Complex regional pain syndrome type I associated with amyotrophic lateral sclerosis

BACKGROUND

(CRPS I [formerly called reflex sympathetic dystrophy]) is a syndrome with pain and signs of autonomic dysfunction after trauma or immobilization; the pathophysiologic mechanisms of CRPS I, however, remain unknown.

DESIGN

The authors present a case of CRPS I associated with amyotrophic lateral sclerosis. Along with the motor paresis due to amyotrophic lateral sclerosis, pain, swelling, and signs of autonomic disturbance occurred.

CONCLUSIONS

This case supports the hypothesis that immobilization is one of the major contributing factors for CRPS I.

Conversion disorder after implant of a spinal cord stimulator in a patient with a complex regional pain syndrome

IMPLICATIONS

This case history describes the treatment of a patient suffering with persistent pain. He was treated surgically with implantation of a spinal cord stimulator. After surgery, a partial paralysis that could not be explained medically and that was probably related to emotional factors occurred, and cognitive behavioral treatment was begun. This paper discusses the importance of considering social and psychological factors when medical treatment options are considered.

Rheumatological problems in diabetes mellitus

Major complications of diabetes mellitus--classified as microvascular and macrovascular, are more or less well understood. But musculoskeletal syndromes of diabetes are not rare and they are a major cause of morbidity. Musculoskeletal pain is a universal experience. Soft tissue rheumatism such as rotator cuff lesion of the shoulder, carpal tunnel syndrome and stenosing tenosynovitis are more common in subjects with diabetes mellitus. Articular musculoskeletal disorders also occur more frequently in diabetes mellitus. Careful history and physical examination are essential in reaching a specific diagnosis. Unnecessary investigations are expensive, may cause anxiety to the patients and if taken out of clinical context, lead to over-diagnosis and over-treatment. This article briefly covers the association between musculoskeletal disorders and diabetes mellitus.

Twitch-obtaining intramuscular stimulation in reflex sympathetic dystrophy

BACKGROUND

Reflex Sympathetic Dystrophy (RSD) remains a painful disease entity of undetermined etiology and variable response to therapy.

FINDINGS

Presented is a patient with left leg early RSD and chronic musculoskeletal back pain who received automated and electrical twitch-obtaining intramuscular stimulation (ATOIMS & ETOIMS) treatments. Diagnosis combined clinical symptoms of pain and allodynia, signs of motor/trophic changes and electromyographic evidence of especially of left L5 root level irritation, with chronic bilateral, multiple level partial lumbosacral nerve root involvement. Signs and symptoms of early RSD resolved with therapy.

CONCLUSIONS

ATOIMS-ETOIMS have a promising role in the treatment of early RSD associated with neuropathic pain resulting from spondylotic radiculopathy.

Pain management of chronic nonmalignant neuropathic pain

Chronic nonmalignant neuropathic pain is difficult to manage. A challenging case dealing with chronic neuropathic pain subsequent to thoracotomy syndrome and reflex sympathetic dystrophy syndrome is presented. Strategies and approaches to aggressively manage this type of pain are presented.

Surgical sympathectomy for reflex sympathetic dystrophy syndromes

PURPOSE

The purpose of this study was the assessment of the efficacy of thoracoscopic cervicodorsal and open lumbar sympathectomy for the reduction of pain severity and disability associated with reflex sympathetic dystrophy (RSD).

METHODS

From 1992 to 2000, 73 patients with RSD underwent 46 video-assisted thoracoscopic (first to fourth thoracic ganglion) or 37 surgical lumbar (first to fourth lumbar ganglion) sympathetic chain resections. The patients were referred from multidisciplinary pain clinics with documented sympathetically maintained pain syndrome on the basis of reproducible more than 50% reduction in pain severity score (0, no pain; 10, most severe pain imaginable) for more than 2 days after sympathetic block therapy. The mean duration of the RSD symptoms before sympathectomy was 26 plus minus 14 months (range, 6 to 100 months). Postoperative pain severity score, limb disability, and overall patient satisfaction were assessed by an independent third-party observer at a mean follow-up period of 30 months.

RESULTS

No operative mortality or serious morbidity (Horner's syndrome, bleeding that needed transfusion, wound infection) occurred. Transient (<3-month) postprocedural sympathalgia developed in one third of the patients for cervicodorsal sympathectomy and 20% of the patients for lumbar sympathectomy and was treated effectively with trigger point/proximal ganglion block therapy or transcutaneous electrical nerve stimulation. At 3 months after sympathectomy, 10% of the patients had conditions that were judged treatment failures with no reduction in pain severity or limb disability. The remaining patients testified to more than 50% pain reduction, with pain severity scores decreasing from a mean of 8.7 before surgery to 3.4 after sympathectomy. At 1 year, one quarter of the patients had continued significant pain relief (pain severity score, <3) and an additional 50% of the patients indicated continued but reduced pain severity and an increase in daily/work activities. Overall, patient satisfaction (willingness to have procedure again, benefit from sympathectomy) was 77% and was not significantly influenced by patient age, RSD duration/stage, or extremity involvement (lumbar, 84%; cervicodorsal, 72%).

