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PubMed2001

Acquired unilateral visual loss attributed to an accommodative spasm.

BACKGROUND: Accommodative spasm (AS) has been reported to be a rare cause of an acquired unilateral visual loss. We describe a unique case of acquired visual loss due to an apparent unilateral AS triggered by occlusion of the contralateral eye. Clinical examination and photorefraction techniques were performed during the acute phase of the disorder and in the follow-up evaluations. CASE REPORT: An otherwise healthy 27-year-old woman presented with a 2-month decrease of vision in her left eye. Unaided visual acuity in the right eye was 20/20 and in the left eye was finger counting. Orthophoria existed at distance and near. The decrease in vision in the left eye was attributed to an apparent unilateral AS of 5 D, which occurred only when the right eye was occluded. Under the occluder, the right eye also manifested an AS. With the left eye occluded or with binocular viewing, the right eye and left eye accommodated normally. With a 5 D convex lens before the right eye, the visual acuity in the left eye was 20/20. Refractive error with cycloplegia revealed low hyperopia in each eye. CONCLUSION: AS can be the cause of acquired unilateral visual loss. To our knowledge, this is the first documented report of an apparent unilateral AS triggered by occlusion of the contralateral eye.

Accommodation, Ocular↗
PubMed1984

Median nerve compression in Weill-Marchesani syndrome.

Weill-Marchesani syndrome is a rare, generalized disorder of connective tissue manifested by short stature, brachymorphia, and spherophakia. Inheritance is autosomal recessive. In the less than 50 reported cases, joint stiffness in the hands and thenar atrophy have been noted in adults. A kindred is reported here in which release of multiple trigger fingers and bilateral carpal tunnel syndrome in childhood has improved hand function in a brother and sister.

Body Height↗
PubMed2002

Treatment of tendon disorders. Is there a role for corticosteroid injection?

Tendon injuries and other tendon disorders are a source of major concern in competitive and recreational athletes and in many working conditions requiring repetitive movements. The exact etiology, pathophysiology, and healing mechanisms of the various tendon complaints are, however, only partly known and even origin of pain in the chronic tendon disorders is unknown. Thus, the treatment strategies recommended for tendon complaints vary considerably and the given treatment is frequently based on empirical evidence only. Corticosteroid injections are one of the most commonly used treatments for chronic tendon disorders. Despite their popularity, the biologic basis of their effect and the systematic evidence for their benefits are largely lacking. In addition to suppressing inflammation, the effects of local corticosteroid injections could be mediated through their effect on the connective tissue and adhesions between the tendon and the surrounding peritendinous tissues by inhibiting the production of collagen, other extracellular matrix molecules, and granulation tissue in these sites. Also, if the pain in tendinopathy is a result of stimulation of nociceptors by chemicals released by the damaged, degenerated tendon, corticosteroids might mediate their effect thorough alterations in the release of these noxious chemicals, the behavior of these receptors, or both. Achilles tendinopathy, rotator-cuff tendinopathy, tennis elbow, and trigger finger are among the most frequent tendon problems. There is good evidence, however, strongly supporting the use of local corticosteroid injections in the trigger finger only. This can be to the result of either a true lack of the effect or just a lack of good trials in the other complaints. Intimidation with adverse effects of peritendinous corticosteroid injections is based on case reports only rather than convincing data from controlled clinical studies. In light of the animal studies, corticosteroid injection into tendon substance should be avoided, although the true incidence of side effects after local corticosteroid injection(s) for tendon disorders is unknown. Also, the relevance of the steroid used, the tissue affected, the extent of the tendon problem, the duration of the symptoms, the phase of healing at the time of injections, and the postinjection events remain undetermined. Although a complete tendon rupture with loading after steroid injection has been reported, no reliable proof exists of the deleterious effects of peritendinous injections; conclusions in literature are based mainly on uncontrolled case reports that fail under scientific scrutiny, whereas scientifically rigorous studies have not been performed. An acute tendon disorder often responds favorably to early intervention with conservative treatment modalities. Local corticosteroid injections gives good short-term results in prolonged or subacute cases that do not respond to the conventional conservative treatments. Although corticosteroid injections are one of the most commonly used treatment modalities for chronic tendon disorders, there is an obvious lack of good trials defining the indications for and efficacy of such injections, and subsequently, many of the recommendations for the use of local corticosteroid injections do not rely on sound scientific basis. Thus, there is an obvious need for high-quality basic science studies and controlled clinical trials in examining the effects corticosteroids on various tendon disorders.

