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1.
J Cosmet Laser Ther ; : 1-3, 2024 Jun 13.
Article in English | MEDLINE | ID: mdl-38871005

ABSTRACT

Reed Syndrome, or hereditary leiomyomatosis and renal cell carcinoma syndrome, is a rare, autosomal dominant genetic condition that predisposes individuals to a triad of cutaneous leiomyomas, uterine leiomyomas and renal cell carcinoma. Cutaneous leiomyomas are often the first manifestation of the syndrome, occurring in 76% of patients and average 26 in number. We present a case of a 47 year old female with Reed Syndrome with an unusually extensive cutaneous burden, with a total of 361 cutaneous lesions, far above the average reported number of 26. Due to the extent of her cutaneous burden, painful nature of the lesions and failure to respond to standard therapies, she was referred for fully ablative Erbium:Yag laser resurfacing therapy. The use of fully ablative Erbium:YAG laser resurfacing therapy for treatment of cutaneous leiomyomas has not been reported in the literature to date. One year following laser therapy, the treatment area not only began to repigment, but there was also no evidence of cutaneous leiomyomas recurrence or associated pain. Given the effectiveness of this unique therapy, fully ablative Erbium:YAG laser resurfacing should be kept in mind as a treatment option for both cosmetic and symptomatic cutaneous leiomyomas.

2.
Am J Hum Genet ; 107(1): 34-45, 2020 07 02.
Article in English | MEDLINE | ID: mdl-32497488

ABSTRACT

IFAP syndrome is a rare genetic disorder characterized by ichthyosis follicularis, atrichia, and photophobia. Previous research found that mutations in MBTPS2, encoding site-2-protease (S2P), underlie X-linked IFAP syndrome. The present report describes the identification via whole-exome sequencing of three heterozygous mutations in SREBF1 in 11 unrelated, ethnically diverse individuals with autosomal-dominant IFAP syndrome. SREBF1 encodes sterol regulatory element-binding protein 1 (SREBP1), which promotes the transcription of lipogenes involved in the biosynthesis of fatty acids and cholesterols. This process requires cleavage of SREBP1 by site-1-protease (S1P) and S2P and subsequent translocation into the nucleus where it binds to sterol regulatory elements (SRE). The three detected SREBF1 mutations caused substitution or deletion of residues 527, 528, and 530, which are crucial for S1P cleavage. In vitro investigation of SREBP1 variants demonstrated impaired S1P cleavage, which prohibited nuclear translocation of the transcriptionally active form of SREBP1. As a result, SREBP1 variants exhibited significantly lower transcriptional activity compared to the wild-type, as demonstrated via luciferase reporter assay. RNA sequencing of the scalp skin from IFAP-affected individuals revealed a dramatic reduction in transcript levels of low-density lipoprotein receptor (LDLR) and of keratin genes known to be expressed in the outer root sheath of hair follicles. An increased rate of in situ keratinocyte apoptosis, which might contribute to skin hyperkeratosis and hypotrichosis, was also detected in scalp samples from affected individuals. Together with previous research, the present findings suggest that SREBP signaling plays an essential role in epidermal differentiation, skin barrier formation, hair growth, and eye function.


Subject(s)
Arthrogryposis/genetics , Mutation/genetics , Sterol Regulatory Element Binding Protein 1/genetics , Adolescent , Adult , Child , Child, Preschool , Female , Gene Expression Regulation/genetics , Humans , Keratosis/genetics , Male , Middle Aged , Pedigree , Phenotype , Young Adult
3.
Intern Med J ; 51(2): 254-263, 2021 Feb.
Article in English | MEDLINE | ID: mdl-31908090

ABSTRACT

BACKGROUND: Quick Sepsis-related Organ Failure Assessment (qSOFA) is recommended for use by the most recent international sepsis definition taskforce to identify suspected sepsis in patients outside the intensive care unit (ICU) at risk of adverse outcomes. Evidence of its comparative effectiveness with existing sepsis recognition tools is important to guide decisions about its widespread implementation. AIM: To compare the performance of qSOFA with the adult sepsis pathway (ASP), a current sepsis recognition tool widely used in NSW hospitals and systemic inflammatory response syndrome criteria in predicting adverse outcomes in adult patients on general wards. METHODS: A retrospective observational cohort study was conducted which included all adults with suspected infections admitted to a Sydney teaching hospital between December 2014 and June 2016. The primary outcome was in-hospital mortality with two secondary composite outcomes. RESULTS: Among 2940 patients with suspected infection, 217 (7.38%) died in-hospital and 702 (23.88%) were subsequently admitted to ICU. The ASP showed the greatest ability to correctly discriminate in-hospital mortality and secondary outcomes. The area under the receiver-operating characteristic curve for mortality was 0.76 (95% confidence interval (CI): 0.74-0.78), compared to 0.64 for the qSOFA tool (95% CI: 0.61-0.67, P < 0.0001). Median time from the first ASP sepsis warning to death was 8.21 days (interquartile range (IQR): 2.29-16.75) while it was 0 days for qSOFA (IQR: 0-2.58). CONCLUSIONS: The ASP demonstrated both greater prognostic accuracy and earlier warning for in-hospital mortality for adults on hospital wards compared to qSOFA. Hospitals already using ASP may not benefit from switching to the qSOFA tool.


