Common symptoms in ambulatory care: incidence, evaluation, therapy, and outcome

Alzheimer disease seen through the lens of sex and gender

Alzheimer disease (AD) is a life-limiting neurodegenerative disorder that disproportionately affects women. Indeed, sex and gender are emerging as crucial modifiers of diagnostic and therapeutic pathways in AD. This Review provides an overview of the interactions of sex and gender with important developments in AD and offers insights into priorities for future research to facilitate the development and implementation of personalized approaches in the shifting paradigm of AD care. In particular, this Review focuses on the influence of sex and gender on important advances in the treatment and diagnosis of AD, including disease-modifying therapies, fluid-based biomarkers, cognitive assessment tools and multidomain lifestyle interventional studies.

The Diagnosis and Management of Patients With Findings Consistent With a Breast Implant Associated-Somatic Symptom Disorder (BIA-SSD)

Background

Psychological factors seem to play a significant role in the perception and magnification of somatic symptoms in patients with breast implant illness (BII). Further, recent studies have shown that some patients with self-reported BII have findings consistent with a breast implant-associated somatic symptom disorder (BIA-SSD). The aim of this work was to provide guidelines for the diagnosis and treatment of BIA-SSD.

Methods

Findings from the current literature combined with both surgical and psychological therapeutic principles were used to develop methods for diagnosing and managing patients with BIA-SSD.

Results

Algorithms for the diagnosis of SSD associated with breast implants, as well as treatment options, are presented so that plastic surgeons can identify, counsel, diagnose, and offer treatment to patients with BII and findings consistent with BIA-SSD.

Conclusions

Plastic surgeons are in a unique position to identify self-reported BII patients with signs of BIA-SSD and offer help in navigating treatment options. In addition to providing information to patients about somatic symptoms and breast implants, surgeons should refer patients for a medical workup to rule out medical causes of symptoms. For patients with symptoms and a desire to maintain breast implants, referral to a qualified mental health professional trained in SSD therapy may be beneficial. For patients desiring removal of their implants for BII symptoms, explantation with the most conservative possible procedure is recommended.

Parasite load as a marker of pathogenicity in Dientamoeba fragilis infections

Dientamoeba fragilis is a globally widespread intestinal parasite and one of the most frequent in humans, often leading to primary care consultations. The pathogenic potential of this parasite remains unclear due to limited evidence and contradictory study results. This study investigated the pathogenicity of D fragilis, focusing on the critical knowledge gap regarding the relationship between parasite load and associated symptomatology. A prospective case-control study matched by household unit was conducted, considering individuals with gastrointestinal symptoms and D fragilis in stool as cases, and their asymptomatic household members with D fragilis in stools as controls. D fragilis detection was performed in parallel using light microscopy and real time-polymerase chain reaction. The study was carried out in 7 primary care centers over 12 months. Parasite load was measured as the number of trophozoites per field at a magnification of 40x by microscopy and by cycle threshold values in RT-PCR. A total of 218 individuals were recruited: 74 symptomatic cases and 144 household members, of whom 57 (39.6%) were D fragilis-positive asymptomatic controls. The proportion of individuals with D fragilis and a parasite load less than 1 trophozoite per field was higher in asymptomatic individuals (controls) than in symptomatic cases (47.7% vs 3.1%, respectively) (P < .001). Parasite load is associated with the presence of gastrointestinal symptoms, supporting the pathogenicity of D fragilis. Any diagnostic approach for D fragilis should incorporate or be complemented by quantitative information to accurately estimate parasite load and enhance treatment decision-making.

Chronic Dizziness and Positional Symptoms: An Exploration of Symptom Clusters and Participant-Reported Experiences

PURPOSE

This mixed-methods design (a) quantitatively describes the symptom cluster assignments of patients with chronic dizziness who completed a dizziness triage questionnaire and (b) qualitatively explains patient-reported themes associated with the most frequently assigned symptom cluster.

METHOD

A retrospective hybrid explanatory mixed-methods design was implemented to examine an artificial intelligence dizziness triage questionnaire posted online in a vestibular disorders support group from June 2021 to November 2022. Symptom cluster assignments are described in 791 participants. In the qualitative analysis, emerging codes were identified in the dominant symptom cluster in 50 participants.

RESULTS

Quantitative analysis identified a total of 301 symptom cluster combinations. The analysis from 791 participants revealed that females exhibited more symptom clusters than males, age impacted symptoms inversely, and longer duration of symptom history exhibited more symptom clusters. "Positional" was the most common symptom cluster among 50 participants. Of those 50, six major themes emerged from the data: (a) physical symptoms, (b) cognitive symptoms, (c) triggers, (d) temporal information, (e) management, and (f) emotions.

CONCLUSIONS

The results from this study emphasize the complexity and variability of chronic dizziness. Comprehensive patient assessments that combine questionnaires with clinical expertise and patient dialogue are needed to improve diagnosis and management.

