Surgery Commons^™

Metastatic Colon Cancer And Single Agent Neoadjuvant Immunotherapy: A Single Institution Experience, Jacob Applegarth, Scarlett B. Hao, Claire Bova, Harry Wasvary

Conference Presentation Abstracts

Pembrolizumab was granted accelerated FDA approval for the treatment of patients with metastatic MMR deficient solid tumors and has shown significant benefit in the treatment of metastatic colorectal cancer. Recently, the NICHE-2 trial demonstrated that neoadjuvant nivolumab plus ipilimumab led to a significant response in locally advanced MMR deficient colon cancer. This report is a single institution's experience regarding the treatment of metastatic colon cancer with neoadjuvant immunotherapy. Since 2022, our institution has treated two patients with neoadjuvant pembrolizumab for metastatic colon cancer and achieved complete clinical and pathologic responses with no residual evidence of malignancy.

Index Cost Comparison Of Laparoscopic Vs Robotic Surgery In Colon And Rectal Cancer Resection: A Retrospective Financial Investigation Of Surgical Methodology Innovation At A Single Institution, Ekene Ezeokoli, Roula Hilli, Harry J. Wasvary

Posters

Robotic assisted colorectal cancer resection (R-CR) has become increasingly commonplace in contrast to traditional laparoscopic cancer resection (L-CR). The aim of this study was to compare the total direct costs of R-CR to that of L-CR and to compare the groups with respect to costs related to LOS.

Improving Treatment For Infant Perianal Abscesses, Artem Dadamyan, Nathan Novotny, Ngan Nguyen

Posters

Perianal abscesses: • Tender masses located at the anal verge, typically in the 3 o’clock and 9 o’clock positions1

• Develop due to infection in abnormally deep crypts of Morgagni 1

• If left untreated, can extend into the ischioanal space or intersphincteric space since these areas are continuous with the perianal space.2

• Some may develop into fistula in ano, which can be difficult to treat3 Treatment:

• The standard has always been incision and drainage (I&D), but non-invasive management of Sitz baths is increasingly being used.

Safety And Utility Of Robotics In Pediatric Surgery: Implementation, Luke J. Man, Kristin Lemarbe, Nathan Novotny, Anthony Stallion, Begum Akay, Pavan Brahmamdam

Posters

• Minimally invasive laparoscopic surgery is considered standard of care for adult and pediatric patients .

• Robotic surgery (RS) for adult patients has been widely adopted due to superior ergonomics, visualization, depth perception, and access to deeper anatomical structures2,3.

• Historically, RS is associated with longer operative times, higher cost, and lacks haptic feedback1,2.

• RS has had inconsistent adoption in the pediatric surgery community2.

Impact Of Michigan Public Act 246 On Opioid Prescribing For Pediatric Surgical Patients, Madison Saunders, Pavan Brahmamdam

Posters

1. Opioid misuse is an epidemic in the U.S. affecting 3.1% of pediatric patients.2,3.

2. Most common way adolescence obtain access to opioids is by their own prescription or a family member. 3,4 3.

3. In December 2017, Michigan enacted Public Act 246 (P246) in an attempt to address rising opioid misuse.

4. P246 states that as of June 1, 2018, a prescriber of a controlled substance must discuss the risks of opioid usage minor and the minor’s parent or guardian and sign a consent form.

Does The Possibility Of No Surgery In Watch And Wait For Rectal Cancer Affect Patient Decision-Making?, Joanna F. Wasvary, Ga-Ram Han, Jacob A. Applegarth, Matthew A. Ziegler

Posters

INTRODUCTION & OBJECTIVE

Prior studies have established that the watch and wait protocol for rectal cancer is a reasonable approach in patients with excellent response to total neoadjuvant therapy (TNT). Current guidelines stipulate that patients eligible for this protocol have no residual tumor on re-staging imaging and endoscopy. Patients who have evidence of residual disease are referred for surgery. This study assessed all patients in our institution who underwent TNT for rectal cancer and the subsequent recommendations for treatment. Primary aim: assess patient compliance with surgeon recommendations for residual disease after TNT.

