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1.
CMAJ ; 195(3): E108-E114, 2023 01 23.
Artículo en Inglés | MEDLINE | ID: mdl-36690364

RESUMEN

BACKGROUND: Uptake of virtual care increased substantially during the first year of the COVID-19 pandemic. The aim of this study was to evaluate whether a shift from in-person to virtual visits by primary care physicians was associated with increased use of emergency departments among their enrolled patients. METHODS: We conducted an observational study of monthly virtual visits and emergency department visits from Apr. 1, 2020, to Mar. 31, 2021, using administrative data from Ontario, Canada. We used multivariable regression analysis to estimate the association between the proportion of a physician's visits that were delivered virtually and the number of emergency department visits among their enrolled patients. RESULTS: The proportion of virtual visits was higher among female, younger and urban physicians, and the number of emergency department visits was lower among patients of female and urban physicians. In an unadjusted analysis, a 1% increase in a physician's proportion of virtual visits was found to be associated with 11.0 (95% confidence interval [CI] 10.1-11.8) fewer emergency department visits per 1000 rostered patients. After controlling for covariates, we observed no statistically significant change in emergency department visits per 1% increase in the proportion of virtual visits (0.2, 95% CI -0.5 to 0.9). INTERPRETATION: We did not find evidence that patients substituted emergency department visits in the context of decreased availability of in-person care with their family physician during the first year of the COVID-19 pandemic. Future research should focus on the long-term impact of virtual care on access and quality of patient care.


Asunto(s)
COVID-19 , Servicio de Urgencia en Hospital , Pandemias , Telemedicina , Femenino , Humanos , Ontario , Atención Primaria de Salud
2.
Int J Equity Health ; 22(1): 112, 2023 06 06.
Artículo en Inglés | MEDLINE | ID: mdl-37280588

RESUMEN

BACKGROUND: Hepatitis C is curable with direct-acting antivirals (DAAs). However, treatment uptake remains low among marginalized populations such as people who inject drugs. We sought to understand challenges to treatment uptake with DAAs among people living with hepatitis C and compare treatment experiences between people who do and do not inject prescription and/or unregulated drugs. METHODS: We conducted a qualitative study using focus groups with 23 adults aged 18 years and over who completed DAA treatment or were about to begin such treatment at the time of the study. Participants were recruited from hepatitis C treatment clinics across Toronto, Ontario. We drew upon stigma theory to interpret participants' accounts. RESULTS: Following analysis and interpretation, we generated five theoretically-informed themes characterizing the experiences of individuals accessing DAAs: "being 'worthy' of the cure", "spatially enacted stigma", "countering social and structural vulnerability: the importance of peers", "identity disruption and contagion: attaining a 'social cure'" and "challenging stigma with population-based screening". Overall, our findings suggest that structural stigma generated and reproduced through healthcare encounters limits access to DAAs among people who inject drugs. Peer-based programs and population-based screening were proposed by participants as mechanisms for countering stigma within health care settings and 'normalizing' hepatitis C among the general population. CONCLUSIONS: Despite the availability of curative therapies, access to such treatment for people who inject drugs is limited by stigma enacted in and structured within healthcare encounters. Developing novel, low-threshold delivery programs that remove power differentials and attend to the social and structural determinants of health and reinfection are needed to facilitate further scale up of DAAs and support the goal of eradicating hepatitis C as a public health threat.


Asunto(s)
Hepatitis C Crónica , Hepatitis C , Adulto , Humanos , Adolescente , Antivirales/uso terapéutico , Hepatitis C Crónica/tratamiento farmacológico , Hepatitis C/tratamiento farmacológico , Hepatitis C/epidemiología , Hepacivirus , Estigma Social
3.
J Viral Hepat ; 29(3): 205-208, 2022 03.
Artículo en Inglés | MEDLINE | ID: mdl-34820967

RESUMEN

The COVID-19 pandemic interrupted routine healthcare services. Hepatitis B virus (HBV) and hepatitis C virus (HCV) infections are often asymptomatic, and therefore, screening and on/post-treatment monitoring are required. Our aim was to determine the effect of the first, second and third waves of the pandemic on HBV and HCV testing in Ontario, Canada. We extracted data from Public Health Ontario for HBV and HCV specimens from 1 January 2019 to 31 May 2021. Testing volumes were evaluated and stratified by age, sex and region. Changes in testing volumes were analysed by per cent and absolute change. Testing volumes decreased in April 2020 with the first wave of the pandemic and recovered to 72%-75% of prepandemic volumes by the end of the first wave. HBsAg testing decreased by 33%, 18% and 15%, and HBV DNA testing decreased by 37%, 27% and 20%, in each consecutive wave. Anti-HCV testing decreased by 35%, 21% and 19%, and HCV RNA testing decreased by 44%, 30% and 36% in each consecutive wave. These trends were consistent by age, region and sex. Prenatal HBV testing volumes were stable. In conclusion, significant decreases in HBV and HCV testing occurred during the first three waves of the pandemic and have not recovered. In addition to direct consequences on viral hepatitis elimination efforts, these data provide insight into the impacts of the pandemic on chronic disease screening and management. Strategies to make up for missed testing will be critical to avoid additional consequences of COVID-19 long after the pandemic has resolved.


