228 results match your criteria: "Keck School of Medicine University of Southern California[Affiliation]"

Objective: To assess the carbon footprint, accessibility, and diagnostic performance of an expedited 'One-Stop' prostate cancer (PCa) diagnostic pathway.

Materials And Methods: A total of 1083 consecutive patients undergoing magnetic resonance imaging (MRI) followed by transrectal ultrasound fusion-guided prostate biopsy (PBx) were identified from a prospective database. The patients were divided according to the diagnostic pathway: One-Stop, with MRI and same-day PBx (3 hours apart), or Standard, with MRI followed by a second visit for PBx.

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Objective: To identify risk factors for clinically-important drowning-associated lung injury (ciDALI) in children.

Study Design: This was a cross-sectional study of children (0 through18 years) who presented to 32 pediatric emergency departments (EDs) from 2010 through 2017. We reviewed demographics, comorbidities, prehospital data, chest radiographs reports, and ED course from emergency medical services, medical, and fatality records.

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The effect of chelation on bone Pb stores in Pb poisoned children.

J Expo Sci Environ Epidemiol

December 2024

School of Health Sciences, Purdue University, West Lafayette, IN, USA.

Background: Lead exposure remains a key problem for children during development. One treatment for lead poisoning is chelation - a topic that remains controversial with varied results. Bone lead serves as a marker of total body burden of lead and encompasses between 60-90% of lead storage in children.

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Acute cutaneous presentations in immunocompromised patients demand careful and thorough evaluation. Here, we present the case of a 26-year-old female with acute myeloid leukaemia undergoing salvage chemotherapy, who developed an acutely expanding subcutaneous mass starting on the frontotemporal scalp to the angle of the jaw. Histopathologic evaluation was consistent with sclerosing fat necrosis with overlying psoriasiform spongiotic dermatitis.

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Article Synopsis
  • Research on human cerebellar development has been limited due to the absence of a cell-based model that accurately reflects the cellular diversity and functions of the human cerebellum.
  • The authors introduce a new protocol for creating human cerebellar organoids (hCerOs) from pluripotent stem cells, which successfully replicate key features of the fetal cerebellum and allow for the differentiation of major neurons like granule and Purkinje cells within a month.
  • This hCerO model provides a valuable tool for studying cerebellar development and related diseases, enabling various assays and long-term cell survival and maturation, making it accessible for technicians with cell culture skills.
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Objective: The aim of this study is to identify characteristics of children for whom a developmental-behavioral pediatrician's (DBP) diagnostic impressions of autism spectrum disorder (ASD) or non-ASD were changed by Autism Diagnostic Observation Schedule (ADOS) results.

Method: A prospective study of children 1½ to <6 years consecutively referred to 8 sites for possible ASD. Cognitive/developmental, language, and adaptive testing varied, as each site followed its usual clinical approach.

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Chorioamnionitis and Two-Year Outcomes in Infants with Hypoxic-Ischemic Encephalopathy.

J Pediatr

December 2024

Division of Neonatology, Department of Pediatrics, Fetal Neonatal Institute, Children's Hospital Los Angeles, Keck School of Medicine University of Southern California, Los Angeles, CA.

Objective: To determine if chorioamnionitis is associated with an increased risk of adverse 2-year outcomes among infants with hypoxic-ischemic encephalopathy (HIE).

Study Design: This cohort study included all infants with moderate to severe HIE treated with therapeutic hypothermia and enrolled on the High-dose Erythropoietin for Asphyxia and Encephalopathy Trial. Clinical chorioamnionitis (CC) was defined as a diagnosis made by a treating obstetrician and histologic chorioamnionitis (HC) was defined as placental inflammation observed on histology.

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Background: Impaired cardiac function is associated with cognitive impairment and brain imaging features of aging. Cardiac arrhythmias, including atrial fibrillation, are implicated in clinical and subclinical brain injuries. Even in the absence of a clinical diagnosis, subclinical or prodromal substrates of arrhythmias, including an abnormally long or short P-wave duration (PWD), a measure associated with atrial abnormalities, have been associated with stroke and cognitive decline.

