Bacterial Infections and Mycoses Commons^™

The Effect Of Empiric Initiation Of Treatment On Outcomes Among Patients Presenting With Extrapulmonary Mycobacterium Tuberculosis Infection In A Community Hospital Setting, Talha Awwal, Faisal Raja Kh, Hanya Awaba, Waseem Anwar, Jinma Ren, Muhammad Aamir Safdar, Saqib Walayat, John J. Farrell

Journal of Community Hospital Internal Medicine Perspectives

Background: Extrapulmonary tuberculosis (EPTB) accounts for ~20% of Mycobacterium tuberculosis infections in Pakistan. Diagnostic delays are common and may worsen outcomes. We evaluated whether empiric treatment initiation improves outcomes among patients with EPTB at a large public hospital in Islamabad, Pakistan. Methods: Retrospective cohort of consecutive EPTB cases at Pakistan Institute of Medical Sciences (January–June 2016). Patients were categorized as clinically diagnosed (symptoms/radiology) or laboratory-supported (histology, microbiology, or biochemical tests). Standard Directly Observed Therapy Short-course (DOTS) based regimens were used. Outcomes were treatment success, failure, loss to follow-up, and mortality; groups were compared using chi-square testing. Results: Of 317 EPTB …

Standardized Infection Prevention Protocol To Reduce Surgical Site Infections In Pediatric Neurosurgery, Pisey Kareth

All Doctor of Nursing Practice (DNP) Scholarly Projects

Problem: Surgical site infections (SSIs) are a significant concern in the pediatric neurosurgical patient population and are associated with increased morbidity, longer hospital stays, and increased medical expenses. The absence of a standardized preoperative infection prevention process led to variability in perioperative care practices and infections at the practicum site.

Aim of the Project: The aim of the project was to reduce the incidence of SSIs among pediatric patients undergoing neurosurgical procedures who were initially evaluated in an ambulatory setting.

Review of the Evidence: Evidence supports the implementation of bundled infection prevention strategies as a more effective approach to reducing …

Pyogenic Liver Abscess Associated With Acute Hepatitis A And Burkholderia Cepacia Sepsis In A Child: A Rare Case Report, Anjali M, Poonam Wade, Snehal Sahebrao Kasbe, Neha Bhongale

Digital Journal of Clinical Medicine

Pyogenic liver abscess is an uncommon but potentially life-threatening infection in children. Although it is usually associated with underlying predisposing conditions, its occurrence in association with acute hepatitis A is infrequently reported.

We report a case of a 4-year-old male child who presented with fever, jaundice, and abdominal distension and was diagnosed with pyogenic liver abscess associated with concurrent hepatitis A infection and Burkholderia cepacia complex sepsis.

This case underscores the need to consider secondary bacterial infection in children with hepatitis A who have persistent fever or an unexpected clinical course despite appropriate supportive care. Although jaundice may initially be …

Closing The Gaps: Reforming Maryland Controls On Veterinary Antimicrobial Distribution, Samantha Capaldo, Kerry Mcclaughry

Journal of Food Law & Policy

Antimicrobials have been used in livestock and other food animals in the United States (“U.S.”) since the late 1940s. An antimicrobial is “[a]ny natural, synthetic, or semisynthetic substance that can eradicate or prevent the growth of microbes,” including “[a]ntibacterial, antifungal, antiparasitic, and antiviral medications.” Antimicrobial use in food animals is subject to a complex statutory and regulatory framework at both the state and federal levels. Antimicrobial use in food animals has been widely criticized for contributing to antimicrobial-resistant bacterial infections in humans. In response to this criticism, the U.S. Food and Drug Administration (“FDA”) and several states, including Maryland, have …

Lungs And Beyond: Seizures As Presenting Symptom In A Patient With Mycobacterium Chimaera Infection, Samar Mehyar, Tripti Adhikari, Shweta Kambali, Harneet K. Ghumman, Avneet K. Ghumman, Parul Sud, Mehrshad Fathian Sabet, Elizabeth Mikhail, Sohrab Singh

Journal of Community Hospital Internal Medicine Perspectives

Mycobacterium chimaera is a slow-growing, non-tuberculous mycobacterium (NTM) that belongs to the Mycobacterium avium complex (MAC). It first emerged as a pathogen after being associated with infections in patients who underwent cardiothoracic surgery when patients were getting exposed to heater cooler units, especially those requiring extracorporeal membrane oxygenation (ECMO) or prosthetic valve placement. We report an atypical presentation of M. chimaera infection in a patient with COPD, but no prior history of cardiac surgery or immunosuppression.

