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1.
Hong Kong Med J ; 29(5): 396-403, 2023 10.
Artigo em Inglês | MEDLINE | ID: mdl-37789507

RESUMO

INTRODUCTION: Patients with pancreatic cancer have a high risk of thromboembolism (TE), which may increase mortality. Most relevant studies have been conducted in Western populations. We investigated risk factors for TE in a predominantly Chinese population of patients with pancreatic cancer, along with effects of TE on overall survival. METHODS: This retrospective cohort study included patients diagnosed with exocrine pancreatic cancer in Prince of Wales Hospital in Hong Kong between 2010 and 2015. Data regarding patient demographics, World Health Organization performance status, stage, treatment, TE-related information, and time of death (if applicable) were retrieved from electronic medical records. Univariate and multivariable logistic regression analyses were performed to identify risk factors for TE. Survival analyses were performed using Kaplan-Meier analysis and Cox proportional hazards regression. RESULTS: In total, 365 patients were included in the study. The overall incidence of TE (14.8%) was lower than in Western populations. In univariate logistic regression analysis, stage IV disease and non-head pancreatic cancer were significantly associated with TE (both P=0.01). Multivariable logistic regression analysis showed that stage IV disease was a significant risk factor (odds ratio=1.08, 95% confidence interval [CI]=1.00-1.17; P=0.046). Median overall survival did not significantly differ between patients with and without TE (4.88 months vs 7.80 months, hazard ratio=1.08, 95% CI=0.80-1.49; P=0.58) and between patients with TE who received anticoagulation treatment or not (5.63 months vs 4.77 months, hazard ratio=0.72, 95% CI=0.40-1.29; P=0.27). CONCLUSION: The incidence of TE was low in our Chinese cohort. Stage IV disease increased the risk of TE. Overall survival was not affected by TE or its treatment.


Assuntos
Neoplasias Pancreáticas , Tromboembolia , Humanos , Estudos Retrospectivos , Tromboembolia/epidemiologia , Tromboembolia/etiologia , Tromboembolia/diagnóstico , Neoplasias Pancreáticas/complicações , Neoplasias Pancreáticas/epidemiologia , Fatores de Risco , Neoplasias Pancreáticas
2.
Clin Radiol ; 77(5): 319-325, 2022 05.
Artigo em Inglês | MEDLINE | ID: mdl-35000764

RESUMO

Anomalies in number and location may occur during splenic development. This review aims to offer a brief overview of splenic function and embryology and a detailed account of the imaging appearances using different imaging techniques of the normal spleen and various congenital splenic anomalies including (1) abnormal viscero-atrial situs, (2) splenogonadal fusion, (3) intrapancreatic accessory spleen, (4) wandering spleen, and (5) splenosis. Emphasis is placed on the salient features that help radiologists recognise important associations (e.g., asplenia/polysplenia in situs abnormalities), avoid diagnostic pitfalls (e.g., mistaking intrapancreatic accessory spleen as pancreatic neoplasms), and potential complications (e.g., acute torsion in wandering spleen). The correct identification of the said anomalies from more sinister causes, such as malignancies, are essential, where early intervention is necessary.


Assuntos
Síndrome de Heterotaxia , Esplenopatias , Baço Flutuante , Síndrome de Heterotaxia/diagnóstico por imagem , Humanos , Imagem Multimodal , Esplenopatias/diagnóstico por imagem
3.
Hong Kong Med J ; 27(6): 421-427, 2021 12.
Artigo em Inglês | MEDLINE | ID: mdl-34949730

RESUMO

INTRODUCTION: In 2018, the World Health Organization recommended a 6-month treatment regimen that included levofloxacin and pyrazinamide for isoniazid-resistant Mycobacterium tuberculosis without rifampicin resistance (Hr-TB). Susceptibility testing for both drugs is not routinely performed for Hr-TB in Hong Kong. This study examined the prevalences of levofloxacin and pyrazinamide resistances in Hr-TB and explored associated risk factors. METHODS: All Hr-TB isolates archived during 2018 were retrieved. Isolates were de-duplicated to identify unique cases. Levofloxacin susceptibility testing was performed using the MGIT 960 System; pncA gene sequencing was used as a surrogate indicator of pyrazinamide susceptibility. Previous laboratory records for each case were analysed. RESULTS: In total, 160 phenotypic Hr-TB cases were identified from among 3411 patients with tuberculosis (4.7%). Among these, 157 were analysed, revealing 0.6% (n=1) levofloxacin resistance and 4.5% (n=7) pyrazinamide resistance, respectively. Independent risk factors associated with pncA mutations included history of tuberculosis in the affected patient and isoniazid poly-resistance (ie, double and triple resistances), but not mono-resistance. CONCLUSION: For Hr-TB in Hong Kong, levofloxacin resistance is rare and pyrazinamide resistance-associated pncA mutations are uncommon. Routine susceptibility testing for these drugs is not indicated unless related risk factors are identified.


