Your browser doesn't support javascript.
loading
Mostrar: 20 | 50 | 100
Resultados 1 - 19 de 19
Filtrar
1.
Trop Med Infect Dis ; 8(3)2023 Feb 27.
Artigo em Inglês | MEDLINE | ID: mdl-36977145

RESUMO

BACKGROUND: Hepatosplenic schistosomiasis (HSS) is a peculiar form of non-cirrhotic portal hypertension (NCPH). Although HSS patients present normal hepatic function, some evolve signs of hepatocellular failure and features of decompensated cirrhosis. The natural history of HSS-NCPH is unknown. METHODS: A retrospective study was conducted that evaluated patients who fulfilled clinical-laboratorial criteria for HSS. RESULTS: A total of 105 patients were included. Eleven patients already presented with decompensated disease and had lower transplant-free survival at 5 years than those without (61% vs. 95%, p = 0.015). Among 94 patients without prior decompensation, the median follow-up was 62 months and 44% of them had varicose bleeding (two or more episodes in 27%). Twenty-one patients presented at least one episode of decompensation (10-year probability 38%). Upon multivariate analysis, varicose bleeding and higher bilirubin levels were associated with decompensation. The 10-year probability of survival was 87%. Development of decompensation and age were predictive of mortality. CONCLUSION: HSS is characterized by multiple episodes of GI bleeding, a high probability of decompensation and reduced survival at the end of the first decade. Decompensation is more common in patients with varicose esophageal bleeding and is associated with lower survival.

2.
Am J Trop Med Hyg ; 104(2): 712-717, 2020 11 23.
Artigo em Inglês | MEDLINE | ID: mdl-33245042

RESUMO

Data on liver and spleen stiffness by 2-D shear wave elastography (2-D SWE) in hepatosplenic schistosomiasis (HES) remain scarce. We aimed to assess the correlation between single to multiple measurements of liver and spleen stiffness and to evaluate inter-hepatic lobe variability of liver stiffness measurement (LSM) using 2-D SWE in HES patients. Liver and spleen elastography were performed in HES patients in this cross-sectional study. A total of four stiffness measurements were performed in the right lobe (RL), left lobe (LL), and spleen. The correlation between the first measurement and the median of four measurements was assessed. Liver stiffness measurement of both hepatic lobes was compared. Twenty-six HES patients were included. Liver stiffness measurement was higher in the left than in the right hepatic lobe (17.9 kPa [11.3-92.0] versus 14.9 kPa [5.6-44.4]; P = 0.019). The first measurement was similar to the median of the four measurements for the RL (14.6 [5.6-60.8] versus 14.9 kPa [5.6-44.4]; P = 0.87), LL (17.4 [8.0-128.1] versus 17.9 kPa [11.3-92.0]; P = 0.54), and spleen (50.5 [10.0-157.0] versus 55.7 kPa [19.1-119.4]; P = 0.48). An excellent correlation between the first measurement and the median of four measurements for the RL (r = 0.93; P < 0.001), LL (r = 0.88; P < 0.001), and spleen (r = 0.89; P < 0.001) was observed. In HES, LSM of the LL seems to be higher than that of the right hepatic lobe. Considering the excellent correlation between the first measurement and the median of four measurements in both hepatic lobes and spleen, a single measurement would be sufficient to evaluate liver and splenic stiffness in patients with HES.


Assuntos
Técnicas de Imagem por Elasticidade/métodos , Técnicas de Imagem por Elasticidade/normas , Cirrose Hepática/diagnóstico por imagem , Cirrose Hepática/parasitologia , Fígado/diagnóstico por imagem , Esquistossomose/diagnóstico por imagem , Baço/diagnóstico por imagem , Estudos Transversais , Feminino , Humanos , Fígado/parasitologia , Masculino , Pessoa de Meia-Idade , Estudos Prospectivos , Reprodutibilidade dos Testes , Esquistossomose/complicações , Baço/parasitologia
5.
J Gastroenterol Hepatol ; 34(12): 2187-2195, 2019 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-31062880