Understanding The Immune Responses Of Macrophages And Neutrophils In Synovial Fluid And Post-Operative Joint Environments, Allison Noelle Snyder

Rowan-Virtua Research Day

Periprosthetic joint infections (PJI) are devastating complications of total joint replacement (TJA). Even with aggressive antibiotic treatments, PJI recurrence rates are >17%, and 5-year survival is only 87.3%. Understanding the levels of inflammatory markers and cell types present at different timepoints is crucial in maximizing antimicrobial therapy and preventing adverse outcomes following TJA. This study tests the hypothesis that the synovial fluid environment of PJI induces immunosuppression in human macrophages, thereby hindering their ability to kill bacteria.

Resensitization Of Clinical Isolates Of Mdr-Acinetobacter Baumannii To Antibiotics Using Bacteriophage Therapy, Priyal Gajera, Valerie J. Carabetta

Rowan-Virtua Research Day

Introduction:

Antibiotic resistance poses a major global health threat, particularly with multidrug-resistant (MDR) pathogens such as Acinetobacter baumannii, which exhibits resistance to multiple antibiotic classes, including carbapenems.¹ As conventional treatments become less effective, alternative therapies such as bacteriophage therapy are gaining attention. Bacteriophages offer targeted antibacterial activity and may enhance antibiotic efficacy or resensitize resistant strains. This study investigates the synergistic effects of bacteriophage ΦCO03 combined with antibiotics against MDR A. baumannii.

Methods:

Clinical isolates (M20, M5) of A. baumannii were cultured in LB broth at 37°C. Bacteriophage ΦCO03 was isolated and purified using plaque assays. Synergy between phage …

Sonidegib (Lde225) Reduces Inflammatory Signaling And Preserves Taste Buds In A Sepsis Mouse Model, Ashlyn Mcclelland, Murod Khikmatov, Archana Kumari, Gabrielle Audu, Isaiah Nawaz, Kingsley Yin

Rowan-Virtua Research Day

Background:

Sepsis triggers a complex and widespread inflammatory response that disrupts multiple organ systems, including the taste organ. Loss of taste is a symptom recognized in sepsis survivors and has the potential to contribute to further complications such as anorexia. Prior work from our lab demonstrated that cecal ligation and puncture (CLP) in mice induces immune cell infiltration and alters taste bud morphology in the fungiform papillae located in the anterior tongue. We hypothesize that similar deleterious effects occur in the circumvallate papillae (CVP) of the posterior tongue and that the usage of the smoothened inhibitor, sonidegib, could reduce these …

Case Report: Necrotizing Pneumonia, Veroneka Mikhail Md

Rowan-Virtua Research Day

Necrotizing pneumonia is an uncommon but severe complication of community-acquired pneumonia (CAP), characterized by progressive parenchymal liquefaction, cavitation, and destruction of normal lung architecture, and associated with significant morbidity and mortality. Clinicaly, early presentations may be indistinguishable from uncomplicated pneumonia (pna), with fever, cough, pleuritic chest pain, and dyspnea, which can delay recognition in the emergency department. Differential diagnosis for these symptoms is broad and includes uncomplicated pneumonia, septic emboli, lung abscesses, and pleural effusion. However, patients effected with necrotizing pneumonia often exhibit more severe systemic toxicity, rapid progression of respiratory failure, and hemodynamic instability. In this case report, we …

Tuberculosis In Long-Term Asian American Immigrant Residents: Trends And Risk Factors In Cases Diagnosed ≥10 Years After U.S. Arrival, Katherine Xie, Kai Mon Lee, Todd Schachter

Rowan-Virtua Research Day

Tuberculosis in Long-Term Asian American Immigrant Residents: Trends and Risk Factors in Cases Diagnosed ≥10 Years After U.S. Arrival

Katherine Xie, MSc¹, Kai Mon Lee, PhD¹, Todd Schachter, DO¹

¹Rowan-Virtua School of Osteopathic Medicine, 1 Medical Center Dr, Stratford, NJ 08084

