Reflex sympathetic dystrophy associated with amyotrophic lateral sclerosis

Reflex sympathetic dystrophy (RSD) is a syndrome characterised by severe distal pain and vasomotor changes. It is believed to be caused by sympathetic nervous system overactivity. Trauma is the most frequent precipitant event. An association with amyotrophic lateral sclerosis (ALS) has been reported only once. We report three patients with ALS in whom the occurrence of RSD, in one of them at a very early clinical stage, seemed to have precipitated a more rapid clinical evolution. New sprouting re-innervating fibres have abnormal ion channels which might increase the risk of RSD. On the other hand, motor changes have been described in RSD, as well as motor strength improvement after RSD treatment. The complex relation of ALS with RSD is discussed. In all ALS patients pain followed by further loss of function should prompt a search for RSD.

Reflex sympathetic dystrophy in a patient with the antiphospholipid syndrome

We describe a 50-year-old woman who developed severe pain of the left lower limb after an episode of thrombophlebitis. Bone scintigraphy and thermography showed results indicative of reflex sympathetic dystrophy. Laboratory analysis revealed the presence of the lupus anticoagulant. The patient was diagnosed as antiphospholipid syndrome complicated with reflex sympathetic dystrophy of the left lower limb. To our knowledge, this is the first report of a patient with reflex sympathetic dystrophy with underlying antiphospholipid syndrome.

Signs and symptoms in complex regional pain syndrome type I/reflex sympathetic dystrophy: judgment of the physician versus objective measurement

OBJECTIVE

To assess the relation between the subjectively assessed and objectively measured diagnostic signs and symptoms in complex regional pain syndrome type I (CRPS I) and to quantify their severity.

DESIGN

Diagnostic signs and symptoms were recorded in patients suffering from CRPS I of one upper extremity for less than 1 year. Independent assessors measured (a) pain by using four visual analog scales (VAS) and the McGill Questionnaire list of adjectives (MPQ), (b) edema with a hand volumeter, (c) skin temperature with an infrared thermometer, and (d) active range of motion (AROM) with goniometers.

SETTING

Two university hospitals.

PATIENTS

Ninety-five women and 40 men with CRPS I of one upper extremity.

RESULTS

Four signs and symptoms were diagnosed in 50 patients, and five in the remaining 85 patients. The mean score for present pain intensity was 31.5 mm and that for pain resulting from exertion of the affected extremity was 71.9 mm. A median of 11.5 words was chosen from the MPQ, with the highest number from its evaluative part. The difference in volume between both hands was 30.4 ml. The mean difference in temperature between the two hands was 0.78 degrees C dorsally and 0.66 degrees C palmarly. The largest decrease in mobility was seen in the wrist and fingers; the thumb was relatively less affected and the little finger relatively more affected than the other fingers.

CONCLUSIONS

Bedside evaluation of CRPS I with Veldman's criteria was in good accord with psychometric or laboratory testing of these criteria.

Bone scintigraphy in children with persistent pain in an extremity, suggesting algoneurodystrophy

In this retrospective study, the data of bone scintigraphy performed in 21 children suspected of reflex sympathetic dystrophy (RSD) were analyzed. All of them had persistent pain in an extremity or a clinical suspicion of RSD. All children with strong suspicion of RSD showed diffuse hypoactivity at the level of the involved area on bone scintigraphy. This hypoactivity was clearly related to a decreased vascular supply. The specificity of this scintigraphic pattern is questionable, however, since two children without suggestive clinical signs for RSD had the same scintigraphic pattern.

Syringomyelia and complex regional pain syndrome as complications of multiple sclerosis

OBJECTIVE

To describe a patient from Southeast Asia with the optic-spinal phenotype of multiple sclerosis who developed syringomyelia and resultant complex regional pain syndrome (formerly named reflex sympathetic dystrophy).

DESIGN

Case report.

SETTING

Department of neurology at a tertiary care hospital in the Republic of Singapore.