Assuntos
Mycobacterium tuberculosis , Tuberculose Resistente a Múltiplos Medicamentos , Amidoidrolases/genética , Antituberculosos/farmacologia , Antituberculosos/uso terapêutico , Hong Kong/epidemiologia , Humanos , Isoniazida/farmacologia , Levofloxacino/farmacologia , Testes de Sensibilidade Microbiana , Mutação , Mycobacterium tuberculosis/genética , Prevalência , Tuberculose Resistente a Múltiplos Medicamentos/tratamento farmacológico , Tuberculose Resistente a Múltiplos Medicamentos/epidemiologia
4.
BJS Open ; 5(5)2021 09 06.
Artigo em Inglês | MEDLINE | ID: mdl-34601569

RESUMO

BACKGROUND: Acute kidney injury (AKI) is increasingly being recognized after hepatectomy. This study aimed to identify factors predicting its occurrence and its impact on long-term outcome among patients with hepatocellular carcinoma (HCC). METHODS: This was a retrospective analysis of the incidence of AKI, factors predicting its occurrence, and its impact on patients undergoing hepatectomy between September 2007 and December 2018. A subgroup analysis included patients with histologically proven HCC. RESULTS: The incidence of AKI was 9.2 per cent in 930 patients. AKI was associated with increased mortality, morbidity, posthepatectomy liver failure (PHLF), and a longer hospital stay. On multivariable analysis, study period December 2013 to December 2018, diabetes mellitus, mean intraoperative BP below 72.1 mmHg, operative blood loss exceeding 377ml, high Model for End-Stage Liver Disease (MELD) score, and PHLF were predictive factors for AKI. Among 560 patients with HCC, hypertension, BP below 76.9 mmHg, blood loss greater than 378ml, MELD score, and PHLF were predictive factors. The 1-, 3-, and 5-year overall survival rates were 74.1, 59.2, and 51.6 per cent respectively for patients with AKI, and 91.8, 77.9, and 67.3 per cent for those without AKI. Corresponding 1-, 3-, and 5-year disease-free survival rates were 56.9, 42.3, and 35.4 per cent respectively in the AKI group, and 71.7, 54.5, and 46.2 per cent in the no-AKI group. AKI was an independent predictor of survival in multivariable analysis. CONCLUSION: AKI is associated with longer hospital stay, and higher morbidity and mortality rates. It is also associated with shorter long-term survival among patients with HCC. To avoid AKI, control of blood loss and maintaining a reasonable BP (72-77 mmHg) during hepatectomy is important.


Assuntos
Injúria Renal Aguda , Carcinoma Hepatocelular , Doença Hepática Terminal , Neoplasias Hepáticas , Injúria Renal Aguda/epidemiologia , Injúria Renal Aguda/etiologia , Carcinoma Hepatocelular/cirurgia , Hepatectomia/efeitos adversos , Humanos , Neoplasias Hepáticas/cirurgia , Estudos Retrospectivos , Índice de Gravidade de Doença
5.
Hong Kong Med J ; 26(5): 390-396, 2020 10.
Artigo em Inglês | MEDLINE | ID: mdl-32908008

RESUMO

INTRODUCTION: There is a global trend of increasing macrolide and fluoroquinolone resistance in Mycoplasma genitalium (MG), such that international guidelines recommend molecular detection of resistance if a patient has MG-positive test results. Tests for MG are not routinely performed in Hong Kong. This study examined the detection of MG in endocervical swabs and the associated macrolide and fluoroquinolone resistance rates. METHODS: Endocervical swabs received from two sexual health clinics in Hong Kong for routine assessments of Chlamydia trachomatis and Neisseria gonorrhoeae were also subjected to detection of MG. All MG-positive samples were tested for resistance-mediating mutations in 23S rRNA, parC, and gyrA genes. Laboratory records and past results for each patient were analysed. RESULTS: In total, endocervical swabs from 285 patients were included in this study. Mycoplasma genitalium was detected in swabs from 21 patients (7.4%) by real-time polymerase chain reaction with a commercial kit. Among MG-positive samples which were successfully analysed further, macrolide resistance-mediating mutations in 23S rRNA were found in 42.1% (8/19); fluoroquinolone resistance-related mutations in parC and gyrA were found in 65% (13/20) and 0% (0/20), respectively. All macrolide-resistant MG strains were also fluoroquinolone-resistant (42.1%, 8/19). No assessed factors were associated with the detection of MG or resistance-related mutations. CONCLUSION: In Hong Kong, MG was detected in endocervical swabs from 7.4% of patients in sexual health clinics, with high rates of macrolide and fluoroquinolone resistance. These findings warrant careful review of testing, clinical correlation, and treatment strategies for MG in the context of increasing antibiotic resistance.


