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2.
J. coloproctol. (Rio J., Impr.) ; 35(1): 35-41, Jan-Mar/2015. tab
Article in English | LILACS | ID: lil-745954

ABSTRACT

PURPOSE: To assess the feasibility and effectiveness of the fecal occult blood test (FOBT) and flexible rectosigmoidoscopy (RSS), as tools used in the CRC screening, in asymptomatic patients, from 50 years of age. METHODS: The study is transversal and presents a sample of 102 individuals. The FOBT used was the guaiaco, FECA-CULT(r) method, held at a single time, in feces collected from a complete evacuation. Individuals, who presented the positive FOBT, were sent to colonoscopy complement, although this is not primary variable examined in this study. All subjects underwent to flexible RSS, after bowel preparation, using a solution of sodium phosphate monobasic monohydrate and dibasic sodium phosphate heptahydrate. RESULTS: Individuals showed minimum age of 50 years and maximum 82 years, 61.6 years average and standard deviation +8.1. Of the 102 individuals, 42 (41%) belong to the males, whereas 60 (58.8%) female. The FOBT presented 10 positive cases (9.8%) (IC 95%: 4.8-17.3%) and 92 negative cases (90.2%) (IC 95%; 82.7-95.2%). The FOBT was effective at 2.9% and presented false-positive result in 6.9%. The result of the FBOT association with flexible RSS showed that 70% of neoplastic polyps showed no bleeding. Its sensitivity was 30% (IC 95%: 0.00-63.40%), the value of the relative risk was 3.94 (IC 95%: 1.20-12.89) and 5.20 valued odds ratio (IC 95%: -23.15 to 1.21). The specificity was 92.40% (IC 95%: 86.43-98.35%). The flexible RSS detected 15 polyps, among which, after histopathological study, 10 were neoplastic, being 09 adenomatous polyps (60%) and 01 malignity (6.7%) (IC 95%: 0.20-31.90%) and 05 non-neoplastic polyps (33.3%), and 03 inflammatory polyps (20%) (IC 95%: 4.3-48.1%) and 02 hyperplastic polyps (13.3%) (IC 95%: 1.7-40.5%). Neoplastic polyps were present in 60% of individuals over 60 years of age. Among the adenomatous polyps, the adenomatous polyp tubular prevalence is 53.33%. Among the 102 individuals, flexible RSS detected 09 adenomatous polyps (8.82%) and 01 (0.98%) malignity polyp. CONCLUSION: The tools FOBT and flexible RSS presented feasibility and, when associated demonstrated statistical significance in detecting polyps in general and important clinical significance on the detection of adenomatous polyps and colorectal cancer. (AU)


OBJETIVO: Avaliar a viabilidade e eficácia do teste de sangue oculto nas fezes (TSOF) e retossigmoidoscopia (RSS) flexível, como instrumentos utilizados na triagem do CCR, em pacientes assintomáticos a partir dos 50 anos. MÉTODOS: Esse é um estudo transversal e apresenta uma amostra de 102 indivíduos. O TSOF utilizado foi o método do guaiaco FECA-CULT(r), realizado em uma única vez, em fezes coletadas de uma evacuação completa. Indivíduos com TSOF positivo foram encaminhados para o complemento de colonoscopia, embora essa não seja a variável primária examinada neste estudo. Todos os pacientes foram submetidos a uma RSS flexível, após a preparação do intestino com o uso de uma solução de fosfato de sódio monobásico mono-hidratado e de fosfato de sódio dibásico hepta-hidratado. RESULTADOS: Os participantes tinham idade mínima de 50 anos e máxima de 82 anos (média ± desvio padrão, 61,6 ± 8,1 anos). Dos 102 pacientes, 42 (41%) eram homens, enquanto 60 (58,8%) eram mulheres. O TSOF revelou 10 casos positivos (9,8%) (IC 95%: 4,8-17,3%) e 92 casos negativos (90,2%) (IC 95%; 82,7-95,2%). O TSOF foi eficaz em 2,9% e apresentou resultado falso-positivo em 6,9%. O resultado da associação de TSOF com RSS flexível demonstrou que 70% dos pólipos neoplásicos não exibiam qualquer sangramento. Sua sensibilidade foi de 30% (IC 95%: 0,00-63,40%), com risco relativo de 3,94 (IC 95%: 1,20-12,89) e razão de sensibilidade (odds ratio) de 5,20 (IC 95%: 1,21-23,15). A especificidade da associação foi de 92,40% (IC 95%: 86,43-98,35%). A RSS flexível detectou 15 pólipos, tendo sido contatado que, depois do estudo histopatológico, 10 eram neoplásicos: 9 pólipos adenomatosos (60%) e 1 malignidade (6,7%) (IC 95%: 0,20-31,90%). Além disso, a RSS flexível detectou 5 pólipos não neoplásicos (33,3%): 3 pólipos inflamatórios (20%) (IC 95%: 4,3-48,1%) e 2 pólipos hiperplásicos (13,3%) (IC 95%: 1,7% -40,5%). Os pólipos neoplásicos estavam presentes em 60% dos pacientes com mais de 60 anos de idade. Entre os pólipos adenomatosos, houve prevalência tubular de pólipos adenomatosos em 53,33%. Entre os 102 indivíduos, a RSS flexível detectou 9 pólipos adenomatosos (8,82%) e 1 (0,98%) pólipo maligno. CONCLUSÃO: Foi constatada a viabilidade dos instrumentos TSOF e RSS flexível; quando associados, demonstraram significância estatística na detecção de pólipos em geral e importante significado clínico para a detecção de pólipos adenomatosos e do câncer colorretal. (AU)