PATIENT

A 53-year-old Chinese woman with a history of optic neuritis developed an episode of left hemiparesis leading to a diagnosis of multiple sclerosis. Serial neuroimaging studies revealed an active demyelinating plaque in the cervical area that later progressed into a syrinx. Over a period of 1 year she also developed signs of sympathetic dysfunction including Horner syndrome of the left eye and complex regional pain syndrome in the left hand.

CONCLUSIONS

A case of the optic-spinal phenotype of multiple sclerosis that is commonly observed in Southeast Asia is described. This characteristically tissue-destructive form of multiple sclerosis resulted in syringomyelia complicated by a complex regional pain syndrome. Possible pathogenic mechanisms for these associations are discussed.

Osteoarthritis and risk of falls, rates of bone loss, and osteoporotic fractures. Study of Osteoporotic Fractures Research Group

OBJECTIVE

To examine the association between osteoarthritis (OA), as defined by radiographic evidence and self report, and osteoporotic fractures, falls, and bone loss in a cohort of elderly white women.

METHODS

A cohort of 5,552 elderly women from the Study of Osteoporotic Fractures was followed up prospectively for a mean of 7.4 years. Self-reported, physician-diagnosed OA was recorded at interview, and radiologic OA of the hip and hand were defined from pelvis and hand radiographs obtained at baseline by validated techniques. Prevalent and incident vertebral fractures were detected by vertebral morphometry, and data on incident fractures and falls were collected by postcard surveys; fractures were confirmed by radiography. Bone mineral density (BMD) was measured on 2 occasions at the hip, lumbar spine, and calcaneus, and rates of bone loss were calculated.

RESULTS

Women with radiographic hip OA had a reduced risk of recurrent falls in the first year (relative risk [RR] 0.7, 95% confidence interval [95% CI] 0.5-0.95). However, those with self-reported OA had an increased risk of falls (RR 1.4, 95% CI 1.2-1.5). Radiographic hip OA was associated with reduced bone loss in the femoral neck compared with controls (mean +/- SD -0.29+/-0.09%/year versus -0.51+/-0.03%/year; P = 0.018). However, radiographic hip OA showed nonsignificant trends toward increased bone loss at the calcaneus and lumbar spine. There was no significant association between self-reported OA or radiographic hand OA with bone loss. No definition of OA was associated with incident nonvertebral fracture, hip fracture, or vertebral fracture.

CONCLUSION

Despite having increased BMD compared with controls, subjects with OA did not have a significantly reduced risk of osteoporotic fracture, although there was a trend toward a reduced risk of femoral neck fractures in subjects with severe radiographic OA. The failure of the observed increase in BMD to translate into a reduced fracture risk may be due, in part, to the number and type of falls sustained by subjects with OA. Patients with OA should not be considered to be at a lower risk of fracture than the general population. Physicians should be aware that a high BMD in patients with OA may be falsely reassuring.

[Femoral neck fracture complicating algodystrophy in pregnancy]

BACKGROUND

Sympathetic reflex dystrophy is an uncommon cause of pelvic pain not to be overlooked in pregnant women.

CASE REPORT

At 8 months pregnancy, a 27-year-old woman complained of invalidating pain of the left hip. Magnetic resonance imaging of the pelvis performed the day after delivery evidenced a non-displaced fracture of the femoral neck and a typical aspect of sympathetic reflex dystrophy.

DISCUSSION

The true frequency of sympathetic reflex dystrophy during pregnancy is probably underestimated. Approximately one hundred cases have been reported. The hip joint is involved in 9 out of 10 cases. Such localizations are uncommon outside pregnancy, accounting for 14 to 17% of all cases.

Causalgia and reflex sympathetic dystrophy: does the sympathetic nervous system contribute to the generation of pain?

