SAGES guideline for the diagnosis and treatment of appendicitis

BACKGROUND

Appendicitis is an extremely common disease with a variety of medical and surgical treatment approaches. A multidisciplinary expert panel was convened to develop evidence-based recommendations to support clinicians and patients in decisions regarding the diagnosis and treatment of appendicitis.

METHODS

A systematic review was conducted from 2010 to 2022 to answer 8 key questions relating to the diagnosis of appendicitis, operative or nonoperative management, and specific technical and post-operative issues for appendectomy. The results of this systematic review were then presented to a panel of adult and pediatric surgeons. Evidence-based recommendations were formulated using the GRADE methodology by subject experts.

RESULTS

Conditional recommendations were made in favor of uncomplicated and complicated appendicitis being managed operatively, either delayed (>12h) or immediate operation (<12h), either suction and lavage or suction alone, no routine drain placement, treatment with short-term antibiotics postoperatively for complicated appendicitis, and complicated appendicitis previously treated nonoperatively undergoing interval appendectomy. A conditional recommendation signals that the benefits of adhering to a recommendation probably outweigh the harms although it does also indicate uncertainty.

CONCLUSIONS

These recommendations should provide guidance with regard to current controversies in appendicitis. The panel also highlighted future research opportunities where the evidence base can be strengthened.

Does the Metabolic and Bariatric Surgery Accreditation and Quality Improvement Program bariatric risk/benefit calculator hold its weight? An assessment of its accuracy

BACKGROUND

Bariatric clinical calculators have already been implemented in clinical practice to provide objective predictions of complications and outcomes. The Metabolic and Bariatric Surgery Accreditation and Quality Improvement Program (MBSAQIP) Surgical Risk/Benefit Calculator is the most comprehensive risk calculator in bariatric surgery.

OBJECTIVES

Evaluate the accuracy of the calculator predictions regarding the 30-day complication risk, 1-year weight loss outcomes, and comorbidity resolution.

SETTING

MBSAQIP-accredited center.

METHODS

All adult patients who underwent primary laparoscopic Roux-en-Y gastric bypass (RYGB) or sleeve gastrectomy at our institution between 2012 and 2019 were included. Baseline characteristics were used to generate the individualized outcome predictions for each patient through the bariatric risk calculator and were compared to actual patient outcomes. Statistical analysis was performed using c-statistics, linear regression models, and McNemmar chi-square test.

RESULTS

One thousand four hundred fifty-three patients with a median age of 45 (37, 55) and consisting of 80.1% females were included in the study. The c-statistics for the complications and comorbidity resolution ranged from .533 for obstructive sleep apnea remission to .675 for 30-day reoperation. The number of comorbidity resolutions predicted by the calculator was significantly higher than the actual remissions for diabetes, hyperlipidemia, hypertension and obstructive sleep apnea (P < .001). On average, the calculator body mass index (BMI) predictions deviated from the observed BMI measurement by 3.24 kg/m2. The RYGB procedure (Coef -.89; P = .005) and preoperative BMI (Coef -.4; P = .012) were risk factors associated with larger absolute difference between the predicted and observed BMI.

CONCLUSIONS

The MBSAQIP Surgical Risk/Benefit Calculator prediction models for 1-year BMI, 30-day reoperation, and reintervention risks were fairly well calibrated with an acceptable level of discrimination except for obstructive sleep apnea remission. The 1-year BMI estimations were less accurate for RYGB patients and cases with very high or low preoperative BMI measurements. Therefore, the bariatric risk calculator constitutes a helpful tool that has a place in preoperative counseling.

Evaluation of operating room inefficiencies and their impact on operating room duration using a surgical app

BACKGROUND

Efficient utilization of the operating room (OR) is essential. Inefficiencies are thought to cause preventable delays. Our goal was to identify OR incidents causing delays and estimate their impact on the duration of various general surgery procedures.

MATERIALS

Three trained observers prospectively collected intraoperative data using the ExplORer Surgical app, a tool that helped capture incidents causing delays. The impact of each incident on case duration was assessed using multivariable analysis.

RESULTS

151 general surgery procedures were observed. The mean number of incidents was 2.7 per each case that averaged 109min. On average, each incident caused a 2.8 ​min delay (p ​< ​0.001), however, some incidents were associated with longer delays. The procedural step of each procedure most susceptible to incidents was also defined.

CONCLUSION

The identification of the type of incidents and the procedural step during which they occur may allow targeted interventions to optimize OR efficiency and decrease operative time.

Patients' perspectives on weight recurrence after bariatric surgery: a single-center survey

BACKGROUND

Weight recurrence (WR) affects nearly 20% of patients after bariatric surgery and may decrease its benefits, affecting patients' quality of life negatively. Patient perspectives on WR are not well known.

OBJECTIVES

Assess patient needs, goals, and preferences regarding WR treatment.

SETTING

Single MBSAQIP-accredited academic center, and online recruitment.

METHODS

An 18-item, web-based survey was distributed to adults seeking treatment for WR after a primary bariatric surgery (PBS), in addition to online recruitment, between 2021 and 2023. Survey items included somatometric data, questions about the importance of factors for successful weight loss, procedure decision-making, and treatment expectations.

RESULTS

Fifty-six patients with > 10% increase from their nadir weight were included in the study. Patients had initially undergone Roux-en-Y gastric bypass (62.5%), sleeve gastrectomy (28.6%), adjustable gastric banding (3.6%), or other procedures (5.3%). When assessing their satisfaction with PBS, 57.1% were somewhat/extremely satisfied, 33.9% somewhat/extremely dissatisfied, while 8.9% were ambivalent. Patients considered the expected benefits (for example, weight loss) as the most important factor when choosing a treatment option for WR. Patient goals included "feeling good about myself" (96.4% very/extremely important), "being able to resume activities I could not do before" (91% very/extremely important), and "improved quality of life" and "-life expectancy" (> 90% very/extremely important). Finally, RBS, lifestyle modification with peer support, and anti-obesity medication were ranked as first treatment options for WR by 40%, 38.8%, and 29.8% of the respondents, respectively.

CONCLUSIONS

Patients considered weight loss as the most important factor when choosing treatment modality for WR, with RBS and lifestyle changes being preferred over weight-loss medications. Large prospective randomized trials are needed to counsel this patient population better.

Objective Nontechnical Skills Measurement Using Sensor-based Behavior Metrics in Surgical Teams

OBJECTIVE

The purpose of this study was to identify objective measures that predict surgeon nontechnical skills (NTS) during surgery.

BACKGROUND

NTS are cognitive and social skills that impact operative performance and patient outcomes. Current methods for NTS assessment in surgery rely on observation-based tools to rate intraoperative behavior. These tools are resource intensive (e.g., time for observation or manual labeling) to perform; therefore, more efficient approaches are needed.

METHOD

Thirty-four robotic-assisted surgeries were observed. Proximity sensors were placed on the surgical team and voice recorders were placed on the surgeon. Surgeon NTS was assessed by trained observers using the NonTechnical Skills for Surgeons (NOTSS) tool. NTS behavior metrics from the sensors included communication, speech, and proximity features. The metrics were used to develop mixed effect models to predict NOTSS score and in machine learning classifiers to distinguish between exemplar NTS scores (highest NOTSS score) and non-exemplar scores.

RESULTS

NTS metrics were collected from 16 nurses, 12 assistants, 11 anesthesiologists, and four surgeons. Nineteen behavior features and overall NOTSS score were significantly correlated (12 communication features, two speech features, five proximity features). The random forest classifier achieved the highest accuracy of 70% (80% F1 score) to predict exemplar NTS score.

CONCLUSION

Sensor-based measures of communication, speech, and proximity can potentially predict NOTSS scores of surgeons during robotic-assisted surgery. These sensing-based approaches can be utilized for further reducing resource costs of NTS and team performance assessment in surgical environments.

APPLICATION

Sensor-based assessment of operative teams' behaviors can lead to objective, real-time NTS measurement.

SAGES peritoneal dialysis access guideline update 2023

BACKGROUND

Minimally invasive surgery has been used for both de novo insertion and salvage of peritoneal dialysis (PD) catheters. Advanced laparoscopic, basic laparoscopic, open, and image-guided techniques have evolved as the most popular techniques. The aim of this guideline was to develop evidence-based guidelines that support surgeons, patients, and other physicians in decisions on minimally invasive peritoneal dialysis access and the salvage of malfunctioning catheters in both adults and children.

METHODS

A guidelines committee panel of the Society of American Gastrointestinal and Endoscopic Surgeons reviewed the literature since the prior guideline was published in 2014 and developed seven key questions in adults and four in children. After a systematic review of the literature, by the panel, evidence-based recommendations were formulated using the Grading of Recommendations Assessment, Development and Evaluation approach. Recommendations for future research were also proposed.

