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Abstract Background Internet reviews have become increasingly crucial for both healthcare providers and patients. Electronic word-of-mouth (eWOM) reviews on internet sites often comprise textual content with numerical ratings. In this study, we aimed to identify the evaluation factors of community healthcare institutions regarding eWOM reviews and the impact of each evaluation factor on the institution’s ratings. Methods An observational study was conducted to qualitatively and quantitatively analyse eWOM data posted on Google for randomly selected healthcare institutions in Hirosaki, Japan from September to October 2022. For qualitative data, the authors repeatedly read the eWOM text, coded it, and categorised related sections. For quantitative analysis, a multivariate analysis using a linear regression model was conducted with the categorised factors from the qualitative analysis as explanatory variables and eWOM ratings as response variables. Results Twenty medical institutions (two hospitals and 18 clinics) were randomly extracted from the registry. A total of 147 eWOM texts from each institution were analysed, and coding was performed for 474 segments in the texts. In the qualitative analysis, the evaluated factors in eWOM texts for medical institutions were categorised as communication (evaluation factor for communication with healthcare providers), clinical practice (evaluation factor for the clinical practice of healthcare providers), and medical institution (evaluation factor for the characteristics of medical institutions). According to the multiple regression analysis, the partial regression coefficients for the explanatory variables of positive communication, clinical practice, and medical institution evaluations were 1.04 (95% confidence interval 0.70 to 1.39), 0.65 (95% confidence interval 0.27 to 1.04), and 0.75 (95% confidence interval 0.35 to 1.15), respectively, with the number of ratings as the response variable. Partial regression coefficients for the explanatory variables of negative communication, clinical practice, and medical institution evaluations were − 1.52 (95% confidence interval − 1.88 to -1.16), -0.90 (95% confidence interval − 1.28 to -0.52), and − 0.24 (95% confidence interval − 0.60 to 0.12), respectively. Conclusion We quantitatively and qualitatively analysed the eWOM reviews and ratings of healthcare institutions posted on Google. Three evaluation factors were identified: communication, clinical practice, and medical institution. Our study revealed that communication significantly impacts ratings.

Hemiplegic migraine is a rare form of migraine characterized by aura with unilateral paralysis; however, studies on its treatment are limited. A 39-year-old man with migraine headaches and myofascial pain syndrome was referred to our hospital with transient right hemiplegia, after presenting to an outside emergency department with headache and right hemiplegia 2 days prior. Computed tomography, magnetic resonance imaging, and blood test results revealed no abnormalities. The symptoms resolved spontaneously; he was referred to our hospital. Based on the International Classification of Headache Disorders, Third Edition criteria, he was diagnosed with sporadic hemiplegic migraine. Propranolol was added to his regular regimen as prophylactic treatment, which resulted in reduction in his migraine frequency. Over the next 2 years, no recurrent paralysis occurred. Hemiplegic migraines should be considered in patients with migraine exhibiting transient hemiplegia without obvious intracranial abnormalities. Prophylactic treatment with propranolol could be effective in treatment of hemiplegic migraine.

A 53-year-old otherwise healthy man was referred to our hospital with a fever of unknown origin, headache, and arthralgia. Four days earlier, he had a fever with chills. Treatment with antibiotics and acetaminophen proved ineffective, with the patient subsequently developing headache and joint pain. Blood analysis revealed elevated inflammatory markers, liver impairment, and severe thrombocytopenia (platelet count, 19,000/μL). Subsequent tests revealed elevated levels of anti-cytomegalovirus IgM and IgG. Based on these findings, the patient was diagnosed with severe thrombocytopenia associated with cytomegalovirus infection. Platelet counts increased spontaneously without antiviral therapy. Forty-five days after the initial visit, the symptoms improved, and blood tests revealed resolution of the inflammatory findings, with the platelet count recovering to 155,000/μL. Although the disease may resolve spontaneously, cytomegalovirus infection should be considered as a differential diagnosis in case of severe thrombocytopenia in immunocompetent adults.

