Your browser doesn't support javascript.
loading
Mostrar: 20 | 50 | 100
Resultados 1 - 20 de 21
Filtrar
1.
Vnitr Lek ; 69(3): 198-206, 2023.
Artigo em Inglês | MEDLINE | ID: mdl-37468316

RESUMO

Gastroenterology, hepatology and digestive endoscopy are rapidly evolving disciplines with significant advances in the diagnostics and treatment in the entire gastrointestinal tract. The aim of our article was to summarize new perspectives on relevant situations in gastroenterology and hepatology like acute pancreatitis, functional dyspepsia, rational indication of proton pump inhibitors, inflammatory bowel diseases (IBD), cholestatic liver diseases, alcohol induced hepatitis, non-alcoholic fatty live disease (NAFLD) and patophysiology of bilirubin and bile acids. Digestive endoscopy represents an interventional part of gastroenterology and key recent topics are mentioned like pancreatic cancer screening, arteficial intelligence, resection of low-risk neoplastic lesions, enteroscopy techniques, cholangio- and pancreatiscopy and extraluminal expansion of endoscopy techniques by means of endoscopic submucosal and transmural dissection, endoscopic myotomy and lumen apposing stents.


Assuntos
Gastroenterologia , Pancreatite , Humanos , Doença Aguda , Endoscopia Gastrointestinal/métodos , Trato Gastrointestinal , Endoscopia
2.
Vasc Endovascular Surg ; 57(4): 373-378, 2023 May.
Artigo em Inglês | MEDLINE | ID: mdl-36593684

RESUMO

OBJECTIVES: Transjugular intrahepatic portosystemic shunt (TIPS) is regularly used in treatment of clinically significant portal hypertension. Liver transplant recipients are, however, rarely indicated for the procedure. The study retrospectively examines the results of TIPS placement in 6 patients after OLT. METHODS: 4 males and 2 females (aged 36 to 62 years), treated with TIPS between 2007 a 2018, were included in the study. 5 patients had previously undergone liver transplantation for liver graft cirrhosis, 1 patient for Budd-Chiari syndrome. The piggyback caval reconstruction technique was selected in 4/6 cases. PH developed after OLT due to the recurrence of underlying liver condition and sinusoidal obstruction syndrome in half of the cases, respectively. Indications for TIPS were refractory ascites in 4 cases and variceal bleeding in 2 cases. RESULTS: Standard TIPS technique was used and technical success was achieved in all cases with a procedure-related complication in 1 patient. One patient died shortly after TIPS placement. The remaining patients all reported regression of clinically significant PH. Late complications appeared in 2 patients. Liver retransplantation after TIPS creation was performed in 1 case. Median TIPS patency was 55 months. 2/6 patient continue to thrive with a patent shunt. CONCLUSIONS: Transjugular intrahepatic portosystemic shunt in OLT recipients is technically feasible. Favorable clinical outcomes were reported particularly in patients treated for sinusoidal obstruction syndrome who were indicated to TIPS for refractory ascites.


Assuntos
Varizes Esofágicas e Gástricas , Hepatopatia Veno-Oclusiva , Transplante de Fígado , Derivação Portossistêmica Transjugular Intra-Hepática , Masculino , Feminino , Humanos , Adulto , Varizes Esofágicas e Gástricas/etiologia , Transplante de Fígado/efeitos adversos , Derivação Portossistêmica Transjugular Intra-Hepática/efeitos adversos , Derivação Portossistêmica Transjugular Intra-Hepática/métodos , Ascite/etiologia , Ascite/cirurgia , Estudos Retrospectivos , Hepatopatia Veno-Oclusiva/etiologia , Resultado do Tratamento , Hemorragia Gastrointestinal/etiologia
4.
Sci Rep ; 12(1): 19543, 2022 11 15.
Artigo em Inglês | MEDLINE | ID: mdl-36379995

RESUMO

In the literature on the safety of ursodeoxycholic acid (UDCA) during breastfeeding, insufficient data has been reported to date. Thus, the aim of our study was to analyze bile acid (BA) concentrations in breast milk in a cohort of patients, treated with UDCA, and with various cholestatic liver diseases. The study was carried out on a cohort of 20 patients with various cholestatic diseases. All the patients were treated with UDCA (500-1500 mg daily). Concentrations of BA, sampled on day 3 after delivery were analyzed using the GS-MS technique, and then compared to untreated women. Total BA concentrations in the breast milk of the UDCA-treated patients were equal to those of the untreated women controls (3.2 ± 1 vs. 3.2 ± 0.2 µmol/L, respectively). The UDCA concentrations in breast milk remained negligible in UDCA-treated patients (0.69 µmol/L), and in any event did not contribute to the newborn BA pool. No apparent side-effects of the maternal UDCA treatment were observed in any newborn infant, and no deterioration in postnatal development was observed during the routine 1-year follow-ups. Therapeutic administration of UDCA during lactation is safe for breastfed babies since UDCA only gets into breast milk in negligible amounts. UDCA treatment should be allowed and included into the guidelines for the therapy of cholestatic diseases in breastfeeding mothers.


