Cincuenta años del Departamento de Medicina del Dolor y Paliativa del Instituto Nacional de Ciencias Médicas y Nutrición «Salvador Zubirán¼ / Fifty anniversary of the department of pain and palliative medicine at the Instituto Nacional de Ciencias Médicas y Nutrición «Salvador Zubirán¼

Resumen: Introducción: En México, la primera clínica especializada en el alivio del dolor fue fundada en 1972 por el Dr. Ramón De Lille Fuentes en el Instituto Nacional de Ciencias Médicas y Nutrición «Salvador Zubirán¼ (INCMNSZ). Material y métodos: Se realizó una búsqueda histórica documental y entrevistas a quienes han colaborado con el Departamento de Medicina del Dolor y Paliativa del INCMNSZ desde su fundación. Resultados: Nuestra visión es ofrecer atención del dolor, cuidados paliativos y apoyo continuo. Para ello, documentamos nuestra historia y los logros del departamento. Conclusiones: A 50 años de su fundación, el Departamento de Medicina del Dolor y Paliativa del INCMNSZ es un foro de desarrollo científico y de formación de capital humano con un enfoque humanista.

Abstract: Introduction: In Mexico, the first clinic specializing in pain relief was founded in 1972 by Dr. Ramón De Lille Fuentes at the Instituto Nacional de Ciencias Médicas y Nutrición «Salvador Zubirán¼ (INCMNSZ). Material and methods: A historical documentary search and interviews were carried out with those who have collaborated with the Department of Pain and Palliative Medicine of the INCMNSZ since its foundation. Results: Our vision is to offer pain management, palliative care, and ongoing support. To do this, we document the history and achievements of the department. Conclusions: 50 years after its foundation, the INCMNSZ Department of Pain and Palliative Medicine is a forum for scientific development and human capital training with a humanistic approach.

Treating chronic pain: Current and future status of treatments and aftercare / 全日本鍼灸学会雑誌

The definition of pain by the International Association for the Study of Pain (IASP), as revised in 2020, states that it is "an unpleasant sensory and emotional experience associated with, or resembling that associated with, actual or potential tissue damage," suggesting that pain or similar unpleasant sensory experiences may arise even if the cause of such sensations cannot be clearly identified. Pain, on the other hand, has been classified chronologically as acute, subacute or chronic pain such as those directly caused by cancer and non-cancer diseases and by the mechanisms involved. These are divided into nociceptive, neuropathic, and nociplastic pain, the last one of which is a recent addition to the classification. WHO created an independent category dedicated to chronic pain in its latest version of the International Classification of Diseases (ICD-11) defining it as pain that continues or reiterates over a period of three months or longer. As prolonged pain causes both physical and mental damage resulting in degradation of quality of life, it has been stressed that such pain must be approached from both the physical and mental perspectives. For this reason, multi-faceted evaluation is useful in treating chronic pain. In Japan, there are a number of guidelines for the treatment of chronic pain that have been published by different scientific societies as well as by a study group of the MHLW's Chronic Pain Policy Project. These serve as guides for providing evidence-based treatments to affected patients. Chronic pain remains a major challenge since they not only lower the quality of life of affected patients but also cause considerable damage to Japanese society as a whole.

Effect of Pharmacist Intervention in Outpatient Clinic—Pain Evaluation for Nerve Block Patients Using Pain Vision— / 社会薬学

