Doenças Colestáticas ou Autoimunes 2015
Preamble
The writing group was invited by the Practice Parameters Com- mittee and the Board of the Trustees of the American College of Gastroenterology to develop a practice guideline on primary scle- rosing cholangitis (PSC).
Guidelines for clinical practice are intended to indicate preferred approaches to medical problems as established by scientifically valid research. Double-blind, placebo-controlled studies are preferable, but reports and expert review articles are also used in a thorough review of the literature conducted through the National Library of Medicine’s MEDLINE. When only data that will not withstand objective scrutiny are available, a recommendation is identified as a consensus of experts. Guidelines are applicable to all physicians who address the subject, without regard to specialty training or interests, and are intended to indicate the preferable but not necessarily the only acceptable approach to a specific problem. Guidelines are intended to be flexible and must be distinguished from standards of care that are inflexible and rarely violated. Given the wide range of specifics in any healthcare problem, the physician must always choose the course best suited to the individual patient and the variables in existence at the moment of decision.