Asunto(s)
COVID-19 , Hepatitis B , Hepatitis C , Femenino , Hepatitis B/diagnóstico , Hepatitis B/epidemiología , Antígenos de Superficie de la Hepatitis B , Virus de la Hepatitis B/genética , Hepatitis C/diagnóstico , Hepatitis C/epidemiología , Humanos , Ontario/epidemiología , Pandemias , Embarazo , SARS-CoV-2
4.
Clin Gastroenterol Hepatol ; 19(11): 2398-2406.e1, 2021 11.
Artículo en Inglés | MEDLINE | ID: mdl-32629131

RESUMEN

BACKGROUND & AIMS: Direct-acting antivirals (DAAs) cure most cases of chronic hepatitis C virus (HCV) infection. However, a small percentage of patients relapse with reappearance of viremia after a full course of therapy. Although most who relapse require retreatment, some patients spontaneously clear HCV without additional therapy. We studied patients who relapsed with detectable HCV RNA after a full course of DAA therapy and then spontaneously cleared the HCV infection without retreatment. METHODS: We performed a case-control study of patients who spontaneously cleared chronic HCV infection following a documented relapse after DAA therapy at the Toronto Centre for Liver Disease, from January 2014 through December 2017. We collected clinical information at baseline, 12 weeks after treatment, and 6 months after relapse and compared data among spontaneous clearers, patients with persistent relapse, and patients who achieved a sustained virologic response to therapy 12 weeks after treatment (SVR12). The strength and breadth of interferon gamma cytokine secretion by HCV-specific T cells from peripheral blood were quantified using the ELISPOT assay. RESULTS: Of the 1032 individuals with chronic HCV infection who were treated with DAAs, 93 patients had a documented relapse. Of these patients, 12 patients (13%) spontaneously cleared HCV within 6 months after the documented relapse without additional therapy. The spontaneous clearers had low levels of HCV RNA (<4 log IU/mL in 11 of 12) and normal levels of alanine aminotransferase at the time of relapse, much like patients with an SVR12. There was no significant difference between the spontaneous clearance group and the SVR12 group in magnitude and breadth of HCV-specific T cell responses. CONCLUSIONS: In a case-control study of patients who spontaneously cleared chronic HCV infection following a relapse after DAA therapy, we found that it is important to confirm viremia prior to retreatment after the relapse-particularly for individuals with low levels of HCV RNA and normal or near-normal levels of alanine aminotransferase after treatment.


Asunto(s)
Hepatitis C Crónica , Hepatitis C , Antivirales/uso terapéutico , Estudios de Casos y Controles , Hepacivirus/genética , Hepatitis C/tratamiento farmacológico , Hepatitis C Crónica/tratamiento farmacológico , Humanos , Recurrencia , Respuesta Virológica Sostenida
5.
Clin Gastroenterol Hepatol ; 19(7): 1451-1458.e4, 2021 07.
Artículo en Inglés | MEDLINE | ID: mdl-32763480

RESUMEN

BACKGROUND & AIMS: Global elimination of hepatitis C virus (HCV) will require increases in diagnosis. Point of care (POC) tests that detect antibodies against HCV can be useful for testing large and difficult to reach populations. The most accurate POC test requires a 20 min read time to identify antibody-positive samples. We investigated whether viremic patients could be identified using a shorter read time, to increase efficiency and reduce the need for reflex tests (a follow-up test for HCV RNA on the same specimen to confirm viremia). METHODS: Patients with past or current HCV infections provided samples at 2 clinics in Canada for evaluation by the OraQuick HCV Rapid antibody POC test. A community HCV-screening program in Madrid, Spain (real-world cohort) invited people to be tested for HCV with the same OraQuick test. Patients provided samples of whole blood, via finger prick. Fingerprick samples were tested immediately after collection. In the clinic cohort, photographs of the developing test were taken at 15 second intervals, and blinded readers recorded the time to positivity. In the real-world cohort, readers recorded the OraQuick result at 5 minutes, and each minute after, up to 10 minutes, and then again at 20 minutes; viremia was then evaluated using a POC HCV RNA test (GeneXpert HCV Viral Load Assay). Sera from viremic and non-viremic clinic patients were used to quantify antibody titers to investigate the relationship between the time of band appearance and antibody concentration. Fisher's exact test and exact logistic regression were used to determine factors associated with a positive result at 5 minutes. RESULTS: Blood from all viremic patients produced a positive result in the antibody POC test by 5 min. Median time to a positive result for 171 viremic patients was 2.6 min (range, 1.8-4.6 min), vs 4.1 min (range, 2.3-14.4 min) for 108 patients with resolved infection (P < .001). The 5-min threshold identified all viremic cases among 176 HCV antibody-positive patients in the real-world cohort, confirmed by testing for HCV RNA. In the pooled cohorts, antibody positivity at 5 min identified viremic patients with 100% sensitivity (95% CI, 98.4%-100%); the negative predictive value was 100% (95% CI, 94.9%-100%). The positive predictive value at 5 min was 62.0% (95% CI, 56.7%-67.0%) and therefore insufficient alone to detect viremia; an HCV RNA test would still be necessary to confirm active infection. CONCLUSIONS: The wait time for the OraQuick HCV Rapid antibody POC blood test can be reduced from 20 min to 5 min and continue to reliably identify patients with HCV infection. Shortening the test time could increase high-throughput screening, reduce loss to follow up, and reduce the need for reflex HCV RNA testing.