Childhood Maltreatment and Somatic Symptoms in Adulthood: Establishing a New Research Pathway

BACKGROUND

Somatic symptoms, such as chronic pain, fatigue, and gastrointestinal disturbances, are commonly reported in individuals with a history of childhood maltreatment (CM), which includes various forms of abuse and neglect experienced before age 18. Although CM is strongly associated with somatic symptoms, the specific relationships between CM subtypes and these symptoms, as well as the mechanisms connecting them, remain insufficiently understood. This review examines the complex interaction between CM and somatic symptoms, which often coexist with mental disorders and significantly impact quality of life and healthcare systems.

SUMMARY

Somatic symptoms, frequently a mix of "explained" and "unexplained" conditions, are associated with personal distress and pose diagnostic challenges. CM has been linked to these symptoms through neurobiological mechanisms, such as HPA axis dysregulation and allostatic load, while theoretical models emphasize the roles of hyperawareness, cultural factors, and vulnerability in symptom development. However, existing research often fails to account for specific CM subtypes, the full range of somatic symptoms, and cultural and situational factors, leading to inconsistencies in findings.

KEY MESSAGES

Bridging gaps in literature requires adopting the World Health Organization's CM subtype definitions and ICD-11 codes (MA00-MH2Y) to encompass a broader spectrum of somatic symptoms. Employing rigorous methodologies, such as systematic reviews and meta-analyses, is essential for advancing understanding. These approaches can enhance diagnostic accuracy, support tailored interventions, and promote a biopsychosocial framework for CM research, ultimately improving patient outcomes and alleviating societal burdens.

Healthcare Utilization and Costs in Patients With Somatic Symptom and Related Disorders Compared With Those With Depression and Healthy Controls: A Nationwide Cohort Study

Introduction: Patients with somatic symptom and related disorders (SSRDs) often face diagnostic delays, leading to frustration, unnecessary medical procedures, and excessive costs. This study examines healthcare utilization and costs in the 3 years before diagnosing SSRDs, comparing them to patients with depressive disorders and individuals with no mental disorder using data from the Korean National Health Insurance claims database. The analysis also addresses the influence of medical comorbidities by focusing on patients without them. Methods: Utilizing Korean nationwide medical claims database covering all South Koreans, we identified individuals aged 15-64 diagnosed with SSRDs between 2015 and 2019. A corresponding group diagnosed with depression served as controls for nonpsychotic mental disorders. We analyzed medical costs and healthcare utilization comparing the SSRDs group to the depression group and the group with no mental disorder using nonparametric tests, including a specific analysis for those with a Charlson Comorbidity Index (CCI) of zero. Results: The study encompassed 84,223 SSRD patients, 336,919 with depressive disorders, and 269,444 individuals with no mental disorder. Patients with SSRDs had significantly higher healthcare costs and made more frequent use of outpatient and emergency services than both control groups, a pattern consistent even in patients without medical comorbidities. Conclusion: This large nationwide cohort study confirmed that patients with SSRDs frequently used the healthcare system and incurred considerable costs before their diagnosis. The findings suggest that plans for early recognition and intervention, along with mental health support for this population, are urgently needed to assist them and improve the efficiency of the healthcare system.

Healthcare Costs due to Dizziness/Vertigo in Korea: Analyses Using the Public Data of Health Insurance Review & Assessment Service

BACKGROUND

Dizziness/vertigo is one of the most common symptoms for which people seek healthcare. However, the healthcare expenditure attributable to dizziness/vertigo in South Korea remains poorly understood. We investigated the healthcare costs due to six major disorders causing dizziness/vertigo using claims data.

METHODS

The healthcare costs were evaluated using all the claims data submitted to the Health Insurance Review and Assessment Service from January 1 to December 31, 2022. The six major vestibular disorders included for analysis were benign paroxysmal positional vertigo (BPPV), psychogenic/persistent postural perceptual dizziness (PPPD), vascular vertigo/dizziness (VVD), vestibular migraine (VM), Meniere's disease (MD), and vestibular neuritis (VN).

RESULTS

During the 1-year study period, 4.1% of adults aged 20 or older visited hospitals due to dizziness/vertigo in South Korea. Compared to the general population, the patients with dizziness/vertigo were more often elderly, female, and residents of small towns. The total healthcare cost for the six major vestibular disorders was ₩547.8 billion (approximately $406.5 million). BPPV incurred the highest annual healthcare cost (₩183.5 billion, 33.5%), followed by VVD (₩158.8 billion, 29.0%), MD (₩82.2 billion, 15.0%), psychogenic/PPPD (₩60.3 billion, 11.0%), VN (₩32.9 billion, 6.0%), and VM (₩30.1 billion, 5.5%). The mean healthcare cost per hospital visit due to dizziness/vertigo was ₩96,524 (95% confidence interval, ₩96,194-₩96,855), 30% higher than the average (₩73,948) of the overall healthcare cost per hospital visit over the same period.