A 51-year-old otherwise healthy woman was referred to our hospital with a fever of unknown origin, liver dysfunction, and anemia. One month prior, she had persistent and spontaneous anterior neck pain, with no exacerbation during swallowing or neck movements. Physical examination revealed no pharyngeal or tonsillar abnormalities, heart murmur, arthritis, skin rash, or lymphadenopathy, except for mild bilateral common carotid artery tenderness at the level of the thyroid cartilage. Blood tests showed nonspecific chronic inflammatory findings, anemia, and liver damage, whereas blood cultures, viral antibodies, interferon-γ release assay, and antibodies specific for any collagen disease showed negative results. Echocardiography and computed tomography without contrast of the neck, chest, abdomen, and pelvis showed no apparent abnormalities. She was subsequently diagnosed with Takayasu arteritis using positron emission tomography. Identifying a characteristic history of bilateral carotid artery tenderness and subsequent positron emission tomography can be useful for diagnosing Takayasu arteritis.

Introduction Children’s influenza diagnosis by their guardians has been reported to be highly accurate, but clinical factors that improve the reliability of a guardian’s diagnosis are unclear. Aim To determine the accuracy of guardians’ influenza diagnosis of their children, investigate clinical factors that improve the diagnostic accuracy, and determine the additional clinical value of the guardian’s diagnosis. Methods A prospective observational study was conducted at a primary care clinic in Japan from December 2017 to April 2019. Pre-examination checklists completed by guardians accompanying children aged

Abstract A 30‐year‐old man was referred to our department because of repeated acute‐onset and short‐lasting fatigue attacks, which occurred from 3 months before the referral. He had no abnormal findings in blood tests, electrocardiogram (including 24‐ h monitoring), or head MRI (including angiography). His vital signs were unremarkable, and his physical examination revealed no abnormal findings. Detailed history‐taking with closed‐ended questions revealed the occurrence of tingling sensation from the right fingers as the aura before his attacks. Electroencephalography was performed, which revealed focal epilepsy. Levetiracetam resolved his symptoms. Physicians could consider non‐convulsive epilepsy as a potential cause of repeated acute‐onset and short‐lasting fatigue attacks of unknown etiology after underlying conditions, such as metabolic diseases, have been ruled out.

A 33-year-old man was referred to our hospital with chief complaints of fever, dizziness, and headache. Although he had recurring fever and dizziness for 7 months, neurological examination, magnetic resonance imaging, computed tomography, electrocardiograms, and blood tests were normal. He was diagnosed with functional hyperthermia, cervical vertigo, and tension headache and was treated with oral medication and physical therapy. After treatment, the dizziness and headache resolved; however, the fever and anxiety did not. During follow-up, he noticed differing results from different electronic thermometers. The physician decided to use an accurate analog thermometer, a gallium thermometer, in combination with the other thermometers. The results differed significantly among the thermometers, and the electronic thermometer readings were found to be inappropriately high. The physician made a diagnosis of pseudo-fever, and the patient recognized that the gallium thermometer’s results were the most accurate reflection of his physical condition, resolving his anxiety.

Abstract A 17‐year‐old female patient presented to our hospital with repeated transient loss of consciousness lasting less than 10 min. After regaining consciousness, she experienced no disorientation, confusion, tongue‐biting, or incontinence. Physical findings, blood tests, electrocardiogram, and echocardiogram showed no obvious abnormalities. On being asked whether she had experienced sudden rapid body movements, she answered “yes.” Therefore, we suspected juvenile myoclonic epilepsy (JME) and obtained an electroencephalogram, which showed diffuse bilateral bursts of spike‐and‐wave complexes, confirming the diagnosis. In adolescent patients with transient loss of consciousness, myoclonic jerks should be actively confirmed for the diagnosis of JME.

Abstract Raynaud's phenomenon, induced by cold stimulation and emotional stress, is also induced by whole‐body warm stimulation. A 74‐year‐old man was referred to our department because of nocturnal toe pain from 2 years prior and immediate color change of the toes from 1 year prior when submerging himself into a warm bath. Physical examination and blood tests revealed no abnormal findings suggestive of secondary Raynaud's phenomenon. Two years later, the signs and symptoms persisted. When physicians confirm Reynaud's phenomenon, they should check for the possibility of secondary Reynaud's phenomenon. Additional research on Reynaud's phenomenon induced by warm stimulation is needed.