Assuntos
Farmacorresistência Bacteriana/genética , Fluoroquinolonas , Macrolídeos , Tipagem Molecular/métodos , Mycoplasma genitalium/efeitos dos fármacos , Adolescente , Adulto , Idoso , Colo do Útero/microbiologia , Feminino , Hong Kong/epidemiologia , Humanos , Pessoa de Meia-Idade , Infecções por Mycoplasma/diagnóstico , Infecções por Mycoplasma/epidemiologia , Infecções por Mycoplasma/microbiologia , Mycoplasma genitalium/genética , RNA Bacteriano/análise , Doenças do Colo do Útero/diagnóstico , Doenças do Colo do Útero/epidemiologia , Doenças do Colo do Útero/microbiologia , Adulto Jovem
6.
Eur J Neurol ; 27(6): 1023-1027, 2020 06.
Artigo em Inglês | MEDLINE | ID: mdl-32133735

RESUMO

BACKGROUND AND PURPOSE: Prevention of ischaemic stroke and cardiovascular events is an established benefit of statin therapy, but the effects of statin treatment on the accrual of magnetic resonance imaging (MRI) markers of ischaemic cerebral injury remain unknown. A systematic review was performed to identify all studies that randomized patients with cardiovascular risk factors to statin treatment and assessed the effect of statin treatment on covert infarcts (asymptomatic, evident only on neuroimaging) and white matter hyperintensity (WMH) accrual on MRI. METHODS: A systematic review in MEDLINE and Scopus from inception to 23 October 2019 was performed. A random-effects model was used to calculate the pooled estimates of the crude risk ratios and standardized mean differences. RESULTS: Data from three randomized controlled trials (1430 participants) were included evaluating the effect of rosuvastatin (10 mg/day) in 668 hypertensive patients older than 60 years of age over 5 years, pravastatin (40 mg/day) in 554 elderly people more than 70 years of age over 3 years and simvastatin (20 mg/day) in 208 patients with asymptomatic middle cerebral artery stenosis over 2 years. Patients randomized to statin treatment had decreased accrual of new covert infarcts (risk ratio 0.63, 95% confidence interval 0.46-0.88) during a mean follow-up of 2-6 years. Only one study reported WMH decreased volume change in patients randomized to statin treatment compared to patients randomized to non-statin treatment (standardized mean difference -1.17; 95% confidence interval -1.33, -1.00). CONCLUSION: Our findings suggest that, in addition to stroke prevention, statin treatment can reduce the accrual of covert MRI markers of ischaemic cerebral injury.


Assuntos
Isquemia Encefálica , Acidente Vascular Cerebral , Idoso , Isquemia Encefálica/diagnóstico por imagem , Isquemia Encefálica/tratamento farmacológico , Infarto Cerebral , Humanos , Inibidores de Hidroximetilglutaril-CoA Redutases/uso terapêutico , Ensaios Clínicos Controlados Aleatórios como Assunto
7.
Transplant Proc ; 50(10): 3681-3688, 2018 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-30577255

RESUMO

Our study aimed to determine if a double-dose pre-S containing hepatitis B virus (HBV) vaccination (Sci-B-Vac) could elicit an adequate and sustainable immune response in HBV patients who developed spontaneous hepatitis B surface antibody (anti-HBs) response after liver transplant. PATIENTS AND METHODS: All patients who received transplants for HBV-related disease for >1 year with normal graft function and hepatitis B surface antigen seronegativity were evaluated. They received a 40-µg HBV vaccine if they were responders in our previous vaccine trial, if anti-HBs was positive for >1 year after liver transplant (LT), or if a peak anti-HBs at any time point after LT was >100 mIU/mL. Primary endpoint was the development of anti-HBs ≥ 10 mIU/mL from previous negative value or a 1-log increase from baseline. RESULTS: A total of 86 patients were recruited; 5 were responders from a previous trial; 45 patients had detectable anti-HBs >1 year after LT, and 36 patients had an anti-HBs >100 mIU/mL. All (5/5, 100%) previous responders responded to booster vaccination. For the remaining 81 patients, 10 of 81 (12.3%) responded. CONCLUSION: All previous responders responded to booster vaccination, implying durability and memory of HBV immune response, which is an important prerequisite for definitive host immunity for HBV. In patients who had spontaneous anti-HBs production after LT, a single vaccination can induce response in 12.3% of patients.


Assuntos
Anticorpos Anti-Hepatite B/imunologia , Vacinas contra Hepatite B/administração & dosagem , Hepatite B/prevenção & controle , Imunização Secundária/métodos , Transplante de Fígado , Adulto , Antivirais/uso terapêutico , Feminino , Antígenos de Superfície da Hepatite B/imunologia , Vírus da Hepatite B/imunologia , Humanos , Masculino , Pessoa de Meia-Idade
8.
East Asian Arch Psychiatry ; 28(4): 122-128, 2018 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-30563948

RESUMO

In Hong Kong, compulsory admission is governed by the Mental Health Ordinance Section 31 (detention of a patient under observation), Section 32 (extension of period of detention for such a patient), Section 36 (detention of certified patients), and the sections in Part IV for hospital order, transfer order, and removal order. Mental health professionals adopt both legal criteria and practice criteria for compulsory admission. The present study discusses the harm principle, the patient's decision-making capacity, the multi-axial framework for compulsory admission, and the balance between paternalism and patient liberty.