Assuntos
Colestase , Ácido Ursodesoxicólico , Recém-Nascido , Humanos , Feminino , Ácido Ursodesoxicólico/farmacologia , Ácidos e Sais Biliares/uso terapêutico , Leite Humano , Lactação , Colestase/tratamento farmacológico
5.
Acta Medica (Hradec Kralove) ; 65(3): 75-82, 2022.
Artigo em Inglês | MEDLINE | ID: mdl-36735884

RESUMO

INTRODUCTION: To date, there is not generally accepted and universal indicator of activity, and functional integrity of the small intestine in patients with coeliac disease. The aim of our study was to investigate whether serum concentrations of the non-essential amino acids citrulline and ornithine might have this function. METHODS: We examined serum citrulline and ornithine concentrations in a subgroup of patients with proven coeliac disease and healthy controls (blood donors). RESULTS: A total of 94 patients with coeliac disease (29 men, mean age 53 ± 18 years; 65 women, mean age 44 ± 14 years) and 35 healthy controls (blood donors) in whom coeliac disease was serologically excluded (10 men, mean age 51 ± 14 years; 25 women, mean age 46 ± 12 years) were included in the study. Significantly lower concentrations of serum ornithine were found in patients with coeliac disease (mean 65 ± 3 µmol/L; median 63 µmol/L, IQR 34 µmol/L, p < 0.001). No statistically nor clinically significant differences were found in the citrulline concentrations between the study and control group. CONCLUSIONS: Serum ornithine (but not citrulline) may be useful for assessing the functional status of the small intestine in uncomplicated coeliac disease. Further studies involving more detailed analysis of dietary and metabolic changes in patients will be needed to reach definitive conclusions.


Assuntos
Doença Celíaca , Citrulina , Masculino , Humanos , Feminino , Adulto , Pessoa de Meia-Idade , Idoso , Citrulina/metabolismo , Ornitina/metabolismo , Dieta
6.
Scand J Clin Lab Invest ; 81(2): 116-120, 2021 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-33428478

RESUMO

The liver and the biliary tree form the main excretory route of manganese (Mn) and copper (Cu). Cholestasis, can lead to the accumulation of these trace elements in the organism, resulting in toxicity to the basal ganglia of the central nervous system. The aim of our study was to reveal the influence of long-term cholestasis on the Mn and Cu levels in the blood of patients with primary biliary cirrhosis (PBC) and primary sclerosing cholangitis (PSC). We recruited patients with PBC (n = 20) and PSC (n = 32). A control group (n = 40) was also set up. We also examined serum bile acid concentrations and liver enzyme activities. We did not observe any significant differences in any of these parameters between the PBC and PSC groups. The Mn and Cu levels in the PBC and PSC patients differed significantly from the that in the control group (p < 0.0001 and p < .021, respectively). Patients in whom the laboratory cholestasis markers normalized during ursodeoxycholic acid treatment (18/52;35%) presented with significantly lower levels of Mn and Cu (p = .015 and p = .012, respectively). Ten PSC patients showed normal levels of Mn and Cu six months after liver transplantation. Fine tremors, rigidity, dysarthria, and hypomimia were reported in nine (23%), eight (20%), four (10%), and eight (20%) patients, respectively. In addition to monitoring the cholestasis levels, liver function, and Mn and Cu levels during the long-term treatment of PBC and PSC patients, it is important to also regularly monitor the occurrence and development of extrapyramidal symptoms of Parkinson's-like syndromes.


