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1.
Front Med Technol ; 5: 1183179, 2023.
Artigo em Inglês | MEDLINE | ID: mdl-37727273

RESUMO

Underfunded healthcare infrastructures in low-resource settings in sub-Saharan Africa have resulted in a lack of medical devices crucial to provide healthcare for all. A representative example of this scenario is medical devices to administer paracervical blocks during gynaecological procedures. Devices needed for this procedure are usually unavailable or expensive. Without these devices, providing paracervical blocks for women in need is impossible resulting in compromising the quality of care for women requiring gynaecological procedures such as loop electrosurgical excision, treatment of miscarriage, or incomplete abortion. In that perspective, interventions that can be integrated into the healthcare system in low-resource settings to provide women needing paracervical blocks remain urgent. Based on a context-specific approach while leveraging circular economy design principles, this research catalogues the development of a new medical device called Chloe SED® that can be used to support the provision of paracervical blocks. Chloe SED®, priced at US$ 1.5 per device when produced in polypropylene, US$ 10 in polyetheretherketone, and US$ 15 in aluminium, is attached to any 10-cc syringe in low-resource settings to provide paracervical blocks. The device is designed for durability, repairability, maintainability, upgradeability, and recyclability to address environmental sustainability issues in the healthcare domain. Achieving the design of Chloe SED® from a context-specific and circular economy approach revealed correlations between the material choice to manufacture the device, the device's initial cost, product durability and reuse cycle, reprocessing method and cost, and environmental impact. These correlations can be seen as interconnected conflicting or divergent trade-offs that need to be continually assessed to deliver a medical device that provides healthcare for all with limited environmental impact. The study findings are intended to be seen as efforts to make available medical devices to support women's access to reproductive health services.

2.
Eye (Lond) ; 37(9): 1822-1828, 2023 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-36123561

RESUMO

BACKGROUND/OBJECTIVE: To identify geographic and socioeconomic variables associated with residential proximity to Phase 3 ophthalmology clinical trial sites. METHODS: The geographic location of clinical trial sites for Phase 3 clinical trials in ophthalmology was identified using ClinicalTrials.gov. Driving time from each United States (US) census tract centroid to nearest clinical trial site was calculated using real traffic patterns. Travel data were crosslinked to census-tract level public datasets from United States Census Bureau American Community Survey (ACS). Cross-sectional multivariable regression was used to identify associations between census-tract sociodemographic factors and driving time (>60 min) from each census tract centroid to the nearest clinical trial site. RESULTS: There were 2330 unique clinical trial sites and 71,897 census tracts. Shortest median time was to retina sites [33.7 min (18.7, 70.1 min)]. Longest median time was to neuro-ophthalmology sites [119.8 min (48.7, 240.4 min)]. Driving >60 min was associated with rural tracts [adjusted odds ratio (aOR) 7.60; 95% CI (5.66-10.20), p < 0.0001]; Midwest [aOR 1.84(1.15-2.96), p = 0.01], South [aOR 2.57 (1.38-4.79), p < 0.01], and West [aOR 2.52 (1.52-4.17), p < 0.001] v. Northeast; and tracts with higher visual impairment [aOR 1.07 (1.03-1.10), p < 0.001)]; higher poverty levels [4th v.1st Quartile of population below poverty, aOR 2.26 (1.72-2.98), p < 0.0001]; and lower education levels [high school v. Bachelor's degree or higher aOR 1.02 (1.00-1.03), p = 0.0072]. CONCLUSIONS: There are significant geographic and socioeconomic disparities in access to ophthalmology clinical trial sites for rural, non-Northeastern, poorer, and lower education level census tracts, and for census tracts with higher levels of self-reported visual impairment.


Assuntos
Oftalmologia , Humanos , Censos , Estudos Transversais , Fatores Socioeconômicos , Estados Unidos , Transtornos da Visão , Ensaios Clínicos Fase III como Assunto , Características de Residência , Disparidades Socioeconômicas em Saúde
3.
Viruses ; 14(12)2022 11 29.
Artigo em Inglês | MEDLINE | ID: mdl-36560672

RESUMO

BACKGROUND: Hepatitis B surface antigen (HBsAg) loss is associated with improved clinical outcomes for individuals with chronic hepatitis B (CHB); however, the effects of varying HBsAg levels on clinical outcomes in diverse cohorts are understudied. METHODS: In this cross-sectional, multicentre, retrospective study, the data on adult subjects enrolled in the Canadian HBV Network with CHB seen from 1 January 2012 to 30 January 2021 with the treatment and virologic data within 1 year of HBsAg testing were analyzed. Patients were tested for HBsAg using qualitative (for HBsAg-negative samples) and/or commercial quantitative assays. Fibrosis or hepatic necroinflammation was determined by the liver stiffness measurement (LSM). The baseline data were summarized using descriptive statistics and compared by using univariable/multivariable analyses. RESULTS: This study included 844 CHB patients, with a median age of 49.6 years (IQR 40.1-60.5), and 37% were female. In total, 751 patients (78.6%) had known ethnicity data, and 76.7% self-reported as Asian, 11.4% as Black, 6.8% as White, and 4.8% as other. Among the 844 patients, 237 (28.0%) were HBsAg (-) (1000 IU/mL. Overall, 80% (682) had known HBeAg status at the last follow-up, and the majority (87.0%) were HBeAg-negative. In addition, 54% (461/844) had prior antiviral therapy, 19.7% of which (16.3, 23.7, n = 91) were HBsAg (-). The treated patients had a lower risk of cirrhosis (16.46, 95% CI 1.89-143.39, p = 0.01) or HCC (8.23, 95% CI 1.01-67.39, p = 0.05) than the untreated patients. A lower proportion of the HBsAg-loss group had cirrhosis (5.7% vs. 10.9%, p = 0.021) and HCC (0.9% vs. 6.2%, p = 0.001). CONCLUSION: In this retrospective, ethnically diverse cohort study, CHB patients who received antiviral therapy and/or had HBsAg loss were less likely to develop cirrhosis and HCC, confirming the results of the studies in less diverse cohorts. No association was found between the qHBsAg level and fibrosis determined with LSM. Individuals who achieved HBsAg loss had low-level qHBsAg within 1 year of seroclearance.