Assuntos
Internação Compulsória de Doente Mental , Liberdade , Serviços de Saúde Mental , Paternalismo , Defesa do Paciente/ética , Internação Compulsória de Doente Mental/ética , Internação Compulsória de Doente Mental/legislação & jurisprudência , Hong Kong , Hospitalização , Humanos , Legislação Médica , Tempo de Internação , Serviços de Saúde Mental/ética , Serviços de Saúde Mental/estatística & dados numéricos
9.
Med J Malaysia ; 73(4): 233-238, 2018 08.
Artigo em Inglês | MEDLINE | ID: mdl-30121686

RESUMO

INTRODUCTION: As pharmacological treatment of hypertension has become a burden worldwide, the study looked into nonpharmacological ways of reducing blood pressure. The objective was to determine if music guided, slow and deep breathing will reduce the blood pressure among patients with hypertension in eight weeks. METHODS: A participant blinded, multi-centre, randomised controlled trial was conducted in which the participants in the intervention group (IG) practiced deep breathing exercise guided by sound cues and those in the control group (CG) listened to the music. The primary end point was reduction in blood pressure at eight weeks. RESULTS: 87 patients, 46 males and 41 females with mean age of 61.1 years were recruited and 93.1% of them successfully completed the study. There was significant reduction in systolic and diastolic Blood Pressure from baseline by 8 weeks in both groups. The reduction in Mean systolic blood pressure (SBP) in the control arm was 10.5mmHg compared to 8.3mmHg (p<0.001) in intervention group. Diastolic blood pressure (DBP) reduction in control and intervention groups were 5.2 mmHg (p<0.001) and 5.6 mmHg (p<0.001) respectively. The absolute difference in SBP reduction from baseline in IG & CG was -2.2 (95%CI: -7.8 to 3.5) and DBP was -0.4 (95%CI: -2.9 to 3.6). However, blood pressure reduction between the two groups was not significant. CONCLUSIONS: Both listening to music and deep breathing exercise were associated with a clinically significant reduction in SBP and DBP. However, deep breathing exercise did not augment the benefit of music in reducing BP.


Assuntos
Exercícios Respiratórios/métodos , Hipertensão/terapia , Musicoterapia/métodos , Pressão Sanguínea , Feminino , Frequência Cardíaca , Humanos , Masculino , Pessoa de Meia-Idade , Método Simples-Cego
10.
Int J Obes (Lond) ; 42(3): 561-571, 2018 03.
Artigo em Inglês | MEDLINE | ID: mdl-29026214

RESUMO

OBJECTIVES: To test the potential efficacy of recombinant macrophage inhibitory cytokine-1 (MIC-1/GDF15) as an obesity therapeutic. METHODS: Male C57BL/6 J mice, either fed on normal chow or high-fat diet for 16 weeks to induce diet-induced obesity, were infused with either recombinant MIC-1/GDF15 or vehicle for 34 days by osmotic minipump. During the experimental period metabolic parameters were measured. Blood and tissue were collected for analysis of inflammatory markers. RESULTS: MIC-1/GDF15 decreased food intake and body weight of high-fat-fed and chow-fed mice compared with their vehicle-treated control mice. MIC-1/GDF15 reduced body weight, accompanied by greater reduction in fat mass in high-fat-fed mice compared to its effect on chow-fed mice. Further, whilst MIC-1/GDF15-treated chow-fed mice lost lean as well as fat mass, MIC-1/GDF15-treated high-fat-fed mice lost fat mass alone. This reduction in body weight and adiposity was due largely to reduced food intake, but MIC-1/GDF15-treated high-fat-fed mice also displayed increased energy expenditure that may be due to increased thermogenesis. MIC-1/GDF15-treated high-fat-fed mice also had higher circulating level of adiponectin and lower tissue expression, and circulating levels of leptin and inflammatory mediators associated with insulin resistance. Peripheral insulin and glucose intolerance were improved in both MIC-1/GDF15-treated high-fat-fed and chow-fed mice compared to that of their vehicle-treated control mice. CONCLUSIONS: MIC-1/GDF15 is highly effective in reducing adiposity and correcting the metabolic dysfunction of mice with high-fat fed. These studies suggest that MIC-1/GDF15 may be a candidate anti-obesity therapeutic.


Assuntos
Adiposidade/efeitos dos fármacos , Dieta Hiperlipídica/efeitos adversos , Fator 15 de Diferenciação de Crescimento/farmacologia , Obesidade/metabolismo , Animais , Peso Corporal/efeitos dos fármacos , Ingestão de Alimentos/efeitos dos fármacos , Metabolismo Energético/efeitos dos fármacos , Masculino , Camundongos , Camundongos Endogâmicos C57BL , Obesidade/etiologia , Obesidade/fisiopatologia , Proteínas Recombinantes/farmacologia
11.
Br J Surg ; 104(13): 1775-1784, 2017 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-29091283