Adrenal Cortex Hormones↗
PubMedDate not supplied

[Guitarist's cramp: management with sensory re-education].

INTRODUCTION: Dystonia is defined as a sustained co-contraction of agonistic and antagonistic muscles that can cause twisting, twitching and abnormal postures. Occupational dystonias are included in a special group of pathologies that are secondary to a repeated effort related to the professional activity carried out by the sufferer, as can occur in guitarists, violinists and trumpet players, for example. Its pathophysiology includes descriptions of disorders affecting the peripheral and central nervous systems. Studies conducted in monkeys have shown that, through sensory stimulation, repeated movements can give rise to central anomalies in the somatosensory cortex, with growth of the receptive fields that are stimulated and deformation of the separations between those fields. CASE REPORT: We describe the case of a professional guitarist with a seven-year history of symptoms. A neurological examination revealed a co-contraction in the right hand that triggered the extension of the index and little fingers, which made it difficult for him to play his instrument. The patient was submitted to sensory re-education therapy with the use of a splint and a two-month routine of exercises. The response was evaluated using a subjective scale of the patient's symptoms and measurements of the maximum angles of flexion and extension of the affected fingers. Both methods reduced the patient's discomfort and allowed him to exhibit greater skill when playing the guitar. CONCLUSIONS: Occupational dystonias produced by repeated stimulation present alterations in the sensory region of the cortex, with the involvement of motor performance that improves with sensory re-education therapy.

Adult↗
PubMed1997

Risk factors for Raynaud's phenomenon among workers in poultry slaughterhouses and canning factories.

BACKGROUND: Apart from the use of vibrating tools, little is known about risk factors for Raynaud's phenomenon. However, it has been hypothesized that this disorder may have a multifactorial aetiology, involving potential causal or triggering factors which can be found in the workplace. The objective of the study is to identify individual and occupational risk factors of Raynaud's phenomenon in a population of workers not exposed to vibration, but exposed to cold. METHODS: The survey was carried out in 1987-1988 in 17 poultry slaughterhouses and six canning factories and included 1474 employees. Data were collected at the annual visit to the occupational health physician. Finger sensitivity to cold and Raynaud's phenomenon were identified from a list of symptoms occurring from exposure to cold. The role of potential risk factors was assessed using multiple logistic regression. RESULTS: A high prevalence of symptoms of finger sensitivity to cold was observed. Raynaud's phenomenon was more common in women than in men, was related to family history of the disease but not to smoking or alcohol consumption. After controlling for non-occupational factors, the following working conditions appeared as risk factors for Raynaud's phenomenon: use of plastic gloves, less than four rest breaks, breaks in an unheated place, continual repetition of the same series of operations, exertion of the arm or hand and being able to think of something else while working. CONCLUSION: The study showed that a number of working conditions were associated with an increased risk of Raynaud's phenomenon and finger sensitivity to cold. Changes in working conditions might reduce the risk of this disorder in the food processing industry.

Adult↗
PubMed1995

Vascular responses to acute vibration in the fingers of normal subjects.