Assuntos
Carcinoma Hepatocelular , Hepatite B Crônica , Neoplasias Hepáticas , Adulto , Humanos , Feminino , Pessoa de Meia-Idade , Masculino , Antígenos de Superfície da Hepatite B , Vírus da Hepatite B/genética , Estudos Retrospectivos , Antígenos E da Hepatite B , Antígenos de Superfície , Estudos de Coortes , Estudos Transversais , Carcinoma Hepatocelular/tratamento farmacológico , Canadá/epidemiologia , Neoplasias Hepáticas/tratamento farmacológico , Antivirais/uso terapêutico , Cirrose Hepática/diagnóstico , Cirrose Hepática/tratamento farmacológico , Cirrose Hepática/complicações , DNA Viral
4.
Eur J Gastroenterol Hepatol ; 34(5): 553-559, 2022 05 01.
Artigo em Inglês | MEDLINE | ID: mdl-35421020

RESUMO

OBJECTIVES: The prevalence and effects of anxiety on health-related quality of life and clinical outcomes in cirrhosis are not well understood. This is increasingly relevant during COVID-19. Our aim was to use the Mini-International Neuropsychiatric Interview (MINI) to determine the prevalence of anxiety, its association with clinical outcomes in cirrhosis and to develop a rapid cirrhosis-specific anxiety screening nomogram. METHODS: Adults with a diagnosis of cirrhosis were prospectively recruited as outpatients at three tertiary care hospitals across Alberta and followed for up to 6 months to determine the association with unplanned hospitalization/death. The Hospital Anxiety and Depression scale (HADS) was used as a screening tool as it is free of influence from somatic symptoms. Anxiety was diagnosed using the MINI. RESULTS: Of 304 patients, 17% of patients had anxiety by the MINI and 32% by the HADS. Anxious patients had lower health-related quality of life as assessed by the chronic liver disease questionnaire (P < 0.001) and EuroQol Visual Analogue Scale (P < 0.001), and also had higher levels of frailty using the Clinical Frailty score (P = 0.004). Multivariable analysis revealed smoking and three HADS subcomponents as independent predictors of anxiety. These were used to develop a rapid screening nomogram. CONCLUSION: A formal diagnosis of anxiety was made in approximately one in five patients with cirrhosis, and it was associated with worse HrQoL and frailty. The use of a 4-question nonsomatic symptom-based nomogram requires validation but is promising as a rapid screen for anxiety in cirrhosis.


Assuntos
COVID-19 , Fragilidade , Adulto , Ansiedade/diagnóstico , Ansiedade/epidemiologia , Depressão/diagnóstico , Depressão/epidemiologia , Depressão/psicologia , Fragilidade/complicações , Humanos , Cirrose Hepática/complicações , Cirrose Hepática/diagnóstico , Cirrose Hepática/epidemiologia , Nomogramas , Prevalência , Estudos Prospectivos , Qualidade de Vida
5.
Gastrointest Endosc ; 96(1): 28-35.e1, 2022 07.
Artigo em Inglês | MEDLINE | ID: mdl-35124074

RESUMO

BACKGROUND AND AIMS: The aim of this study was to evaluate the safety and effectiveness of Hemospray (Cook Medical, Winston-Salem, NC, USA), a hemostatic powder, as monotherapy for active peptic ulcer bleeding. METHODS: In this prospective, multicenter, single-arm study, patients with Forrest Ia or Ib peptic ulcers underwent endoscopic application of Hemospray as treatment of first intent. Effectiveness endpoints were successful hemostasis at the end of the index endoscopy, recurrent bleeding within 72 hours and from 72 hours to 30 days, adverse events requiring reintervention or resulting in morbidity or mortality, and 30-day mortality. RESULTS: Hemospray was successfully administered in 98.5% of patients (66/67). Hemostasis was achieved at the index endoscopy in 90.9% of patients (60/66) with Hemospray alone and in an additional 4 patients treated with additional modalities, yielding an overall hemostasis rate of 97.0% (64/66). Rebleeding occurred in 13.3% of patients (8/60), 5 within 72 hours and 3 between 72 hours and 30 days. Two cases of perforation and 2 patient deaths occurred during the study, but none of these cases or any other adverse events were attributed to the use of Hemospray. The rate of early rebleeding was significantly higher in patients with Forrest Ia ulcers compared with patients with Forrest Ib ulcers. Higher rates of early bleeding in patients with Forrest Ia ulcers is consistent with results from studies where Hemospray was used as rescue after failure of conventional methods. CONCLUSIONS: Hemospray is an effective initial treatment for patients with active peptic ulcer bleeding, but care should be taken to monitor for recurrent bleeding. (Clinical trial registration number: NCT01306864.).


Assuntos
Hemostase Endoscópica , Hemostáticos , Úlcera Péptica , Endoscopia Gastrointestinal , Hemostase Endoscópica/métodos , Hemostáticos/uso terapêutico , Humanos , Minerais/uso terapêutico , Úlcera Péptica/induzido quimicamente , Úlcera Péptica Hemorrágica/induzido quimicamente , Úlcera Péptica Hemorrágica/tratamento farmacológico , Pós , Estudos Prospectivos , Recidiva , Resultado do Tratamento , Úlcera/terapia
6.
Adv Ther ; 38(8): 4425-4441, 2021 08.
Artigo em Inglês | MEDLINE | ID: mdl-34254257