Secondary aim: assessment of oncologic outcomes and the …

Implementation Of An Opioid Free Pediatric Hernia Repair Protocol, Corey Shafer, Antonela Muca, Randy Hilleary, Kristin Lemarbe, Diane Studzinsk, Kaveh Aslani, Nathan Novotny, Pavan Brahmamdam, Begum Akay

Posters

Surgery most often provides children with their first exposure to opioids which may lead to misuse and overuse. Protocolizing pain management perioperatively can reduce opioid exposure in children while still providing adequate pain management.

Surgical Site Infection Bundle For Babies: Preliminary Data, Cullen Woodley, John Nida, Alexis Lonjin, Katelyn Ward, Diane Studzinski, Begum Akay

Posters

Surgical Site Infections (SSIs) are infections that occur in or around the area where a surgery was recently performed. They are estimated to account for 20% of all healthcare associated infection, and lead to an increase in morbidity and mortality. Perioperative care bundles show promise in reducing SSIs in adults but are not often used in neonatal surgery. Infections in babies after surgery are less common than adults but carry significant morbidity in a fragile patient.

Enhancing Reproductive Anatomy Education: A Comprehensive Approach Integrating Near-Peer And Reciprocal Peer Tutoring, Hope Hefferan, Emelie-Jo Scheffler, Erin Mueller, Varna Taranikanti

Posters

• Near-peer tutoring (NPT): Tutors are more advanced than tutees, typically offering support in understanding complex concepts.1

• Reciprocal peer tutoring (RPT): Students with similar levels of training alternate between tutor and tutee roles, facilitating collaborative learning.1

• Peer tutoring fosters professional development and improves long-term retention of complex medical concepts.3,4,5

• Reproductive anatomy is a challenging area for many medical students; Innovative peer tutoring methods may help improve understanding and retention of anatomical structures.

• We hypothesize that integrating NPT and RPT within the laboratory setting in the reproductive organ system course will enhance student motivation, self-efficacy, and long-term …

Impact Of Michigan Public Act 246 On Opioid Prescribing After Pediatric Surgery, Madison Saunders, Nathan Novotny, Anthony Stallion, Begum Akay, Pavan Brahmamdam, Ryan T. Davis

Conference Presentation Abstracts

Abstract: Background: In December 2017, Michigan enacted Public Act 246(P246) to address rising opioid misuse. P246 states that, as of June 1, 2018, a prescriber of a controlled substance must discuss the risks of opioid addiction, overdose, and the dangers of taking opioids with benzodiazepine, alcohol or any other nervous system depressant with the minor and the minor’s parent or guardian. This study aims to evaluate the impact of this legislation by comparing opioid morphine milligram equivalents (MME) prescribed to pediatric patients undergoing common general, urological, and ENT surgeries before and after June 1, 2018. Methods: A single-center, retrospective chart …

Eye Dissection Video Guide: An Innovative Approach To Anatomy Education Of The Orbit, Eye, And Intraocular Lens, Jack Dryden, Malli Barremkala

Posters

No abstract provided.

Intraoperative Code Status: Moving From Misinformation To Respect For Patient Autonomy, Jacob Applegarth, Jacob M. Morton, Nathan M. Novotny, Ngan Nguyen, Abram Brummett

Conference Presentation Abstracts

Introduction: Intraoperative code status represents a complicated topic for patients and providers. Prior studies demonstrated a lack of understanding of intraoperative code status, specifically do not resuscitate (DNR) orders. This misunderstanding appears common despite clear professional recommendations. A recent survey of surgery residents at our institution showed variability in understanding of intraoperative code status policy despite clear institutional guidelines. Few studies utilized simulated education for surgeons and surgical residents to navigate intraoperative DNR status. This project aims to create a simulation-based program for residents to navigate intraoperative DNR status ethically and to assess its impact on learning, practice patterns and …

