Publications by authors named "John Winters"

Background: While national guidelines recommend Venous Thromboembolism (VTE) risk assessment in cancer outpatients and consideration of pharmacologic prophylaxis in high-risk patients, prophylaxis rates are low in community oncology practices. A successful model for guideline implementation (the Vermont Model, VM) is validated in an academic tertiary oncology setting. We undertook an implementation study to determine the success of this model in a multi-site community oncology practice.

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  • A study focused on 13 patients with advanced HIV (CD4 count under 200 cells/μL) who also had severe mpox and multiple organ issues.* -
  • These patients underwent long treatments with various medications, including tecovirimat and others, but still faced serious health complications.* -
  • The outcomes showed that they had long hospital stays and a high death rate, highlighting the severity of their conditions.*
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  • Dental caries is the most prevalent chronic disease in children, impacting nearly half of the youth worldwide, and access to dental care in remote areas has been worsened by COVID-19.
  • This study focuses on creating and validating a deep learning system to automatically screen children's dental health using color photos, aiming for low-cost remote evaluations.
  • The research utilized 1,020 dental photos and achieved an accuracy rate of 79%, with the Inception-v3 deep learning model providing precision and recall rates of 95% and 75%, respectively, in distinguishing between dental caries and healthy teeth.
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Men who have sex with men living with HIV (MSM LWH) are at highest risk for human papillomavirus (HPV)-associated anal cancer. There is no consensus on the optimal screening initiation age. This study aimed to assess the prevalence and severity of anal HPV disease among MSM LWH under the age of 35, which is a currently proposed screening age threshold.

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A large percentage of infants develop viral bronchiolitis needing medical intervention and often develop further airway disease such as asthma. To characterize metabolic perturbations in acute respiratory syncytial viral (RSV) bronchiolitis, we compared metabolomic profiles of moderate and severe RSV patients versus sedation controls. RSV patients were classified as moderate or severe based on the need for invasive mechanical ventilation.

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The feasibility of gastrointestinal (GI) microbiome work in a pediatric intensive care unit (PICU) to determine the GI microbiota composition of infants as compared to control infants from the same hospital was investigated. In a single-site observational study at an urban quaternary care children's hospital in Western Michigan, subjects less than 6 months of age, admitted to the PICU with severe respiratory syncytial virus (RSV) bronchiolitis, were compared to similarly aged control subjects undergoing procedural sedation in the outpatient department. GI microbiome samples were collected at admission ( = 20) and 72 h ( = 19) or at time of sedation ( = 10).

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We use individual-level data from the United States Current Population Survey to examine effects of the COVID-19 pandemic on employment losses across metropolitan area status and population size. Job losses spiked in April 2020, and partially recovered in subsequent months. Non-metropolitan and metropolitan areas of all sizes experienced significant employment losses, but the impacts were much larger in large metropolitan areas.

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Objectives: People detained in correctional facilities are at high risk for infection with severe acute respiratory syndrome coronavirus 2, the virus that causes coronavirus disease 2019 (COVID-19). We described the epidemiology of the COVID-19 outbreak in a large urban jail system, including signs and symptoms at time of testing and risk factors for hospitalization.

Methods: This retrospective observational cohort study included all patients aged ≥18 years who were tested for COVID-19 during March 11-April 28, 2020, while in custody in the New York City jail system (N = 978).

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Background: Screening strategies for high-risk human papillomavirus (hrHPV)-associated anal cancer are evolving. Herein, we compare anal cytology to hrHPV DNA testing and 2 novel cytology/hrHPV cotesting algorithms among 3 high-risk populations.

Methods: Anal cytology, hrHPV DNA testing, and high-resolution anoscopy (HRA)-guided biopsy results were analyzed from 1837 participants (1504 HIV-infected men who have sex with men (MSM), 155 HIV-uninfected MSM, and 178 HIV-infected women).

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The aim of this prospective cohort study was to describe the anaesthetic practices, rates of postoperative pain and the recovery trajectory of children having urgent dental extractions at our institution. Demographic, anaesthetic and surgical details of children undergoing dental extractions were obtained by case note review. Parent-proxy pain scores were collected via telephone on the day of surgery and on postoperative days, as well as details of analgesia given, behavioural disturbance, and nausea and vomiting.

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The comet assay is gaining popularity as a means to assess DNA damage in cultured cells and tissues, particularly following exposure to chemicals or other environmental stressors. Use of the comet assay in regulatory testing for genotoxic potential in rodents has been driven by adoption of an Organisation for Economic Co-operation and Development (OECD) test guideline in 2014. Comet assay slides are typically prepared from fresh tissue at the time of necropsy; however, freezing tissue samples can avoid logistical challenges associated with simultaneous preparation of slides from multiple organs per animal and from many animals per study.

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Objectives: Sedated intensive care patients have impaired ocular protective mechanisms putting them at risk for ocular surface disease with potential vision loss. Historically, routine eye care has been limited to critically ill patients receiving neuromuscular blockade. The aim of this project was to determine the occurrence rate of ocular surface disease in sedated and ventilated children, identify risk factors, and determine the progression of injury with routine eye care.

