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1.
J Hosp Infect ; 2024 Mar 16.
Artículo en Inglés | MEDLINE | ID: mdl-38492646

RESUMEN

Hand hygiene is a standard public health practice for limiting the spread of infectious diseases, yet they are still not routine global health behaviours. This review aimed to examine the effectiveness of various hand hygiene interventions conducted across the League of Arab States, identify gaps in the existing literature, and propose areas for future research and intervention development. A scoping review was conducted across 16 databases for relevant publications published up to and including October 2023. Forty studies met the inclusion criteria; of these, 34 were hospital-based and six community-based. Of the reviewed studies, 24 provided adequate details that would enable replication of their intervention. Eighteen of the studies used some variation of the World Health Organization's Five Moments for intervention content or assessment. More than half (N = 25) reported healthcare worker or student hand hygiene behaviours as an outcome and 15 studies also included some form of patient-centred outcomes. Six studies specified the use of theory or framework for their evaluation design or intervention content, and four studies mentioned use of local government guidelines or recommendations. Future research should focus on bridging the literature gaps by emphasizing community-based studies and integrating cultural nuances into intervention designs. Additionally, applying theoretical frameworks to hand hygiene studies could enhance understanding and effectiveness, ensuring sustainable improvements in hygiene practices across diverse settings in the League of Arab States.

2.
Int J Stroke ; 17(2): 163-171, 2022 Feb.
Artículo en Inglés | MEDLINE | ID: mdl-33538655

RESUMEN

BACKGROUND: Inflammation driven by pro-inflammatory cytokines is a new therapeutic target in coronary disease. Few data exist on the association of key upstream cytokines and post-stroke recurrence. In a prospective cohort study, we investigated the association between pivotal cytokines, high-sensitivity C-reactive protein (hsCRP) and one-year outcomes. METHODS: BIO-STROKETIA is a multi-center prospective cohort study of non-severe ischemic stroke (modified Rankin score ≤ 3) and transient ischemic attack. Controls were patients with transient symptoms attending transient ischemic attack clinics with non-ischemic final diagnosis. Exclusion criteria were severe stroke, infection, and other pro-inflammatory disease; hsCRP and cytokines (interleukin (IL) 6, IL-1ß, IL-8, IL-10, IL-12, interferon-γ (IFN-γ), tumor-necrosis factor-α (TNF-α)) were measured. The primary outcome was one-year recurrent stroke/coronary events (fatal and non-fatal). RESULTS: In this study, 680 patients (439 stroke, 241 transient ischemic attack) and 68 controls were included. IL-6, IL-1ß, IL-8, IFN-γ, TNF-α, and hsCRP were higher in stroke/transient ischemic attack cases (p ≤ 0.01 for all). On multivariable Cox regression, IL-6, IL-8, and hsCRP independently predicted one-year recurrent vascular events (adjusted hazard ratios (aHR) per-quartile increase IL-6 1.31, confidence interval (CI) 1.02-1.68, p = 0.03; IL-8 1.47, CI 1.15-1.89, p = 0.002; hsCRP 1.28, CI 1.01-1.62, p = 0.04). IL-6 (aHR 1.98, CI 1.26-3.14, p = 0.003) and hsCRP (aHR 1.81, CI 1.20-2.74, p = 0.005) independently predicted one-year fatality. IL-6 and hsCRP (adjusted odds ratio per-unit increase 1.02, CI 1.01-1.04) predicted poor functional outcome, with a trend for IL-1ß (p = 0.054). CONCLUSION: Baseline inflammatory cytokines independently predicted late recurrence, supporting a rationale for randomized trials of anti-inflammatory agents for prevention after stroke and suggesting that targeted therapy to high-risk patients with high baseline inflammation may be beneficial.


Asunto(s)
Proteína C-Reactiva , Citocinas , Ataque Isquémico Transitorio , Accidente Cerebrovascular , Proteína C-Reactiva/metabolismo , Humanos , Ataque Isquémico Transitorio/complicaciones , Estudios Prospectivos , Factores de Riesgo , Accidente Cerebrovascular/complicaciones
3.
Eur Stroke J ; 6(1): 62-71, 2021 Mar.
Artículo en Inglés | MEDLINE | ID: mdl-33817336

RESUMEN

BACKGROUND: Recent randomised trials showed benefit for anti-inflammatory therapies in coronary disease but excluded stroke. The prognostic value of blood inflammatory markers after stroke is uncertain and guidelines do not recommend their routine measurement for risk stratification. METHODS: We performed a systematic review and meta-analysis of studies investigating the association of C-reactive protein (CRP), interleukin-6 (IL-6) and fibrinogen and risk of recurrent stroke or major vascular events (MVEs). We searched EMBASE and Ovid Medline until 10/1/19. Random-effects meta-analysis was performed for studies reporting comparable effect measures. RESULTS: Of 2,515 reports identified, 39 met eligibility criteria (IL-6, n = 10; CRP, n = 33; fibrinogen, n = 16). An association with recurrent stroke was reported in 12/26 studies (CRP), 2/11 (fibrinogen) and 3/6 (IL-6). On random-effects meta-analysis of comparable studies, CRP was associated with an increased risk of recurrent stroke [pooled hazard ratio (HR) per 1 standard-deviation (SD) increase in loge-CRP (1.14, 95% CI 1.06-1.22, p < 0.01)] and MVEs (pooled HR 1.21, CI 1.10-1.34, p < 0.01). Fibrinogen was also associated with recurrent stroke (HR 1.26, CI 1.07-1.47, p < 0.01) and MVEs (HR 1.31, 95% CI 1.15-1.49, p < 0.01). Trends were identified for IL-6 for recurrent stroke (HR per 1-SD increase 1.17, CI 0.97-1.41, p = 0.10) and MVEs (HR 1.22, CI 0.96-1.55, p = 0.10). CONCLUSION: Despite evidence suggesting an association between inflammatory markers and post-stroke vascular recurrence, substantial methodological heterogeneity was apparent between studies. Individual-patient pooled analysis and standardisation of methods are needed to determine the prognostic role of blood inflammatory markers and to improve patient selection for randomised trials of inflammatory therapies.

