Angioedema is a health issue that affects parts of the body like the upper pulmonary and gastric pathways and is identified by abrupt, nonpitting enlargement of the skin, mucous membranes, or both. The swelling usually lasts a few hours to 72 hours and may appear as non-puritic, subcutaneous, or submucosal organ edema. It is characterized by localized swelling brought on by the release of histamine. Itching is rare, and usual areas of appearance include the hands, feet, face, and genitalia, with periorbital swelling being the most often. The main objective of this review article is to study in brief the classifications, etiology, pathophysiology, and clinical trial data by describing the recent advancement in the treatment of angioedema. Various research articles obtained from different journals indexed under Scopus and SCI were used to prepare the review article and for illustrative work software such as Biorender and Microsoft Word was used. Histamine-- mediated angioedema, linked to allergic reactions, coexists with urticaria. Bradykinin-mediated angioedema, exemplified by hereditary angioedema and acquired forms, lacks urticaria. Idiopathic angioedema, with uncertain etiology. Imitated angioedema results from non-IgE-mediated reactions, often induced by medications. It is a complicated medical condition with a variety of causes and mechanisms. Over time, outcomes for patients have been greatly improved by a growing understanding of its etiology, pathophysiology, and available treatments. The field of medical treatment for this difficult problem is always changing, and this is partly due to clinical trials.
Keywords: Angioedema; bradykinin; clinical trials.; etiology; histamine; pathophysiology.
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