Medical Specialties Commons^™

Quantification Of Lactoyl-Coa (Lactyl-Coa) By Liquid Chromatography Mass Spectrometry In Mammalian Cells And Tissues., Erika L Varner, Sophie Trefely, David Bartee, Eliana Von Krusenstiern, Luke Izzo, Carmen Bekeova, Roddy S O'Connor, Erin L Seifert, Kathryn E Wellen, Jordan L Meier, Nathaniel W Snyder

Department of Pathology, Anatomy, and Cell Biology Faculty Papers

Lysine lactoylation is a recently described protein post-translational modification (PTM). However, the biochemical pathways responsible for this acylation remain unclear. Two metabolite-dependent mechanisms have been proposed: enzymatic histone lysine lactoylation derived from lactoyl-coenzyme A (lactoyl-CoA, also termed lactyl-CoA), and non-enzymatic lysine lactoylation resulting from acyl-transfer via lactoyl-glutathione. While the former has precedent in the form of enzyme-catalysed lysine acylation, the lactoyl-CoA metabolite has not been previously quantified in mammalian systems. Here, we use liquid chromatography-high-resolution mass spectrometry (LC-HRMS) together with a synthetic standard to detect and validate the presence of lactoyl-CoA in cell and tissue samples. Conducting a retrospective analysis …

Which Internal Medicine Clerkship Characteristics Are Associated With Students' Performance On The Nbme Medicine Subject Exam? A Multi-Institutional Analysis., Matthew M. Fitz, William Adams, Steven A. Haist, Karen E. Hauer, Linette P. Ross, Amanda Raff, Gauri Agarwal, T. Robert Vu, Jonathan Appelbaum, Valerie J. Lang, Chad Miller, Cyril Grum, Mark Fagan, Jennifer Foster, Hilary F. Ryder, Bruce Houghton, Ryan Nall, Amy Shaheen, Michael Elnicki, Anna Donovan, Stuart Kiken, Cynthia Ledford, Shobhina Chheda, Doug Paauw, Blake Barker, Maureen Lowery, Nina Mingioni, Deepti Rao, William Kelly

Division of Internal Medicine Faculty Papers & Presentations

PURPOSE: To identify which internal medicine clerkship characteristics may relate to NBME Medicine Subject Examination scores, given the growing trend toward earlier clerkship start dates.

METHOD: The authors used linear mixed effects models (univariable and multivariable) to determine associations between medicine exam performance and clerkship characteristics (longitudinal status, clerkship length, academic start month, ambulatory clinical experience, presence of a study day, involvement in a combined clerkship, preclinical curriculum type, medicine exam timing). Additional covariates included number of NBME clinical subject exams used, number of didactic hours, use of a criterion score for passing the medicine exam, whether medicine exam performance …

Prognostic Value Of Blastocyst Grade After Frozen Euploid Embryo Transfer In Patients With Recurrent Pregnancy Loss, Gayathree Murugappan, Julia G Kim, Jonathan D Kort, Brent M Hanson, Shelby A Neal, Ashley W Tiegs, Emily K Osman, Richard T Scott, Ruth B Lathi

Department of Obstetrics and Gynecology Faculty Papers

Objective: To determine if trophectoderm (TE) grade or inner cell mass (ICM) grade have predictive value after euploid frozen embryo transfer (euFET) among RPL patients.

Design: Retrospective cohort study.

Setting: Single fertility center, 2012-2018.

Patients: Patients with ≥ 2 prior pregnancy losses performing PGT-A with ≥1 euploid embryo for transfer.

Interventions: All patients underwent ICSI, trophectoderm biopsy, blastocyst grading and vitrification, and single euFET. Outcome of the first transfer was recorded.

Main outcome measures: Live birth (LB) and clinical miscarriage (CM) rates.

