Equipment and Supplies Commons^™

Mechanistic Investigation Of Ring-Opening Polymerization Of Polycaprolactone Using Tin(Ii) Catalysts: Ligand Effects And Biomedical Applications, Eva-Larue M. Barber

Honors Scholar Theses

This research explores the mechanistic aspects of ring-opening polymerization (ROP) of ε-caprolactone (CL) to produce polycaprolactone (PCL), a biodegradable polymer widely used in biomedical applications. The study investigates how light exposure and catalyst concentration influence polymerization efficiency, using tin(II) 2-ethylhexanoate [Sn(Oct)₂] as the catalyst in a non-polar toluene solvent at 90 °C. Reactions were conducted under either ambient light or black light bulb (BLB) illumination, with monomer-to-catalyst ratios of 1:1 and 200:1.

Proton nuclear magnetic resonance (¹H NMR) spectroscopy was used to analyze conversion efficiency by tracking the disappearance of monomer signals and appearance of characteristic PCL peaks. Results revealed …

Serendipitous Supernormality, Behzad B. Pavri, Eitan Frankel

Division of Cardiology Faculty Papers

We describe a patient who underwent AV node modification to create complete heart block in the setting of incessant, ablation-and-drug-refractory, symptomatic atypical atrial flutter. His dual chamber defibrillator (previously implanted for resuscitated cardiac arrest) was programmed to the VVIR mode at a faster pacing rate of 85 bpm. Serendipitously, this rate was an almost exact factorial of his flutter rate of 250-260 bpm. This resulted in every 6th flutter wave falling in the supernormal period, resulting in fixed-coupled supraventricular bigeminy and trigeminy in the setting of complete heart block. Reprogramming the pacing rate to 75 bpm abolished bigeminy and trigeminy.

Using Point-Of-Care Ultrasound For The Medical Management Of Marathoners And Spectators: A Case Series, Jacob D. Pope, Casey Wilson, Kelsey Daller, Jonathan Hardin, Steven Rickett

HCA Healthcare Journal of Medicine

Background

Temporary field hospitals play a crucial role in providing medical care to individuals who experience illnesses and injuries during mass gathering events. Handheld point-of-care ultrasound (POCUS) devices offer an affordable and portable adjunct for emergency care. We present multiple patients from a field hospital during a marathon event in which handheld POCUS devices changed clinical management.

Case Presentation

A 75-year-old man who had fallen was able to be discharged after a lung exam confirmed no rib fractures or pneumothorax. A hypotensive and hypoglycemic 21-year-old man had an echocardiogram confirming volume depletion. He received treatment, and a repeat exam demonstrated …

Portable Head Computed Tomography Protocol For Trauma, Christian Quinones, Alexander Bolufer, Cory Hewitt, Sagun Tuli

HCA Healthcare Journal of Medicine

The use of portable computed tomography (CT) scanners has been shown to reduce risks associated with intrahospital transport and to expedite imaging in critically ill patients. While their use is established in intensive care units, their utility on intraoperative trauma patients remains underexplored. This paper reviews existing literature on portable CT use, defines appropriate clinical indications, outlines contraindications, and identifies quality metrics and implementation challenges. It also presents a proposed protocol for integrating portable head CT imaging into trauma workflows, focusing on early identification of intracranial or spinal injuries in the operating room. The development and analysis of standardized protocols …

Decreasing Extubation Times Using Adaptive Support Ventilation: A Scoping Review, Daphne Thomas, Cole Vest, Luke Wilson, Shannon Witcher, Bobby Bellflower Dnsc, Nnp-Bc, Faanp

Doctor of Nursing Practice Projects

Purpose/Background:This scoping review explores the effectiveness of adaptive support ventilation (ASV) compared to conventional ventilation modes in reducing postoperative extubation times in adults undergoing general anesthesia with ventilatory support. Ventilator weaning is a critical determinant of recovery and outcomes in intensive care settings. ASV, a closed-loop ventilation mode, automatically adjusts ventilator parameters based on patient-specific respiratory mechanics and demand to optimize the weaning process. Although promising, evidence regarding ASV’s effectiveness remains inconsistent across different patient populations and surgical contexts.