Subject(s)
Organ Dysfunction Scores , Sepsis , Adult , Hospital Mortality , Humans , Intensive Care Units , Patients' Rooms , Prognosis , ROC Curve , Retrospective Studies , Sepsis/diagnosis
4.
Ophthalmology ; 127(10): 1345-1359, 2020 10.
Article in English | MEDLINE | ID: mdl-32344075

ABSTRACT

PURPOSE: To evaluate features and outcomes of eyes with retinal vasculitis and intraocular inflammation (IOI) after intravitreal injection (IVI) of brolucizumab 6 mg/0.05 ml for treatment of neovascular age-related macular degeneration. DESIGN: Retrospective case series. PARTICIPANTS: Fifteen eyes from 12 patients identified from 10 United States centers. METHODS: Review of patient demographics, ophthalmologic examination results, and retinal imaging findings. MAIN OUTCOME MEASURES: Baseline and follow-up visual acuity (VA), prior anti-vascular endothelial growth factor (VEGF) injections, clinical presentation, retinal findings, fluorescein angiography results, and treatment strategies. RESULTS: The number of previous anti-VEGF IVIs ranged between 2 and 80 in the affected eye before switching to brolucizumab. Retinal vasculitis and IOI were diagnosed at a mean of 30 days after brolucizumab IVI. Mean VA before brolucizumab IVI was 0.426 logarithm of the minimum angle of resolution (logMAR; Snellen equivalent, 20/53) and VA at diagnosis of retinal vasculitis was 0.981 logMAR (Snellen equivalent, 20/191; range, 20/25-20/1600; P = 0.008). All affected eyes showed IOI with variable combinations of focal or elongated segmental sheathing and discontinuity of small and large retinal arteries, sclerotic arteries, regions of vascular nonperfusion, cotton-wool spots, Kyrieleis plaques, irregular venous caliber with dilated and sclerotic segments, perivenular hemorrhages, and foci of phlebitis. Fluorescein angiography revealed delayed retinal arterial filling, retinal vascular nonperfusion, and variable dye leakage from affected vessels and the optic nerve. Systemic evaluation for embolic causes was unrevealing in 2 patients, and 3 patients showed negative laboratory assessment for uveitis. Treatment consisted of various combinations of corticosteroids (systemic, intravitreal, and topical), and 2 eyes underwent vitrectomy without improvement in vision. After a mean follow-up of 25 days, mean VA was 0.833 logMAR (Snellen equivalent, 20/136), which was reduced compared with baseline (P = 0.033). CONCLUSIONS: Retinal vasculitis and IOI after brolucizumab IVI are characterized by variable occlusion of large or small retinal arteries, or both, and perivenular abnormalities. It may span from peripheral vasculitis to occlusion of large retinal arteries around the optic nerve or macula with severe vision loss. A high index of suspicion is required because vitreous cells may obscure visualization of retinal details.


Subject(s)
Antibodies, Monoclonal, Humanized/adverse effects , Retinal Vasculitis/chemically induced , Uveitis/chemically induced , Visual Acuity , Aged , Aged, 80 and over , Antibodies, Monoclonal, Humanized/administration & dosage , Female , Fluorescein Angiography , Follow-Up Studies , Fundus Oculi , Humans , Intravitreal Injections , Macula Lutea/pathology , Male , Prognosis , Retinal Vasculitis/diagnosis , Retrospective Studies , Tomography, Optical Coherence , Uveitis/diagnosis
5.
J Biomed Inform ; 100: 103317, 2019 12.
Article in English | MEDLINE | ID: mdl-31654801

ABSTRACT

Inter-observer agreement (IOA) is a key aspect of data quality in time-and-motion studies of clinical work. To date, such studies have used simple and ad hoc approaches for IOA assessment, often with minimal reporting of methodological details. The main methodological issues are how to align time-stamped task intervals that rarely have agreeing start and end times, and how to assess IOA for multiple nominal variables. We present a combination of methods that simultaneously addresses both these issues and provides a more appropriate measure by which to assess IOA for time-and-motion studies. The issue of alignment is addressed by converting task-level data into small time windows then aligning data from different observers by time. A method applicable to multivariate nominal data, the iota score, is then applied to the time-aligned data. We illustrate our approach by comparing iota scores to the mean of univariate Cohen's kappa scores through application of these measures to existing data from an observational study of emergency department physicians. While the two scores generated very similar results under certain conditions, iota was more resilient to sparse data issues. Our results suggest that iota applied to time windows considerably improves on previous methods used for IOA assessment in time-and-motion studies, and that Cohen's kappa and other univariate measures should not be considered the gold standard. Rather, there is an urgent need for ongoing explicit discussion of methodological issues and solutions to improve the ways in which data quality is assessed in time-and-motion studies in order to ensure the conclusions drawn from such studies are robust.


