171,717 results match your criteria: "University of Pennsylvania[Affiliation]"

Background: Combination therapy with enfortumab vedotin plus pembrolizumab (EV+P) is now the preferred first-line (1L) therapy for advanced urothelial carcinoma (aUC), but prognostic indicators for patients on 1L EV+P have not yet been described.

Patients And Methods: We conducted a retrospective cohort study of patients receiving 1L EV+P for aUC. We analyzed deidentified electronic health record data from the Flatiron Health database to identify adults with aUC who initiated EV+P between April 3, 2023 and December 31, 2024.

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Advances in Understanding the Pathogenesis of Clostridioides difficile Infection.

Infect Dis Clin North Am

September 2025

Department of Microbiology, Institute for Immunology and Immune Health, University of Pennsylvania Perelman School of Medicine, 303B Johnson Pavilion, 3610 Hamilton Walk, Philadelphia, PA 19104, USA.

Clostridioides difficile infection (CDI) remains a significant cause of infectious colitis in the United States. Susceptibility to CDI is associated with perturbation of the gut microbiota, the indigenous microbes in the gastrointestinal tract. Upon colonization, the production of toxins and the ability to produce spores for environmental dissemination contribute to C difficile pathogenicity.

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Objectives: To quantify intraoperative pulmonary arterial catheter (PAC) use during cardiac surgery and identify hospital-, anesthesiologist-, and patient-level factors associated with PAC utilization.

Design: A cross-sectional, observational study using generalized logistic mixed models to examine variations in PAC use.

Setting: Fifty-three US academic hospitals participating in the Multicenter Perioperative Outcomes Group (MPOG) national registry PARTICIPANTS: 145,343 adult patients undergoing cardiac surgery between January 1, 2016, and December 31, 2022.

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Background: Cortico-cortical evoked potentials (CCEPs), elicited via single-pulse electrical stimulation, are used to map brain networks. These responses comprise early (N1) and late (N2) components, which reflect direct and indirect cortical connectivity. Reliable identification of these components remains difficult due to substantial variability in amplitude, phase, and timing.

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Spillover of SARS-CoV-2 to Domestic Dogs in COVID-19-Positive Households: A One Health Surveillance Study.

Virus Res

September 2025

Pennsylvania Department of Agriculture, Pennsylvania Veterinary Laboratory, Harrisburg, PA 17110, USA. Electronic address:

The severe acute respiratory syndrome coronavirus-2 (SARS-CoV-2) is capable of infecting multiple species through human-to-animal spillover. Human to animal spillovers have been documented both in domestic and wild animal species. Due to close contact in shared households, pet dogs may be at increased risk for contracting the SARS-CoV-2 virus from infected individuals in the same household.

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Purpose: We report outcomes of repeat stereotactic radiosurgery (rSRS) to sites of tumor progression following initial SRS. Additionally, we sought to determine if, at the time of recurrence following initial SRS, surgical resection of the tumor followed by SRS (surgery + rSRS) provided benefit compared to rSRS alone.

Methods: We retrospectively reviewed patients treated with rSRS for local recurrence after initial SRS.

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Objective: Rare diseases collectively affect approximately 30 million people in the United States. Despite advances in genomic medicine, early diagnosis is challenging because of limited awareness of, accessibility to, and disparities in health care resources. We assessed the real-world experiences of patients with rare diseases in Pennsylvania and evaluated the effect of delayed diagnosis on psychosocial and financial burdens.

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Association of preoperative nocturnal hypoxaemia nadir and fentanyl ventilatory sensitivity in children with obstructive sleep apnoea undergoing general anaesthesia: multicentre clinical cohort study.

Br J Anaesth

September 2025

Department of Anaesthesia and Pain Management, Perth Children's Hospital, Perth, WA, Australia; Division of Emergency Medicine, Anaesthesia and Pain Medicine, The University of Western Australia, Perth, WA, Australia; Institute for Paediatric Perioperative Excellence, The University of Western Austr

Background: Obstructive sleep apnoea (OSA) has been thought to increase the risk of respiratory depression from opioids. The primary aim of this study was to assess whether preoperative hypoxaemia by sleep study pulse oximetry imparts greater opioid sensitivity.

Methods: A multicentre observational cohort study with in-cohort dose randomisation was performed in children 2-8 yr of age with OSA undergoing adenotonsillectomy.

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The Story of Electronic Fetal Monitoring - A Cautionary Tale for Radiologists.

Acad Radiol

September 2025

Associate Professor of Radiology, University of Pennsylvania, Philadelphia, PA 19146 (S.J.). Electronic address:

Rationale And Objectives: To understand how an imperfect surrogate can lead to defensive medicine.

