Rev Clin Esp. 2003 Aug;203(8):373-7. [Neurological involvement in systemic sclerosis] [Article in Spanish] Campello Morer I, Velilla Marco J, Hortells Aznar JL, Almárcegui Lafita C, Barrena Caballo R, Oliveros Juste A. Unidad de Neurología. Fundación Hospital Manacor. Baleares. Spain. isacam@saludalia.com Comment in: Rev Clin Esp. 2003 Aug;203(8):361-2. Abstract INTRODUCTION: Systemic sclerosis (SS) is recognized as the connective tissue disease which less frequently presents neurological complications; in recent studies it is demonstrated, however, that neurological involvement in SS is more frequent of what it had been assumed. PATIENTS AND METHODS: Clinical neurological exploration was done in 26 patients with definitive SS; an electroneurogram was carried out in 23 cases in order to determine the prevalence of central neurological pathology and of peripheral neuropathy, to define its characteristics, and to investigate possible associations with clinical parameters and with autoimmunity. RESULTS: 23 cases (88%) were females and 3 cases (12%) males; the median age was 57.5 12.0 (SD) years, while the median age to the diagnosis was 51.3 12.3 (SD) years and the median period of natural history of disease was 6.2 3.1 years. Seven patients (26.9%) showed involvement of the CNS, being the headache and the neuropsychiatric manifestations the most common conditions (11.5%). Peripheral neuropathy prevalence was 39.1% (9 cases); according to the distribution of the injury, the polyneuropathy prevailed in 30.4% of cases. With regard to the functional selectivity, the sensitive-motor forms were most frequent (55.6%); according to the most involved structure, the axonal neuropathy was most common (44.4%).Discussion. The possible pathogenic mechanisms of the neurological pathology in this disease are discussed. Clin Exp Dermatol. 1990 Mar;15(2):91-4. Neurological complications of systemic sclerosis--a report of three cases and review of the literature. Berth-Jones J, Coates PA, Graham-Brown RA, Burns DA. Department of Dermatology, Leicester Royal Infirmary, UK. Comment in: Clin Exp Dermatol. 1991 Sep;16(5):403. Abstract We report three cases of systemic sclerosis demonstrating four different neurological complications: trigeminal neuropathy, peripheral neuropathy, carpal-tunnel syndrome and prolonged response to local anaesthesia. A review of the literature reveals a wide range of neurological abnormalities associated with systemic sclerosis. When they occur, these are often presenting features. PMID: 2161303 [PubMed - indexed for MEDLINE] Publication Types, MeSH Terms Publication Types: Case Reports Review MeSH Terms: Adult Anesthesia, Local/adverse effects Carpal Tunnel Syndrome/etiology Cranial Nerve Diseases/etiology* Female Humans Middle Aged Peripheral Nervous System Diseases/etiology* Scleroderma, Systemic/complications* Trigeminal Nerve LinkOut - more resources Muscle Nerve. 2003 Sep;28(3):330-5. Peripheral neuropathy in scleroderma. Poncelet AN, Connolly MK. Department of Neurology, Box 0114, University of California, San Francisco, San Francisco, California 94143, USA. ponce@itsa.ucsf.edu Abstract Because patients with scleroderma report neuropathic symptoms including numbness, paresthesias, and dysesthesias, we assessed peripheral nerve function in such patients. Fourteen scleroderma patients underwent complete neurologic examination, nerve conduction studies (NCS) and quantitative sensory testing (QST). Neurologic examination revealed reduced vibration (7) or pinprick (4) sensation in the upper or lower extremities, focal atrophy or proximal weakness (2), and decreased deep tendon reflexes (2). NCS showed reduced sensory nerve action potentials (1) and carpal tunnel syndrome (1). QST of the upper and lower extremity revealed increased cold or vibration detection thresholds in 8 of 14 patients. Our findings suggest that peripheral neuropathy occurs in patients with scleroderma at a higher frequency than previously appreciated. These findings cannot be ascribed to compression neuropathies, but rather involve large and small fibers in a non-length-dependent fashion. Larger, prospective studies using the more sensitive QST as well as pathologic studies of nerve, including cutaneous innervation, are needed to further assess the characteristics and etiology of the neuropathy. PMID: 12929193 [PubMed - indexed for MEDLINE] Clin Exp Rheumatol. 