Subject(s)
Humans , Male , Female , Middle Aged , Aged , Aged, 80 and over , Rectal Neoplasms/prevention & control , Early Detection of Cancer/methods , Occult Blood , Carrier State , Proctoscopy , Sigmoidoscopy , Adenomatous Polyps/diagnosis
4.
Medicina (B.Aires) ; Medicina (B.Aires);73(6): 567-572, Dec. 2013. tab
Article in Spanish | LILACS | ID: lil-708581

ABSTRACT

El cáncer colorrectal representa una de las primeras causas de muerte por cáncer en todo el mundo y también en la Argentina. En los últimos años la pesquisa de cáncer de colon ha cobrado gran importancia y se ha postulado a la colonoscopia como el patrón de oro. En esta revisión resumimos las evidencias de este método poniendolo en contexto con las complicaciones y desventajas.


Colorectal cancer is one of the leading causes of cancer death worldwide and also in Argentina. In the past few years colorectal cancer screening has become more popular and colonoscopy has been postulated as the gold standard. In this review we analyzed the evidence supporting this method in contrast with its complications and disadvantages.


Subject(s)
Humans , Adenomatous Polyps/diagnosis , Colonoscopy , Colorectal Neoplasms/diagnosis , Adenomatous Polyps/epidemiology , Argentina/epidemiology , Colonoscopy/adverse effects , Colonoscopy/standards , Colorectal Neoplasms/epidemiology , Colorectal Neoplasms/prevention & control , Disease Progression , Early Detection of Cancer , Risk Factors , Sigmoidoscopy
5.
Lima; s.n; 2013. 59 p. tab, ilus.
Thesis in Spanish | LILACS, LIPECS | ID: lil-713944

ABSTRACT

Objetivo: Determinar el rol e importancia de la calidad del médico endocopista en la detección de pólipos adenomatosos durante la colonoscopía en el Hospital Nacional PNP Luis N. Sáenz (año 2011). Material y Métodos: Estudio de diseño retrospectivo y metodología observacional, analítico y descriptivo en pacientes con indicación de colonoscopía, en el Servicio de Gastroenterología del Hospital Nacional PNP Luis N. Sáenz (año 2011). Resultados: En 610 colonoscopias la edad promedio de los pacientes fue de 62.4+/-7.1 años, con mayor frecuencia de edad =>de 50 años (66.70 por ciento) y predominancia femenina (59 por ciento). La indicación más frecuente para colonoscopía fue: despistaje (47.55 por ciento), estreñimiento (18.70 por ciento), dolor abdominal (10.15 por ciento). El rango para la detección de al menos un pólipo fue de 13.45 a 19.65 por ciento en los endoscopistas participantes. En los pacientes =>50 años el rango fue de 21.15-38.45 por ciento (p=0.001). Existió diferencia significativa (p=0.04) entre los endoscopistas con mayor y menor tasa de detección de pólipos adenomas. La edad avanzada y el género masculino fueron poderes predictores de adenomas. La indicación para la colonoscopía no se encontró diferencias significativas entre las categorías (p=0.290). Conclusiones: La calidad en la técnica de exploración del colón por parte del endoscopista en nuestro hospital, puede ser más importante que conocidos predictores de adenomas, como edad, género e indicación para el examen. Nuestros resultados apoyan el papel principal de esta medida, en la mejora continua de la calidad de detección del cáncer colorrectal.


