about whether surgical resident (SR) training programs to perform these procedures are safe and feasible. This study aims to evaluate the results of our SR training program to perform LRYGB.

METHODS

We designed a retrospective study including patients with LRYGB between January 2014 and December 2018, comparing SR results to experienced bariatric surgeons (EBS). In our country, SR have a five-year surgical formative period, and in the fourth year they are trained for 6 months in our bariatric surgery unit, from January to June. In the beginning, they perform different steps of this procedure, to finally complete an LRYGB. We collected demographic data, comorbidities, intraoperative outcomes, and postoperative complications and outcomes after a one-year follow-up.

RESULTS

Two hundred and eight patients were eligible for inclusion: 67 in group I (SR), and 141 in group II (EBS). Both groups were comparable. There was no statistically significant difference in operating time (166.45min in group I vs. 156.69min in group II; P=0.156). Conversion to open surgery, hospital stay, postoperative complications, and short-term outcomes had no significant differences between the two groups. There was no mortality registered during this period.

CONCLUSION

Implementation of LRYGB stepwise learning as part of an SR training program is safe, and results are comparable to EBS, without loss of efficiency. Therefore, it is feasible to train SR in bariatric surgery under EBS supervision.