24,661 results match your criteria: "University of Pittsburgh medical Center[Affiliation]"

Background: As the population ages, the number of octogenarians with pancreatic ductal adenocarcinoma (PDAC) continues to rise. Morbidity and mortality following pancreatectomy have improved owing to safer surgery and better chemoradiation regimens. This study compares the outcomes and multimodality utilization in octogenarians (≥80 years) who underwent pancreaticoduodenectomy (PD) for PDAC, with a younger cohort.

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Background: Prior studies indicate that 1% to 4% of Epstein-Barr virus (EBV)-seronegative recipients of EBV-seropositive donor (EBV D+/R-) kidneys develop posttransplant lymphoproliferative disorder (PTLD). However, these estimates are based on limited data that lack granularity.

Objective: To determine the associations between pretransplant EBV D+/R- and recipient EBV-seropositive status (R+) and the outcomes of PTLD and graft and patient survival among adult kidney transplant recipients.

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The somato-cognitive action network (SCAN) consists of three nodes interspersed within Penfield's motor effector regions. The configuration of the somato-cognitive action network nodes resembles the one of the 'plis de passage' of the central sulcus: small gyri bridging the precentral and postcentral gyri. Thus, we hypothesize that these may provide a structural substrate of the somato-cognitive action network.

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Based on the fact that beta-lactam antibiotics demonstrate time-dependent killing, different dosing strategies have been implemented to increase the time that free (f) (unbound) antibiotic concentrations remain above the Minimal Inhibitory Concentration (MIC), including prolonged and continuous infusion. Multiple studies have been performed that compared continuous with traditional intermittent infusion to improve outcomes in patients with severe sepsis and/or septic shock. These studies have yielded inconsistent results for patients as measured by clinical response to treatment and mortality due to heterogeneity of included patients, pathogens, dosing strategies and the absence of Therapeutic Drug Monitoring (TDM).

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Background: Ankle fractures continue to increase in incidence and severity in an older, more challenging geriatric population. Medial malleolus fixation with partially threaded cancellous 4.0-mm screws, a common fixation method, has been shown to fail due to pullout strength.

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Significance: Maximal safe resection of brain tumors can be performed by neurosurgeons through the use of accurate and practical guidance tools that provide real-time information during surgery. Current established adjuvant intraoperative technologies include neuronavigation guidance, intraoperative imaging (MRI and ultrasound), and 5-ALA for fluorescence-guided surgery.

Aim: We have developed intraoperative Raman spectroscopy as a real-time decision support system for neurosurgical guidance in brain tumors.

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Background: The accessibility and outcomes of cyclin-dependent kinase 4 and 6 inhibitors (CDKi) in metastatic breast cancer (MBC) according to demographic factors are unknown.

Research Design And Methods: Retrospective review of patients with ER+ MBC prescribed first-line CDKi therapy from January 2015 through December 2022. Abstraction included time from CDKi prescription to drug initiation (TTI), time from CDKi initiation to progression (TTP), time from CDKi initiation to death or 6/30/2022, and variables (age, race, partner status, insurance type, BMI, number of comorbidities).

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Functional magnetic resonance imaging (fMRI) has dramatically advanced non-invasive human brain mapping and decoding. Functional near-infrared spectroscopy (fNIRS) and high-density diffuse optical tomography (HD-DOT) non-invasively measure blood oxygen fluctuations related to brain activity, like fMRI, at the brain surface, using more-lightweight equipment that circumvents ergonomic and logistical limitations of fMRI. HD-DOT grids have smaller inter-optode spacing (~ 13 mm) than sparse fNIRS (~ 30 mm) and therefore provide higher image quality, with spatial resolution ~ 1/2 that of fMRI, when using the several source-detector distances (13-40 mm) afforded by the HD-DOT grid.