Objective: To determine the role and importance of physician quality endocospist in detecting adenomatous polyps during colonoscopy in the National Hospital PNP Luis N. Saenz (2011). Material and Methods: Study design and methodology retrospective observational, analytical and descriptive in patients requiring colonoscopy in the Gastroenterology Service of the National Hospital PNP Luis N. Saenz (2011). Results: In 610 colonoscopies average age of patients was 62.4+/-7.1 years, most often age =>50 years (66.70 per cent) and female predominance (59 per cent). The most common Indication for colonoscopy was: screening (47.55 per cent), constipation (18.70 per cent), and abdominal pain (10.15 per cent). The range for the detection of at least one polyp was from 13.45 to 19.65 per cent in the endoscopist participants. In patients =>50 years, the range was 21.15-38.45 per cent (p=0.001). Significant difference (p=0.04) between the highest and lowest endoscopists polyp detection rate adenomas. Older age and male gender were predictors of adenomas powers. The indication for colonoscopy was not found significant differences between categories (p=0.290). Conclusions: The quality of the scanning technique of the colon by the endoscopist at our hospital may be more important than adenomas known predictors such as age, gender and indication for the examination. Our results support the role of this measure in the continuous improvement of the quality of colorectal cancer screening.


Subject(s)
Humans , Male , Female , Adult , Middle Aged , Colonoscopy , Professional Competence , Endoscopy , Adenomatous Polyps/diagnosis , Observational Study , Retrospective Studies , Cross-Sectional Studies
6.
Rev. cuba. med ; 51(3): 218-227, jul.-set. 2012.
Article in Spanish | LILACS | ID: lil-649860

ABSTRACT

Introducción: las lesiones elevadas diminutas del colon son de gran interés por su frecuente aparición en los procederes endoscópicos y su asociación con lesiones adenomatosas. Objetivo: caracterizar clínica, endoscópica e histológicamente este tipo de lesiones. Métodos: se hizo un estudio observacional, descriptivo y transversal en el Instituto de Gastroenterología desde enero 2007 a junio 2009. La muestra quedó constituida por 249 lesiones elevadas y diminutas del colon que se encontraron en 193 pacientes de 18 años y más, a los que se les realizó colonoscopia y se les tomó muestra de las lesiones para biopsia. Resultados: Predominó la edad entre los 50 y 69 años, el sexo femenino y el color de la piel blanca. La mayoría de los pacientes se mantenían asintomáticos y la enfermedad del colon que más se asoció fueron los pólipos. La localización más frecuente fue en sigmoides y recto, con un predominio de las lesiones con tamaño £ 2 mm y entre 4 y 5 mm. La mayoría de las lesiones fueron no neoplásicas y todos los adenomas que se encontraron fueron tubulares, la displasia de bajo grado resultó la más frecuentemente observada


Introduction: raised diminutive colon lesions are of great interest due to their frequent appearance in endoscopic procedures and their association with adenomatous lesions. Objective: carry out a clinical, endoscopic and histological characterization of this type of lesions. Methods: an observational descriptive cross-sectional study was conducted at the Institute of Gastroenterology from January 2007 to June 2009. The sample consisted of 249 raised diminutive colon lesions found in 193 patients aged 18 and over. These patients underwent colonoscopy and biopsies were taken from their lesions. Results: there was a prevalence of the 50-69 age group, female sex and white skin color. Most patients were asymptomatic and the colon disease most commonly associated was polyps. The most common locations were the sigmoid colon and the rectum, with a prevalence of £ 2 mm and > 4-5 mm lesions. Most lesions were non-neoplastic and all adenomas were tubular. Low-grade dysplasia was the most common


