Publications by authors named "William French"

Previous studies have documented longer treatment times and worse outcomes for patients with ST-elevation myocardial infarction (STEMI) who underwent primary percutaneous coronary intervention (PCI) during the COVID-19 pandemic. The objective of the present study was to evaluate the impact of the COVID-19 pandemic on treatment times and outcomes for patients with STEMI who underwent primary PCI within a regional system of care. This was a retrospective study using data from the Los Angeles County Emergency Medical Services Agency.

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Anxiety disorders are among the most diagnosed mental health problems in children and adolescents. Without intervention, anxiety disorders in youth are chronic, debilitating, and amplify risk of negative sequelae. Youth with anxiety present to primary care frequently and often families choose to first discuss mental health concerns with their pediatricians.

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Objective: To describe our technique for performing gender affirming graft only vaginoplasty.

Methods: In graft only vaginoplasty, penile skin is used only for the external genitals, and the entire vaginal canal is created from a full thickness skin graft. The inner scrotum is excised and used as a skin graft to line the vaginal canal.

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The American Heart Association Mission: Lifeline program objectives are to improve the quality of care and outcomes for patients with ST-segment-elevation myocardial infarction. Every minute of delay in treatment adversely affects 1-year mortality. Transfer of patients safely and timely to hospitals with primary percutaneous coronary intervention capability is needed to improve outcomes.

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Importance: Recognizing the association between timely treatment and less myocardial injury for patients with ST-segment elevation myocardial infarction (STEMI), US national guidelines recommend specific treatment-time goals.

Objective: To describe these process measures and outcomes for a recent cohort of patients.

Design, Setting, And Participants: Cross-sectional study of a diagnosis-based registry between the second quarter of 2018 and the third quarter of 2021 for 114 871 patients with STEMI treated at 648 hospitals in the Get With The Guidelines-Coronary Artery Disease registry.

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Simple prostatectomy (SP) and laser enucleation of the prostate (LEP) are treatments for symptomatic benign prostatic hyperplasia (BPH) in men with large glands (e.g., >80 g).

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Objective: To examine the effects of care fragmentation, or the engagement of different health care systems along the continuum of care, on patients with urinary stone disease.

Methods: All-payer data from the 2016 Healthcare Cost and Utilization Project (HCUP) State Databases from Florida (FL) and New York (NY) were used to identify a cohort of adult patients with an emergency department visit for a diagnosis of urolithiasis, who subsequently re-presented to an index or non-index hospital for renal colic and/or urological intervention. Patient demographics, regional data, and procedural information were collected and 30-day episode-based costs were calculated.

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Rapid prehospital identification of patients with ST-elevation myocardial infarction (STEMI) is a critical step to reduce time to treatment. Broad screening with field 12-lead ECGs can lead to a high rate of false positive STEMI activations due to low prevalence. One strategy to reduce false positive STEMI interpretations is to limit acquisition of 12-lead ECGs to patients who have symptoms strongly suggestive of STEMI, but this may delay care in patients who present atypically and lead to disparities in populations with more atypical presentations.

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The introduction of Mission: Lifeline significantly increased timely access to percutaneous coronary intervention for patients with ST-segment-elevation myocardial infarction (STEMI). In the years since, morbidity and mortality rates have declined, and research has led to significant developments that have broadened our concept of the STEMI system of care. However, significant barriers and opportunities remain.

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Within Emergency Medical Systems (EMS) regional systems, there may be significant differences in the approach to patient care despite efforts to promote standardization. Identifying hospital-level factors that contribute to variations in care can provide opportunities to improve patient outcomes. The purpose of this analysis was to evaluate variation in post-cardiac arrest care within a large EMS system and explore the contribution of hospital-level factors.

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Non-obstructive, chronic flank pain in urologic patients can be a challenging problem to manage. In this series, we examined the efficacy of celiac plexus blockade in providing pain relief and reducing opiate use in 14 adult urology patients with non-obstructive flank pain for > 1 year. Demographic, clinical, and procedural variables were collected from the medical record for retrospective analysis.

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Background: Previous studies have observed poorer outcomes in females with myocardial infarction, but older age and lower use of percutaneous coronary intervention in females are factors that potentially explain the worse outcome. This study sought to determine if female sex is an independent factor of ischemic and bleeding outcomes in non-ST-segment-elevation acute coronary syndrome treated with a systematic invasive approach.

Methods: The TAO trial (Treatment of Acute Coronary Syndrome With Otamixaban) randomized patients with non-ST-segment-elevation acute coronary syndrome treated invasively to heparin plus eptifibatide versus otamixaban.