Subject(s)
Observational Studies as Topic , Observer Variation , Humans , Multivariate Analysis , Time and Motion Studies
6.
Brain Behav Immun ; 68: 238-247, 2018 02.
Article in English | MEDLINE | ID: mdl-29080684

ABSTRACT

Acute stress is a physiological response of an organism to adverse conditions, contributing to survival; however, persistence through time may lead to disease. Indeed, exacerbation of inflammatory conditions such as psoriasis has been reported to follow stressors in susceptible patients. Because chronic stress cannot ethically be elicited in patients under controlled laboratory conditions, we studied genetically modified mice that naturally develop psoriasiform dermatitis, and subjected them to an ethological chronic social contact stress paradigm. Although we found elevated pro-inflammatory neuropeptide production of substance P (SP), calcitonin-gene-related peptide (CGRP) and nerve-growth factor (NGF) mRNA in the dorsal root ganglia (DRG) as well as pro-inflammatory cytokines in response to the social stressor, stress paradoxically prevented the development of the skin lesions. This effect of stress could be reversed by the treatment with glucocorticoid (GC) receptor blockers, suggesting that it was mediated through the upregulation of corticosterone secretion. Extrapolating to humans, the worsening of disease in susceptible patients with psoriasis could be attributed to a defect in the Hypothalamic-Pituitary-Adrenal (HPA) axis with an impaired production of GC during situations of adversity, thus rendering them unable to counteract the pro-inflammatory effects of chronic stressors.


Subject(s)
Psoriasis/physiopathology , Stress, Psychological/metabolism , Adrenal Cortex Hormones/metabolism , Animals , Calcitonin Gene-Related Peptide , Corticosterone/pharmacology , Dermatitis , Disease Models, Animal , Ganglia, Spinal/metabolism , Hypothalamo-Hypophyseal System/metabolism , Male , Mice , Mice, Transgenic , Nerve Growth Factor , Neuropeptides , Pituitary-Adrenal System/metabolism , Psoriasis/metabolism , RNA, Messenger , Receptors, Glucocorticoid/metabolism , Stress, Psychological/genetics , Substance P , Transcriptional Activation , Up-Regulation
7.
Ergonomics ; 61(1): 40-47, 2018 Jan.
Article in English | MEDLINE | ID: mdl-28697685

ABSTRACT

The aim of this study was to obtain baseline data on doctors' and nurses' work activities and rates of interruptions and multitasking to improve work organisation and processes. Data were collected in six surgical units with the WOMBAT (Work Observation Method by Activity Timing) tool. Results show that doctors and nurses received approximately 13 interruptions per hour, or one interruption every 4.5 min. Compared to doctors, nurses were more prone to interruptions in most activities, while doctors performed multitasking (33.47% of their time, 95% CI 31.84-35.17%) more than nurses (15.23%, 95% CI 14.24-16.25%). Overall, the time dedicated to patient care is relatively limited for both professions (37.21%, 95% CI 34.95-39.60% for doctors, 27.22%, 95% CI 25.18-29.60% for nurses) compared to the time spent for registration of data and professional communication, that accounts for two-thirds of doctors' time and nearly half of nurses' time. Further investigation is needed on strategies to manage job demands and professional communications. Practitioner Summary: This study offers further findings on the characteristics and frequency of multitasking and interruptions in surgery, with a comparison of how they affect doctors and nurses. Further investigation is needed to improve the management of job demands and communications according to the results.


