Trudinger B J, Pryse-Davies J
Br J Obstet Gynaecol. 1978 Aug;85(8):567-72. doi: 10.1111/j.1471-0528.1978.tb14921.x.
Five patients with fetal complications associated with the use of an intrauterine pressure catheter in labour are described. In four, a fetal vessel was punctured either by the catheter or its introducing sheath. In the remaining patient, cord compression resulted from entanglement with the catheter. These problems may be minimized by a careful catheter introduction technique.