Assuntos
Colangite Esclerosante/sangue , Cobre/sangue , Cirrose Hepática Biliar/sangue , Manganês/sangue , Adulto , Idoso , Estudos de Casos e Controles , Colangite Esclerosante/terapia , Feminino , Humanos , Cirrose Hepática Biliar/terapia , Transplante de Fígado , Masculino , Pessoa de Meia-Idade , Adulto Jovem
7.
Vnitr Lek ; 66(4): 32-41, 2020.
Artigo em Inglês | MEDLINE | ID: mdl-32972182

RESUMO

Liver cirrhosis is the most common reason of clinically significant portal hypertension in the western countries. Portal vein or hepatic veins thrombosis is less common. Variceal bleeding is the most severe life threatening complication of portal hypertension. Appropriate treatment includes initial general management, fluid replacement and hemosubstitution, antibiotic prophylaxis, vasoactive medication and endoscopic treatment. Transjugular intrahepatic portosystemic shunt (TIPS) is standard option in case of first line treatment failure. Dedicated esophageal metal stent or balloon tamponade could be used as a bridge to the TIPS or in case of TIPS contraindication. Non selective beta-blockers and endoscopic therapy are used in primary and secondary prophylaxis.


Assuntos
Varizes Esofágicas e Gástricas , Hipertensão Portal , Derivação Portossistêmica Transjugular Intra-Hepática , Varizes Esofágicas e Gástricas/complicações , Varizes Esofágicas e Gástricas/terapia , Hemorragia Gastrointestinal/etiologia , Hemorragia Gastrointestinal/terapia , Humanos , Hipertensão Portal/complicações , Cirrose Hepática/complicações
8.
Vnitr Lek ; 66(5): 287-300, 2020.
Artigo em Inglês | MEDLINE | ID: mdl-32942866

RESUMO

Cholestasis is defined as hepatocyte and cholangiocyte bile excretion failure or failure of bile transport to the duodenum. Primary biliary cholangitis (PBC) and primary sclerosing cholangitis as chronic progressive cholestatic diseases are the common reasons of chronic cholestasis. Altogether with cholestatic laboratory picture the pruritus, liver osteodystrophy and fatigue are associated symptoms in both diseases. All associated symptoms and complications are needed to be diagnosed and treated early. In case of liver cirrhosis complicatons of accompanied portal hypertension should be treated and liver transplantation must be considered in all those patients. Diagnosis of PBC is based on cholestatic laboratory features, animitochondrial antibody positivity or typical histological patern. Most patients are asymptomatic in time of diagnosis. First line therapy is ursodeoxycholic acid. In case of first line therapy failure, the prognosis is unfavourable. In this case, second line therapy must be considered. In case of PSC the diagnosis is based on MRCP finding mainly, laboratory test and liver biopsy in some cases. Progressive inflamatory and fibrosing impairment affecting intrahepatic and extrahepatict biliary ducts and strong association with inflamatory bowel disease, especially ulcerative colitis is typical for PSC. Endoscopic therapy with dilatation of dominant structure is crucial. The effect of pharmacotherapy is still being discussed and ursodeoxycholic acid could be used. During follow up patients are in the risk of bacterial cholangitis and malignant tumor development (cholangiogenic and colorectal carcinoma mainly). In PSC patients the severe pruritus and reccurent bacterial cholangitis could be an indication for the liver transplantation.


Assuntos
Colangite Esclerosante , Colestase , Cirrose Hepática Biliar , Ductos Biliares/patologia , Colangite Esclerosante/complicações , Colangite Esclerosante/diagnóstico , Colangite Esclerosante/terapia , Colestase/patologia , Humanos , Cirrose Hepática Biliar/complicações , Cirrose Hepática Biliar/diagnóstico , Cirrose Hepática Biliar/terapia , Ácido Ursodesoxicólico
9.
Gastroenterol Res Pract ; 2019: 5371381, 2019.
Artigo em Inglês | MEDLINE | ID: mdl-31929784

RESUMO

Differential diagnosis between benign and malignant biliary stenosis can be difficult in clinical practice. Histology of biopsy specimens is often indeterminate. Laboratory markers (serum bilirubin > 75 µmol/L, carbohydrate antigen 19-9 > 400 U/mL) and the length of stenosis (>15 mm) can be helpful but are not specific enough. The aim of this study was to investigate bile acids in liver bile of patients with benign and malignant biliary stenosis and controls without stenosis. A total of 73 patients entered the study: 7 subjects with benign biliary stenosis (6 men, 1 woman; 68 ± 13 years old), 21 with malignant biliary stenosis (15 men, 6 women; 72 ± 14 years old), and 45 patients without biliary stenosis (22 men, 23 women; 70 ± 13 years old); out of those, 25 subjects have and 20 do not have choledocholithiasis. Twenty-three different bile acids were investigated by high-performance liquid chromatography/mass spectrometry. Serum total bilirubin was significantly higher in patients with malignant biliary stenosis compared with nonstenotic controls (p = 0.005). Significant relationship (r > 0.7) was found between several pairs of bile acids. Significantly lower bile acid concentrations in malignant biliary stenosis compared to controls without stenosis were found for GLCA (p = 0.032), GUDCA (p = 0.032), GCDCA (p = 0.006), GDCA (p = 0.031), GHCA (p = 0.005), TUDCA (p = 0.044), and TDCA (p = 0.036). Significant difference in cholic acid was found between benign and malignant stenosis (p = 0.022). Analysis of bile acids might be helpful in the differential diagnosis of malignant and benign biliary stenosis. More patients need to be enrolled in further studies so that the real diagnostic yield of bile acids can be determined.