Subject(s)
General Surgery/methods , Multitasking Behavior , Task Performance and Analysis , Work/psychology , Workflow , Female , Humans , Male , Time Factors
8.
Br J Clin Pharmacol ; 83(2): 416-426, 2017 02.
Article in English | MEDLINE | ID: mdl-27614089

ABSTRACT

AIMS: Adverse drug reactions (ADRs) have major impacts on patients and the hospital system. Methods identifying ADRs from selected International Classification of Diseases-10th revision (ICD-10) diagnosis and external cause codes can be applied to population-level hospital admissions data, enabling the study of rare, yet serious ADRs. The present study aimed to use ICD10-based methods to identify four types of serious idiosyncratic ADRs in Australia, and to assess changes in incidence and their impact on length of stay (LOS), readmission and in-hospital mortality. METHODS: The study used a census of hospital admission data from New South Wales between July 2000 and June 2012. Changes in incidence rates over time relative to a control group were estimated using log-linear regression. To assess impacts on LOS, readmission and mortality, each ADR case was matched with five controls, and cases were compared with controls via generalized linear models appropriate to each outcome. RESULTS: The incidence of three ADR types showed a significant increase over time relative to controls, while the fourth type showed no evidence of change. All ADR types were significantly associated with an increase in LOS of between 22% and 328%. Significant increases in risk of readmission or death were only observed for some ADR types. CONCLUSIONS: Reducing the incidence of idiosyncratic ADRs is challenging. ICD10-based methods support population-level analyses that can provide important insights into the effects and changes in ADRs over time. This, combined with strategies related to both patient care and drug monitoring pre- and post-commercial release, provides ways forward.


Subject(s)
Adverse Drug Reaction Reporting Systems , Drug-Related Side Effects and Adverse Reactions/epidemiology , Hospitalization/statistics & numerical data , Patient Readmission/statistics & numerical data , Aged , Female , Hospital Mortality , Humans , Incidence , Length of Stay , Linear Models , Male , Middle Aged , New South Wales/epidemiology
9.
Przegl Lek ; 73(7): 452-9, 2016.
Article in English | MEDLINE | ID: mdl-29676886

ABSTRACT

Introduction: Primary cutaneous lymphomas are lymphoproliferative skin infiltrates of T-, B- or NK-cells, classified according to the World Health Organization - European Organization of the Research and Treatment of Cancer (WHO-EORTC) criteria. They are the second most common group of extranodal non-Hodgkin lymphomas, that present in the skin with no evidence of systemic involvement at the time of diagnosis. Aims: The aim of the study was the analysis of clinical profile of cutaneous lymphomas in the tertiary referral center in Poland. Material and Methods: We analyzed case records of 63 patients (26 women, 37 men aged 19 - 86) referred to the Department of Dermatology, University Hospital in Cracow for the diagnosis and treatment of cutaneous lymphoma. Results: After analysis of clinical and histological data, the final diagnoses were: mycosis fungoides (42 patients), primary cutaneous CD30+ lymphoproliferative disorder (7), Sezary syndrome (3), parapsoriasis (3), primary cutaneous B-cell lymphoma (1), acute myeloid leukemia (1), Hodgkin lymphoma coexistent with mycosis fungoides (1), generalized allergic contact dermatitis (2) and erythema elevatum diutinum (1). We excluded 2 patients due to incomplete data. The most common location of skin lesions was the lower limb (52.46%) and most common clinical presentation was raised erythematous lesion (26.23%). Pruritus was present in 45.9% of the patients and 39.3% had extracutaneous symptoms, with lymphadenopathy as the most common symptom. 37.7% of patients presented with mild eosinophilia and another 37.7% with mild monocytosis. Prior to referral to our center, general practitioners misdiagnosed the lymphomas commonly as: atopic and contact dermatitis, borreliosis, drug-induced exanthema. Conclusions: The diagnosis of cutaneous lymphoma is often delayed due to their indolent, often recurring course, non-specific symptoms and uncommon appearance. The cooperation of a clinician and pathologist is essential in the diagnostic process.


Subject(s)
Hospitals, University , Lymphoma/pathology , Skin Neoplasms/pathology , Adult , Aged , Aged, 80 and over , Dermatology , Female , Humans , Lymphoma/diagnosis , Lymphoma/epidemiology , Lymphoma, B-Cell/diagnosis , Lymphoma, B-Cell/epidemiology , Lymphoma, B-Cell/pathology , Male , Middle Aged , Mycosis Fungoides/diagnosis , Mycosis Fungoides/epidemiology , Mycosis Fungoides/pathology , Parapsoriasis/diagnosis , Parapsoriasis/epidemiology , Parapsoriasis/pathology , Poland/epidemiology , Sezary Syndrome/diagnosis , Sezary Syndrome/epidemiology , Sezary Syndrome/pathology , Skin Neoplasms/diagnosis , Skin Neoplasms/epidemiology , Young Adult
10.
J Hepatol ; 62(2): 269-77, 2015 Feb.
Article in English | MEDLINE | ID: mdl-25200903

