The Phenol Celiac Plexus Block & the Pain Boards Community Chat Room!

Summary In this Pain Exam Podcast episode, Dr. David Rosenblum discusses a journal club article on low volume neurolytic retrocrural celiac plexus blocks for visceral cancer pain. The study reviewed 507 patients with severe malignancy-related abdominal pain, with data retained for 455 patients at the 5-month mark. Dr. Rosenblum explains that the procedure involves injecting 3-5ml of 6% aqueous phenol at the T12-L1 level under fluoroscopic guidance, with an average procedure time of 16.3 minutes. The study found significant pain relief lasting up to six months, reduced opioid consumption, and improved quality of life for patients with primary abdominal cancer or metastatic disease. Dr. Rosenblum shares his personal experience with celiac plexus blocks, including the trans-aortic approach he trained on, and mentions his interest in ultrasound-guided approaches. He also announces upcoming teaching engagements at ASPN, Pain Week, and other conferences, as well as CME ultrasound courses available through nrappain.org. Additionally, he mentions a new community page on the website where users can share board preparation information, though he emphasizes that remembered board questions should not be posted as he is a board question writer himself. Pain Management Board Prep Ultrasound Training REGISTER TODAY! Create an Account and get Free Access to the PainExam- NRAP Academy Community Highlights Introduction and Upcoming Events Dr. David Rosenblum introduces the Pain Exam Podcast and shares information about upcoming events. He mentions teaching ultrasound at ASPN in July, attending Pain Week in September, and participating in the Latin American Pain Society conference. Dr. Rosenblum also promotes his CME ultrasound courses available at nrappain.org and mentions he's considering organizing another regenerative medicine course in fall or winter. He offers private training for those wanting more intensive ultrasound instruction. Board Prep Community Announcement Dr. Rosenblum announces a new community page on the nrappain.org website for board preparation. He explains that registered users can access free information and keywords relevant to board exams. He emphasizes that users should not post remembered questions as this would be inappropriate, noting that he himself is a board question writer for various pain boards. Dr. Rosenblum mentions that a post about phenol in this community inspired today's podcast topic. Journal Article Overview on Celiac Plexus Block Dr. Rosenblum introduces a journal article on low volume neurolytic retrocrural celiac plexus block for visceral cancer pain, a retrospective review of 507 patients with severe malignancy-related abdominal pain. He explains that the study assessed pain relief provided by this procedure, its duration, reduction in daily opioid consumption, and quality of life improvements. The patients received neurolytic blocks without previous diagnostic blocks due to multiple comorbidities, which Dr. Rosenblum acknowledges is sometimes necessary with very sick patients despite the typical preference for diagnostic blocks before neurolysis. Dr. Rosenblum's Personal Experience with Celiac Plexus Blocks Dr. Rosenblum shares his personal training experience with trans-aortic celiac plexus blocks, where a needle is inserted through the aorta after confirming no plaques or aneurysms are present. He describes it as a safe and effective procedure despite sounding intimidating. He mentions he's only performed a handful of these procedures and doesn't do many now as an outpatient pain doctor. Study Methods and Results Dr. Rosenblum details the study methods, noting that of 507 patients studied, data for 455 was retained at the end of the review. Patients were evaluated before and after the neurolytic retrocrural celiac plexus block under fluoroscopic guidance. Assessment included procedure duration, pain scores (0-10 scale), daily opioid consumption, and quality of life improvement. Follow-up was completed six months after the procedure, showing improved pain scores, reduced opioid consumption, and better quality of life throughout the study period. Some pain returned during months 4-6 due to disease progression and the anticipated duration of the neurolytic agent. The study noted a 6.7% initial vascular contrast uptake during the procedure while using digital subtraction angiography with fluoroscopy. Study Limitations and Conclusions Dr. Rosenblum discusses the study's limitations, including the need for a larger sample size and a prospective trial with a control group, though he acknowledges this is unrealistic given the patient population. He mentions that a proven quality of life questionnaire would be beneficial, and that comparing alcohol, phenol, and RF thermocoagulation would be interesting to evaluate duration effects and side effects. The study concluded that low volume neurolytic retrocrural celiac plexus block with phenol is safe, providing up to six ...