Pain is a common problem all over the world. A previous report estimated that the prevalence of pain is 40% in Japan. One of the roles of pharmacist is to build evidence with more patient-centered care, but less in region of pain. Our objective was to identify pharmacists’ contributions to patient care through pain-management using PainVision (PV) in an outpatient pain clinic and interventions with polypharmacy. We investigated 28 patients who underwent nerve blocks. Pain were assessed relatively and subjectively using PV and numerical analogue scale (NRS), respectively. The pharmacist intervened pre- and post-nerve block. Interventions focused on evaluations of pain, drug efficacy, complications, blood pressure, pulse rate, and oxygen saturation. Wilcoxon signed-rank test, Spearman rank correlation coefficient and Friedman test were used to analyze the data. The mean age of the patients was 77 (interquartile range 69-84) years, and 12 patients were diagnosed with zoster-associated pain. The pharmacists consulted with patients 213 times and evaluated pain 426 times. We found that the analgesic effect of nerve block were evaluated PV (70; 23-162→20; 5.0-49) and NRS (4; 2-6→1; 0-2) by pharmacist, significantly. It was significant correlation between PV and NRS (r=0.799: P<0.001). Our study showed similar results to previous studies in which doctors and nurses used PV. It is clinically valuable for pharmacists to using PV in outpatient clinics to evaluate pain. Greater roles for pharmacists in hospital outpatient department should be considered, especially pharmacist-led clinical research.

Servicio de dolor agudo en un hospital privado, experiencias y recomendaciones / Acute pain service in a private hospital, experiences and recommendations

Resumen: Las bases de la medicina quirúrgica se deben establecer en el marco del cuidado perioperatorio donde el anestesiólogo es pieza fundamental para la toma de decisiones desde el ingreso hasta el alta y rehabilitación; por eso, el manejo del dolor agudo debe entenderse por todos nosotros como una extensión del cuidado que brindamos. Este artículo describe el esfuerzo por crear un Servicio de Dolor Agudo (SDA) en un hospital privado, donde los recursos se ven más limitados en cuestión de recursos humanos y organización. El modelo de la SDA de un hospital privado es una mezcla de tendencias ya descritas donde el principal actor es el residente de anestesia (bajo costo) y cuyos parámetros de actuación estuvieron basados en la iniciativa PAIN-OUT. Se encontraron áreas de oportunidad y se describió la manera de abordarlas; sin embargo, es innegable que la sensibilización de las autoridades es el paso más difícil e importante para lograr la implementación.

Abstract: Surgical medicine must be established within the framework of perioperative care where the anesthesiologist is a fundamental piece for decision-making from admission to discharge and rehabilitation; so the acute pain management should be taken as an extension of the care of this specialty. This paper describes the effort in developing an acute pain unit in a private hospital, where human resources and organization are constrained. The model of this private acute pain service is a mix of various models written in the literature where the residents of anesthesia are the main actors (low cost), and the standards used are based under the PAIN-OUT initiative. Many areas of opportunity were found along with different solutions, however at the end making authorities sensible about this topic is the hardest step.

An analysis of consultations requested to a pain clinic

BACKGROUND: The study investigated in detail the current status of the consultations requested in a pain clinic. We evaluated the characteristics of the consultations to determine the kind of contents requested, referring departments and factors including demographics, co-morbidities, previous medical problems, and the descriptions of the reasons for the consultation to the pain clinic. METHODS: Clinical data were collected in the authors' institution between 1 January 2009 and 31 December 2013. The medical records were reviewed and compared. Characteristics of both outpatients and inpatients were analysed. RESULTS: Data from 1,140 patients was available for this study. Seven hundred thirteen individuals belonged to the outpatient group and 427 individuals belonged to the inpatient group. Orthopedic surgery, neurosurgery, and otolaryngology were the main departments that requested consultations to the pain clinic. The most frequent requested lesion and diagnostic term were low back and lumbar spinal stenosis, respectively, and the most common reason for consulting was for "control of pain not controlled by medications." Factors that were significantly different between the two groups were gender, questions about other illnesses apart from the main diagnoses, history of specific diseases, acute onset, cancer, operation within 3 months, and physical system abnormalities. CONCLUSIONS: The medical problems addressed by a pain clinic consultation service were diverse. It is rational to develop standardized guidelines for pain consultations, and treatment strategies aimed at alleviating pain per se as well as caring for comorbid conditions.