CONCLUSION

Owing to higher healthcare costs for dizziness/vertigo and increased prevalence of dizziness/vertigo in the aged population, healthcare costs due to dizziness/vertigo will increase rapidly in South Korea. Thus, a guideline for cost-effective management of dizziness/vertigo should be established to reduce the healthcare costs due to these common symptoms.

PROMIS-29 in rheumatoid arthritis patients who screen positive or negative for fibromyalgia on MDHAQ FAST4 (fibromyalgia assessment screening tool) or 2011 fibromyalgia criteria

BACKGROUND

PROMIS-29 T-scores query health-related quality of life (HRQL) in 7 domains, physical function, pain, fatigue, anxiety, depression, sleep quality, and social participation, to establish population norms. An MDHAQ (multidimensional health assessment questionnaire) scores these 7 domains and includes medical information such as a FAST4 (fibromyalgia assessment screening tool) index. We analyzed PROMIS-29 T-scores in rheumatoid arthritis (RA) patients vs population norms and for positive vs negative fibromyalgia (FM) screens and compared PROMIS-29 T-scores to MDHAQ scores to assess HRQL.

METHODS

A cross-sectional study was performed at one routine visit of 213 RA patients, who completed MDHAQ, PROMIS-29, and reference 2011 FM Criteria. PROMIS-29 T-scores were compared in RA vs population norms and in FM+ vs FM- RA patients, based on MDHAQ/FAST4 and reference criteria. Possible associations between PROMIS-29 T-scores and corresponding MDHAQ scores were analyzed using Spearman correlations and multiple regressions.

RESULTS

Median PROMIS-29 T-scores indicated clinically and statistically significantly poorer status in 26-29% FM+ vs FM- RA patients, with larger differences than in RA patients vs population norms for 6/7 domains. MDHAQ scores were correlated significantly with each of 7 corresponding PROMIS-29 domains (|rho|≥0.62, p<0.001). Linear regressions explained 55-73% of PROMIS-29 T-score variation by MDHAQ scores and 56%-70% of MDHAQ score variation by PROMIS-29 T-scores.

CONCLUSIONS

Scores for 7 PROMIS-29 domains and MDHAQ were highly correlated. The MDHAQ is effective to assess HRQL and offers incremental medical information, including FAST4 screening. The results indicate the importance of assessing comorbidities such as fibromyalgia screening in interpreting PROMIS-29 T-scores.

Post-stroke dizziness, depression and anxiety

OBJECTIVE

Vestibular and psychiatric disorders are very closely related. Previous research shows that the discomfort and dysfunction caused by dizziness in patients can affect psychological processes, leading to anxiety and depression, and the irritation of anxiety and depression can aggravate the discomfort of dizziness. But the causal relationship between dizziness in the recovery period of stroke and Post-stroke depression (PSD) / Post-stroke anxiety (PSA) is not clear. Identifying the causal relationship between them can enable us to conduct more targeted treatments.

METHODS

We review the epidemiology and relationship of dizziness, anxiety, and depression, along with the related neuroanatomical basis. We also review the pathophysiology of dizziness after stroke, vestibular function of patients experiencing dizziness, and the causes and mechanisms of PSD and PSA. We attempt to explore the possible relationship between post-stroke dizziness and PSD and PSA.

CONCLUSION

The treatment approach for post-stroke dizziness depends on its underlying cause. If the dizziness is a result of PSD and PSA, addressing these psychological factors may alleviate the dizziness. This can be achieved through targeted treatments for PSD and PSA, such as psychotherapy, antidepressants, or anxiolytics, which could indirectly improve dizziness symptoms. Conversely, if PSA and PSD are secondary to vestibular dysfunction caused by stroke, a thorough vestibular function assessment is crucial. Identifying the extent of vestibular impairment allows for tailored interventions. These could include vestibular rehabilitation therapy and medication aimed at vestibular restoration. By improving vestibular function, secondary symptoms like anxiety and depression may also be mitigated.

Determinants of adolescents' depression, anxiety, and somatic symptoms in Northwest Ethiopia: A non-recursive structural equation modeling

INTRODUCTION

In low and middle-income countries, adolescent mental health is not only a major public health challenge but also a development concern. Depression and anxiety are the most common mental health disorders and somatic symptoms often co-exist with them. Adolescents with common mental health problems are associated with an increased risk of suicide, future unemployment, and poor quality of life. However, little is known about the mental health of adolescents in Ethiopia. Thus, this study aimed to assess the determinants of depression, anxiety, and somatic symptoms among adolescents in Northwest Ethiopia, in 2022.