The aim of this experimental study was to investigate the pathophysiological mechanisms involved in the acute effects of unilateral vibration on the digital circulation of healthy men. In the fingers of both hands of eight male subjects (age 23-47 years) who had never worked with vibrating tools, finger blood flow (FBF) and finger skin temperature (FST) in thermoneutral conditions, and the percentage change of finger systolic pressure (FSP %) after local cooling from 30 to 10 degrees C were measured. The right hand was exposed for 30 min to sinusoidal vibration with a frequency of 125 Hz and an acceleration of 87.5 m.s.-2r.m.s. A control condition consisted of exposure to the same static load (10 N) but without vibration. The measures of digital circulation were taken before exposure to vibration and static load and at 0, 30, 60, and 90 min after the end of each exposure. Exposure to static load caused no significant changes in FBF, FST, or FSP % in either the test right or the control left finger. Immediately after vibration, there was a temporary increase in FBF in the vibrated right finger, while the non-vibrated left finger exhibited no vasodilation. In both the vibrated and non-vibrated fingers, FBF and FST significantly reduced during the recovery time. A large inter-subject variability was observed for FBF and, to a lesser extent, for FST. In the vibrated right finger the decrease in blood flow was significantly related to cold-induced vasoconstriction in the digital vessels. Such a relation was not observed in the non-vibrated left finger. The results of this investigation suggest that acute vibration can disturb the function of digital vessels through two different and opposite mechanisms. Vibration appears to produce local vasodilation and to trigger a central sympathetic reflex vasoconstriction which can be recorded in the ipsilateral and the contralateral finger to vibration. Both local and central vasoconstrictor mechanisms are likely to be involved in the response to cold observed in the digital vessels of a vibrated finger.

Adult↗
PubMed1983

The fate of injected trigger fingers.

Patients who were scheduled for surgical release of their trigger fingers underwent an injection of the involved tendon sheath prior to surgery. In thirty-six patients the injection of methylene blue was undertaken in a proximal-distal direction and in forty-three the direction of the injection was reversed. The success rate of the injections was 61 per cent. in the proximal distal group and 37 per cent in the second group. There was no significant statistical difference with regard to age, but duration of the disorder and mode of injection regarding the different fingers did have statistical significance.

Adolescent↗
PubMed1987

Isolated painless manual incoordination in 57 musicians.

Focal motor syndromes are reported in 57 instrumental musicians who presented with painless uncoordinated movement of the upper limbs. Three stereotyped afflictions were noted: flexion of the 4th and 5th fingers in pianists, flexion of the 3rd finger in guitarists, and extension of the 3rd finger in clarinetists. Our patients differed from those with generalised dystonia in that their disabilities were focal, activity-specific, and non-progressive. Because these disabilities represent entrained responses to peripheral stimuli, distinct from progressive dystonias, they may provide insights into control of fine limb movement and sensory triggers of abnormal movement.

Adult↗
PubMed1999

Anesthesia for Freeman-Sheldon syndrome using a laryngeal mask airway.

PURPOSE: To present a case of Freeman-Sheldon syndrome (FSS) with a previously unreported technique of anesthetic management, consisting of a malignant hyperthermia free anesthetic and laryngeal mask airway. CLINICAL FEATURES: Freeman-Sheldon syndrome (also known as whistling face syndrome, Windmill-Vane-Hand syndrome, cranio-carpo-tarsal dysplasia and distal arthrogryposis type 2) is a rare congenital disorder defined by facial and skeletal abnormalities. The three basic abnormalities are microstomia with pouting lips, camptodactyly with ulnar deviation of the fingers and talipes equinovarus. Patients with FSS frequently present for surgical correction of musculoskeletal or facial abnormalities. There are several anesthetic challenges including difficult airway, intravenous cannulation and regional technique. They may be at increased risk for malignant hyperthermia and postoperative pulmonary complications. We present a case of a two-year-old child with FSS undergoing elective unilateral inguinal hernia repair. A non-triggering anesthetic technique was used, consisting of 2 mg x kg(-1) propofol followed by a continuous infusion, nitrous oxide 50%/oxygen, and 3 microg x kg(-1) fentanyl. Intraoperative and postoperative analgesia was provided by an ilioinguinal nerve block with 10 ml bupivacaine 0.25% with epinephrine 1:200,000. The airway was maintained with a #2 laryngeal mask airway. The anesthetic was uneventful and there were no signs or symptoms of malignant hyperthermia. The patient was discharged home later the same day in good health. CONCLUSION: The use of a laryngeal mask airway and non-triggering anesthetic technique should be considered as options for anesthetic management in patients with FSS for short procedures that do not require neuromuscular blockade.