RESULTS

After systematic review, data extraction, and evidence to decision meetings, the panel agreed on twelve recommendations for the peri-operative performance of laparoscopic peritoneal dialysis access surgery and management of catheter dysfunction.

CONCLUSIONS

In the adult population, conditional recommendations were made in favor of: staged hernia repair followed by PD catheter insertion over simultaneous and traditional start over urgent start of PD when medically possible. Furthermore, the panel suggested advanced laparoscopic insertion techniques rather than basic laparoscopic techniques or open insertion. Conditional recommendations were made for either advanced laparoscopic or image-guided percutaneous insertion and for either nonoperative or operative salvage. A recommendation could not be made regarding concomitant clean-contaminated surgery in adults. In the pediatric population, conditional recommendations were made for either traditional or urgent start of PD, concomitant clean or clean-contaminated surgery and PD catheter placement rather than staged, and advanced laparoscopic placement rather than basic or open insertion.

Diagnosis and treatment of appendicitis: systematic review and meta-analysis

BACKGROUND

The optimal diagnosis and treatment of appendicitis remains controversial. This systematic review details the evidence and current best practices for the evaluation and management of uncomplicated and complicated appendicitis in adults and children.

METHODS

Eight questions regarding the diagnosis and management of appendicitis were formulated. PubMed, Embase, CINAHL, Cochrane and clinicaltrials.gov/NLM were queried for articles published from 2010 to 2022 with key words related to at least one question. Randomized and non-randomized studies were included. Two reviewers screened each publication for eligibility and then extracted data from eligible studies. Random effects meta-analyses were performed on all quantitative data. The quality of randomized and non-randomized studies was assessed using the Cochrane Risk of Bias 2.0 or Newcastle Ottawa Scale, respectively.

RESULTS

2792 studies were screened and 261 were included. Most had a high risk of bias. Computerized tomography scan yielded the highest sensitivity (> 80%) and specificity (> 93%) in the adult population, although high variability existed. In adults with uncomplicated appendicitis, non-operative management resulted in higher odds of readmission (OR 6.10) and need for operation (OR 20.09), but less time to return to work/school (SMD - 1.78). In pediatric patients with uncomplicated appendicitis, non-operative management also resulted in higher odds of need for operation (OR 38.31). In adult patients with complicated appendicitis, there were higher odds of need for operation following antibiotic treatment only (OR 29.00), while pediatric patients had higher odds of abscess formation (OR 2.23). In pediatric patients undergoing appendectomy for complicated appendicitis, higher risk of reoperation at any time point was observed in patients who had drains placed at the time of operation (RR 2.04).

CONCLUSIONS

This review demonstrates the diagnosis and treatment of appendicitis remains nuanced. A personalized approach and appropriate patient selection remain key to treatment success. Further research on controversies in treatment would be useful for optimal management.

Relationship between stress and resident non-technical skills during interdisciplinary trauma simulations

BACKGROUND

Non-technical skills, such as communication and situation awareness, are vital for patient care and effective surgical team performance. Previous research has found that residents' perceived stress is associated with poorer non-technical skills; however, few studies have investigated the relationship between objectively assessed stress and non-technical skills. Accordingly, the purpose of this study was to assess the relationship between objectively assessed stress and non-technical skills.

METHODS

Emergency medicine and surgery residents voluntarily participated in this study. Residents were randomly assigned to trauma teams to manage critically ill patients. Acute stress was assessed objectively using a chest-strap heart rate monitor, which measured average heart rate and heart rate variability. Participants also evaluated perceived stress and workload using the 6-item version of the State-Trait Anxiety Inventory and the Surgery Task Load Index. Non-technical skills were assessed by faculty raters using the non-technical skills scale for trauma. Pearson's correlation coefficients were used to examine relationships between all variables.

RESULTS

Forty-one residents participated in our study. Heart rate variability (where higher values reflect lower stress) was positively correlated with residents' non-technical skills overall and leadership, communication, and decision-making. Average heart rate was negatively correlated with residents' communication.

CONCLUSION

Higher objectively assessed stress was associated with poorer non-technical skills in general and nearly all non-technical skills domains of the T-NOTECHS. Clearly, stress has a deleterious effect on residents' non-technical skills during trauma situations, and given the importance of non-technical skills in surgical care, educators should consider implementing mental skills training to reduce residents' stress and optimize non-technical skills during trauma situations.

Venous thromboembolism (VTE) prophylaxis after bariatric surgery: a national survey of MBSAQIP director practices

BACKGROUND

Venous thromboembolism (VTE) is the most common cause of death following metabolic/bariatric surgery (MBS), with most events occurring after discharge. The available evidence on ideal prophylaxis type, dosage, and duration after discharge is limited.

OBJECTIVES

Assess metabolic/bariatric surgeon VTE prophylaxis practices and define existing variability.

SETTING

Metabolic and Bariatric Surgery Accreditation and Quality Improvement Program (MBSAQIP)-accredited centers.

METHODS

The members of the ASMBS Research Committee developed and administered a web-based survey to MBSAQIP medical directors and ASMBS members to examine the differences in clinical practice regarding the administration of VTE prophylaxis after MBS.

RESULTS

Overall, 264 metabolic/bariatric surgeons (136 medical directors and 128 ASMBS members) participated in the survey. Both mechanical and chemical VTE prophylaxis was used by 97.1% of the participants, knee-high compression devices by 84.7%, enoxaparin (32.4% 40 mg every 24 hours, 22.7% 40 mg every 12 hours, 24.4% adjusted the dose based on body mass index) by 56.5%, and heparin (46.1% 5000 units every 8 hours, 22.6% 5000 units every 12 hours, 20.9% 5000 units once preoperatively) by 38.1%. Most surgeons (81.6%) administered the first dose preoperatively, while the first postoperative dose was given on the evening of surgery by 44% or the next morning by 42.2%. Extended VTE prophylaxis was prescribed for 2 weeks by 38.7% and 4 weeks by 28.9%.

CONCLUSIONS

VTE prophylaxis practices vary widely among metabolic/bariatric surgeons. Variability may be related to limited available comparative evidence. Large prospective clinical trials are needed to define optimal practices for VTE risk stratification and prophylaxis in bariatric surgery patients.

Proton pump inhibitor prophylaxis after Roux-en-Y gastric bypass: A national survey of surgeon practices

BACKGROUND

Proton pump inhibitors (PPIs) are frequently used after Roux-en-Y gastric bypass (RYGB) to prevent marginal ulceration. The optimal duration of PPI treatment after surgery to minimize ulcer development is unclear.

OBJECTIVES

Assess bariatric surgeon practice variability regarding postoperative PPI prophylaxis.

SETTING

Survey of medical directors of Metabolic and Bariatric Surgery Accreditation and Quality Improvement Program-accredited centers.

METHODS

Members of the American Society for Metabolic and Bariatric Surgery research committee developed and administered a web-based anonymous survey in November 2021 to bariatric surgeons of Metabolic and Bariatric Surgery Accreditation and Quality Improvement Program-accredited programs detailing questions related to surgeons' use of PPI after RYGB including patient selection, medication, dosage, and treatment duration.

RESULTS

The survey was completed by 112 surgeons (response rate: 52.6%). PPIs were prescribed by 85.4% of surgeons for all patients during their hospitalization, 3.9% for selective patients, and 10.7% not at all. After discharge, 90.3% prescribed PPIs. Pantoprazole was most often used during hospitalization (38.5%), while omeprazole was most prescribed (61.7%) after discharge. The duration of postoperative PPI administration varied; it was 3 months in 43.6%, 1 month in 20.2%, and 6 months in 18.6% of patients. Finally, surgeons' practice setting and case volume were not associated with the duration of prophylactic PPI administration after RYGB.

CONCLUSIONS

PPI administration practices vary widely among surgeons after RYGB, which may be related to the limited comparative evidence and guidelines on best duration of PPI administration. Large prospective clinical trials with objective outcome measures are needed to define optimal practices for PPI prophylaxis after RYGB to maximize clinical benefit.

Multi-society consensus conference and guideline on the treatment of gastroesophageal reflux disease (GERD)

BACKGROUND

Gastroesophageal reflux disease (GERD) is one of the most common diseases in North America and globally. The aim of this guideline is to provide evidence-based recommendations regarding the most utilized and available endoscopic and surgical treatments for GERD.

METHODS

Systematic literature reviews were conducted for 4 key questions regarding the surgical and endoscopic treatments for GERD in adults: preoperative evaluation, endoscopic vs surgical or medical treatment, complete vs partial fundoplication, and treatment for obesity (body mass index [BMI] ≥ 35 kg/m²) and concomitant GERD. Evidence-based recommendations were formulated using the GRADE methodology by subject experts. Recommendations for future research were also proposed.