Review of Medical Dispute Cases in the Pain Management in Korea: A Medical Malpractice Liability Insurance Database Study

BACKGROUND: Pain medicine often requires medico-legal involvement, even though diagnosis and treatments have improved considerably. Multiple guidelines for pain physicians contain many recommendations regarding interventional treatment. Unfortunately, no definite treatment guidelines exist because there is no complete consensus among individual guidelines. Pain intervention procedures are widely practiced and highly associated with adverse events and complications. However, a comprehensive, systemic review of medical-dispute cases (MDCs) in Korea has not yet been reported. The purpose of this article is to analyze the frequency and type of medical dispute activity undertaken by pain specialists in Korea. METHODS: Data on medical disputes cases were collected through the Korea Medical Association mutual aid and through a private medical malpractice liability insurance company. Data regarding the frequency and type of MDCs, along with brief case descriptions, were obtained. RESULTS: Pain in the lumbar region made up a major proportion of MDCs and compensation costs. Infection, nerve injury, and diagnosis related cases were the most major contents of MDCs. Only a small proportion of cases involved patient death or unconsciousness, but compensation costs were the highest. CONCLUSIONS: More systemic guidelines and recommendations on interventional pain management are needed, especially those focused on medico-legal cases. Complications arising from pain management procedures and treatments may be avoided by physicians who have the required knowledge and expertise regarding anatomy and pain intervention procedures and know how to recognize procedural aberrations as soon as they occur.

Preventing and treating chronic disabling pain after surgery

Chronic postoperative pain (CPP) is an important health problem. This is a narrative review of etiologies, mechanisms, risk factors, means of reducing the risk, and treatment of chronic postoperative pain. Methods: This is a topical review based on a focused literature review and personal clinical experience and research efforts on chronic pain after surgical interventions. Results: CPP is defined as new pain in the area of surgery that lasts more than 3-6 months after the operation, is clearly related to tissue and nerve injuries during the operation and cannot be explained by other etiologies. The overall prevalence is that 20-40 percent have some pain and discomfort for a few weeks, 10 percent have moderate pain that cannot be neglected for a few months, about 1 percent develop debilitating CPP. CPP is caused by nerve and tissue injury and abnormal reactions to such injury. Only those who have pre and peri-operative risk factors determined in part by genetic makeup, reinforced by abnormal pain modulating mechanisms, having chronic pain in other part(s) of the body, having psychological stress factors andc atastrophizing thoughts and anxiety, having severe acute pain during and immediately after surgery, chemotherapy or radiation after cancer surgery, and being younger rather than elderly. Risks of CPP can be estimated by a simple scoring system with approximate risk prediction determined by the number and degree of preoperative risk factors. A number of procedures and drugs can ameliorate these risk factors: Regional and local anesthetic techniques when appropriate, anti-hyperalgesic drugs with nitrous Introduction Long-lasting new pain after an operation is a common, sometimes a debilitating consequence of surgery. We know some factors that increase the risk of developing chronic postoperative pain (CPP). The patients’ GP, surgeon, and anesthesiologist must focus on these risks and prioritize efforts to reduce their effects...

Dos casos de calambre refractario del escribano en la clínica de dolor: ¿está la respuesta en la toxina botulínica? / Two cases of refractory writer's cramp in pain clinic: Is botulinum the answer?