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Human papillomavirus (HPV) underpins approximately 90% of squamous cell carcinomas (SCC) of the anus and perianal region. These tumors usually arise in association with precursor lesions such anal intraepithelial neoplasia/ high-grade squamous intraepithelial lesion (AIN 3/ HSIL), whereas a small subset of HPV-negative cancers may harbor mutations in TP53. Recently, vulvar lesions termed differentiated exophytic vulvar intraepithelial lesion/vulvar acanthosis with altered differentiated (DEVIL/VAAD) have been recognized as HPV-independent, TP53 wild-type precursors for vulvar carcinoma; however, analogous anal lesions have not been described.

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Isolated subsegmental pulmonary embolism identification based on international classification of diseases (ICD)-10 codes and imaging reports.

Thromb Res

January 2025

Thrombosis Research Group, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA; YNHH/Yale Center for Outcomes Research and Evaluation (CORE), New Haven, CT, USA; Division of Cardiovascular Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA. Electronic address:

Background: Isolated subsegmental pulmonary embolism (issPE) is a commonly encountered diagnosis. Although the International Classification of Diseases (ICD)-10 codes are used for research, their validity for identifying issPE is unknown. Moreover, issPE diagnosis is challenging, and the findings from radiology reports may conflict with those from expert radiologists.

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Targeting EBV Episome for Anti-Cancer Therapy: Emerging Strategies and Challenges.

Viruses

January 2025

Program in Microbiology and Immunology, University of Pittsburgh, Pittsburgh, PA 15219, USA.

As a ubiquitous human pathogen, the Epstein-Barr virus (EBV) has established lifelong persistent infection in about 95% of the adult population. The EBV infection is associated with approximately 200,000 human cancer cases and 140,000 deaths per year. The presence of EBV in tumor cells provides a unique advantage in targeting the viral genome (also known as episome), to develop anti-cancer therapeutics.

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Analysis of Calcium Patterns in the Thoracic Aorta and Clinical Outcomes of TAVR Patients Presenting with Porcelain Aorta.

J Clin Med

January 2025

Department of Cardiovascular Surgery, Institute Insure, German Heart Center Munich, School of Medicine & Health, Technical University of Munich, Lazarettstrasse 36, 80636 Munich, Germany.

: In the presence of porcelain aorta (PA), transcatheter aortic valve replacement (TAVR) has become a class I therapeutic indication for the treatment of severe aortic valve stenosis. To date, few studies have analyzed the clinical outcomes of TAVR in PA patients. We aim to analyze the calcification patterns of the thoracic aorta in PA patients and to evaluate their clinical implications for TAVR procedures.

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: Postoperative infection following anterior cruciate ligament reconstruction (ACLR) is a rare yet severe complication that can compromise patient outcomes, leading to prolonged recovery, graft failure, and knee dysfunction. Although infection rates are reported to be less than 2%, it remains essential to implement strategies to reduce infection risk and improve surgical outcomes. : This review explores current evidence on the prevention of infections in ACLR, emphasizing the importance of timely antibiotic prophylaxis and vancomycin presoaking of grafts, which has been associated with a substantial reduction in infection rates.

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Background: Acute promyelocytic leukemia (APL) is characterized by abnormal promyelocytes and t(15;17)(q24;q21) . Rarely, patients may have cryptic or variant rearrangements. All-trans retinoic acid (ATRA)/arsenic trioxide (ATO) is largely curative provided that the diagnosis is established early.

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The rapid growth of unconventional natural gas development (UNGD), also known as hydraulic fracturing, has raised concerns of potential exposures to hazardous chemicals. Few studies have examined the risk of childhood cancer from exposure to UNGD. A case-control study included 498 children diagnosed with leukemia, lymphoma, central nervous system neoplasms, and malignant bone tumors during the period 2010-2019 identified through the Pennsylvania Cancer Registry.

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Balancing the Scalpel and the Heart: A Neurosurgeon's Guide to Empathy.

World Neurosurg

January 2025

Neurosurgery Department, Hamad General Hospital; Department of Clinical Academic Sciences, College of Medicine, Qatar University, Doha, Qatar; Department of Neurological Sciences, Weill Cornell Medicine, Doha, Qatar.