METHODS

An institution-based cross-sectional study was conducted from June 8 to 24, 2022. Two-stage stratified random sampling was used to select 1407 adolescents in Northwest Ethiopia. Structured and standardized self-administered questionnaires were used to collect the data. Non-recursive structural equation modeling was employed to assess the direct, indirect, and total effects of predictors. Adjusted regression coefficients and corresponding 95% confidence intervals were used to interpret the strength of the association.

RESULTS

The prevalence of depression, anxiety, and somatic symptoms were 28.21% (95% CI: 25.8, 31%), 25.05% (95%CI: 22.8, 27.5), and 25.24(95% CI: 23, 27.6%) respectively. Alcohol use had a significant positive effect on depression [β = 0.14, 95% CI: 0.073, 0.201], anxiety [β = 0.11, 95% CI: 0.041, 0.188], and somatic symptoms [β = 0.12, 95% CI: 0.062, 0.211]. Stress had a significant positive effect on depression [β = 0.76, 95% CI: 0.642, 0.900], anxiety [β = 1.10, 95% CI: 0.955, 1.264], and somatic symptoms [β = 086, 95% C: 0.700, 1.025]. Depression had a direct positive effect on anxiety [β = 0.74, 95% CI: 0.508, 1.010].

CONCLUSION

In this study, the prevalence of depression, anxiety, and somatic symptoms was moderate. Alcohol use and stress were significantly related to depression, anxiety, and somatic symptoms. The bidirectional relationship between anxiety and depression was significant. Therefore, public health interventions should focus on the bidirectional relationship between depression and anxiety, as well as on identified factors to reduce the burden of mental illness in adolescents.

Surgeons Have an Implicit Preference for Specific Disease Over Nonspecific Illness

BACKGROUND

Many symptoms are not associated with a specific, measurable pathophysiology. Such nonspecific illnesses may carry relative social stigma that biases humans in favor of specific diseases. Such a bias could lead musculoskeletal surgeons to diagnose a specific disease in the absence of a specific, measurable pathology, resulting in potential overdiagnosis and overtreatment.

QUESTIONS/PURPOSES

(1) What factors are associated with surgeon implicit preference for specific disease over nonspecific illness? (2) What factors are associated with surgeon explicit preference for specific disease over nonspecific illness? (3) Is there a relationship between surgeon implicit and explicit preferences for specific disease over nonspecific illness?

METHODS

One hundred three members of the Science of Variation Group participated in a survey-based experiment that included an Implicit Associations Test (IAT) to assess implicit preferences for specific, measurable musculoskeletal pathophysiology (specific disease) compared with symptoms that are not associated with a specific, measurable pathophysiology (nonspecific illness), and a set of four simple, face valid numerical ratings of explicit preferences. The Science of Variation Group is an international collaborative of mostly United States and European (85% [88 of 103] in this study), mostly academic (83% [85 of 103]), and mostly fracture and upper extremity surgeons (83% [86 of 103]), among whom approximately 200 surgeons complete at least one survey per year. The human themes addressed in this study are likely relatively consistent across these variations. Although concerns have been raised about the validity and utility of the IAT, we believe this was the right tool, given that the timed delays in association that form the basis of the measurement likely represent bias and social stigma regarding nonspecific illness. Both measures were scaled from -150, which represents a preference for nonspecific illness, to 150, which represents a preference for specific disease. The magnitude of associations can be assessed relative to the standard deviation or interquartile range. We used multivariable linear regression to identify surgeon factors associated with surgeon implicit and explicit preference for specific disease or nonspecific illness. We measured the relationship between surgeon implicit and explicit preferences for specific disease or nonspecific illness using Spearman correlation.

RESULTS

Overall, there was a notable implicit bias in favor of specific diseases over nonspecific illness (median [IQR] 70 [54 to 88]; considered notable because the mean value is above zero [neutral] by more than twice the magnitude of the IQR), with a modestly greater association in the hand and wrist subspecialty. We found no clinically important explicit preference between specific disease and nonspecific illness (median 8 [-15 to 37]; p = 0.02). There was no correlation between explicit preference and implicit bias regarding specific disease and nonspecific illness (Spearman correlation coefficient -0.13; p = 0.20).

CONCLUSION

Given that our study found an implicit bias among musculoskeletal specialists toward specific diseases over nonspecific illness, future research might address the degree to which this bias may account, in part, for patterns of use of low-yield diagnostic testing and the use of diagnostic labels that imply specific pathophysiology when none is detectable.

CLINICAL RELEVANCE

Patients and clinicians might limit overtesting, overdiagnosis, and overtreatment by anticipating an implicit preference for a specific disease and intentionally anchoring on nonspecific illness until a specific pathophysiology accounting for symptoms is identified, and also by using nonspecific illness descriptions until objective, verifiable pathophysiology is identified.

Assessing clinical reasoning skills following a virtual patient dizziness curriculum

OBJECTIVES

Dizziness is a common medical symptom that is frequently misdiagnosed. While virtual patient (VP) education has been shown to improve diagnostic accuracy for dizziness as assessed by VPs, trainee performance has not been assessed on human subjects. The study aimed to assess whether internal medicine (IM) interns after training on a VP-based dizziness curriculum using a deliberate practice framework would demonstrate improved clinical reasoning when assessed in an objective structured clinical examination (OSCE).