Methods: A systematic literature search was conducted from August 2023 to December 2024 across PubMed, CINAHL, Medline, JAMA, and Google …

Potential Benefits And Drawbacks Of Washing Stored Red Blood Cells Prior To Transfusion: A Scoping Review, Mary Mccullough

Student Works

Background: There is growing interest in washing banked blood with an intraoperative autotransfusion device (IAT) prior to transfusing to patients. The main purpose of this practice is to reduce the effects caused by storage lesion, both to the blood and the patient, and diminish the cost and of washing by using an IAT as opposed to washing in the blood bank.

Objective: The objective of this scoping review is to summarize the existing data on the use of IATs for washing stored banked blood and evaluate the potential advantages and disadvantages associated with transfusing the washed blood.

Method: This scoping …

The Effect Of Different Surface Treatments On The Roughness, Translucency, And Staining Of 3d-Printed Occlusal Device Materials, Silvia Rojas Rueda, Hanna Sepsick, Mohammed Hammamy, Amir H. Nejat, Edwin Kee, Nathaniel C. Lawson

School of Dentistry Faculty Publications

OBJECTIVES: To compare surface treatments (as-printed, optical polish, resin-coated, polished) of two 3D-printed occlusal device materials (KeySplint Soft and NightGuard Flex 2) cured with or without glycerin for surface roughness, translucency, and coffee staining. MATERIALS AND METHODS: Discs (2 mm thick) from two 3D-printed occlusal resins (KeySplint Soft and NightGuard Flex 2) were printed using a DLP 3D printer (SprintRay Pro 95), cleaned (ProWash S), and cured (ProCure 2) with or without glycerin. Some specimens were printed in an optical polish tank. Specimens were either as-printed, resin-coated, or polished. Reference milled (ProArt CAD Splint) and heat-cured (Excel Formula Heat Cure …

Image Quality Analysis Of Head Cts Obtained On A New Portable Scanner Compared To Stationary Ct, Mara M. Kunst, Juan E. Small, Sebastian E. Flacke, Joseph D. Burns, Maximilian Smith, Christoph D. Wald

The Lahey Journal

Background/Purpose: The use of mobile head CT scanning in the ICU setting has both clinical and economic advantages, particularly if able to provide image quality close or equal to fixed CT scanners.

The purpose of the study is to evaluate the image quality of a new portable CT scanner, compared to a fixed CT platform.

Materials/Methods: Inpatients (n=11), age> 60 requiring head CT evaluation were enrolled and consented to obtain an additional head CT on the portable CT, following their fixed exam.

Nine patients were able to complete the study; seven patients received duplicate exams with matched imaging technique, and …

First Documented Case Of A Third-Generation Lvad Rotor Dislodgement, Tyler Lee, Chaitra Janga, Enad Haddad, Kevin Hagan, Donald C. Haas

Abington Jefferson Health Papers

The third-generation left ventricular assist device (3G-LVAD) has significantly reduced adverse events and hospitalizations compared with previous generations. This case presents a rare 3G-LVAD rotor dislodgement malfunction, not previously documented, in a 77-year-old man. Further research behind the malfunction is warranted for early prevention and appropriate management.

Comparison Between Maia And Mp-3 In Healthy Subjects And Patients With Diabetes, Diabetic Retinopathy, And Age-Related Macular Degeneration, Anna Marmalidou, Haleema Siddiqui, Muhammad Usman Jamil, Kwang Min Woo, Antonio Yaghy, A. Yasin Alibhai, Hiroyuki Takahashi, Stephanie Kaiser, Keith Effert, Peter Zhao, Shilpa Desai, Christopher Robinson, Jay Duker, Nadia Waheed

SKMC Student Presentations and Publications

PURPOSE: The purpose of this study was to assess the comparability of mean sensitivity (MS) values obtained using the Macular Integrity Assessment (MAIA; CenterVue S.p.A. [iCare], Padova, Italy) and Microperimeter-3 (MP-3; NIDEK CO., Ltd., Gamagori, Japan) microperimetry (MP) devices.

METHODS: This cross-sectional study includes subjects with healthy eyes, eyes with diabetes mellitus without diabetic retinopathy (DM no DR), diabetic retinopathy (DR), and non-exudative age-related macular degeneration (AMD). Patients underwent testing on both MAIA and MP-3 MP devices, using a 10-2 macular grid with 68 stimuli and identical parameters. A diagnosis-adjusted linear regression model and mixed modeling mapped MP-3 MS to …

Reducing Medical Waste, George M. Jeha, Stanislav N. Tolkachjov

School of Medicine Faculty Publications

No abstract provided.