RESULTS

The consensus provided 13 recommendations. Through the development of these evidence-based recommendations, an algorithm was proposed for aid in the treatment of GERD. Patients with typical symptoms should undergo upper endoscopy, manometry, and pH-testing; additional testing may be required for patients with atypical or extra-esophageal symptoms. Patients with normal or abnormal findings on manometry should consider undergoing partial fundoplication. Magnetic sphincter augmentation or fundoplication are appropriate surgical procedures for adults with GERD. For patients who wish to avoid surgery, the Stretta procedure and transoral incisionless fundoplication (TIF 2.0) were found to have better outcomes than proton pump inhibitors alone. Patients with concomitant obesity were recommended to undergo either gastric bypass or fundoplication, although patients with severe comorbid disease or BMI > 50 should undergo Roux-en-Y gastric bypass for the additional benefits that follow weight loss.

CONCLUSION

Using the recommendations an algorithm was developed by this panel, so that physicians may better counsel their patients with GERD. There are certain patient factors that have been excluded from included studies/trials, and so these recommendations should not replace surgeon-patient decision making. Engaging in the identified research areas may improve future care for GERD patients.

Patient perspectives on the usefulness of the MBSAQIP Bariatric Surgical Risk/Benefit Calculator: a randomized controlled trial

BACKGROUND

The Metabolic and Bariatric Surgery Accreditation and Quality Improvement Program (MBSAQIP) Bariatric Surgical Risk/Benefit Calculator uses procedure-specific prediction models to generate individualized surgical risk/outcome estimates. This tool helps guide informed consent and operative selection. We hypothesized that calculator use would influence patient procedure choice.

OBJECTIVE

To assess patient perspectives on the bariatric surgical calculator.

SETTING

A randomized controlled trial at an MBSAQIP-accredited center.

METHODS

During the preoperative bariatric surgical office consultation, patients were randomized into 2 groups: the control group received conventional surgeon-led counseling, whereas surgeons used the risk/benefit calculator to guide decision making for the calculator group. Surveys were completed by patients following consultations to evaluate satisfaction and perceived impact of the risk/benefit calculator on operative selection.

RESULTS

Between 2020 and 2022, 61 patients were randomized to the calculator group and 68 patients to the control group. The percentage of patients whose procedure of choice changed following consultation was similar in the calculator versus control group (44.3% versus 41.2%; P = .723). However, calculator group patients were less likely to perceive surgeon counseling as very important for their decision making (43.3% versus 76.5%; P < .001). Eighty-five percent of calculator group patients rated the calculator as useful or very useful, and only 1.7% found it not very important. The reasons patients changed procedure choice were similar between the groups (P = .091); the most common cause was to improve their anticipated outcome (48.7% versus 54.8%).

CONCLUSIONS

While the risk/benefit calculator was perceived as a helpful tool by most patients, its use did not influence their procedure choice. However, the patient-reported usefulness and importance of the calculator during surgeon counseling suggest that the information provided has weight in patient decision making.

A comparison of laparoscopic and robotic ergonomic risk

INTRODUCTION

Work related injuries in minimally invasive surgery (MIS) are common because of the strains placed on the surgeon's or assistant's body. The objective of this study was to compare specific ergonomic risks among surgeons and surgical trainees performing robotic and laparoscopic procedures.

MATERIALS AND METHODS

Ergonomic data and discomfort questionnaires were recorded from surgeons and trainees (fellows/residents) for both robotic and laparoscopic procedures. Perceived discomfort questionnaires were recorded pre/postoperatively. Intraoperatively, biomechanical loads were captured using motion tracking sensors and electromyography (EMG) sensors. Perceived discomfort, body position and muscle activity were compared between robotic and laparoscopic procedures using a linear regression model.

RESULTS

Twenty surgeons and surgical trainees performed 29 robotic and 48 laparoscopic procedures. Postoperatively, increases in right finger numbness and right shoulder stiffness and surgeon irritability were noted after laparoscopy and increased back stiffness after robotic surgery. Further, the laparoscopic group saw increases in right hand/shoulder pain (OR 0.8; p = 0.032) and left hand/shoulder pain (0.22; p < 0.001) compared to robotic. Right deltoid and trapezius excessive muscle activity were significantly higher in laparoscopic operations compared to robotic. Demanding and static positioning was similar between the two groups except there was significantly more static neck position required for robotic operations.

CONCLUSION

Robotic assisted surgeries led to lower postoperative discomfort and muscle strain in both upper extremities, particularly dominant side of the surgeon, but increased static neck positioning with subjective back stiffness compared with laparoscopy. These recognized ergonomic differences between the two platforms can be used to raise surgeon awareness of their intraoperative posture and to develop targeted physical and occupational therapy interventions to decrease surgeon WMSDs and increase surgeon longevity.

Early postoperative weight loss predicts nadir weight and weight regain after laparoscopic sleeve gastrectomy and Roux-en-Y gastric bypass

BACKGROUND

Weight regain (WR) post bariatric surgery affects almost 20% of patients. It has been theorized that a complex interplay between physiologic adaptations and epigenetic mechanisms promotes WR in obesity, however, reliable predictors have not been identified. Our study examines the relationship between early postoperative weight loss (WL), nadir weight (NW), and WR following laparoscopic Roux-en-Y gastric bypass (LRYGB) and sleeve gastrectomy (LSG).

METHODS

A retrospective review of prospectively collected data was conducted for LRYGB or LSG patients from 2012 to 2016. Demographics, preoperative BMI, procedure type, and postoperative weight at 6, 12, 24, 36, and 48 months were recorded. WR was defined as > 20% increase from NW. Univariate and multivariate linear and logistic regression models were used to determine the association between early postoperative WL with NW and WR at 4 years.

RESULTS

Thousand twenty-six adults were included (76.8% female, mean age 44.9 ± 11.9 years, preoperative BMI 46.1 ± 8); 74.6% had LRYGB and 25.3% had LSG. Multivariable linear regression models showed that greater WL was associated with lower NW at 6 months (Coef - 2.16; 95% CI - 2.51, - 1.81), 1 year (Coef - 2.33; 95% CI - 2.58, - 2.08), 2 years (Coef - 2.04; 95% CI - 2.25, - 1.83), 3 years (Coef - 1.95; 95% CI - 2.14, - 1.76), and 4 years (Coef - 1.89; 95% CI - 2.10, - 1.68), p ≤ 0.001. WR was independently associated with increased WL between 6 months and 1 year (Coef 1.59; 95% CI 1.05,2.14; p ≤ 0.001) and at 1 year (Coef 1.24; 95% CI 0.84,1.63;p ≤ 0.001) postoperatively. The multivariable logistic regression model showed significantly increased risk of WR at 4 years for patients with greater WL at 6 months (OR 1.20, 95% CI 1.08,1.33; p = 0.001) and 1 year (OR 1.14; 95% CI 1.06,1.23; p ≤ 0.001).

CONCLUSION

Our findings demonstrate that higher WL at 6 and 12 months post bariatric surgery may be risk factors for WR at 4 years. Surgeons may need to follow patients with high early weight loss more closely and provide additional treatment options to maximize their long-term success.

Assessment of Chief Resident Practice Readiness in a Porcine Lab: A 4-Year Experience

OBJECTIVE

General surgery training prepares residents for the autonomous practice of surgery; however, assessment for readiness for independent practice presents several challenges. The simulation lab offers a safe and standardized environment for assessing the technical skills of a resident in the absence of numerous confounders of the real operating room. We describe our experience with evaluation and remediation of chief resident assessments in a porcine simulation lab.

DESIGN

Operative skill assessment of surgical residents was conducted using anesthetized porcine models. Procedure's representative of basic and complex operative skill was chosen for the assessment. Faculty assessed the residents using a checklist for the completion of all critical operative steps. A "failing" score or "critical fail" on a given procedure determined mandatory remediation. For remediation, faculty provided immediate post-procedure feedback on all errors, and residents were offered supervised practice. Residents were then retested to demonstrate competency.

SETTING

Large animal research center at Indiana University School of Medicine, Indianapolis, IN PARTICIPANTS: From 2017 to 2020, thirty-seven PGY5 residents participated in the porcine lab over a 4-year period. These general surgery residents were assessed at the beginning of their chief year.

RESULTS

There were a total of 6 residents that failed 1 or more procedures. There were no failures in the cholecystectomy, 3 failures for Nissen, 4 failures for Hand sewn anastomosis, and 1 failure for stapled anastomosis. Two residents failed 2 procedures. All residents received remediation with a faculty member and were subsequently able to perform the procedure competently.

