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    Gastrointestinal Complications (PDQ®): Supportive care - Health Professional Information [NCI] - About This PDQ Summary

    Purpose of This Summary

    This PDQ cancer information summary for health professionals provides comprehensive, peer-reviewed, evidence-based information about the pathophysiology and treatment of gastrointestinal complications, including constipation, impaction, bowel obstruction, diarrhea, and radiation enteritis. It is intended as a resource to inform and assist clinicians who care for cancer patients. It does not provide formal guidelines or recommendations for making health care decisions.

    Recommended Related to Cancer

    General Information About Laryngeal Cancer

    Incidence and Mortality Estimated new cases and deaths from laryngeal cancer in the United States in 2014:[1] New cases: 12,630. Deaths: 3,610. Anatomy The larynx is divided into the following three anatomical regions: The supraglottic larynx includes the epiglottis, false vocal cords, ventricles, aryepiglottic folds, and arytenoids. The glottis includes the true vocal cords and the anterior and posterior commissures. The subglottic region begins about 1 cm below...

    Read the General Information About Laryngeal Cancer article > >

    Reviewers and Updates

    This summary is reviewed regularly and updated as necessary by the PDQ Supportive and Palliative Care Editorial Board, which is editorially independent of the National Cancer Institute (NCI). The summary reflects an independent review of the literature and does not represent a policy statement of NCI or the National Institutes of Health (NIH).

    Board members review recently published articles each month to determine whether an article should:

    • be discussed at a meeting,
    • be cited with text, or
    • replace or update an existing article that is already cited.

    Changes to the summaries are made through a consensus process in which Board members evaluate the strength of the evidence in the published articles and determine how the article should be included in the summary.

    The lead reviewers for Gastrointestinal Complications are:

    • Joseph Bubalo, PharmD, BCPS, BCOP (Oregon Health and Science University Hospital)
    • Lillian M. Nail, PhD, RN, FAAN, CNS (Oregon Health & Science University Cancer Institute)

    Any comments or questions about the summary content should be submitted to Cancer.gov through the Web site's Contact Form. Do not contact the individual Board Members with questions or comments about the summaries. Board members will not respond to individual inquiries.

    Levels of Evidence

    Some of the reference citations in this summary are accompanied by a level-of-evidence designation. These designations are intended to help readers assess the strength of the evidence supporting the use of specific interventions or approaches. The PDQ Supportive and Palliative Care Editorial Board uses a formal evidence ranking system in developing its level-of-evidence designations.

    Permission to Use This Summary

    PDQ is a registered trademark. Although the content of PDQ documents can be used freely as text, it cannot be identified as an NCI PDQ cancer information summary unless it is presented in its entirety and is regularly updated. However, an author would be permitted to write a sentence such as "NCI's PDQ cancer information summary about breast cancer prevention states the risks succinctly: [include excerpt from the summary]."

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