10.
Ann. hepatol ; 16(1): 140-148, Jan.-Feb. 2017. graf
Artigo em Inglês | LILACS | ID: biblio-838096

RESUMO

Abstract: Introduction and aim. Hepatic encephalopathy (HE) is a common complication of transjugular intrahepatic portosystemic shunting (TIPS). It is associated with a reduced quality of life and poor prognosis. The aim of this study was to compare two groups of patients who did and did not develop overt HE after TIPS. We looked for differences between these groups before TIPS. Material and methods. A study of 895 patients was conducted based on a retrospective analysis of clinical data. Data was analyzed using Fisher’s exact test, χ2, Mann Whitney test, unpaired t-test and logistic regression. After the initial analyses, we have looked at a regression models for the factors associated with development of HE after TIPS. Results. 257 (37.9%) patients developed HE after TIPS. Patients’ age, pre-TIPS portal venous pressure, serum creatinine, aspartate transaminase, albumin, presence of diabetes mellitus and etiology of portal hypertension were statistically significantly associated with the occurrence of HE after TIPS (p < 0.01). However, only the age, pre-TIPS portal venous pressure, serum creatinine, presence of diabetes mellitus and etiology of portal hypertension contributed to the regression model. Patients age, serum creatinine, presence of diabetes mellitus and portal vein pressure formed the model describing development of HE after TIPS for a subgroup of patients with refractory ascites. Conclusion. We have identified, using a substantial sample, several factors associated with the development of HE after TIPS. This could be helpful in further research.


Assuntos
Humanos , Adolescente , Adulto , Pessoa de Meia-Idade , Idoso , Idoso de 80 Anos ou mais , Encefalopatia Hepática/etiologia , Derivação Portossistêmica Transjugular Intra-Hepática/efeitos adversos , Hipertensão Portal/cirurgia , Fatores de Tempo , Pressão Venosa , Biomarcadores/sangue , Distribuição de Qui-Quadrado , Modelos Logísticos , Encefalopatia Hepática/diagnóstico , Estudos Retrospectivos , Fatores de Risco , Fatores Etários , Resultado do Tratamento , República Tcheca , Creatinina/sangue , Complicações do Diabetes/etiologia , Hipertensão Portal/diagnóstico , Hipertensão Portal/etiologia , Hipertensão Portal/fisiopatologia
11.
Ann Hepatol ; 16(1): 140-148, 2017.
Artigo em Inglês | MEDLINE | ID: mdl-28051803

RESUMO

Introduction and Aim: Hepatic encephalopathy (HE) is a common complication of transjugular intrahepatic portosystemic shunting (TIPS). It is associated with a reduced quality of life and poor prognosis. The aim of this study was to compare two groups of patients who did and did not develop overt HE after TIPS. We looked for differences between these groups before TIPS. MATERIALS AND METHODS: A study of 895 patients was conducted based on a retrospective analysis of clinical data. Data was analyzed using Fisher's exact test, Chi-square, Mann Whitney test, unpaired t-test and logistic regression. After the initial analyses, we have looked at a regression models for the factors associated with development of HE after TIPS. RESULTS: 257 (37.9%) patients developed HE after TIPS. Patients' age, pre-TIPS portal venous pressure, serum creatinine, aspartate transaminase, albumin, presence of diabetes mellitus and etiology of portal hypertension were statistically significantly associated with the occurrence of HE after TIPS (p < 0.01). However, only the age, pre-TIPS portal venous pressure, serum creatinine, presence of diabetes mellitus and etiology of portal hypertension contributed to the regression model. Patients age, serum creatinine, presence of diabetes mellitus and portal vein pressure formed the model describing development of HE after TIPS for a subgroup of patients with refractory ascites. CONCLUSION: we have identified, using a substantial sample, several factors associated with the development of HE after TIPS. This could be helpful in further research.