RESUMO

BACKGROUND: Hepatic resection and radiofrequency ablation (RFA) are treatment options for early-stage hepatocellular carcinoma (HCC). Whether tumour recurrence and long-term survival favour either treatment has not been established. This randomized trial aimed to test the hypothesis that RFA is superior to hepatic resection in terms of lower tumour recurrence rate and better long-term survival. METHODS: Patients with early-stage HCC (solitary tumour no larger than 5 cm; or no more than 3 tumours, each 3 cm or smaller) were randomized into hepatic resection and RFA groups. Demographic and clinical characteristics, and short- and long-term outcome measures were compared between groups. Primary and secondary outcome measures were overall tumour recurrence and survival respectively. RESULTS: Clinicopathological data were similar in the two groups, which each contained 109 patients. The RFA group had a shorter treatment duration, less blood loss and shorter hospital stay than the resection group. Mortality and morbidity rates were similar in the two groups. The overall tumour recurrence rate was similar in the resection and RFA groups (71·3 versus 81·7 per cent respectively). The 1-, 3-, 5- and 10-year overall survival rates were 94·5, 80·6, 66·5 and 47·6 per cent respectively in the resection group, compared with 95·4, 82·3, 66·4 and 41·8 per cent in the RFA group (P = 0·531). Corresponding disease-free survival rates were 74·1, 50·9, 41·5 and 31·9 per cent in the resection group, and 70·6, 46·6, 33·6 and 18·6 per cent in the RFA group (P = 0·072). CONCLUSION: RFA for early-stage HCC is not superior to hepatic resection, in terms of tumour recurrence, overall survival and disease-free survival. Registration number: HKUCTR-10 (http://www.hkuctr.com).


Assuntos
Carcinoma Hepatocelular/mortalidade , Carcinoma Hepatocelular/cirurgia , Ablação por Cateter , Hepatectomia , Neoplasias Hepáticas/mortalidade , Neoplasias Hepáticas/cirurgia , Recidiva Local de Neoplasia , Adulto , Idoso , Idoso de 80 Anos ou mais , Perda Sanguínea Cirúrgica , Carcinoma Hepatocelular/patologia , Corantes , Intervalo Livre de Doença , Feminino , Hepatite C/complicações , Hong Kong/epidemiologia , Humanos , Verde de Indocianina , Tempo de Internação , Neoplasias Hepáticas/patologia , Masculino , Pessoa de Meia-Idade , Análise Multivariada , Prognóstico , Adulto Jovem
12.
Int J Law Psychiatry ; 54: 61-66, 2017.
Artigo em Inglês | MEDLINE | ID: mdl-28528124

RESUMO

Mapping forensic psychiatric services with the security needs of patients is a salient step in service planning, audit and review. A valid and reliable instrument for measuring the security needs of Chinese forensic psychiatric inpatients was not yet available. This study aimed to develop and validate the Chinese version of the Security Needs Assessment Profile for measuring the profiles of security needs of Chinese forensic psychiatric inpatients. The Security Needs Assessment Profile by Davis was translated into Chinese. Its face validity, content validity, construct validity and internal consistency reliability were assessed by measuring the security needs of 98 Chinese forensic psychiatric inpatients. Principal factor analysis for construct validity provided a six-factor security needs model explaining 68.7% of the variance. Based on the Cronbach's alpha coefficient, the internal consistency reliability was rated as acceptable for procedural security (0.73), and fair for both physical security (0.62) and relational security (0.58). A significant sex difference (p=0.002) in total security score was found. The Chinese version of the Security Needs Assessment Profile is a valid and reliable instrument for assessing the security needs of Chinese forensic psychiatric inpatients.


Assuntos
Psiquiatria Legal/instrumentação , Avaliação das Necessidades , Inquéritos e Questionários/normas , Adulto , Idoso , Estudos Transversais , Análise Fatorial , Feminino , Hong Kong/epidemiologia , Hospitais Psiquiátricos , Humanos , Pacientes Internados , Masculino , Transtornos Mentais/epidemiologia , Transtornos Mentais/terapia , Pessoa de Meia-Idade , Avaliação das Necessidades/normas , Psicometria , Reprodutibilidade dos Testes , Fatores Sexuais , Tradução , Violência , Adulto Jovem
13.
Clin Radiol ; 70(11): 1260-8, 2015 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-26233681

RESUMO

AIM: To assess the influence of menopausal status on the diagnostic accuracy of diffusion-weighted (DW) and dynamic contrast-enhanced (DCE) magnetic resonance imaging (MRI) for evaluating myometrial invasion in patients diagnosed with endometrial cancer. MATERIALS AND METHODS: In this prospective study, 91 consecutive female patients diagnosed with endometrial cancer were enrolled for preoperative evaluation using 3 T MRI. Two radiologists interpreted myometrial invasion depth on DW (b=1000 s/mm(2)) and DCE MRI images, with surgical histopathology as the reference standard. Statistical methods included kappa statistics for evaluating reader agreement and diagnostic performance analysis between pre- and postmenopausal groups. RESULTS: Reader agreement of DW MRI was poor (κ=0.20) for premenopausal patients. The diagnostic accuracy of DW MRI in detecting myometrial involvement was significantly lower in premenopausal compared with postmenopausal patients (0.42 versus 0.73, p=0.006). There was no difference in the diagnostic accuracy of DW MRI in detecting deep myometrial invasion between premenopausal and postmenopausal groups (0.94 versus 0.95, p>0.99). CONCLUSION: For premenopausal patients who plan to receive fertility-preserving treatment for endometrial cancer, DCE MRI is superior to DW MRI in excluding any possible myometrial invasion. For preoperative assessment of deep myometrial invasion, DW MRI can be a legitimate alternative to DCE MRI regardless of menopausal status and is particularly beneficial for patients at risk of nephrogenic systemic fibrosis.


