Superior hypogastric block: Transdiscal versus classic posterior approach in pelvic cancer pain

Objective: The classic posterior approach of superior hypogastric block has several technical difficulties. The transdiscal approach is a novel and easier approach for superior hypogastric which overcome these technical difficulties. Methods: Thirty patients were randomly allocated to two groups: The transdiscal group and the classic group; visual analog scale pain scores, daily morphine consumption, duration of the procedure and side effects were recorded. Results: The duration of the procedure was significantly decreased in the transdiscal group (24.4 +/- 5.6 min) compared to the classic group (57.9 +/- 9.8 min). There were no significant differences between the 2 groups in daily morphine consumption and VAS pain scores. There was no discitis, disc rupture, or herniation in the transdiscal group. Conclusion: The transdiscal approach for superior hypogastric plexus block in pelvic cancer pain is easier, safer, and more effective with less side effects than the classic approach.