Subject(s)
Humans , Male , Female , Colonoscopy/methods , Colonic Diseases/diagnosis , Adenomatous Polyps/diagnosis , Epidemiology, Descriptive , Cross-Sectional Studies/methods , Observational Studies as Topic
7.
Arq. gastroenterol ; Arq. gastroenterol;49(1): 35-40, Jan.-Mar. 2012. ilus
Article in English | LILACS | ID: lil-622559

ABSTRACT

CONTEXT: The appearance of adenomas and their progression to adenocarcinomas is the result of an accumulation of genetic changes in cells of the intestinal mucosa inherited or acquired during life. Several proteins have been studied in relation to the development and progression of colorectal cancer, including tumor protein p53 (p53) and antigen identified by monoclonal antibody Ki-67 (Ki-67). OBJECTIVE: To evaluate the expression of p53 and Ki-67 in colorectal adenomas and correlate the observed levels with clinical and pathologic findings. METHOD: The sample consisted of 50 adenomatous polyps from patients undergoing colonoscopy. After performing polypectomy, polyps were preserved in a formalin solution with 10% (vol./vol.) phosphate buffer, submitted for routine preparation of sections and slides and stained with hematoxylin and eosin. For each adenoma we then performed immunohistochemistry to detect specific p53 and Ki-67 proteins using a streptavidin-biotin-peroxidase enzyme immunoassay. RESULTS: p53 was detected in 18% of the adenomas. The average Ki-67 protein index (i.Ki-67) was 0.49. A statistically significant difference was observed in p53 (P = 0.0003) and Ki-67 (P = 0.02) expression between adenomas with low- and high-grade dysplasia, particularly for p53. The expression of Ki-67 was greater in rectal adenomas than in colic adenomas (P = 0.02). No relationship was found between the expression of the two proteins in the sample. CONCLUSION: The p53 protein is expressed in a proportion of adenomas, while the Ki-67 protein was expressed in all adenomas. The expression of p53 was higher in adenomas with high-grade dysplasia. The expression of Ki-67 was higher in rectal adenomas and in adenomas with high-grade dysplasia.


CONTEXTO: O aparecimento de adenomas intestinais e sua progressão para adenocarcinoma é o resultado do acúmulo de mutações genéticas da mucosa intestinal, herdadas ou adquiridas durante a vida. Dessa forma, várias proteínas têm sido estudadas em relação ao desenvolvimento e progressão do câncer colorretal, incluindo as proteínas p53 e Ki-67. OBJETIVO: Avaliar a expressão das proteínas p53 e Ki-67 em adenomas colorretais, suas relações com características clinicopatológicas e avaliar a relação entre as duas proteínas. MÉTODO: A amostra consistiu de 50 pólipos adenomatosos encontrados em pacientes submetidos a exames colonoscópicos. Após a realização de polipectomia, os pólipos eram conservados em solução tamponada de formalina a 10% e submetidos a rotina de preparo de cortes e lâminas e coloração pela hematoxilina-eosina para confirmação da natureza adenomatosa. Realizou-se imunoistoquímica específica para as proteínas p53 e Ki-67 pelo método imunoenzimático da streptoavidina-biotina-peroxidase para cada adenoma. RESULTADOS: A proteína p53 foi positiva em 18% dos adenomas e a proteína Ki-67, expresso como índice (i.Ki-67), obteve média de 0,49. Houve diferença estatisticamente significante na expressão de p53 (P = 0,0003) e Ki-67(P = 0,02) entre os adenomas com alto e baixo grau de displasia, sendo maior no primeiro grupo. Encontrou-se, ainda maior expressão da proteína Ki-67 nos adenomas retais em relação aos de localização cólica (P = 0,02). Não houve relação entre a expressão das duas proteínas, na amostra. CONCLUSÃO: A proteína p53 é expressa em parte dos adenomas enquanto Ki-67 é expressa na sua totalidade. A expressão de p53 foi maior nos adenomas com alto grau de displasia. A expressão de Ki-67 foi maior nos adenomas retais e com alto grau de displasia.


