Endometriosis is an estrogen-dependent disease characterized by the ectopic presence and growth of functional endometrial tissue, glands, and stroma, outside the uterine cavity .The disease most often affects the ovaries (up to 88% of all cases), uterine ligaments, fallopian tubes, rectum, cervical-vaginal region, and urinary tract. Urinary tract involvement is rare accounting for around 1-2% of all cases, of which 84%are found in the bladder. However, endometriosis can be encountered in other abdominal organs such as the liver, pancreas, intestinal tract, spleen, gallbladder, the abdominal wall, and even the navel. Endometriosis is classified depending on the number, size, and superficial and/or deep location of endometrial implants, plaques, endometriomas, and/or adhesions, as follows: stage I (minimal, 1-5 points), stage II (mild, 6-15 points), stage III (moderate, 16-40 points), and stage IV (severe, >40 points), following the revised American Society for Reproductive Medicine classification for Endometriosis . Exerting a gross classification, endometriotic lesions could be divided into superficial peritoneal endometriosis, deeply infiltrating endometriosis (DIE) and ovarian (cystic) endometriosis. Approximately 10% of women in reproductive age are estimated to be affected by this disease and its symptoms. Review articles are the summary of current state of understanding on a particular research topic. They analyze or discuss research previously published by scientist and academicians rather than reporting novel research results.
Review article comes in the form of systematic reviews and literature reviews and are a form of secondary literature. Systematic reviews determine an objective list of criteria, and find all previously published original research papers that meet the criteria. They then compare the results presented in these papers. Literature reviews, by contrast, provide a summary of what the authors believe are the best and most relevant prior publications.
The concept of "review article" is separate from the concept of peer-reviewed literature. It is possible for a review to be peer-reviewed, and it is possible for a review to be non-peer-reviewed.
Last date updated on June, 2014