4.
Eur J Neurol ; 27(6): 1035-1038, 2020 06.
Artículo en Inglés | MEDLINE | ID: mdl-32134555

RESUMEN

BACKGROUND AND PURPOSE: Although clinical trials suggest that colchicine may reduce the risk of vascular events in patients with a history of coronary artery disease, its effect on the prevention of cerebrovascular events still remains unclear. METHODS: A systematic review and meta-analysis was performed of all available randomized controlled trials (RCTs) reporting on incident strokes during the follow-up of patients with a history of cardiovascular disease randomized to colchicine treatment or control (placebo or usual care). RESULTS: Four RCTs were identified, including a total of 5553 patients (mean age 61 years, 81% males), with a follow-up ranging from 1 to 36 months. Colchicine treatment was associated with a significantly lower risk of incident stroke during follow-up compared to control (risk ratio 0.31, 95% confidence interval 0.13-0.71), without heterogeneity across included studies (I2  = 0%). Based on the pooled incident stroke rate of control groups (0.9%) in the included RCTs, it was estimated that administration of low-dose colchicine to 161 patients with coronary artery disease would prevent one stroke during a follow-up of 23 months. CONCLUSION: Colchicine treatment decreases stroke risk in patients with a history of coronary artery disease. The effect of colchicine in secondary stroke prevention is currently being evaluated in an ongoing RCT.


Asunto(s)
Enfermedad de la Arteria Coronaria , Colchicina/uso terapéutico , Enfermedad de la Arteria Coronaria/complicaciones , Enfermedad de la Arteria Coronaria/tratamiento farmacológico , Enfermedad de la Arteria Coronaria/prevención & control , Femenino , Humanos , Masculino , Persona de Mediana Edad , Prevención Secundaria , Accidente Cerebrovascular/epidemiología , Accidente Cerebrovascular/prevención & control
5.
BJS Open ; 3(4): 521-531, 2019 08.
Artículo en Inglés | MEDLINE | ID: mdl-31388645

RESUMEN

Background: There are concerns that non-anatomical resection (NAR) worsens perioperative and oncological outcomes compared with those following anatomical resection (AR) for colorectal liver metastases (CRLM). Most previous studies have been biased by the effect of tumour size. The aim of this study was to compare oncological outcomes after NAR versus AR. Methods: This was a retrospective study of consecutive patients who underwent CRLM resection with curative intent from 1999 to 2016. Data were retrieved from a prospectively developed database. Survival and perioperative outcomes for NAR and AR were compared using propensity score analyses. Results: Some 358 patients were included in the study. Median follow-up was 34 (i.q.r. 16-68) months. NAR was associated with significantly less morbidity compared with AR (31·1 versus 44·4 per cent respectively; P = 0·037). Larger (hazard ratio (HR) for lesions 5 cm or greater 1·81, 95 per cent c.i. 1·13 to 2·90; P = 0·035) or multiple (HR 1·48, 1·03 to 2·12; P = 0·035) metastases were associated with poor overall survival (OS). Synchronous (HR 1·33, 1·01 to 1·77; P = 0·045) and multiple (HR 1·51, 1·14 to 2·00; P = 0·004) liver metastases, major complications after liver resection (HR 1·49, 1·05 to 2·11; P = 0·026) or complications after resection of the primary colorectal tumour (HR 1·51, 1·01 to 2·26; P = 0·045) were associated with poor disease-free survival (DFS). AR was prognostic for poor OS only in tumours smaller than 30 mm, and R1 margin status was not prognostic for either OS or DFS. NAR was associated with a higher rate of salvage resection than AR following intrahepatic recurrence. Conclusions: NAR has at least equivalent oncological outcomes to AR while proving to be safer. NAR should therefore be the primary surgical approach to CRLM, especially for lesions smaller than 30 mm.