1996 Nov-Dec;14(6):601-5. Peripheral nervous system involvement in systemic sclerosis: the median nerve as target structure. Lori S, Matucci-Cerinic M, Casale R, Generini S, Lombardi A, Pignone A, Scaletti C, Gangemi PF, Cagnoni M. Servizio di Neurofisiopatologia, USL 10, Florence, Italy. Abstract OBJECTIVES: To investigate the frequency and the main electrophysiological characteristics of the canalicolar passage nerve involvement in patients with systemic sclerosis (SSc). METHODS: Thirty-two SSc patients were enrolled in the study, classified according to the type (diffuse or limited) and the duration (> / < 5 years) of the disease. Sensory-motor nerve conduction studies (NCS) of the upper and lower limbs, in particular at the critical canalicolar points, were conducted by recording the Compound Muscular Action Potential (CMAP) and the Sensory Action Potential (sNAP). The following parameters were evaluated: Motor Nerve Conduction Velocity (MNCV) and Sensory Nerve Conduction Velocity; distal and proximal latency of the CMAP and the onset and peak latency of the sNAP; peak-peak amplitude and negativepeak area of the CMAP and sNAP; and the Terminal Latency Index (TLI) (Terminal Distance/MCNV x Distal latency). RESULTS: Four (12.5%) patients had a distal neuropathy of the upper limbs (one with monolateral and two with bilateral involvement of the median nerve and one bilateral involvement of the ulnar nerve). Fourteen (43.7%) patients showed a decrement of the median nerve TLI and seven (21.8%) of either the median or the ulnar nerve (Table I). Motor and sensitive conduction velocity and latency studies did not show a statistical difference between SSc patients and controls. The amplitude and area of the CMAP (distal and proximal), sNAP and of the median nerve TLI were significantly decreased in patients with respect to controls. CONCLUSION: Distal mononeuropathy of the median nerve was the most frequent result in our patients. The involvement of the peripheral nervous system seems to be strictly topographical, following the modifications of the tissues and vascular tone (Raynaud's phenomenon) at the upper acral level. The neurophysiological alterations detected in our study at the wrist level may not be linked merely to a compressive event but also to microvascular involvement. Nerve involvement closely connected with the pathogenesis and distribution of SSc should be considered when peripheral nervous system involvement is the initial symptom of the disease. PMID: 8978953 [PubMed - indexed for MEDLINE] Publication Types, MeSH Terms Publication Types: Clinical Trial Randomized Controlled Trial MeSH Terms: Adult Aged Aged, 80 and over Electrophysiology/methods Evoked Potentials, Motor Female Humans Male Median Nerve/physiopathology* Middle Aged Neural Conduction/physiology* Peripheral Nervous System Diseases/etiology* Peripheral Nervous System Diseases/physiopathology Psychomotor Performance/physiology* Scleroderma, Systemic/complications* Scleroderma, Systemic/physiopathology Ulnar Nerve/physiopathology LinkOut - more resources Q J Med. 1991 Aug;80(292):661-75. Peripheral nerve dysfunction in scleroderma. Schady W, Sheard A, Hassell A, Holt L, Jayson MI, Klimiuk P. Department of Neurology, University of Manchester, Manchester Royal Infirmary, Salford. Abstract Peripheral neuropathy in patients with scleroderma is thought to be rare. We have undertaken a quantitative assessment of peripheral nerve function in 29 patients with either limited cutaneous scleroderma or progressive systemic sclerosis. Tactile thresholds were raised in the fingers in 28 per cent of patients and in the foot in 50 per cent. Two-point discrimination was abnormal in 10 patients, thermal thresholds were abnormal in five and vibration thresholds were abnormal in one. Nerve conduction studies showed abnormalities in six patients, five of whom had clinical signs of a mild peripheral neuropathy: the mean duration of disease in these six patients was 10 years longer than that in the remainder of the patients. There was electrophysiological evidence of a subclinical carpal tunnel syndrome in two patients. The sympathetic skin response was recorded in 16 patients who had not been subjected to sympathectomy for Raynaud's phenomenon, and was abnormal in four. These results indicate that peripheral nerve dysfunction in scleroderma, though mild, is not as uncommon as previously thought. The abnormal cutaneous sensory thresholds may be partly due to altered viscoelastic