The Hair Transplant Megasession Technique: A Review

The document reviewed the hair transplant megasession technique, which had been increasingly used since around 1994, with sessions involving 1000 or more minigrafts. The success of these procedures varied among individuals and depended on factors such as hair density and texture. The technique, pioneered by Dr. Carlos Uebel in 1983 and popularized by Dr. Bill Rassman who performed sessions of over 3600 grafts by 1994, faced challenges such as poor or delayed growth, the risk of inclusion cysts, graft ischemia, and the "H-factor" which pertains to graft damage. The review also discussed technical aspects of the procedure, patient satisfaction, and the potential for dissatisfaction and litigation due to rising patient expectations. The conclusion was that megasessions up to 1500 minigrafts are safe with a small team, but larger sessions pose greater risks and technical challenges. Despite these concerns, megasessions are expected to remain a staple in hair transplantation, although not every case necessitates such dense packing or high graft numbers.