Laparoscopic Surgical Technique for Pain Relief
The majority of patients with advanced pancreatic cancer are not candidates for surgical removal of the tumor, which in most cases has spread beyond the pancreas. Since pain is a frequent symptom for these patients, techniques to reduce pain have been investigated and have been shown to improve a patient's quality of life. In recent studies, a surgical technique known as neurolytic celiac plexus block (NCPB) has been shown to improve patients' pain level, mood, and life expectancy.
The pain experienced by patients with pancreatic cancer involves a cluster of nerve fibers known as the celiac plexus, so named because of its location in the abdomen near the celiac artery. Although the exact mechanical explanation for the pain remains poorly understood, experts believe that pancreatic cancer cells invading this nerve cluster are responsible. Consequently, doctors have discovered that disrupting pain signals from nerves passing through the celiac plexus can significantly reduce pain levels for pancreatic cancer patients.
Traditionally the neurolytic celiac plexus block procedure has been performed under x-ray guidance, in what is known as a percutaneous approach. Memorial Sloan-Kettering physicians have recently shown that by performing this procedure laparoscopically -- using a specially designed instrument called a laparoscope that can be conducted through small incisions in the abdomen -- a patient's pain can be reduced without incurring substantial side effects. The laparoscopic NCPB is performed at the time of operative staging -- a pre-treatment diagnostic procedure in which surgeons use a laparoscope to view the pancreas and surrounding organs to determine the extent of the disease.
Accounting for only 20 minutes of additional time in surgery, this new technique allows surgeons the ability to obtain an excellent view of the celiac plexus at the time of staging laparoscopy. As a result, our surgeons feel that this approach should be at least as effective as the percutaneous approach with fewer potential side effects.