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  • Genotoxicity testing helps scientists figure out if chemicals from drugs, industries, or the environment can harm DNA and cause cancer.
  • The alkaline comet assay is a common test that finds DNA breaks, but it can miss certain harmful changes called bulky adducts.
  • To detect these missed changes, researchers use special cells and new technology called HepaCometChip, which helps spot these dangerous DNA issues better than older tests.
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The National Toxicology Program tested two common radiofrequency radiation (RFR) modulations emitted by cellular telephones in a 2-year rodent cancer bioassay that included interim assessments of additional animals for genotoxicity endpoints. Male and female Hsd:Sprague Dawley SD rats and B6C3F1/N mice were exposed from Gestation day 5 or Postnatal day 35, respectively, to code division multiple access (CDMA) or global system for mobile modulations over 18 hr/day, at 10-min intervals, in reverberation chambers at specific absorption rates of 1.5, 3, or 6 W/kg (rats, 900 MHz) or 2.

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Objective: Dental casts are an important aspect in the treatment planning, documentation, and analysis of the dental arch forms of infants with cleft lip and palate (CLP). Impression taking in a neonate is a technique-sensitive procedure, which can result in foreign body dislodgement and carries a small risk of aspiration and airway obstruction. The advent of digital dental technologies and intraoral scanning may facilitate safer, more effective, and accurate impressions for CLP infants.

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  • The study aimed to compare the effectiveness of intra-oral photographic methods versus comprehensive dental examinations (CDE) in detecting dental issues in children, using different levels of dental practitioners.
  • A total of 77 children (ages 2-18) were assessed, showing that the photographic method had high specificity (95%) but lower sensitivity (61.5%), indicating it missed some cases of decay compared to CDE.
  • Despite being less effective overall, the photographic method provided valuable diagnostic information, particularly for anterior teeth, and may serve as a cost-effective and easier screening option in dental practice.
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This paper used microdata from the 2013-2015 American Community Survey to examine differences in federal government, state and local government, private sector, and self-employment among employed veterans and nonveterans. The U.S.

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 To compare efficacy and safety of two moderate sedation regimens for transthoracic echocardiography (TTE): intranasal dexmedetomidine-midazolam (DM) versus oral chloral hydrate (CH) syrup.  This was a retrospective cohort of 93 children under 4 years of age receiving moderate sedation with either DM or CH for TTE from January 2011 through December 2014.  Forty-nine patients received oral CH and 44 received the intranasal combination of DM.

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Published reports indicate low retrieval rates for retrievable inferior vena cava (IVC) filters. We performed a historic-controlled study of a 5-year intervention (March 2007 to February 2012) to improve IVC filter retrieval rates at a university medical center serving a rural area. All adults with a retrievable filter placed were included, except those with a life expectancy <6 months.

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Objectives: To assess the changes in the oral health-related quality of life (OHRQoL) of 221 preschool children who presented to the emergency department with the consequences of untreated dental caries requiring dental extractions under general anaesthesia (DEGA).

Methods: Two hundred and twenty-one healthy preschool children, who required emergency DEGA, were recruited over a period of 12 months. The same parent or caregiver completed the Early Childhood Oral Health Impact Scale (ECOHIS) questionnaire; both, prior to the DEGA and at the 2-week post-treatment visit.

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Objective : To investigate the reproducibility and repeatability of digital models of patients with a unilateral cleft lip and palate (UCLP) using the GOSLON yardstick. Design : Reproducibility and repeatability study. Method : Two examiners used the GOSLON yardstick to assess the intermaxillary dentoalveolar relationship of 30 consecutive UCLP patients by analyzing their 9-year (±3 months) dental study casts and digital study models.

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Cancer-associated thrombosis.

Hematol Oncol Clin North Am

August 2010

Venous thromboembolic events are common in patients with malignancy, producing both morbidity and mortality. Although the underlying mechanisms by which cancer might promote a procoagulant state are multifaceted and incompletely understood, recent translational research has significantly advanced our understanding of the relationship between cancer and thrombosis. The occurrence of a thromboembolic event in a patient with an active malignancy should be regarded as a life-threatening complication, and decisions regarding prevention and treatment are usually complex.

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Background: Children with pneumonia may develop parapneumonic effusion (PNE). The associated inflammatory process and nutritional compromise can blunt erythropoesis. Traditional treatment for these children with PNE includes repeated phlebotomy and surgical intervention, resulting in ongoing blood losses.

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An infant with a suspected inborn metabolism error was treated with a metabolic cocktail of intravenous sodium phenylacetate (NaPh) and sodium benzoate (NaBz) for hyperammonemia. Sequential hemodialysis (HD) then hemofiltration (HF) was performed due to hyperammonemia. Dialytic and convective clearance (K; ml/min) of ammonia, NaPh, and NaBz was measured.

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Objective: Controversy surrounds the optimal treatment of parapneumonic effusions. This trial of pediatric patients with community-acquired pneumonia and associated parapneumonic processes compared primary video-assisted thoracoscopic surgery with conventional thoracostomy drainage.

Design: A prospective, randomized trial was conducted at DeVos Children's Hospital (Grand Rapids, MI) between November 2003 and May 2005.

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