Asunto(s)
Neoplasias Colorrectales/patología , Neoplasias Hepáticas , Anciano , Supervivencia sin Enfermedad , Femenino , Hepatectomía/efectos adversos , Hepatectomía/métodos , Hepatectomía/mortalidad , Humanos , Neoplasias Hepáticas/mortalidad , Neoplasias Hepáticas/secundario , Neoplasias Hepáticas/cirugía , Masculino , Persona de Mediana Edad , Complicaciones Posoperatorias , Pronóstico , Puntaje de Propensión , Estudios Retrospectivos
6.
Sci Rep ; 9(1): 8848, 2019 06 20.
Artículo en Inglés | MEDLINE | ID: mdl-31222116

RESUMEN

After 53 years of quiescence, Mount Agung awoke in August 2017, with intense seismicity, measurable ground deformation, and thermal anomalies in the summit crater. Although the seismic unrest peaked in late September and early October, the volcano did not start erupting until 21 November. The most intense explosive eruptions with accompanying rapid lava effusion occurred between 25 and 29 November. Smaller infrequent explosions and extrusions continue through the present (June 2019). The delay between intense unrest and eruption caused considerable challenges to emergency responders, local and national governmental agencies, and the population of Bali near the volcano, including over 140,000 evacuees. This paper provides an overview of the volcanic activity at Mount Agung from the viewpoint of the volcano observatory and other scientists responding to the volcanic crisis. We discuss the volcanic activity as well as key data streams used to track it. We provide evidence that magma intruded into the mid-crust in early 2017, and again in August of that year, prior to intrusion of an inferred dike between Mount Agung and Batur Caldera that initiated an earthquake swarm in late September. We summarize efforts to forecast the behavior of the volcano, to quantify exclusion zones for evacuations, and to work with emergency responders and other government agencies to make decisions during a complex and tense volcanic crisis.

7.
Acta Parasitol ; 64(4): 738-744, 2019 Dec.
Artículo en Inglés | MEDLINE | ID: mdl-31111358

RESUMEN

PURPOSE: Toxoplasma gondii is a zoonotic parasite capable of infecting a wide range of hosts. Free-range chickens are important sentinels in the epidemiology of this parasite as they feed from the ground and are likely to ingest oocysts shed in the faeces of infected cats. Atypical strains of T. gondii are known to dominate in South America where they are associated with more severe disease in humans, yet relatively little is known about the strains circulating in neighbouring Caribbean islands. METHODS: In this study, hearts and brains were collected from free-range chickens in Antigua and Barbuda (n = 45), Dominica (n = 76) and Trinidad (n = 41), and DNA was extracted for nested ITS1 PCR and PCR-RFLP. Sera were collected and screened for antibodies using the modified agglutination test (MAT). RESULTS: Antibodies to T. gondii were detected in 20.5, 38.2 and 17.1% of chickens in Antigua and Barbuda, Dominica and Trinidad, respectively. Toxoplasma gondii DNA was also detected by PCR in 24.4, 17.1 and 17.1% of chickens, respectively, giving an overall prevalence of 31.1, 42.1, and 29.3% for each of the 3 island nations. Results of PCR-RFLP revealed 2 new atypical genotypes (designated ToxoDB #281 and #282) and one Type III (ToxoDB #2) in chickens from Antigua. Partial genotyping of a further 8 isolates (7 from Antigua and one from Trinidad) revealed different allele-types at five or more markers for 7 of the isolates, suggesting atypical genotypes. CONCLUSIONS: This is the first study to report the prevalence of T. gondii in free-range chickens in Antigua and Barbuda, Dominica and Trinidad and Tobago. It is also the first to report the presence of atypical genotypes in Antigua and Barbuda and Trinidad and Tobago.


Asunto(s)
Pollos/parasitología , Variación Genética , Enfermedades de las Aves de Corral/epidemiología , Enfermedades de las Aves de Corral/parasitología , Toxoplasma/genética , Toxoplasmosis Animal/epidemiología , Animales , Anticuerpos Antiprotozoarios/sangre , Encéfalo/parasitología , ADN Protozoario/genética , Genotipo , Corazón/parasitología , Prevalencia , Indias Occidentales/epidemiología
8.
Acta Oncol ; 57(7): 965-972, 2018 Jul.
Artículo en Inglés | MEDLINE | ID: mdl-29419331

RESUMEN

BACKGROUND: The optimal primary external beam radiation therapy (EBRT) radiation schedule for malignant epidural spinal cord compression (MSCC) remains to be determined. The ICORG 05-03 trial assessed if a 10 Gy single fraction radiation schedule was not inferior to one with 20 Gray (Gy) in five daily fractions, in terms of functional motor outcome, for the treatment of MSCC in patients not proceeding with surgical decompression. This article reports on two of the secondary endpoints, Quality of life (QoL), assessed according to the European Organization for Research and Treatment of Cancer (EORTC) Quality of Life Questionnaire Core 30 (QLQ-C30) version 3.0 (EORTC Data Center, Brussels, Belgium) and pain control assessed using a visual analog scale. METHODS: A randomized, parallel group, multicenter phase III trial was conducted by Cancer Trials Ireland (formerly All-Ireland Cooperative Oncology Research Group, ICORG), across five hospital sites in Ireland and Northern Ireland. Patients were randomized to 10 Gy single fraction of EBRT or 20 Gy in five fractions in a 1:1 ratio. Patients with baseline and 5-week follow up QoL data are included in this analysis. FINDINGS: From 2006 to 2014, 112 eligible patients were enrolled for whom 57 were evaluated for this secondary analysis. After adjusting for pre-intervention scores, there was no statistically significant difference in post-treatment Summary scores (excl. FI and QL), or pain scores between the two RT schedules at 5 weeks and 3 months following EBRT. There was a statistically significant relationship between the pretreatment and post-treatment Summary scores (p = .002) but not between the pre-treatment and post-treatment pain scores. INTERPRETATION: Primary radiotherapy for the treatment of MSCC significantly improves QoL in patients not proceeding with surgical decompression. After adjusting for pre-intervention scores, there was no statistically significant difference between a 10 Gy single fraction radiation schedule and one with 20 Gy in five daily fractions on post-treatment QoL Summary scores. For most patients, an effective treatment with low burden would be desirable. A single fraction schedule should be considered for this group of patients.