RESUMO

INTRODUCTION: People with type 2 diabetes mellitus (T2DM) and diabetic kidney disease (DKD) have increased morbidity and mortality risk. Angiotensin-converting enzyme inhibitors (ACEi) or angiotensin II receptor blockers (ARB) are recommended to slow kidney function decline in DKD. This representative, real-world data analysis of patients with T2DM was performed to detect onset of DKD and determine methods and timing of DKD diagnosis and time to initiation of ACEi/ARB therapy. METHODS: Patients diagnosed with T2DM before January 1, 2016 who developed DKD between January 1, 2017 and June 30, 2019 were identified from a longitudinal ambulatory electronic health record (EHR) dataset (Veradigm Inc). Each record was analyzed using the CLinical INTelligence engine (CLINT™, HealthPals, Inc.) to identify delays and gaps in diagnosing DKD. DKD was diagnosed through two reduced estimated glomerular filtration rate (eGFR; < 60 mL/min/1.73 m2) measurements at least 90 days apart, a single elevated urine albumin-to-creatinine ratio (UACR; > 30 mg/g) measurement, or ICD-9/10 diagnosis codes for DKD and/or albuminuria. Time to diagnose (TTD), time to treat (TTT), and diagnosis to treatment time were assessed. RESULTS: Of 6,499,409 patients with T2DM before January 2016, 245,978 developed DKD between January 1, 2017 and June 30, 2019. In this DKD cohort, ca. 50% were first identified through EHR diagnosis and ca. 50% by UACR or eGFR lab-based diagnosis. In patients who had UACR/eGFR assessed, more than 90% exhibited DKD-level results on the first diagnostic test. Average TTD after eGFR labs was 2 years; average TTT with ACEi/ARB was 6-9 months after DKD lab evidence. The majority of patients who developed DKD received ACEi/ARB therapy 6-7 months after diagnosis. CONCLUSION: In a contemporary, large national cohort of patients with T2DM, progression to DKD was common but likely underrepresented. The low rate of DKD-screening labs, along with sizable delays in diagnosis of DKD and initiation of ACEi/ARB therapy, indicates that many patients who progress to DKD are not being properly treated.


Diabetic kidney disease is kidney disease that occurs in patients with type 2 diabetes and is associated with greater risk of death and other adverse cardiovascular and kidney outcomes. Unfortunately, diabetic kidney disease is underdiagnosed because of lack of awareness and its early asymptomatic presentation. Early detection and treatment of diabetic kidney disease with medicines such as angiotensin-converting enzyme inhibitors (also known as ACE inhibitors) or angiotensin II receptor blockers (also known as ARBs) is important for the prevention of disease progression and the development of other serious conditions. This real-world analysis evaluated electronic health record data from more than 6 million patients with diabetes to detect the onset of diabetic kidney disease and to determine timing of treatment and gaps in medical care. Results from the study show that there are often significant delays in the diagnosis of diabetic kidney disease, even when laboratory evidence is available. Furthermore, many patients are not undergoing regular renal function testing, thus missing the opportunity for diagnosis (and subsequent treatment) of earlier onset, less severe disease. After diagnosis, patients with diabetic kidney disease experience significant delay until they receive appropriate treatment with an ACE inhibitor or ARB. The low rate of kidney function screening coupled with delays in diagnosis and treatment initiation suggest that many patients who progress to diabetic kidney disease are not being properly treated. The results from this study highlight the need to improve diagnostic and treatment protocols to address these significant gaps in care.


Assuntos
Diabetes Mellitus Tipo 2 , Nefropatias Diabéticas , Albuminúria/diagnóstico , Antagonistas de Receptores de Angiotensina/uso terapêutico , Inibidores da Enzima Conversora de Angiotensina/uso terapêutico , Diabetes Mellitus Tipo 2/complicações , Diabetes Mellitus Tipo 2/diagnóstico , Diabetes Mellitus Tipo 2/tratamento farmacológico , Nefropatias Diabéticas/diagnóstico , Humanos
7.
Cancer Epidemiol Biomarkers Prev ; 30(6): 1139-1148, 2021 06.
Artigo em Inglês | MEDLINE | ID: mdl-33972367

RESUMO

BACKGROUND: Male circumcision reduces the risk of human immunodeficiency virus infection in men. We assessed the effect of male circumcision on the incidence and natural history of human papillomavirus (HPV) in a randomized clinical trial in Kisumu, Kenya. METHODS: Sexually active, 18- to 24-year-old men provided penile exfoliated cells for HPV DNA testing every 6 months for 2 years. HPV DNA was detected via GP5+/6+ PCR in glans/coronal sulcus and in shaft samples. HPV incidence and persistence were assessed by intent-to-treat analyses. RESULTS: A total of 2,193 men participated (1,096 randomized to circumcision; 1,097 controls). HPV prevalence was 50% at baseline for both groups and dropped to 23.7% at 24 months in the circumcision group, and 41.0% in control group. Incident infection of any HPV type over 24 months was lower among men in the circumcision group than in the control group [HR = 0.61; 95% confidence interval (CI), 0.52-0.72]. Clearance rate of any HPV infection over 24 months was higher in the circumcision group than in the control group (HR = 1.87; 95% CI, 1.49-2.34). Lower HPV point-prevalence, lower HPV incidence, and higher HPV clearance in the circumcision group were observed in glans but not in shaft samples. CONCLUSION: Male circumcision reduced the risk of HPV acquisition and reinfection, and increased HPV clearance in the glans. IMPACT: Providing voluntary, safe, and affordable male circumcision should help reduce HPV infections in men, and consequently, HPV-associated disease in their partners.


Assuntos
Circuncisão Masculina/estatística & dados numéricos , Infecções por Papillomavirus/epidemiologia , Doenças do Pênis/epidemiologia , Pênis/virologia , Infecção Persistente/epidemiologia , Adolescente , Alphapapillomavirus/genética , Alphapapillomavirus/isolamento & purificação , DNA Viral/isolamento & purificação , Humanos , Incidência , Análise de Intenção de Tratamento , Quênia , Masculino , Infecções por Papillomavirus/diagnóstico , Infecções por Papillomavirus/prevenção & controle , Infecções por Papillomavirus/virologia , Doenças do Pênis/diagnóstico , Doenças do Pênis/prevenção & controle , Doenças do Pênis/virologia , Pênis/cirurgia , Infecção Persistente/diagnóstico , Infecção Persistente/prevenção & controle , Infecção Persistente/virologia , Resultado do Tratamento , Adulto Jovem
8.
Int J STD AIDS ; 31(12): 1202-1211, 2020 10.
Artigo em Inglês | MEDLINE | ID: mdl-32928051

