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Erythema (redness) Pain; Pruritis (itching) [4] Swelling [5] Induration (hardening of the skin) [6] Discoloration [6] Severe reactions may result in cutaneous necrosis at the injection site, typically presenting in one of two forms: (1) those associated with intravenous infusion or (2) those related to intramuscular injection.
The most common adverse reactions after subcutaneous injections are administered are termed "injection site reactions". This term encompasses any combination of redness, swelling, itching, bruising, or other irritation that does not spread beyond the immediate vicinity of the injection. [14]
Fat embolism syndrome occurs when fat enters the blood stream (fat embolism) and results in symptoms. [1] Symptoms generally begin within a day. [1] This may include a petechial rash, decreased level of consciousness, and shortness of breath. [1] Other symptoms may include fever and decreased urine output. [2] The risk of death is about 10%. [2]
The most common manifestations of body fat redistribution are accumulations of fat in the central body in the form of a fat pad on the back of the neck and an accumulation of visceral fat in the abdomen or belly. This fat accumulation is accompanied by a loss of subcutaneous fat in the face, arms, legs, and buttocks.
Cryolipolysis (commonly referred to as "fat freezing") is a non-invasive procedure for fat removal that uses extreme cold to freeze subcutaneous adipose tissue in specific areas of the body. This process aims to reduce localized fat deposits. [1] [2] [3]
It specifically affects the dermis and subcutaneous fat. [1] Signs and symptoms include an area of redness which increases in size over a few days. [1] The borders of the area of redness are generally not sharp and the skin may be swollen. [1] While the redness often turns white when pressure is applied, this is not always the case. [1]
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The symptoms of TACO can include shortness of breath , low blood oxygen levels , leg swelling (peripheral edema), high blood pressure (hypertension), and a high heart rate (tachycardia). [ 3 ] It can occur due to a rapid transfusion of a large volume of blood but can also occur during a single red blood cell transfusion (about 15% of cases). [ 2 ]