Anesthesia, Inhalation↗
PubMed2001

[Overuse injury syndromes of the hand, forearm and elbow].

The basic role of the shoulder, upper arm, elbow, forearm, and wrist is to place the hand in the appropriate position, so that it can fulfill its function. The upper extremity, especially the wrist and the hand, has a very complex anatomy with a large number of bones, muscles, tendons and nerves. They are essential to work and sport activities and are subject to acute and/or chronic mechanical injuries. This is why overuse injuries are the most common in these regions. They are often characterised by tendinitis, tenosynovitis, tunnel syndromes, or stress fractures. This paper gives an overview of the most common overuse syndromes of the hand, wrist, forearm and elbow, describing their characteristic symptoms and methods of diagnosis and treatment. The syndromes are trigger finger, dorsal radiocarpal impingement syndrome (gymnast's wrist), DeQuervain's disease, tenosynovitis of other dorsal compartments, intersection syndrome (oarsman's wrist), flexor carpi ulnaris tendinitis, flexor carpi radialis tendonitis, humeral epicondylitis (tennis elbow), posterior impingement syndrome of the elbow, medial tension and lateral compression syndrome, stress fracture in the hand, wrist, forearm and elbow, and tunnel syndromes.

Cumulative Trauma Disorders↗
PubMed1991

Musculoskeletal manifestations of amyloidosis. A review of 83 patients on haemodialysis for at least 10 years.

Long-term regular haemodialysis for chronic renal failure is associated with amyloidosis. In this condition excess amounts of the unexcretable plasma protein beta-microglobulin are laid down in tendons, joints and bones. Amyloidosis presents with various musculoskeletal disorders only after several years of dialysis. We reviewed 83 patients who had been dialysed for at least 10 years. The commonest complaint was severe joint pain in the absence of radiological changes of arthritis (41%), the shoulders usually being the most affected (33%). Carpal tunnel syndrome had developed in 26 patients, and was bilateral in 14 of them; at operation the presence of amyloid was confirmed. Six of these patients had recurrent symptoms after a further two to three years and required another decompression. Other manifestations of amyloidosis included trigger finger, flexor tendon contracture, spontaneous tendon rupture and pathological fracture through amyloid bone cysts. The frequency of symptoms was proportional to the duration of dialysis: all 13 patients on dialysis for over 20 years were affected. Symptoms developed earlier in older patients.

Adolescent↗
PubMed2000

Chronic motor dysfunction after stroke: recovering wrist and finger extension by electromyography-triggered neuromuscular stimulation.

BACKGROUND AND PURPOSE: After stroke, many individuals have chronic unilateral motor dysfunction in the upper extremity that severely limits their functional movement control. The purpose of this study was to determine the effect of electromyography-triggered neuromuscular electrical stimulation on the wrist and finger extension muscles in individuals who had a stroke > or = 1 year earlier. METHODS: Eleven individuals volunteered to participate and were randomly assigned to either the electromyography-triggered neuromuscular stimulation experimental group (7 subjects) or the control group (4 subjects). After completing a pretest involving 5 motor capability tests, the poststroke subjects completed 12 treatment sessions (30 minutes each) according to group assignments. Once the control subjects completed 12 sessions attempting wrist and finger extension without any external assistance and were posttested, they were then given 12 sessions of the rehabilitation treatment. RESULTS: The Box and Block test and the force-generation task (sustained muscular contraction) revealed significant findings (P<0. 05). The experimental group moved significantly more blocks and displayed a higher isometric force impulse after the rehabilitation treatment. CONCLUSIONS: Two lines of evidence clearly support the use of the electromyography-triggered neuromuscular electrical stimulation treatment to rehabilitate wrist and finger extension movements of hemiparetic individuals > or =1 year after stroke. The treatment program decreased motor dysfunction and improved the motor capabilities in this group of poststroke individuals.