CONCLUSIONS

A formal simulation-based assessment of procedural competence can identify technical performance deficiencies even at the chief resident level. Combined with a formal remediation program, such deficiencies can be addressed well in advance of residency graduation. Determining the relationship of such simulation-based assessments with operative performance is currently underway.

Social support provided to bariatric surgery patients through a facebook group may improve weight loss outcomes

BACKGROUND

Patients' social support has been shown to impact outcomes after bariatric surgery. We have previously shown that a Facebook group administered by bariatric providers offers an effective alternative social support mechanism to in-person support groups, with higher patient participation. Our aim was to determine whether participation in this Facebook group could improve patient outcomes after bariatric surgery.

METHODS

After institutional board approval, our center's Facebook group members were electronically surveyed about their perceived value of group participation and their Facebook group usage frequency. We also collected patient age, sex, insurance, preoperative weight, type of procedure, hospital stay, postoperative complications, and weight loss from the electronic medical record. To assess the impact of Facebook group participation we compared patient outcomes between "frequent users" (those checking the Facebook group's activity at least once a week), "infrequent users", and a control group of all patients operated on during the year prior to the establishment of the Facebook group. The groups were compared after adjusting for potential confounding factors.

RESULTS

250 out of 1400 Facebook group patients responded to the survey (18%). 195 patients were frequent and 55 were infrequent users. Outcomes were compared with 211 control patients. The groups did not differ in their baseline characteristics apart from their sex. Frequent users had a higher weight loss compared to the other groups up to 2 years postoperatively but no difference in the overall complications. On multivariable analysis, frequency of Facebook use was the main factor associated with 0.5-, 1-, and 2-year weight loss.

CONCLUSION

Frequent participation in a Facebook support group after bariatric surgery was associated with improved early weight loss outcomes. If additional longer-term studies confirm our findings, offering similar social support groups may become essential after bariatric surgery, especially during times of social isolation when in-person social support meetings may not be feasible.

Postoperative Dysphagia Following Esophagogastric Fundoplication: Does the Timing to First Dilation Matter?

BACKGROUND

Postoperative dysphagia after anti-reflux surgery typically resolves in a few weeks. However, even after the initial swelling has resolved at 6 weeks, dysphagia can persist in 30% of patients necessitating esophageal dilation. The purpose of this study was to investigate the effect of esophageal dilation on postoperative dysphagia, the recurrence of reflux symptoms, and the efficacy of pneumatic dilations on postoperative dysphagia.

METHODS

A prospectively collected database was reviewed for patients who underwent partial/complete fundoplication with/without paraesophageal hernia repair between 2006 and 2014. Patient age, sex, BMI, DeMeester score, procedure type, procedure duration, length of stay, postoperative dysphagia, time to first pneumatic dilation, number of dilations, and the need for reoperations were collected.

RESULTS

The study included 902 consecutive patients, 71.3% females, with a mean age of 57.8 ± 14.7 years. Postoperative dysphagia was noted in 26.3% of patients, of whom 89% had complete fundoplication (p < 0.01). Endoscopic dilation was performed in 93 patients (10.3%) with 59 (63.4%) demonstrating persistent dysphagia. Recurrent reflux symptoms occurred in 35 (37.6%) patients who underwent endoscopic dilation. Patients who underwent a dilation for symptoms of dysphagia were less likely to require a revisional surgery later than patients who had dysphagia but did not undergo a dilation before revisional surgery (17.2% vs 41.7%, respectively, p < 0.001) in the 4-year follow-up period. The duration of initial dilation from surgery was inversely related to the need for revisional surgery (p = 0.047), while more than one dilation was not associated with additive benefit.

CONCLUSION

One attempt at endoscopic dilation of the esophagogastric fundoplication may provide relief in patients with postoperative dysphagia and can be used as a predictive factor for the need of revision. However, there is an increased risk for recurrent reflux symptoms and revisional surgery may ultimately be indicated for control of symptoms.

Postoperative 4-Year Outcomes in Septuagenarians Following Bariatric Surgery

BACKGROUND

Bariatric surgery is the most effective treatment for obesity; however, its utilization in older patients remains low. There is a dearth of literature on long-term effectiveness and safety of bariatric surgery in septuagenarian patients. The aim of this study was to compare the short- and long-term outcomes of bariatric surgery in this population.

METHODS

Patients who underwent primary laparoscopic Roux-en-Y gastric bypass (LRYGB) or laparoscopic sleeve gastrectomy (LSG) at our institution between 2011 and 2015 were included. Patients were divided into two age groups: < 70 and ≥ 70 years. Outcomes included postoperative hospital length of stay (LOS), 30-day complications, up to 4-year complications, 90-day mortality, comorbidity resolution, and 4-year weight loss (BMI change-ΔΒΜΙ). The groups were also compared using multivariable analyses adjusting for potential confounders (gender, preoperative BMI, and type of procedure).

RESULTS

Twenty-nine septuagenarians who underwent 21 LRYGB (72.4%) and 8 LSG (27.6%) were compared to 1016 patients aged < 70 years operated on during the same time period. Additionally, following the multivariable analyses, the septuagenarians had higher LOS (3 vs 2.3 days, p = 0.01), 4-year complications (38% vs 23%, p = 0.012), and less comorbidities' resolution but similar 4-year ΔBMI (- 8.6 vs - 10, p = 0.421), and 30-day complications (10% vs 6%, p = 0.316).

CONCLUSION

Bariatric surgery in carefully selected septuagenarians can be accomplished with acceptable safety and comparable postoperative weight loss at 4 years. Surgeons may consider broadening their selection criteria to include this patient subgroup but may allow the patients to reap its benefits if offered earlier in life.

Continuous, integrated sensors for predicting fatigue during non-repetitive work: demonstration of technique in the operating room

Surface electromyography (sEMG) can monitor muscle activity and potentially predict fatigue in the workplace. However, objectively measuring fatigue is challenging in complex work with unpredictable work cycles where sEMG may be influenced by the dynamically changing posture demands. This study proposes a multi-modal approach integrating sEMG with motion sensors and demonstrates the approach in the live surgical work environment. Seventy-two exposures from twelve participants were collected, including self-reported musculoskeletal discomfort, sEMG, and postures. Posture sensors were used to identify time windows where the surgeon was static and in non-demanding positions, and mean power frequencies (MPF) were then calculated during those time windows. In 57 out of 72 exposures (80%), participants experienced an increase in musculoskeletal discomfort. Integrated (multi-modality) measurements showed better performance than single-modality (sEMG) measurements in detecting decreases in MPF, a predictor of fatigue. Based on self-reported musculoskeletal discomfort, sensor-based thresholds for identifying fatigue are proposed for the trapezius and deltoid muscle groups. Practitioner summary Work-related fatigue is one of the intermediate risk factors to musculoskeletal disorders. This article presents an objective integrated approach to identify musculoskeletal fatigue using wearable sensors. The presented approach could be implemented by ergonomists to identify musculoskeletal fatigue more accurately and in a variety of workplaces. Abbreviations: sEMG: surface electromyography; IMU: inertia measurement unit; MPF: mean power frequency; ACGIH: American Conference of Governmental Industrial Hygienists; SAGES: Society of American Gastrointestinal and Endoscopic Surgeons; LD: left deltoid; LT: left trapezius; RD: right deltoid; RT: right trapezius.

Thyroid cancer surgery during the coronavirus disease 2019 pandemic: perioperative management and oncological and anatomical considerations

The coronavirus disease 2019 (COVID-19) pandemic has changed many aspects of our everyday lives and medical practice, including oncology treatment; thyroid cancer surgery is not an exception. The reported number of fine-needle aspirations performed during the first semester of 2020 was significantly reduced. Poorly differentiated, medullary and anaplastic thyroid tumors are considered important indications for immediate surgical intervention. By contrast, most well-differentiated carcinomas present slow growth, and thus surgery can be deferred for a short period of time during which patients are under active surveillance. Thyroid surgeries have decreased during the COVID-19 pandemic. Furthermore, prior to any intervention, negative COVID-19 status - with the use of a nasopharyngeal swab and reverse transcription PCR assay as the gold standard and chest CT scan as a complementary modality in some cases - must be confirmed to achieve a COVID-free pathway. Thorough preoperative assessment regarding both oncological and anatomical aspects should be performed to identify optimal timing for safe management.

Does the advanced training in laparoscopic suturing enhance laparoscopic suturing skill beyond fundamentals of laparoscopic surgery?

BACKGROUND

Laparoscopic suturing is associated with a steep learning curve. Hence, many general surgery graduate residents entering fellowship have reportedly not been able to proficiently suture laparoscopically despite achieving Fundamentals of Laparoscopic Surgery certification. To address this deficiency, the Advanced Training in Laparoscopic Suturing curriculum was developed. This study aimed to compare the effectiveness of the Advanced Training in Laparoscopic Suturing curriculum in improving laparoscopic suturing skills compared with Fundamentals of Laparoscopic Surgery training.