Epigastric Hernia Containing Incarcerated Gallbladder, Katelyn R. Ward, Melanie Ermler, Kathryn M. Ziegler

Conference Presentation Abstracts

Introduction: Epigastric hernias represent 1.6–3.6% of all abdominal hernias, and usually contain preperitoneal fat and occasionally omentum or small bowel. Rarely, epigastric hernias may contain portions of other organs, such as colon or stomach. We report an unusual case of a patient whose incarcerated epigastric hernia contained her stone-filled gallbladder.over a million performed in the US, and over 20 million worldwide annually. We aim to study and compare interest trends in the US and the World for IHR techniques (open, laparoscopic, robotic) using GT. Methods: The following search topics were analyzed from January 2010 to August 2024 in ‘‘US’’ and …

Left Behind: A Rare Case Of True Gallbladder Sinistroposition And Surgical Implications, Daniel Finn, Jacob Applegarth, Jacob Mesiti, Mario Villalba

Conference Presentation Abstracts

Objectives: Encountering aberrant biliary anatomy is a known risk factor for inadvertent injury while performing biliary surgery. One described anatomic aberrancy, sinistroposition of the gallbladder (also known as ‘‘left sided gallbladder’’), is a rarely seen anatomic abnormality with an incidence of 0.2% to 1.1%. Given the infrequent encounters with this abnormality and its association with other anatomic anomalies, extreme care and caution should be exercised when performing a cholecystectomy in this patient population. Methods: We present the case of a 37-year-old male who presented with abdominal pain and was diagnosed with Tokyo Grade I acute calculous cholecystitis. An ultrasound of …

Examining The Influence Of The General Surgery Resident Colorectal Experience On The Pursuit Of Colorectal Surgery Fellowship, Adam D. Price, Bilal W. Nasim, Frances Hu, Desmond Layne, Robyn Richmond, Zachary E. Hier, Antonela Muca, Alexander R. Cortez, Jonathan Abelson, Jitesh A. Patel

Conference Presentation Abstracts

Purpose/Background: Colon and Rectal Surgery (CRS) is a highly sought after and competitive fellowship following General Surgery (GS) residency. However, it has not been studied as to how a resident’s CRS experience during residency impacts their career choice and pursuit of CRS. This study aims to identify individual and program factors associated with matriculation into CRS fellowship. Methods/Interventions: An analysis of case logs and demographic data from graduates of 19 ACGME-accredited GS residency programs between 2010-2020 was completed utilizing the US Resident OPerative Experience (ROPE) Consortium. The demographics and operative experience of residents who pursued CRS fellowship were compared to …

Insights From Targeted Fecal Metabolomic Analysis Reveal Altered Metabolic Pathways In Treatment-Naive Pediatric Subjects With Crohn's Disease, Nadia Ashrafi, Ali Yilmaz, Nicolette Monacelli, Rose E. Callahan, Ilyas Ustun, Nathan M. Novotny, J W. Rattray, Kypros Nicolaides, Stewart Graham

Conference Presentation Abstracts

Crohn’s disease (CD) is a heterogeneous and multifactorial inflammatory bowel disease with a significant global health impact. Genetic and lifestyle factors contribute to its etiology, emphasizing dysregulation of intestinal and dietary habits. Our study aimed to identify fecal metabolites from treatment-naïve, pediatric sufferers of CD, which allowed us to investigate the underlying biochemical perturbations associated with the disease, highlighting potential, translational targets. Using a Waters Acquity UPLC coupled with a Xevo-TQ-S mass spectrometer, we quantified >500 metabolites in fecal samples (n=72) of pediatric CD sufferers. We developed diagnostic tests capable of accurately discriminating between children with CD and healthy individuals …