Trends And Financial Burden Of Gastrointestinal Stromal Tumors In The United States: A Comprehensive Analysis Of United States Hospitalizations, Sneh Sonaiya, Raj Patel, Charmy Parikh, Dushyant Dahiya, Karan Yagnik, Nicholas Alonso Barnechea Alvarado, Chun-Han Lo, Kenneth Chow, Abbas Ali Hussain, Anushri Parikh, Pranav Patel, Babu P. Mohan

Department of Internal Medicine Faculty Research

Background: Gastrointestinal stromal tumors (GISTs) are associated with a substantial economic burden to the healthcare system despite their relatively low incidence and prevalence compared to other more common malignancies. This study aimed to evaluate trends in GIST-related hospitalizations, inpatient mortality, and the financial burden of GISTs in the United States. Methods: The National Inpatient Sample (NIS) database from 2016 to 2020 was used to identify adult hospitalizations (age > 18 years) with a primary diagnosis of GIST. A multivariate logistic regression along with Chi-square and t-tests was performed using SAS 9.4 software to analyze inpatient GIST-associated mortality, inflation-adjusted total hospital charge …

Incidence And Predictors Of Woven Endobridge (Web) Shape Modification Following Treatment Of Intracranial Aneurysms In A Large Multicenter Study, Nimer Adeeb, Hamza Adel Salim, Basel Musmar, Assala Aslan, Christian Swaid, Miguel Cuellar, Mahmoud Dibas, Nicole Cancelliere, Jose Danilo Bengzon Diestro, Oktay Algin, Sherief Ghozy, Sovann Lay, Adrien Guenego, Leonardo Renieri, Joseph Carnevale, Guillaume Saliou, Panagiotis Mastorakos, Kareem El Naamani, Eimad Shotar, Markus Möhlenbruch, Michael Kral, Charlotte Chung, Mohamed Salem, Ivan Lylyk, Paul Foreman, Hamza Shaikh, Vedran Župančić, Muhammad U Hafeez, Joshua Catapano, Muhammad Waqas, Muhammet Arslan, Onur Ergun, James Rabinov, Yifan Ren, Clemens Schirmer, Mariangela Piano, Anna Kühn, Caterina Michelozzi, Robert Starke, Ameer Hassan, Mark Ogilvie, Anh Nguyen, Jesse Jones, Waleed Brinjikji, Marie Nawka, Marios Psychogios, Christian Ulfert, Bryan Pukenas, Jan-Karl Burkhardt, Thien Huynh, Juan Carlos Martinez-Gutierrez, Muhammed Amir Essibayi, Sunil Sheth, Diana Slawski, Rabih Tawk, Benjamin Pulli, Boris Lubicz, Pietro Panni, Ajit Puri, Guglielmo Pero, Eytan Raz, Christoph Griessenauer, Hamed Asadi, Adnan Siddiqui, Elad Levy, Neil Haranhalli, David Altschul, Andrew Ducruet, Felipe Albuquerque, Robert Regenhardt, Christopher Stapleton, Peter Kan, Vladimir Kalousek, Pedro Lylyk, Srikanth Boddu, Jared Knopman, Stavropoula Tjoumakaris, Pascal Jabbour, Frédéric Clarençon, Nicola Limbucci, Vivek Yedavalli, Max Wintermark, Vitor Mendes Pereira, Aman Patel, Hugo Cuellar-Saenz, Adam Dmytriw

Department of Neurosurgery Faculty Papers

The Woven EndoBridge (WEB) device is FDA-approved for the treatment of bifurcation aneurysms. Despite its wide popularity, it has been under scrutiny for its association with potential aneurysm recanalization and retreatment due to device shape modification. This study aims to analyze the shape modification rate of WEB devices and identify factors associated with this phenomenon, as well as its correlation with aneurysm retreatment. We conducted a retrospective review of the WorldWide WEB Consortium database, including adult patients treated for intracranial aneurysms with the WEB device. We assessed aneurysm occlusion using the WEB Occlusion Scale and defined WEB shape modification as …

Safety And Efficacy Of Different Stent Strategies In Percutaneous Coronary Intervention: A Network Meta-Analysis, Waqas Ullah, Harigopal Sandhyavenu, Syeda Ramsha Zaidi, Mileydis Alonso, Muhammad Atif Khan, Irfan Ullah, Farah Yasmin, Aravind Reddy Polam, Salman Zahid, Arnav Kumar, Ewout Steyerberg, Mohammed Murtaza, Chadi Alraiesm, Jeffrey Rade

Jefferson Health - Northeast Papers (formerly Aria Health Papers)

BACKGROUND: The utility of polymer-permanent, polymer-absorbable, and polymer-free drug-eluting stents (DES) in the context of different eluting drugs in patients undergoing percutaneous coronary intervention (PCI) remains controversial.