Introducción: El calambre del escribano es un trastorno doloroso refractario que suele manifestarse como enfermedad incapacitante tras un período corto de escritura. La terapia convencional con agentes neurogénicos como la carbamazepina muchas veces no beneficia a estos pacientes. En la literatura moderna se ha resaltado el uso de la toxina botulínica en distonías focales, de manera que su uso también podría extrapolarse a los pacientes con espasmo del escribano. Objetivo: Evaluar la eficacia y la seguridad de la toxina botulínica en casos de calambre refractario del escribano. Metodología: Presentamos 2 casos de calambre refractario del escribano. Se evaluó a los pacientes para determinar el grupo de los músculos de la mano que estaban comprometidos. Una vez identificados los músculos se inyectó en ellos la toxina botulínica y se utilizó la respuesta clínica como base para determinar la dosis total requerida. Se hizo seguimiento a los pacientes a fin de evaluar el grado de alivio y cualquier efecto adverso asociado. Resultados: Los 2pacientes presentaron un grado significativo de alivio clínico tras la aplicación de la toxina botulínica. El tiempo de escritura mejoró y los 2 pacientes refirieron un alivio significativo del dolor. En ambos casos fue necesario repetir la inyección después de 3-6 meses, aunque la afección fue menor en cada recaída y fue posible suspenderles la medicación oral. Uno de los pacientes presentó leve debilidad de la mano, que tuvo un impacto clínico menor y revirtió a la normalidad en un lapso de 2-3 semanas. Este hecho no afectó la satisfacción de los pacientes con el tratamiento, considerando que la enfermedad primaria era incapacitante y afectaba el trabajo profesional de todos los días. Conclusión: La toxina botulínica es una alternativa terapéutica segura y eficaz para tratar a los pacientes afectados con calambre refractario del escribano que consulten la clínica de dolor.

Introduction: Writer’s cramp is a refractory painful disorder, often presenting as a disabling disease while writing for a short duration. The conventional therapy in the form of neurogenic agents such as carbamazepine often fails to benefit these patients. Modern literature has highlighted the used of botulinum toxin in focal dystonisas and hence its use can also be extrapolated in patients of writer’s cramps. Aim: Evaluating the efficacy and safety of botulinum toxin in refractory writer’s cramps. Methodology:We present 2 cases of diagnosed refractory writer’s cramp. These patients were evaluated for group of handmuscles involved. Once themuscles were identified, botulinum toxin was injected into these muscles and clinical response was used to iterate the total dose of botulinum needed. These patients were followed up for degree of relief and any associated adverse effects. Results: Both patients showed significant clinical relief after the use of botulinum toxin. Their writing time improved and both patients reported a significant pain relief. The patients required repeat injection 3-6 months, however with each reoccurrence their ailment decreased and they could be taken off oral medication. Minor clinically insignificant reversible weakness was seen in one patient, which reverted to normal in 2-3 weeks time which did not affect patients’ satisfaction to treatment, as the primary disease was disabling for daily professional work. Conclusion: Botulinum toxin is a safe and effective therapeutic option for treating patients of refractory writer’s cramp presenting in the pain clinic.

Clinical analysis of standardized drug treatment of cancer pain at the pain clinic / 中国肿瘤临床

Objective: To observe the efficacy and safety of analgesic drugs in the standardized treatment of cancer pain patients at the pain clinic. Methods: The data of 787 cancer pain patients and their corresponding prescriptions for cancer pain were collected from April, 2012 to April, 2013 at the pain clinic. The obtained information comprise of diseases that lead to cancer pain, cause of pain, pain intensity, and efficacy and side effects of medications. Diseases that caused cancer pain include 658 cases with primary malignant lung cancer. Results: Pain was mainly caused by primary lung cancer in 787 cancer-related patients. An analgesic drug, namely, oxycodone hydrochloride, was administered in 54.6% via single drug therapy. The daily dosage range of this drug was 20 to 90 mg/d in 280 cases. About 35.6% of the studied patients with a daily dosage of 90 mg/d or lower had their pain effectively managed. After the treatment, the number of cases with moderate to severe pain was reduced from 437 (55.5%) to 248 (31.5%). The oral administration of opioid oxycodone hydrochloride tablets ranked first among the prescribed drugs for cancer pain, and single-drug therapy was the choice of medication. The majority of patients had satisfactory pain-relief with a daily dosage of less than 90 mg/d upon the administration of oxycodone hydrochloride sustained-release tablets and morphine sulfate controlled-release tablets. Side effects included mild constipation, nausea, vomiting, dizziness, loss of appetite, urinary retention, somnolence, and so on. Intervention treatment was needed in most of the patients. Conclusion: Pain clinic is critical in the administration of standardized treatment for cancer pain in hospitals. The establishment of pain clinic ensures the standardized treatment of cancer pain.