CONCLUSION

Patients with RSD with a confirmed sympathetically maintained pain syndrome can realize long-term benefit from surgical sympathectomy. Procedural efficacy was similar for both upper limb and lower limb RSD syndromes, although the level of pain reduction did deteriorate with time. After sympathectomy, the patients with RSD had a low incidence rate (7%) of "new" complex regional pain or disabling compensatory sweating syndromes.

The treatment of Reflex Sympathetic Dystrophy in a 9 year-old boy with long standing symptoms

Reflex sympathetic dystrophy is an uncommonly reported entity in children and it continues to be underdiagnosed. Compared with adult, childhood reflex sympathetic dystrophy is of unknown etiology and has a better prognosis. The most common therapy in children is progressive mobilization supported by antiphlogistic, analgesic drugs, psychological and physical therapy. We report an interesting case of reflex sympathetic dystrophy of the left knee joint of a nine years old child with symptoms insisting more than four years and recalcitrant to the above treatments. The use of intravenous regional anaesthesia with lidocaine 0.5% and methylprednisolone was successful. No other reports seem to exist on the use of lidocaine 0.5% and methylprednisolone for the therapy of reflex sympathetic dystrophy in children. The treatment is simple, safe and well tolerated by children. Psychological factors should not be underestimated. Early diagnosis and aggressive therapy are important factors for the full recovery of the patients.

Clinical aspects of multifocal or generalized tonic dystonia in reflex sympathetic dystrophy

The authors describe 10 patients with reflex sympathetic dystrophy that progressed to a multifocal or generalized tonic dystonia. The neuropsychologic profile was similar to that of other patients with chronic pain, irrespective of its cause. The distribution pattern of dystonia, the stretch reflex abnormalities, and the worsening of dystonia after tactile and auditory stimuli suggest impairment of interneuronal circuits at the brainstem or spinal level. Antibody titers for glutamic acid decarboxylase, tetanus, and Sjögren antigens were all normal.

Screening of patients with complex regional pain syndrome for antecedent infections

OBJECTIVE

This study was designed to investigate whether Complex Regional Pain Syndrome type I (CRPS I) could be linked to any previous infection.

PATIENTS

Fifty-two patients with CRPS I of one extremity were screened for the presence of antibodies against mostly neurotropic microorganisms.

RESULTS

Of these 52 patients, none had antibodies against Treponema pallidum, Borrelia burgdorferi, or HTLV-1. Only four patients were positive for Campylobacter jejuni. For cytomegalovirus, Epstein-Barr virus, herpes simplex virus, and Toxoplasma gondii, seroprevalences were similar to control values. The total seroprevalence of Parvovirus B 19 in our CRPS population was 77%, which was significantly higher than in an independent Dutch population group (59%). Seroprevalence in lower extremity CRPS 1 (94%) was significantly higher than in upper extremity CRPS I patients (68%). In this study all patients were seropositive for varicella zoster virus (VZV) antibodies, but a high prevalence of VZV antibodies is similar to its prevalence in a normal population (>90%).

CONCLUSIONS

In this study we found a significantly higher seroprevalence of Parvovirus B19 in CRPS I and this is most striking in lower extremity CRPS I patients. Further serologic research in other geographic areas is needed to provide additional information about a potential role of Parvovirus B 19 or other microorganisms in the etiopathogenesis of CRPS I.

Vascular diseases are the most common cutaneous manifestations of reflex sympathetic dystrophy

Reflex sympathetic dystrophy (RSD) is a chronic pain syndrome with prominent cutaneous findings. Atrophy has been considered to be the most common manifestation of the disease. We catalogued the abnormal skin conditions in RSD by means of chart review. Vascular problems were most common, followed by inflammatory diseases, infections, and atrophic diseases. Atrophic disease accounts for a minority of the skin problems seen in RSD. Most cutaneous complaints were related to vascular disease, particularly edema.

Is fibromyalgia a generalized reflex sympathetic dystrophy?

Fibromyalgia and reflex sympathetic dystrophy share defining characteristics, namely chronic pain and allodynia, as well as other important clinical features such as onset after trauma, female predominance, paresthesias, vasomotor instability, response to sympathetic blockade and anxiety/depression. Recent research using heart rate variability analysis demonstrated that patients with fibromyalgia have changes consistent with relentless circadian sympathetic hyperactivity. I propose that fibromyalgia is a sympathetically maintained pain syndrome in which ongoing sympathetic hyperactivity sensitises the primary nociceptors and induces widespread pain and allodynia.