A Comparison Of Post-Operative Pain Management Following Lumbar Laminectomy Fusions Utilizing Tlip Or Intra-Operative Local Anesthesia Block, Lauren Eberhardt, Philip Zakko, Karen Childers, Daniel Park

Conference Presentation Abstracts

Background/Introduction: Spinal fusion patients suffer significant acute post-operative pain, potentially leading to chronic pain. Opioids are commonly used for peri-operative pain management despite significant side effects. The thoracolumbar interfascial plane (TLIP) and erector spinae plane (ESP) block, alternative analgesic options with rare side effects, have proven to reduce pain and opioid consumption compared to standard non-block care. This study aimed to determine if a significant difference exists between block groups with multi- and single level laminectomy fusions in post-operative and discharge opioid consumption and length of stay. Materials/Methods: A retrospective review was performed via data query for lumbar laminectomy fusion …

Water-Soluble Contrast Challenge In The Management Of Pediatric Adhesive Small Bowel Obstruction: A Systematic Review, Max Fliegner, Daniel Finn, Spencer Wilhelm, Nathan Novotny, Anthony Stallion

Posters

Background: Adhesive small bowel obstruction (ASBO) is a serious complication of intra-abdominal surgery1 Water-soluble contrast (WSC) challenges have been used for medical management in the adult population2,3

Knowledge Gap: The therapeutic value of water-soluble contrast challenge in the pediatric population with ASBO is under-studied3,4

Research Question: Does administration of water-soluble contrast challenge reduce the need for surgery in pediatric patients with adhesive small bowel obstruction?

Incidence Of Symptomatic Upper Extremity Deep Vein Thrombosis In Respect To Subcutaneous Port Venous Access Site In Adults: A Retrospective Review, Catherine Bark, Alexsandra Biel, Corinne G. Bowditch, Paul Bove, Jimmi Mangla

Posters

Subcutaneous ports are an essential component of care in patients who require long-term central venous access and are commonly indicated for patients that require chemotherapy, infusions, intravenous (IV) antibiotics or frequent blood draws.1,2 The catheter of the subcutaneous port is commonly inserted through the subclavian vein and internal jugular vein via percutaneous insertion, or the external jugular vein and cephalic vein via surgical cutdown of the vein.

One of the most common port-related complications is venous thromboembolic (VTE) events with rates of symptomatic VTE as high as 13.6%.4,6–11 Patients with symptomatic upper extremity deep vein thrombosis (DVT) can present with …

A Retrospective Review Of Cosmetic Surgery Medical Tourism Complications During Covid-19 Pandemic, Rachel Blaisdell, Claire Mcnary, Catherine Barkach, Emanuela Peshel, Elizabeth Boudiab, Lauren Oliver, Samuel Mucci

Posters

• Cosmetic surgery medical tourism refers to traveling outside one’s geographic region for the purpose of a cosmetic procedure
• Benefits include reduced cost, shorter wait times, and newer “trendy” procedures
• Potential problems include a lack of continuity of care for patients, travel after surgery, and exposure to foreign pathogens

Heart Rate Metrics In Surgical Residents Performing An Educational Task Under Stress, Harkirat Jawanda, Kathryn K. Howard, Rose E. Callahan

Posters

Although a moderate amount of stress can be beneficial for performance, excess stress can lead to a decrease in fine motor skills, focus, decision-making skills, and communication.1-3.

• These effects can be especially detrimental in the operating room, where a stress-induced lapse in performance can lead to catastrophic outcomes for patients.
• One unique stressor experienced by surgical residents is observation by an attending surgeon during procedures, which has been shown to lead to an increase in stress related behaviors.4
• Mimicking the stress of the operating room in simulation environments presents the opportunity for residents to improve their ability to recognize and …

Comparing Plastic Surgeon Operative Time For Deep Inferior Epigastric Perforator (Diep) Flap Breast Reconstruction, Christopher J. Issa, Elizabeth M. Boudiab, Jeffrey Desano, Neil S. Sachanandani, Jeremy Powers, Kongkrit Chaiyasate

Posters

The deep inferior epigastric perforator (DIEP) flap has remained the gold standard for perforator flap reconstruction due to its consistent anatomy and low morbidity. Despite higher longterm patient satisfaction in autologous breast reconstruction compared to breast implants,1–3 implant-based reconstruction remains more common due to shorter operative time.