The striking response of causalgia and reflex sympathetic dystrophy (RSD) to sympatholytic procedures together with signs of autonomic nervous system abnormalities suggest that the sympathetic efferent system can generate or enhance pain (sympathetically maintained pain, SMP). This concept is supported by human and animal experiments indicating that sympathetic activity and catecholamines can activate primary afferent nociceptors. Some clinical evidence, however, calls the SMP concept into question and alternative explanations have been advanced. In this review, we describe the clinical features of causalgia and RSD and the evidence for sympatholytic efficacy. The major barrier to proving the SMP concept is that all available sympatholytic procedures are problematic. We conclude that, although the weight of current evidence supports the SMP concept and its relevance to causalgia and RSD, it remains unproven by scientific criteria. More careful adherence to diagnostic criteria and well-controlled trials of sympatholysis are needed to finally settle the issue.

Autonomic regulation of lymphatic flow in the lower extremity demonstrated on lymphoscintigraphy in patients with reflex sympathetic dystrophy

PURPOSE

Nuclear medicine techniques were used to show that the peripheral lymphatics are under autonomic control in much the same way as the blood vessels that supply the same anatomic region.

METHODS

Three patients with complex regional pain syndrome type 1 (reflex sympathetic dystrophy) involving a lower extremity were evaluated using three-phase bone scintigraphy and peripheral lymphoscintigraphy. Each patient was treated with ipsilateral chemical lumbar sympathectomy, and lymphoscintigraphy was repeated within several days of the procedure.

RESULTS

All three patients had evidence of decreased flow (compared with the contralateral extremity) to normal flow after ipsilateral sympathectomy. Bone scintigraphy, before and after sympathectomy, was difficult to interpret because of the effects of altered weight bearing. Two patients who had unilateral peripheral edema showed marked improvement after sympathectomy and increased lymphatic flow.

CONCLUSIONS

Peripheral lymphatic function is controlled by the autonomic nervous system. In reflex sympathetic dystrophy, peripheral edema may be caused by an increased sympathetic stimulus to the lymphatics. Further study of this phenomenon may show that nuclear medicine studies, such as bone scintigraphy and lymphoscintigraphy, can be used to distinguish patients who will benefit from sympathectomy from those who will not, thereby obviating invasive testing and unnecessary invasive treatment.

Reflex sympathetic dystrophy in a dog

Reflex sympathetic dystrophy is a well-recognized syndrome in human patients following injury to an extremity. The syndrome may include hyperesthesia and autonomic changes. The autonomic changes are initial vasodilatation followed by vasoconstriction (e.g., edema followed by cyanosis, and cool skin); hyper- or hypohydrosis; atrophic changes in the skin, subcutis, and muscles; and osteoporosis. Early treatment with a short course of steroids and infiltration of the painful site with lidocaine may alleviate symptoms. If that fails, sympathetic ganglionic block with lidocaine (and possibly steroids) or surgical sympathectomy may provide resolution. A case of reflex sympathetic dystrophy in a dog is presented, involving bilateral distal hind-limb edema and hyperesthesia.

Algodystrophy and its association with Dupuytren's disease

Seventy-two patients were examined 9 weeks after sustaining a Colles' fracture of the wrist for evidence of algodystrophy. They were examined 18 months later for evidence of Dupuytren's disease to determine the incidence of the association between the two conditions. Forty-one per cent of all patients had evidence of Dupuytren's disease at 18 months following Colles' fracture. Sixty-seven per cent of patients with algodystrophy had evidence of Dupuytren's disease compared with 19% of patients who showed no features of algodystrophy.

Subcutaneous infusion of lidocaine provides effective pain relief for CRPS patients

CASE REPORT

Nine patients with Complex Regional Pain Syndrome types I and/or II (CRPS), previously known as reflex sympathetic dystrophy (RSD) and causalgia, respectively, were selected for treatment with a continuous four to eight week subcutaneous infusion of 10% lidocaine.

RESULTS AND CONCLUSIONS

Five patients completed the infusion treatment. The treatment significantly alleviated much of the pain and other symptomatology (i.e., dysesthesia, allodynia, hyperpathia, color and temperature changes, decreased range of motion of involved extremities, changes in hair and nail growth, etc.) commonly observed for CRPS/RSD patients. Upon discontinuation of the continuous subcutaneous infusion, patients appear to maintain the pain relief obtained. Periodic maintenance infusions may be needed.

