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1.
J Eur Acad Dermatol Venereol ; 22(7): 807-12, 2008 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-18435735

RESUMO

BACKGROUND: As far as we have sought for in Medline and PubMed, not one study until now has evaluated the prevalence of onychomycosis in patients with inflammatory bowel disease (IBD). As there are great evidence of immunological disturbances linked to IBD, a possible relationship of this nail infection in association with those diseases and the possible risk factors might be relevant in IBD patients. METHODS: A case-control prospective study using combined direct smear and cultures for fungus was performed. Sociodemographics, clinical and laboratorial data were recorded at baseline and samples of suspected nails were collected from 141 IBD (61 men and 80 women) and from a group of 100 non-IBD subjects (41 men and 59 women). Direct smear and cultures were performed on each suspected case to exclude other onychodystrophies. RESULTS: The incidence of onychomycosis in IBD patients was highly significant in comparison to non-IBD patients (14.9% vs. 6%, respectively, P < 0.05). The risk factors predisposing IBD patients to onychomycosis were older age (P = 0.02) and leucopoenia in those using azathioprine therapy (P = 0.04) beyond a trend to lymphopenia (P = 0.06). The dermatophytes predominated (76.2%) over yeasts (19%) and moulds (4.8%). CONCLUSION: The prevalence of onychomycosis in IBD patients was expressively high (14.9%) in comparison with non-IBD patients. Considering the sociodemographic factors, any one but two were related to fungal onychomycosis incidence. Therefore, as far as we are concerned, IBD must be included in the high-risk underlying conditions for onychomycosis occurrence.


Assuntos
Dermatoses do Pé/epidemiologia , Dermatoses da Mão/epidemiologia , Doenças Inflamatórias Intestinais/epidemiologia , Onicomicose/epidemiologia , Adulto , Estudos de Casos e Controles , Feminino , Humanos , Imunossupressores/uso terapêutico , Incidência , Doenças Inflamatórias Intestinais/tratamento farmacológico , Doenças Inflamatórias Intestinais/imunologia , Masculino , Pessoa de Meia-Idade , Onicomicose/imunologia , Prevalência , Estudos Prospectivos , Fatores de Risco
3.
Postgrad Med J ; 81(955): 338-40, 2005 May.
Artigo em Inglês | MEDLINE | ID: mdl-15879050

RESUMO

A 48 year old white woman was admitted to the hospital because of several bouts of migratory polyarthritis, weight loss, fever, and abdominal pain over a period of 15 months. She had been taking propylthiouracil 100 mg daily for three years for hyperthyroidism treatment. A test for antineutrophil cytoplasmic autoantibodies (ANCA) was positive with a perinuclear pattern of staining. Antiphospholipid antibodies were also detected. Colonoscopy showed several ulcers on intestinal mucosa and the biopsy specimen showed intense microscopic vasculitis. The patient is well after methylprednisolone pulse therapy and eight months of oral azathioprine. A surveillance colonoscopy showed complete healing of intestinal ulcers. No recurrence of symptoms has occurred and autoantibodies are negative, 10 months after treatment finished. The sequence of events suggests a propylthiouracil induced vasculitis p-ANCA positive and an antiphospholipid syndrome. This is the first report of colonic ulcers diagnosed and successfully treated in such circumstances.


Assuntos
Síndrome Antifosfolipídica/complicações , Antitireóideos/efeitos adversos , Doenças do Colo/induzido quimicamente , Hipertireoidismo/tratamento farmacológico , Propiltiouracila/efeitos adversos , Úlcera/induzido quimicamente , Vasculite/induzido quimicamente , Feminino , Humanos , Pessoa de Meia-Idade
4.
Arq Gastroenterol ; 38(1): 3-8, 2001.
Artigo em Português | MEDLINE | ID: mdl-11586996