Aged↗
PubMed2005

Carpal tunnel syndrome and development of trigger digit.

Although the coexistence of carpal tunnel syndrome and trigger digit in the same hand is well documented, the interactive relationship between them is unclear. This study was conducted to examine the factors that may impact on the development of trigger digit in the hand with idiopathic carpal tunnel syndrome. One hundred and eighty-one patients were enrolled. Their gender, age, dominant side, severity of carpal tunnel syndrome, history or presence of trigger digit, and treatment type were recorded. The patients were evaluated for the presence of trigger digit at 1, 3, 6 and 12 months after surgery or the initial evaluation. Two hundred and sixty-five hands in 152 patients were included in the final assessment. Logistic regression analysis revealed that surgery was a significant risk factor for the onset of trigger digit and may accelerate development of trigger digit when carpal tunnel syndrome was mild to moderate, but not when it was severe. In severe disease, other unknown factors, such as hypertrophy of the flexor tenosynovium, may mask the effect of surgery.

Aged↗
PubMedDate not supplied

[Pseudo-ulnar palsy secondary to ischemic cerebral infarction].

INTRODUCTION: Paralysis of the fingers secondary to injury to the central nervous system or peripheral pseudoparalysis is an infrequent pathological condition. The most common form is the one affecting the ulnar area, although it has also been reported as affecting the radial area or even the index finger. CASE REPORT: We report a case of right-side pseudoparalysis of the ulnar with the fourth and fifth fingers in a bending posture in a 61-year-old male with risk factors for atherothrombosis. The definitive diagnosis was obtained by magnetic resonance (MR) imaging of the head, which revealed frontal cortical infarction on the left side. CONCLUSIONS: The paper includes a discussion on the affected anatomical regions that can trigger this condition, the most important of which is a specific segment of the precentral gyrus with a characteristic shape, that is, either an inverted omega or, less often, an epsilon shape lying horizontal in the axial plane. The literature, however, also includes reports of functional MR imaging or intracortical microstimulation being used to show models of spatial overlay in the cortical motor area of the hand. From a more clinical point of view, it becomes clear that the central nervous system must be evaluated for a stroke or even some other pathology as the causation of an isolated paresis of the fingers, especially if no sensory disorder exists.

Cerebral Infarction↗
PubMed1998

Emotionally triggered asthma: a review of research literature and some hypotheses for self-regulation therapies.

Asthma is a common disease whose morbidity and mortality are rapidly increasing. Panic disorder is common in asthma. Panic, other negative emotions, and a passive coping orientation may affect asthma by producing hyperventilation, increased general autonomic lability, a specific pattern of autonomic arousal that may cause bronchoconstriction, and/or detrimental effects on health care behaviors. Generalized panic is a risk factor for increased asthma morbidity. A repressive coping style also appears to be a risk factor for asthma morbidity because it is accompanied by an impaired ability to perceive symptoms, a necessary prerequisite for taking appropriate remediation. Several self-regulation strategies are hypothesized to be useful adjuncts to asthma treatment. Preliminary research has been done on relaxation therapy, EMG biofeedback, biofeedback for improved sensitivity in perceiving respiratory sensations, and biofeedback training for increasing respiratory sinus arrhythmia. It is hypothesized that finger temperature biofeedback also may be a promising treatment method, and that relaxation-oriented methods will have their greatest effect among asthmatics who experience panic symptoms, while improved perceptual sensitivity will be helpful both for patients who panic and those with repressive coping styles.