Background

In the U.S., TB cases are largely due to reactivation of latent TB infections (LTBI) of immigrants from high-burden countries. The CDC and U.S. Preventive Services Task Force currently recommend screening newer immigrant populations, especially those born in highly-burdened areas with TB. This guideline mostly targets newly immigrated populations, defined as those …

Resensitization Of Clinical Isolates Of Mdr-Acinetobacter Baumannii To Antibiotics Using Bacteriophage Therapy, Zainab Mubasher, Valerie J. Carabetta

Rowan-Virtua Research Day

Acinetobacter baumannii is a Gram-negative, opportunistic pathogen notorious for causing severe infections in immunocompromised patients, particularly those with prolonged hospitalizations or invasive procedures1. Originally susceptible to many antibiotics in the 1970s, this bacterium has since evolved extensive resistance, making it one of the most challenging members of the ESKAPE group of multidrug-resistant (MDR) pathogens2. Its ability to survive in harsh environments and acquire resistance determinants has led to its classification as a “red alert” pathogen by health authorities worldwide. The increasing prevalence of MDR A. baumannii infections in healthcare settings underscores an urgent need for alternative treatment strategies as conventional …

Quantifying Qtc Prolongation Risk At Scale: Cardiac Safety Implications Of Moxifloxacin-Based Tb Regimens, Wesley Augustus Kim, Nikhila Arcakam, Brandon Velazquez

Rowan-Virtua Research Day

Tuberculosis treatment is undergoing its most significant transformation in decades. In recent years, updated ATS/CDC/ERS/IDSA guidelines introduced a new 4-month drug-susceptible TB regimen that incorporates moxifloxacin as a core component. These landmark guideline shifts mean that moxifloxacin exposure among TB patients globally is set to expand dramatically. This drug replaces the ethambutol component of standard TB regiment commonly associated with optic neuritis as a side effect. Yet there is a critical blind spot: while individual studies have documented moxifloxacin’s QT interval-prolonging effects, no research has modeled what happens when this drug is rolled out to millions of patients who simultaneously …

Case Report: Pott’S Puffy Tumor, A Rare Complication Of Sinusitis, Je Seong Lee, Esai A. Hernandez, James Espinosa, Alan Lucerna

Rowan-Virtua Research Day

We report the case of an 11-year-old female who presented with lethargy and new left upper extremity weakness after a recent Emergency Department visit for fever, rhinorrhea, and head fullness, and was subsequently diagnosed with Pott’s Puffy Tumor(PPT). Pott’s Puffy Tumor is a frontal bone osteomyelitis with an frontal  subperiosteal abscess and represents a rare but potentially life-threatening complication of sinusitis. Prompt imaging and timely clinical intervention are critical, though variable presentations can make diagnosis challenging. This case highlights the importance of early recognition, appropriate imaging, and prompt surgical and antibiotic management given the PPT’s  strong association with intracranial complications. …

Trends And Disparities In Mortality Involving Epilepsy And Aspiration Pneumonia Among Older Adults In The United States, 1999–2020, Pranaya Gade, Jarvish Shah, Daarsh Goradia, Nishant Patel, Jamir Pitton Rissardo Md, Ana Leticia Fornari Caprara Md

Rowan-Virtua Research Day

Introduction: Epilepsy in older adults is frequently complicated by swallowing dysfunction, increasing the risk of aspiration pneumonia. Despite its clinical relevance, national trends and demographic disparities in deaths involving these conditions remain poorly characterized. Methods: We analyzed death certificate data from the CDC WONDER Multiple Cause of Death database (1999–2020) for individuals aged ≥65 years with epilepsy (ICD-10 G40, G41) and aspiration pneumonia (J69) listed as causes. Age-adjusted mortality rates (AAMRs) per 100,000 and annual percentage changes (APCs) with 95% confidence intervals were calculated using Joinpoint Regression. Analyses were stratified by sex, race/ethnicity, census region, and state. Results: From 1999 …

A Stemi That Wasn’T: Staphylococcus Aureus Bacteremia Presenting With Troponin Elevation And Pericardial Involvement, Taqi A. Khan, Kelsey A. Murray, James Espinosa, Alan Lucerna