RESUMO

BACKGROUND: One of the major problems when evaluating dyspeptic patients at public hospitals is the large interval between the consultation and the endoscopy, leading to the prescription of antisecretory drugs, what can be responsible for false results on examinations. AIM: To evaluate changes in ultrarapid urease test and histopathological examination for Helicobacter pylori by antisecretory drugs. METHODS: In a prospective double-blind study, 50 patients with dyspeptic complaints and endoscopic diagnosis of peptic ulcer, erosive gastritis, esophagitis or duodenitis with a positive urease test, were randomized to a 7-day course of treatment with either omeprazole 20 mg or ranitidine 300 mg a day. Before and after treatment, two biopsy specimens each were obtained from the antrum and corpus and an ultrarapid urease test and a histopathological examination for Helicobacter pylori were performed. RESULTS: There were no significant changes in the results of ultrarapid urease test and histopathological examination for Helicobacter pylori after treatment with ranitidine. With omeprazole, we observed a decrease in positive results in ultrarapid urease test and histopathological examination for Helicobacter pylori in the antrum, but not in the corpus. CONCLUSION: Omeprazole, used for 7 days can lead to negative results in ultrarapid urease test and histopathological examination for Helicobacter pylori in the antrum, and should not be employed in patients before the endoscopy is performed.


Assuntos
Antiulcerosos/uso terapêutico , Ensaios Enzimáticos Clínicos/métodos , Gastroenteropatias/diagnóstico , Infecções por Helicobacter/diagnóstico , Helicobacter pylori/isolamento & purificação , Urease/análise , Adulto , Idoso , Erros de Diagnóstico , Método Duplo-Cego , Feminino , Mucosa Gástrica/efeitos dos fármacos , Mucosa Gástrica/microbiologia , Gastroenteropatias/tratamento farmacológico , Gastroenteropatias/microbiologia , Infecções por Helicobacter/tratamento farmacológico , Infecções por Helicobacter/microbiologia , Helicobacter pylori/efeitos dos fármacos , Antagonistas dos Receptores H2 da Histamina/uso terapêutico , Humanos , Masculino , Pessoa de Meia-Idade , Omeprazol/uso terapêutico , Estudos Prospectivos , Ranitidina/uso terapêutico
7.
Arq Gastroenterol ; 37(2): 93-101, 2000.
Artigo em Português | MEDLINE | ID: mdl-11144021

RESUMO

The main causes of pancreatic inflammation worldwide are biliary lithiasis and alcoholism. However, 10 to 30% of patients have been considered to have "idiopathic" acute pancreatitis. Recently, some studies showed that a significant rate of the so called idiopathic pancreatitis are caused by microlithiasis and/or biliary sludge, identified by the presence of cholesterol monohidrate and/or calcium bilirubinate microcrystals in the biliary sediment. In the present study, the analysis of microcrystals from bile obtained during endoscopic retrograde cholangiopancreatography was done in patients with pancreatitis (idiopathic, biliary or alcoholic--20 in each group). Patients with idiopathic pancreatitis and microcrystals in the bile underwent cholecystectomy whenever possible. Those who refused or were inapt to surgery underwent endoscopic sphincterotomy or received continuous therapy with ursodeoxycholic acid. Patients with idiopathic pancreatitis without biliary crystals did not receive any specific treatment. The prevalence of biliary microcrystals in patients with idiopathic pancreatitis (75%) and biliary pancreatitis (90%) was significantly higher than in those with alcoholic pancreatitis (15%). In the identification of the etiology of biliary pancreatitis, the presence of microcrystals had a sensitivity of 90%, specificity of 85%, positive predictive value of 85.7%, negative predictive value of 89.4% and accuracy of 87.5%. In the patients with recurrent idiopathic pancreatitis, with biliary crystals, there was an statistically significant reduction in the number of pancreatitis episodes after specific treatment. In the follow-up of this group during 23.3 +/- 4.8 months, recurrence of pancreatitis occurred only in patients with "persistent biliary factor" (choledocholithiasis and/or persistence of cholesterol monohidrate). All patients with idiopathic pancreatitis who underwent cholecystectomy had chronic cholecystitis. Moreover, cholelithiasis was present in one case. In the ultrassonographic follow-up of the patients with idiopathic acute pancreatitis with microcrystals in the bile, cholelithiasis was detected in one case. In the subgroup of five patients with idiopathic pancreatitis without biliary microcrystals recurrence occurred in one case. Ultrassonographic study during follow-up did not reveal biliary stones in any of these patients. We concluded that the detection of biliary microcrystals in "idiopathic" pancreatitis suggested an underlying biliary etiology, even if occult. What's more, early specific therapeutic procedure (cholecystectomy, endoscopic sphincterotomy or ursodeoxycholic acid) in patients with recurrent idiopathic pancreatitis with microcrystals in the bile reduced significantly the recurrence during the follow-up. Finally, acute pancreatitis (specially recurrent) should not be called idiopathic before the microscopic analysis of the bile, aiming to detect or exclude the presence of microcrystals.