METHODS

Novices were enrolled in a prospective randomized controlled study. All novices followed proficiency-based training on Fundamentals of Laparoscopic Surgery peg-transfer and intracorporeal suturing. Students were then stratified based on their peg-transfer performance and randomized into an Advanced Training in Laparoscopic Suturing or Fundamentals of Laparoscopic Surgery group. The Advanced Training in Laparoscopic Suturing group trained on 3 of the 6 Advanced Training in Laparoscopic Suturing tasks (needle handling, offset forehand suturing, confined space suturing), while the Fundamentals of Laparoscopic Surgery group was assigned more stringent suturing performance goals. Each group trained for an additional 6 hours, after which the laparoscopic suturing performance of the 2 groups was compared on a Nissen fundoplication porcine model.

RESULTS

Thirty-nine medical students were enrolled in the study; 17 (11 males and 6 females) completed the study protocol (44%). Controlling for confounders including the student suturing performance at the end of stage-1 training, the Advanced Training in Laparoscopic Suturing group at the porcine model was significantly faster/safer (coefficient = 102.7, P = .037), and more skilled (coefficient = 19.1, P = .048) compared with the Fundamentals of Laparoscopic Surgery group.

CONCLUSION

Compared with Fundamentals of Laparoscopic Surgery training alone the Advanced Training in Laparoscopic Suturing curriculum further enhances the laparoscopic suturing skill of novices. These findings support incorporating Advanced Training in Laparoscopic Suturing into existing skills curricula.

Bariatric surgery outcomes: is age just a number?

INTRODUCTION

Obesity and its associated comorbidities represent a pervasive problem in the United States across all age groups. There are conflicting data regarding the effectiveness and postoperative recovery of bariatric surgery in elderly patients. The aim of this study was to compare outcomes of bariatric surgery across age groups.

MATERIALS AND METHODS

After obtaining institutional review board approval, patients with morbid obesity who underwent non-revisional laparoscopic Roux-en-Y gastric bypass (LRYGB) and sleeve gastrectomy (LSG) at our institution between 2011 and 2015 were included in this retrospective study. Patients were subdivided into five age groups: < 30, 30-39, 40-49, 50-59, and ≥ 60 years. Patient baseline demographics and comorbidities were collected. Postoperative outcomes including reinterventions/reoperations, 30-day-readmissions, 90-day-mortality, comorbidities' resolution, and change in BMI (ΔBMI) up to 4 years were recorded and compared. The groups were compared with ANOVA and chi-square tests and multivariable analyses.

RESULTS

LRYGB was performed in 74.7% of the 1026 study patients. Patients ≥ 60 years old demonstrated lower preoperative BMI than patients < 50 years (p < 0.001). Patients 50-59 years old had increased length of stay compared to 30-39 (p = 0.003) and a higher prevalence of all comorbidities was found in older patients (p < 0.001). There was no significant difference in 30-day-readmissions; 90-day-mortality; reoperations; and reinterventions among the study groups. The ΔBMI was higher in younger patients and comorbidity resolution was more likely in younger patients with the exception of obstructive sleep apnea.

CONCLUSION

Bariatric surgery can be accomplished safely across all age groups with satisfiable postoperative weight loss. However, older age had higher hospital stay and convalescence and lower comorbidity resolution compared to younger patients. Thus, bariatric surgery should be offered earlier in life to allow the patients to reap its benefits.

Chylous ascites in the setting of internal hernia: a reassuring sign

BACKGROUND

Chylous ascites is often reported in cases with lymphatic obstruction or after lymphatic injuries such as intraabdominal malignancies or lymphadenectomies. However, chylous ascites is also frequently encountered in operations for internal hernias. We sought to characterize the frequency and conditions when chylous ascites is encountered in general surgery patients.

METHODS

Data from patients who underwent operations for CPT codes related to open and laparoscopic abdominal and gastrointestinal surgery in our tertiary hospital from 2010 to 2019 were reviewed. Patients with the postoperative diagnosis of internal hernia were identified and categorized into three groups: Internal Hernia with chylous ascites, non-chylous ascites, and no ascites. Demographics, prior surgical history, CT findings, source of internal hernia, open or laparoscopic surgery, and preoperative labs were recorded and compared.

RESULTS

Fifty-six patients were found to have internal hernias and were included in our study. 80.3% were female and 86% had a previous Roux-en-Y gastric bypass procedure (RYGBP). Laparoscopy was the main approach for all groups. Ascites was present in 46% of the cases. Specifically, chylous ascites was observed in 27% of the total operations and was exclusively (100%) found in patients with gastric-bypass history. Furthermore, it was more commonly associated with Petersen's defect (p < 0.001), while the non-chylous fluid group was associated with herniation through the mesenteric defect (p < 0.001).

CONCLUSIONS

Chylous ascites is a common finding during internal hernia operations. Unlike other more morbid conditions, identification of chylous ascites during an internal hernia operation appears innocuous. However, in the context of a patient with a history of RYGBP, the presence of chylous fluid signifies the associated small bowel obstruction is likely related to an internal hernia through a patent Petersen's defect.

High-risk bariatric candidates: does red-flagging predict the post-operative course?

BACKGROUND

Standards for preoperative bariatric patient selection include a thorough psychological evaluation. Using patients "red-flagged" during preoperative evaluations, this study aims to identify trends in long-term follow-up and complications to further optimize bariatric patient selection.

METHODS

A multidisciplinary team held a case review conference (CRC) to discuss red-flagged patients. A retrospective chart review compared CRC patients to control patients who underwent bariatric surgery in the same interval. Patients under 18 years old, undergoing revisional bariatric surgery, or getting band placement were excluded. High-risk characteristics causing CRC inclusion, preoperative demographics, percent follow-up and other postoperative outcomes were collected up to 5 years postoperatively. If univariate analysis revealed a significant difference between cohorts, multivariable analysis was performed.

RESULTS

Two hundred and fifty three patients were red-flagged from 2012 to 2013, of which 79 underwent surgery. After excluding 21 revisions, 3 non-adult patients, and 6 band patients, 55 red-flagged patients were analyzed in addition to 273 control patients. Patient age, sex, initial BMI, ASA, and co-morbidities were similar between groups, though flagged patients underwent RYGB more frequently than control patients. Notably, percent excess BMI loss and percent follow-up (6 months-5 years) were similar. In multivariable analysis, minor complications were more common in flagged patients; and marginal ulcers, endoscopy, and dilation for stenosis were more common in flagged versus control patients who underwent RYGB. Perforation, reoperation, revision, incisional hernia, and internal hernia were statistically similar in both groups, though reoperation was significantly more common in patients with multiple reasons to be flagged compared to controls.

CONCLUSION

Bariatric patients deemed high risk for various psychosocial issues have similar follow-up, BMI loss, and major complications compared to controls. High-risk RYGB patients have greater minor complications, warranting additional counseling of high-risk patients.

Stress and resident interdisciplinary team performance: Results of a pilot trauma simulation program

BACKGROUND

Excessive stress negatively impacts surgical residents' technical performance. The effect of stress on trainee nontechnical skills, however, is less well studied. Given that nontechnical skills are known to impact clinical performance, the purpose of this study was to assess the relationship between residents' perceived stress and nontechnical skills during multidisciplinary trauma simulations.

METHODS

First-year surgery and emergency medicine residents voluntarily participated in this study. Residents participated in 3 trauma simulations across 2 training sessions in randomly assigned teams. Each team's nontechnical skills were evaluated by faculty using the Trauma Nontechnical Skills scale. The Trauma Nontechnical Skills scale consists of 5 items: leadership, cooperation, communication, assessment, and situation awareness/coping with stress. After each scenario, residents completed the 6-item version of the State-Trait Anxiety Inventory and the Surgery Task Load Index to detail their perceived stress and workload during scenarios. Linear regressions were run to assess relationships between stress, workload, and nontechnical skills.

RESULTS

Twenty-five residents participated in the first simulation day, and 24 residents participated in the second simulation day. Results from regressions revealed that heightened stress and workload predicted significantly lower nontechnical skills performance during trauma scenarios. In regard to specific aspects of nontechnical skills, residents' heightened stress and workload predicted statistically significant lower situation awareness and decision-making during trauma scenarios.

CONCLUSION

Residents' perceived stress and workload significantly impaired their nontechnical skills during trauma simulations. This finding highlights the need to offer stress management and performance-optimizing mental skills training to trainees to lower their stress and optimize nontechnical skills performance during challenging situations.