METHODS

All available interns volunteered and were randomized 2:1 to intervention (VP education) vs. control (standard clinical teaching) groups. This quasi-experimental study was conducted at one academic medical center from January to May 2021. Both groups completed pre-posttest VP case assessments (scored as correct diagnosis across six VP cases) and participated in an OSCE done 6 weeks later. The OSCEs were recorded and assessed using a rubric that was systematically developed and validated.

RESULTS

Out of 21 available interns, 20 participated. Between intervention (n=13) and control (n=7), mean pretest VP diagnostic accuracy scores did not differ; the posttest VP scores improved for the intervention group (3.5 [SD 1.3] vs. 1.6 [SD 0.8], p=0.007). On the OSCE, the means scores were higher in the intervention (n=11) compared to control group (n=4) for physical exam (8.4 [SD 4.6] vs. 3.9 [SD 4.0], p=0.003) and total rubric score (43.4 [SD 12.2] vs. 32.6 [SD 11.3], p=0.04).

CONCLUSIONS

The VP-based dizziness curriculum resulted in improved diagnostic accuracy among IM interns with enhanced physical exam skills retained at 6 weeks post-intervention.

Recent Developments in Vestibular Migraine: A Narrative Review

PURPOSE

The aim of this study was to review current literature regarding the epidemiology of vestibular migraine (VM), patient presentation, pathogenesis, and treatment.

RECENT FINDINGS

VM is becoming an increasingly recognized condition in the United States, currently affecting 2.7% of people. Patients may experience vestibular symptoms, such as vertigo and imbalance, with or without other migrainous symptoms. Recent evidence has also shown that patients with VM are at higher risk for cochlear dysfunction, such as sudden deafness, sensorineural hearing loss, and tinnitus. The heritability and genetics are not well understood, and the pathogenesis may involve calcitonin gene-related peptide, which is also implicated in migraine headaches. A disease-specific patient reported outcome measure, the Vestibular Migraine Patient Assessment Tool and Handicap Inventory, was recently developed and validated. A limited number of controlled trials have assessed various therapies for VM, including triptans and beta-blockers. More data are needed to understand whether or not currently available migraine treatments are effective for VM.

SUMMARY

VM is a common etiology of vertigo and dizziness, presenting with a characteristic spectrum of symptoms. Early data suggest that migraine treatments may be helpful in some cases.

Impact of Clinician Training Background and Stroke Location on Bedside Diagnostic Test Accuracy in the Acute Vestibular Syndrome - A Meta-Analysis

OBJECTIVE

Acute dizziness/vertigo is usually due to benign inner-ear causes but is occasionally due to dangerous neurologic ones, particularly stroke. Because symptoms and signs overlap, misdiagnosis is frequent and overuse of neuroimaging is common. We assessed the accuracy of bedside findings to differentiate peripheral vestibular from central neurologic causes.

METHODS

We performed a systematic search (MEDLINE and Embase) to identify studies reporting on diagnostic accuracy of physical examination in adults with acute, prolonged dizziness/vertigo ("acute vestibular syndrome" [AVS]). Diagnostic test properties were calculated for findings. Results were stratified by examiner type and stroke location.

RESULTS

We identified 6,089 citations and included 14 articles representing 10 study cohorts (n = 800). The Head Impulse, Nystagmus, Test of Skew (HINTS) eye movement battery had high sensitivity 95.3% (95% confidence interval [CI] = 92.5-98.1) and specificity 92.6% (95% CI = 88.6-96.5). Sensitivity was similar by examiner type (subspecialists 94.3% [95% CI = 88.2-100.0] vs non-subspecialists 95.0% [95% CI = 91.2-98.9], p = 0.55), but specificity was higher among subspecialists (97.6% [95% CI = 94.9-100.0] vs 89.1% [95% CI = 83.0-95.2], p = 0.007). HINTS sensitivity was lower in anterior cerebellar artery (AICA) than posterior inferior cerebellar artery (PICA) strokes (84.0% [95% CI = 65.3-93.6] vs 97.7% [95% CI = 93.3-99.2], p = 0.014) but was "rescued" by the addition of bedside hearing tests (HINTS+). Severe (grade 3) gait/truncal instability had high specificity 99.2% (95% CI = 97.8-100.0) but low sensitivity 35.8% (95% CI = 5.2-66.5). Early magnetic resonance imaging (MRI)-diffusion-weighted imaging (DWI; within 24-48 hours) was falsely negative in 15% of strokes (sensitivity 85.1% [95% CI = 79.2-91.0]).