RESUMO

BACKGROUND AND AIM: Few studies have evaluated sustained virological response (SVR) rates by direct-acting agents (DAAs) and liver stiffness measurement (LSM) changing post-SVR in limited-resource settings. We aimed to describe the effectiveness of DAAs for hepatitis C virus treatment and to assess the changing of LSM post-SVR. METHODS: This retrospective study analyzed data of consecutive hepatitis C virus-infected patients treated by DAAs from 2015 to 2017 in two tertiary centers in Brazil. SVR rates were reported by intention-to-treat and per-protocol analyses. LSM by transient elastography performed before treatment and post-SVR was compared, and logistic regression models were performed. RESULTS: Six hundred seventy-one patients (63% female, 62 years [55-68], 89% genotype 1, 8% HIV co-infected, and 64% with cirrhosis) were included. Most patients were treated by sofosbuvir/daclatasvir ± ribavirin (74%) and sofosbuvir/simeprevir ± ribavirin (21%). SVR rates (95% confidence interval [CI]) were 94.6% (92.7-96.1) and 97.8% (96.4-98.7) for intention-to-treat and per-protocol analyses, respectively. The leading adverse event was anemia (9.6% [95% CI 7.6-12.1]). Pretreatment and post-SVR12 LSM were available in 400 patients. LSM had significantly decreased after SVR (13.6 kPa [interquartile range, 10.0-21.6] vs 10.2 kPa [7.0-17.6], P < 0.001). A total of 167 patients (42%) decreased at least 30% of LSM post-SVR. The absence of type 2 diabetes (odds ratio = 1.52 [95% CI 1.05-2.21], P = 0.028) and presence of platelet count ≥ 150 × 109 /mm3 (odds ratio = 1.75 [1.23-2.50], P = 0.002) were independently associated with a significant LSM regression (≥ 30%) post-SVR. CONCLUSION: DAAs were highly effective and safe, and LSM significantly decreased after SVR in a real-life cohort in Brazil. The absence of type 2 diabetes and presence of high platelet count were independently associated with LSM decrease post-SVR.


Assuntos
Antivirais/uso terapêutico , Hepatite C Crônica/tratamento farmacológico , Injúria Renal Aguda/induzido quimicamente , Idoso , Anemia/induzido quimicamente , Antivirais/efeitos adversos , Quimioterapia Combinada , Técnicas de Imagem por Elasticidade/métodos , Feminino , Genótipo , Hepacivirus/genética , Hepacivirus/isolamento & purificação , Hepatite C Crônica/diagnóstico por imagem , Hepatite C Crônica/virologia , Humanos , Fígado/diagnóstico por imagem , Masculino , Pessoa de Meia-Idade , Estudos Retrospectivos , Fatores de Risco , Resposta Viral Sustentada , Carga Viral
6.
Liver Int ; 38(8): 1418-1426, 2018 08.
Artigo em Inglês | MEDLINE | ID: mdl-29323459

RESUMO

BACKGROUND & AIMS: Unsedated transnasal endoscopy may be used for detecting oesophageal varices. However, few studies evaluated feasibility and accuracy of this technique. We aimed to evaluate accuracy, interobserver agreement and safety of the transnasal ultrathin compared to conventional endoscopy in patients with cirrhosis. METHODS: This cross-sectional study included consecutive patients referred for screening or surveillance of oesophageal varices. Patients underwent unsedated transnasal and sedated conventional endoscopies at the same day, which were recorded in a digital video file and randomly analysed by two double-blinded endoscopists. High-risk varices were defined by the presence of large calibre or red wale marks. Accuracy, interobserver agreement and safety of transnasal were compared to conventional endoscopy. RESULTS: One hundred and thirty-three cirrhotic patients (48% male, aged of 60 ± 5, 34% Child-Pugh B/C and 71% of cases for variceal screening) were included in the study. The prevalence of oesophageal varices and high-risk oesophageal varices were 59% (n = 79) and 29% (n = 39) respectively. For the presence of oesophageal varices, transnasal GIE yielded sensitivity of 94% [95% Confidence Interval, CI 88-99], specificity of 89% [81-97] as well as positive and negative predictive value of 93% and 91% respectively. A satisfactory interobserver agreement was observed for the presence of oesophageal varices (κ = 0.89) and high-risk varices (κ = 0.65). No serious adverse events were recorded; transnasal GIE was safe and significantly associated with lower rates of hypoxaemia (P < .0001) and hypotension (P < .0001) compared to conventional endoscopy. CONCLUSIONS: Unsedated transnasal endoscopy was safe and had an excellent accuracy and high interobserver agreement for detecting oesophageal varices and for identifying high-risk varices in cirrhotic patients.