Results: 660 euFET were included. In a binomial logistic regression analysis accounting for age, BMI, AMH and day …

Peripubertal Serum Concentrations Of Organochlorine Pesticides And Semen Parameters In Russian Young Men., Ramy Abou Ghayda, Oleg Sergeyev, Jane S Burns, Paige L Williams, Mary M Lee, Susan A Korrick, Luidmila Smigulina, Yury Dikov, Russ Hauser, Lidia Mínguez-Alarcón

Department of Pediatrics Faculty Papers

BACKGROUND: Epidemiologic literature on the relation of organochlorine pesticides (OCPs) with semen quality among adult men has been inconclusive, and no studies have prospectively explored the association between peripubertal serum OCPs and semen parameters in young men.

OBJECTIVE: To evaluate prospective associations of peripubertal serum concentrations of hexachlorobenzene (HCB), β-hexachlorocylohexane (β-HCH), and p,p'-dichlorodiphenyldichloroethylene (p,p'-DDE) with semen parameters among young Russian men.

METHODS: This prospective cohort study included 152 young men who enrolled in the Russian Children's Study (2003-2005) at age 8-9 years and were followed annually until young adulthood. HCB, β-HCH, and p,p'-DDE concentrations were measured at the CDC by …

In Reply: May Cooler Heads Prevail During A Pandemic: Stroke In Covid-19 Patients Or Covid-19 In Stroke Patients?, Pascal Jabbour, Ahmad Sweid, Stavropoula Tjoumakaris, Michel Piotin, Waleed Brinjikji, Kimon Bekelis, Eytan Raz, Nader Sourour, Shahid M. Nimjee, Demetrius K. Lopes, Ameer E. Hassan, Aditya S. Pandey, L. Fernando Gonzalez, Ricardo A. Hanel, Adnan H. Siddiqui, David Hasan, Sean D. Lavine, Bernard R. Bendok

Department of Neurosurgery Faculty Papers

No abstract provided.

Which Sample Type Is Better For Xpert Mtb/Rif To Diagnose Adult And Pediatric Pulmonary Tuberculosis?, Mengyuan Lyu, Jian Zhou, Yuhui Cheng, Weelic Chong, Kang Wu, Teng Fang, Tianbo Fu, Binwu Ying

Department of Medicine Faculty Papers

OBJECTIVE: This review aimed to identify proper respiratory-related sample types for adult and pediatric pulmonary tuberculosis (PTB), respectively, by comparing performance of Xpert MTB/RIF when using bronchoalveolar lavage (BAL), induced sputum (IS), expectorated sputum (ES), nasopharyngeal aspirates (NPAs), and gastric aspiration (GA) as sample.

METHODS: Articles were searched in Web of Science, PubMed, and Ovid from inception up to 29 June 2020. Pooled sensitivity and specificity were calculated, each with a 95% confidence interval (CI). Quality assessment and heterogeneity evaluation across included studies were performed.

RESULTS: A total of 50 articles were included. The respective sensitivity and specificity were 87% …

Core Topic: Anemia, Marisyl De La Cruz, Md

Department of Family & Community Medicine Presentations and Grand Rounds

Agenda

• Diagnosis and evaluation
• Approach to anemia
• Hypoproliferative
• Hyperproliferative
• Management of common anemias
• Cases
• Q & A

• Become familiar with signs and symptoms of anemia
• Use laboratory findings to differentiate anemias
• Review pathophysiology of anemia and recognize anemia as a symptom of other conditions
• Understand management of common anemias seen in primary care

Anticoagulation And Bleeding Risk In Patients With Covid-19, Nancy Musoke, Kevin Bryan Lo, Jeri Albano, Eric Peterson, Ruchika Bhargav, Fahad Gul, Robert Dejoy, Grace Salacup, Jerald Pelayo, Padmavathi Tipparaju, Zurab Azmaiparashvili, Gabriel Patarroyo-Aponte, Janani Rangaswami

Department of Medicine Faculty Papers

BACKGROUND: There is no current standardized approach to anticoagulation in patients with Coronavirus Disease 2019 (COVID-19) while potential bleeding risks remain. Our study characterizes the patterns of anticoagulation use in COVID-19 patients and the risk of related bleeding.