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Cardiovascular Adaptation in Normal Pregnancy With 2D and 3D Echocardiography, Speckle Tracking, and Radial Artery Tonometry.

JACC Adv

November 2024

The Cardiac Non Invasive Laboratories, Division of Cardiology, Department of Medicine, Keck School of Medicine, University of Southern California, Los Angeles, California, USA.

Background: Comprehensive cardiovascular assessment in normal pregnancy using advanced techniques has limited data.

Objectives: The aim of the study was to evaluate cardiovascular changes in normal pregnancy using two-dimensional/three-dimensional (3D) echo and applanation tonometry in healthy pregnant women.

Methods: Two-dimensional/Doppler, speckle tracking strain, 3D echocardiography, and vascular compliance by applanation tonometry were performed during the first, second, and third trimesters and postpartum.

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Genetic contributions to human cortical structure manifest pervasive pleiotropy. This pleiotropy may be harnessed to identify unique genetically-informed parcellations of the cortex that are neurobiologically distinct from functional, cytoarchitectural, or other cortical parcellation schemes. We investigated genetic pleiotropy by applying genomic structural equation modeling (SEM) to map the genetic architecture of cortical surface area (SA) and cortical thickness (CT) for 34 brain regions recently reported in the ENIGMA cortical GWAS.

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Article Synopsis
  • The study aimed to identify predictors related to the loss and recovery of smell and taste in individuals who had previously contracted COVID-19.
  • Out of 3,844 respondents, over 51% experienced a loss of smell and 49% a loss of taste, with high recovery rates reported for both senses.
  • Factors influencing smell and taste loss included being younger, female, using e-cigarettes, and having a higher BMI, while certain ethnicities also impacted recovery likelihood, providing valuable insights for clinical counseling.
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Retinal pigment epithelial (RPE) cells are exclusive to the retina, critically multifunctional in maintaining the visual functions and health of photoreceptors and the retina. Despite their vital functions throughout lifetime, RPE cells lack regenerative capacity, rendering them vulnerable which can lead to degenerative retinal diseases. With advancements in stem cell technology enabling the differentiation of functional cells from pluripotent stem cells and leveraging the robust autocrine and paracrine functions of RPE cells, extracellular vesicles (EVs) secreted by RPE cells hold significant therapeutic potential in supplementing RPE cell activity.

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Background: Electronic cigarettes have gained popularity as a nicotine delivery system, which has been recommended by some as an aid to help people quit traditional smoking. The potential long-term effects of vaping on the cardiovascular system, as well as how their effects compare with those from standard cigarettes, are not well understood. The intrinsic frequency (IF) method is a systems approach for analysis of left ventricle and arterial function.

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Article Synopsis
  • - This study reviews the clinical experiences of four male patients with bilateral vocal fold motion impairment (BVFMI) caused by diffuse idiopathic skeletal hyperostosis (DISH) and highlights the range of symptoms experienced, from severe breathing issues to voice problems.
  • - Two patients underwent surgery for osteophyte removal in the cervical spine, resulting in improved vocal fold mobility and better breathing and voice quality, while the other two opted for conservative treatment as their symptoms were manageable.
  • - The findings suggest that both surgical and non-surgical options can be effective for BVFMI, emphasizing the need for more research into the causes and treatment outcomes for this condition.
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Stage IC grade 1 endometrioid adenocarcinoma of the ovary: assessment of post-operative chemotherapy de-escalation.

