The impact of a comprehensive evaluation in the management of cancer pain.

To evaluate the importance of a comprehensive evaluation in the management of patients with cancer pain, we surveyed 276 consecutive consultations (226 retrospectively and 50 prospectively) performed by the pain consultant at Memorial Sloan-Kettering Cancer Center. For all consultations, the pain diagnosis, other medical and neurologic diagnoses, investigations and suggested therapeutic interventions were recorded. The pain consultation identified a previously undiagnosed etiology for the pain in 64% of patients in both surveys. Metastatic neoplasm was the most common lesion discovered. In addition, the prospective survey yielded new neurologic diagnoses in 36% of patients and an unsuspected infection in 4%. Eighteen percent of prospectively surveyed patients received radiotherapy, surgery or chemotherapy based on the findings of the pain consultant. These data confirm the importance of a comprehensive neuro-oncologic evaluation in the management of cancer pain. An understanding of oncology, neurology and medicine is critical to assess and treat these patients.