Several studies have examined the issue of optimizing efficiency of autologous breast reconstruction but were typically performed in the context of immediate reconstruction. In our institution and others, however, two-stage delayed reconstruction is the norm — a tissue expander is placed at the first stage for preservation of the skin envelope; after expansion …

Perioperative Antibiotic Use In Neonatal General Surgery: A Survey Of Apsa Membership, Samuel K. Osei, Ashley Williams, Diane Studzinski, Patrick Karabon, Begum Akay, Pavan Brahmamdam

Posters

• Guidelines for antibiotic prophylaxis for surgical site infection (SSI) are widely used for adult patients.
• There is limited data on prophylaxis in pediatrics, and there are no standardized guidelines for neonates.
• Perioperative antibiotic use in neonates based on the surgeon’s preference.

Emergency Department Treatment Of Elevated Blood Pressure In The Headache Patient, Lauren Eberhardt, Michelle Jankowski, Brett Todd

Posters

• Headache is an extremely common emergency department (ED) chief complaint, accounting for 1-3% of emergency department (ED) visits per year globally.
• Headache is often associated with elevated blood pressure and the most frequent clinical manifestation of hypertensive urgency, occurring in 35.9% of patients.5
• First line treatments used for acute headache management in the ED include intravenous fluid (IVF), anti-dopaminergic agents, aspirin, nonsteroidal antiinflammatory drugs (NSAIDs), and ketorolac.6
• Rescue analgesia is needed for pain management in 16% to 18.1% of patients.8,9.
• Rescue analgesia includes: additional doses of first line analgesia or initiation of a second line medication1,6,10,11 such as magnesium sulfate, …

Improving Diversity, Equity, And Inclusion In Pediatric Surgery: An Innovative Mentorship Program, Amelia E. Gavulic, Insiyah Campwala, Natalie Moreno, Grace M. Mallampalli, Yousef Ibrahim, Anthony Stallion, Sabina Siddiqui, Marjorie J. Arca, Samir K. Gadepalli, Erika A. Newman

Conference Presentation Abstracts

Abstract: Purpose: Representation among pediatric surgeons does not reflect the pediatric patient population. In line with the Association of Pediatric Surgery Training Program Directors (APSTPD)’s mission to broaden cognitive diversity and representation in the workforce via leadership development and longitudinal mentorship, the Alliance of Pediatric Surgeons Growing and Advancing Representation (APGAR) was created with national collaboration. One year later, we report on the composition of APGAR and the perspectives of its members. Methods: Seventeen mentorship groups (“pods”) were formally established with representatives from each premedical learner level from high school students to pediatric surgery fellows and attendings. Pods were led …

Assessing The Diagnostic Accuracy Of Ti-Rads In Pediatric Thyroid Nodules: A Multi-Instutional Review, Shachi Srivatsa, Ameer Al-Hadidi, Joseph R. Stanek, Kyle Horvath, Lauren N. Parsons, Claudia Martinez-Rios, Amanda Hopp, Samuel Engle, Matthew Plunk, Gail Shapira-Zaltsberg, Sapna Nagar, Sean E. Masters, Sayf Al-Katib, Rennard B. Tucker, Lamya Atwah, Summit Shah, Adam Bobbey, Robert Hoffman, Jennifer H. Aldrink