Assuntos
Cálculos Biliares/complicações , Pancreatite/etiologia , Doença Aguda , Adolescente , Adulto , Idoso , Idoso de 80 Anos ou mais , Bile/química , Estudos de Casos e Controles , Colecistectomia , Feminino , Seguimentos , Cálculos Biliares/química , Cálculos Biliares/terapia , Humanos , Masculino , Pessoa de Meia-Idade , Pancreatite/cirurgia , Valor Preditivo dos Testes , Probabilidade , Estudos Prospectivos , Recidiva
8.
Arq Gastroenterol ; 37(4): 224-6, 2000.
Artigo em Inglês | MEDLINE | ID: mdl-11469224

RESUMO

The authors describe the case of a young Brazilian woman who was treated of ileocolonic Crohn's disease sparing rectum, as confirmed by colonoscopy and histopathological examination. After a 4-year course of sulfasalazine treatment, she presented with skin facial lesions in vespertilio, fever, arthralgias and high titers of anti-ANA and LE cells. A sulfasalazine-induced lupus syndrome was diagnosed, because after sulfasalazine withdrawal and a short course of prednisone, the clinical symptoms disappeared and the laboratory tests returned to normal. Mesalazine 3 g/day was started and the patient remained well for the next 3 years, when she was again admitted with fever, weakness, arthralgias, diplopy, strabismus and hypoaesthesia in both hands and feet, microhematuria, haematic casts, hypocomplementemia and high titers of autoimmune antibodies. A diagnosis of associated systemic lupus erythematosus was made. Although a pulsotherapy with methylprednisolone was started, no improvement was noticed. A cyclophosphamide trial was tried and again no positive results occurred. The patient evolved to severe clinical manifestations of general vasculitis affecting the central and peripheral nervous system and lungs, having a fatal evolution after 2 weeks. Although uncommon, the association of both disease may occur, and the authors call attention to this possibility, making a brief review of literature.


Assuntos
Anti-Inflamatórios não Esteroides/efeitos adversos , Doença de Crohn/tratamento farmacológico , Lúpus Eritematoso Sistêmico/induzido quimicamente , Mesalamina/efeitos adversos , Sulfassalazina/efeitos adversos , Adulto , Anti-Inflamatórios não Esteroides/uso terapêutico , Evolução Fatal , Feminino , Humanos , Mesalamina/uso terapêutico , Sulfassalazina/uso terapêutico
9.
Arq Gastroenterol ; 36(1): 4-9, 1999.
Artigo em Português | MEDLINE | ID: mdl-10511873