RESUMO

Prospective data are limited on human papillomavirus (HPV) acquisition and clearance among circumcised men from resource-limited geographical regions, particularly Africa. The goal of this study was to estimate incidence and clearance of type-specific genital HPV infection in men. Penile exfoliated cell specimens were collected from the glans/coronal sulcus and shaft of 1,037 circumcised Kenyan men at baseline and 6-, 12- and 18-month follow-up visits between 2003-2007. Specimens were tested with GP5+/6+ PCR to detect 44 HPV types. The median age of participants at baseline was 21 years (range 18-28). The 12- and 18-month incidence rates (IRs) for any HPV were 34.9/100 person-years (95% confidence interval [CI]: 31.2-39.0) and 36.4/100 person-years (95% CI: 32.9-40.2), respectively. The 18-month cumulative risk for high-risk HPV was 30% compared to 16% for low-risk HPV. Cumulative risk was not associated with age or anatomical site. The estimated probability of any HPV infection clearing by 12 months was 0.92. Time until HPV clearance was not associated with age, anatomical site, or whether HPV infection type was high-risk or low-risk. HPV IRs among circumcised men in this study were comparable to other circumcised populations.


Assuntos
Circuncisão Masculina , Papillomaviridae/isolamento & purificação , Infecções por Papillomavirus/epidemiologia , Pênis/virologia , Adolescente , Adulto , Humanos , Incidência , Quênia/epidemiologia , Masculino , Papillomaviridae/genética , Infecções por Papillomavirus/diagnóstico , Doenças do Pênis , Reação em Cadeia da Polimerase , Infecções Sexualmente Transmissíveis/complicações , Adulto Jovem
9.
JAMA Ophthalmol ; 137(9): 1045-1051, 2019 Sep 01.
Artigo em Inglês | MEDLINE | ID: mdl-31343672

RESUMO

IMPORTANCE: Cataract surgery is the most commonly performed intraocular surgery. Academic centers have mandates to train the next surgeon generation, but resident roles are often hidden in the consent process. OBJECTIVE: To investigate associations of full preoperative disclosure of the resident role with patient consent rates and subjective experience of the consent process. DESIGN, SETTING, AND PARTICIPANTS: Full scripted disclosure of residents' roles in cataract surgery was delivered by the attending surgeon. Qualitative analysis was conducted from recorded interviews of patients postoperatively regarding consent process experience and choice of whether to allow resident participation. Associations were sought regarding demographic characteristics and consent rates. Patients were recruited though a private community office. Surgery was performed at a single hospital where resident training was routinely conducted. The study included systemically well patients older than 18 years with surgical cataract. They had no previous eye surgery, English fluency, and ability to engage in informed consent decision-making and postsurgery interview. Patients were ineligible if they had monocular cataracts, required additional simultaneous procedures, had history of ocular trauma, or had cataracts that were surgically technically challenging beyond the usual resident skill level. INTERVENTIONS: Eligible patients received an informed consent conversation by the attending physician in accordance with a script describing projected resident involvement in their cataract surgery. Postoperatively, patients were interviewed and responses were analyzed with a quantitative and thematic qualitative approach. MAIN OUTCOMES AND MEASURES: Consent rates to resident participation and qualitative experience of full disclosure process. RESULTS: Ninety-six patients participated. Participants were between ages 50 and 88 years, 53 were men (55.2%), and 75 were white (85.2%). A total of 54 of 96 participants (56.3%; 95% CI, 45.7%-66.4%) agreed to resident involvement. There were no associations between baseline characteristics and consent to resident involvement identified with any confidence, including race/ethnicity (60% [45 of 75] in white patients vs 30.8% [4 of 13] in nonwhite patients; difference, 29.2%; 95% CI, -0.7% to 57.3%; Fisher exact P = .07). Thematically, those who agreed to resident involvement listed trust in the attending surgeon, contributing to education, and supervision as contributing factors. Patients who declined stated fear and perceived risk as reasons. CONCLUSIONS AND RELEVANCE: Our results suggest 45.7% to 66.4% of community private practice patients would consent to resident surgery. Consent rates were not associated with demographic factors. Because residents are less often offered the opportunity to do surgery on private practice patients vs academic center patients, this may represent a resource for resident education.

10.
World Neurosurg ; 130: e62-e67, 2019 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-31195129

RESUMO

BACKGROUND: Multimodality monitoring is used frequently to guide care of patients with severe acute brain injury. The aim of this study was to examine the safety and reliability of multimodality monitoring. METHODS: From a prospective observational database at a Level I trauma center, 501 patients, including 300 men and 201 women (mean age 58 ± 39 years) were identified retrospectively. Each patient received a triple-lumen bolt and 3 monitors: intracranial pressure, brain temperature, and brain oxygen. Intensive care unit and hospital records were examined to identify complications, reasons for device replacement, malfunction and infection. Head computed tomography (CT) scans performed before and after the monitors were inserted were examined for evidence of monitor-related adverse effects. RESULTS: A total of 696 triple-lumen bolts were placed. Median duration of monitoring was 78.88 hours (interquartile range, 33.0-133.2 hours). Bilateral monitors were inserted in 22 (3.16%) patients. Ten (1.43%) monitors were replaced to allow magnetic resonance imaging, and 40 (5.74%) monitors were replaced to facilitate additional cranial surgery. Of 35 (5.02%) monitors that were replaced because they were thought to not be functioning properly, 19 (54.29%) were subsequently found to be functioning normally. Follow-up CT scans were compared with CT scans obtained before insertion of monitors; 9 (2.13%) small contusions and 10 (2.36%) extra-axial hematomas associated with the devices were identified. Based on the CT findings, the hematomas were thought to be associated with the insertion technique rather than the device; 4 hematomas required treatment. Twenty-two (3.16%) devices were incorrectly placed (e.g., the probe was in an infarct or an already existing contusion). Only 1 associated infection was identified. CONCLUSIONS: Placement of intracranial monitors for multimodality neuromonitoring using a triple-lumen bolt appears to be safe. The complication rate is similar to published complication rates for single-lumen bolts and single monitors.


