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Fulltext Trigeminal neuralgia, glossopharyngeal neuralgia, and myofascial pain dysfunction syndrome: an update

Khan M, Nishi SE, Hassan SN, Islam MA, Gan SH

Pain Res Manag, 2017;2017:7438326.
PMID: 28827979 DOI: 10.1155/2017/7438326

Neuropathic pain is a common phenomenon that affects millions of people worldwide. Maxillofacial structures consist of various tissues that receive frequent stimulation during food digestion. The unique functions (masticatory process and facial expression) of the maxillofacial structure require the exquisite organization of both the peripheral and central nervous systems. Neuralgia is painful paroxysmal disorder of the head-neck region characterized by some commonly shared features such as the unilateral pain, transience and recurrence of attacks, and superficial and shock-like pain at a trigger point. These types of pain can be experienced after nerve injury or as a part of diseases that affect peripheral and central nerve function, or they can be psychological. Since the trigeminal and glossopharyngeal nerves innervate the oral structure, trigeminal and glossopharyngeal neuralgia are the most common syndromes following myofascial pain dysfunction syndrome. Nevertheless, misdiagnoses are common. The aim of this review is to discuss the currently available diagnostic procedures and treatment options for trigeminal neuralgia, glossopharyngeal neuralgia, and myofascial pain dysfunction syndrome.

Matched MeSH terms: Fibromyalgia/diagnosis; Fibromyalgia/physiopathology*; Fibromyalgia/therapy
Fulltext Awareness and perceptions of fibromyalgia syndrome: a survey of Malaysian and Singaporean rheumatologists

Arshad A, Kong KO

Singapore Med J, 2007 Jan;48(1):25-30.
PMID: 17245512

INTRODUCTION: Fibromyalgia syndrome (FMS) is a common but controversial condition. There appears to be different levels of belief of its existence and awareness. We set out to explore the variations of perceptions and awareness of this condition among rheumatologists from Malaysia and Singapore.
METHODS: 48 rheumatologists from Malaysia (28) and Singapore (20) were approached to participate in this survey by answering a specific questionnaire regarding their belief in FMS. 23 respondents from Malaysia and 20 from Singapore completed the questionnaire.
RESULTS: 91 percent of Malaysian rheumatologists and 95 percent of the Singaporean believe that FMS is a distinct clinical entity and that this condition is considered an illness rather than a disease. 87 percent and 90 percent of rheumatologists from Malaysia and Singapore, respectively, believe that FMS is a mixture of medical and psychological illness. However, not many of those in the university setting include FMS in their undergraduate teaching. 87 percent and 80 percent of the respondents from Malaysia and Singapore, respectively, also ordered blood tests to exclude other serious pathologies, and 100 percent of the respondents from both countries also prescribed some form of drugs to their FMS patients.
CONCLUSION: This study confirmed that there was a variation of perceptions and knowledge of FMS among rheumatologists from Malaysia and Singapore. The majority of rheumatologists recognise that FMS is a distinct clinical entity, and is diagnosed by excluding other well-defined clinical diseases through a combination of clinical evaluation and screening tests.

Matched MeSH terms: Fibromyalgia/diagnosis*
Awareness and perceptions of fibromyalgia syndrome: a survey of Southeast Asian rheumatologists

Arshad A, Kong KO

J Clin Rheumatol, 2007 Apr;13(2):59-62.
PMID: 17414529 DOI: 10.1097/01.rhu.0000260494.29921.9e

BACKGROUND: Fibromyalgia syndrome (FMS) is a common but controversial condition. There appears to be different level of belief of its existence and awareness. We set out to explore the variations of perceptions and awareness of this condition among rheumatologists from the Southeast Asia (SEA) region.
METHODS: One hundred eight rheumatologists from the participating countries; 28 from Malaysia, 20 from Singapore, 26 from Thailand, 2 from Brunei, and 42 from Indonesia were approached to participate in this survey by answering specific questions regarding their beliefs in relation to FMS; 82% respondents from Malaysia, 100% from Singapore, 92% from Thailand, 100% from Brunei, and 90% from Indonesia completed the questionnaires.
RESULTS: Most rheumatologists (92.5%) from SEA believe that FMS is a distinct clinical entity, and also this condition is considered an illness rather than a disease. Eighty-seven percent rheumatologists from SEA believe that FMS is a mixture of medical and psychological illness, 9% believe that FMS is primarily a psychological illness, and 3% believe that it is a medical illness. Only 60% of those in a university setting include FMS in their undergraduate teaching. Eighty-five percent of the respondents ordered blood tests to exclude other serious pathologic conditions, and 100% of the respondents from SEA countries also prescribed some form of drugs to FMS patients.
CONCLUSION: FMS is apparently seen worldwide. This study confirmed that there was a variation of perceptions and knowledge of FMS among rheumatologists from SEA countries. However, most rheumatologists agreed that FMS is a distinct clinical entity with a mixture of medical and psychological factors.