METHODS: This is a single center retrospective analysis of 355 adult patients with confirmed diagnosis of COVID-19 from March 1 to May 31, 2020. Chi-square was used to analyze the relationship between degree of anticoagulant dose and bleeding events by site. Multivariable logistic regression was used to look at factors associated with inpatient death.

RESULTS: 61% of patients were being treated with …

When Limb Surgery Has Become The Only Life-Saving Therapy In Fop: A Case Report And Systematic Review Of The Literature, Esmée Botman, Sanne Treurniet, Wouter D Lubbers, Lothar A Schwarte, Patrick R Schober, Louise Sabelis, Edgar J G Peters, Annelies Van Schie, Ralph De Vries, Zvi Grunwald, Bernard J Smilde, Jakko A Nieuwenhuijzen, Marieke Visser, Dimitra Micha, Nathalie Bravenboer, J Coen Netelenbos, Bernd P Teunissen, Pim De Graaf, Pieter G H M Raijmakers, Jan Maerten Smit, Elisabeth M W Eekhoff

Department of Anesthesiology Faculty Papers

Fibrodysplasia ossificans progressiva (FOP) is a rare disease in which heterotopic ossification (HO) is formed in muscles, tendons and ligaments. Traumatic events, including surgery, are discouraged as this is known to trigger a flare-up with risk of subsequent HO. Anesthetic management for patients with FOP is challenging. Cervical spine fusion, ankylosis of the temporomandibular joints, thoracic insufficiency syndrome, restrictive chest wall disease, and sensitivity to oral trauma complicate airway management and anesthesia and pose life-threatening risks. We report a patient with FOP suffering from life-threatening antibiotic resistant bacterial infected ulcers of the right lower leg and foot. The anesthetic, surgical …

The Role Of Machine Learning In Spine Surgery: The Future Is Now, Michael Chang, Jose A Canseco, Kristen Nicholson, Neil Patel, Alex R. Vaccaro

Department of Orthopaedic Surgery Faculty Papers

The recent influx of machine learning centered investigations in the spine surgery literature has led to increased enthusiasm as to the prospect of using artificial intelligence to create clinical decision support tools, optimize postoperative outcomes, and improve technologies used in the operating room. However, the methodology underlying machine learning in spine research is often overlooked as the subject matter is quite novel and may be foreign to practicing spine surgeons. Improper application of machine learning is a significant bioethics challenge, given the potential consequences of over- or underestimating the results of such studies for clinical decision-making processes. Proper peer review …

Dosimetric Differences Between Cesium-131 And Iodine-125 Brachytherapy For The Treatment Of Resected Brain Metastases, Menachem Yondorf, Shahdabul Faraz, Andrew Smith, Albert Sabbas, Bhupesh Parashar, Theodore Schwartz, Gabriella Wernicke

Department of Radiation Oncology Faculty Papers

Purpose: To compare treatment plans and evaluate dosimetric characteristics of permanent cesium-131 (131Cs) vs. iodine-125 (125I) implants used in brain brachytherapy. Material and methods: Twenty-four patients with 131Cs implants from a prospective phase I/II trial were re-planned with 125I implants. In order to evaluate the volume of brain tissue exposed to radiation therapy (RT), the dose volume histogram was generated for both radioisotopes. To evaluate the dosimetric differences of the two radioisotopes we compared homogeneity (HI) and conformity indices (CI), and dose covering 100% (D100), 90% (D90), 80% (D80), and 50% (D50) of the clinical target volume (CTV). Results: At …

Evaluation And Management Of Common Anorectal Complaints, Krys Foster, Md, Mph

Department of Family & Community Medicine Presentations and Grand Rounds

Objectives:

• Review the anatomy of the rectum and anus
• Learn skills to perform an appropriate H&P for anorectal complaints
• Appreciate key diagnostic features to common anorectal diagnoses
• Recognize risk factors and red flag signs/symptoms that prompt further evaluation and possible referral

Chronic Muscle Pain, Michael Bozzi, Md

Department of Family & Community Medicine Presentations and Grand Rounds

Learning Objectives ●How to approach the patient with chronic muscle pain ●How a complete history and physical can prevent extraneous testing and unnecessary or premature referrals ●Treatment strategies