Multidisciplinary simulation-based trauma team training with an emphasis on crisis resource management improves residents' non-technical skills

BACKGROUND

Non-technical skills impact trauma resuscitation time. Crisis resource management teaches non-technical skills required for effective teamwork in a crisis. We developed a simulation-based multidisciplinary trauma team training, with an emphasis on crisis resource management and a goal of improving residents' non-technical skills.

METHODS

Twenty-five post-graduate year-1 general surgery and emergency medicine residents were divided into multidisciplinary teams with embedded nurse participants. Teams underwent 3 trauma resuscitation scenarios followed by a crisis resource management debrief. Additionally, a Just-In-Time crisis resource management didactic was delivered before 1 scenario. Teams' non-technical skills in each scenario were assessed by expert raters using non-technical skills scale for trauma and scenario scores before and after the Just-In-Time didactic were compared. Multiple linear-regression calculating the impact of clinical scenario, case order, and timing relative to the Just-In-Time didactic on a teams' non-technical skills scale for trauma score was performed.

RESULTS

Seventy-four team T-NOTECHS ratings were completed. T-NOTECHS total score was significantly higher on the third training case regardless of clinical scenario or timing relative to the Just-In-Time didactic (pre = 15.58 vs post = 18.11, P = .117). Teams scored an average of 15.44 on the first scenario of the day, 16.63 on the second, and 19.04 on the last (P < .001).

CONCLUSION

Crisis resource management-focused multidisciplinary team training significantly improves residents' non-technical skills in the simulated environment. Case repetition followed by crisis resource management focused debriefings outweighed the effect of a single Just-In-Time crisis resource management didactic.

Do Mandated Weight Loss Goals Prior to Bariatric Surgery Improve Postoperative Outcomes?

BACKGROUND

Most patients pursuing bariatric surgery undergo mandated preoperative weight management programs. The purpose of this study was to assess whether preoperative mandated weight loss goals lead to improved perioperative morbidity, postoperative weight loss, and resolution of comorbidities.

METHODS

Data from patients who underwent primary laparoscopic Roux-en-Y gastric bypass (LRYGB), and laparoscopic sleeve gastrectomy (LSG) between October 2012 and October of 2015 was reviewed. Patients were divided in two groups: those with BMI of 35-45 were not required to achieve a weight loss goal prior to surgery (no-WLG group) while those with BMI > 45 were given a weight loss goal proportionate to their weight (WLG group). Body mass index (BMI), history of diabetes mellitus type-II (DM-II), hypertension (HTN), hyperlipidemia (HLD), and obstructive sleep apnea (OSA) were recorded at baseline and 4 years postoperatively. Length of hospital stay (LOS) and reinterventions were considered proxies for postoperative morbidity.

RESULTS

A total of 776 patients, 81.4% LRYGB, were included in the study (age 45.1 ± 11.9). There was no difference in %ΔBMI, DM-II, HDL, HTN, LOS, or reinterventions among the two groups at 4 years postoperatively in both LRNY and LSG patients. This lack of difference persisted even when patients with similar BMI (43-45 vs 45.01-47) were compared.

CONCLUSION

WLG group did not have decreased perioperative morbidity, nor improved weight loss and comorbidity resolution 4 years after surgery. While these findings should also be confirmed by multicenter trials, they question the value of mandated WLG prior to bariatric surgery as they seem ineffective and may limit patient access to surgery.

Economic analysis of open versus laparoscopic versus robotic hepatectomy: a systematic review and meta-analysis

BACKGROUND

Following the publication of reports from landmark international consensuses (Louisville 2008 and Morioka 2014), minimally invasive hepatectomy became widely accepted as a legitimate alternative to open surgery. We aimed to compare the operative, hospitalization, and total economic costs of open (OLR) vs. laparoscopic (LLR) vs. robotic liver resection (RLR).

METHODS

We performed a systematic literature review (end-of-search date: July 3, 2020) according to the PRISMA statement. Random-effects meta-analyses were conducted. Quality assessment was performed with the Cochrane Risk of Bias tool for randomized controlled trials, and the Newcastle-Ottawa Scale for non-randomized studies.

RESULTS

Thirty-eight studies reporting on 3847 patients (1783 OLR; 1674 LLR; 390 RLR) were included. The operative costs of LLR were significantly higher than those of OLR, while subgroup analysis also showed higher operative costs in the LLR group for major hepatectomy, but no statistically significant difference for minor hepatectomy. Hospitalization costs were significantly lower in the LLR group, with subgroup analyses indicating lower costs for LLR in both major and minor hepatectomy series. No statistically significant difference was observed regarding total costs between LLR and OLR both overall and on subgroup analyses in either major or minor hepatectomy series. Meta-analyses showed higher operative, hospitalization, and total costs for RLR vs. LLR, but no statistically significant difference regarding total costs for RLR vs. OLR.

CONCLUSION

LLR's higher operative costs are offset by lower hospitalization costs compared to OLR leading to no statistically significant difference in total costs, while RLR appears to be a more expensive alternative approach.

Can a brief assessment of social support predict outcomes after bariatric surgery?

Social support is important to optimize bariatric surgery outcomes, but limited tools exist for brief and effective assessment preoperatively. The aims of the study were to determine the extent to which two ratings of social support can predict bariatric surgery outcomes, and to examine any associations between these two methods.In this retrospective study, patients were included for whom the Cleveland clinic behavioral rating system (CCBRS) and Flanagan quality of life scale (FQoLS) scores were obtained as part of their preoperative psychosocial evaluation. They were followed up for 6 to 24 months after bariatric surgery. Linear and logistic regressions were performed with patients' CCBRS and FQoLS scores as independent variables, and percent excess weight loss (%EWL), length of stay (LOS), complications, readmissions and loss to follow-up as dependent variables. The prediction of CCBRS ratings from FQoLS social support items was also evaluated. A total of 415 patients were included in the analysis. There were significant associations between the CCBRS and three of the four relevant FQoLS self-ratings. As CCBRS and FQoLS scores increased, complications decreased significantly. The CCBRS alone additionally predicted decreased length of hospital stay and approached significance for predicting decreased readmission rates. There were no associations between %EWL and behavior ratings. The degree of patients' social support is associated with important bariatric surgery outcomes. It is possible to obtain this valuable information via the administration of brief assessments prior to bariatric surgery.

Surgeon stress negatively affects their non-technical skills in the operating room

BACKGROUND

Poor surgeons' non-technical skills (NTS) and excessive stress and workload are known contributors to surgical errors. Our aim was to examine the relationship between surgeons' stress and workload, and their observed NTS intraoperatively.

METHODS

Surgeon's NTS were rated in the operating room (OR) by trained observers. Surgeon stress, workload, familiarity with the OR team, prior experience, and case difficulty were captured. Relationships between variables were assessed.

RESULTS

Fifteen surgeons participated in our study. Agreement among raters was high for NTS observations (ICC range = 0.56-0.96). Stress was negatively correlated with situation awareness, and workload was negatively correlated with decision making. Less familiarity among the team was correlated with higher stress.

CONCLUSIONS

Surgeons' stress and workload negatively affected their NTS in the OR. Further, unfamiliarity with the surgical team contributed to surgeon's stress. Methods to reduce surgeons' stress and workload such as mental skills training should be considered.

Percutaneous laser ablation of cervical metastatic lymph nodes in papillary thyroid carcinoma: clinical efficacy and anatomical considerations

Background: Papillary thyroid carcinoma is the most common type of thyroid cancer; despite its generally indolent course, patients often develop local post-operative recurrences. Re-operation, however, holds a high complication rate, while at the same time, not all patients benefit from radioiodine ablation. This systematic review investigates the application of laser ablation therapy (LAT) for cervical lymph node metastases as an additional treatment modality.Methods: This systematic review was conducted in accordance with the PRISMA Statement. Medline electronic database and Cochrane Library were searched for eligible articles.Results: Five studies were included in the systematic review. All studies included patients with metastatic lymph nodes from papillary thyroid carcinoma, that were unsuitable for further radioiodine or surgical treatment. Patients were treated with two different LAT devices. Regardless of the utilized assessment modalities, all researchers reported significant outcomes on local disease control. No permanent complications were observed.Conclusions: LAT is relatively safe and effective for the treatment of cervical metastatic lymph nodes in patients with papillary thyroid carcinoma.

How are bariatric patients coping during the coronavirus disease 2019 (COVID-19) pandemic? Analysis of factors known to cause weight regain among postoperative bariatric patients

Background

The global coronavirus disease 2019 (COVID-19) pandemic is wreaking havoc on society. Bariatric patients are more prone to severe infection due to their high body mass index (BMI) and are more vulnerable to the effects of isolation, such as depression or disruption of their health habits.

Objectives

To quantify the impact of self-quarantine on bariatric patients and self-quarantine’s relationship with weight gain.