Intrathecal baclofen for the treatment of dystonia in patients with reflex sympathetic dystrophy

BACKGROUND AND METHODS

Patients with reflex sympathetic dystrophy (also known as the complex regional pain syndrome) may have dystonia, which is often unresponsive to treatment. Some forms of dystonia respond to the intrathecal administration of baclofen, a specific gamma-aminobutyric acid-receptor (type B) agonist that inhibits sensory input to the neurons of the spinal cord. We evaluated this treatment in seven women who had reflex sympathetic dystrophy with multifocal or generalized tonic dystonia. First, we performed a double-blind, randomized, controlled crossover trial of bolus intrathecal injections of 25, 50, and 75 microg of baclofen and placebo. Changes in the severity of dystonia were assessed by the woman and by an investigator after each injection. In the second phase of the study, six of the women received a subcutaneous pump for continuous intrathecal administration of baclofen and were followed for 0.5 to 3 years.

RESULTS

In six women, bolus injections of 50 and 75 microg of baclofen resulted in complete or partial resolution of focal dystonia of the hands but little improvement in dystonia of the legs. During continuous therapy, three women regained normal hand function, and two of these three women regained the ability to walk (one only indoors). In one woman who received continuous therapy, the pain and violent jerks disappeared and the dystonic posturing of the arm decreased. In two women the spasms or restlessness of the legs decreased, without any change in the dystonia.

CONCLUSIONS

In some patients, the dystonia associated with reflex sympathetic dystrophy responds markedly to intrathecal baclofen.

Thoracic spine dysfunction in upper extremity complex regional pain syndrome type I

STUDY DESIGN

Case study.

OBJECTIVE

To demonstrate the importance of assessment and treatment of the thoracic spine in the management of a patient with signs and symptoms of upper extremity Complex Regional Pain Syndrome Type I (CRPS-I).

BACKGROUND

The patient was a 38-year-old woman who suffered a traumatic injury to her left hand. Five months after injury, she presented with severe pain, immobility of the left arm, and associated dystrophic changes. She was unable to work and needed help in some activities of daily living.

METHODS AND MEASURES

The patient was treated for 3 months in 36 visits. Initial treatment consisted of cutaneous desensitization, edema management, and gentle therapeutic exercises. However, further examination indicated hypomobility and hypersensitivity of the upper thoracic spine. Joint manipulation of the T3 and T4 segments was implemented. The patient's status was monitored and range of motion, strength, temperature, and skin moisture were measured.

RESULTS

Immediately after the vertebral manipulation, there was a significant increase in the left hand's skin temperature and a decrease in hyperhydrosis as measured by palpation. Shoulder range of motion increased from 135-175 degrees and the patient reported reduced pain from 6/10 to 3/10 on a scale from 0 to 10, where 0 represents no pain. The decrease in the patient's dystrophic and allodynic symptoms permitted further progress in functional re-education. The patient was discharged with full return to independence and initiation of a vocational retraining program.

CONCLUSION

Assessment and treatment of the thoracic spine should be considered in patients with upper extremity CRPS-I.

Glenohumeral joint subluxation and reflex sympathetic dystrophy in hemiplegic patients

OBJECTIVE

To examine the relation between glenohumeral joint subluxation and reflex sympathetic dystrophy (RSD) in hemiplegic patients.

DESIGN

Case-control study.

SETTING

Inpatient rehabilitation hospital.

PATIENTS

Thirty-five hemiplegic patients with RSD (RSD group) and 35 hemiplegic patients without RSD (non-RSD group) were included in the study. Patients with rotator cuff rupture, brachial plexus injury, or spasticity greater than stage 2 on the Ashworth scale were excluded.

MAIN OUTCOME MEASURES

Both the RSD and non-RSD groups were assessed for presence and grade of subluxation from radiographs using a 5-point categorization. The degree of shoulder pain of the non-RSD group was assessed by a visual analogue scale of 10 points.

RESULTS

Glenohumeral subluxation was found in 74.3% of the RSD and 40% of the non-RSD group (p = .004). In the non-RSD group, 78.6% of the patients with subluxation and 38.1% of the patients without subluxation reported shoulder pain (p = .019). No correlation was found between the degree of shoulder pain and grade of subluxation in the non-RSD group (p = .152).

CONCLUSION

Findings from this study suggest that shoulder subluxation may be a causative factor for RSD. Therefore, prevention and appropriate treatment of glenohumeral joint subluxation should be included in rehabilitation of hemiplegic patients.

Outcome measures for complex regional pain syndrome type I: an overview in the context of the international classification of impairments, disabilities and handicaps

PURPOSE

To determine the availability of relevant and objective outcome measures concerning complex regional pain syndrome type I (CRPS I) for rehabilitation medicine.