Assuntos
Lesões Encefálicas/diagnóstico , Monitorização Fisiológica/efeitos adversos , Monitorização Fisiológica/métodos , Procedimentos Neurocirúrgicos/efeitos adversos , Procedimentos Neurocirúrgicos/métodos , Idoso , Lesões Encefálicas/cirurgia , Bases de Dados Factuais , Feminino , Humanos , Pressão Intracraniana , Masculino , Pessoa de Meia-Idade , Procedimentos Neurocirúrgicos/instrumentação , Estudos Retrospectivos , Segurança , Tomografia Computadorizada por Raios X
11.
Acta Neuropathol Commun ; 7(1): 67, 2019 04 30.
Artigo em Inglês | MEDLINE | ID: mdl-31039818

RESUMO

Meningiomas are the most common primary brain tumor of adults. The majority are benign (WHO grade I), with a mostly indolent course; 20% of them (WHO grade II and III) are, however, considered aggressive and require a more complex management. WHO grade II and III tumors are heterogeneous and, in some cases, can develop from a prior lower grade meningioma, although most arise de novo. Mechanisms leading to progression or implicated in de novo grade II and III tumorigenesis are poorly understood. RNA-seq was used to profile the transcriptome of grade I, II, and III meningiomas and to identify genes that may be involved in progression. Bioinformatic analyses showed that grade I meningiomas that progress to a higher grade are molecularly different from those that do not. As such, we identify GREM2, a regulator of the BMP pathway, and the snoRNAs SNORA46 and SNORA48, as being significantly reduced in meningioma progression. Additionally, our study has identified several novel fusion transcripts that are differentially present in meningiomas, with grade I tumors that did not progress presenting more fusion transcripts than all other tumors. Interestingly, our study also points to a difference in the tumor immune microenvironment that correlates with histopathological grade.


Assuntos
Progressão da Doença , Neoplasias Meníngeas/genética , Meningioma/genética , Transcriptoma , Biologia Computacional , Feminino , Humanos , Masculino , Neoplasias Meníngeas/patologia , Meningioma/patologia , Gradação de Tumores , Neurofibromina 2/genética , RNA-Seq , Microambiente Tumoral/genética
12.
Gastrointest Endosc ; 89(4): 865-871, 2019 04.
Artigo em Inglês | MEDLINE | ID: mdl-30612959

RESUMO

BACKGROUND AND AIMS: Acute lower GI bleeding is a frequent cause of hospital admission. The objective of this study was to evaluate the safety and performance of a hemostatic powder (TC-325/Hemospray) in the treatment of nonvariceal lower GI bleeding. METHODS: Patients were enrolled into this prospective, multicenter, single-arm study at 4 tertiary care centers in Canada. Fifty patients with active lower GI bleeding of multiple different causes (52 bleeding sites) underwent topical endoscopic application of hemostatic powder. The primary endpoint was powder-related adverse events within 30 days of the index procedure. Secondary endpoints were initial hemostasis as well as recurrent bleeding and mortality within 30 days of the index procedure. RESULTS: Most patients (96%) had a single bleeding site, and most bleeding (73%) was due to polypectomy. Overall, the powder was applied as monotherapy in 13 bleeding sites (25%), as combination therapy in 22 bleeding sites (42.3%), and as rescue therapy in 17 bleeding sites (32.7%). Hemostasis was achieved in 98% of patients. No patient experienced a powder-related adverse event. Five patients (10%) developed recurrent bleeding within 30 days. One patient (2%) died within 30 days of powder application, but the death was not directly related to hemostatic powder use. CONCLUSIONS: The hemostatic powder is a safe and effective option for patients with lower GI bleeding of varying causes, and in particular, postpolypectomy hemorrhage. The hemostatic powder is effective as monotherapy, part of a combination approach, or as a rescue therapeutic option for the treatment of nonvariceal lower GI bleeding. (Clinical trial registration number: NCT02099435.).


Assuntos
Hemorragia Gastrointestinal/terapia , Hemostase Endoscópica/métodos , Hemostáticos/uso terapêutico , Enteropatias/terapia , Minerais/uso terapêutico , Hemorragia Pós-Operatória/terapia , Adulto , Idoso , Idoso de 80 Anos ou mais , Canadá , Doenças do Ceco/terapia , Doenças do Colo/terapia , Pólipos do Colo/cirurgia , Colonoscopia , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Mortalidade , Estudos Prospectivos , Doenças Retais/terapia , Recidiva , Resultado do Tratamento
13.
Aliment Pharmacol Ther ; 49(2): 194-201, 2019 01.
Artigo em Inglês | MEDLINE | ID: mdl-30485460

RESUMO

BACKGROUND: Depression is associated with substantial morbidity and mortality in cirrhosis, but is underdiagnosed and undertreated. AIMS: Using the Mini International Neuropsychiatric Interview (MINI) as a gold-standard, to determine prevalence, predictors, and outcomes of depression, and to develop a screening nomogram for use in cirrhosis patients. METHODS: Cirrhotic outpatients 18-80 years of age, not on anti-depressants, were consecutively recruited from liver clinics at three tertiary care hospitals. Baseline health-related quality of life (HRQoL) and frailty were determined by the chronic liver disease questionnaire, EQ-VAS, Clinical Frailty Scale and Fried Frailty Criteria. Depression was identified using the MINI and participants were followed up to 6 months to determine unplanned hospitalization/death. RESULTS: Of 305 patients, 62% were male; mean age 55(10) years; mean MELD 12.5(5), 61% Child Pugh B/C. Prevalence of depression 18% by MINI. Patients with depression had lower baseline HRQoL and higher frailty scores. Five independently predictive factors were used to develop a clinical nomogram for the diagnosis of clinical depression. These included three Hospital Anxiety and Depression Screening tool variables: "I have lost interest in my appearance" (adjusted odds ratio [aOR] 2.2, P = 0.006), "I look forward with enjoyment to things" (aOR 2.0, P = 0.02), "I feel cheerful" (aOR 2.8, P = 0.002), and two demographic variables: younger age (aOR 0.92, P = 0.001) and not being married or in a common-law relationship (aOR 0.30, P = 0.008). CONCLUSIONS: Depression is common in patients with cirrhosis. It has a significant impact on HRQoL and functional status. The developed clinical nomogram is promising for the rapid screening of depression in patients with cirrhosis.