Asunto(s)
Fraccionamiento de la Dosis de Radiación , Neoplasias/radioterapia , Calidad de Vida , Compresión de la Médula Espinal/radioterapia , Anciano , Anciano de 80 o más Años , Estudios de Equivalencia como Asunto , Femenino , Humanos , Masculino , Persona de Mediana Edad , Neoplasias/complicaciones , Neoplasias/patología , Compresión de la Médula Espinal/etiología , Resultado del Tratamiento
9.
Ir Med J ; 109(4): 397, 2016 Apr 11.
Artículo en Inglés | MEDLINE | ID: mdl-27685491

RESUMEN

Ischaemic stroke clinical outcomes are improved by earlier treatment with intravenous thrombolysis. An existing pathway at the Mater University Hospital for assessment of suspected acute stroke in the Emergency Department was updated, aiming to shorten door-to-needle time. This study examines the final clinical diagnosis of Dublin Fire Brigade Ambulance Paramedic identified Face-Arm-Speech-Test (FAST) positive patients presenting to the Emergency Department over a 7 month period. A retrospective analysis was carried out of 177 consecutive FAST positive patients presenting between March and November 2014. The final clinical diagnosis was acute stroke in 57.1% (n=101) of patients. Of these, 76 were ischaemic strokes of whom 56.5% (n=43) were thrombolysed. In the pre-hospital setting Ambulance Paramedics can identify, with reasonable accuracy, acute stroke using the FAST test. Over half of the ischaemic stroke patients presenting via this pathway can be treated with intravenous thrombolysis.

10.
QJM ; 109(8): 539-543, 2016 Aug.
Artículo en Inglés | MEDLINE | ID: mdl-26819299

RESUMEN

INTRODUCTION: Opportunistic screening is an effective means of identifying subjects with Atrial Fibrillation (AF). Previous studies of opportunistic screening have been performed areas with high population density and before the development of novel oral anticoagulant drugs. We performed a study to determine feasibility of AF screening in a predominantly rural, low population density area. METHODS: Over 6 months, subjects 65 years and older were screened by local General Practitioners using radial pulse palpation confirmed by 12 lead Electrocardiogram. Data were recorded electronically and those with newly identified AF were followed up to examine management post diagnosis. RESULTS: In total, 7262 subjects were screened and an irregular pulse was found in 916 (12.6%) of whom 735 (10.1%) had known AF and 55 (0.76%) had newly detected AF. Of these 55 patients with newly documented AF, 28 (50.9%) were women, 38 (69.1%) had hypertension and eight (14.5%) had a smoking history. Mean body mass index in subjects with newly documented AF was 28.9 kg/m(2)(SD 5.6) There was no significant difference in gender mix (P = 0.4), smoking history (P = 0.8) or alcohol history (P = 0.8) with the overall population. Fifty-one (92.7%) subjects had a CHA2DS2VaSC score ≥ 2 of whom 33 (64.7%) were eventually anticoagulated and nine (17.6%) commenced on Aspirin. The rate of newly identified patients in AF was lower than in previous reported key studies because of a higher rate of subjects with known AF. CONCLUSION: Opportunistic AF screening in a rural environment identified a substantial number of new cases, although less than in previous screening studies.


Asunto(s)
Fibrilación Atrial/diagnóstico , Fibrilación Atrial/epidemiología , Tamizaje Masivo/métodos , Anciano , Anciano de 80 o más Años , Anticoagulantes/uso terapéutico , Fibrilación Atrial/tratamiento farmacológico , Electrocardiografía Ambulatoria , Femenino , Humanos , Irlanda/epidemiología , Masculino , Población Rural , Warfarina/uso terapéutico
11.
Transplant Proc ; 47(6): 1901-4, 2015.
Artículo en Inglés | MEDLINE | ID: mdl-26293070

RESUMEN

INTRODUCTION: We have aggressively used continuous veno-venous hemofiltration (CVVH) on high model for end-stage liver disease (MELD) score liver transplant patients with acute kidney injury and hypothesized that the addition of intraoperative CVVH therapy would improve overall outcomes. METHODS: We performed a retrospective review of all adult, single organ, liver transplant recipients requiring preoperative renal replacement therapy between January 1, 2011 and June 1, 2013. Intraoperative and perioperative records and laboratory values were collected and used to create a database of these patients. Patients were grouped according to whether or not they underwent CVVH at the time of liver transplantation. RESULTS: Twenty-one patients with new-onset renal failure requiring preoperative renal replacement therapy received a liver transplant alone. Fourteen received intraoperative CVVH and 7 patients did not. The average MELD score was similar between groups (34 for intraoperative CVVH vs 35; P = .8). Preoperative sodium and potassium were higher for the group receiving intraoperative CVVH, but still fell within normal ranges. Preoperative lactate levels were higher in the group that received intraoperative CVVH (4.7 vs 2.0 mmol/L; P = .01). Intraoperative CVVH did not decrease intraoperative transfusion requirements or intensive care unit (ICU) and hospital lengths of stay. Differences in reoperative rates did not reach statistical significance. All patients were weaned off renal replacement therapy. One-year patient survival rate was 86% for intraoperative CVVH versus 71% without. CONCLUSION: The judicious use of intraoperative CVVH therapy may permit patients with increasing severity of illness to achieve outcomes comparable with less ill patients.