A case of reflex sympathetic dystrophy (complex regional pain syndrome, type I) resolved by cerebral contusion

We present a case of refractory reflex sympathetic dystrophy (RSD) (complex regional pain syndrome, type I) whose symptoms (ongoing pain, allodynia, hyperhydrosis and temperature abnormalities) were resolved after the patient suffered a traumatic cerebral contusion in the left temporal lobe, which caused no neurological deficit. This case suggests that symptoms of some RSD patients may largely sustained by a complex network involving the brain.

[Severe algoneurodystrophy of the right foot associated with prostatic cancer]

The authors report 1 case of particularly severe reflex neurovascular dystrophy whose clinical course was marked by the discovery of a carcinoma of the prostate. There was improvement in the reflex neurovascular dystrophy despite hormonal therapy of the cancer. Reflex neurovascular dystrophy cannot be considered as a form of a paraneoplastic syndrome.

Neuropathic pain in Charcot-Marie-Tooth disease

OBJECTIVES

To determine the frequency and extent to which subjects with Charcot-Marie-Tooth (CMT) disease report pain and to compare qualities of pain in CMT to other painful neuropathic conditions.

STUDY DESIGN

Descriptive, nonexperimental survey, using a previously validated measurement tool, the Neuropathic Pain Scale (NPS).

PARTICIPANTS

Participants were recruited from the membership roster of a worldwide CMT support organization.

MAIN OUTCOME MEASURES

NPS pain descriptors reported in CMT were compared with those reported by subjects with postherpetic neuralgia (PHN), complex regional pain syndrome, type 1 (CRPS-1), also known as reflex sympathetic dystrophy, diabetic neuropathy (DN), and peripheral nerve injury (PNI).

RESULTS

Of 617 CMT subjects (40% response rate), 440 (71%) reported pain. with the most severe pain sites noted as low back (70%), knees (53%), ankles (50%), toes (46%), and feet (44%). Of this group, 171 (39%) reported interruption of activities of daily living by pain; 168 (38%) used non-narcotic pain medication and 113 (23%) used narcotics and/or benzodiazepines for pain. The use of pain description was similar for CMT, PHN, CRPS-1, DN, and PNI in terms of intensity and the descriptors hot, dull, and deep.

CONCLUSIONS

Neuropathic pain is a significant problem for many people with CMT. The frequency and intensity of pain reported in CMT is comparable in many ways to PHN, CRPS-1, DN. and PNI. Further studies are needed to examine possible pain generators and pharmacologic and rehabilitative modalities to treat pain in CMT.

Reflex sympathetic dystrophy in a 12-year-old twin with comorbid conversion disorder in both twins

A case of reflex sympathetic dystrophy is presented in a 12-year-old girl with comorbid conversion disorder. Her identical twin also had a conversion disorder. This is the first reported case of coexistence of reflex sympathetic dystrophy and conversion disorder. It is important for clinicians to be aware that these conditions may coexist since the presentation of symptoms differ, even though there are shared features of treatment.

[A triple association: renal malacoplakia, bilateral vulvar hypertrophy, upper limb algodystrophy]

The authors report a case of malakoplakia of the left renal parenchyma, an uncommon site for an inflammatory disease first described in the bladder by Michaelis and Guttmann in 1902 and Von Hansmann in 1903. This case was observed in a 24-year-old girl with no urological history, presenting with bilateral vulval hypertrophy and reflex sympathetic dystrophy of the upper limbs, in whom malakoplakia of the left kidney was discovered incidentally. Intravenous urography showed two large kidneys with a stretched appearance of the renal pelvis. Pathological examination of the partial nephrectomy specimen revealed the diagnosis of malakoplakia, an inflammatory diseases of the renal parenchyma. The pathogenesis has been only partially elucidated, but probably involves a disorder of macrophage function.