Asunto(s)
Hepacivirus , Hepatitis C , Hepacivirus/genética , Hepatitis C/diagnóstico , Anticuerpos contra la Hepatitis C , Humanos , Pruebas en el Punto de Atención , ARN , ARN Viral , Reflejo
6.
CMAJ ; 192(43): E1299-E1305, 2020 Oct 26.
Artículo en Inglés | MEDLINE | ID: mdl-33106301

RESUMEN

BACKGROUND: Ontario is 1 of 5 provinces that immunize adolescents for hepatitis B virus (HBV), despite the World Health Organization recommendation for universal birth dose vaccination. One rationale for not vaccinating at birth is that universal prenatal screening and related interventions prevent vertical transmission. The aims of our study were to evaluate the uptake and epidemiology of prenatal HBV screening, and to determine the number of children in Ontario with a diagnosis of HBV before adolescent vaccination. METHODS: We extracted data from ICES, Public Health Ontario and Better Outcomes & Registry Network (BORN) Ontario databases. We assessed prenatal screening uptake and prevalence of prenatal hepatitis B surface antigen (HBsAg) from 2012 to 2016, as well as subsequent hepatitis B e-antigen (HBeAg) and HBV DNA testing and percent positivity. We used age and region to subcategorize the results. In a separate unlinked analysis, we evaluated the number of children positive for HBV aged 0-11 years who were born in Ontario from 2003 to 2013. RESULTS: From 2012 to 2016, 93% of pregnant women were screened for HBV, with an HBsAg prevalence of 0.6%. Prevalence of HBsAg increased with age, peaking at older than 45 years at 3%. North Toronto had the highest overall prevalence of 1.5%, whereas northern Ontario had the lowest. Of women who were HBsAg positive, HBeAg and HBV DNA tests were subsequently ordered in 13% and 38%, respectively. Of children born in Ontario between 2003 and 2013, 139 of 23 759 tested positive for HBV. INTERPRETATION: Prenatal HBV screening is not universal and subsequent evaluation is poor, limiting optimal intervention and possibly contributing to some Ontario-born children being given a diagnosis of HBV before age 12 years. These findings underscore the limitations of the province's adolescent vaccination strategy.


Asunto(s)
Hepatitis B/epidemiología , Transmisión Vertical de Enfermedad Infecciosa/prevención & control , Complicaciones Infecciosas del Embarazo/epidemiología , Diagnóstico Prenatal , Adolescente , Adulto , Factores de Edad , Niño , Servicios de Salud del Niño , Preescolar , Costo de Enfermedad , Femenino , Hepatitis B/prevención & control , Vacunas contra Hepatitis B , Humanos , Lactante , Recién Nacido , Masculino , Persona de Mediana Edad , Ontario/epidemiología , Embarazo , Complicaciones Infecciosas del Embarazo/prevención & control , Prevalencia , Sistema de Registros , Adulto Joven
7.
N Engl J Med ; 375(7): 631-43, 2016 Aug 18.
Artículo en Inglés | MEDLINE | ID: mdl-27532829

RESUMEN

BACKGROUND: Primary biliary cholangitis (formerly called primary biliary cirrhosis) can progress to cirrhosis and death despite ursodiol therapy. Alkaline phosphatase and bilirubin levels correlate with the risk of liver transplantation or death. Obeticholic acid, a farnesoid X receptor agonist, has shown potential benefit in patients with this disease. METHODS: In this 12-month, double-blind, placebo-controlled, phase 3 trial, we randomly assigned 217 patients who had an inadequate response to ursodiol or who found the side effects of ursodiol unacceptable to receive obeticholic acid at a dose of 10 mg (the 10-mg group), obeticholic acid at a dose of 5 mg with adjustment to 10 mg if applicable (the 5-10-mg group), or placebo. The primary end point was an alkaline phosphatase level of less than 1.67 times the upper limit of the normal range, with a reduction of at least 15% from baseline, and a normal total bilirubin level. RESULTS: Of 216 patients who underwent randomization and received at least one dose of obeticholic acid or placebo, 93% received ursodiol as background therapy. The primary end point occurred in more patients in the 5-10-mg group (46%) and the 10-mg group (47%) than in the placebo group (10%; P<0.001 for both comparisons). Patients in the 5-10-mg group and those in the 10-mg group had greater decreases than those in the placebo group in the alkaline phosphatase level (least-squares mean, -113 and -130 U per liter, respectively, vs. -14 U per liter; P<0.001 for both comparisons) and total bilirubin level (-0.02 and -0.05 mg per deciliter [-0.3 and -0.9 µmol per liter], respectively, vs. 0.12 mg per deciliter [2.0 µmol per liter]; P<0.001 for both comparisons). Changes in noninvasive measures of liver fibrosis did not differ significantly between either treatment group and the placebo group at 12 months. Pruritus was more common with obeticholic acid than with placebo (56% of patients in the 5-10-mg group and 68% of those in the 10-mg group vs. 38% in the placebo group). The rate of serious adverse events was 16% in the 5-10-mg group, 11% in the 10-mg group, and 4% in the placebo group. CONCLUSIONS: Obeticholic acid administered with ursodiol or as monotherapy for 12 months in patients with primary biliary cholangitis resulted in decreases from baseline in alkaline phosphatase and total bilirubin levels that differed significantly from the changes observed with placebo. There were more serious adverse events with obeticholic acid. (Funded by Intercept Pharmaceuticals; POISE ClinicalTrials.gov number, NCT01473524; Current Controlled Trials number, ISRCTN89514817.).