Asunto(s)
Lesión Renal Aguda/terapia , Hemofiltración/métodos , Unidades de Cuidados Intensivos , Cuidados Intraoperatorios/métodos , Trasplante de Riñón/métodos , Lesión Renal Aguda/mortalidad , Femenino , Humanos , Masculino , Maryland/epidemiología , Persona de Mediana Edad , Estudios Retrospectivos , Tasa de Supervivencia/tendencias
12.
Age Ageing ; 44(5): 882-6, 2015 Sep.
Artículo en Inglés | MEDLINE | ID: mdl-26271048

RESUMEN

BACKGROUND: Stroke patients are at increased risk of falls and fractures. The aim of this study was to determine the rate, predictors and consequences of falls within 2 years after stroke in a prospective population-based study in North Dublin, Ireland. DESIGN: Prospective population-based cohort study. SUBJECTS: 567 adults aged >18 years from the North Dublin Population Stroke Study. METHODS: Participants were enrolled from an Irish urban population of 294,592 individuals, according to recommended criteria. Patients were followed for 2 years. Outcome measures included death, modified Rankin Scale (mRS), fall and fracture rate. RESULTS: At 2 years, 23.5% (124/522) had fallen at least once since their stroke, 14.2% (74/522) had 2 or more falls and 5.4% (28/522) had a fracture. Of 332 survivors at 2 years, 107 (32.2%) had fallen, of whom 60.7% (65/107) had 2 or more falls and 23.4% (25/107) had fractured. In a multivariable model controlling for age and gender, independent risk factors for falling within the first 2 years of stroke included use of alpha-blocker medications for treatment of hypertension (P = 0.02). When mobility measured at Day 90 was included in the model, patients who were mobility impaired (mRS 2-3) were at the highest risk of falling within 2 years of stroke [odds ratio (OR) 2.30, P = 0.003] and those functionally dependent (mRS 4-5) displayed intermediate risk (OR 2.02, P = 0.03) when compared with independently mobile patients. CONCLUSION: Greater attention to falls risk, fall prevention strategies and bone health in the stroke population are required.


Asunto(s)
Accidentes por Caídas/estadística & datos numéricos , Fracturas Óseas/epidemiología , Accidente Cerebrovascular/epidemiología , Accidentes por Caídas/mortalidad , Antagonistas Adrenérgicos alfa/uso terapéutico , Anciano , Anciano de 80 o más Años , Antihipertensivos/uso terapéutico , Distribución de Chi-Cuadrado , Comorbilidad , Evaluación de la Discapacidad , Femenino , Fracturas Óseas/diagnóstico , Fracturas Óseas/mortalidad , Humanos , Hipertensión/tratamiento farmacológico , Hipertensión/epidemiología , Irlanda/epidemiología , Estimación de Kaplan-Meier , Modelos Logísticos , Masculino , Persona de Mediana Edad , Limitación de la Movilidad , Análisis Multivariante , Oportunidad Relativa , Prevalencia , Pronóstico , Estudios Prospectivos , Factores de Riesgo , Accidente Cerebrovascular/diagnóstico , Accidente Cerebrovascular/mortalidad , Factores de Tiempo , Salud Urbana
13.
Virchows Arch ; 467(3): 265-71, 2015 Sep.
Artículo en Inglés | MEDLINE | ID: mdl-26077465

RESUMEN

Lymphatic invasion (LI) and venous invasion (VI) are regarded as important risk factors of nodal disease in early-stage colorectal cancer (CRC) but with variable reporting and poor distinction of these parameters in previous studies. This study examines the application of a double immunohistochemistry (D-IHC) method to help detect and distinguish LI and VI, in comparison with haematoxylin and eosin (H&E) staining, in a clinical series of cases of stage pT1 CRC. The aims were to demonstrate feasibility of this methodology in routine practice and compare rates of LI and VI reporting with and without D-IHC application. D-IHC utilising CAM5.2 with the endothelial marker CD34 and with the specific lymphatic endothelial marker D2-40 was performed on parallel sections from single representative paraffin tissue blocks in 28 cases of stage pT1 CRC from routine clinical practice. D-IHC significantly increased rates of both LI and VI reporting, from 14.3 to 35.7 % and from 14.3 to 28.6 %, respectively. The D-IHC methodology described is technically feasible in routine practice and potentially offers a more sensitive and robust assay for detection and distinction of LI and VI in early CRC pathology reporting. The reproducibility and clinical significance of enhanced LI and VI detection by this method and the relative importance of LI and VI in this clinical setting require further study.