Assuntos
Neoplasias do Endométrio/patologia , Miométrio/patologia , Pós-Menopausa/fisiologia , Pré-Menopausa/fisiologia , Adulto , Idoso , Idoso de 80 Anos ou mais , Meios de Contraste , Imagem de Difusão por Ressonância Magnética/normas , Feminino , Gadolínio DTPA , Humanos , Pessoa de Meia-Idade , Invasividade Neoplásica , Variações Dependentes do Observador , Estudos Prospectivos , Sensibilidade e Especificidade
14.
Br J Cancer ; 112(8): 1384-91, 2015 Apr 14.
Artigo em Inglês | MEDLINE | ID: mdl-25867265

RESUMO

BACKGROUND: Biomarkers are needed to improve current diagnosis and surveillance strategies for patients with Barrett's oesophagus (BO) and oesophageal adenocarcinoma (OAC). Macrophage inhibitory cytokine 1/growth differentiation factor 15 (MIC-1/GDF15) tissue and plasma levels have been shown to predict disease progression in other cancer types and was therefore evaluated in BO/OAC. METHODS: One hundred thirty-eight patients were studied: 45 normal oesophagus (NE), 37 BO, 16 BO with low-grade dysplasia (LGD) and 40 OAC. RESULTS: Median tissue expression of MIC-1/GDF15 mRNA was ⩾25-fold higher in BO and LGD compared to NE (P<0.001); two-fold higher in OAC vs BO (P=0.039); and 47-fold higher in OAC vs NE (P<0.001). Relative MIC-1/GDF15 tissue expression >720 discriminated between the presence of either OAC or LGD vs NE with 94% sensitivity and 71% specificity (ROC AUC 0.86, 95% CI 0.73-0.96; P<0.001). Macrophage inhibitory cytokine 1/growth differentiation factor 15 plasma values were also elevated in patients with OAC vs NE (P<0.001) or BO (P=0.015).High MIC-1/GDF15 plasma levels (⩾1140 pg ml(-1)) were an independent predictor of poor survival for patients with OAC (HR 3.87, 95% CI 1.01-14.75; P=0.047). CONCLUSIONS: Plasma and tissue levels of MIC-1/GDF15 are significantly elevated in patients with BO, LGD and OAC. Plasma MIC-1/GDF15 may have value in diagnosis and monitoring of Barrett's disease.


Assuntos
Adenocarcinoma/genética , Esôfago de Barrett/genética , Neoplasias Esofágicas/genética , Fator 15 de Diferenciação de Crescimento/genética , Adenocarcinoma/metabolismo , Adenocarcinoma/patologia , Idoso , Esôfago de Barrett/metabolismo , Esôfago de Barrett/patologia , Estudos de Casos e Controles , Neoplasias Esofágicas/metabolismo , Neoplasias Esofágicas/patologia , Feminino , Fator 15 de Diferenciação de Crescimento/metabolismo , Humanos , Masculino , Pessoa de Meia-Idade , Prognóstico , Estudos Retrospectivos
15.
Acta Clin Belg ; 70(2): 124-6, 2015 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-25324190

RESUMO

Papillary thyroid cancer is the most common form of thyroid malignancy in children and adult with frequent metastases to the cervical lymph nodes. We present a case of metastatic papillary thyroid cancer with remarkable imaging findings of consecutive metastatic calcified lymph nodes resembling a chain of rings. While accompanying by a coarsely calcified thyroid mass, possible thyroid cancer should be considered and serve as a guide to warrant further thyroid cancer evaluation.


Assuntos
Calcinose/diagnóstico por imagem , Carcinoma/diagnóstico por imagem , Linfonodos/diagnóstico por imagem , Neoplasias da Glândula Tireoide/diagnóstico por imagem , Calcinose/patologia , Carcinoma/patologia , Carcinoma Papilar , Humanos , Linfonodos/patologia , Metástase Linfática , Masculino , Pessoa de Meia-Idade , Pescoço/diagnóstico por imagem , Câncer Papilífero da Tireoide , Neoplasias da Glândula Tireoide/patologia , Tomografia Computadorizada por Raios X
16.
Ann Oncol ; 25(3): 689-694, 2014 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-24496920