RESUMO

Acute pancreatitis is one of the complications associated with severe primary and secondary hypertriglyceridemia. The frequency of hypertriglyceridemia in patients with pancreatitis ranges from 4 to 53%. The elevation in serum triglycerides probably induces the release of free fatty acids, responsible for the pancreatic damage. During a three year study, nine patients with acute pancreatitis due to hypertriglyceridemia were followed up at the University Hospital of Federal University and at the "Hospital Monte Sinai" (Juiz de Fora, MG, Brazil). Suggestive clinical manifestations, especially superior abdominal pain, nausea, vomiting and ileus, were found in all the patients; however, only three showed elevated serum amylase levels. All had triglyceride levels above 1000 mg/dl (11.3 mmol/L). The evolution after clinical treatment was good in eight patients (two needed parenteral nutrition). The only death observed was due to shock and acute respiratory distress, refractory to clinical management. The maintenance treatment aimed at withdrawing the predisposing conditions and reduction of the triglyceride levels prevented recurrence of acute pancreatitis episodes during the 23 months of follow-up.


Assuntos
Hipertrigliceridemia/complicações , Pancreatite/etiologia , Doença Aguda , Adulto , Feminino , Humanos , Hipertrigliceridemia/sangue , Hipertrigliceridemia/fisiopatologia , Masculino , Pessoa de Meia-Idade , Pancreatite/diagnóstico , Pancreatite/fisiopatologia
10.
Arq Gastroenterol ; 35(4): 240-6, 1998.
Artigo em Português | MEDLINE | ID: mdl-10347705

RESUMO

The authors present their experience with the follow-up of 60 cases of Crohn's disease, from 1970 until 1998, in the city of Juiz de Fora, Minas Gerais state, a county of the Southeast region of Brazil, and analyse the epidemiology of disease to improve the understanding of its behaviour in the country. The incidence rates increased greatly in the last 28 years. In the group studied 53.3% were men, 90% white, 71.7% non-smokers, 93.3% non-alcoholics, and all, but two, lived in urban area; 58.3% had their symptoms started at the age between 11 and 30 years and 30% were in the second decade of life. Relatives with Crohn's disease were seen in 6.7%, and the most common symptoms observed at the beginning of disease were: abdominal pain (78.3%), diarrhea (68.3%), weight loss (26.7%) and small bowel obstruction or localized peritonitis (15%). The ileum was involved in 90% and five cases (8.3%) with lesions restricted to the colon were observed. Two patients died because they were non-responders despite any therapy schedule and had sepsis after surgery. The effect of several substances used in the treatment is described, being prednisone the most effective in controlling the active disease. Other drugs as aminosalicilates, metronidazol and immunomodulators are also considered to avoid the side-effects of long-term use of steroides. Comments are made about the clinical evolution, surgeries and response to many treatments adopted. The authors conclude that Crohn's disease is increasing its incidence rate in Brazil and probably in South America formerly considered as a region of low frequency.


Assuntos
Doença de Crohn/epidemiologia , Adulto , Idade de Início , Brasil , Doença de Crohn/complicações , Doença de Crohn/fisiopatologia , Feminino , Humanos , Incidência , Masculino
11.
Mt Sinai J Med ; 64(2): 125-9, 1997 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-9057470

RESUMO

BACKGROUND: Chronic ethanol abuse is a common cause of chronic hepatic and pancreatic diseases in Western countries. The objectives of the present study were to determine the occurrence and the clinical evolution during follow-up of asymptomatic hepatic disease in Brazilian alcoholics with chronic pancreatitis whose most important beverage is cachaça, a beverage distilled from sugar cane. PATIENTS-METHODS: Thirty-two patients, mean age 35 years, with a mean daily ethanol intake of 204 g during a mean period of 16 years, presenting with chronic pancreatitis without clinical and laboratory features of hepatocellular failure, were followed up during 34 +/- 8 months after undergoing a percutaneous biopsy of the liver and histological examination. RESULTS: Hepatic injury was observed in 50% of the cases. During the follow-up, only one patient showed clinical or biochemical evidence of hepatic deterioration or complication. CONCLUSIONS: In subjects with a chronic intake of cachaça, the association between asymptomatic alcoholic hepatopathy and chronic alcoholic pancreatitis is frequent (50%). In chronic alcoholic pancreatitis, associated hepatic disease may remain asymptomatic in the majority of the cases and has little influence on the outcome of the patients, at least in a short-term follow-up.