Assuntos
Depressão/diagnóstico , Depressão/epidemiologia , Cirrose Hepática/diagnóstico , Cirrose Hepática/epidemiologia , Programas de Rastreamento/métodos , Nomogramas , Adolescente , Adulto , Idoso , Idoso de 80 Anos ou mais , Depressão/psicologia , Feminino , Humanos , Cirrose Hepática/psicologia , Masculino , Programas de Rastreamento/psicologia , Pessoa de Meia-Idade , Prevalência , Estudos Prospectivos , Qualidade de Vida/psicologia , Inquéritos e Questionários , Adulto Jovem
14.
BMC Infect Dis ; 18(1): 350, 2018 07 28.
Artigo em Inglês | MEDLINE | ID: mdl-30055581

RESUMO

BACKGROUND: Male circumcision provides men with approximately 60% protection from acquiring HIV infection via heterosexual sex, and has become a key component of HIV prevention efforts in sub-Saharan Africa. Possible mechanisms for this protection include removal of the inflammatory anaerobic sub-preputial environment and the high concentration of Langerhans cells on the inside of the foreskin, both believed to promote local vulnerability to HIV infection. In people who do acquire HIV, viral load is partially determined by infecting partner viral load, potentially mediated by size of infecting inoculum. By removing a portal for virion entry, prior male circumcision could decrease infecting inoculum and thus viral load in men who become HIV-infected, conferring the known associated benefits of slower progression to disease and decreased infectiousness. METHODS: We performed an as-treated analysis of plasma samples collected under a randomized controlled trial of male circumcision for HIV prevention, comparing men based on their circumcision status at the time of HIV acquisition, to determine whether circumcision is associated with lower viral load. Eligible men were seroconverters who had at least one plasma sample available drawn at least 6 months after infection, reported no potential exposures other than vaginal sex and, for those who were circumcised, were infected more than 6 weeks after circumcision, to eliminate the open wound as a confounder. Initial viral load testing indicated that quality of pre-2007 samples might have been compromised during storage and they were excluded, as were those with undetectable or unquantifiable results. Log viral loads were compared between groups using univariable and multivariable linear regression, adjusting for sample age and sexually transmitted infection diagnosis with 3.5 months of seroconversion, with a random effect for intra-individual clustering for samples from the same man. A per-protocol analysis was also performed. RESULTS: There were no viral load differences between men who were circumcised and uncircumcised at the time of HIV infection (means 4.00 and 4.03 log10 copies/mL respectively, p = .88) in any analysis. CONCLUSION: Circumcision status at the time of HIV infection does not affect viral load in men. TRIAL REGISTRATION: The original RCT which provided the samples was ClinicalTrials.gov trial NCT00059371 .


Assuntos
Circuncisão Masculina/estatística & dados numéricos , Infecções por HIV/epidemiologia , Carga Viral/estatística & dados numéricos , Síndrome da Imunodeficiência Adquirida/epidemiologia , Síndrome da Imunodeficiência Adquirida/virologia , Adolescente , Adulto , África Subsaariana/epidemiologia , HIV , Infecções por HIV/sangue , Infecções por HIV/virologia , Soropositividade para HIV/sangue , Soropositividade para HIV/epidemiologia , Soropositividade para HIV/virologia , Heterossexualidade , Humanos , Quênia/epidemiologia , Masculino , Testes Sorológicos , Parceiros Sexuais , Infecções Sexualmente Transmissíveis/sangue , Infecções Sexualmente Transmissíveis/epidemiologia , Infecções Sexualmente Transmissíveis/prevenção & controle , Infecções Sexualmente Transmissíveis/virologia , Carga Viral/fisiologia , Adulto Jovem
15.
Clin Infect Dis ; 66(suppl_3): S161-S165, 2018 04 03.
Artigo em Inglês | MEDLINE | ID: mdl-29617774

RESUMO

Global experts recognize the need to transform conventional models of healthcare to create adolescent responsive health systems. As countries near 80% coverage of voluntary medical male circumcision (VMMC) for those aged 15-49 years, prioritization of younger men becomes critical to VMMC sustainability. This special supplement reporting 9 studies focusing on adolescent VMMC programming and services comes at a critical time. Eight articles report how well adolescents are reached with the World Health Organization's minimum package for comprehensive human immunodeficiency virus (HIV) prevention in South Africa, Zimbabwe, and Tanzania, analyzing motivation, counseling, wound healing, parental involvement, female peer support, quality of in-service communication, and providers' perceptions, and one presents models for achieving high VMMC coverage by 2021. One important finding is that adolescent boys, especially the youngest, experience gaps in their comprehension of key elements in the World Health Organization's minimum package. Although parents, counselors, and providers are involved and supportive, they are inadequately prepared to counsel youth, partly owing to discomfort with adolescent sexuality. At the country level, deliberately prioritizing young adolescents (aged 10-14 years) is likely to achieve national coverage targets more quickly and cost-effectively than continuing to focus on older, harder-to-reach men. The studies in this supplement point to areas where VMMC programs are achieving successes and they reveal areas for improvement. Given that prioritizing adolescents will be the best means of achieving sustainable VMMC for HIV prevention for the foreseeable future, applying the lessons learned here will increase the effectiveness of VMMC programs.


