The Annals of Thoracic Surgery, Vol 19, 589-591, Copyright © 1975 by The Society of Thoracic Surgeons
A new instrument for surgical exposure of subaortic and subpulmonic stenosis
O Alfieri and S Subramanian
An instrument for providing adequate visualization of the subvalvular area
during repair of intracardiac defects is described. Essentially a type of
modified nasal speculum, the instrument has proved helpful in performing
resections in both subaortic and subpulmonic stenoses by exposing a wider
surgical field.