Int J Gynecol Cancer

October 2024

Division of Gynecologic Oncology, Department of Obstetrics and Gynecology, University of Southern California, Los Angeles, California, USA

Article Synopsis
  • - This study looked at whether patients with stage IC grade 1 endometrioid ovarian carcinoma benefit from post-operative chemotherapy, using data from the National Cancer Institute's SEER program, involving 1207 patients treated between 2007 and 2020.
  • - The findings showed that for patients with grade 1 tumors, there was no significant difference in 5-year survival rates (over 90%) whether or not they received chemotherapy, but those who didn't have nodal evaluation had significantly lower survival rates compared to those who did.
  • - The implications suggest that while chemotherapy may not be necessary for grade 1 tumors with nodal evaluation, it becomes crucial for patients without such evaluations, indicating a need for tailored treatment approaches based on
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Asthma, the most common chronic disease in children, affects more than 4 million children in the United States, disproportionately affecting those who are economically disadvantaged and racial and ethnic minorities. Studies have shown that the racial and ethnic disparities in asthma outcomes can be largely explained by environmental, socioeconomic and other social determinants of health (SDoH). Utilizing new approaches to stratify disease severity and risk, which focus on the underlying SDoH that lead to asthma disparity, provides an opportunity to disentangle race and ethnicity from its confounding social determinants.

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Article Synopsis
  • Basal cell carcinoma (BCC) is the most prevalent skin cancer in the U.S., particularly affecting Non-Hispanic Whites (NHW), but cases among Hispanics are on the rise, prompting this study to explore differences between these groups.
  • A retrospective analysis was conducted on 151 BCC samples from Hispanic and NHW patients at a medical center over two years, considering various patient and tumor characteristics.
  • Results indicated that Hispanic patients had a higher incidence of head and neck tumors and pigmented BCC, with significant differences in demographics and tumor histology compared to NHW patients.
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Drug reaction with eosinophilia and systemic symptoms (DRESS) is a severe cutaneous adverse reaction characterised by fever, lymphadenopathy, morbilliform rash, haematologic abnormalities, and multiorgan involvement. Herein, we describe a 32-year-old female presenting with a 9-day history of facial oedema, cervical and inguinal lymphadenopathy, and a pruritic rash comprised of vesicles and pustules on her face, trunk, and extremities. Her only medications were valproate, which she had been taking for several years, and levetiracetam, which was initiated 41 days prior to rash onset.

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Article Synopsis
  • Echogenicity of the carotid arterial wall, indicated by IM-GSM values, is a new marker for subclinical atherosclerosis, where lower values suggest more lipid buildup; our study tracked these values from childhood into adulthood.
  • In our research involving 240 participants, IM-GSM decreased significantly from an average of 108.2 in childhood to 75.6 in adulthood, with various factors such as weight, blood pressure, and parental education influencing these levels.
  • The study concludes that a decrease in IM-GSM with age highlights the importance of maintaining a healthy weight and blood pressure in children to possibly prevent future atherosclerosis.
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Background: We tested whether snus marketing with modified risk tobacco product (MRTP) claims: (a) promotes accurate knowledge about snus's health effects in young adults and (b) encourages use intentions in only those who use combustible tobacco without attracting other young adult populations.

Methods: A randomised between-subjects experiment was embedded in a 2020 web survey of participants from Los Angeles (aged 19-23 years). Participants viewed mass-marketed snus advertising materials with (n=1212) vs without (n=1225) US Food and Drug Administration-authorised MRTP claims.

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Background: This study investigated the association of American Heart Association's cardiovascular health guidelines Life's Essential 8 (LE8) and Life's Simple 7 (LS7) with carotid artery outcomes among young adults.

Methods And Results: This cross-sectional study included 240 young adults (age 24.2±1.

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Article Synopsis
  • Acute ischemic stroke (AIS) from distal medium vessel occlusions (DMVOs) is common, and while IV thrombolysis is standard, mechanical thrombectomy (MT) is becoming more prevalent for treatment.
  • A study reviewed data from 1708 DMVO patients treated with MT, finding that 8.7% experienced symptomatic intracerebral hemorrhage (sICH) and identified several risk factors, including older age, distal occlusion location, prior antiplatelet use, lower ASPECT scores, higher pre-op blood glucose, more passes during MT, and successful recanalization status.
  • Understanding these risk factors can help healthcare providers better assess and manage the risk of sICH in patients undergoing MT for DM
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