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Background Despite the benefits of targeted temperature management (TTM) for out-of-hospital cardiac arrest), implementation within the United States remains low. The objective of this study was to evaluate the prevalence and factors associated with TTM use in a large, urban-suburban regional system of care. Methods and Results This was a retrospective analysis from the Los Angeles County regional cardiac system of care serving a population of >10 million residents.

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Background: Previous studies published before the era of systematic early invasive strategy have reported a higher mortality in non-ST-segment elevation myocardial infarction patients with heart failure. The aim of our study was to compare the clinical characteristics, outcomes and causes of death of patients according to their heart failure status at admission in a large non-ST-segment elevation myocardial infarction population with planned early invasive management.

Methods: We performed a post-hoc analysis of the Treatment of Acute Coronary Syndrome with Otamixaban randomised trial which included non-ST-segment elevation myocardial infarction patients with systematic coronary angiography within 72 h.

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Dissemination of misinformation through social media is a major societal issue. Bladder cancer is the second most common urological cancer in the world, but there are limited data on the quality of bladder cancer information on social networks. Our objective was to characterize the quality of information and presence of misinformation about bladder cancer on YouTube, the most commonly used social media platform.

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Background: Attention-deficit/hyperactivity disorder (ADHD) is present in 25%-50% of parents of children with ADHD, compromising parenting and child behavioral treatment. Efforts to treat multiplex ADHD families have not compared behavioral parenting interventions to parent psychopharmacology without confounds of other treatments. This report describes a pilot early intervention study directly comparing parent lisdexamfetamine dimesylate (LDX) to behavioral parent training (BPT) in families in which the mother had currently untreated ADHD and the young child displayed ADHD symptoms.

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Over the past decade, despite the controversies surrounding prostate cancer screening, significant refinements have improved its application. PSA screening, although it has been questioned, appears to confer a mortality benefit and remains the most effective way to identify the possible presence of prostate cancer. Methods to improve the specificity of PSA screening and limit overdiagnosis of indolent cancers, including risk-stratified screening regimens, are currently being utilized.

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Assessing thromboembolic risk is crucial for proper management of patients with atrial fibrillation. Left atrial volume is a promising predictor of cardiac thrombosis. To determine whether left atrial volume can predict left atrial appendage thrombus in patients with atrial fibrillation, we conducted a prospective study of 73 patients.

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Hypothesis: Emergency Medical Services (EMS) systems have developed protocols for prehospital activation of the cardiac catheterization laboratory for patients with suspected ST-elevation myocardial infarction (STEMI) to decrease first-medical-contact-to-balloon time (FMC2B). The rate of "false positive" prehospital activations is high. In order to decrease this rate and expedite care for patients with true STEMI, the American Heart Association (AHA; Dallas, Texas USA) developed the Mission Lifeline PreAct STEMI algorithm, which was implemented in Los Angeles County (LAC; California USA) in 2015.

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We examined primary care providers' (PCPs') management of attention-deficit/hyperactivity disorder (ADHD) during and following families' participation in two arms of the Children's ADHD Telemental Health Treatment Study. We hypothesized that more intensive treatment during the trial would show an "after-effect" with more assertive PCPs' management during short term follow-up. We conducted a pragmatic follow-up of PCPs' management of children with ADHD who had been randomized to two service delivery models.

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Background: Collaborative care (CC) is a well-established approach for the delivery of accessible behavioral health services in integrated health care settings. Substantial evidence supports its effectiveness in improving the quality and outcomes of adult services, and growing research indicates utility with child and adolescent populations.

Methods: To date, studies examining CC models for youth have focused exclusively on primary-care settings.

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Background: This study evaluates differences in out-of-hospital cardiac arrest (OHCA) characteristics, interventions, and outcomes by race/ethnicity.

Methods: This is a retrospective analysis from a regionalized cardiac system. Outcomes for all adult patients treated for OHCA with return of spontaneous circulation (ROSC) were identified from 2011-2014.

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Microbial cell disruption using pressurized gases (e.g., CO) is a promising approach to improve the lipid recovery from wet oleaginous microorganisms by eliminating the energy-intensive drying required for conventional methods.

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Article Synopsis
  • The study analyzed treatment strategies and timing for patients with ST-segment-elevation myocardial infarction in the first 5 years of the Mission: Lifeline program by examining data from 2008 to 2012 involving 147,466 patients across 485 hospitals.
  • A significant reduction was observed in the number of eligible patients not receiving reperfusion therapy, with increased use of prehospital ECGs and improved times from first medical contact to treatment.
  • While in-hospital mortality rates increased overall, adjusted mortality rates for patients without cardiac arrest showed substantial improvement, indicating better quality of care over the study period.
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