RESUMO

BACKGROUND: There is a clinical need to improve the efficacy of standard cetuximab + concurrent intensity-modulated radiation therapy (IMRT) for patients with locally and/or regionally advanced HNSCC. Taxanes have radiosensitizing activity against HNSCC, and nab-paclitaxel may offer therapeutic advantage in comparison with other taxanes. PATIENTS AND METHODS: This was a single-institution phase I study with a modified 3 + 3 design. Four dose levels (DLs) of weekly nab-paclitaxel were explored (30, 45, 60, and 80 mg/m(2)), given with standard weekly cetuximab (450 mg/m(2) loading dose followed by 250 mg/m(2) weekly) and concurrent IMRT (total dose, 70 Gy). RESULTS: Twenty-five eligible patients (20 M, 5 F) enrolled, with median age 58 years (range, 46-84 years). Primary tumor sites were oropharynx, 19 (10 human papillomavirus [HPV] pos, 8 HPV neg, 1 not done); neck node with unknown primary, 2; larynx 2; and oral cavity and maxillary sinus, 1 each. Seven patients had received prior induction chemotherapy. Maximum tolerated dose (MTD) was exceeded at DL4 (nab-paclitaxel, 80 mg/m(2)) with three dose-limiting toxicities (DLTs) (grade 3 neuropathy, grade 3 dehydration, with grade 3 mucositis grade 3 anemia) among five assessable patients. There was only one DLT (grade 3 supraventricular tachycardia) among six patients at DL3 (nab-paclitaxel, 60 mg/m(2)), and this was deemed the MTD. Among 23 assessable patients, the most common ≥ g3 AEs were lymphopenia 100%, functional mucositis 65%, and pain in throat/oral cavity 52%. At a median follow-up of 33 months, 2-year failure-free survival (FFS) is 65% [95% confidence interval (CI) 42% to 81%] and 2-year overall survival (OS) is 91% (95% CI 69-97). CONCLUSION: The recommended phase II dose for nab-paclitaxel is 60 mg/m(2) weekly when given standard weekly cetuximab and concurrent IMRT. This regimen merits further study as a nonplatinum alternative to IMRT + cetuximab alone. CLINICALTRIALSGOV ID: NCT00736619.


Assuntos
Carcinoma de Células Escamosas/tratamento farmacológico , Carcinoma de Células Escamosas/radioterapia , Terapia Combinada/efeitos adversos , Neoplasias de Cabeça e Pescoço/tratamento farmacológico , Neoplasias de Cabeça e Pescoço/radioterapia , Dose Máxima Tolerável , Idoso , Idoso de 80 Anos ou mais , Albuminas/efeitos adversos , Albuminas/uso terapêutico , Anticorpos Monoclonais Humanizados/efeitos adversos , Anticorpos Monoclonais Humanizados/uso terapêutico , Antineoplásicos Fitogênicos/efeitos adversos , Antineoplásicos Fitogênicos/uso terapêutico , Protocolos de Quimioterapia Combinada Antineoplásica/efeitos adversos , Protocolos de Quimioterapia Combinada Antineoplásica/uso terapêutico , Carcinoma de Células Escamosas/mortalidade , Cetuximab , Quimiorradioterapia , Receptores ErbB/antagonistas & inibidores , Feminino , Neoplasias de Cabeça e Pescoço/mortalidade , Humanos , Masculino , Pessoa de Meia-Idade , Estadiamento de Neoplasias , Paclitaxel/efeitos adversos , Paclitaxel/uso terapêutico , Radioterapia de Intensidade Modulada , Carcinoma de Células Escamosas de Cabeça e Pescoço
17.
J Hum Nutr Diet ; 27(3): 219-26, 2014 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-24112810

RESUMO

BACKGROUND: Lower urinary tract symptoms (LUTS) in men are associated with obesity, particularly central obesity as measured by waist circumference (WC), and may improve with weight loss. We aimed to compare effects of a meal-replacement based diet with isocaloric reduced-fat plan on LUTS and nutrient intake in obese Asian men. METHODS: Obese Asian [mean (range) body mass index of 32.9 (30.5-42.3) kg m(-2) ] men [mean (range) age 40.2 (30-61) years] were randomised to a reduced-fat (< 30% of energy) diet [conventional reduced-fat diet (CD) group; n = 23] or meal-replacement-based plan [meal replacement (MR) group; n = 23], to reduce daily intake by 2000 kJ for 12 weeks. RESULTS: CD and MR groups had statistically significant and similar reductions in weight (-2.6 ± 1.9 kg versus -4.2 ± 3.8 kg), overall LUTS severity measured with International Prostate Symptom Scale (IPSS) scores (-1.71 ± 1.93 points versus -2.42 ± 2.12 points) and insulin resistance [homeostasis model assessment (HOMA) calculated from plasma glucose and insulin]. The MR group had significantly greater decreases in WC (-4.8 ± 3.3 cm versus -2.5 ± 2.3 cm), fat mass (-2.47 ± 3.63 kg versus -1.59 ± 2.32 kg), fat intake, plasma C-reactive protein, and in storage LUTS score (-1.59 ± 1.33 points versus -1.00 ± 0.87 points), which was associated with a decreased fat intake (r = 0.48, P = 0.03). A decrease in overall IPSS score was associated with reductions in weight, WC and HOMA. CONCLUSIONS: Weight loss as a result of CD or MR had similar efficacy in relieving LUTS. MR produced greater reductions in fat intake, adiposity and storage LUTS.