Asunto(s)
Adenocarcinoma/patología , Neoplasias Colorrectales/patología , Inmunohistoquímica/métodos , Metástasis Linfática/diagnóstico , Femenino , Humanos , Masculino , Persona de Mediana Edad , Metástasis de la Neoplasia/diagnóstico , Reproducibilidad de los Resultados
14.
Diabet Med ; 31(8): 954-62, 2014 Aug.
Artículo en Inglés | MEDLINE | ID: mdl-24750341

RESUMEN

AIM: To predict mortality risk and life expectancy for patients with type 2 diabetes after a major diabetes-related complication. METHODS: The study sample, taken from the Swedish National Diabetes Register, consisted of 20 836 people with type 2 diabetes who had their first major complication (myocardial infarction, stroke, heart failure, amputation or renal failure) between January 2001 and December 2007. A Gompertz proportional hazards model was derived which determined significant risk factors associated with mortality and was used to estimate life expectancies. RESULTS: Risk of death changed over time according to type of complication, with myocardial infarction initally having the highest initial risk of death, but after the first month, the risk was higher for heart failure, renal failure and amputation. Other factors that increased the risk of death were male gender (hazard ratio 1.06, 95% CI 1.02-1.12), longer duration of diabetes (hazard ratio 1.07 per 10 years, 95% CI 1.04-1.10), smoking (hazard ratio 1.51, 95% CI 1.40-1.63) and macroalbuminuria (hazard ratio 1.14, 95% CI 1.06-1.22). Low BMI, low systolic blood pressure and low estimated GFR also increased mortality risk. Life expectancy was highest after a stroke, myocardial infarction or heart failure, lower after amputation and lowest after renal failure. Smoking and poor renal function were the risk factors which had the largest impact on reducing life expectancy. CONCLUSIONS: Risk of death and life expectancy differs substantially among the major complications of diabetes, and factors significantly increasing risk included smoking, low estimated GFR and albuminuria.


Asunto(s)
Diabetes Mellitus Tipo 2/complicaciones , Angiopatías Diabéticas/mortalidad , Cardiomiopatías Diabéticas/mortalidad , Insuficiencia Cardíaca/complicaciones , Modelos Biológicos , Infarto del Miocardio/complicaciones , Accidente Cerebrovascular/complicaciones , Anciano , Anciano de 80 o más Años , Amputación Quirúrgica/efectos adversos , Diabetes Mellitus Tipo 2/diagnóstico , Diabetes Mellitus Tipo 2/epidemiología , Diabetes Mellitus Tipo 2/mortalidad , Angiopatías Diabéticas/cirugía , Nefropatías Diabéticas/mortalidad , Femenino , Estudios de Seguimiento , Insuficiencia Cardíaca/mortalidad , Humanos , Esperanza de Vida , Masculino , Mortalidad , Infarto del Miocardio/mortalidad , Pronóstico , Estudios Prospectivos , Sistema de Registros , Insuficiencia Renal/complicaciones , Insuficiencia Renal/mortalidad , Factores de Riesgo , Accidente Cerebrovascular/mortalidad , Suecia/epidemiología
15.
Am J Transplant ; 14(6): 1368-75, 2014 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-24730453

RESUMEN

Transplant recipients are at elevated risk of melanoma and may have poorer outcomes than nontransplant recipients. We conducted a national, population-based, matched cohort study of Australian kidney transplant recipients and randomly selected members of the general population matched for age, sex, state and year of diagnosis with invasive cutaneous melanoma (1982-2003). Melanoma histopathological characteristics were extracted from cancer registry notifications and death data were obtained from the National Death Index (1982-2011). Histopathology was compared using conditional logistic regression and overall survival analyzed using Cox proportional hazard models. Compared to melanomas in nontransplant recipients (n = 202), melanomas in transplant recipients (n = 75) had a higher Clark's level (p = 0.007) and higher American Joint Committee on Cancer pathologic stage (p = 0.002), but not Breslow thickness (p = 0.11). Posttransplant melanoma conferred higher risk of death (adjusted hazard ratio 4.26, 95% CI 2.71-6.72, p < 0.001) after adjustment for the matching variables, pathologic stage, histological type and anatomic site. This was not explained by transplantation alone. Melanomas in transplant recipients are more invasive than those in nonrecipients. More aggressive tumor behavior is also supported by a markedly poorer outcome. Treatment algorithms developed for the general population with melanoma may not apply to transplant recipients. A review of patient education and skin cancer screening guidelines is warranted.