Asunto(s)
Ácido Quenodesoxicólico/análogos & derivados , Cirrosis Hepática Biliar/tratamiento farmacológico , Adulto , Anciano , Fosfatasa Alcalina/sangre , Ácidos y Sales Biliares/sangre , Densidad Ósea/efectos de los fármacos , Ácido Quenodesoxicólico/efectos adversos , Ácido Quenodesoxicólico/uso terapéutico , Método Doble Ciego , Femenino , Factores de Crecimiento de Fibroblastos/sangre , Humanos , Cirrosis Hepática/etiología , Cirrosis Hepática Biliar/sangre , Cirrosis Hepática Biliar/complicaciones , Masculino , Persona de Mediana Edad , Prurito/inducido químicamente
8.
Liver Int ; 39(8): 1418-1427, 2019 08.
Artículo en Inglés | MEDLINE | ID: mdl-30912219

RESUMEN

BACKGROUND & AIMS: The use of complementary and alternative medicine (CAM) in patients with chronic hepatitis B (CHB) can interact with antiviral treatment or influence health-seeking behaviour. We aimed to study the use of individual CAM modalities in CHB and explore determinants of use, particularly migration-related, socio-economic and clinical factors. METHODS: A total of 436 CHB outpatients who attended the Toronto Centre for Liver Disease in 2015-2016 were included in this cross-sectional study. Using the comprehensive I-CAM questionnaire and health records, data were collected on socio-demographic and clinical variables and on usage of 16 CAM modalities in the last year. RESULTS: Sixty percent of patients were male, 74% were Asian and 46% were using antiviral treatment. Three-hundred and nine (71%) patients used CAM. Vitamin/mineral preparations (45% of patients) were most commonly used. Overall CAM use and the specific use of potentially injurious CAM, such as green tea extract (9.2%) and St. John's wort (0.2%), were not associated with liver disease severity. Female sex, family history of CHB, lower serum HBV DNA, and higher socio-economic status were independently associated with bio-holistic CAM use, the clinically most-relevant CAM group (P < 0.05); ethnicity, antiviral therapy use and liver disease severity were not. CONCLUSIONS: CAM use among CHB patients was extensive, especially use of vitamin and mineral preparations, but without direct influence on liver disease severity. Bio-holistic CAM use appeared to be associated with socio-economic status rather than with ethnicity or liver disease severity. Despite the rare use of hepatotoxins, physicians should actively inquire about it.


Asunto(s)
Terapias Complementarias/estadística & datos numéricos , Hepatitis B Crónica/terapia , Adulto , Anciano , Terapias Complementarias/psicología , Estudios Transversales , Femenino , Humanos , Masculino , Persona de Mediana Edad , Factores Sociológicos
9.
Ann Hepatol ; 18(1): 165-171, 2019.
Artículo en Inglés | MEDLINE | ID: mdl-31113586

RESUMEN

INTRODUCTION AND AIM: The prevalence and incidence of chronic liver disease is increasing resulting, in substantial direct and indirect medical costs. Overuse of investigations, treatments and procedures contribute to rising health care costs and can expose patients to unnecessary harm and delay in receiving care. The Choosing Wisely Canada (CWC) campaign has encouraged professional societies to develop statements that are directly actionable by their members in an effort to promote higher-value health care that will lead to downstream effect on how other practitioners make decisions. MATERIAL AND METHODS: The Canadian Association for the Study of the Liver (CASL) established its Choosing Wisely top five list of recommendations using the framework put forward by CWC. CASL convened a task force that developed a list of draft recommendations and shared this with CASL membership electronically with eventual ranking of the top five recommendations by consensus at Canadian Digestives Disease Week (CDDW) 2017. Following revisions, the CASL Executive Committee endorsed the final list, which was disseminated online by CWC (July 2017). RESULTS: The top five recommendations physicians and patients should question include: 1) Don't order serum ammonia to diagnose or manage hepatic encephalopathy (HE). 2) Don't routinely transfuse fresh frozen plasma, vitamin K, or platelets to reverse abnormal tests of coagulation in patients with cirrhosis prior to abdominal paracentesis, endoscopic variceal band ligation, or any other minor invasive procedures. 3) Don't order HFE genotyping based on serum ferritin values alone to diagnose hereditary hemochromatosis. 4) Don't perform computed tomography (CT) or magnetic resonance imaging (MRI) routinely to monitor benign focal liver lesions. 5) Don't repeat hepatitis C viral load testing in an individual who has established chronic infection, outside of anti-viral treatment. CONCLUSION: The Choosing Wisely recommendations will foster patient-physician discussions, reduce unnecessary treatment and testing, avert adverse effects from testing and treatment along with reducing medical expenditure in hepatology.