ABSTRACT

BACKGROUND & AIMS: People living with hepatitis C virus (HCV) are at increased risk of all-cause and liver-related mortality, although successful treatment has been shown to reduce this risk. The aim of this study was to provide baseline data on trends in cause-specific mortality and to establish an international surveillance system for evaluating the population level impact of HCV treatments. METHODS: Population level HCV diagnosis databases from Scotland (1997-2010), Australia (New South Wales [NSW]) (1997-2006), and Canada (British Columbia [BC]) (1997-2003) were linked to corresponding death registries using record linkage. For each region, age-adjusted cause-specific mortality rates were calculated, and trends in annual age-adjusted liver-related mortality were plotted. RESULTS: Of 105,138 individuals diagnosed with HCV (21,810 in Scotland, 58,484 in NSW, and 24,844 in BC), there were 7275 deaths (2572 in Scotland, 2655 in NSW, and 2048 in BC). Liver-related deaths accounted for 26% of deaths in Scotland, 21% in NSW, and 22% in BC. Temporal trends in age-adjusted liver related mortality were stable in Scotland (males p=0.4; females p=0.2) and NSW (males p=0.9; females p=0.9), while there was an increase in BC (males p=0.002; females p=0.04). CONCLUSIONS: The risk of liver-related mortality after a diagnosis of HCV has remained stable or increased over time across three regions with well-established diagnosis databases, highlighting that HCV treatment programmes to-date have had minimal impact on population level HCV-related liver disease. With more effective therapies on the horizon, and greater uptake of treatment anticipated, the potential of future therapeutic strategies to reduce HCV-related mortality is considerable.


Subject(s)
Antiviral Agents/therapeutic use , Hepatitis C, Chronic/mortality , Adult , Age Distribution , British Columbia/epidemiology , Cause of Death/trends , Female , Follow-Up Studies , Hepatitis C, Chronic/diagnosis , Hepatitis C, Chronic/drug therapy , Humans , Male , Middle Aged , New South Wales/epidemiology , Retrospective Studies , Scotland/epidemiology , Survival Rate/trends , Young Adult
11.
Stud Health Technol Inform ; 310: 314-318, 2024 Jan 25.
Article in English | MEDLINE | ID: mdl-38269816

ABSTRACT

Sepsis is a global health priority associated with high mortality. Clinical decision support systems have been developed to support clinicians with sepsis management. Ordering blood cultures (BCs) for suspected sepsis patients are strongly recommended by clinical guidelines. However, limited evidence exists investigating BC ordering following sepsis alerts and subsequent patient outcomes. This study aimed to investigate this issue using electronic health record data from an acute care hospital in Australia. Of 4,092 patients, only 16.6% had a BC ordered following a sepsis alert. The median time from the first sepsis alert to a BC order was 15.3 hours. Patients had 5.89 times higher odds of being diagnosed with sepsis if a BC was ordered following a sepsis alert than those without BC ordered (p<0.0001). Further investigation is needed to understand reasons behind the delay or failure to order a BC despite receiving electronic sepsis alerts and how decision support can be optimized to improve patient outcomes.


Subject(s)
Electronic Health Records , Sepsis , Humans , Blood Culture , Records , Sepsis/diagnosis , Australia
12.
Lancet Digit Health ; 6(3): e187-e200, 2024 Mar.
Article in English | MEDLINE | ID: mdl-38395539