Assuntos
Dieta com Restrição de Gorduras , Ingestão de Energia , Obesidade/complicações , Doenças Urológicas/dietoterapia , Doenças Urológicas/etiologia , Adiposidade , Adulto , Glicemia/análise , Dieta , Metabolismo Energético , Humanos , Insulina/sangue , Resistência à Insulina , Masculino , Refeições , Pessoa de Meia-Idade , Doenças Prostáticas/dietoterapia , Circunferência da Cintura , Redução de Peso
18.
Med J Malaysia ; 68(2): 129-35, 2013 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-23629558

RESUMO

BACKGROUND: Hypertension is the number one cardiovascular risk factor in Malaysia. This study aimed to evaluate the effectiveness of a Community-Based Cardiovascular Risk Factors Intervention Strategies (CORFIS) in the management of hypertension in primary care. METHODS: This is a pragmatic, non-randomized controlled trial. Seventy general practitioners (GPs) were selected to provide either CORFIS (44 GPs) or conventional care (26 GPs) for 6 months. A total of 486 hypertensive patients were recruited; 309 were in the intervention and 177 in the control groups. Primary outcome was the proportion of hypertensive patients who achieved target blood pressure (BP) of <140/90mmHg (for those without diabetes mellitus) and <130/80mmHg (with diabetes mellitus). Secondary outcomes include change in the mean/median BP at 6-month as compared to baseline. RESULTS: The proportion of hypertensive patients who achieved target BP at 6-month was significantly higher in the CORFIS arm (69.6%) as compared to the control arm (57.6%), P=0.008. Amongst those who had uncontrolled BP at baseline, the proportion who achieved target BP at 6-month was also significantly higher in the CORFIS arm (56.6%) as compared to the control arm (34.1%), p<0.001. There was no difference in the patients who had already achieved BP control at baseline. There were significant reductions in SBP in the CORFIS arm (median -9.0mmHg; -60 to 50) versus control (median -2mmHg; -50 to 48), p=0.003; as well as in DBP (CORFIS arm: median -6.0mmHg; ranged from -53 to 30 versus control arm: median 0.0mmHg; ranged from -42 to 30), p<0.001. CONCLUSIONS: Patients who received CORFIS care demonstrated significant improvements in achieving target BP.


Assuntos
Doenças Cardiovasculares , Hipertensão , Pressão Sanguínea , Diabetes Mellitus , Humanos , Fatores de Risco
19.
J Cachexia Sarcopenia Muscle ; 3(4): 239-43, 2012 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-22936174

RESUMO

Anorexia/cachexia is a common and currently mostly untreatable complication of advanced cancer. It is also a feature of a number of chronic diseases and can also occur as part of the normal ageing process. Over recent years, two different, but sometimes overlapping, processes have been identified to mediate anorexia/cachexia: those that act primarily on muscle reducing its mass and function, and processes that decrease nutrition leading to loss of both fat and muscle. In the case of at least some cancers, the latter process is sometimes driven by marked overexpression of macrophage inhibitory cytokine-1/growth differentiation factor 15 (MIC-1/GDF15). MIC-1/GDF15 is a transforming growth factor beta (TGF-ß) family cytokine that is found in the serum of all normal individuals at an average concentration of about 0.6 ng/ml. Its increased expression in both cancers and other diseases can result in 10-100-fold or more elevation of its serum levels. In experimental animals, serum MIC-1/GDF15 levels at the lower end of this range induce anorexia by direct actions of the circulating cytokine on feeding centres in the brain. Mice with tumours overexpressing MIC-1/GDF15 display decreased food intake, loss of lean and fat mass and cachexia. That this process also mediates anorexia/cachexia in humans is suggested by the fact that there is a direct correlation between the degree of serum MIC-1/GDF15 elevation and the amount of cancer-related weight loss, the first such relationship demonstrated. Further, in experimental animals, weight loss can be reversed by neutralisation of tumour-produced MIC-1/GDF15 with a specific monoclonal antibody, suggesting the possibility of effective therapy of patients with the devastating complication of anorexia/cachexia.

20.
Eur J Gynaecol Oncol ; 33(3): 321-3, 2012.
Artigo em Inglês | MEDLINE | ID: mdl-22873111

RESUMO

Recurrent ovarian cancer with long-term survival is uncommon and often associated with poor prognosis. We report three cases of patients with advanced ovarian cancer who have achieved long-term disease-free survival following a single prior relapse. Case 1 relapsed with a localized bulky tumor and received a complete surgical resection and chemotherapy. Case 2 had a persistent central pelvic tumor after debulking surgery and second-line chemotherapy, and yet achieved excellent control with concurrent chemoradiation to the true pelvis. Case 3 relapsed with paraaortic lymph node metastasis and probable lung metastasis (subsequently negated by positron emission tomography) and received chemotherapy alone. These three patients have since remained disease-free for 13, 12, and seven years, respectively, since their first relapse. We conclude that select patients can obtain long-term disease-free survival after the first relapse by accurate restaging and aggressive multimodality treatment.


Assuntos
Adenocarcinoma de Células Claras/terapia , Carcinoma Endometrioide/terapia , Recidiva Local de Neoplasia/terapia , Neoplasias Ovarianas/patologia , Neoplasias Ovarianas/terapia , Adenocarcinoma de Células Claras/secundário , Idoso , Antineoplásicos/uso terapêutico , Carcinoma Endometrioide/secundário , Terapia Combinada , Intervalo Livre de Doença , Feminino , Humanos , Histerectomia , Pessoa de Meia-Idade , Estadiamento de Neoplasias , Ovariectomia , Radioterapia , Salpingectomia , Fatores de Tempo
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