Conference Presentation Abstracts

Abstract: Purpose: Thyroid nodules are uncommon in children and adolescents but carry an increased risk of malignancy when present. The Thyroid Imaging Reporting and Data System (TI-RADS) is an adult-validated ultrasound-based risk assessment providing a prediction of malignant potential for thyroid nodules, thereby guiding recommendations for fine needle aspiration biopsy (FNAB). Minimal data exist regarding the applicability of TI-RADS to predict malignancy in pediatric thyroid nodules. This study aims to analyze the performance of TI-RADS for children and adolescents with thyroid nodules, hypothesizing that applying TI-RADS criteria would improve accuracy and reduce the number of recommended FNAB compared to American …

Anterior Cervical Discectomy And Fusion After Presentation To The Acute Care Setting: A Comparison Of Post-Operative Outcomes, Alex Miller, James Whaley, Daniel Park

Conference Presentation Abstracts

Introduction: For patients presenting with cervical radiculopathy or cervical myelopathy, surgical treatment is typically pursued after discussion in the outpatient setting. Yet, there exists a group of patients presenting to the acute care setting with intractable pain or progressive neurologic deficits who are indicated for operative treatment outside of outpatient evaluation. Given the differences in initial management and pre-operative optimization, it is unclear if surgical and post-operative outcomes differ between these populations. Materials and Methods: This was a retrospective cohort study from an academic medical center. Surgical case logs from the institution’s electronic medical record were used to identify patients …

Laparoscopic Repair Of Pediatric Femoral Hernias: A Scoping Review, Alex Chen, Spencer Wilhelm, Michael Sobolic, Begum Akay, Pavan Brahmamdam, Nathan Novotny

Conference Presentation Abstracts

No abstract provided.

Biportal Endoscopic Spine Surgery For Lumbar Laminectomy And Discectomy: Post-Operative Outcomes And Surgical Learning Curve, Matthew Lipphardt, Philip Zakko, Ali Jawad, Daniel Park, Maximillian Lee

Conference Presentation Abstracts

Background/Introduction

Biportal endoscopic spine surgery (BESS) is a minimally invasive spinal surgery which has gained increased traction for lumbar laminectomy and discectomy. To justify the transition from tubular or open surgery to BESS, BESS outcomes and surgical learning curve should be known. The primary goal of this study is to evaluate rates of complications with BESS as well as how these rates change with increased surgeon experience, especially in the US environment.

Materials/Methods

A United States Fellowship trained orthopaedic surgeon's clinical practice database was interrogated for consecutive patients who underwent BESS at a single institution. Patients aged greater than 18 …

Osteoporosis Is Underdiagnosed And Undertreated In Patients With Fragility Femoral Neck And Vertebral Compression Fractures, Philip Zakko, Lauren Eberhardt, Madeline Declercq, Ahyoung Park, Megan Audet, Daniel Park

Conference Presentation Abstracts

Background/Introduction

Femoral neck (FNF) and vertebral compression fractures (VCF) are common fragility fractures (FF) in the elderly population. Defined as fractures from low-energy trauma, FF are diagnostic of osteoporosis and require treatment. The purpose of this study was to assess whether patients were appropriately diagnosed and treated for osteoporosis following fragility FNF and VCF.

Materials/Methods

A retrospective chart review was performed at a single-institution from 1/1/2017 to 12/31/2020 on consecutive patients who sustained fragility FNF treated with closed reduction percutaneous pinning, hemiarthroplasty, or total hip arthroplasty or VCF treated with kyphoplasty. Patients <50 years of age, who sustained a high-energy or a non-osteoporotic pathologic fracture, were treated non-operatively, or deceased within one-year post-op were excluded. Preoperative demographics, ASA, CCI, smoking, alcohol, and glucocorticoid use were obtained. Diagnosis and treatment of osteoporosis, including dual-energy X-ray absorptiometry (DEXA) scans, calcium, vitamin D, bisphosphonates, denosumab, and alternative treatments (teriparatide, calcitonin, raloxifene, estrogen) were assessed pre-op and within one-year post-op. Subsequent FF were recorded.

Results

Of 593 patients, 276 FNF and 94 …