Subject(s)
Adult , Aged , Aged, 80 and over , Female , Humans , Male , Middle Aged , Adenomatous Polyps/metabolism , Colorectal Neoplasms/metabolism , /analysis , /analysis , Adenomatous Polyps/diagnosis , Colonoscopy , Colorectal Neoplasms/diagnosis , Immunohistochemistry
8.
Rev. méd. Chile ; 140(3): 281-286, mar. 2012. ilus, tab
Article in Spanish | LILACS | ID: lil-627639

ABSTRACT

Background: Mortality from colorectal cancer (CCR) in Chile has nearly doubled over the past 15 years. International studies have shown that CCR screening programs based on fecal occult blood test (FOBT) reduce CCR mortality. Aim: To analyze the results from a CCR screening model in people over 50 years. Material and Methods: Between 2007 and 2009, a prospective multicenter study was performed in seven major Chilean cities. FOBT using an immunological method, was measured in asymptomatic subjects aged 50 years or more, without risk factors. In patients with a positive FOBT, with symptoms or with family risk factors, a colonoscopy was indicated. Results: A total of 6348 subjects were assessed, FOBT was performed in 4938 of them, with a compliance of 77%. The result was positive in 9.6%. A total of 2359 colonoscopies were ordered, with an overall compliance of 50.1%. Of the 1184 colonoscopies performed, adenomas and high risk adenomas were found in 304 (26%) and 75 (6%) patients, respectively. Thirteen patients were diagnosed with stage I and IICCR. Three of these lesions were excised endoscopically and 10 surgically. The detection rate of polyps, high risk adenomas and cancer was 75, 12 and 2 per 1000 screened individuals, respectively. Conclusions: This program allowed the early detection of an important number of high risk colon lesions, and all patients with CCR were diagnosed at early stages.


Subject(s)
Humans , Middle Aged , Adenomatous Polyps/diagnosis , Colorectal Neoplasms/diagnosis , Early Detection of Cancer/methods , Mass Screening/methods , Occult Blood , Adenomatous Polyps/mortality , Age Factors , Chile/epidemiology , Colonoscopy , Colorectal Neoplasms/mortality , Patient Compliance , Program Evaluation , Prospective Studies , Risk Factors , Urban Population
10.
Arq. gastroenterol ; Arq. gastroenterol;44(1): 14-17, jan.-mar. 2007. tab, ilus
Article in English | LILACS | ID: lil-455954

ABSTRACT

BACKGROUND: Gastric polyps are small gastric lesions, asymptomatic in most cases and are generally discovered inadvertently during upper digestive endoscopy. AIM: To retrospectively review the characteristics and frequency of gastric polyps, derived from the gastric mucosal epithelium in a large series of endoscopies. METHODS: One hundred and fifty three patients in a series of 26,000 consecutive upper digestive endoscopies done over a 5-year period, being that each patient had only one examination were analyzed and their histological and Yamada classification, as well as their location, size, histopathological findings and treatment studied. All patients had at least one gastric polyp, as confirmed by histological examination. RESULTS: The polyps were classified as hyperplastic, adenomatous and fundic gland polyps. The most of them measure less than 1 cm (hyperplastic polyps - 60,5 percent; adenomatous polyps - 73,6 percent; fundic gland polyps - 72 percent). Hyperplastic polyps were the most frequent and accounted for 71.3 percent of the cases, whereas fundic gland polyps accounted for 16.3 percent and adenomatous polyps for 12.4 percent. Hyperplastic and adenomatous polyps were primarily single, whereas fundic gland polyps tended to be multiple. A carcinoma was detected in one hyperplastic polyp (0.9 percent) and in two adenomatous polyps (10.5 percent). High grade dysplastic foci were found in four adenomatous polyps (21 percent). CONCLUSIONS: The digestive endoscopy is the safest and efficient method for the diagnosis of the gastric polyps, that in most of the patients does not show characteristic symptoms. The histopathological definition is not possible to the endoscopic glance being needed the pathologist's aid, once the conduct to be adopted will depend on the result of the biopsy.