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Introduction: Unplanned, delayed readmissions (>30 ds) following oncologic surgeries can increase mortality and care costs and affect hospital quality indices. However, there is a dearth of literature on rectal cancer surgery. Hence, we aimed to assess the risk factors associated with delayed readmissions following rectal cancer surgery to improve targeted interventions, patient outcomes, and quality indices.

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Significance: Decoding naturalistic content from brain activity has important neuroscience and clinical implications. Information about visual scenes and intelligible speech has been decoded from cortical activity using functional magnetic resonance imaging (fMRI) and electrocorticography, but widespread applications are limited by the logistics of these technologies.

Aim: High-density diffuse optical tomography (HD-DOT) offers image quality approaching that of fMRI but with the silent, open scanning environment afforded by optical methods, thus opening the door to more naturalistic research and applications.

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A proteogenomic analysis of the adiposity colorectal cancer relationship identifies GREM1 as a probable mediator.

Int J Epidemiol

December 2024

International Agency for Research on Cancer (IARC/WHO), Nutrition and Metabolism Branch, Lyon, France.

Background: Adiposity is an established risk factor for colorectal cancer (CRC). The pathways underlying this relationship, and specifically the role of circulating proteins, are unclear.

Methods: Utilizing two-sample univariable Mendelian randomization (UVMR), multivariable Mendelian randomization (MVMR), and colocalization, based on summary data from large sex-combined and sex-specific genetic studies, we estimated the univariable associations between: (i) body mass index (BMI) and waist-hip ratio (WHR) and overall and site-specific (colon, proximal colon, distal colon, and rectal) CRC risk, (ii) BMI and WHR and circulating proteins, and (iii) adiposity-associated circulating proteins and CRC risk.

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Background: Operative mortality for high-grade liver injury (HGLI) remains 42% to 66%, with near-universal mortality after retrohepatic caval injury. The objective of this study was to evaluate mortality and complications of operative and nonoperative management (OM and NOM) of HGLI at our institution, characterized by a trauma surgery-liver surgery collaborative approach to trauma care.

Methods: This was an observational cohort study of adult patients (age ≥16) with HGLI (The American Association for Surgery of Trauma (AAST) grades IV and V) admitted to an urban level I trauma center from January 2010 to November 2021.

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Prosthetic Valve Endocarditis - A Case Report and Literature Analysis.

Hosp Pharm

January 2025

Division of General Internal Medicine, Department of Medicine, Center for Research in Healthcare, University of Pittsburgh, Pittsburgh PA, USA.

We describe a case of a 67-year-old man with bioprosthetic aortic valve endocarditis secondary to , a rare Gram-negative plant pathogen. The initial source was assumed to be due to soil exposure. The patient was successfully managed with ceftriaxone following aortic valve replacement.

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Intraoperative neuropsychological testing (IONT) is a sophisticated method of cognitive mapping during the resection of brain tumors in eloquent areas. Direct electrical stimulation during awake craniotomy is routinely utilized for mapping basic language and sensorimotor function, but the utilization of IONT offers an individualized approach that can yield real-time, comprehensive feedback on various cognitive functions, allowing for a tailored and more extensive tumor resection. In this video, the authors present the case of a 41-year-old male undergoing re-resection for a recurrent right temporal astrocytoma in which IONT played a crucial role.

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The Safety Profile of Amiodarone Among Older Adults (age ≥ 75 years): A Pharmacovigilance Study from the FDA Data.

Am J Med

January 2025

The Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel; Sheba Medical Center, Ramat-Gan, Israel; Division of Geriatric Medicine, University of Pittsburgh Medical Center, Pittsburgh, PA, USA. Electronic address:

Background: Amiodarone is a widely used antiarrhythmic agent with significant toxicities and drug interactions more likely to affect older adults. Nevertheless, data regarding amiodarone safety in this population are limited.

Methods: We conducted a retrospective analysis of FDA Adverse Event Reporting System (FAERS) data from 2003 to 2024 .

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