Perianal Abscess — The Immunological Differences Between Fournier Gangrene and Perianal Abscess
Citation(s)
Diab J, Bannan A, Pollitt T Necrotising fasciitis. BMJ. 2020 Apr 27;369:m1428. doi: 10.1136/bmj.m1428. No abstract available.
Park SJ, Kim DH, Choi CI, Yun SP, Kim JH, Seo HI, Jo HJ, Jun TY Necrotizing soft tissue infection: analysis of the factors related to mortality in 30 cases of a single institution for 5 years. Ann Surg Treat Res. 2016 Jul;91(1):45-50. doi: 10.4174/astr.2016.91.1.45. Epub 2016 Jun 30.
Wang JP, Cai C, Du JL, Shi HQ, Liu QW, Dai ZH, Zhong ZF Role of interleukin-17 in the pathogenesis of perianal abscess and anal fistula: a clinical study on 50 patients with perianal abscess. ANZ J Surg. 2019 Mar;89(3):244-247. doi: 10.1111/ans.14874. Epub 2018 Oct 25.
The Cytokines and Immune Checkpoint Differences Between Fournier Gangrene and Perianal Abscess
Interventional studies are often prospective and are specifically tailored to evaluate direct impacts of treatment or preventive measures on disease.
Observational studies are often retrospective and are used to assess potential causation in exposure-outcome relationships and therefore influence preventive methods.
Expanded access is a means by which manufacturers make investigational new drugs available, under certain circumstances, to treat a patient(s) with a serious disease or condition who cannot participate in a controlled clinical trial.
Clinical trials are conducted in a series of steps, called phases - each phase is designed to answer a separate research question.
Phase 1: Researchers test a new drug or treatment in a small group of people for the first time to evaluate its safety, determine a safe dosage range, and identify side effects.
Phase 2: The drug or treatment is given to a larger group of people to see if it is effective and to further evaluate its safety.
Phase 3: The drug or treatment is given to large groups of people to confirm its effectiveness, monitor side effects, compare it to commonly used treatments, and collect information that will allow the drug or treatment to be used safely.
Phase 4: Studies are done after the drug or treatment has been marketed to gather information on the drug's effect in various populations and any side effects associated with long-term use.