Asunto(s)
Consenso , Toma de Decisiones , Gastroenterología/economía , Costos de la Atención en Salud , Recursos en Salud/economía , Hepatopatías/terapia , Sociedades Médicas/normas , Canadá , Enfermedad Crónica , Humanos , Hepatopatías/economía
11.
J Hepatol ; 2017 Aug 24.
Artículo en Inglés | MEDLINE | ID: mdl-28844936

RESUMEN

BACKGROUND & AIMS: Current guidelines recommend biannual surveillance for hepatocellular carcinoma (HCC) in all patients with cirrhosis, regardless of etiology. However, HCC incidence is not well established for many causes of cirrhosis. We aimed to assess the disease-specific incidence of HCC in a large cohort of patients with cirrhosis and to develop a scoring system to predict HCC risk. METHODS: A derivation cohort of patients with cirrhosis diagnosed by biopsy or non-invasive measures was identified through retrospective chart review. The disease-specific incidence of HCC was calculated according to etiology of cirrhosis. Factors associated with HCC were identified through multivariable Cox regression and used to develop a scoring system to predict HCC risk. The scoring system was evaluated in an external cohort for validation. RESULTS: Of 2,079 patients with cirrhosis and ≥6months follow-up, 226 (10.8%) developed HCC. The 10-year cumulative incidence of HCC varied by etiologic category from 22% in patients with viral hepatitis, to 16% in those with steatohepatitis and 5% in those with autoimmune liver disease (p<0.001). By multivariable Cox regression, age, sex, etiology and platelets were associated with HCC. Points were assigned in proportion to each hazard ratio to create the Toronto HCC Risk Index (THRI). The 10-year cumulative HCC incidence was 3%, 10% and 32% in the low-risk (<120points), medium-risk (120-240) and high-risk (>240) groups respectively, values that remained consistent after internal validation. External validation was performed on a cohort of patients with primary biliary cirrhosis, hepatitis B viral and hepatitis C viral cirrhosis (n=1,144), with similar predictive ability (Harrell's c statistic 0.77) in the validation and derivation cohorts. CONCLUSION: HCC incidence varies markedly by etiology of cirrhosis. The THRI, using readily available clinical and laboratory parameters, has good predictive ability for HCC in patients with cirrhosis, and has been validated in an external cohort. This risk score may help to guide recommendations regarding HCC surveillance among patients with cirrhosis. LAY SUMMARY: HCC incidence varies markedly depending on the underlying cause of cirrhosis. Herein, using readily available clinical and laboratory parameters we describe a risk score, THRI, which has a good predictive ability for HCC in patients with cirrhosis, and has been validated in an external cohort. This risk score may help to guide recommendations regarding HCC surveillance among patients with cirrhosis.

12.
Am J Gastroenterol ; 112(8): 1298-1308, 2017 Aug.
Artículo en Inglés | MEDLINE | ID: mdl-28291241

RESUMEN

OBJECTIVES: Mixed cryoglobulinemia is strongly associated with hepatitis C virus (HCV) infection and ranges from being asymptomatic to causing life-threatening vasculitis. In those with symptoms, treatment with pegylated interferon (pegIFN) and ribavirin (RBV) reduces mortality. However, few data are available on the safety and efficacy of antiviral therapy with direct acting antivirals (DAAs) in the treatment of HCV-related cryoglobulinemia. METHODS: Patients treated for HCV-related cryoglobulinemia with DAA±pegIFN were retrospectively evaluated at a tertiary care center. Primary outcomes were virological, immunological, and clinical response. Complete (normalization), partial (>50% reduction), or non-response (<50% reduction) were used to describe change in cryocrit or vasculitic manifestations at week 12 post treatment. Side effects, hospitalizations, and decompensating events were recorded. RESULTS: Eighteen symptomatic and 65 asymptomatic patients were reviewed (61% male, median age 58 years) including 10 with severe/life-threatening vasculitis. Sixty-six (79.5%) patients received pegIFN-free therapy. Sustained virological response (SVR) was attained in 16 (88.9%) symptomatic and 59 (90.8%) asymptomatic patients. Cryoglobulins disappeared in 5 (29.4%) symptomatic and 27 (52.9%) asymptomatic patients. Of symptomatic patients with SVR, clinical response was complete in 7 (38.8%) and partial response in 4 (22.2%). Of the 5 viral relapsers, 1 had a complete response during therapy with no symptomatic recurrence, while the other patients had no clinical response. Among 7 with severe vasculitis, 6 achieved SVR but only 1 had a complete clinical response, with 3 showing a partial response and 2 showing no improvement. All four with life-threatening vasculitis required plasmapheresis and three received rituximab. All achieved SVR leading to partial clinical response in two, but no response in two. Skin manifestations (39% reduction) were most likely to completely resolve with lower responses seen in renal (11.2% reduction) and neurological symptoms (11.1%). Eighty-two (98.8%) patients completed therapy, with 19 (22.8%) reporting adverse events. Hospitalization for decompensation or worsening vasculitis occurred in five (6.0%) and four (22.2) patients respectively. CONCLUSIONS: DAAs resulted in high rates of SVR in patients with cryoglobulinemia. Safety and tolerability were excellent; however, most patients did not have a complete clinical or immunological response, suggesting a delay to clinical response particularly in those with severe/life-threatening vasculitis. Further follow-up will be required to determine if clinical improvement continues after viral clearance.