Assuntos
Hepatopatias Alcoólicas/complicações , Pancreatite Alcoólica/complicações , Adulto , Brasil/epidemiologia , Doença Crônica , Seguimentos , Humanos , Hepatopatias Alcoólicas/diagnóstico , Hepatopatias Alcoólicas/epidemiologia , Masculino , Pessoa de Meia-Idade , Avaliação de Resultados em Cuidados de Saúde , Pancreatite Alcoólica/diagnóstico , Pancreatite Alcoólica/epidemiologia , Fatores de Tempo
12.
Arq Gastroenterol ; 34(1): 7-12, 1997.
Artigo em Português | MEDLINE | ID: mdl-9458954

RESUMO

The authors describe their experience, in a prospective survey, with the prevalence rates of intestinal parasites in patients with hepatic cirrhosis admitted to the Gastroenterology Unit of University Hospital of Federal University in Juiz de Fora, Brazil, whose fresh stools were examined by Hoffman-Pons-Janner, Baermann-Moraes and Willis methods. They compare the results of stool exams with two control groups and look for a relation with cirrhosis' etiology. A higher prevalence of some parasites was observed in cirrhosis than in people with other digestive diseases (group I). mainly for the Strongyloides stercoralis, found in 40.2%, chiefly in alcoholic cirrhosis. Oddly no one of the group I admitted in the same period had strongyloidiasis. Another group including all the people who had stool samples examined in the same period at the hospital had 1.91% of that helmintic infection (group II). A comparison is also made with the prevalence in schoolchildren between the ages of 7 and 14 studies eight years before (13.16%). Other parasites were also observed in different incidence between those with cirrhosis and the other groups and the results are presented. They conclude that hepatic cirrhosis must be included in the list of conditions which increases the risk of Strongyloides stercoralis infection.


PIP: In a prospective study conducted between July 1995 and June 1996 the prevalence of intestinal parasites is described in 35 (32 male, 3 female) patients with hepatic cirrhosis, aged 13-77 years, who had been admitted to the gastroenterology unit of the Federal University in Juiz de Fora, Brazil. The causes of cirrhosis were: alcohol (19 cases), hepatitis B virus (HBV) (3 cases), hepatitis C virus (HCV) (5 cases), HBV and HCV (2 cases), cryptogenetics (3 cases), Wilson's disease (1 case), biliary cirrhosis (1 case), and Gaucher's disease (1 case). Another 45 patients who were hospitalized during this period served as controls (Group I). Group II was comprised of 1411 persons who underwent parasitological tests during December 1995 and May 1996. Comparison was also made with 7371 tests performed in children aged 7-14 years who had been studied in 1988. Stools were examined by the Hoffman-Pons-Janner, Baermann-Moraes, and Willis methods. The results of stool exams were compared with those of the two control groups. A higher prevalence of some parasites was observed in cirrhosis patients than in patients with other digestive diseases (Group I). Of the 35 cirrhosis patients, 19 presented with positive parasite tests. Strongyloides stercoralis was found in 40.2%, chiefly in alcoholic cirrhosis patients, which was significant when compared to the other two control groups, but not significant when compared to the patients with nonalcoholic cirrhosis (4 cases of strongyloidiasis out of 16 patients). None of the 45 patients in Group I had strongyloidiasis. Group II (including all the people who had stool samples examined during the same period in the hospital) had a 1.91% rate of helminthic infection. A rate of 13.16% was found in the children's group.