Setting

Academic hospital, United States.

Methods

A 30-item survey examining several known contributors to weight regain was distributed among the postoperative bariatric patients of our clinic. Changes in eating habits, exercise, depression, social support, loneliness, and anxiety were studied, among others.

Results

A total of 208 patients completed the survey (29.3% response rate). A large percentage of patients reported increases in their depression (44.2%), loneliness (36.2%), nervousness (54.7%), snacking (62.6%), loss of control when eating (48.2%), and binge eating (19.5%) and decreases in their social support (23.2%), healthy food eating (45.5%), and activity (55.2%). Difficulty in accessing vitamins was reported by 13%. Patients more than 18 months out of surgery regained more than 2 kg during an average of 47 days. Risk factors for weight regain were found to be loss of control when eating, increases in snacking and binge eating, reduced consumption of healthy food, and reduced physical activity.

Conclusion

Bariatric patients are negatively affected by the COVID-19 pandemic and subsequent social isolation on many levels. This patient population is vulnerable to crisis situations; thus, additional intervention is needed to address behaviors that lead to weight regain.

The Potential Role of Carbon Nanoparticles in Lymph Node Tracing, Recurrent Laryngeal Nerve Identification and Parathyroid Preservation During Thyroid Surgery: A Systematic Review

BACKGROUND/OBJECTIVE

Carbon nanoparticles (CNs) are a novel injected suspension used during thyroidectomy in order to black stain the thyroid gland and the lymph nodes while maintaining the anatomic color of the parathyroid glands and the laryngeal nerves. The aim of this systematic review is to investigate the benefits of carbon nanoparticles in thyroid surgical procedures and examine their role in lymph node tracing, parathyroid preservation, and recurrent laryngeal nerve protection.

METHODS

A systematic review of the literature in the PubMed/Medline database was performed. Articles reporting randomized clinical trials, prospective, and retrospective studies that compared the use of carbon nanoparticles in one group of patients with a control-blank group were included. The article was reported in accordance with PRISMA guidelines (CRD42021243015).

RESULTS

The search strategy retrieved 22 studies of the literature. Fourteen studies calculated a greater number of lymph nodes detected/dissected in the central neck zone to the patients using CN solution and 1 article noted a higher rate of lymph nodes resected in the lateral neck zone in the same group of patients. A significant increase in the number of metastatic lymph nodes retrieved in the CN group was found in 7 studies. Twenty-one studies suggested that the use of CNs for the protection of the parathyroid glands was beneficial. Transient hypoparathyroidism and transient hypocalcemia were presented with a significantly lower incidence in the CN group in 13 and in 8 studies, respectively.

CONCLUSION

Carbon nanoparticles may improve both central and lateral neck dissection and enhance parathyroid gland identification and preservation.

High Rates of Nicotine Use Relapse and Ulcer Development Following Roux-en-Y Gastric Bypass

PURPOSE

Given that smoking is known to contribute to gastrojejunal anastomotic (GJA) ulcers, cessation is recommended prior to laparoscopic Roux-en-Y gastric bypass (LRYGB). However, smoking relapse rates and the exact ulcer risk remain unknown. This study aimed to define smoking relapse, risk of GJA ulceration, and complications after LRYGB.

MATERIALS AND METHODS

We performed a retrospective cohort study of patients who underwent primary LRYGB during 2011-2015. Initially, three patient categories were identified: lifetime non-smokers, patients who were smoking during the initial visit at the bariatric clinic or within the prior year (recent smokers), and patients who had ceased smoking more than a year prior to their initial clinic visit (former smokers). Smoking relapse, GJA ulcer occurrences, reinterventions, and reoperations were recorded and compared.

RESULTS

A total of 766 patients were included in the analysis. After surgery, 53 (64.6%) recent smokers had resumed smoking. Out of these relapsed smokers, 51% developed GJA ulcers compared with 14.8% in non-relapsed recent smokers, 16.1% in former smokers, and 6% in lifetime nonsmokers (p < 0.001). Furthermore, relapsed smokers required more frequently endoscopic reinterventions (60.4%) compared with non-relapsed smokers (20.8%, p < 0.001), former smokers (20.7%, p < 0.001), and lifetime non-smokers (15.4%, p < 0.001). Additionally, relapsed smokers required a reoperation (18.9%) more often than non-relapsed recent smokers (5.7%, p < 0.001) and lifetime non-smokers (1.3%, p < 0.001).

CONCLUSION

Smokers relapse frequently after LRYGB, and the majority experience GJA complications. They should be counseled about this risk preoperatively and directed towards less ulcerogenic procedures when possible. Alternatively, longer periods of preoperative smoking abstinence might be needed.

How resilient is your team? Exploring healthcare providers' well-being during the COVID-19 pandemic

Background

The global COVID-19 pandemic has placed tremendous physical and mental strain on the US healthcare system. Studies examining the effects of outbreaks have demonstrated both an increased prevalence and long-term development of Post-Traumatic Stress Disorder (PTSD) symptoms in healthcare providers. We sought to assess the impact of the COVID-19 pandemic on the psychological well-being of medical providers, medical trainees, and administrators at a large academic center to identify stressors and moderators to guide future mental health and hospital-system interventions.

Methods

A 42-item survey examining specific stressors, grit, and resilience was widely distributed to physicians, residents, fellows, and administrators a large academic institution for departmental distribution. Survey results were analyzed using descriptive statistics, ANOVA, and multivariate linear regressions. A p-value <0.05 was considered statistically significant.

Results

A total of 785 participants completed the survey. The majority of respondents rated their stress to be significantly increased during the pandemic. Respondents’ fear of transmitting the virus to their family members was a significant stressor. Higher resilience was associated with lower stress, anxiety, fatigue, and sleep disturbances. Overall, respondents felt supported by their departments and institution and felt contingency plans and personal protective equipment were adequate.

Conclusions

Healthcare workers have increased resilience in the face of heightened stress during a pandemic. Higher resilience and grit were protective factors in managing personal and system-level stressors at the peak of the COVID-19 pandemic in our institution. Implementing an intervention designed to enhance healthcare workers’ resilience in response to the COVID-19 pandemic is warranted.

Edward D. Churchill (1895-1972): An Innovative Surgeon, His Work, and His Contribution to Parathyroid Surgery

Edward Delos Churchill, one of the most notorious American surgeons of the 20th century, influenced countless surgeons and set medical practices that were used for decades. His scope of interests included surgery of the lungs, heart, thyroid, parathyroid glands, and military surgery among others. Churchill was one of the first to expand the field of the newly found parathyroid bodies by performing several experimental excisions of the glands and publishing numerous guidelines based on his innovative work. Additionally, he aspired to address many of the literature gaps that led him to conclusions that would benefit both the surgeons and patients throughout the country. Most importantly, his deep interest in endocrinology and his aggregate approach of medicine led him to discoveries that paved the way to the modern endocrine surgery practices.

Facebook groups provide effective social support to patients after bariatric surgery

BACKGROUND

Social support after bariatric surgery is considered essential. Unfortunately, patient participation in such groups tends to be limited threatening their effectiveness. Facebook groups may provide a social support option that attracts more participation. The aim of this study was to describe our experience with the administration of a Facebook social support group and evaluate its perceived value by our bariatric patients.

METHODS

After IRB approval, all Facebook group posts since its establishment in 2015 were reviewed and a thematic analysis was undertaken. Group members also completed a survey related to their Facebook group experience and its perceived value. Responses were collected using 5-point Likert scales. In addition, 30 members were phone interviewed using open-ended questions and their responses were analyzed.

RESULTS

Over 4 years, the group accumulated 12,507 posts, 104,053 comments, and 197,594 reactions. On average, members check the group page more than once per day. Ten common themes were identified in the submitted posts: questions, motivation related, education related, diet related, physical activity related, current status updates, sharing failures, social, random/humorous and other. Members reported that the group helped them do well with their procedure (3.3/5) particularly due to the motivation of others' successful stories (3.5/5) and made them feel understood (3.9/5) even though it offered limited help controlling their eating habits (2.7/5). The phone interviews suggested that the Facebook group offered constant support, was simple to use, and provided the sole social support for many patients. They most appreciated the motivational posts that kept them on track and the assistance/comments of clinical staff. In contrast, they disliked repeated questions/spam and negative stories shared by some members.

CONCLUSIONS

Facebook groups can provide effective social support to patients after bariatric surgery. Peers educate, answer questions, and motivate patients by sharing their positive experiences. Whether this online connectedness also positively impacts patient outcomes requires further study.