Asunto(s)
Antivirales/uso terapéutico , Crioglobulinemia/tratamiento farmacológico , Interferón-alfa/uso terapéutico , Polietilenglicoles/uso terapéutico , Ribavirina/uso terapéutico , Antivirales/efectos adversos , Crioglobulinemia/complicaciones , Femenino , Hepatitis C Crónica/complicaciones , Hepatitis C Crónica/tratamiento farmacológico , Humanos , Interferón-alfa/efectos adversos , Cirrosis Hepática/complicaciones , Masculino , Persona de Mediana Edad , Polietilenglicoles/efectos adversos , Proteínas Recombinantes/efectos adversos , Proteínas Recombinantes/uso terapéutico , Recurrencia , Estudios Retrospectivos , Ribavirina/efectos adversos , Resultado del Tratamiento
13.
Ann Hepatol ; 16(5): 765-771, 2017.
Artículo en Inglés | MEDLINE | ID: mdl-28809734

RESUMEN

INTRODUCTION: Radiofrequency ablation (RFA) is a recommended curative intent treatment option for patients with early stage hepatocellular carcinoma (HCC). We investigated if wait times for RFA were associated with residual tumor, tumor recurrence, need for liver transplantation, or death. MATERIAL AND METHODS: We conducted a retrospective study of patients diagnosed with HCC between January 2010 and December 2013 presenting to University Health Network (UHN) in Toronto, Canada. All patients receiving curative intent RFA for HCC were included. Multivariable Cox regression was used to determine if wait times were associated with clinical outcomes. RESULTS: 219 patients were included in the study. 72.6% were male and the median age was 62.7 years (IQR 55.6-71). Median tumor size at diagnosis was 21.5 mm (IQR 17-26); median MELD was 8.7 (IQR 7.2-11.4) and 57.1% were Barcelona stage 0. The cause of liver disease was viral hepatitis in 73.5% (Hepatitis B and C). The median time from HCC diagnosis to RFA treatment was 96 days (IQR 75-139). In multivariate analysis, wait time was not associated with requiring liver transplant or tumor recurrence, however, each incremental 30-day wait time was associated with an increased risk of residual tumor (HR = 1.09; 95% CI 1.01-1.19; p = 0.033) as well as death (HR = 1.23; 95% CI 1.11-1.36; p ≤ 0.001). CONCLUSION: Incremental 30-day wait times are associated with a 9% increased risk of residual tumor and a 23% increased risk of death. We have identified system gaps where quality improvement measures can be implemented to reduce wait times and allocate resources for future RFA treatment, which may improve both quality and efficiency of HCC care.


Asunto(s)
Carcinoma Hepatocelular/cirugía , Ablación por Catéter/mortalidad , Neoplasias Hepáticas/cirugía , Tiempo de Tratamiento , Listas de Espera/mortalidad , Anciano , Carcinoma Hepatocelular/mortalidad , Carcinoma Hepatocelular/patología , Ablación por Catéter/efectos adversos , Distribución de Chi-Cuadrado , Femenino , Humanos , Estimación de Kaplan-Meier , Neoplasias Hepáticas/mortalidad , Neoplasias Hepáticas/patología , Masculino , Persona de Mediana Edad , Análisis Multivariante , Estadificación de Neoplasias , Ontario , Modelos de Riesgos Proporcionales , Mejoramiento de la Calidad , Indicadores de Calidad de la Atención de Salud , Estudios Retrospectivos , Factores de Riesgo , Factores de Tiempo
14.
Gut ; 65(8): 1347-58, 2016 08.
Artículo en Inglés | MEDLINE | ID: mdl-25934760

RESUMEN

BACKGROUND: Patients with chronic hepatitis B (CHB) infection are at an increased risk of developing hepatocellular carcinoma (HCC). Risk scores have been developed in Asian populations to predict HCC risk over time. AIM: To assess the performance of HCC risk prediction models in a heterogeneous population of patients with CHB. METHODS: Scores were calculated at baseline using CU-HCC, REACH-B, NGM1-HCC, NGM2-HCC and GAG-HCC models and the incidence of HCC was determined. The predictive ability of each score was evaluated using the area under the receiver operating characteristic curve (AUROC), Cox regression and plots of observed versus predicted HCC. The predictive value of the scores was compared between Asian and non-Asian patients and between cirrhotic versus non-cirrhotic with and without treatment. RESULTS: Of 2105 patients, 70 developed HCC. Increasing risk score was associated with HCC in all models. The CU-HCC model had the highest AUROC in Asian (0.85) and non-Asian (0.91) patients. Patients identified as low risk by any model had a very low incidence of HCC (0-0.15 per year), with the highest proportion of patients identified as low risk using CU-HCC (67%) or GAG-HCC (78%). The risk of HCC was similar to predicted for low-risk and medium-risk patients but was lower than predicted for high-risk patients. Treated patients had a lower than predicted risk of HCC, particularly in non-cirrhotic high-risk patients with longer follow-up. CONCLUSIONS: Although all models predicted the risk of HCC, models that incorporated parameters of liver function or cirrhosis (CU-HCC/GAG-HCC) were most accurate. Low-risk patients likely require reduced HCC surveillance.


