Fig. 3
Fetoscopic endoluminal tracheal occlusion. a 3 mm triple lumen curved sheath loaded with 1.3 mm fiber fetoscope with deported eyepiece and balloon catheter (e.g., BALT, Montmorency, France) carrying an inflated balloon (e.g., GVB 16, Cathnet Science, Paris, France) at the tip. The third channel is prepared for fluid sampling. b Detail of same sheath, fetoscope, and balloon catheter now with deflated balloon. c Fetoscopic view of inflated balloon after detachment from the catheter in the fetal trachea (if not specified otherwise, instruments from Karl Storz, Tuttlingen, Germany) (© UZ Leuven)