Assuntos
Encefalopatia Hepática/etiologia , Hipertensão Portal/cirurgia , Derivação Portossistêmica Transjugular Intra-Hepática/efeitos adversos , Adolescente , Adulto , Fatores Etários , Idoso , Idoso de 80 Anos ou mais , Biomarcadores/sangue , Distribuição de Qui-Quadrado , Creatinina/sangue , República Tcheca , Complicações do Diabetes/etiologia , Feminino , Encefalopatia Hepática/diagnóstico , Humanos , Hipertensão Portal/diagnóstico , Hipertensão Portal/etiologia , Hipertensão Portal/fisiopatologia , Modelos Logísticos , Masculino , Pessoa de Meia-Idade , Estudos Retrospectivos , Fatores de Risco , Fatores de Tempo , Resultado do Tratamento , Pressão Venosa , Adulto Jovem
12.
Int Angiol ; 35(1): 90-7, 2016 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-26138237

RESUMO

BACKGROUND: Budd-Chiari Syndrome (BCS) is characterized by obstruction of blood flow in hepatic veins. The aim of the study was to analyze diagnosis, etiology and management of BCS. METHODS: We analyzed 44 patients (32 females, 12 males, the mean age <35y of age) treated with TIPS. Ascites was found in 35 patients as the most frequent symptom. The median of total follow-up was 52 months. Non-covered (bare) or covered stent was inserted to all patients. Diagnosis of myeloproliferative neoplasm (MPN) was based on WHO criteria. Other inherited or acquired thrombophilia were assessed as well. Therapy of BCS was with regard to the etiology. RESULTS: The etiology of BCS was identified in 38 cases. Ph- MPN was found as the most common risk factor (50%, N.=22), especially polycythemia vera. JAK2V617F mutation was detected in the most of 22 MPN cases (82.5%). The second most common etiologic factor was inherited thrombophilia (18%, N.=8). In the non-covered (bare) stent group, a primary patency rates 52.9% in 1 year and 20% in 5 years after TIPS (Portasystemic Shunt, Transjugular Intrahepatic) creation. In the covered stent group the 1-year and 5-year primary patency rates were was 80% and 33.3% respectively. The average 5-year re-intervention rate per patient was 1.65 procedures in the bare stent group and 0.67 in the covered stent group. Re-interventions were more frequent in MPN patients. All patients were anticoagulated with heparin at the beginning, switched to vitamin K antagonist. On top of TIPS, anticoagulant and a vigorous therapy of underlying disorder are necessary. CONCLUSION: BCS is a serious and life-threatening disorder in MPD is a major cause of morbidity and mortality. Therapy requires a multidisciplinary approach. Insertion of TIPS dedicated covered stent is a very effective treatment in cases resistant to conservative approach with lower dysfunction rate and the number of re-interventions.


Assuntos
Síndrome de Budd-Chiari , Derivação Portossistêmica Transjugular Intra-Hepática , Adolescente , Adulto , Idoso , Coagulação Sanguínea , Síndrome de Budd-Chiari/sangue , Síndrome de Budd-Chiari/diagnóstico , Síndrome de Budd-Chiari/etiologia , Síndrome de Budd-Chiari/terapia , Feminino , Humanos , Hepatopatias/complicações , Masculino , Pessoa de Meia-Idade , Adulto Jovem
13.
Artigo em Inglês | MEDLINE | ID: mdl-24781041

RESUMO

BACKGROUND: Transjugular intrahepatic portosystemic shunts (TIPS) have become a widely accepted tool in the treatment of patients with symptomatic portal hypertension. The aim of our study was to assess glycogen phosphorylase BB (GPBB) concentration in relation to echocardiographic and haemodynamic parameters in patients before and after TIPS insertion. METHODS: The study population consisted of 55 patients (38 men and 17 women, age 55.6±8.9 years, range 37-74 years) with liver cirrhosis treated with transjugular portosystemic shunting. GPBB, echocardiographic, and haemodynamic parameters were measured before TIPS insertion and 24 h after the procedure. GPBB concentrations were assessed using the Cardiac Array for Evidence Investigator protein biochip. Correlation between parameters was assessed using the Spearman's coefficient. RESULTS: Serum post-procedural GPBB concentrations were increased in comparison with baseline (5.58 vs. 2.67 µg/L, P<0.001). GPBB concentration after TIPS significantly correlated with baseline systemic vascular resistence (r=0.330; P=0.017) and cardiac index (r=0.313; P=0.025). CONCLUSION: GPBB concentration measurement may be a useful tool for monitoring myocardial ischemia during a TIPS procedure.