Matched MeSH terms: Fibromyalgia/diagnosis*; Fibromyalgia/drug therapy
Characterization of fibromyalgia using sleep EEG signals with nonlinear dynamical features

Paul JK, Iype T, R D, Hagiwara Y, Koh JW, Acharya UR

Comput Biol Med, 2019 08;111:103331.
PMID: 31284155 DOI: 10.1016/j.compbiomed.2019.103331

Fibromyalgia is an intense musculoskeletal pain causing sleep, fatigue, and mood problems. Sleep studies have suggested that 70%-80% of fibromyalgia patients complain of non-restorative sleep. The abnormalities in sleep have been implicated as both a cause and effect of the disease. In this paper, the electroencephalogram (EEG) signals of sleep stages 2 and 3 are used to classify the normal and fibromyalgia classes automatically. We have used various nonlinear parameters, namely sample entropy (SampEn), fractal dimension (FD), higher order spectra (HOS), largest Lyapunov exponent (LLE), Kolmogorov complexity (KC), Hurst exponent (HE), energy, and power in various frequency bands from the EEG signals. Then these features are subjected to Student's t-test to select the clinically significant features, and are classified using the support vector machine (SVM) classifier. Our proposed method can classify normal and fibromyalgia subjects using the stage 2 sleep EEG signals with an accuracy of 96.15%, sensitivity and specificity of 96.88% and 95.65%, respectively. Performance of the developed system can be improved further by adding more subjects in each class, and can be employed for clinical use.

Matched MeSH terms: Fibromyalgia/diagnosis*; Fibromyalgia/physiopathology
Fulltext Atraumatic trismus induced by duloxetine: an uncommon presentation of acute dystonia

Ohn MH, Loo JL, Ohn KM

BMJ Case Rep, 2021 Feb 04;14(2).
PMID: 33542006 DOI: 10.1136/bcr-2020-237065

Atraumatic trismus can be one of the presentations of medication-induced acute dystonia, particularly by antipsychotics and less commonly antidepressants. A case of an unusual emergency presentation of atraumatic trismus on initiation of duloxetine is reported. The patient was a 40-year-old woman experiencing sudden difficulty in mouth opening and speaking due to a stiffened jaw after taking 5 days of duloxetine prescribed for her fibromyalgia-related chest pain. Assessment of vital signs is prudent to ensure there is no laryngeal involvement. Other physical examinations and her recent investigations were unremarkable. She was treated for acute dystonia and intravenous procyclidine was given together with oral diazepam. Her symptoms improved immediately and her duloxetine was suggested to be stopped. To our knowledge, this is the first case of isolated trismus induced by duloxetine. Clinicians should be aware of this risk, especially considering the limitation of important physiological functions (such as swallowing, eating, etc) associated with this condition.

Matched MeSH terms: Fibromyalgia/drug therapy*
Fulltext Musculoskeletal pain in Malaysia: a COPCORD survey

Veerapen K, Wigley RD, Valkenburg H

J Rheumatol, 2007 Jan;34(1):207-13.
PMID: 17216688

Objective. To assess the nature and extent of rheumatic complaints in a semirural area in a multiracial (Malay, Indian, Chinese) community in Malaysia using the Community Oriented Program for the Control of Rheumatic Diseases (COPCORD) protocol initiated by ILAR and the WHO.
Methods. All members of a community of 2700 persons over the age of 15 years were offered a questionnaire based interview in Phase 1 of the study. Those with rheumatic complaints (pain in the last 1 week) were invited for a physical examination by a rheumatologist in Phase 2.
Results. In total, 2594 (96%) persons agreed to a questionnaire based interview. Of those interviewed, 21.1% had a current rheumatic complaint. The pain rate was higher in women (23.8%) than in men (17.8%). Chinese men had the lowest age-standardized pain rate (9.9%), while Indian women had the highest rate (28.4%). In the study population, 14.4% complained of pain in the joints and/or musculoskeletal pain and 11.6% had low back pain. The knee was responsible for 64.8% of all complaints pertaining to the joints, and more than half those examined with knee pain had clinical evidence of osteoarthritis (OA). The complaint rate increased with age, up to 53.4% in the group age > 65 years. The major disability encountered was the inability to squat (3.1%). Fibromyalgia, soft tissue lesions, and localized OA of the knees were the main clinical diagnoses. Inflammatory arthritis was uncommon. Both Western and traditional sources of healthcare were used, often together. Self-medication was common (58.8%).
Conclusion. Knee and back pain are the main rheumatic complaints in Malaysia, with complaint rates differing according to race and gender.