Coexistence of Constitutional Mismatch Repair Deficiency syndrome and Lynch syndrome in a family of seven : MSH6 mutation and childhood colorectal cancer - a case series

PURPOSE

To present a case series of two fraternal twin girls who passed away from brain and colorectal cancers attributed to Constitutional Mismatch Repair Deficiency syndrome (CMMRD). A review of literature for CMMRD-related pediatric malignancies is also presented.

METHODS

The two girls were diagnosed with cancer at the age of 11 and 13 respectively. The early onset of multiple malignancies in the family raised clinical suspicion for a potential genetic mutation. The presence of café-au-lait spots at clinical examination led to further investigations for neurofibromatosis.

RESULTS

Neurofibromatosis type 1 testing was negative in both children. Genetic analysis turned out positive for biallelic MSH6 mutations in the two girls, leading to CMMRD syndrome diagnosis. Both parents and two out of three alive siblings were diagnosed with Lynch syndrome.

CONCLUSIONS

Colorectal cancer is a very rare finding in childhood and should raise suspicion for CMMRD syndrome and should be followed by regular screening.

Permanent pacemaker implantation in pediatric heart transplant recipients: A systematic review and evidence quality assessment

Bradyarrhythmias are a common complication following pediatric OHT and may require permanent pacemaker implantation (PPM). The purpose of this study was to investigate the incidence, predictors, and outcomes of children undergoing PPM implantation following OHT. A PRISMA-compliant systematic literature review was performed using the PubMed database and the Cochrane Library (end-of-search date: January 27, 2019). The Newcastle-Ottawa scale and the Joanna Briggs Institute tool were used to assess the quality of cohort studies and case reports, respectively. We analyzed data from a total of 11 studies recruiting 7198 pediatric patients who underwent heart transplant. PPM implantation was performed in 1.9% (n = 137/7,198; 95% CI: 1.6-2.2) of the patients. Most patients underwent dual-chamber pacing (46%, 95% CI: 32.6-59.7). Male-to-female ratio was 1.3:1. Mean patient age at the time of OHT was 10.1 ± 6.3. Overall, biatrial anastomosis was used in 62.2% (95% CI: 52.8-70.6) of the patients. The bicaval technique was performed in the remaining 37.8% (95% CI: 29.4-47.1). Sinus node dysfunction was the most frequent indication for PPM implantation (54.4%; 95% CI: 42.6-65.7) followed by AV block (45.6%; 95% CI: 34.3-57.3). The median time interval between OHT and PPM implantation ranged from 17 days to 12.5 years. All-cause mortality was 27.9% (95% CI: 18.6-39.6) during a median follow-up of 5 years. PPM implantation is rarely required after pediatric OHT. The most common indication for pacing is sinus node dysfunction, and patients undergoing biatrial anastomosis may be more likely to require PPM.

Post-thyroidectomy Hypocalcemia in Patients With History of Bariatric Operations: Current Evidence and Management Options

BACKGROUND/AIM

Both bariatric and thyroid surgeries promote calcium and vitamin D deficiency. The correlation, however, of hypocalcemia after thyroidectomy in patients with previous bariatric surgery has been poorly described. This review aimed to investigate the relationship between history of bariatric operations and post-thyroidectomy hypocalcemia, as well as suggested management options.

MATERIALS AND METHODS

MEDLINE and Cochrane databases were searched for relevant publications regarding post-thyroidectomy hypocalcemia in patients with previous bariatric surgery.

RESULTS

A total of 17 publications reporting on 126 patients met the inclusion criteria. These included 13 publications about Roux-en-Y gastric bypass (RYGB), 2 regarding biliopancreatic diversion (BPD), 1 about sleeve gastrectomy (SG) and 1 compared three bariatric procedures: SG, RYGB, laparoscopic adjustable gastric band (LAGB). Post-thyroidectomy hypocalcemia was found to be more prevalent in patients with previous RYGB and BPD, but not in previous LAGB and SG.

CONCLUSION

Patients with previous bariatric surgery are at high risk of post-thyroidectomy hypocalcemia that sometimes leads to higher length of hospital stay and demands more invasive solutions. There is a need, however, for additional studies and further investigation in order to reach more conclusive results.

Successful treatment of rhinoorbital mucormycosis due to Rhizopus arrhizus with liposomal amphotericin B, posaconazole and surgical debridement in a child with neuroblastoma

Mucormycosis is a rare but potentially mortal opportunistic infection caused by Mucorales. We present a case of rhinoorbital mucormycosis in an 11-year old male with neuroblastoma successfully treated with aggressive surgical debridement and antifungal combination of liposomal amphotericin B and posaconazole. Our patient developed signs of paranasal sinus infection and culture of fine needle biopsy grew Rhizopus arrhizus. Prompt treatment and drastic surgical resection led to complete clinical and radiological recovery without evidence of mucormycosis relapse.

Metastatic Carcinomas of the Adrenal Glands: From Diagnosis to Treatment

BACKGROUND/AIM

Adrenal glands are one of the most common sites of cancer metastasis. The treatment options include either surgery or chemotherapy and/or radiotherapy while certain diagnosis is made via percutaneous biopsy or fine needle aspiration (FNA), guided by CT scan. This review aimed to present the current practice regarding the diagnosis and treatment of adrenal cancer metastasis.

MATERIALS AND METHODS

A PRISMA-compliant systematic search of the PubMed, Cochrane, EMBASE, AMED, CINAHL, WoS, BIOSIS, LILACS, ASSIA, SCEH, SCIRUS databases, and JIT medical feed sources was performed through November 5th, 2018.

RESULTS

A total of 87 original studies including 660 patients with adrenal metastasis were analyzed. Most preferred treatment was excision of the gland in 76.58% of the cases, while most of adrenal metastases were found at autopsy (43.88%) followed by computed tomography guided biopsy (33.09%).

CONCLUSION

Adrenalectomy following metastatic disease to the adrenals should be performed when the lesion is isolated in the gland and the site of primary cancer has or can be resected.

Histone Deacetylase Inhibitors and Anaplastic Thyroid Carcinoma

BACKGROUND/AIM

Anaplastic thyroid cancer (ATC) is one of the most aggressive human malignancies, remaining generally incurable. Histone deacetylase (HDAC) seems to play a role in regulating transcription of genes involved in ATC, making HDAC inhibitors (HDACI) promising anticancer drugs for ATC. The purpose of this review was to evaluate the role of HDACIs in ATC treatment and describe the latest trends of current research on this field.

MATERIALS AND METHODS

This literature review was performed using the MEDLINE database. The keywords/phrases were; thyroid cancer, anaplastic, HDAC, histone, deacetylase*, HDACI.

RESULTS

Compounds, such as SuberoylAnilide Hydroxamic Acid, valproic acid, sodium butyrate, butyrate, phenylbutyrate, trichostatin A, AB1-13, panobinostat or LBH589, belinostat, MS-275, depsipeptide, CUDC101, CUDC907, N-Hydroxy-7-(2-naphthylthio)-Hepanomide (HNHA), and PXD101 have shown promising antitumor effects against ATC.

CONCLUSION

HDACIs represent a promising therapy for ATC management, both as monotherapy and in combination with other anticancer drugs.

Does the sternum play a role in the aetiopathogenesis of adolescent idiopathic scoliosis? Preliminary data of a new theory

BACKGROUND

The role of the sternum, if any, in the aetiopathogenesis of adolescent idiopathic scoliosis (AIS) remains unexplored. We evaluated morphological features of the sternum for the first time in individuals with AIS.

METHODS

Medical records of a tertiary hospital were reviewed from 2010 to 2018 to identify adolescents with thoracic or thoracolumbar AIS. We included scoliotic patients between 14 and 18 years of age on radiologic evaluation without previous treatment for the disease. A complete history and 3D computed tomography (CT) scan were also prerequisites for study inclusion. We compared the shape and position of the sternum between adolescents with AIS and age-matched individuals as control. The control group was recruited with a random selection from patients attending hospital for extraskeletal reasons during the same period. Using CT, we evaluated the part of the sternum found in the right front quadrant of the axial plane at the level of the middle of the manubrium of the sternum and apical vertebra.  We also provided an evidence-based theory of the sternum involvement in AIS aetiopathogenesis.

RESULTS

Twelve scoliotic patients with mean age 16.6 and mean Cobb angle 39.7 degrees were included in the study. No difference was found between groups at the level of the manubrium of the sternum (p =0.486). At the level of the apical vertebra, there was a significant difference of the part of sternum found in the right front quadrant of the axial plane between groups (95 % vs 56 %, p <0.001).

CONCLUSIONS

These are preliminary data demonstrating for the first-time morphological differences of the sternum, between AIS and age-matched non-scoliotic individuals. The sternum of adolescents with AIS was more inclined than non-scoliotic controls that could raise the hypothesis of sternum involvement in AIS pathogenesis. HIPPOKRATIA 2018, 22(4): 173-177.