Assuntos
Enteropatias Parasitárias/epidemiologia , Cirrose Hepática/parasitologia , Adolescente , Adulto , Idoso , Criança , Feminino , Humanos , Enteropatias Parasitárias/complicações , Cirrose Hepática/complicações , Masculino , Pessoa de Meia-Idade , Prevalência , Estudos Prospectivos , Estrongiloidíase/epidemiologia
13.
Arq Gastroenterol ; 34(4): 212-6, 1997.
Artigo em Português | MEDLINE | ID: mdl-9629314

RESUMO

The authors present the results of a prospective study on percutaneous needle biopsy of the liver conducted at the Hepatology Outpatients' Ward of the Gastroenterology Unit of the University Hospital -" Universidade Federal de Juiz de Fora", MG, Brazil. In 16 months 61 biopsies were made in patients with chronic liver disease according to the technique described by menghini. The inclusion criteria were established by The Patient Care Committee of The American Gastroenterological Association. Abdominal ultrasound was done before and after the procedure. The patients stayed six hours under control (blood pressure and pulse rate) in the hospital. After 24 hours other clinical, laboratorial and ultrasonic control were performed. The main complication was local pain or in the right shoulder (32 patients--52.5%). Abdominal ultrasound after 24 hours revealed only one hematoma of the abdominal wall (1.8%). This study shows that the outpatient needle liver biopsy is a safe procedure with low complication rate when performed in a judicious way, by specialized personnel and under strict clinical control.


Assuntos
Assistência Ambulatorial , Biópsia por Agulha , Hepatopatias/patologia , Adolescente , Adulto , Biópsia por Agulha/efeitos adversos , Biópsia por Agulha/economia , Doença Crônica , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Estudos Prospectivos
15.
Arq Gastroenterol ; 33(4): 232-43, 1996.
Artigo em Português | MEDLINE | ID: mdl-9302339

RESUMO

Review of the literature concerning the pathogenesis and the clinical significance of microcrystals and biliary sludge. In addition, the advantages and limitations of the available methodology of identification of these microscopic precipitates and the clinical conditions in which the investigation of the bile composition, with respect to the presence of cholesterol and calcium bilirubinate microcrystals, are discussed. In conclusion, algorithms for treatment of bileopancreatic diseases caused by microcrystals and/or biliary sludge are proposed.


Assuntos
Bile/química , Colelitíase , Colesterol/análise , Cálculos Biliares , Cristalização , Humanos , Pancreatite
17.
Arq Gastroenterol ; 33(3): 167-72, 1996.
Artigo em Português | MEDLINE | ID: mdl-9201330

RESUMO

Glucagonoma is a neuroendocrine tumor of pancreatic alpha cells manifested by necrolytic migratory erythema, hyperglucagonemia, glucose intolerance, weight loss, anemia and hypopaminoacidemia. We report a case of glucagonoma in a 38 years-old patient diagnosed by the presence of a pancreatic tumor, liver metastasis, weight loss, glucose intolerance, necrolytic migratory erythema, hyperglucagonemia (1400 pg/ml; normal < 200 pg/ml) and histologic demonstration of glucagon and neurospecific enolase by immunocytochemical reaction. Actual therapeutic of glucagonoma includes surgery, chemotherapy, somatostatin or octreotide for control of the symptoms, and more recently alpha-interferon was suggested.


Assuntos
Glucagonoma/patologia , Neoplasias Pancreáticas/patologia , Adulto , Glucagonoma/secundário , Humanos , Masculino
18.
Arq Gastroenterol ; 32(4): 178-85, 1995.
Artigo em Português | MEDLINE | ID: mdl-8734854

RESUMO

The incidence of acute pancreatitis is increasing. Necrosis occurs in 10 to 20% of the cases, and is associated with great morbidity and mortality. The diagnosis of pancreatic necrosis can be suspected clinically and biochemically, and confirmed with imaging methods. A computerized tomography with contrast injection (dynamic pancreatography) is the best diagnostic method. Treatment of pancreatic necrosis is primarily conservative. Prophylactic antibiotic therapy is reserved for the biliary pancreatitis and for severe cases. When pancreatic infection is suspected, computerized tomography or ultrasonic exam guided percutaneous aspirative punction must be performed, with Gram stain and culture of the material aspirated. If bacterial infection is present, adequate antibiotic therapy with good penetration in necrotic tissue must be provided associated with surgical necrosectomy and local washing or open drainage.


