RESUMO
BACKGROUND: Morbidly obese patients, despite normal laboratory tests and no clinical evidence of liver disease, present a high prevalence of hepatic histological changes. Liver biopsy is able to provide the diagnosis, staging and assessment of follow-up of hepatic disease, thus helping to define clinical management. There is no agreement on which biopsy technique provides better material for analysis. Considering that subcapsular fibrosis is a common finding, sampling from deeper sites is necessary to achieve an adequate histological assessment. METHODS: A study was done in 264 consecutive morbidly obese patients who underwent open Roux-en-Y gastric bypass between July 2001 and Sept 2004, in whom an intraoperative liver biopsy was taken. The first 107 were wedge biopsies, and the last 157 were needle biopsies. The histological degree of steatosis, presence of fibrosis and adequacy of material from the 2 biopsy techniques were compared. RESULTS: Degree of steatosis in both sampling techniques showed no statistical difference (P=0.132). The presence of fibrosis in wedge biopsies (46.1% fibrosis, n 41) was significantly higher than in needle biopsies (13.7% fibrosis, n 20), P<0.001. As expected, sample size of needle biopsies was smaller than that obtained by the wedge technique (P<0.001), but there was no difference in the quality of material obtained (P=0.95). CONCLUSION: Needle biopsies were as effective as wedge biopsies in assessing the degree of steatosis in morbidly obese patients. More important, the presence of subcapsular fibrosis in needle biopsies was less than in wedge biopsies, suggesting an adequate tissue sample by the less invasive technique.
Assuntos
Biópsia por Agulha/métodos , Derivação Gástrica/métodos , Fígado/patologia , Monitorização Intraoperatória/métodos , Obesidade Mórbida/cirurgia , Adulto , Anastomose em-Y de Roux/métodos , Índice de Massa Corporal , Feminino , Seguimentos , Humanos , Imuno-Histoquímica , Laparotomia/métodos , Masculino , Pessoa de Meia-Idade , Obesidade Mórbida/diagnóstico , Probabilidade , Estudos Retrospectivos , Fatores de Risco , Sensibilidade e Especificidade , Índice de Gravidade de Doença , Resultado do TratamentoRESUMO
Objetivo: O objetivo principal deste artigo é descrever os resultados iniciais do tratamento cirúrgico da obesidade mórbida em um centro multidisciplinar. Métodos: Foram analisados os resultados de 252 pacientes submetidos ao tratamento cirúrgico da obesidade mórbida no período de março de 2000 a março de 2003. As principais variáveis em estudo foram idade, sexo, peso inicial, índice de massa corporal (IMC), presença de doenças associadas e sua melhora no seguimento pós-operatório, qualidade de vida, técnica cirúrgica empregada, presença de complicações e mortalidade. Resultados: A média de idade foi 37,2 anos. O predomínio foi do sexo feminino, com 186 (73,8%) pacientes. A técnica cirúrgica mais utilizada foi a gastroplastia vertical com reconstrução em Y-de Roux com anel restritivo em 250 pacientes. A mortalidade operatória foi de 1 (0,39%) caso. O tempo de seguimento variou de 1 a 36 meses, sendo que 229 (90,8%) pacientes tiveram seus resultados avaliados. A perda de peso média, expressa em percentual de perda do excesso de peso inicial no 2o ano foi de 85,5%. Houve melhora importante na qualidade de vida, e melhora ou resolução das principais doenças associadas. Conclusões: Os resultados encontrados neste estudo demonstram a segurança do procedimento e resultados excelentes em termos de melhora das doenças associadas e dos níveis de qualidade de vida em pacientes submetidos ao tratamento cirúrgico, com baixo índice de mortalidade e complicações operatórias (AU)
Objective: The aim of this study was to evaluate the preliminary results of bariatric surgery in a multi-disciplinary center. Methods: From March 2000 to March 2003, 252 patients underwent operations for morbid obesity and were evaluated prospectively. Study endpoints were surgical complications, operative mortality, percentage of excess body weight loss and impact in quality of life. Results: There were 186 (73.8%) women and 66 (26.2%) male with a mean age of 37.2 years. Roux-en-Y gastic bypass with a silastic ring was used in 250 patients. One (0.39%) operative death ocurred. Follow-up ranged from 1 to 36 months. Mean excess of body weight loss was 85.5% in the second year. Quality of life and comorbidities were significantly improved in the late follow-up. Conclusion: The results of this study show that bariatric operations can be safely performed by a specialized group. Improvement in quality of life and comorbidities, with a low operative mortality are achieved with the surgical treatment of this patients (AU)
Assuntos
Humanos , Masculino , Feminino , Adolescente , Adulto , Pessoa de Meia-Idade , Idoso , Obesidade Mórbida/cirurgia , Cirurgia Bariátrica/estatística & dados numéricos , Obesidade Mórbida/epidemiologia , Brasil/epidemiologia , Estudos Retrospectivos , Resultado do Tratamento , Avaliação de Resultados em Cuidados de SaúdeRESUMO
BACKGROUND: Although non-alcoholic hepatitis usually is asymptomatic and benign, this condition may progress to cirrhosis and hepatic failure. Some findings are similar to alcoholic hepatitis, but there is no history of excessive alcohol consumption. Among the factors associated with non-alcoholic hepatitis, obesity, diabetes and dyslipidemia are the most important. METHODS: 77 consecutive patients undergoing bariatric surgery had their liver biopsy compared to the presence of co-morbidities and BMI. RESULTS: 67 patients (87.1%) had an abnormal liver biopsy, mostly due to steatosis (83.1%), but also steatohepatitis (2.6%) and cirrhosis (1.3%). The degree of liver damage was related to higher BMI scores. Co-morbidities were present in 46.9% of the patients with hepatic steatosis. CONCLUSIONS: The authors suggest that a liver biopsy should be performed in all patients at bariatric surgery, in order to evaluate possible liver damage and to assist postoperative care.