A 47-year-old farm worker with diabetes mellitus, dyslipidemia, and hyperuricemia was referred to our hospital for a 3-month history of fever and malaise. He had no respiratory tract or abdominal symptoms, skin rashes, or joint pain. There was no change to his regular medication or pesticide exposure. Blood tests and echocardiography revealed no abnormalities. Whole-body computed tomography revealed a fatty liver; however, non-alcoholic steatohepatitis was excluded. We diagnosed the patient with functional hyperthermia. He had a history of snoring and weight gain, and we suspected the obstructive sleep apnea syndrome to be a stressor. Polysomnography revealed severe obstructive sleep apnea syndrome with an apnea–hypopnea index of 44.5. Continuous positive airway pressure was introduced; the axillary temperature decreased gradually and malaise was resolved. Functional hyperthermia should be considered a cause of fever with a negative inflammatory response. Obstructive sleep apnea syndrome can be a stressor for functional hyperthermia, which can be improved by interventions.

Objective To elucidate the diagnostic accuracy of pretest probability of influenza (%) by physicians and the factors affecting the clinical diagnosis.Design Retrospective, single-centre observational study.Setting A community primary care clinic in Japan.Participants The participants were recruited from a database of studies conducted during the influenza season from December 2017 to April 2019.Primary outcome measure Sensitivity and specificity of the physician’s clinical diagnosis of influenza recorded in the medical record as pretest probability.Results A total of 335 patients (median age, 31 years; male, 66.6%) were analysed in this study. The area under the curve (AUC) of the physician’s pretest probability was 0.77. At a cut-off value of 30%, the sensitivity and negative likelihood ratio were 92.0% (95% CI 86.7 to 95.7) and 0.19 (95% CI 0.11 to 0.33), respectively. At a cut-off value of 80%, the specificity and positive likelihood ratio were 90.8% (95% CI 85.4 to 94.6) and 4.01 (95% CI 2.41 to 6.66), respectively. The AUCs of patients who had and had not taken any medications before visiting the clinic were 0.77 (95% CI 0.69 to 0.85) and 0.78 (95% CI 0.71 to 0.84), respectively. The AUCs of patients with type A and B influenza were 0.78 (95% CI 0.72 to 0.84) and 0.76 (95% CI 0.70 to 0.82), respectively. The AUCs of vaccinated and unvaccinated patients were 0.80 (95% CI 0.72 to 0.88) and 0.76 (95% CI 0.63 to 0.89), respectively. The AUC for patients less than 12 hours after onset was 0.69 (95% CI 0.51 to 0.88), and that for patients aged younger than 6 years was 0.69 (95% CI 0.49 to 0.88).Conclusions The physician’s pretest probability of influenza (%) may be useful for both definitive and exclusionary diagnoses within the limits of our study.

Abstract Background Acute hip pain caused by femoral proximal fractures or acute hip arthritis requires imaging for accurate diagnosis. Although pocket-sized ultrasound (PsUS) offers several advantages over other imaging modalities, there is limited information regarding its use in diagnosing femoral proximal fractures or acute hip arthritis. Thus, we aimed to validate the diagnostic accuracy of PsUS for both disorders. Methods In this prospective observational study, outpatients with acute hip pain were diagnosed according to a fixed procedure of the PsUS probe handling. We verified the diagnostic accuracy of PsUS findings (cortical discontinuity and joint fluid retention) and compared it with that of radiography, computed tomography, and magnetic resonance imaging. Results Our study included 52 outpatients (mean age, 78.0 years; female, 88.5%). Of 26 patients diagnosed with femoral proximal fractures, 14 had femoral neck fractures and 12 had femoral trochanteric fractures. The sensitivity and specificity for identifying cortical discontinuity in femoral proximal fractures were 0.96 and 0.92, respectively. The sensitivity for identifying either cortical discontinuity or joint fluid retention in femoral proximal fractures or acute hip arthritis was 0.97. Conclusions Negative PsUS findings of cortical discontinuity and joint fluid retention in the hip are useful for ruling out femoral proximal fractures and acute hip arthritis. PsUS and radiography have comparable diagnostic accuracies, and PsUS could aid in the initial assessment of acute hip pain among the elderly in primary care settings.

Abstract A 35‐year‐old woman presented with recurrent vertigo without headache, which had persisted for 10 years. Detailed medical history revealed that she experienced hearing loss, tinnitus, nausea, photophobia, phonophobia, and slight discomfort in the head during vertigo attacks, which often led to absence from work. Based on the diagnostic criteria of the International Classification of Headache Disorders, third edition, she was diagnosed with vestibular migraine and was prescribed lomerizine, as prophylaxis. Her symptoms markedly improved, enabling her to go to work. Accurate diagnosis and treatment are important for improving the quality of life of patients, since vestibular migraine is commonly underdiagnosed.