Psychosocial aspects of hand injuries and diseases

More than 50% of patients with a diagnosable psychiatric disorder initially present with somatic symptoms, which often effectively distract the physician from the true illness. Moreover, the occupational setting is ripe for the emergence of psychosocial issues.

Severe complications of reflex sympathetic dystrophy: infection, ulcers, chronic edema, dystonia, and myoclonus

OBJECTIVE

To determine the prevalence, type of complication, predisposing factors, and treatment for severe complications in a population of reflex sympathetic dystrophy (RSD) patients.

DESIGN

Retrospective analysis of the data from RSD patients collected over a 12-year period, to investigate the involvement of predisposing factors in an RSD population without severe complications compared with an RSD population with severe complications.

SETTING

Outpatient clinic of a department of surgery of a university hospital.

PATIENTS

A total of 1,006 patients with the diagnosis of RSD established according to prospectively defined criteria.

MAIN OUTCOME MEASURES

The signs and symptoms of every RSD patient who visited the department were prospectively documented in the medical history; these data were retrospectively analyzed with special regard to RSD with severe complications-infection, ulcers, chronic edema, dystonia, and/or myoclonus-for prevalence, type of complication, and treatment.

RESULTS

Seventy-four RSD patients who were mostly young and female developed severe complications. More than one complication occurred in 91% of the affected extremities. Severe complications developed more frequently in the lower extremity (65%). In patients in whom the acute RSD started with a decreased skin temperature of the affected extremity, severe complications developed significantly more often than in acute RSD patients with a warm skin temperature of the extremity from the onset of the disease (p < .001).

CONCLUSIONS

It is important to recognize "cold" RSD immediately at the onset of the disease because this group of RSD patients has a higher risk of developing a severe complication, mostly followed by a severe disability that is resistant to therapy.

Reflex sympathetic dystrophy of the upper extremity--a 5.5-year follow-up. Part II. Social life events, general health and changes in occupation

The aim of this retrospective long-term follow-up study was to describe the psychosocial aspects, such as social life events (SLE), around the causative event of reflex sympathetic dystrophy (RSD) and the psychological history of 65 patients, 3-9 years after RSD of the upper extremity. General health and long-term changes in occupation were assessed by means of a general health questionnaire (RAND-36) and a structured interview, respectively. SLE, with a life-change unit rate more than 35, was present in 32 patients. A psychological (or psychiatric) history was found in 22 patients. In total, 60% of the patients had a SLE and/or a psychological history. The pain scores of the RAND-36 among RSD patients differed significantly from those of the control group. 17 patients changed occupation after RSD. Nearly 30% of the patients had to stop work for more than one year. The results show a high coincidence between RSD and associated psychosocial disorders and this may play a role in intensifying and prolonging the symptomatology of RSD.

Reflex sympathetic dystrophy of the upper extremity--a 5.5-year follow-up. Part I. Impairments and perceived disability

The aim of this retrospective and long-term follow-up study was to identify impairments resulting from reflex sympathetic dystrophy (RSD) of the upper extremity and to analyze the relationship between impairment and disability in RSD patients. The study group consisted of a referred sample of 65 RSD patients, with clinical signs in the upper extremity. RSD developed after fractures of the wrist or hand in 29 patients or after a carpal tunnel release in 9 patients. The mean interval between the RSD diagnosis and our evaluation was 5.5 (3-9) years (SD = 0.8). The main outcome measurements were the impairments assessed by standard physical examination. ADL and pain were quantified with a visual analogue scale (VAS). Pain was evaluated immediately before and after the physical examination and the perceived pain was determined in the week before the examination. Significant differences in impairments were found between the affected and the unaffected sides (p < 0.05). According to the AMA-guides, the impairments did not lead to disabilities. Significant correlations were found between VAS-ADL and VAS-pain in the last week prior to evaluation and full fist grip-strength. Pain seems to be the most disabling effect.