METHOD

Outcome measures were classified according to the International Classification of Impairments, Disabilities and Handicaps. For each outcome measure a description of concept, operationalization into variables and instrument was given. We performed a PUBMED MEDLINE search (1980-1998) using the following keywords: complex regional pain syndrome, reflex sympathetic dystrophy, impairment, disability, handicap, (long-term) outcome and effect/efficacy.

RESULTS

Most outcome measures were concentrated on impairments, whereas measures at the level of disabilities and handicaps, the most relevant levels for rehabilitation medicine, were mentioned in very few studies. Objective outcome measures were merely found at the level of impairment.

CONCLUSION

The results indicate a need for the development of relevant outcome measures at the level of disabilities and handicaps that can objectively measure treatment efficacy for CRPS I.

Reflex sympathetic dystrophy in hypophosphataemic osteomalacia with femoral neck fracture: a case report

We report a male patient who presented with suspicion of skeletal metastases based upon an abnormal 99-mTc bone scan, which showed increased uptake at both femoral heads, left femoral neck, and several ribs. The images also suggested reflex sympathetic dystrophy, subcapital fracture of the left femur, and rib fractures. A diagnosis of hypophosphataemic osteomalacia was finally made.

Trans-tibial amputation for reflex sympathetic dystrophy: postoperative management

This paper describes the experience with a trans-tibial amputation due to reflex sympathetic dystrophy. Because of lack of information about postoperative management in these cases, the medical history is provided together with a description of early mobilisation and technical information about prosthetic equipment.

[Dystonia following peripheral trauma: clinical findings and diagnostic criteria]

Dystonia is a rare neurological complication after peripheral trauma. Incidence and pathophysiology of post-traumatic dystonia are not known. Predisposing factors are sympathetic reflex dystrophia, pre-existing movement disorders or a family history of movement disorders. The main diagnostic goal is to exclude other causes of secondary dystonia. Objective criteria for posttraumatic dystonia are not established, and therefore differentiation from psychogenic dystonia frequently remains difficult. Careful psychiatric examination is obligatory. Clinical criteria are consistency of the symptoms over time and the presence of symptoms compatible with organic dystonia. Polygraphic EMG examinations provide objective correlates of the movement disorder, but exact EMG criteria for the diagnosis of dystonia have yet to be established.

Reflex sympathetic dystrophy arising in a patient with familial Mediterranean fever

A 14-year-old girl with familial Mediterranean fever (FMF) had had acute attacks of fever, abdominal pain, and arthritis for 4 years. Her last arthritis attack was protracted, leading to reflex sympathetic dystrophy (RSD) in her right lower extremity. Physical therapy along with sympathetic ganglion block and corticosteroid therapy was used for the treatment. To our knowledge, this is the first reported case of RSD arising in a patient with FMF. Early recognition of RSD in FMF patients is important, and physical therapy should be applied along with medical treatment.

Abnormal movements in complex regional pain syndrome: assessment of their nature

Abnormal movements may be a clinical feature in complex regional pain syndrome (CRPS), but their basic nature is unclear. Between August 1989 and September 1998, patients fulfilling diagnostic criteria for CRPS (I or II) and displaying abnormal movements were entered into a prospective study. Fifty-eight patients, 39 women and 19 men, met entry criteria; 47 had sustained a minor physical injury at work. The patients exhibited various combinations of dystonic spasms, coarse postural or action tremor, irregular jerks, and, in one case, choreiform movements. Patients underwent rigorous clinical and laboratory evaluation aimed at characterizing their neurological disturbance. Surprisingly, no case of CRPS II but only cases of CRPS type I displayed abnormal movements. In addition to an absence of evidence of structural nerve, spinal cord, or intracranial damage, all CRPS I patients with abnormal movements typically exhibited pseudoneurological (nonorganic) signs. In some cases, malingering was documented by secret surveillance. This study highlights abnormal movements in CRPS as constituting a key clinical feature that differentiates CRPS I from CRPS II. They are consistently of somatoform or malingered origin, signaling an underlying psychoneurological disorder responsible for the entire CRPS profile.

Topical absorption of isopropyl alcohol induced cardiac and neurologic deficits in an adult female with intact skin

Topical exposure to isopropyl alcohol has been reported in the literature to be toxic if sufficient isopropyl alcohol is absorbed (1-5). A clinical case is reported where a 48-y-old female presented with multiple unexplained cardiac and neurological deficits. The woman had developed the deficits over a 6-mo period in which she had been soaking towels with isopropyl alcohol and applying then to her skin overnight to ease arm pain she was experiencing. Cessation of the isopropyl alcohol exposure resolved her deficits within 3 d. A controlled repeat dermal exposure to isopropyl alcohol under clinical observation reproduced the deficits noted with corresponding serum and urine concentrations of isopropyl alcohol and acetone. Cessation of topical isopropyl alcohol exposure lead to subsequent resolution of all toxicities.