Assuntos
Circuncisão Masculina , Infecções por HIV/prevenção & controle , Adolescente , África Subsaariana , Criança , Análise Custo-Benefício , Infecções por HIV/transmissão , Humanos , Masculino , Programas Nacionais de Saúde , Comportamento Sexual , Adulto Jovem
16.
Am Health Drug Benefits ; 11(9): 480-487, 2018 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-30746019

RESUMO

BACKGROUND: Cataracts are the leading cause of preventable blindness globally. As a result, competence in cataract surgery is an important component of ophthalmology residency training. Residency programs must optimize the number of cataract surgery cases to train proficient physicians. However, the rate of cataract surgery cancellations is high, and some are canceled because of preventable causes. OBJECTIVE: To evaluate the effect of mandatory on-site preadmission testing, including having a physical examination, on resident-performed cataract surgery cancellation rates. METHODS: For this study, patients scheduled for cataract surgery at the Wills Eye Hospital resident cataract clinic between January 2015 and November 2015 were enrolled and randomized into 2 groups: usual care or intervention. The patients randomized to the usual care group were instructed to complete preadmission testing and to have a physical examination with their primary care physician. The patients randomized to the intervention group were escorted to a Wills Eye Hospital-affiliated cardiologist to complete preadmission testing and to have a physical examination. Patients in both groups received a reminder call before the cataract surgery. RESULTS: A total of 441 patients were included in the study-240 patients in the usual care group and 201 patients in the intervention group. The overall cataract surgery cancellation rate was 14.5%; the rate was 12.4% in the intervention group and 16.3% in the usual care group (P = .28). The patients receiving the intervention were more likely to have preadmission testing and a physical examination than the patients in the usual care arm (P <.001). CONCLUSIONS: Facilitating the completion of preadmission testing for patients decreased the rates of resident-performed cataract surgery cancellation at a Wills Eye Hospital resident clinic and has the potential to improve patient outcomes and prevent blindness.

17.
AIDS Care ; 30(sup5): S76-S88, 2018 08.
Artigo em Inglês | MEDLINE | ID: mdl-30897938

RESUMO

The UNAIDS 90-90-90 target has prioritized achieving high rates of viral suppression. We identified factors associated with viral suppression among HIV-positive gay, bisexual, and other men who have sex with men (GBMSM) in Kisumu, Kenya. HIV-positive participants in the Anza Mapema study were offered antiretroviral therapy (ART) regardless of CD4 count. HIV viral load was assessed at baseline and after 6 and 12 months of follow-up. Viral suppression was defined as <1,000 copies/mL. Sociodemographic, sexual behaviors, and psychosocial characteristics were assessed via audio computer-assisted self interview. We used generalized estimating equations to estimate the associations between baseline and time-dependent predictors and viral suppression at 6 and 12 months. Seventy-five HIV-positive men were enrolled in the Anza Mapema study, of which 63 had at least one viral load measured during follow-up. Among 52 men with a viral load measure at month 6, 37 (71%) were on ART and virally suppressed. Among 59 men with a viral load measure at month 12, 37 (63%) were on ART and virally suppressed. In the final multivariable model, men who reported receptive or versatile sexual position during anal intercourse with a male partner had reduced odds of viral suppression (aOR = 0.20; 95% CI: 0.08-0.50). Greater levels of coping self-efficacy were associated with increased odds of viral suppression (aOR = 1.10; 95% CI: 1.03-1.16). Despite extensive initiation, retention, and adherence support, the rate of viral suppression in this population did not meet the UNAIDS 90-90-90 target (81% for individuals aware of their HIV status). Pervasive stigma against male-male sex, especially men who practice receptive anal sex, may underlie our findings, which highlight the need for advocacy and stigma reduction efforts. Because coping self-efficacy was a protective factor, efforts to promote resilience in addition to healthy sexual identity development may lead to improved care outcomes among GBMSM in this area.


Assuntos
Infecções por HIV/virologia , HIV/isolamento & purificação , Homossexualidade Masculina , Minorias Sexuais e de Gênero , Carga Viral , Adulto , Fármacos Anti-HIV/uso terapêutico , Conscientização , Contagem de Linfócito CD4 , Infecções por HIV/tratamento farmacológico , Humanos , Quênia , Masculino , Pessoa de Meia-Idade , Parceiros Sexuais , Estigma Social , Adulto Jovem
18.
PLoS One ; 12(9): e0184170, 2017.
Artigo em Inglês | MEDLINE | ID: mdl-28880904

RESUMO

As countries scale up adult voluntary medical male circumcision (VMMC) for HIV prevention, they are looking ahead to long term sustainable strategies, including introduction of early infant male circumcision (EIMC). To address the lack of evidence regarding introduction of EIMC services in sub-Saharan African settings, we conducted a simultaneous, prospective comparison of two models of EIMC service delivery in Homa Bay County, Kenya. In one division a standard delivery package (SDP) was introduced and included health facility-based provision of EIMC services with community engagement for client referral versus in a different division a standard package plus (SDPplus) that included community-delivered EIMC services. Babies 1-60 days old were eligible for EIMC. A representative sample of mothers and fathers of baby boys at 16 health facilities was surveyed. We examined differences between mothers and fathers in the SDP and SDPplus divisions and identified factors associated with EIMC uptake. We report adjusted prevalence ratios (aPR). Of 1660 mothers interviewed, 1501 (89%) gave approval to contact the father, and 1259 fathers (84%) were interviewed. The proportion of babies circumcised was slightly greater in the SDPplus division than the SDP division (27.3% vs 23.7%), but the difference was not significant (p = 0.08). In adjusted analyses, however, the prevalence of babies being circumcised was greater in the SDPplus division (aPR = 1.23, 95% CI:1.04-1.45) and the factors associated with a baby being circumcised were the mother having received information about EIMC (during pregnancy, aPR = 4.81, 95% CI: 2.21-3.42), having discussed circumcision with the father if married or cohabiting (aPR = 5.39, 95% CI: 3.31-8.80) or being single (aPR = 5.67, 95% CI: 3.31-9.69), perceiving herself to be living with HIV (aPR = 1.39, 95% CI: 1.15-1.67), or having a post-secondary education (aPR = 1.33, 95% CI: 1.04-1.69), and the father being Muslim (aPR = 1.85, 95% CI: 1.29-2.65) or circumcised (aPR = 1.34, 95% CI: 1.13-1.59). The median age of 2117 babies circumcised was 8 days (IQR: 1-36), and the median weight was 3.6 kg (IQR: 3.2-4.4). There were 6 moderate adverse events (AEs) (0.28%); 5 severe AEs (0.24%), all involving an injury to the glans penis, requiring hospitalization and corrective surgery; and one death probably related to the procedure. There were no AEs among the 365 procedures performed outside health facilities. Information and education campaigns must reach members of the general population, especially men and fathers, who are influential to the EIMC decision. Serious AEs using the Mogen clamp are rare, but do occur and require efficient, reliable emergency back-up. Our results can assist countries considering scale-up of EIMC services for HIV prevention as their adult VMMC programs mature.


