Paradoxical Adipose Hypertrophy (PAH) After Cryolipolysis

Area of Science:

• Dermatology
• Aesthetic Medicine
• Cosmetic Procedures

Background:

• Cryolipolysis is a popular non-invasive method for localized fat reduction using cold temperatures.
• Paradoxical adipose hypertrophy (PAH) is an uncommon but aesthetically significant adverse effect of cryolipolysis.
• PAH presents as an enlargement of subcutaneous fat tissue in the treated area.

Purpose of the Study:

• To report and characterize four cases of paradoxical adipose hypertrophy (PAH) following cryolipolysis.
• To analyze the clinical presentation and outcomes of PAH after cryolipolysis treatment.
• To inform clinicians and patients about this rare complication.

Main Methods:

• Retrospective review of patients undergoing cryolipolysis between January 2014 and January 2017.
• Inclusion of all patients with suspected PAH after treatment with a CoolSculpting device.
• Analysis of clinical data and treatment outcomes for identified PAH cases.

Main Results:

• Four out of 398 cryolipolysis patients developed PAH, presenting as painless swelling 2-4 months post-treatment.
• One patient underwent liposuction, with histological findings of nonspecific panniculitis.
• Three patients experienced spontaneous symptom stabilization over several months without intervention.

Conclusions:

• Paradoxical adipose hypertrophy (PAH) can occur months after cryolipolysis, despite the procedure's general efficacy.
• Informing patients about the risk of PAH and ensuring regular follow-up are crucial for timely diagnosis.
• Surgical intervention may be considered for persistent PAH cases unresponsive to conservative management.