ABSTRACT

BACKGROUND: Pre-exposure prophylaxis (PrEP), condom use, post-exposure prophylaxis (PEP), and sexual partner reduction help to prevent HIV acquisition but have low uptake among young people. We aimed to assess the efficacy of automated text messaging and monitoring, online peer support, and strengths-based telehealth coaching to improve uptake of and adherence to PrEP, condom use, and PEP among adolescents aged 12-24 years at risk of HIV acquisition in Los Angeles, CA, USA, and New Orleans, LA, USA. METHODS: We conducted a four-arm randomised controlled factorial trial, assessing interventions designed to support uptake and adherence of HIV prevention options (ie, PrEP, PEP, condom use, and sexual partner reduction). We recruited young people aged 12-24 years who were at risk of HIV acquisition from 13 community-based organisations, adolescent medicine clinics, and organisations serving people who are unstably housed, people who were previously incarcerated, and other vulnerable young people, and through dating apps, peer referrals, and social venues and events in Los Angeles, CA, USA, and New Orleans, LA, USA. Young people who tested seronegative and reported being gay, bisexual, or other men who have sex with men, transgender men or women, or gender diverse (eg. non-binary or genderqueer) were eligible for inclusion. Participants were randomly assigned to one of four intervention groups in a factorial design: automated text messaging and monitoring (AMMI) only, AMMI plus peer support via private social media, AMMI plus strengths-based telehealth coaching by near-peer paraprofessionals, or AMMI plus peer support and coaching. Assignment was further stratified by race or ethnicity and sexual orientation within each interviewer's group of participants. Participants were masked to intervention assignment until after baseline interviews when offered their randomly assigned intervention, and interviewers were masked throughout the study. Interventions were available throughout the 24-month follow-up period, and participants completed baseline and follow-up assessments, including rapid diagnostic tests for sexually transmitted infections, HIV, and substance use, at 4-month intervals over 24 months. The primary outcomes were uptake and adherence to HIV prevention options over 24 months, measured by self-reported PrEP use and adherence, consistent condom use with all partners, PEP prescription and adherence, and number of sexual partners in participants with at least one follow-up. We used Bayesian generalised linear modelling to assess changes in outcomes over time comparing the four study groups. This study is registered with ClinicalTrials.gov (NCT03134833) and is completed. FINDINGS: We screened 2314 adolescents beginning May 1, 2017, to enrol 1037 participants (45%) aged 16-24 years between May 6, 2017, and Aug 30, 2019, of whom 895 (86%) had follow-up assessments and were included in the analytical sample (313 assigned to AMMI only, 205 assigned to AMMI plus peer support, 196 assigned to AMMI plus coaching, and 181 assigned to AMMI plus peer support and coaching). Follow-up was completed on Nov 8, 2021. Participants were diverse in race and ethnicity (362 [40%] Black or African American, 257 [29%] Latinx or Hispanic, 184 [21%] White, and 53 [6%] Asian or Pacific Islander) and other sociodemographic factors. At baseline, 591 (66%) participants reported anal sex without a condom in the past 12 months. PrEP use matched that in young people nationally, with 101 (11%) participants reporting current PrEP use at baseline, increasing at 4 months to 132 (15%) and continuing to increase in the AMMI plus peer support and coaching group (odds ratio 2·31, 95% CI 1·28-4·14 vs AMMI control). There was no evidence for intervention effect on condom use, PEP use (ie, prescription or adherence), PrEP adherence, or sexual partner numbers. No unanticipated or study-related adverse events occurred. INTERPRETATION: Results are consistent with hypothesised synergistic intervention effects of evidence-based functions of informational, motivational, and reminder messaging; peer support for HIV prevention; and strengths-based, goal-focused, and problem-solving telehealth coaching delivered by near-peer paraprofessionals. These core functions could be flexibly scaled via combinations of technology platforms and front-line or telehealth HIV prevention workers. FUNDING: Adolescent Medicine Trials Network for HIV/AIDS Interventions, US National Institutes of Health.


Subject(s)
Acquired Immunodeficiency Syndrome , HIV Infections , Sexual and Gender Minorities , Adolescent , Humans , Male , Female , United States , Homosexuality, Male , HIV Infections/prevention & control , Bayes Theorem
13.
J Clin Oncol ; : JCO2400447, 2024 Jul 25.
Article in English | MEDLINE | ID: mdl-39052972

ABSTRACT

PURPOSE: Validated and accurate prognostic testing is critical for precision medicine in uveal melanoma (UM). Our aims were to (1) prospectively validate an integrated prognostic classifier combining a 15-gene expression profile (15-GEP) and PRAME RNA expression and (2) identify clinical variables that enhance the prognostic accuracy of the 15-GEP/PRAME classifier. MATERIALS AND METHODS: This study included 1,577 patients with UM of the choroid and/or ciliary body who were enrolled in the Collaborative Ocular Oncology Group Study Number 2 (COOG2) and prospectively monitored across 26 North American centers. Test results for 15-GEP (class 1 or class 2) and PRAME expression status (negative or positive) were available for all patients. The primary end point was metastasis-free survival (MFS). RESULTS: 15-GEP was class 1 in 1,082 (68.6%) and class 2 in 495 (31.4%) patients. PRAME status was negative in 1,106 (70.1%) and positive in 471 (29.9%) patients. Five-year MFS was 95.6% (95% CI, 93.9 to 97.4) for class 1/PRAME(-), 80.6% (95% CI, 73.9 to 87.9) for class 1/PRAME(+), 58.3% (95% CI, 51.1 to 66.4) for class 2/PRAME(-), and 44.8% (95% CI, 37.9 to 52.8) for class 2/PRAME(+). By multivariable Cox proportional hazards analysis, 15-GEP was the most important independent predictor of MFS (hazard ratio [HR], 5.95 [95% CI, 4.43 to 7.99]; P < .001), followed by PRAME status (HR, 1.82 [95% CI, 1.42 to 2.33]; P < .001). The only clinical variable demonstrating additional prognostic value was tumor diameter. CONCLUSION: In the largest prospective multicenter prognostic biomarker study performed to date in UM to our knowledge, the COOG2 study validated the superior prognostic accuracy of the integrated 15-GEP/PRAME classifier over 15-GEP alone and clinical prognostic variables. Tumor diameter was found to be the only clinical variable to provide additional prognostic information. This prognostic classifier provides an advanced resource for risk-adjusted metastatic surveillance and adjuvant trial stratification in patients with UM.

