We describe a technique of mini-thoracotomy to plicate the paralyzed hemidi
aphragm with thoracoscopic assistance. Most of the hemidiaphragm can be pli
cated expeditiously under direct vision with light derived from a posterior
thoracoscope placed in the auscultatory triangle. Videoscopic vision is em
ployed only occasionally when the view of the posteromedial hemidiaphragm i
s obscured. Continuous suture traction can be easily applied through the mi
ni-thoracotomy, thus maintaining suture tension and enabling maximal invers
ion of the elevated hemidiaphragm. (C) 1999 by The Society of Thoracic Surg
eons.