Assuntos
Sedação Consciente , Varizes Esofágicas e Gástricas/diagnóstico , Esofagoscopia/métodos , Cirrose Hepática/complicações , Idoso , Brasil , Estudos Transversais , Varizes Esofágicas e Gástricas/patologia , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Cavidade Nasal , Reprodutibilidade dos Testes , Sensibilidade e Especificidade
7.
Biomed Res Int ; 2017: 8252980, 2017.
Artigo em Inglês | MEDLINE | ID: mdl-29057268

RESUMO

AIMS: To evaluate the applicability of the Latent Class Analysis (LCA) and accuracy of transient elastography (TE), aspartate-to-platelet-ratio-index (APRI), enhanced liver fibrosis (ELF), and liver biopsy (LB) for liver fibrosis assessment in a model without a gold standard. METHODS: Significant fibrosis was defined as TE ≥ 7.1 kPa, APRI ≥ 1.5, ELF ≥ 9.37, or LB METAVIR F ≥ 2. Cirrhosis was defined as TE ≥ 12.5 kPa, APRI ≥ 2.0, ELF ≥ 10.31, or LB as METAVIR F = 4. RESULTS: 117 patients with chronic hepatitis C were included. In the LCA, for significant fibrosis the sensitivities and specificities (95% CI) were 0.92 (0.86-0.98) and 0.79 (0.72-0.86) for TE; 0.47 (0.40-0.54) and 0.99 (0.95-1.00) for APRI; 0.81 (0.74-0.88) and 0.78 (0.71-0.85) for ELF; and 0.86 (0.68-1.00) and 0.91 (0.79-1.00) for LB. For cirrhosis, the sensitivities and specificities were 0.92 (0.76-1.00) and 0.94 (0.91-0.97) for TE; 0.57 (0.37-0.77) and 0.97 (0.93-1.00) for APRI; 0.94 (0.84-1.00) and 0.88 (0.82-0.94) for ELF; and 0.30 (0.12-0.48) and 1.00 for LB. CONCLUSION: LCA was useful to evaluate accuracy of methods for liver fibrosis staging. Sensitivities and specificities of noninvasive methods were increased in LCA compared to the use of LB as the gold standard.


Assuntos
Biópsia/métodos , Técnicas de Imagem por Elasticidade/métodos , Hepatite C Crônica/sangue , Cirrose Hepática/sangue , Alanina Transaminase/sangue , Aspartato Aminotransferases/sangue , Feminino , Hepacivirus/isolamento & purificação , Hepacivirus/patogenicidade , Hepatite C Crônica/patologia , Hepatite C Crônica/virologia , Humanos , Fígado/metabolismo , Fígado/patologia , Fígado/virologia , Cirrose Hepática/patologia , Cirrose Hepática/virologia , Masculino , Pessoa de Meia-Idade , Contagem de Plaquetas
8.
Eur J Gastroenterol Hepatol ; 29(6): 730-735, 2017 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-28177946

RESUMO

BACKGROUND: Hepatosplenic schistosomiasis (HES) has not been evaluated by transient elastography so far and its correlation with ultrasound variables remains to be defined. AIMS: The aim of this study was to describe the parameters of liver and spleen stiffness in HES assessed by transient elastography in comparison with cirrhotics and controls evaluating its correlation with ultrasonographic data. PATIENTS AND METHODS: HES, hepatitis C virus-cirrhotic, and control patients were included in this sectional study. Liver and spleen stiffness were compared among the three groups. The ultrasonographic parameters were compared with transient elastography in HES patients. RESULTS: Thirty HES, 30 hepatitis C virus-cirrhotic patients, and 17 controls were included. Those with HES presented liver stiffness that was significantly higher than the controls and lower than the cirrhotics: 9.7 (3.6-75.0) versus 3.7 (2.8-5.4) versus 27.0 (14.7-61.5) kPa (P<0.001). Spleen stiffness values were comparable between hepatosplenic and cirrhotics: 66.4 (25.7-75.0) versus 69.1 (18.0-75.0) kPa (P=0.78) and were significantly higher than the controls 16.5 kPa (6.3-34.3) (P<0.001). In patients with HES, high spleen stiffness was associated with right liver lobe diameter (P=0.015), splenic artery resistance index (P=0.002), portal vein diameter (P=0.021), portal vein area (P=0.008), portal vein congestion index (P=0.035), splenic vein diameter (P=0.013), and spleen diameter (P=0.021). CONCLUSION: Liver stiffness may be a useful tool to differentiate portal hypertension related to cirrhosis from that of HES. High spleen stiffness is a potential surrogate marker of portal hypertension in this population.