Assuntos
Circuncisão Masculina , Serviços de Saúde Materno-Infantil , Modelos Teóricos , Adulto , Pai , Humanos , Lactente , Recém-Nascido , Quênia , Masculino , Mães , Análise Multivariada , Estudos Prospectivos
19.
Clin Infect Dis ; 65(1): 13-19, 2017 Jul 01.
Artigo em Inglês | MEDLINE | ID: mdl-28535298

RESUMO

BACKGROUND: Patients chronically infected with genotype 3 hepatitis C virus (HCV) have faster disease progression and are less responsive to current direct-acting antiviral regimens than patients infected with other genotypes. We conducted an open-label trial to evaluate the safety, tolerability, and efficacy of ledipasvir and sofosbuvir plus ribavirin in patients with genotype 3 HCV infection. METHODS: We enrolled treatment-naive patients with and without compensated cirrhosis at 15 sites in Canada. All patients were treated with ledipasvir-sofosbuvir (90 mg and 400 mg) plus weight-based ribavirin for 12 weeks. The primary endpoint was sustained virologic response 12 weeks after treatment (SVR12). Secondary endpoints included evaluation of baseline and treatment-emergent drug resistance. RESULTS: Of the 111 patients enrolled, 105 (95%) had subtype 3a HCV and 39 (35%) had compensated cirrhosis. SVR12 was achieved by 99 of 111 patients (89%; 95% confidence interval, 82%-94%). Of the 39 patients with cirrhosis, 31 (79%) achieved SVR12, compared with 68 of 72 (94%) patients without cirrhosis. No treatment-emergent resistance mutations occurred in those who failed treatment. One patient discontinued treatment due to liver cancer and died 22 days after treatment discontinuation. The most common adverse events were fatigue (51%), headache (36%), and nausea (23%). CONCLUSIONS: In this multicenter trial involving treatment-naive patients with genotype 3 HCV, 12 weeks of ledipasvir-sofosbuvir provided a high level of SVR in those without cirrhosis. CLINICAL TRIALS REGISTRATION: NCT02413593.


Assuntos
Antivirais/uso terapêutico , Benzimidazóis/uso terapêutico , Fluorenos/uso terapêutico , Hepacivirus , Hepatite C Crônica/tratamento farmacológico , Ribavirina/uso terapêutico , Uridina Monofosfato/análogos & derivados , Adulto , Idoso , Antivirais/efeitos adversos , Antivirais/farmacologia , Benzimidazóis/efeitos adversos , Benzimidazóis/farmacologia , Farmacorresistência Viral/genética , Feminino , Fluorenos/efeitos adversos , Fluorenos/farmacologia , Genótipo , Hepacivirus/efeitos dos fármacos , Hepacivirus/genética , Hepatite C Crônica/virologia , Humanos , Cirrose Hepática/tratamento farmacológico , Cirrose Hepática/virologia , Masculino , Pessoa de Meia-Idade , Ribavirina/efeitos adversos , Ribavirina/farmacologia , Sofosbuvir , Resposta Viral Sustentada , Uridina Monofosfato/efeitos adversos , Uridina Monofosfato/farmacologia , Uridina Monofosfato/uso terapêutico
20.
Saudi J Gastroenterol ; 23(2): 97-104, 2017.
Artigo em Inglês | MEDLINE | ID: mdl-28361840

RESUMO

BACKGROUND/AIMS: Sarcopenia, muscle weakness, and physical frailty are independent predictors of mortality in cirrhosis. These adverse prognostic factors are potentially modifiable with lifestyle interventions, including adequate nutritional intake and physical activity. Our aim was to identify patient-perceived barriers and enablers to these interventions. PATIENTS AND METHODS: Adult patients with cirrhosis were prospectively recruited from two tertiary care liver clinics. Patients were excluded if they had hepatocellular carcinoma beyond transplant criteria, other active malignancy, or advanced chronic disease. RESULTS: A total of 127 patients (mean age: 60 ± 9 years, 58% males, and 48% with Child-Pugh-B/C (CP-B/C) disease) were included. Two-thirds of the patients had cirrhosis related to alcohol or hepatitis C. CP-B/C patients were more likely to take oral nutritional supplements (56% vs 29%) and less likely to consume animal protein daily (66% vs 85%) when compared to CP-A patients. Early satiety, altered taste, and difficulty in buying/preparing meals were more common in CP-B/C patients and even present in 20-30% of CP-A patients. Most patients reported adequate funds to purchase food. As quantified by the International Physical Activity Questionnaire-Short Form, 47% reported low activity levels, with no significant differences between groups. CP-B/C patients were more fatigued with exercise, however, overall Exercise Benefits/Barriers Scale scores were similar across groups. CONCLUSIONS: Barriers to nutritional intake and physical activity are common in cirrhosis and should be evaluated and treated in all patients. Asking simple screening questions in clinic and referring at-risk patients to expert multidisciplinary providers is a reasonable strategy to address these barriers. Future research should evaluate techniques to overcome modifiable barriers and enhance enablers.


Assuntos
Hepatite C/epidemiologia , Cirrose Hepática Alcoólica/epidemiologia , Cirrose Hepática/psicologia , Idoso , Feminino , Indicadores Básicos de Saúde , Humanos , Estilo de Vida , Masculino , Pessoa de Meia-Idade , Estudos Prospectivos , Fatores de Risco
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