Alleviating pain in cancer patients / 全日本鍼灸学会雑誌

In 1990, I opened a pain clinic, and was very troubled by the chronic pain endured by my patients. <BR>I looked for a better treatment for chronic pain and discovered the benefits of Oriental medicine (acupuncture and Chinese medicine). In 1992, I became a member of the Eastern Medicine Chikugo Study Group (present Eastern Medicine Kiketsu Study Group) led by Dr. Fumitaka Tayama, and studied acupuncture, which was an effective treatment for chronic pain. <BR>In 1999, I started treating patients with cancer. From these patients, I realized the profound need for them to spend their last days at home. Our clinic started in-home palliative care in July 1999. For 13and a half years until December 2012, the clinic offered home medical care to 383patients, and 63%of them, 241 patients, were able to die at home. In 2012, we treated 41 patients at their homes and were present during the final moments of 26 patients (63.4%). Eight patients died at a palliative care unit (19.6%) and 7 patients died at a hospital (17%). Of 41 patients, 10 patients received acupuncture. To treat loss of appetite, general malaise, etc. we inserted press tack needles into acupuncture points LI-11 and ST-36. For all 41 patients, we provided massage therapy on their hands and legs, called "haut care,"using essential oils to stimulate acupuncture points and meridians. When time permitted, we provided the same massage therapy to family members. <BR>Western medicine is said to target the disease, and Oriental medicine treats the whole patient, not just the disease, and I believe that Oriental medicine is really effective. This perspective leads to holistic care, which is the basis of palliative care. Therefore, the study and practice of Oriental medicine has naturally been of great assistance in promoting in-house palliative care. <BR>As a result of studying acupuncture and using it in our treatment, patients with chronic pain as well as cancer patients have started to come to our clinic for treatment. The clinic has received words of appreciation from patients who have had their persistent symptoms alleviated. I have thus reaffirmed my confidence in the effectiveness of acupuncture. I hope to continue to search for better ways to treat my patients suffering from cancer, including the efficacious treatment of acupuncture.

A Patient with Kikuchi's Disease: What Should Pain Clinicians Do?

Kikuchi's disease (KD) is an idiopathic and self-limiting necrotizing lymphadenitis that predominantly occurs in young females. It is common in Asia, and the cervical lymph nodes are commonly involved. Generally, KD has symptoms and signs of lymph node tenderness, fever, and leukocytopenia, but there are no reports on treatment for the associated myofacial pain. We herein report a young female patient who visited a pain clinic and received a trigger point injection 2 weeks before the diagnosis of KD. When young female patients with myofascial pain visit a pain clinic, doctors should be concerned about the possibility of KD, which is rare but can cause severe complications.

Circuloterapia: uma metáfora para o enfrentamento da dor crônica em duas clínicas de dor / Circle therapy: a metaphor for coping with chronic pains in two pain clinics

Este artigo descreve e analisa a dinâmica da clínica de dor enquanto um "artefato complexo" do sistema terapêutico biomédico, explorando as múltiplas vozes e as relações dialógicas sobre dor e a interdisciplinaridade no cotidiano clínico de duas clínicas de dor situadas em hospitais-escola nas cidades de Salvador e São Paulo. Foi realizado estudo etnográfico orientado pela antropologia interpretativa, na qual se buscou a descrição de situações singulares e expressivas da dinâmica da clínica de dor (considerada enquanto um serviço, constituído no interior da Biomedicina, destinado ao cuidado da dor crônica). Tais situações expressam tensões e soluções construídas a partir do enfrentamento da dor crônica enquanto objeto complexo que impõe, a todos, flexibilidade. Essa experiência etnográfica focalizou quatro espaços terapêuticos: a sala de espera, o corredor, a consulta médica e as discussões de caso clínico. A descrição produzida ilumina as múltiplas vozes sobre dor e interdisciplinaridade no cotidiano da clínica. Os sentidos da circulação nos espaços terapêuticos, representado no texto a partir da metáfora "circuloterapia", orientam essa discussão em torno dos limites e possibilidades da constituição e funcionamento deste serviço.