RACIONAL: Os pólipos gástricos são pequenas lesões gástricas, assintomáticos na maioria dos casos, e são diagnosticados por acaso durante a endoscopia digestiva alta. OBJETIVOS: Avaliar retrospectivamente as características e freqüência dos pólipos gástricos, oriundos da mucosa gástrica em uma casuística extensa de endoscopias digestivas. MÉTODOS: Cento e cinqüenta e três doentes em uma casuística de 26.000 endoscopias digestivas altas realizadas durante 5 anos, sendo que cada doente realizou apenas um exame, foram analisados quanto às características histopatológicas, classificação de Yamada, localização, tamanho e tratamento. Todos os casos tinham pelo menos um pólipo gástrico, confirmado pelo exame histopatológico de biopsia endoscópica. RESULTADOS: Os pólipos foram classificados como hiperplásicos, adenomatosos e de glândulas fúndicas. A maioria deles era menor que 1 cm (pólipos hiperplásicos - 60,5 por cento; pólipos adenomatosos - 73,6 por cento; pólipos de glândulas fúndicas - 72 por cento). Os pólipos hiperplásicos foram os mais freqüentes e diagnosticados em 71,3 por cento dos casos, enquanto os de glândulas fúndicas somaram 16,3 por cento e os adenomatosos foram 12,4 por cento. Os pólipos hiperplásicos e os adenomatosos, na maioria das vezes, foram únicos, enquanto os de glândulas fúndicas tenderam a ser múltiplos. Carcinoma foram detectados em um pólipo hiperplásico (0,9 por cento) e em dois adenomatosos (10,5 por cento). Focos de displasia de alto grau foram encontrados em quatro pólipos adenomatosos (21 por cento). CONCLUSÕES: A endoscopia digestiva é o método mais seguro e eficiente para o diagnóstico dos pólipos gástricos, que na maioria dos doentes não apresenta sintomas característicos. A definição histopatológica não é possível ao olhar endoscópico, necessitando-se do auxílio do patologista, uma vez que do resultado da biopsia dependerá a conduta a ser adotada.


Subject(s)
Adult , Aged , Aged, 80 and over , Female , Humans , Male , Middle Aged , Polyps/diagnosis , Stomach Diseases/diagnosis , Adenomatous Polyps/diagnosis , Adenomatous Polyps/pathology , Adenomatous Polyps/surgery , Gastric Fundus , Gastroscopy , Hyperplasia/pathology , Hyperplasia/surgery , Polyps/pathology , Polyps/surgery , Retrospective Studies , Severity of Illness Index , Stomach Diseases/pathology , Stomach Diseases/surgery , Stomach Neoplasms/diagnosis , Stomach Neoplasms/pathology , Stomach Neoplasms/surgery
11.
Article in English | IMSEAR | ID: sea-65566

ABSTRACT

We report a 32-year-old who lady when presented with anemia and was detected to have Peutz-Jegher syndrome. She had malignancies of the colon and ovary over a 2-year follow up and was successfully managed. On screening the family two more members were confirmed to have Peutz-Jeghers syndrome and have been put on surveillance.


Subject(s)
Adenocarcinoma, Mucinous/diagnosis , Adenomatous Polyps/diagnosis , Adult , Colectomy , Colonic Neoplasms/diagnosis , Endoscopy, Gastrointestinal , Female , Gynecologic Surgical Procedures , Humans , Intraoperative Care , Laparotomy , Ovarian Neoplasms/diagnosis , Peutz-Jeghers Syndrome/diagnosis
12.
Article in Korean | WPRIM | ID: wpr-85282