Assuntos
Pâncreas/patologia , APACHE , Doença Aguda , Humanos , Necrose , Pancreatite/complicações , Pancreatite/diagnóstico , Prognóstico , Tomografia Computadorizada por Raios X
19.
Arq Gastroenterol ; 32(3): 110-5, 1995.
Artigo em Português | MEDLINE | ID: mdl-8728785

RESUMO

Endoscopy therapy of pancreatic pseudocyst has been described as an efficient method. We report six cases of pancreatic pseudocyst treated by pancreatic stenting (three cases), cystogastrostomy (three cases) and cystoduodenostomy (one case). Rapid symptomatic improvement and pseudocyst regression were noted in all cases, except one. Such patient needed pancreatic stenting even after cystogastrostomy due to main pancreatic duct stenosis. There were three complications: hemorrhage (one case) and pseudocyst infection (two cases), and all were treated clinically. Two patients had pseudocyst infection previous to endoscopic manipulation, and they were treated only with antibiotics and endoscopic drainage, without surgery (treatment suggested by most of the authors). We concluded that endoscopic therapy of pancreatic pseudocyst is efficient and safe, being responsible for rapid relief of symptoms in most of patients.


Assuntos
Endoscopia , Pseudocisto Pancreático/cirurgia , Adulto , Seguimentos , Humanos , Masculino , Pessoa de Meia-Idade , Pseudocisto Pancreático/diagnóstico , Pseudocisto Pancreático/diagnóstico por imagem , Complicações Pós-Operatórias , Ultrassonografia
20.
Arq Gastroenterol ; 32(3): 131-9, 1995.
Artigo em Português | MEDLINE | ID: mdl-8728788

RESUMO

The effects of ethanol upon the gastrointestinal tract (mouth, pharynx, esophagus, stomach, duodenum, Oddi's sphincter, small bowel, colon and rectum) were reviewed. Several studies showed that the incidence of cancer in the mouth and pharynx is increased in alcoholics as a consequence of ethanol effects and probably those of other compounds found in liquors. The gastroesophageal reflux disease may be induced by alcohol since it reduces the pressure in the lower and the upper esophageal sphincter, as well as the extent of primary peristalsis. Several studies showed a strong correlation between esophageal cancer and alcohol abuse. The risk for developing this kind of tumour is significantly increased when alcohol abuse and smoking coexist. Alcoholism predisposes patients to Mallory-Weiss syndrome as well as to bleeding of esophageal varices Ethanol may affect gastric secretion, motility, and permeability. Some drugs acting upon the gastric alcohol-dehydrogenase are able to affect gastric absorption of ethanol. Eradication of Helicobacter pylori increases the activity of alcohol-dehydrogenase in the pyloric antrum. The effects of alcohol upon the gastric mucosa include caustic damage, retrograde diffusion of H+, and cytoprotection. This agent may cause an acute gastritis but it is probably not involved in chronic gastritis. Whether alcohol is a risk factor for ulcer or not is unknown. Some studies found an increased incidence of gastric cancer associated with consumption of beer, wine and vodka. Some authors reported a decreased pressure in Oddi's sphincter while others found it increased in association with the consumption of ethanol. The acute and the chronic consumption of alcohol may affect the structure of small bowel as well as the absorption of nutrients. Several studies reported a significant correlation between colorectal cancer and the chronic consumption of ethanol.


Assuntos
Alcoolismo/complicações , Sistema Digestório/fisiopatologia , Etanol/efeitos adversos , Alcoolismo/metabolismo , Sistema Digestório/metabolismo , Doenças do Esôfago/etiologia , Feminino , Gastroenteropatias/etiologia , Humanos , Masculino
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