This paper describes and analyzes the pain clinic's dynamics as a "complex product" of the biomedical therapy system, exploring the many discussions about the meaning of pain and the interdisciplinary collaboration in the therapeutic daily routines of two pain clinics, located in university hospitals in the cities Salvador and São Paulo. An ethnographic approach guided by interpretative anthropology was used to search for the description of singular and expressive situations of the pain clinic's dynamics (considered as a service, established within Biomedicine, intended for care of chronic pain). Such situations express tensions and solutions created from the confrontation of the chronic pain as a complex object that imposes flexibility to all. This ethnography focuses on four therapeutic spaces: the waiting-room, the hall, the medical consultation and the clinical case discussion. The resulting description enlightens the multiple voices on pain and interdisciplinary collaboration in the clinic's daily routines. The directions of circulation within therapeutic spaces guided this reflection around the limits and possibilities of the establishment and operation of this service.

The Clinical Characteristics of Pain and the Usefulness of Pain Clinics from the Perspective of Professional Ballet Dancers in Korea / 대한통증학회지

BACKGROUND: There has recently been a rapid increase in the number of pain clinics and significant advancement in the treatment of pain in Korea. Therefore, this study was conducted to identify possible problems associated with pain clinics and to use this information to help design future pain clinics. This assessment was conducted from the perspective of professional ballet dancers, who are at high risk for pain like other athletes. METHODS: One-hundred professional ballet dancers responded to questionnaires designed to ascertain their preference for different types of clinics, the extent of the pain they experience, and their overall opinion of pain clinics. RESULTS: All of the respondents complained of pain in one or more sites and reported that they had visited some type of clinic for treatment at least once. Overall, the respondents preferred using the following methods to treat pain: orthopedic surgery (76 dancers), oriental medicine (49 dancers), and therapy at pain clinic (48 dancers). Fifty-three percent of the 48 dancers who had received treatment at pain clinics were satisfied with their treatment. Forty-four percent of the 52 dancers who had not been treated at a pain clinic had no knowledge of the existence of such facilities. CONCLUSIONS: This survey revealed that, although professional ballet dancers have a high prevalence of pain, many have no knowledge of pain clinics. Therefore, efforts should be made by pain clinics to make information regarding their facilities widely available to professional ballet dancers so they can serve the widest range of clientele.

Treatment with complementary oriental medicine for two cases of paralysis / 全日本鍼灸学会雑誌

We experienced two cases of paralysis in the facial area treated with complementary oriental medicine.<br>Case 1<br>A 68-year-oid female presented herself in the emergency department at the Iwate Medical University with a complaint of facial deformity.<br>She was diagnosed as left facial paralysis with ptosis and drooping of a corner of the mouth.<br>In our clinic, she was first treated with stellate ganglion block, steroids and antivirals.<br>One week later, we adopted trans-cutaneous electric stimulation therapy and 2 months later used acupuncture. All the symptoms disappeared over a 9 month period.<br>Case 2<br>A 49-year-old female was referred to Iwate Medical University Department of Oral Maxillo-facial Surgery because of her facial itching and hypesthesia.<br>She was diagnosed as herpes zoster and transferred to our clinic. She was treated with stellate ganglion block, trans-cutaneous electric stimulation therapy and steroids.<br>One month later, her symptoms were partially lessened.<br>Two months later, a diagnosis of peripheral trigeminal nerve paralysis of the fist, second and third divisions, was established after a complete medical examination.<br>After that, her paresthesia gradually changed neuralgia-like in spite of our clinical care.<br>Five years later, her symptoms improved to a certain extent with the use of acupuncture.<br>Conclusion<br>We conclude that oriental medicine is effective in the treatment of paralysis.