INTERPRETATION

In AVS, HINTS examination by appropriately trained clinicians can differentiate peripheral from central causes and has higher diagnostic accuracy for stroke than MRI-DWI in the first 24-48 hours. These techniques should be disseminated to all clinicians evaluating dizziness/vertigo. ANN NEUROL 2023;94:295-308.

Development of a model to predict the risk of cerebral infarction in acute vestibular syndrome

Objectives

This study aimed to develop a model to predict the risk of cerebral infarction in acute vestibular syndrome and assist emergency physicians in quickly identifying patients with cerebral infarction.

Materials and methods

We looked at 262 patients who were split into cerebral infarction and peripheral vertigo groups. Stepwise regression and Lasso's approach were used to screen for variables, and Boothstrap's method was used to evaluate the model's discrimination and calibration. The model's performance was compared against TriAGe+, ABCD2, and PCI scores using the area under the receiver operator characteristic curve. Clinical decision-making was aided by the use of clinical impact and decision curves.

Results

In the end, nine risk factors were chosen for model 2, and ten risk factors were chosen for model 1. Model 2 was adopted as the final model. The areas under the receiver operator curve value of the model2 were 0.910(P = 0.000), much higher than the areas under the receiver operator curve value of the TriAGe + scores system and that of the PCI scores system. The clinical decision curve shows that when the threshold probability is 0.05, using the nomogram to predict cerebral infarction has more benefits than either the treat-all-patients scheme or the treat-none scheme. The clinical impact curve shows that when the threshold probability is 0.6 the model predicts disease occurrence in general agreement with the occurrence of the real disease.

Conclusion

This study model can help emergency room physicians quickly triage and treat patients by accurately identifying cerebral infarction patients.

Effect of Self-treatment of Recurrent Benign Paroxysmal Positional Vertigo: A Randomized Clinical Trial

Importance

Benign paroxysmal positional vertigo (BPPV) is the most common cause of vertigo with frequent recurrences.

Objective

To determine the efficacy of a web-based diagnosis and treatment of BPPV when it recurs in patients with confirmed and treated BPPV.

Design, Setting, and Participants

This randomized, controlled, parallel-group, double-blind trial took place in multiple referral-based university hospitals in South Korea between July 2017 and February 2020. Of 728 patients (age ≥20 years) with diagnosed and treated BPPV, 585 were enrolled after excluding 143 who declined participation, could not use the internet, or had spinal problems, multicanal BPPV, or cognitive dysfunction. Patients were followed up for recurrence at least for 2 years until February 2022.

Interventions

Patients were randomly assigned (1:1) to the treatment or control group. The patients in the treatment group completed a questionnaire for diagnosis and received a video clip for self-administration of canalith repositioning maneuver (CRM) according to the type of BPPV diagnosed when they experienced positional vertigo again. Patients in the control group received a video clip for self-administration of CRM according to the type of BPPV that had been diagnosed on enrollment.

Main Outcomes and Measures

The primary outcome was self-reported resolution of positional vertigo post-CRM. Secondary outcomes included difficulties and requirement for assistance when using the program and any falls or other adverse events related to CRM. The primary outcome was analyzed using both intention-to-treat and per-protocol methods.

Results

Of 585 patients enrolled, 292 were randomized to the treatment group (mean [SD] age, 60.3 [12.8] years, 37 [64%] women) and 293 were randomized to the control group (mean [SD] age, 61.1 [13.2] years; 50 [71%] women). Overall, 128 (21.9%) had recurrence (58 in the treatment group and 70 in the control group), and 109 (85.2%) successfully used the web-based system. In the intention-to-treat analysis, 42 of 58 individuals (72.4%) in the treatment group and 30 of 70 individuals (42.9%) in the control group reported vertigo resolution (χ2 test: 95% CI, 0.13-0.46; P < .001).

Conclusions and Relevance

This trial proved the efficacy of a web-based system for the diagnosis and treatment of recurrent BPPV. Use of this system may play an important role in telemedicine for vestibular disorders.

Trial Registration

Clinical Research Information Service Identifier: KCT0002364.

Closing the Loop: Re-engineering the Assessment and Tracking of Symptoms in Primary Care

Reliable systems that track the continuation, progression, or resolution of a patient's symptoms over time are essential for reliable diagnosis and ensuring that patients harboring more worrisome diagnoses are safely followed up. Given their first-contact role and increasing stresses on busy primary care clinicians and practices, new processes that make these tasks easier rather than creating more work for busy clinicians are especially needed.Some symptoms are sufficiently worrisome that they demand an urgent diagnosis and treatment while others result in a differential that can be more safely explored over time, or less differentiated and worrisome that they are best managed with the "test of time" to see if they resolve, worsen, or evolve into symptoms that are more worrisome. Regardless, it is essential that clinicians are able to reliably track symptoms over time, yet this capacity is rarely available or explicit. Working with systems engineers, we are developing prototypes for such systems and are working on their implementation and evaluation. In this commentary, we describe approaches to this essential, but underappreciated, problem in primary care.