14.
Emerg Infect Dis ; 19(1): 92-101, 2013 Jan.
Article in English | MEDLINE | ID: mdl-23260059

ABSTRACT

To estimate population attack rates of influenza A(H1N1)pdm2009 in the Southern Hemisphere during June-August 2009, we conducted several serologic studies. We pooled individual-level data from studies using hemagglutination inhibition assays performed in Australia, New Zealand, and Singapore. We determined seropositive proportions (titer ≥40) for each study region by age-group and sex in pre- and postpandemic phases, as defined by jurisdictional notification data. After exclusions, the pooled database consisted of, 4,414 prepandemic assays and 7,715 postpandemic assays. In the prepandemic phase, older age groups showed greater seropositive proportions, with age-standardized, community-based proportions ranging from 3.5% in Singapore to 11.9% in New Zealand. In the postpandemic phase, seropositive proportions ranged from 17.5% in Singapore to 30.8% in New Zealand, with highest proportions seen in school-aged children. Pregnancy and residential care were associated with lower postpandemic seropositivity, whereas Aboriginal and Torres Strait Islander Australians and Pacific Peoples of New Zealand had greater postpandemic seropositivity.


Subject(s)
Antibodies, Viral/blood , Influenza A Virus, H1N1 Subtype/physiology , Influenza, Human/epidemiology , Pandemics , Adolescent , Adult , Age Factors , Aged , Aged, 80 and over , Antibodies, Viral/immunology , Australia/epidemiology , Child , Child, Preschool , Female , Hemagglutination Inhibition Tests , Humans , Incidence , Infant , Influenza, Human/ethnology , Influenza, Human/immunology , Influenza, Human/virology , Male , Middle Aged , Native Hawaiian or Other Pacific Islander , New Zealand/epidemiology , Pregnancy , Seroepidemiologic Studies , Singapore/epidemiology
15.
Ann Emerg Med ; 61(6): 644-653.e16, 2013 Jun.
Article in English | MEDLINE | ID: mdl-23548404

ABSTRACT

STUDY OBJECTIVE: We undertake a systematic review of the quantitative literature related to the effect of computerized provider order entry systems in the emergency department (ED). METHODS: We searched MEDLINE, EMBASE, Inspec, CINAHL, and CPOE.org for English-language studies published between January 1990 and May 2011. RESULTS: We identified 1,063 articles, of which 22 met our inclusion criteria. Sixteen used a pre/post design; 2 were randomized controlled trials. Twelve studies reported outcomes related to patient flow/clinical work, 7 examined decision support systems, and 6 reported effects on patient safety. There were no studies that measured decision support systems and its effect on patient flow/clinical work. Computerized provider order entry was associated with an increase in time spent on computers (up to 16.2% for nurses and 11.3% for physicians), with no significant change in time spent on patient care. Computerized provider order entry with decision support systems was related to significant decreases in prescribing errors (ranging from 17 to 201 errors per 100 orders), potential adverse drug events (0.9 per 100 orders), and prescribing of excessive dosages (31% decrease for a targeted set of renal disease medications). CONCLUSION: There are tangible benefits associated with computerized provider order entry/decision support systems in the ED environment. Nevertheless, when considered as part of a framework of technical, clinical, and organizational components of the ED, the evidence base is neither consistent nor comprehensive. Multimethod research approaches (including qualitative research) can contribute to understanding of the multiple dimensions of ED care delivery, not as separate entities but as essential components of a highly integrated system of care.


Subject(s)
Emergency Service, Hospital , Medical Order Entry Systems , Decision Support Systems, Clinical , Emergency Service, Hospital/organization & administration , Emergency Service, Hospital/standards , Humans , Medication Errors/prevention & control , Quality of Health Care
16.
BMC Nephrol ; 14: 101, 2013 May 06.
Article in English | MEDLINE | ID: mdl-23642030