Rowan-Virtua Research Day

A 75-year-old female presented to the emergency department (ED) with vomiting, weakness, and altered mental status. Initial evaluation revealed a markedly elevated troponin level and an electrocardiogram (ECG) demonstrating diffuse ST-segment depressions with relative ST elevation in lead aVR, prompting activation of a STEMI alert. After cardiology consultation, emergent catheterization was deferred. Computed tomography (CT) imaging demonstrated an anterior mediastinal fluid collection extending toward the pericardial space with a loculated pericardial effusion. Splenic infarctions were also identified. Blood cultures later grew Staphylococcus aureus. The patient was treated with broad-spectrum antibiotics and transferred to a tertiary care center for further management. …

Gram-Negative Infective Endocarditis : A Rare Case Of Escherichia Coli Pulmonic Valve Endocarditis, Caroline Nguyen, Philip Willsie, James Espinosa, Alan Lucerna

Rowan-Virtua Research Day

Infective endocarditis (IE) is most commonly caused by gram-positive organisms, while Escherichia coli accounts for less than 1% of reported cases. Pulmonic valve involvement is particularly rare, representing fewer than 2% of IE cases. We report a case of E. coli infective endocarditis involving the pulmonic valve complicated by spinal epidural abscess and ascending cholangitis in a patient with intravenous drug use. Blood cultures demonstrated persistent E. coli bacteremia, and further evaluation with echocardiography and MRI revealed pulmonic valve vegetations and epidural abscess. This case highlights the importance of evaluating persistent gram-negative bacteremia for infective endocarditis and metastatic infection.

Septic Pulmonary Emboli Revealing Tricuspid Valve Endocarditis In A Patient Presenting With Opioid Withdrawal Symptoms, Dong Shin, Dhara Patel, James Espinosa, Alan Lucerna

Rowan-Virtua Research Day

Septic embolism is a serious complication of systemic infection, most commonly arising from infective endocarditis. In patients with intravenous drug use (IVDU), right-sided endocarditis may lead to septic pulmonary emboli, often presenting with nonspecific or misleading symptoms. A 36-year-old female with recent intravenous fentanyl use presented with presumed opioid withdrawal, along with chest pain, dyspnea, and systemic symptoms. Initial evaluation revealed leukocytosis and bilateral pulmonary nodules on imaging. Computed tomography angiography demonstrated multiple cavitary and non-cavitary nodules consistent with septic pulmonary emboli. Blood cultures grew Staphylococcus aureus, and echocardiography revealed tricuspid valve vegetations with severe regurgitation. The patient required escalation …

Case Report: Acute Encephalopathy Revealing Severe Babesiosis With Lyme Co-Infection, Czarina Gebrelle K. Soriano, James Espinosa, Alan Lucer

Rowan-Virtua Research Day

Acute confusion in older adults is a common emergency department presentation with a broad differential diagnosis. Tick-borne illnesses can cause significant systemic disease and may present with nonspecific neurologic or constitutional symptoms, making early recognition challenging. Babesiosis is a tick-borne parasitic infection transmitted by Ixodes ticks and may occur concurrently with other infections such as Lyme disease, further complicating diagnosis. We present a case of a 67-year-old male who presented with acute confusion and was found to have concurrent babesiosis and Lyme disease. This case highlights the importance of maintaining a high index of suspicion for tick-borne co-infections in patients …

When Venom Isn’T The Only Threat: Roseomonas Mucosa Bacteremia Following A Snake Bite, Cyrus Davati, Kishan Patel, James A. Espinosa Md, Alan Lucerna

Rowan-Virtua Research Day

Snake bites in the ED  overall are rare in the United States. While mortality is low due to modern interventions, the sequelae - including tissue necrosis, digit amputation, and subsequent infection  remain a significant concern.  Here we present the case of a  presumptively non-venomous snakebite, which  was associated with R. mucosa bacteremia.

A Pain In The Neck: Lemierre Syndrome Presenting With Retropharyngeal Abscess, Clara Keum, Leo Midure

Rowan-Virtua Research Day

Lemierre syndrome is a rare but potentially life-threatening condition characterized by septic thrombophlebitis of the internal jugular vein following an oropharyngeal infection. It is most commonly associated with Fusobacterium necrophorum,  and typically begins with pharyngitis or deep neck space infections, which can extend into adjacent vascular structures. Retropharyngeal abscesses are among the deep neck infections that may predispose patients to this complication due to their proximity to the internal jugular vein and surrounding fascial planes.

Although Lemierre syndrome classically occurs in otherwise healthy adolescents and young adults, it can also develop in immunocompromised individuals or patients with complex medical conditions. …