“…Nevertheless, only a few reports have been published (Manning et al, 1986;Blott et al, 1988a;Rodeck el al., 1988;Nicolaides and Azar, 1990). Most of the publications have reported on single cases (Seeds and Bowes, 1986;Clark et al, 1987;Bernaschek et al, 1987;Longaker et al, 1989;Lasser and Timor-Tritsch, 1990;Obwegeser et al, 1994), indicating that only a few indications for intrauterine shunting exist. Other reasons for the small number of publications concerning intrauterine shunting are difficulties in the insertion of a drain in some cases, and in others the short time span of the drain being in situ before dislocation or obstruction.…”