Materials And Methods: Historical analysis was performed on electronic fetal monitoring.

Results: Electronic Fetal Monitoring is an example of a flawed surrogate.

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Objectives: Strategies to reduce Achilles tendon forces during running may be beneficial for injury prevention. Increasing ground contact time could reduce Achilles tendon forces during running but may also elicit changes in cadence that could offset these reductions. The purpose of this study was to determine if changing ground contact time altered Achilles tendon forces during running, with both a fixed and a free cadence.

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Flow disruptions during delivery room intubation of neonates with congenital diaphragmatic hernia.

Resuscitation

September 2025

Department of Pediatrics, Division of Neonatology, The Children's Hospital of Philadelphia and The University of Pennsylvania Perelman School of Medicine, Division of Neonatology, 2(nd) Floor, Main Building, 3401 Civic Center Boulevard, Philadelphia, PA 19104, USA.

Aim: Flow disruptions (FDs) are deviations in the progression of care that compromise safety and efficiency of a specific process. Neonatal intubation is a life-saving high-risk procedure required for delivery room (DR) management of neonates with moderate to severe congenital diaphragmatic hernia (CDH). This study evaluated FDs during DR intubation of neonates with CDH and their association with process and outcome measures.

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Inactivation of primate cortex reveals inductive biases in visual learning.

Curr Biol

August 2025

Department of Neurology and Neurosurgery, Montreal Neurological Institute, McGill University, Montreal, QC H3A 2B4, Canada.

Humans and other primates are capable of learning to recognize new visual stimuli throughout their lifetimes. Most theoretical models assume that such learning occurs through the adjustment of the large number of synaptic weights connecting the visual cortex to downstream decision-making areas. While this approach to learning can optimize performance on behavioral tasks, it can also be costly in terms of time and energy.

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A comparative study of patient and provider priorities for cesarean delivery anesthesia care.

Int J Obstet Anesth

August 2025

Department of Anesthesiology and Perioperative Medicine, University of Pittsburgh School of Medicine, Pittsburgh, PA, United States. Electronic address:

Introduction: Patient priorities for anesthesia during a cesarean delivery are not well defined. Previous studies have explored patient preferences for cesarean delivery anesthesia but have not evaluated patient-centered endpoints unrelated to the physical experience which are known to be important to patients' birth experiences, such as being treated with respect, communication, and emotional support. The purpose of this study was to compare patients' and providers' priorities for cesarean delivery anesthesia care.

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Background: Catheter ablation of scar-related interatrial septal atrial tachycardias (IAS-ATs) is challenging and can be refractory to conventional unipolar radiofrequency catheter ablation (RFCA).

Aim: This multicenter study investigated the safety and efficacy of bipolar radiofrequency catheter ablation (Bi-RFCA) in patients with IAS-AT refractory to conventional unipolar RFCA.

Methods: Consecutive patients with scar-related IAS-AT refractory to conventional unipolar RFA across three electrophysiological centers were included in the study.

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Missing the Target: Radiation, "Toxicity," and Public Fear.

Int J Radiat Oncol Biol Phys

September 2025

Department of Radiation Oncology, Hospital of the University of Pennsylvania, Perelman School of Medicine, Philadelphia, Pennsylvania.

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Background: Light therapy (LT) in Parkinson's disease improves sleep. Specific LT parameters require further study, including optimal frequency.

Objectives: We aimed to determine if once- or twice-daily bright white light therapy (BWLT) improves sleep.

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Background: Cisplatin is a commonly used chemotherapeutic across numerous cancer types that can cause neurotoxicities in patients, including peripheral sensory neuropathy, tinnitus, hearing loss, and vertigo.

Objective: We aimed to evaluate, for the first time, how genetic ancestry impacts cisplatin-induced neurotoxicities and if disparities are related to population differences in allele frequency.

Methods: In a cohort of cisplatin-treated testicular cancer survivors, relationships between genetic ancestry and neurotoxicities, medications, and lifestyle factors were assessed using logistic regression and Kruskal-Wallis tests and multiple pairwise comparisons using the Wilcoxon rank-sum test (Benjamini-Hochberg adjustment).

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Background: Incarcerated individuals have a disproportionate burden of cardiovascular risk factors. However, there is a paucity of data focusing on cardiovascular death and access to adequate health care among incarcerated individuals.

Methods: We used the Mortality in Correctional Institutions database from the US Bureau of Justice Statistics to examine cardiovascular deaths in all state prisons from 2001 to 2019, health care provision, as well as differences in these measures between racial and ethnic groups.

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