Assuntos
Glicogênio Fosforilase/sangue , Hemodinâmica/fisiologia , Hipertensão Portal/enzimologia , Cirrose Hepática/enzimologia , Derivação Portossistêmica Transjugular Intra-Hepática , Adulto , Idoso , Biomarcadores/sangue , Cateterismo Venoso Central , Feminino , Humanos , Hipertensão Portal/etiologia , Hipertensão Portal/cirurgia , Cirrose Hepática/complicações , Cirrose Hepática/fisiopatologia , Masculino , Pessoa de Meia-Idade , Índice de Gravidade de Doença
14.
Ann Hepatol ; 12(3): 464-70, 2013.
Artigo em Inglês | MEDLINE | ID: mdl-23619264

RESUMO

INTRODUCTION: Liver cirrhosis is associated with hyperdynamic circulation which can result in heart failure. Transjugular intrahepatic portosystemic shunt (TIPS) due to increase of cardiac output is a stressful stimulus for cardiovascular system. Therefore, new methods for early detection of heart failure are needed. Transmitral flow is a marker of diastolic dysfunction. AIM: To analyze short- and long-term effect of TIPS procedure on transmitral flow. MATERIAL AND METHODS: 55 patients (38 men and 17 women, 55.6 ± 8.9 years) with liver cirrhosis treated with TIPS were enrolled in the study. Echocardiography was performed before, 24 h, 7, 30 and 180 days after the procedure. During 6 month follow up 22 patients died. Results. Left ventricle end-diastolic diameter was increasing during the follow-up [baseline: 47 (44.7-51.2) mm, day 7: 50 (46.5-51.3) mm, p < 0.05; day 30: 49.5 (46.7-55.2) mm, p < 0.01; 6 months: 52.5 (48.3-55.2) mm, p < 0.01)]. The peak early filling velocity (E) was significantly increasing [before: 75.5 (60.5-87.3) cm/s, 24 h: 88 (74.3-109.7), p < 0.01; day 7: 89 (81.5-105) p < 0.01; 1 month: 94 (82.7-108.5) p < 0.01; 6 month: 91 (80.1-120.2) p < 0.01]. Peak late atrial filling velocity (A) significantly increased within 24 h after the procedure: 85.1 (76.2-99.5) vs. 91.2 (81.5-104.5) cm/s, p < 0.05. The E/A ratio was increasing during the follow up (baseline: 0.88, 24 h after: 0.89, 1 week: 1.0, 30 days: 1.13, 6 month: 1.06 p < 0.01). CONCLUSION: Hemodynamic changes following TIPS procedure can be monitored using echocardiography. Transmitral flow analysis can serve as a useful tool for evaluating of diastolic function in these patients.


Assuntos
Hemodinâmica , Cirrose Hepática/cirurgia , Valva Mitral/fisiopatologia , Derivação Portossistêmica Transjugular Intra-Hepática/efeitos adversos , Adulto , Idoso , Distribuição de Qui-Quadrado , Ecocardiografia Doppler em Cores , Feminino , Insuficiência Cardíaca/etiologia , Insuficiência Cardíaca/fisiopatologia , Humanos , Estimativa de Kaplan-Meier , Cirrose Hepática/complicações , Cirrose Hepática/mortalidade , Cirrose Hepática/fisiopatologia , Masculino , Pessoa de Meia-Idade , Valva Mitral/diagnóstico por imagem , Derivação Portossistêmica Transjugular Intra-Hepática/mortalidade , Valor Preditivo dos Testes , Volume Sistólico , Fatores de Tempo , Função Ventricular Esquerda
15.
Ann Clin Biochem ; 50(Pt 2): 122-6, 2013 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-23431482

