Effects of Interventional Pain Management Procedures during the Acute Phase of Herpes Zoster / 대한피부과학회지

BACKGROUND: Although several interventional pain management procedures (IPs) for reducing the acute herpes zoster (HZ)-related pain have shown some level of effectiveness on early pain relief and the prevention of postherpetic neuralgia (PHN), no conclusive evidence has been presented to support their effectiveness. OBJECTIVE: We evaluated the effectiveness of IPs during the acute phase of HZ for reducing HZ-related pain. METHODS: Sixty-one patients with acute HZ were assessed using the pain visual analogue scale (VAS) that ranges from 0 to 10 at the initial visit and after 1, 3 and 6 months. Changes in pain VAS and the incidence of PHN (pain after 1 month) were compared between 2 patient groups: those who received standard therapy with oral antivirals and analgesics (ST, n=38) and those who received standard therapy with IPs (STIPs, n=23). PHN was defined as either "pain of 1 or higher in pain VAS" or "clinically meaningful PHN (pain of 3 or higher in pain VAS)." RESULTS: Although the initial pain VAS level of patients treated with STIPs (5.74) was higher than that of patients receiving ST (4.09), no significant difference in pain VAS number was seen between the 2 groups at 3 months (0.13 vs. 0.17) and 6 months (0.09 vs. 0.03) of follow-up. The incidence of PHN also was not statistically significant different between the 2 groups at 3 (9.5% vs. 8.3%) and 6 months (9.5% vs. 4.2%). A similar trend was observed in the analysis of HZ patients whose pain VAS level was 3 or higher at the initial assessment. CONCLUSION: Standard therapy with early IPs is effective for rapidly reducing HZ-related pain.

Interventional Pain Management in Rheumatological Diseases: A Three Years Physiatric Experience in a Tertiary Medical College Hospital in Bangladesh

BACKGROUND: Interventional pain management (IPM) is a branch of medical science that deals with management of painful medical conditions using specially equipped X-ray machines and anatomical landmarks. Interventional physiatry is a branch of physical medicine and rehabilitation that treats painful conditions through intervention in peripheral joints, the spine, and soft tissues. METHODS: A cross-sectional study was conducted using three years of hospital records (2006 to 2008) from the Physical Medicine and Rehabilitation Department at Chittagong Medical College Hospital in Bangladesh, with a view toward highlighting current interventional pain practice in a tertiary medical college hospital. RESULTS: The maximum amount of intervention was done in degenerative peripheral joint disorders (600, 46.0%), followed by inflammatory joint diseases (300, 23.0%), soft tissue rheumatism (300, 23.0%), and radicular or referred lower back conditions (100, 8.0%). Of the peripheral joints, the knee was the most common site of intervention. Motor stimulation-guided intralesional injection of methylprednisolone into the piriformis muscle was given in 10 cases of piriformis syndrome refractory to both oral medications and therapeutic exercises. Soft tissue rheumatism of unknown etiology was most common in the form of adhesive capsulitis (90, 64.3%), and is discussed separately. Epidural steroid injection was practiced for various causes of lumbar radiculopathy, with the exception of infective discitis. CONCLUSIONS: All procedures were performed using anatomical landmarks, as there were no facilities for the C-arm/diagnostic ultrasound required for accurate and safe intervention. A dedicated IPM setup should be a requirement in all PMR departments, to provide better pain management and to reduce the burden on other specialties.

Radiation Exposure to Physicians During Interventional Pain Procedures

BACKGROUND: Fluoroscopy has been an integral part of modern interventional pain management. Yet fluoroscopy can be associated with risks for the patients and clinicians unless it is managed with appropriate understanding, skill and vigilance. Therefore, this study was designed to determine the amount of radiation received by a primary operator and an assistant during interventional pain procedures that involve the use of fluoroscopy METHODS: In order to examine the amount of radiation, the physicians were monitored by having them wear three thermoluminescent badges during each single procedure, with one under a lead apron, one under the apron collar and one on the leg during each single procedure. The data obtained from each thermoluminescent badge was reviewed from September 2008 to November 2008 and the annual radiation exposure was subsequently calculated. RESULTS: A total of 505 interventional procedures were performed with C-arm fluoroscopy during three months. The results of this study revealed that the annual radiation exposure was relatively low for both the operator and assistant. CONCLUSION: With proper precautions, the use of fluoroscopy during interventional pain procedures is a safe practice.