Rami Communicans block prior to endoscopic discectomy was used first time by Dr. Gautam Das & his colleagues. It is one of the sympathetic block having many indications like Internal disc disruption or discogenic back pain, vertebral compression fracture etc. But first time it was used for endoscopic discectomy with excellent results by Dr. Gautam Das and his team. Nowadays rami communicants block is a standard practice before endoscopic discectomy. Read the first published article.