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Updated: May 16, 2026

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Mechanical and Controlled PRP Injections in Patients Affected by Androgenetic Alopecia
Published on: January 27, 2018
Pressure alopecia
1Betsi Cadwaladr University Health Board, Denbighshire, UK.
International Journal of Trichology
|November 28, 2012
Summary
Postoperative alopecia (PA) is a rare condition causing hair loss after surgery or intensive care. Early detection and head repositioning can prevent permanent hair loss and psychological distress.
Area of Science:
- Dermatology
- Surgical Complications
- Hair Loss Disorders
Background:
- Postoperative or pressure alopecia (PA) is an infrequently reported condition.
- It is associated with head immobilization during surgery or prolonged intensive care unit stays.
- PA can be considered analogous to a healed pressure ulcer.
Purpose of the Study:
- To review and summarize published cases of postoperative or pressure alopecia.
- To analyze its occurrence in pediatric and various surgical contexts (cardiac, gynecological, abdominal, facial).
- To highlight clinical manifestations, potential sequelae, and preventive strategies.
Main Methods:
- Systematic review of published literature on postoperative or pressure alopecia.
- Analysis of case reports and series across different surgical specialties and age groups.
- Synthesis of clinical presentations, management, and outcomes.
Main Results:
- PA presents as scarring or non-scarring alopecia.
- Manifestations include scalp swelling, tenderness, ulceration, or delayed alopecia with a history of immobilization.
- The condition can lead to significant long-term psychological distress.
Conclusions:
- Regular head turning and vigilance are recommended for prophylaxis against permanent alopecia.
- Further multi-center studies in high-risk patients are needed to elucidate the etiology of PA.
- Early recognition and intervention are crucial to mitigate the impact of PA.
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