RESUMO

BACKGROUND: Transjugular intrahepatic portosystemic shunts (TIPSs) have become a widely accepted tool in the treatment of patients with symptomatic portal hypertension. The aim of our study was to assess the value of cardiac markers before and after TIPS insertion for the prediction of one-year mortality in cirrhotic patients. METHODS: The study population consisted of 55 patients (38 men and 17 women, aged 55.6 ± 8.9 y, range 37-74) with liver cirrhosis treated with transjugular portosystemic shunting. Biochemical markers were measured before and 24 h after TIPS. High-sensitivity cardiac troponin T (hs-cTnT) was tested by high-sensitivity immunoassay for Elecsys analyser (Roche Diagnostics). Concentrations of creatine kinase MB isoenzyme, myoglobin (MYO), glycogenphosphorylase BB isoenzyme (GPBB) and heart type of fatty acid binding protein (FABP) were measured by the Evidence Investigator protein biochip system (Randox Laboratories). RESULTS: In patients before TIPS insertion, hs-cTnT was increased above the cut-off (0.014 µg/L) in 39.2% of patients. Higher hs-cTnT and FABP concentrations were associated with poor survival in patients before TIPS (hs-cTnT: P = 0.018; FABP: P = 0.016). Twenty-four hours after the TIPS procedure, we found a significant elevation in serum GPBB in comparison with preprocedural values (P < 0.001). There was an association between postprocedural concentrations of cardiac markers (MYO, hs-cTnT, FABP) and overall survival. CONCLUSIONS: Measurement of cardiac markers, mainly hs-cTnT and FABP, may be useful for mortality prediction in cirrhotic patients after TIPS. Cardiac markers are better mortality predictors than other risk factors such as age, gender or Child-Pugh score.


Assuntos
Cirrose Hepática/mortalidade , Cirrose Hepática/cirurgia , Miocárdio/metabolismo , Derivação Portossistêmica Transjugular Intra-Hepática , Adulto , Idoso , Biomarcadores/sangue , Biomarcadores/metabolismo , Feminino , Humanos , Cirrose Hepática/sangue , Cirrose Hepática/diagnóstico , Cirrose Hepática/metabolismo , Masculino , Pessoa de Meia-Idade , Análise Multivariada , Prognóstico , Curva ROC
17.
Cas Lek Cesk ; 151(1): 9-12, 2012.
Artigo em Tcheco | MEDLINE | ID: mdl-22442889

RESUMO

This paper reports on a computer-based simulator (GI Mentor II) used for initial training in digestive endoscopy. The highly sophisticated apparatus employs real endoscopes and virtual accessories. The training programme starts with a group of exercises, specially designed to enhance eye-hand coordination. Interactive computerised simulator contains modules for training in gastroscopy, colonoscopy, endoscopic retrograde cholangio-pancreatography and endoscopic control of gastrointestinal bleeding. Virtual library contains 88 authentic cases of diagnostic and therapeutic procedures. Computer-based endoscopy simulators enable trainees to learn and gain technical endoscopic skills before operating on patients. It has the potential to shorten the learning process to competency in digestive endoscopy.


Assuntos
Simulação por Computador , Endoscopia do Sistema Digestório/educação , Humanos , Interface Usuário-Computador
18.
J Vasc Interv Radiol ; 22(1): 55-60, 2011 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-21106389

RESUMO

PURPOSE: To evaluate the effects of secondary deployment of expanded polytetrafluoroethylene (ePTFE)-covered stent grafts in the treatment of dysfunctional transjugular intrahepatic portosystemic shunts (TIPSs) in comparison with other common approaches (conventional angioplasty or implantation of bare metal stents). MATERIALS AND METHODS: A retrospective review of 121 dysfunctional bare metal TIPS presenting between 2000 and 2004 was conducted. The group was divided into four subgroups according to the type of intervention: conventional angioplasty (52 cases; 43%), bare metal stent deployment (35 cases; 28.9%), nondedicated ePTFE-covered stent-graft deployment (15 cases; 12.4%), and dedicated ePTFE-covered stent-graft deployment (19 cases; 15.7%). In all four groups, the primary patency after the specific intervention was calculated and mutually compared. RESULTS: Primary patency rates after 12 and 24 months were 49.7% and 25.3%, respectively, in conventional angioplasty; 74.9% and 64.9%, respectively, with bare metal stents; 75.2% and 64.5%, respectively, with nondedicated ePTFE-covered stent grafts; and 88.1% and 80.8%, respectively, with dedicated ePTFE-covered stent grafts. CONCLUSIONS: In the treatment of dysfunctional TIPS, better patency after the intervention was obtained by deploying dedicated ePTFE-covered stent grafts in comparison with conventional angioplasty, bare metal stents, and nondedicated ePTFE-covered stents.