OBJECTIVES: The purpose of this study was to compare the efficacy of different DES strategies in post-PCI patients.

METHODS: Digital databases were searched to select all randomized control trials. Different combinations of DES were directly compared with permanent-polymer sirolimus-eluting stents. The primary outcome was major adverse cardiovascular events; a composite of cardiovascular mortality, myocardial infarction (MI), and target vessel revascularization. A network meta-analysis was performed to determine the net relative risk (RR) and …

Blunt And Penetrating Trauma In Resource-Limited Settings: Challenges, Innovations, And Opportunities For Improvement​, Tallon Muhlestein

Annual Research Symposium

This literature review explores key challenges with innovative solutions to managing blunt and penetrating trauma in resource-limited settings. Healthcare gaps can be closed in resource-limited settings through technology advances and these innovative solutions.

The Impact Of Teleophthalmology On Underserved Populations: A Review Of Literature, Rutu H. Vyas, Marietta Kaloyan, Brian Leung, Isha Gondi, Yinwen Wang, Sherli Chenthittayil

Annual Research Symposium

No abstract provided.

Axillo-Caval Extra-Anatomic Venous Bypass Creation Via Direct Percutaneous Puncture Of The Superior Vena Cava, Stephan S. Leung, Patrick Lee, Anthony N. Hage, Robert W. Ford

Department of Radiology Faculty Papers

No abstract provided.

Immediate Postplacental Intrauterine Device Placement: Retrospective Cohort Study Of Expulsion And Associated Risk Factors, Emily Leubner, Brooke Levandowski, Sage Mikami, Theresa Green, Sarah Betstadt

Abington Jefferson Health Papers

BACKGROUND: Postpartum contraception is typically provided during postpartum visits. When desired and accessible, the immediate postpartum period provides an additional opportunity to increase the use of more effective contraceptive methods to potentially reduce subsequent unintended pregnancies and improve pregnancy outcomes. In New York State, recent policy changes expanded Medicaid coverage to include immediate postplacental intrauterine device insertion. OBJECTIVE: This study aimed to investigate clinically documented intrauterine device expulsion within 12 months of placement in patients who depend on state-funded health insurance. STUDY DESIGN: This retrospective cohort study included Medicaid patients with an immediate postplacental intrauterine device placed after third-trimester delivery, …

Effect Of A Durable Medical Equipment Template On A Family Medicine Clinic, Zara Soomro, Ali Al-Nahi, Neil Bhangoo, Yi Lei, John Nguyen, Sahar Elchehabi, Austin Driskill, Priyanka Reddy, Dylan Huynh, Jonathan Choi, Dante Paredes, Tasaduq H. Mir

North Texas Research Forum 2025

Background Patients rely on durable medical equipment (DME) to maintain their independence, however supplying and ordering DME for patients is challenging due to lack of a clear workflow, inadequate documentation, and differing coverage criteria, which has led to delays in patients receiving their DME. Current criteria to order DME include the following items: equipment description, quantity, length of need (estimate), diagnosis, recent height and weight, name, date of birth, home address, insurance company and member ID. The objective of this quality improvement project is to provide a clear and concise template for providers to use in ordering DME. Methods The …

The Timing For Primary Prevention For Icd In The Current Era Of Pharmacotherapy, Anastasia Shchendrygina, Amin Yehya, Hadi Skouri

Department of Medicine Faculty Publications

Recent advances in the pharmacological therapy of heart failure with reduced ejection fraction (HFrEF) have significantly impacted the overall survival, heart failure hospitalisations and rates of sudden cardiac death (SCD). In this context, the relevant timing of placing ICDs as primary prevention is a matter of on-going debate. This manuscript provides evidence for an updated view regarding the timing of implanting ICD in eligible patients with HFrEF receiving optimal guideline-directed medical therapy, accounting for the timing to reverse cardiac remodelling (RCR) occurrence and residual SCD risks over time. Clinically significant RCR occurs beyond 3 months of optimal guideline-directed medical therapy, …