Asunto(s)
Carcinoma Hepatocelular , Hepatitis B Crónica , Cirrosis Hepática , Pruebas de Función Hepática , Neoplasias Hepáticas , Medición de Riesgo/métodos , Adulto , Anciano , Canadá/epidemiología , Carcinoma Hepatocelular/diagnóstico , Carcinoma Hepatocelular/epidemiología , Carcinoma Hepatocelular/patología , Femenino , Hepatitis B Crónica/diagnóstico , Hepatitis B Crónica/epidemiología , Humanos , Incidencia , Cirrosis Hepática/diagnóstico , Cirrosis Hepática/epidemiología , Pruebas de Función Hepática/métodos , Pruebas de Función Hepática/estadística & datos numéricos , Neoplasias Hepáticas/diagnóstico , Neoplasias Hepáticas/epidemiología , Neoplasias Hepáticas/patología , Masculino , Persona de Mediana Edad , Valor Predictivo de las Pruebas , Pronóstico , Curva ROC , Proyectos de Investigación , Factores de Riesgo
15.
World J Surg ; 39(1): 41-6, 2015 Jan.
Artículo en Inglés | MEDLINE | ID: mdl-24806625

RESUMEN

BACKGROUND: The burden of cleft lip and palate (CLP) in the developing world is being tackled by local hospitals and international surgical missions. However, the unmet surgical burden of these conditions is not known, because there are few population-based studies. We conducted this study to find the incidence and prevalence of cleft lip (CL), cleft palate (CP), and CLP and also estimate the unmet burden of these conditions. METHODS: Four blocks comprising of half a million people in the Patan district of Gujarat were chosen as the study areas. This study was conducted over a period of 3 months in 2009. Patients with CL, CP, and CLP were identified by community health workers using snowball sampling method. Data collected included demographics, type of cleft, operated or not, and place of operation. Disability adjusted life years (DALY) was calculated to measure the unmet burden of this disease. RESULTS: The most common among the three conditions was CL (69.4 %). Overall, cleft abnormalities were more common in males (61 %). The overall incidence and prevalence of cleft deformity was 0.73 per 1,000 live births and 0.1 per 1,000 people respectively. The unmet burden of surgical disease of these four blocks was 230 to 494 DALYs. CONCLUSIONS: The incidence of CL with or without palate was found to be 0.7 per 1,000 live births. The large number of unoperated cases (backlog) of cleft deformities suggests a big burden of unmet need in rural India.


Asunto(s)
Labio Leporino/epidemiología , Fisura del Paladar/epidemiología , Niño , Labio Leporino/cirugía , Fisura del Paladar/cirugía , Costo de Enfermedad , Estudios Transversales , Evaluación de la Discapacidad , Femenino , Humanos , Incidencia , India/epidemiología , Masculino , Evaluación de Necesidades , Prevalencia , Procedimientos de Cirugía Plástica/estadística & datos numéricos , Proyectos de Investigación , Salud Rural/estadística & datos numéricos
16.
J Hepatol ; 59(2): 327-35, 2013 Aug.
Artículo en Inglés | MEDLINE | ID: mdl-23608623

RESUMEN

BACKGROUND & AIMS: Gastro-oesophageal varices (GOV) can occur in early stage primary biliary cirrhosis (PBC), making it difficult to identify the appropriate time to begin screening with oesophageo-gastro-duodenoscopy (OGD). Our aim was to develop and validate a clinical tool to predict the probability of finding GOV in PBC patients. METHODS: A cross-sectional retrospective study analysing clinical data of 330 PBC patients who underwent an OGD at the Freeman Hospital, Newcastle was used to create a predictive tool, the Newcastle Varices in PBC (NVP) Score, that was externally validated in PBC patients from Cambridge (UK) and Toronto (Canada). RESULTS: 48% of the Newcastle, 31% of the Cambridge, and 22% of the Toronto cohorts of PBC patients had GOV. Twenty-five percent (95% CI 18-32%) of the Newcastle cohort had GOV diagnosed at an index variceal bleed. Of the others, 37% (95% CI 28-46%) bled after a median of 1.5 years (IQR 3.75). Transplant-free survival was significantly better in those without GOV than in those with GOV (p<0.001), but similar in patients with GOV that bled and those that did not (p=0.1). The NVP score (%Probability)=1/[1+exp^-(9.186+0.001*alkaline phosphatase in IU-0.178*albumin in g/L-0.015*platelet × 10(9)) was validated in 2 external cohorts and was highly discriminant (AUROC 0.86). Cost consequences analyses revealed the NVP score to be as accurate as, but more economical than using either OGD directly or other risk scores for screening PBC patients. CONCLUSIONS: The NVP score is an inexpensive, non-invasive, externally validated tool that accurately predicts GOV in PBC.