Assuntos
Angioplastia/instrumentação , Implante de Prótese Vascular/instrumentação , Prótese Vascular , Materiais Revestidos Biocompatíveis , Politetrafluoretileno , Derivação Portossistêmica Transjugular Intra-Hepática/efeitos adversos , Complicações Pós-Operatórias/terapia , Stents , Adolescente , Adulto , Idoso , Distribuição de Qui-Quadrado , Criança , República Tcheca , Feminino , Humanos , Estimativa de Kaplan-Meier , Masculino , Pessoa de Meia-Idade , Complicações Pós-Operatórias/diagnóstico por imagem , Complicações Pós-Operatórias/etiologia , Complicações Pós-Operatórias/fisiopatologia , Desenho de Prótese , Estudos Retrospectivos , Fatores de Tempo , Resultado do Tratamento , Ultrassonografia Doppler , Grau de Desobstrução Vascular , Adulto Jovem
19.
Hepatogastroenterology ; 54(74): 480-4, 2007 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-17523303

RESUMO

BACKGROUND/AIMS: The main problem of transjugular intrahepatic portosystemic shunt is high incidence of hepatic encephalopathy (HE). The aim of our retrospective study was to determine the incidence the risk factors of clinically significant encephalopathy. METHODOLOGY: 430 patients with liver cirrhosis treated by TIPS in Faculty Hospital in Hradec Králové, Czech Republic. RESULTS: Incidence of HE was 35.8%. Patients with HE were older (57.7 +/- 12.1 years) than patients without HE (50 +/- 1.4 years) (p < 0.001). HE developed in 28.6% in patients with ethylic etiology and in 43.9% in patients with non-ethylic etiology (p < 0.001). In diabetic patients HE developed in 51.6% (47 of 111), as compared with 30.5% (44 of 319) in non-diabetic patients (p < 0.01). We did not observe a difference in the incidence of HE in relation to sex, stage of cirrhosis, diameter of the stent nor the drop of the portosystemic gradient. Multivariance analysis revealed however to be statistically significantly conditioned by age and not by the presence of diabetes or etiology of liver cirrhosis. CONCLUSIONS: The risk factors for HE in our patients were older age, other than ethylic etiology of liver cirrhosis and diabetes mellitus. There was no direct relationship between the development of HE and other investigated parameters.


Assuntos
Encefalopatia Hepática/etiologia , Derivação Portossistêmica Transjugular Intra-Hepática/efeitos adversos , Complicações Pós-Operatórias/etiologia , Adulto , Idoso , Estudos Transversais , República Tcheca , Diabetes Mellitus/epidemiologia , Feminino , Encefalopatia Hepática/epidemiologia , Humanos , Incidência , Cirrose Hepática Alcoólica/epidemiologia , Masculino , Pessoa de Meia-Idade , Estudos Retrospectivos , Fatores de Risco
20.
Hepatogastroenterology ; 54(79): 1930-3, 2007.
Artigo em Inglês | MEDLINE | ID: mdl-18251131

RESUMO

BACKGROUND/AIMS: Postparacentesis circulatory dysfunction is the most severe complication of ascites paracentesis. The aim of our study was to compare the standard treatment with the administration of a vasoconstrictor terlipressin. METHODOLOGY: Forty-nine patients treated by paracentesis due to tense ascites were randomized for the treatment with albumin (8g/L of removed ascites) or terlipressin (1 mg every four hours for 48 hours). The blood pressure, heart rate, diuresis, electrocardiograph, standard biochemical and hematological parameters, sodium, potassium and nitrogen urinary excretion, aldosterone and renin activity in the blood plasma were monitored for a period of 72 hours. RESULTS: In any parameter of hemodynamic changes, no statistically significant difference was demonstrated between randomized groups, in particular measurements as well as in the development in the course of the first three days after the intervention. The result suggests similar efficacy of the circulatory dysfunction prevention after the paracentesis in both treatment procedures. In both groups, on the first three days, there was a tendency to improve hemodynamics reflected by the renin-angiotensin-aldosteron system activity. In the terlipressin group, this tendency approached statistically significant levels. CONCLUSIONS: The administration of terlipressin in a dose of 1 mg every fourth hour performed for a period of 48 hours was as effective as intravenous albumin in preventing hemodynamic changes in patients with tense ascites treated by paracentesis. The treatment was well tolerated.


Assuntos
Ascite/terapia , Hemodinâmica/efeitos dos fármacos , Lipressina/análogos & derivados , Paracentese , Vasoconstritores/uso terapêutico , Idoso , Albuminas/administração & dosagem , Aldosterona/sangue , Ascite/fisiopatologia , Pressão Sanguínea/efeitos dos fármacos , Feminino , Frequência Cardíaca/efeitos dos fármacos , Humanos , Lipressina/administração & dosagem , Lipressina/uso terapêutico , Masculino , Pessoa de Meia-Idade , Paracentese/efeitos adversos , Renina/sangue , Terlipressina , Vasoconstritores/administração & dosagem
SELEÇÃO DE REFERÊNCIAS
DETALHE DA PESQUISA
...