Library

feed icon rss

Your email was sent successfully. Check your inbox.

An error occurred while sending the email. Please try again.

Proceed reservation?

Export
  • 1
    Electronic Resource
    Electronic Resource
    Springer
    International journal of colorectal disease 12 (1997), S. 14-18 
    ISSN: 1432-1262
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Résumé. Des polypes gastroduodénaux se développent dans près de 90% des sujets atteints de polypose adénomateuse familiale et les cancers péri-ampullaires constituent dans ce syndrome l'affection maligne extra-colique la plus fréquente. Les adénomes péri-ampullaires se sont révélés être des précurseurs des carcinomes péri-ampullaires. Des travaux ont montré que le sulindac, un anti-inflammatoire non stéroïdien, permet la régression des polypes rectaux en cas de polypose adénomateuse familiale. Toutefois le rôle de ce médicament dans la régression des polypes péri-ampullaires n'est pas précisé. Depuis mai 1993, une étude prospective a débuté afin d'évaluer le rôle du sulindac dans la prévention des récidives de polypes après résection de grands polypes duodénaux (plus d'un cm) chez des patients atteints de FAP. Huit patients dont l'âge moyen est de 50 ans (35 à 65) porteurs de larges polypes péri-ampullaires bien documentés, ont été soumis à un traitement de sulindac à raison de 150 mg deux fois par jour. Avant d'étre inclus dans l'étude, tous les patients out subi l'excision de larges polypes de la région péri-ampullaire par résection endoscopique ou par chirurgie. Tous les patients étaient porteurs de multiples petits polypes duodénaux résiduels. Le follow-up a été réalisé par un endoscopiste expérimenté avec un vidéo-endoscope à vue latérale. L'endoscopie a été réalisée tous les six mois. Le suivi moyen est de 17,5 mois (10 à 24 mois). Chez trois patients, l'administration de sudinlac a dûêtre interrompue en raison des effets secondaires deux fois, crampes abdominales (n = 2), et saignements de la partie supérieure du tube digestif (n = 1). Aucun de ces patients n'a présenté de régression des petits polypes péri-ampullaires. Chez un patient, on a assisté au développement d'un cancer péri-ampullaire invasif alors même qui'il était sous sulindac et trois patients ont développé de larges récidives de polypes nécessitant un traitement complémentaire. En conclusion, dans notre expérience, le sulindac n'a aucun effet bénéfique significatif dans le contrôle péri-ampullaire chez des patients porteurs de FAP. Un traitement médical effectif de ces polypes fait toujours défaut.
    Notes: Abstract. Background: Gastro-duodenal polyps develop in up to 90% of familial adenomatous polyposis (FAP) patients and periampullary carcinoma is one of the most common extra-colonic malignancies in this syndrome. Periampullary adenomas have been shown to be precursor lesions to periampullary carcinoma. Sulindac, a non-steroidal anti-inflammatory drug, has been reported to cause regression of rectal polyps in FAP patients, however its role in periampullary polyp regression is unclear. Methods: In May 1993, a prospective study was begun to evaluate the role of sulindac in prevention of polyp recurrence after resection of large (〉1 cm) duodenal polyps in FAP patients. Eight patients, mean age 50 years (range 35 to 65), with documented large periampullary polyps were placed on sulindac 150 mg twice daily. Prior to enrolment, all patients had their large polyps removed from the periampullary region by interventional endoscopy or by surgery. All patients had multiple small residual duodenal polyps. Follow-up was performed by one experienced endoscopist with a side-viewing video endoscope. Endoscopy was performed 6 monthly. Median follow-up time was 17.5 months (range 10 to 24 months). Results: In 3 patients, sulindac was discontinued due to side effects: abdominal cramps (n = 2) and upper G-I bleeding (n = 1). None of the patients had regression of small periampullary polyps. In addition, one patient developed an invasive periampullary carcinoma while on sulindac and 3 patients developed large recurrent periampullary polyps requiring further treatment. Summary: In our experience, sulindac is of no significant benefit for the control of periampullary polyps in FAP. Effective medical treatment of these polyps is still lacking.
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
  • 2
    ISSN: 1432-1203
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Abstract Recent characterization of the molecular genetic basis of hereditary nonpolyposis colorectal cancer provides an important opportunity for identification of individuals and their families with germline mutations in mismatch repair genes. Cancer family history criteria that accurately define hereditary colorectal cancer are necessary for cost-effective testing for germline mutations in mismatch repair genes. The present report describes the results of analysis of 33 colorectal cancer cases/families that satisfy our modified family history criteria (Mount Sinai criteria) for colorectal cancer. Fourteen of these families met the more stringent Amsterdam criteria. Germline MSH2 and MLH1 mutations were identified by the reverse transcription-polymerase chain reaction and the protein truncation test, and confirmed by sequencing. Microsatellite instability analysis was performed on available tumors from affected patients. MSH2 or MLH1 mutations were detected in 8 of 14 Amsterdam criteria families and in 5 of the remaining 19 cases/families that only satisfied the Mount Sinai criteria. Three of the latter families had features of the Muir-Torre syndrome. A high level of microsatellite instability (MSI-H) was detected in almost all (16/18) colorectal cancers from individuals with MSH2 and MLH1 mutations, and infrequently (1/21) in colorectal cancer specimens from cases without detectable mutations. Families with germline MSH2 and MLH1 mutations tended to have individuals affected at younger ages and with multiple tumors. The Amsterdam criteria are useful, but not sufficient, for detecting hereditary colorectal cancer families with germline MSH2 and MLH1 mutations, since a proportion of cases and families with mutations in mismatch repair genes will be missed. Further development of cancer family history criteria are needed, using unbiased prospectively collected cases, to define more accurately those who will benefit from MSH2 and MLH1 mutation analysis.
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
Close ⊗
This website uses cookies and the analysis tool Matomo. More information can be found here...