Description And Reliability Of The Aospine Sacral Classification System, Alex R. Vaccaro, Gregory D. Schroeder, Srikanth N. Divi, Christopher K Kepler, Conor P Kleweno, James C. Krieg, Jefferson R Wilson, Jörg H Holstein, Mark Kurd, Reza Firoozabadi, Luiz R Vialle, F Cumhur Oner, Frank Kandziora, Jens R Chapman, Klaus J Schnake, Lorin M Benneker, Marcel F Dvorak, Shanmuganathan Rajasekaran, Emiliano N Vialle, Andrei F Joaquim, Mohammad Mostafa El-Sharkawi, Gaurav R Dhakal, Eugen C Popescu, Rishi M Kanna, S P J Muijs, Jin W Tee, Carlo Bellabarba

Department of Orthopaedic Surgery Faculty Papers

BACKGROUND: Several classification systems exist for sacral fractures; however, these systems are primarily descriptive, are not uniformly used, have not been validated, and have not been associated with a treatment algorithm or prognosis. The goal of the present study was to demonstrate the reliability of the AOSpine Sacral Classification System among a group of international spine and trauma surgeons.

METHODS: A total of 38 sacral fractures were reviewed independently by 18 surgeons selected from an expert panel of AOSpine and AOTrauma members. Each case was graded by each surgeon on 2 separate occasions, 4 weeks apart. Intrarater reproducibility and interrater …

Is Host Metabolism The Missing Link To Improving Cancer Outcomes?, Christopher M Wright, Anuradha A. Shastri, Emily K Bongiorno, Ajay Palagani, Ulrich Rodeck, Nicole L Simone

Kimmel Cancer Center Faculty Papers

For the past 100 years, oncologists have relentlessly pursued the destruction of tumor cells by surgical, chemotherapeutic or radiation oncological means. Consistent with this focus, treatment plans are typically based on key characteristics of the tumor itself such as disease site, histology and staging based on local, regional and systemic dissemination. Precision medicine is similarly built on the premise that detailed knowledge of molecular alterations of tumor cells themselves enables better and more effective tumor cell destruction. Recently, host factors within the tumor microenvironment including the vasculature and immune systems have been recognized as modifiers of disease progression and are …

Hamman-Rich Syndrome: A Diagnosis Of Exclusion In The Covid-19 Pandemic., Qian Zhang, Ahmad Raza, Vincent Chan, Artem Minalyan, John Madara, Md

Abington Jefferson Health Papers

Hamman-Rich syndrome is a rapidly progressive interstitial lung disease with acute respiratory distress syndrome physiology. It carries a grave prognosis and a high early mortality rate. It is often distinguished from other similar pulmonary pathologies based on the clinical course, laboratory findings, bronchoalveolar lavage testing, and pathology report. We detail a 77-year-old lady with no prior pulmonary disease, smoking history, or occupational and environmental exposures present to the emergency department found to be in acute hypoxic respiratory failure with impressive progressive radiographic findings. The presumptive diagnosis of Hamman-Rich syndrome was made based on a combination of factors after ruling out …

Serum Ammonia And Folate Levels: Opportunities For High Value Care, R. Benson Jones Jr., Md, Sean Dikdan, Md, Bracken Babula, Md

The Medicine Forum

High value care encompasses a variety of principles including ordering tests with high diagnostic yield, while reducing low value practice.

Refusing To Be Labeled, Jennifer Perugini

The Medicine Forum

Refusing to be Labeled

Case Report Of E-Cigarette Associated Lung Injury In A Health Female, Mario Fonseca-Paricio, Md, Alan Gandler, Md, Boyd Hehn, Md

The Medicine Forum

This is a case of a woman presenting with four days of diarrhea and dyspenea found to have E-cigarette or vaping-associated lung injury (EVALI)

A Case Report Of Bullous Subconjunctival Hemorrhag In Adenoviral Conjunctivitis, Sean Haynie, Jesse Johnson, Md

The Medicine Forum

A 78-year-old female with a past medical history of optic neuropathy and atrial fibrillation on warfarin presented with two weeks of progressive bilateral eye redness, swelling, pain, and blurry vision.