Asthma↗
PubMed2006

Trends in elective hand surgery referrals from primary care.

INTRODUCTION: Two prospective audits of activity in a hand unit were performed, in 1989-1990 and during 2000-2001, to identify trends in elective hand surgery referrals from primary care. PATIENTS AND METHODS: Two 6-month prospective audits of activity in a hand unit were performed, including elective referrals from primary care. Data were collected on all in-district referrals with elective hand disorders. Cross boundary flow was identified to permit assessment of changes in referrals by diagnosis over a decade. RESULTS: There was a 36% increase in health authority referrals for elective hand surgery over the decade (from 289 to 392 per 100,000 of population per year). The number of elective hand surgery operations rose 34% over the decade (from 149 to 199 operations per 100,000 of population per year). Carpal tunnel syndrome (the commonest reason for elective referral) almost doubled (from 59.7 to 112 per 100,000 of population per year). Referrals for ganglion, the second most common elective referral, rose modestly. Referrals for osteoarthritis (commonly basal thumb arthritis) almost trebled over the decade to become the fourth commonest condition referred to the hand unit (from 12.7 to 34 per 100,000 of population per year). Referrals for Dupuytrens disease, trigger finger and rheumatoid arthritis were relatively unchanged over the decade. Congenital hand referrals are uncommon but doubled during the decade. CONCLUSIONS: Hand surgery referrals rose by 36% over the decade. Analysis of the commoner conditions referred reveal a high prevalence within the community with the possibility of increased referrals in years to come.

Carpal Tunnel Syndrome↗
PubMed1997

Sports-related and other soft-tissue injuries, tendinitis, bursitis, and occupation-related syndromes.

In this review, four areas are discussed: fluoroquinolone-induced tendinitis, volar flexor tenosynovitis (trigger finger), Achilles tendon lesions, and occupational medicine issues. The relationship of fluoroquinolone treatment to musculoskeletal lesions, especially Achilles tendinitis and tear, is most intriguing. The steady increase in reports of the association cannot be ignored. Although Achilles tendinitis and rupture have comprised the most frequently seen lesions, articles on additional sites of involvement, such as in lateral epicondylitis and De Quervain's tenosynovitis, are reviewed. Volar flexor tenosynovitis and trigger finger are among the most common musculoskeletal problems, and additional studies support the success of corticosteroid injections. Although the value of injections was reported well over 25 years ago, surgery is still unfortunately the first-choice treatment of some physicians. We review three studies on Achilles tendinopathy. In one of the reports, diagnostic ultrasonography is again demonstrated to be of value in assessing tendon lesions. The push to use the term tendinosis rather than tendinitis continues as a result of histologic studies of tendinitis that lack the usual findings of inflammation. However, the presence or absence of chemical inflammation is yet to be ascertained. We review an article that fails to show that work activities are the sole cause of such musculoskeletal syndromes as cumulative trauma or repetitive use. Further studies are needed in the area of work-related upper extremity disorders.

Athletic Injuries↗
PubMed1993

Pain, muscle spasms and twitching fingers following brachial plexus avulsion. Report of three cases relieved by dorsal root entry zone coagulation.

Three patients who, following partial brachial plexus avulsion, experienced pain, involuntary finger twitching and muscular spasms are reported. Two exhibited cutaneous trigger zones, stimulation of which exacerbated their pain; changes in emotional tone aggravated both the pain and the spasms. Pain would appear to be due not only to deafferentation and scarring of the dorsal horn, but also to an afferent pathological barrage from partially damaged dorsal roots. The pathological sensory barrage may activate metameric interneuronal circuits and produce involuntary movements. Exacerbation of both the pain and the spasms can be explained on the basis of intrinsic properties of these ectopic pacemakers.

Adult↗