Assuntos
Técnicas de Imagem por Elasticidade , Hepatite C Crônica/diagnóstico por imagem , Hipertensão Portal/diagnóstico por imagem , Cirrose Hepática/diagnóstico por imagem , Fígado/diagnóstico por imagem , Esquistossomose/diagnóstico por imagem , Baço/diagnóstico por imagem , Ultrassonografia Doppler em Cores , Adulto , Idoso , Brasil , Estudos de Casos e Controles , Estudos Transversais , Diagnóstico Diferencial , Elasticidade , Feminino , Hepatite C Crônica/virologia , Humanos , Hipertensão Portal/parasitologia , Hipertensão Portal/virologia , Fígado/parasitologia , Fígado/virologia , Cirrose Hepática/patologia , Cirrose Hepática/virologia , Masculino , Pessoa de Meia-Idade , Valor Preditivo dos Testes , Esquistossomose/parasitologia , Baço/parasitologia , Baço/virologia
11.
J Clin Gastroenterol ; 49(3): 235-41, 2015 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-24714186

RESUMO

BACKGROUND: Evaluation of fibrosis is crucial in the assessment of chronic hepatitis C (CHC). The enhanced liver fibrosis (ELF) is a serological panel including hyaluronic acid (HA), tissue inhibitor of matrix metalloproteinases-1 (TIMP-1), and amino-terminal propeptide of type III procollagen (PIIINP) that has shown good results in predicting liver fibrosis in distinct scenarios of chronic liver diseases. AIMS: We aimed to assess the performance of ELF on the detection of fibrosis and cirrhosis in a CHC patient cohort and to compare the results of ELF and transient elastography (TE-Fibroscan) using liver biopsy as reference. PATIENTS AND METHODS: One hundred twenty patients were prospectively evaluated by TE and ELF using an ADVIA Centaur automated system. The ELF score was calculated using the manufacturer's algorithm. Biopsies were classified according to the METAVIR score. Receiver operator characteristic curve analyses were performed to evaluate the accuracy of ELF and TE. RESULTS: The area under the receiver operator characteristic curve (AUROC) of ELF for the diagnosis of significant fibrosis was 0.81 [95% confidence interval (CI), 0.73-0.87], for advanced fibrosis was 0.82 (95% CI, 0.74-0.88), and for cirrhosis was 0.78 (95% CI, 0.70-0.85). Using the proposed cutoffs, ELF overestimated fibrosis in 66% (81/120) of cases and underestimated in 3% (3/120). We found no statistically significant difference when comparing the AUROC of ELF and TE for diagnosing fibrosis or cirrhosis. CONCLUSIONS: ELF panel is a good noninvasive fibrosis marker and showed similar results to TE in CHC patients. However, new cutoff points need to be established to improve its performance on patients with CHC.


Assuntos
Ensaio de Imunoadsorção Enzimática , Hepatite C Crônica/sangue , Hepatite C Crônica/diagnóstico , Ácido Hialurônico/sangue , Cirrose Hepática/virologia , Fragmentos de Peptídeos/sangue , Pró-Colágeno/sangue , Inibidor Tecidual de Metaloproteinase-1/sangue , Adulto , Idoso , Algoritmos , Área Sob a Curva , Biomarcadores/sangue , Biópsia , Técnicas de Imagem por Elasticidade , Feminino , Hepatite C Crônica/complicações , Humanos , Cirrose Hepática/diagnóstico , Masculino , Pessoa de Meia-Idade , Valor Preditivo dos Testes , Prognóstico , Estudos Prospectivos , Curva ROC , Reprodutibilidade dos Testes , Fatores de Risco
SELEÇÃO DE REFERÊNCIAS
DETALHE DA PESQUISA