Asunto(s)
Neoplasias Renales , Melanoma/epidemiología , Vigilancia de la Población , Neoplasias Cutáneas/epidemiología , Australia/epidemiología , Estudios de Cohortes , Humanos , Melanoma/patología , Modelos de Riesgos Proporcionales , Neoplasias Cutáneas/patología , Tasa de Supervivencia
16.
World J Urol ; 32(4): 1067-74, 2014 Aug.
Artículo en Inglés | MEDLINE | ID: mdl-24129893

RESUMEN

INTRODUCTION: The 2005 international society of urological pathology consensus statement on Gleason grading in prostate cancer revised Gleason scoring in clinical practice. The potential for grade migration with this refinement poses difficulties in interpreting historical series. We report the characteristics of a recent cohort of consecutive Gleason score 9 or 10 prostate cancers in our institution. The purpose of this study was to define the clinicopathologic variables and staging information for this high-risk population, and to identify whether traditional prostate staging techniques are adequate for this subcohort of men. MATERIALS AND METHODS: A computational review of our pathology database was performed. Between May 2010 and September 2012, 1,295 consecutive biopsies were undertaken, 168 of which were high-grade tumours (12.97 %). This group were divided into two cohorts of which 84 (12.05 %) had a highest reported Gleason score of 9 (N = 79) or 10 (N = 5) and 84 were reported as Gleason 8. All biopsies were double-reported by pathologists with a special interest in uropathology. RESULTS: Men diagnosed with a Gleason pattern 5 tumour were statistically far more likely to have advanced disease on direct rectal examination of the prostate compared with Gleason sum 8 tumours (p < 0.001) and a positive first-degree family history of prostate cancer (p < 0.001). Overall, Gleason sum 9/10 prostate cancers were also found to be statistically more aggressive than Gleason sum 8 tumours on TRUS core biopsy analysis with significantly higher levels of perineural invasion (p < 0.0001) and extracapsular extension (p = 0.001) as well as a higher levels of tumour found within the core biopsy sample. Those men diagnosed with Gleason pattern 5 prostate cancer also had radiological indicators of increased tumour aggressiveness compared with Gleason sum 8 cancer with respect to bone (p = 0.0002) and visceral (p = 0.044) metastases at presentation. CONCLUSIONS: This series of Gleason score 9/10 prostate cancers serves to highlight the large disease burden, adverse pathologic features, and locally advanced nature of this aggressive subtype, which has previously been under-described in the literature, and differs from historical series in having a large high-grade cohort demonstrating high rates of metastatic disease. A history of prostate cancer amongst first-degree relatives was particularly prevalent in this population raising the issue of screening in a high-risk population. The high incidence of visceral metastatic disease at presentation supports upfront staging with CT thorax, abdomen, and pelvis in patients with Gleason 9 or 10 prostate cancers.


Asunto(s)
Adenocarcinoma/patología , Neoplasias de la Próstata/patología , Centros de Atención Terciaria , Anciano , Biopsia , Humanos , Incidencia , Irlanda , Masculino , Persona de Mediana Edad , Clasificación del Tumor , Metástasis de la Neoplasia , Próstata/patología , Estudios Retrospectivos
17.
Am J Transplant ; 13(11): 2892-901, 2013 Nov.
Artículo en Inglés | MEDLINE | ID: mdl-24102933

RESUMEN

Inconsistent and incomplete outcome reporting may make estimates of treatment effects from published randomized trials unreliable. We aimed to determine outcome reporting practices and source of differences in reporting quality among randomized trials of primary immunosuppression in kidney transplantation. We searched the Cochrane Renal Group's Specialized Register, 2000-2012, specified four core outcomes we expected trials to report, and recorded if and how completely each was reported. We identified 179 trials. One hundred sixty-eight (94%) reported death, 145 (81%) as number dead and 119 (66%) as time to death. One hundred sixty-five (92%) reported graft loss, 158 (88%) as number with graft loss and 127 (71%) as time to graft loss. One hundred twenty-one (68%) reported creatinine and 114 (64%) estimated GFR (eGFR). One hundred forty-one (79%) provided complete reports of number dead, 95 (53%) censored and 99 (55%) uncensored number with graft loss. Seventy-three (41%) provided complete reports of time to death, 67 (37%) censored and 31 (17%) uncensored time to graft loss. Complete reporting of graft function was infrequent: 62 (35%) eGFR and 50 (28%) creatinine. All four outcomes were reported in any form in 61 (34%) and completely in 28 (16%) trials. No single trial or journal characteristic was consistently associated with complete outcome reporting. Outcome reporting in kidney transplant trials is inconsistent and frequently incomplete, and published estimates of treatment effects may be unreliable.


Asunto(s)
Terapia de Inmunosupresión , Difusión de la Información , Trasplante de Riñón , Publicaciones Periódicas como Asunto/normas , Ensayos Clínicos Controlados Aleatorios como Asunto/normas , Humanos , Metaanálisis como Asunto , Sistema de Registros , Resultado del Tratamiento
18.
Intern Med J ; 43(12): 1280-6, 2013 Dec.
Artículo en Inglés | MEDLINE | ID: mdl-23279612

RESUMEN

BACKGROUND AND AIM: To identify the total duration of hospital stay, total hospital costs and outcomes at final discharge for a series of Australian patients with hip fracture. METHODS: The study type was retrospective cohort study using episode linkage within and between administrative databases. Study population is 2552 Australian veterans and war widows with primary diagnosis of hip fracture (International Classification of Diseases 10th revision, S 72.0-S 72.2) and hospital separation dates between 1 July 2008 and 30 June 2009. The unique identifying number within Department of Veterans' Affairs health service databases was used to link records for relevant hospital episodes as defined. Additional linkages were made with data for residential care admissions and date of death. RESULTS: Mean length of stay (LOS) for unlinked acute episodes was 11.1 days, and cost of hospitalisation was A$ 13,095. Fifty-one per cent of these episodes ended with transfer to ongoing hospital care, 9.5% were discharged to residential aged care (RAC), in-hospital mortality was 6.5%, and 23% were discharged to 'usual residence'. When data for all continuous episodes following hip fracture were combined, mean LOS was 30.8 days, costs were A$ 26,023 and in-hospital mortality was 11.1%. Additional linkage with RAC records identified 38% of final discharges to RAC facilities with 44% of patients returning to independent living. CONCLUSION: For complex conditions such as hip fracture, a process of patient-specific episode linkage is required to identify accurately hospital LOS, costs and patient outcomes.