ABSTRACT

BACKGROUND: Group A streptococcus (GAS) is an etiological agent for the immune mediated sequela post streptococcal glomerulonephritis (PSGN). In some populations PSGN is recognized as a risk factor for chronic kidney disease (CKD) and end-stage renal disease (ESRD). It was found that a significantly greater proportion of subjects with past history of PSGN than without the history exhibited seroreactions to streptococcal antigens called streptococcal inhibitor of complement (SIC) and to distantly related SIC (DRS). These antigens are expressed by major PSGN-associated GAS types. We therefore predicted that in populations such as India, which is endemic for streptococcal diseases and which has high prevalence of CKD and ESRD, greater proportions of CKD and ESRD patients exhibit seroreaction to SIC and DRS than healthy controls. METHODS: To test this we conducted a SIC and DRS seroprevalence study in subjects from Mumbai area. We recruited 100 CKD, 70 ESRD and 70 healthy individuals. RESULTS: Nineteen and 35.7% of CKD and ESRD subjects respectively were SIC antibody-positive, whereas only 7% of healthy cohort was seropositive to SIC. Furthermore, significantly greater proportion of the ESRD patients than the CKD patients is seropositive to SIC (p=0.02; odds ratio 2.37). No association was found between the renal diseases and DRS-antibody-positivity. CONCLUSIONS: Past infection with SIC-positive GAS is a risk factor for CKD and ESRD in Mumbai population. Furthermore, SIC seropositivity is predictive of poor prognosis of CKD patients.


Subject(s)
Bacterial Proteins/blood , Renal Insufficiency, Chronic/blood , Renal Insufficiency, Chronic/diagnosis , Streptococcal Infections/blood , Streptococcal Infections/diagnosis , Adult , Cohort Studies , Cross-Sectional Studies , Female , Humans , Male , Middle Aged , Renal Insufficiency, Chronic/epidemiology , Seroepidemiologic Studies , Streptococcal Infections/epidemiology
19.
J Card Surg ; 28(5): 522-4, 2013 Sep.
Article in English | MEDLINE | ID: mdl-23898881

ABSTRACT

Orbital compartment syndrome (OCS) is a rare, catastrophic, but potentially treatable complication. It requires prompt diagnosis and immediate intervention, as critical period for possible functional recovery is very short. This report adds to our understanding of potential mechanisms of perioperative blindness, and suggests extracorporeal circulatory support, systemic inflammatory response, and massive blood and fluid resuscitation as potential risk factors for perioperative OCS.


Subject(s)
Compartment Syndromes/etiology , Extracorporeal Membrane Oxygenation/adverse effects , Orbital Diseases/etiology , Postoperative Complications/etiology , Aged , Blindness/etiology , Compartment Syndromes/diagnosis , Compartment Syndromes/surgery , Decompression, Surgical , Eye Hemorrhage/etiology , Female , Fluid Therapy/adverse effects , Humans , Lung Transplantation , Orbital Diseases/diagnosis , Orbital Diseases/therapy , Postoperative Complications/diagnosis , Postoperative Complications/surgery , Risk Factors , Systemic Inflammatory Response Syndrome , Time Factors , Transfusion Reaction , Treatment Outcome
20.
Clin Ophthalmol ; 17: 2791-2802, 2023.
Article in English | MEDLINE | ID: mdl-37753246

ABSTRACT

Importance: Brolucizumab (Beovu®) is an anti-vascular endothelial growth factor (anti-VEGF) agent approved for the treatment of neovascular age-related macular degeneration (nvAMD). Brolucizumab was marketed for its noninferiority to aflibercept and its potential for greater durability. However, post-marketing utilization has been tempered by safety concerns. Objective: We evaluate the visual and anatomic efficacy of brolucizumab, examine changes in treatment intervals after switching to brolucizumab, and estimate the incidence of drug-related adverse events in the real world. Design Setting and Participants: This was a retrospective consecutive case series of 626 eyes (543 patients) with nvAMD treated with 1438 brolucizumab injections at a single retina practice between 10/1/2019 and 5/15/2020. Main Outcomes and Measures: Changes in visual acuity (VA); anatomic outcomes assessed by optical coherence tomography (OCT) including central subfield thickness (CST), macular volume (MV), presence of intraretinal fluid (IRF), subretinal fluid (SRF), and serous pigment epithelial detachment (sPED) on foveal line scans; treatment intervals before and after receiving brolucizumab; and the incidence of brolucizumab-related adverse events. Results: The majority of eyes (N = 531, 89.7%) had received prior anti-VEGF therapy with aflibercept, ranibizumab, and/or bevacizumab. VA improved in treatment-naïve eyes (+3.7 letters, p = 0.04), and was maintained in previously treated eyes. There were significant improvements in all anatomic outcomes in both groups (p < 0.001). We observed a 4.8% incidence of intraocular inflammation (IOI) and a 0.6% incidence of retinal vasculitis. The average treatment interval increased from 6.3 to 6.8 weeks (p = 0.001). Conclusions and Relevance: Brolucizumab treatment was associated with VA improvement in naïve eyes and maintenance of VA in previously treated eyes. Switching to brolucizumab was associated with improved anatomic outcomes and extended treatment intervals in most eyes. We observed a similar incidence of IOI and a lower incidence of retinal vasculitis compared to the Safety Review Committee's analysis of HAWK and HARRIER.

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