A 54-year-old man was referred to our hospital with painful rashes on the extremities. He also developed polyarthritis and pitting pedal edema. Blood tests showed no specific autoantibodies and were negative for human leukocyte antigens B51, B15, and B27. Lower extremity venous ultrasonography and computed tomography angiography showed no vascular disorders. Skin biopsy showed no evidence of thrombosis or vasculitis. Direct fluorescence antibody analysis showed no antibody or complement deposition. Joint ultrasonography showed mild synovial thickening and/or synovial effusion in the extremities. Non-steroidal anti-inflammatory drugs and topical steroids were administered, followed by oral steroids. However, the signs and symptoms did not improve. Oral steroids were discontinued, and colchicine (0.5 mg/day) was administered. Thereafter, the symptoms of arthritis improved, and no skin rash developed. In potentially inflammatory conditions with skin rash, edema, and polyarthritis that are difficult to diagnose, low-dose colchicine administration may be considered for prompt relief of symptoms.

To elucidate the accuracy and optimal cut-off point of self-diagnosis and clinical symptoms of seasonal influenza compared with rapid influenza diagnostic tests as the reference standard, we conducted a cross sectional observational study at a rural clinic in Japan.Data during three influenza seasons (December 2013 to April 2016) were retrospectively collected from the medical records and pre-examination sheets of 111 patients aged >11 years (mean age 48.1 years, men 53.2%) who were suspected of influenza infection and underwent rapid influenza diagnostic testing. Patients' characteristics (age, sex, and past medical history of influenza infection), clinical signs (axillary temperature, pulse rate, cough, joint and muscle pain, and history of fever [acute or sudden, gradual, and absence of fever]), duration from the onset of symptoms, severity of feeling sick compared with a common cold (severe, similar, and mild), self-reported likelihood of influenza (%), and results of rapid influenza diagnostic tests.At the optimal cut-off point (30%) for estimation of self-diagnosis of seasonal influenza, the positive likelihood ratio (LR+) was 1.46 (95% confidence interval 1.07 to 2.00) and negative likelihood ratio (LR-) was 0.57 (0.35 to 0.93). At a 10% cut-off point, LR-was 0.33 (0.12 to 0.96). At an 80% cut-off point, LR+ was 2.75 (0.75 to 10.07). As for clinical signs, the combination of acute or sudden onset fever and cough had LR+ of 3.27 (1.68 to 6.35). Absence of cough showed LR-of 0.15 (0.04 to 0.61).Self-diagnosis of influenza using the optimal cut-off point (30%) was not found useful for ruling in or ruling out an influenza diagnosis. However, it could be useful when patients self-report extremely high (80%) or low (10%) probability of having influenza. Clinically useful signs were the combination of history of fever and cough, and absence of cough.

Introduction. Children’s influenza diagnosis by their guardians has been reported to be highly accurate, but clinical factors that improve the reliability of a guardian’s diagnosis are unclear. Aim. To determine the accuracy of guardians’ influenza diagnosis of their children, investigate clinical factors that improve the diagnostic accuracy, and determine the additional clinical value of the guardian’s diagnosis. Methods. A prospective observational study was conducted at a primary care clinic in Japan from December 2017 to April 2019. Pre-examination checklists completed by guardians accompanying children aged <12 years with clinically suspected influenza were analysed. Receiver-operating characteristic curve analysis was performed to evaluate the diagnostic accuracy at multiple cut-off points and to compare the area under the curve (AUC), using a rapid influenza diagnostic test as the reference standard. Multivariable logistic regression was performed to validate additional contribution of guardians’ diagnosis. Results. A total of 112 patient pairs of child (median age, 6 years) and guardian (mother, 81.2%; father, 16.1%; grandmother, 1.8%; other, 0.9%) were included in the analysis. The AUC for guardians’ influenza diagnosis was higher in mothers (0.72), as well as pairs with children with a history of influenza (0.72), guardians who were aware of the influenza epidemic (0.71), and unvaccinated children (0.76), than in other guardians. After multivariate analysis, the AUC increased significantly from 0.79 to 0.85. Discussion. Guardians’ influenza diagnosis for their children was highly accurate. We identified factors that improve the accuracy of the guardians’ diagnosis and demonstrated that the guardians’ diagnosis can support physicians’ diagnostic accuracy. [ABSTRACT FROM AUTHOR]