Asunto(s)
Recolección de Datos/economía , Fracturas de Cadera/economía , Costos de Hospital , Tiempo de Internación/economía , Veteranos , Viudez/economía , Anciano , Anciano de 80 o más Años , Australia/epidemiología , Episodio de Atención , Femenino , Fracturas de Cadera/epidemiología , Fracturas de Cadera/terapia , Humanos , Masculino , Persona de Mediana Edad , Admisión del Paciente/economía , Admisión del Paciente/estadística & datos numéricos , Alta del Paciente/economía , Estudios Retrospectivos , Resultado del Tratamiento
19.
Bull World Health Organ ; 90(6): 436-443A, 2012 Jun 01.
Artículo en Inglés | MEDLINE | ID: mdl-22690033

RESUMEN

OBJECTIVE: To identify the hospital admission data set that best captures the incidence of acute poisoning in rural Sri Lanka. METHODS: Data were collected on all acute poisoning cases admitted to 34 primary and 1 referral hospital in Anuradhapura district from September 2008 to January 2010. Three admission data sets were compared with the "true" incidence of acute poisoning to determine the systematic bias inherent to each data set. "True" incidence was calculated by adding all direct admissions (not transfers) to primary hospitals and to the referral hospital. The three data sets were: (i) all admissions to primary hospitals only; (ii) all admissions to the referral hospital only (direct and referrals), and (iii) all admissions to both primary hospitals and the referral hospital ("all admissions"). The third is the government's routine statistical method but counts transfers twice, so for the study transferred patients were counted only once through data linkage. FINDINGS: Of 3813 patients admitted for poisoning, 3111 first presented to a primary hospital and 2287 (73.5%) were later transferred to the referral hospital, where most deaths (161/177) occurred. All data sets were representative demographically and in poisoning type, but referral hospital data yielded a more accurate case-fatality rate than primary hospital data or "all admissions" data. Admissions to primary hospitals only or to the referral hospital only underestimated the incidence of acute poisoning by about 20%, and data on "all admissions" overestimated it by 60%. CONCLUSION: Admission data from referral hospitals are easily obtainable and accurately reflect the true poisoning incidence.


Asunto(s)
Hospitales/estadística & datos numéricos , Intoxicación/epidemiología , Vigilancia de la Población/métodos , Salud Pública/estadística & datos numéricos , Derivación y Consulta/estadística & datos numéricos , Toxicología/estadística & datos numéricos , Adolescente , Adulto , Anciano , Anciano de 80 o más Años , Niño , Intervalos de Confianza , Femenino , Encuestas de Atención de la Salud , Humanos , Incidencia , Masculino , Persona de Mediana Edad , Oportunidad Relativa , Salud Pública/métodos , Factores de Riesgo , Población Rural , Factores Sexuales , Sri Lanka/epidemiología , Adulto Joven
20.
Intern Med J ; 42(8): 866-73, 2012 Aug.
Artículo en Inglés | MEDLINE | ID: mdl-22471995

RESUMEN

BACKGROUND/AIM: During the past two decades, Australian federal and state governments have funded many initiatives to bolster organ donation. Despite large investments of time, effort and money, Australia's deceased donation rate is in the bottom half of the Organisation for Economic Co-operation and Development countries and has only marginally increased from 11.9 donors per million people (pmp) in 1990 to 14.9 donors pmp in 2011. An often-cited explanation for this situation is that Australia's success in increasing levels of public health and safety through reduced traffic and stroke fatalities has reduced its number of potential deceased organ donors. We refer to this as the 'Failure Because of Success' hypothesis. Although commonly accepted, this hypothesis is largely untested. METHODS: By analysing data from international donation and transplantation organisations and international public health and safety organisations, we compared historical deceased organ donation rates with traffic and stroke fatality rates in Australia and the seven countries with the world's highest deceased organ donation rates (Spain, Portugal, France, USA, Belgium, Austria and Italy). RESULTS: Traffic fatality rates across all countries in the study have fallen dramatically during the time period, with Spain having the lowest traffic fatality rates. Stroke fatality rates demonstrate similar reductions, with France showing the lowest cerebral vascular accident mortality rates. CONCLUSION: When compared with countries with the world's highest deceased donation rates, Australia's improvements to public health and safety through reductions in traffic and stroke fatalities were neither unique nor exemplary and do not provide an adequate explanation for its low organ donor rates.


Asunto(s)
Accidentes de Tránsito/mortalidad , Accidentes de Tránsito/tendencias , Accidente Cerebrovascular/mortalidad , Obtención de Tejidos y Órganos/tendencias , Australia/epidemiología , Países en Desarrollo , Humanos
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