Matched MeSH terms: Fibromyalgia/ethnology; Fibromyalgia/epidemiology
Fulltext Scalene myofascial pain syndrome mimicking cervical disc prolapse: a report of two cases

Abd Jalil N, Awang MS, Omar M

Malays J Med Sci, 2010 Jan;17(1):60-6.
PMID: 22135529 MyJurnal

Scalene myofascial pain syndrome is a regional pain syndrome wherein pain originates over the neck area and radiates down to the arm. This condition may present as primary or secondary to underlying cervical pathology. Although scalene myofascial pain syndrome is a well known medical entity, it is often misdiagnosed as being some other neck pain associated with radiculopathy, such as cervical disc prolapse, cervical spinal stenosis and thoracic outlet syndrome. Because scalene myofascial pain syndrome mimics cervical radiculopathy, this condition often leads to mismanagement, which can, in turn, result in persistent pain and suffering. In the worst-case scenarios, patients may be subjected to unjustifiable surgical intervention. Because the clinical findings in scalene myofascial pain syndrome are "pathognomonic", clinicians should be aware of ways to recognize this disorder and be able to differentiate it from other conditions that present with neck pain and rediculopathy. We present two cases of unilateral scalene myofascial pain syndrome that significantly impaired the patients' functioning and quality of life. This case report serves to create awareness about the existence of the syndrome and to highlight the potential morbidity due to clinical misdiagnosis.

Matched MeSH terms: Fibromyalgia
Epidemiology of rheumatoid arthritis, clinical aspects and socio-economic determinants in Pakistani patients: A systematic review and meta-analysis

Naqvi AA, Hassali MA, Aftab MT

J Pak Med Assoc, 2019 Mar;69(3):389-398.
PMID: 30890833

OBJECTIVE: The study aimed to evaluate literature on rheumatoid arthritis disease in Pakistani patients, to have an understanding about its epidemiology, clinical aspects and socio-economic determinants.
METHODS: The review study was conducted from December 2017, to May 2018. An online search was conducted in international and local health databases using appropriate search keywords as well as scanning reference lists of related articles. Literature published after year 2000 that reported epidemiological, demographic, clinical and socioeconomic data of Pakistani rheumatoid arthritis patients was included. Meta-analysis was performed where possible. This systematic review was registered on the international prospective register of systematic reviews PROSPERO (CRD42018090582).
RESULTS: Of the 334 research articles found, 29 (8.7%) were selected. Patients were mostly females, but no study explored impact of disease on household and family role functioning of rheumatoid arthritis-affected women in Pakistan. Most patients were uneducated (55%) and unemployed; had low disease knowledge (N = 149, 74.5%) and poor adherence to disease-modifying anti-rheumatic drugs (N = 23, 23%). Point prevalence of rheumatoid arthritis reported from Karachi was high at 26.9%. Moderate disease activity, i.e., 4.5}0.7 and mild functional disability (N = 66, 51.6%) were seen in RA patients. Almost half (N = 799, 46.9%) had comorbidities. Almost a fifth proportion of RA patients had dyslipidaemia as a comorbidity (N = 134, 16.77%) and higher cardiovascular risk score as modifiable risk factor. Undiagnosed depression (N = 134, 58.3%) and low bone mineral density (N = 93, 40.6%) were reported in RA patients. Direct monthly treatment cost of disease was significantly high considering patients' socio-economic status, i.e., USD 16.47 - 100.68. Most commonly used drug was methotrexate.
CONCLUSIONS: There is a paucity of data on Pakistani rheumatoid arthritis patients' demographic and socio-economic parameters, especially the gender element.

Matched MeSH terms: Fibromyalgia/epidemiology
Rheumatic diseases in the APLAR region

Davatchi F

APLAR Journal of Rheumatology, 2006;9(1):5-10.
DOI: 10.1111/j.1479-8077.2006.00177.x
Matched MeSH terms: Fibromyalgia