A Clinical Survey of the Patients in Neuro-Pain Clinic at Ajou University / 대한통증학회지

BACKGROUND: The first pain clinic opened in korea in 1973 at Yonsei University Hospital, however, since then the number of pain clinics has gradually increased, as has the number of patients visiting them.This increase in patient has caused concerns about the way in which pain is managed, therefore, we conducted a retrospective review of data according to the sex, age and disease in an attept to aid us in planning for the future of our pain clinic. METHODS: We analyzed 1,282 new patients who had visited our pain clinic and 828 inpatients who were admitted to our pain clinic between March 2006 and February 2007. RESULTS: The most frequent age group was in the sixties in outpatient and in the seventies in inpatient.In addition, the incidence of disease in new patients and inpatients was as follows: in new patients, lumbar herniated intervertebral disc 16.5%, hyperhidrosis 12.3%, cervical disc disorder 10.5%, acute herpes zoster 8.2%, postherpetic neuralgia 7.9%, and trigeminal neuralgia 7.0%; in admitted patients, acute herpes zoster 17.6%, trigeminal neuralgia 15.6%, lumbar herniated intervertebral disc 13.0%, postherpetic neuralgia 11.2%, hyperhidrosis 9.8%, and complex regional pain syndrome 7.0%. CONCLUSIONS: The patients visiting our pain clinic have presented with a wide variety of diseases. This improved care reflects an effort to expand our fields not only to the management of outpatients but also inpatients, as well as to the treatment of new fields of disease. In the future, We need to manage various pain patients not only in outpatients but also in inpatients to expand our field even through pain clinic is rapidly growing in Korea.

A Survey on Clinical Characteristics of Patients Visiting Pain Clinics / 대한통증학회지

BACKGROUND: Recently, the number of patients visiting pain clinics has been increasing with the augmented concerns of those patients about the management of their pain. We conducted this study in order to elucidate the characteristics of patients visiting pain clinics and to determine a method to further raise their awareness about pain treatment. METHODS: We reviewed 1, 424 new patients who visited our pain clinic from March 2003 to December 2004. We analyzed these patients according to their age and sex, treatment method before visiting the pain clinic, coexisting disease, chief complaint and pain location, resident district, route of visiting pain clinic, and degree of impairment due to pain by use of questionnaire. RESULTS: In age distribution, the largest proportion (23.5%) was in their 50's. Most patients (64.0%) had received treatment in an oriental medicine clinic before visiting the pain clinic. The most common coexisting disease was hypertension (20.3%) and low back pain was the most common chief complaint (68.3%). Most of the patients lived in Gyeonggido (87%) and most visited our pain clinic on the recommendation of other patients who had visited our pain clinic before. CONCLUSIONS: We need to guide pain patients to undergo proper treatment much earlier using patient education or a referral system. Moreover, we should be more careful in patients with diabetes mellitus, and should have greater concern in the treatment of low back pain.

Pain Management at Pain Clinic

With prolonged life expectancy and economic development, most people want a good quality of life. In this regard, the pain control becomes an important part in the medical care in addition to the treatment of the disease per se. Anesthesiologists have been practicing pain medicine for decades, with the unique application of specific nerve blocks. Pain clinic is a specialized department for pain management. The main therapeutic modality practiced at pain clinics in Korea is the nerve block. Nerve block is performed by an injection of an anesthetic or destructive substance hear a nerve or nerve plexus to interrupt its function for a brief or extended period, respectively. Nerve blocks play an important role in diagnosis, prognosis, and treatment of chronic pain. Nerve block intercepts the vicious cycle of pain as well as takes off the pain. Moreover, by improving the local blood flow, it also has an indirect effect on the treatment of pain. Sympathetic nerve block is used not only for pain relief, but also for the treatment of disease mainly accompanying sympathetic hyperactive symptoms. Pain clinic manages several kinds of intractable chronic pain. The rise in the number of pain clinics increases awareness of chronic pain with a considerable impact on our society.