ABSTRACT

BACKGROUND/AIMS: It has been reported that the risk of gastric polyp is increased in various colonic polyposis syndromes or in series of patients with sporadic colonic polyps. However, there are only a few large case controlled studies of colon cancer incidence in gastric cancer patients who underwent colonoscopy. The aims of this study were to determine the incidence of colorectal neoplasm and to evaluate the necessity of colonoscopic surveillance in patients with gastric cancer. METHODS: We performed colonoscopy in 105 patients with gastric cancer who agreed to undergo colonoscopy before or after 6 months from gastric resection between January 2002 and December 2004 in Kangbuk Samsung hospital. As a control group, 269 consecutive, age and sex matched patients without gastric neoplasm on gastroscopy who underwent colonoscopy within 6 months for the evaluation of various gastrointestinal symptoms during the year 2004 were included. Endoscopic reports and pathological results were reviewed retrospectively. RESULTS: In the patient group, adenomatous polyps were diagnosed in 24/105 patients (22.9%) and colorectal adenocarcinoma in 10/105 patients (9.5%). In the control group, adenomatous polyps were diagnosed in 78/269 patients (29.0%) and colorectal adenocarcinoma in 2/269 patients (0.7%). The incidence of colorectal adenocarcinoma between the patient group and control group showed significant differences (odds ratio 11.04, p=0.003). CONCLUSIONS: The risk of colorectal adenocarcinoma increases significantly in patients with gastric cancer. We suggest that the patients with gastric cancer might carry a high risk for colorectal cancer whom require surveillance colonoscopy.


Subject(s)
Female , Humans , Male , Middle Aged , Adenocarcinoma/diagnosis , Adenomatous Polyps/diagnosis , Colonic Polyps/diagnosis , Colonoscopy , Colorectal Neoplasms/diagnosis , Neoplasms, Multiple Primary/diagnosis , Stomach Neoplasms/pathology
13.
GEN ; 57(3): 134-138, jul.-sept. 2003. ilus, tab, graf
Article in Spanish | LILACS | ID: lil-396390

ABSTRACT

El principal propósito de nuestro trabajo fue la detección de pólipos colónicos para determinar sus características morfológicas e histológicas, y su asociación con displasia o cáncer en dichas neoplasias. 51 pacientes presentaron pólipos con un total de 74 pólipos, 63,5 por ceinto fueron femeninas y 36,5 por ciento fueron masculinos. 51 fueron adenomas de los cuales 42 presentaron displasia leve, 5 moderada y 4 severa. El mayor porcentaje así como los grados más severos de diaplasia se ubicaron en el rango de 50 a 69 años. Tanto los pólipos adenomatosos como los hiperplasicos se distribuyeron en el colon distal. Encontramos relación estadísticamente significativa entre el tamaño y el grado de displasia. Aunque la forma y el tamaño del pólipo, no así entre la forma y el grado de displasia del pólipo, no así entre la forma y el grado de displasia. Aunque la forma y el tamaño del pólipo son características importantes para presunción diagnóstica, todo pólipo debe ser resecado, pues el estudio histológico es el único método para lograr un diagnóstico preciso


Subject(s)
Humans , Male , Female , Colonoscopy , Adenomatous Polyps/classification , Adenomatous Polyps/diagnosis , Colonic Polyps/classification , Gastroenterology , Venezuela
17.
Arch. med. interna (Montevideo) ; 22(3): 95-103, sept. 2000. tab, graf
Article in Spanish | LILACS | ID: lil-329475

ABSTRACT

Objetivos: Correlacionar los hallazgos macroscópicos de la endoscopía y los histológicos. Determinar la prevalencia de transformación focal carcinomatosa en adenomas y la de carcinomas de aspecto endosópico polipoide. Material y método: Se analizaron retrospectivamente todas las lesiones identificadas como pólipos en las fibrocolonoscopías y rectosigmoidoscopías realizadas en la Clínica de Nutrición y Digestivo del Hospital de Clínicas durante un período de 5 años (1992-1997); excluyendo los casos de Poliposis Adenomatosa Familiar u otros síndromes polipósicos, colopatías inflamatorias o cáncer rectocolónico. Se subdividieron los pólipos encontrados por topografía, tamaño (<=5mmm, 6-10mm, 11-20mm), morfología, tipo de resección, y tipo histológico. Los adenomas se clasificaron en base a su arquitectura y a su grado de displasia. En aquellos con transformación carcinomatosa focal se estableció el nivel de invasión de la submucosa utilizando el sistema de Haggitt. Resultados: Se analizaron 3.013 endoscopías (2.074 colonoscopías y 939 rectosigmoidoscopías). En 470 (15,6 por ciento) estudios se encontraron 736 lesiones elevadas. Sólo el 46,8 por ciento de los estudios fueron totales. 232 pacientes fueron hombres y 235 mujeres, desconociéndose el sexo en 3 casos. El 82 por ciento de las lesiones se encontraron entre los 41 y 80 años. En el 64,3 por ciento de los estudios fueron únicas y en el 35,7 por ciento múltiples. 433 lesiones se resecaron por polipectomía, 156 por biopsia y en 147 se desconoce el procedimiento. Se estudiaron histológicamente 507 pólipos, los 229 restantes no se estudiaron, ya sea por pérdida del material en la luz del colon en 24 casos (3.3 por ciento) o por imposibilidad de resección de los mismos. Histológicamente predominaron los adenomas 35,2 por ciento, 19,3 por ciento fueron pólipos hiperplásicos, 0,5 por ciento adenomas aserrados, 1,1 por ciento adenocarcinomas, 11,7 por ciento otras lesiones y se desconoce la histología del 31,1 por ciento de las lesiones. De los adenomas el 69,1 por ciento fueron adenomas tubulares, 27 por ciento tubulovellosos y 2,7 por ciento vellosos, desconociendo el tipo de adenoma en 3 casos. Predominaron en rectosigma (61 por ciento), en hombres (52,1 por ciento), entre los 51 y 80 años (77,2 por ciento), las lesiones <=1 cm (82,2 por ciento) y las formas sesiles (56,4 por ciento). 39 por ciento con displasia leve, 44,3 por ciento moderada y 12 por ciento severa...