Communication of Diagnostic Uncertainty in Primary Care and Its Impact on Patient Experience: an Integrative Systematic Review

BACKGROUND

Diagnostic uncertainty is a pervasive issue in primary care where patients often present with non-specific symptoms early in the disease process. Knowledge about how clinicians communicate diagnostic uncertainty to patients is crucial to prevent associated diagnostic errors. Yet, in-depth research on the interpersonal communication of diagnostic uncertainty has been limited. We conducted an integrative systematic literature review (PROSPERO CRD42020197624, unfunded) to investigate how primary care doctors communicate diagnostic uncertainty in interactions with patients and how patients experience their care in the face of uncertainty.

METHODS

We searched MEDLINE, PsycINFO, and Linguistics and Language Behaviour Abstracts (LLBA) from inception to December 2021 for MeSH and keywords related to 'communication', 'diagnosis', 'uncertainty' and 'primary care' environments and stakeholders (patients and doctors), and conducted additional handsearching. We included empirical primary care studies published in English on spoken communication of diagnostic uncertainty by doctors to patients. We assessed risk of bias with the QATSDD quality assessment tool and conducted thematic and content analysis to synthesise the results.

RESULTS

Inclusion criteria were met for 19 out of 1281 studies. Doctors used two main communication strategies to manage diagnostic uncertainty: (1) patient-centred communication strategies (e.g. use of empathy), and (2) diagnostic reasoning strategies (e.g. excluding serious diagnoses). Linguistically, diagnostic uncertainty was either disclosed explicitly or implicitly through diverse lexical and syntactical constructions, or not communicated (omission). Patients' experiences of care in response to the diverse communicative and linguistic strategies were mixed. Patient-centred approaches were generally regarded positively by patients.

DISCUSSION

Despite a small number of included studies, this is the first review to systematically catalogue the diverse communication and linguistic strategies to express diagnostic uncertainty in primary care. Health professionals should be aware of the diverse strategies used to express diagnostic uncertainty in practice and the value of combining patient-centred approaches with diagnostic reasoning strategies.

Chronic diseases and health conditions in adolescents: Sex inequalities

OBJECTIVE

To estimate the prevalence of chronic diseases and health conditions in adolescents from Campinas (São Paulo), investigating sex differences according to age group.

METHODS

This population-based study analyzed data from the ISACamp 2014/15 health survey, with a total of 1,022 adolescents interviewed. The interviewees consisted of 517 boys and 505 girls; 492 of them in the ten to 14 age group and 530 in the 15 to 19 age group. We verified the associations using the χ2 test with Rao Scott adjustment and estimated prevalence ratios (PR) with multiple Poisson regression adjusted for age. Analyses were also stratified by age group.

RESULTS

Respiratory diseases, such as rhinitis (25.3%), sinusitis (15.7%), and asthma (10.9%), were the most prevalent among adolescents. Health complaints were high, especially headaches (39.5%), emotional conditions (34.5%), allergies (27.5%), and back pain (21.3%). More than 22.0% of adolescents reported having three or more health conditions. Girls declared a higher number of health conditions (three or more) than boys (PR=2.27).

CONCLUSION

The study showed that adolescents presented a significant number of health conditions, particularly regarding complaints, indicating the need for clinical care and public policies aimed at controlling and preventing these diseases in this age group.

Chronic diseases and health conditions in adolescents: Sex inequalities

ABSTRACT Objective: To estimate the prevalence of chronic diseases and health conditions in adolescents from Campinas (São Paulo), investigating sex differences according to age group. Methods: This population-based study analyzed data from the ISACamp 2014/15 health survey, with a total of 1,022 adolescents interviewed. The interviewees consisted of 517 boys and 505 girls; 492 of them in the ten to 14 age group and 530 in the 15 to 19 age group. We verified the associations using the χ2 test with Rao Scott adjustment and estimated prevalence ratios (PR) with multiple Poisson regression adjusted for age. Analyses were also stratified by age group. Results: Respiratory diseases, such as rhinitis (25.3%), sinusitis (15.7%), and asthma (10.9%), were the most prevalent among adolescents. Health complaints were high, especially headaches (39.5%), emotional conditions (34.5%), allergies (27.5%), and back pain (21.3%). More than 22.0% of adolescents reported having three or more health conditions. Girls declared a higher number of health conditions (three or more) than boys (PR=2.27). Conclusion: The study showed that adolescents presented a significant number of health conditions, particularly regarding complaints, indicating the need for clinical care and public policies aimed at controlling and preventing these diseases in this age group.

Do clinicians have an implicit bias in favor of specific disease over nonspecific illness?

BACKGROUND

Some patients and clinicians have an explicit preference to associate symptoms with specific pathology. This bias can manifest in relatively specific names for illnesses with nonspecific symptoms and signs such as radial tunnel syndrome, repetitive strain injury, and fibromyalgia. This might be a manifestation of a desire for a sense of control and measurable as an unconscious bias for specific over non-specific illnesses.