A Case Report Of Tragaxofusp Causing Severe Tumor Lysis Syndrome In A Patient With Blastic Plasmacytoid Dendritic Cell Neoplasm, Shuwen Lin, Md, Alice Wang, Md

The Medicine Forum

The patient was an 83-year-old male without significant past medical hsitory who presented to his primary care physician with several days of generalized malaise

Exploring The Adverse Effects Of Car-T Therapy: A Cases Report Of Potential Minoca In Car-T, Danielle Verghese, Pgy-1, Adam Binder, Md, Colin Thomas, Md

The Medicine Forum

A 48-year-old man with a history of Stage IV Diffuse Large B-Cell Lymphoma refractory to R-CHOP alternating with high-dose methotrexate and cytarbine, craniospinal irradiation, and haploidentical stem cell transplant, underwent CD 19-directed CAR-T.

A Case Report Of Hemophagocytic Lymphohistiocytosis Secondary To Disseminated Tuberculosis, Shuwen Lin, Md, Christoher Terry

The Medicine Forum

A 72-year-old woman with past medical history of hypertention and type 2 diabsetes presented to the emergency department for one day history of fevers, poor oral intake, and fatigue.

From The Desk Of The Residency Program Director, Emily Stewart, Md, Facp

The Medicine Forum

It has been a historic year for the Nation, City of Philadelphia and teh Jefferson Internal Medicine Residency Program. We have eperienced many health care crises starting with the closure of the historic Philadelphia hospital, Hahnemann. We welcomed residents form this program as part of the Jefferson Family and integrated many patients into our practices.

From The Editors, Eitan Frankel, Md, Guy Katz, Rachel Redfield, Navdeep Sangha, Michael Weintraub, Randi Zukas

The Medicine Forum

We are delighted to present you with the 21st annual edition of The Medicine Forum.Here in the birthplace of our nation, we like to think of The Medicine Forum as being of the housestaff, by the housestaff and for the housestaff. Undeniably, this publication would not be possible without the countless hours dedicated by our residents, students, fellows and faculty.

Table Of Contents: The Medicine Forum Volume 21, 2019-2020

The Medicine Forum

Table of Contents: The Medicine Forum Volume 21, 2019-2020

An Unusual Treatment For Chronic Myelomonocytic Leukemia, Eric Warner, Msiii, Neil Palmisiano, Md

The Medicine Forum

A 76-year-old female with a past medical history of an extraosseous chondrasrcoma status-post-resection thirty years prior, hypertension, hyperlipidemia, and hypothyroidsimm presented to her primary care physicial with fatigue, two weeks of dyspnea on exertion, lightheadedness, and nausea.

Diagnosing Non-Hfe Hereditary Hemochromatosis, Brian Park, Md, Naman Upadhyay, Md, Dina Halegoua-Demarzio, Md

The Medicine Forum

A 63-year-old Caucasian female presented for evaluation of abnormal bile duct appearance on ERCP after being diagnosed with gallstone pancreatitis, duodenal ulcers and gastritis at another hospital.

Pericardial Effusion With Tamponade Physiology In A Patient With Multiple Myeloma, Sairamya Bodempudi, Md, Rukaiya Bashir-Hamidu, Md, Preya Simlote, Md, Shuwen Lin, Md, Philip Margiotta, Md, Tina Boortalary, Md, Gregary D. Marhefka, Md

The Medicine Forum

A 78-yeaer old African American female with a past medical history of IgA Kappa Multiple Myseloma was transfered to the Cardiovascular Intensive Care Unit (CVICU) at Thomas Jefferson University Hospital (TJUH) after being diagnosed with a pericardial effusion with tamponade physiology at an outside hospital.

An Approach To Refractory Hypoxemia, Daniel Garrido, Md, Evan Nardone, Md, Mark Mallozzi, Md

The Medicine Forum

A 74-year-old female with no significant pulmonary history presented as a transfer from an outside hospital for persistent refractory hypoxemia.