Subject(s)
Humans , Male , Adolescent , Adult , Female , Middle Aged , Colonic Neoplasms , Endoscopy, Gastrointestinal , Adenomatous Polyps/complications , Adenomatous Polyps/diagnosis , Colonic Polyps/pathology
19.
Rev. argent. coloproctología ; 11(1): 13-5, mar. 2000.
Article in Spanish | LILACS | ID: lil-284478

ABSTRACT

Antecedentes: Las lesiones polipoideas sésiles del tercio medio y superior del recto, cuando reúnen ciertas características, pueden ser extirpados utilizando un abordaje retrorrectal, del cual se han descripto múltiples variantes a la técnica original. Objetivos: Evaluar los resultados obtenidos con el uso de la modificación a la técnica de Bevan que utiliza la vía retrorrectal sin resección del coxis, ni sección del aparato esfinteriano, y remarcar los criterios de selección. Diseño: Trabajo retrospectivo. Población: Pacientes portadores de formaciones polipoideas sésiles del tercio medio y superior del recto, de ambos sexos, que presentaban los criterios de selección para la realización de esta técnica. Método: Se realizó la técnica de abordaje retrorrectal en el tratamiento de lesiones polipoideas según la técnica de Bevan modificada. Conclusiones: El abordaje retrorrectal para la resección quirúrgica de lesiones polipoedeas del recto medio y superior según esta técnica, es la vía de elección cuando dichas lesiones cumplen los criterios de selección. Su morbilidad es baja y no registramos mortalidad.


Subject(s)
Humans , Male , Female , Middle Aged , Adult , Colorectal Surgery/methods , Adenomatous Polyps/surgery , Adenomatous Polyps/diagnosis , Adenomatous Polyps/physiopathology , Adenoma, Villous/diagnosis , Adenoma, Villous/surgery
20.
Clín. méd. H.C.C ; 4(1): 19-24, ene.-abr. 1999. ilus
Article in Spanish | LILACS | ID: lil-350724

ABSTRACT

El melanoma maligno de la mucosa del sistema digestivo constituye una entidad poco frecuente, y de difícil manejo médico. Esto es debido al diagnóstico tardío, y a que el tratamiento quirúrgico sólo modifica el pronóstico de esta afección en las lesiones superficiales de la mucosa. Presentamos una paciente de 35 años con hemorragia digestiva inferior severa, en la cual, se diagnosticó un melanoma maligno en un pólipo adenomatoso tubular del colon sigmoides. Se discute la importancia del estudio inmunohistoquímico en el diagnóstico de esta afección, así como el diagnóstico diferencial de esta presentación poco usual del melanoma maligno


Subject(s)
Humans , Adult , Female , Colon , Colon, Sigmoid , Digestive System , Melanoma , Neoplasms , Adenomatous Polyps/surgery , Adenomatous Polyps/diagnosis , General Surgery , Venezuela
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