properties of the skin, but abnormal responses in the lower limbs to tests of tactile sensitivity, the clinical findings and the disturbances of nerve conduction argue in favour of an additional neuropathic process in some patients. Low grade distal nerve trunk ischaemia may be responsible. Rheum Dis Clin North Am. 1996 Nov;22(4):879-92. The nervous system in systemic sclerosis (scleroderma). Clinical features and pathogenetic mechanisms. Cerinic MM, Generini S, Pignone A, Casale R. Institute of Internal Medicine IV, University of Florence, Italy. Abstract The involvement of the nervous system in SSc is well recognized today. Different pathogenetic mechanisms are suggested that may alternatively explain the multiform appearance of the clinical spectrum (mononeuritis, mononeuritis multiplex, carpal tunnel syndrome, and so forth). It is now clear that the ANS is the earliest structure targeted by the disease in the gastrointestinal tract. The importance of this observation has not yet been adequately interpreted but may, together with the increasing evidence of the nervous system involvement in SSc, become a leading factor in understanding of the importance of the nervous system in the onset, development, and maintenance of the disease. PMID: 8923601 [PubMed - indexed for MEDLINE] Publication Types, MeSH Terms Adv Exp Med Biol. 1999;455:73-83. Systemic sclerosis. A clinical overview. Generini S, Fiori G, Moggi Pignone A, Matucci Cerinic M, Cagnoni M. Department of Medicine, University of Florence, Italy. Abstract Systemic Sclerosis (SSc) is a multisystem disease that affects the skin and internal organs (i.e., gastrointestinal tract, lung, heart, kidney and peripheral nervous system). In the early phase, lung involvement is characterized by interstitial inflammatory alterations that are detected by bronchoalveolar lavage analysis and high resolution computed tomography (ground glass). As the disease progresses, fibrotic changes become evident and the diffusing capacity for carbon monoxide (DLCO) is impaired. Cardiac involvement in SSc can be manifested as myocardial disease, pericardial disease, conduction system disease, or arrhythmias. Cardiac involvement is a poor prognostic factor, but the diagnosis may be late or missing because of the frequent discrepancy between clinical manifestations and the real cardiac involvement. For this reason, resort to all the available diagnostic procedures is recommended to achieve an early diagnosis. The motility disorders are a major feature of gastrointestinal involvement in SSc, striking any part of this system (especially esophagus and anorectal region). Kidney involvement and scleroderma renal crisis are now considered rare because of the introduction of ACE inhibitors. Some patients may develop myositis or erosive arthropathy that complicate enormously the joint retraction induced by skin fibrosis. The peripheral nervous system (PNS) is also targeted by SSc: a distal mononeuropathy of the median nerve is a frequent and early feature; autonomic nerve dysfunction (parasympathetic impairment and marked sympathetic overactivity) seems to be a fundamental etiologic factor linked to the development of microvascular, cardiac and gastrointestinal alterations. The whole approach to the SSc patient is very complex and must consider, at the same time, many organs and systems. Thus, a global vision of SSc patient is needed in order to assure an early diagnosis of specific organ involvement as well as early treatment. Systemic Sclerosis (SSc) is a multisystem disease, that affects the skin, the gastrointestinal tract, the lung, the heart and the kidney. The extent and severity of internal organ involvement are the more important factors influencing the disease outcome and prognosis in SSc. In recent years, it has become evident that early diagnosis and accurate staging of visceral involvement are fundamental for appropriate management and therapeutic approach to the disease. Diagnostic procedures for specific organ and system involvement are now more sensitive because of the continuous technological improvement and, mostly, because they take advantage of the studies carried out in other diseases by other medical branches. This review will consider briefly the most frequent and important organ involvement in SSc. PMID: 10599326 [PubMed - indexed for MEDLINE] Publication Types, MeSH Terms Publication Types: Review MeSH Terms: Gastrointestinal Diseases/physiopathology Heart Diseases/physiopathology Humans Kidney Diseases/physiopathology Lung Diseases/physiopathology Musculoskeletal Diseases/physiopathology Nervous System Diseases/physiopathology Scleroderma, Systemic/physiopathology* LinkOut - more resources Scand J Rheumatol. 