Asunto(s)
Várices Esofágicas y Gástricas/etiología , Cirrosis Hepática Biliar/complicaciones , Anciano , Fosfatasa Alcalina/sangre , Estudios de Cohortes , Estudios Transversales , Endoscopía Gastrointestinal , Várices Esofágicas y Gástricas/sangre , Várices Esofágicas y Gástricas/diagnóstico , Femenino , Humanos , Cirrosis Hepática Biliar/sangre , Masculino , Persona de Mediana Edad , Ontario , Recuento de Plaquetas , Valor Predictivo de las Pruebas , Estudios Retrospectivos , Factores de Riesgo , Albúmina Sérica/metabolismo , Reino Unido
17.
Clin Gastroenterol Hepatol ; 11(8): 922-33, 2013 Aug.
Artículo en Inglés | MEDLINE | ID: mdl-23639601

RESUMEN

BACKGROUND & AIMS: Education of individuals who are at risk for, or have been diagnosed with, chronic hepatitis B virus (HBV) or hepatitis C virus (HCV) infections can improve their participation in disease management. We performed a systematic review to evaluate the effects of educational interventions for patients with HBV or HCV infections. METHODS: We searched multiple databases for peer-reviewed studies of individuals with HBV or HCV infection, or those at risk for infection. Our final analysis included 14 studies that evaluated any educational intervention and reported the effectiveness or patient outcomes relevant to the intervention (7 patients with HCV infection, 4 patients with HBV infection, and 3 patients with either). Data extracted from studies included details on educational interventions, patient populations, comparison groups, and outcome measures. The quality of each study was appraised. RESULTS: Types of educational interventions assessed ranged from information websites and nurse-led sessions to community-wide and institutional programs. The educational interventions showed significant (P < .05) improvements to patients' knowledge about their disease, behaviors (including testing and uptake of vaccination), willingness to commence and adhere to treatment, and other outcomes such as self-efficacy and vitality or energy scores. These significant benefits were shown in 5 of 7 studies of HBV infection and 8 of 10 studies of HCV infection. On a 20-point quality scale, study scores ranged from 6 to 19. CONCLUSIONS: Simple educational interventions for patients with HBV or HCV infection significantly increase patients' knowledge about their disease. More complex, multimodal educational interventions seem to cause behavioral changes that increase rates of testing, vaccination (for HBV), and treatment.


Asunto(s)
Educación en Salud/métodos , Conocimientos, Actitudes y Práctica en Salud , Hepatitis B/prevención & control , Hepatitis B/terapia , Hepatitis C/prevención & control , Hepatitis C/terapia , Terapia Conductista/métodos , Humanos
19.
Cureus ; 15(9): e44507, 2023 Sep.
Artículo en Inglés | MEDLINE | ID: mdl-37790011

RESUMEN

The term "encephalocele" refers to the herniation of brain tissue caused by a cranial bone defect. It could be congenital, traumatic, neoplastic, or arise spontaneously. The possibility of traumatic fronto-ethmoidal encephalocele should be considered in patients who have experienced trauma. We report a case of a 16-year-old male with a recent history of a bike accident presented with sudden unilateral rhinorrhea. Non-contrast computed tomography (NCCT) brain was done, which showed findings of left fronto-ethmoidal encephalocele. The patient was managed with single-staged surgery without any complications.

20.
Drug Alcohol Rev ; 2023 Jul 13.
Artículo en Inglés | MEDLINE | ID: mdl-37439376

RESUMEN

INTRODUCTION: The on-going substance use crisis has led to unprecedented rates of hepatitis C virus (HCV) in Canada, with increasing positivity among women who use drugs (WWUD). Despite efforts to reduce barriers to HCV testing and treatment, follow-up remains a major issue. METHODS: In this quality improvement project (QIP), we partnered with a short-stay trauma-informed residential drug treatment facility specifically for WWUD, to provide an engaging peer-led HCV education session, followed by low-barrier nurse and peer-led testing and treatment. We sought to evaluate these interventions, as well as determine what factors could improve engagement after women leave. RESULTS: The session was attended by 217 participants, 130 completed the survey and 153 opted into testing. Survey results indicated that participants were highly motivated to access general care as well as HCV testing and treatment. The most frequently reported barriers to testing and treatment were a previous negative test and being asymptomatic, respectively. Follow-up facilitators included a non-judgmental provider (88%), monetary incentives (67%), follow-up phone calls (77%), e-mails (66%) and text messages (58%). Of those who were RNA positive, 5 of 13 initiated treatment on-site. By using the results of the QIP in real-time, 6 of 13 were started after leaving the centre (one pending and one lost to follow-up). DISCUSSION AND CONCLUSIONS: The implementation of co-localised peer-led testing and treatment for HCV, along with persistent follow-up efforts, led to increases in linkage to care and treatment. Co-localisation of testing and care with substance-use services, especially if residential, is a viable, low-barrier strategy for increasing linkage to care among WWUD.

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