1999;28(4):260-1. Polyneuropathy as initial manifestation of systemic sclerosis (scleroderma). Knupp-Oliveira S, Cerinic MM. Department of Pediatrics, Universidade Federal do Rio de Janeiro, Brasil. Abstract We report the first case of a young female patient who developed a sensory-motor polyneuropathy, without any skin or internal involvement characteristic of SSc, but with a serological positivity of antitopoisomerase I antibodies. After 4 years she developed a rapid skin tightening with lung involvement, in a full blown picture of the diffuse subset of SSc. The case suggests that the peripheral nervous system deserves more attention, in particular in the earliest phase of SSc. PMID: 10503566 [PubMed - indexed for MEDLINE] Publication Types, MeSH Terms, Substances Publication Types: Case Reports Review MeSH Terms: Adult Autoantibodies/blood DNA Topoisomerases, Type I/immunology Diagnosis, Differential Female Humans Peripheral Nervous System Diseases/etiology* Peripheral Nervous System Diseases/physiopathology Scleroderma, Systemic/diagnosis* Scleroderma, Systemic/physiopathology Substances: Autoantibodies DNA Topoisomerases, Type I LinkOut - more resources Rev Neurol (Paris). 1989;145(3):236-8. [Sensory neuropathy of the trigeminal nerve and scleroderma] [Article in French] Fain O, Guillevin L, Giroux C, Gayraud M, Royer I. Service de Médecine Interne, Hôpital Avicenne, Bobigny. Abstract Sensory neuropathy of trigeminal nerve is one of the neurological complications of systemic diseases, particularly scleroderma. Three cases are reported in which onset occurred at different stages of the disease, the main symptom being painful dysesthesias. All three branches of the trigeminal nerve may be affected but a preference is apparent for V2 and V3. Signs are usually limited to hypoesthesia and the chronic course is influenced little by treatment. PMID: 2664978 [PubMed - indexed for MEDLINE] Publication Types, MeSH Terms Publication Types: Case Reports English Abstract Review MeSH Terms: Cranial Nerve Diseases/complications Cranial Nerve Diseases/physiopathology Electrophysiology Female Humans Middle Aged Scleroderma, Systemic/complications* Scleroderma, Systemic/diagnosis Scleroderma, Systemic/drug therapy Sensation* Trigeminal Nerve* LinkOut - more resources Dermatology. 1996;193(1):22-6. Progressive systemic sclerosis associated with multiple mononeuropathy. Nitta Y, Sobue G. Department of Dermatology, Aichi Medical University, Japan. Abstract BACKGROUND: Progressive systemic sclerosis (PSS) is a chronic connective tissue inflammatory disease which commonly attacks the skin and the visceral organs, but rarely the peripheral nervous system. OBJECTIVE: The aim of this study was to investigate PSS accompanied by peripheral neuropathy clinically, electrophysiologically and pathologically from a sural nerve biopsy. METHODS: Two women suffering from PSS but without any other collagen disease were studied. Both patients developed peripheral neuropathy with multiple mononeuropathy of the limbs, and in one woman, in the trunk as well. RESULTS: A biopsy of the sural nerve revealed axonal and myelin segmental degeneration, loss of large myelinated fibers and an increase of collagen fibers, but there was no evidence of vasculitis. An electron microscopic examination revealed degenerated axons, disrupted myelin sheaths and multilayered basal lamina in the capillaries. CONCLUSION: Mononeuropathy in PSS suggests that ischemic neuropathy may be related to the immune-mediated vasculopathy. PMID: 8864613 [PubMed - indexed for MEDLINE] Publication Types, MeSH Terms, Substances Publication Types: Case Reports Review MeSH Terms: Aged Anti-Inflammatory Agents/therapeutic use Axons/pathology Biopsy, Needle Electrophysiology Female Humans Middle Aged Peripheral Nervous System Diseases/complications Peripheral Nervous System Diseases/drug therapy Peripheral Nervous System Diseases/pathology* Prednisolone/therapeutic use Retrograde Degeneration*/immunology Scleroderma, Systemic/complications Scleroderma, Systemic/drug therapy Scleroderma, Systemic/pathology* Substances: Anti-Inflammatory Agents Prednisolone LinkOut - more resources