QUESTIONS

There are no factors independently associated with orthopedic surgeon unconscious bias against non-specific illness; Is there a relationship between clinician unconscious bias and clinician explicit preference regarding non-specific illness?

PATIENTS AND METHODS

An implicit association test was used to evaluate clinician implicit bias regarding specific and nonspecific illnesses. Demographic information and explicit preference were collected from consented clinicians.

RESULTS

Musculoskeletal clinicians have moderate explicit (conscious) and implicit (unconscious) bias in favor of specific illnesses over nonspecific illnesses.

CONCLUSIONS

Musculoskeletal clinicians explicitly and implicitly favor specific over nonspecific illnesses.

CLINICAL RELEVANCE

Given the notable prevalence of symptoms that are never associated with discrete pathology, care strategies designed to neutralize bias against non-specific illness have the potential to reduce low value tests and treatments; 2) avoid diagnoses that imply specific pathology when the illness is characterized by the absence of verifiable objective pathology; and 3) prioritize interventions known to enhance health among people with no identifiable pathology.

Pregestational neurological disorders among women of childbearing age—Nationwide data from a 13-year period in Hungary

Objectives

Comprehensive statistics evaluating pregnancies complicated by various medical conditions are desirable for the optimization of prenatal care and for improving maternal and fetal outcomes. The main objective of our study was to assess pregnancies during a 13-year study period with accompanying pregestational neurological disorders in medical history on a nationwide level.

Methods

In the framework of the NEUROHUN 2004–2017 project utilizing medical reports submitted for reimbursement purposes to the National Health Insurance Fund, we included women with at least one labor during 2004–2016 who had at least one pregestational diagnosis of a neurological disorder received within this time frame prior to their first pregnancy during the studied period. Three-digit codes from the 10^th International Classification of Diseases (ICD) were used for the identification and classification of neurological and obstetrical conditions.

Results

Specific inclusion and exclusion criteria were employed during the study process. A total of 744 226 women have been identified with at least one delivery during the study period with 98 792 of them (13.3%) having at least one neurological diagnosis received during 2004–2016 before their first gestation in the time frame of the study. The vast majority of diagnosis codes were related to different types of headaches affecting 69 149 (9.3%) individuals. The most prevalent diagnoses following headaches were dizziness and giddiness (15 589 patients [2.1%]; nerve, nerve root and plexus disorders (10 375 patients [1.4%]); epileptic disorders (7028 patients [0.9%]); neurological diseases of vascular origin (6091 patients [0.8%]); other disorders of the nervous system (5358 patients [0.7%]); and demyelinating diseases of the central nervous system (2129 patients [0.3%]). The present findings of our study show high prevalence of pregestational neurological disorders, the dominance of headaches followed by the rather nonspecific diagnosis of dizziness and giddiness, the relevance of nerve, nerve root and plexus disorders and epilepsy, and the importance of cerebrovascular disorders among women of childbearing age.

Conclusion

The present research findings can help healthcare professionals, researchers and decision makers in adopting specific health policy measures based on nationwide data and further aid the development of new diagnostic and therapeutic algorithms of various neurological manifestations concerning women of childbearing age.

Prevalence of Somatic Symptoms and Quality of Life Among Married Women Having a Distant Relationship With Their Spouses in Mangalore, India

Background: Married women having a distant relationship with their husbands are prone to mental disorders like somatic symptoms, eventually reducing their quality of life (QoL).

Objective: To assess the somatic symptoms and quality of life among married women having a distant relationship with their spouses.

Methodology: A descriptive cross-sectional study was conducted in 2018. Women having a distant relationship were selected using snowball sampling from selected urban areas of Mangalore, Karnataka. The Scale for Assessment of Somatic Symptoms (SASS) and the World Health Organization Quality of Life Scale (WHOQOL)-BREF questionnaire were used to assess somatic symptoms and quality of life, respectively. Multiple linear regression was used to identify the predictors of somatic symptoms and QoL.

Results: Out of 100 married women with a distant relationship, 83% experienced at least one symptom at a moderate/severe level, whereas the prevalence of somatic symptoms was 30% (at least one symptom at a severe level). Among these 30 women, the majority were in the age groups of 25-30 (32%) and 31-35 (30%). The somatic symptoms had a negative association with Christians (p<0.05), whereas they were positively associated with women living in nuclear families (p<0.05) and marriages of less than 3 years (p<0.05). Among the four domains of WHOQOL-BREF, the highest QoL was seen in the social domain (61.06 ± 18.58), the lowest was seen in the psychological domain (54.78 ± 13.05).

Conclusion: Women who have a distant relationship with their husbands manifest somatic symptoms which decrease their quality of life. This emphasizes the need to use different approaches during hospital visits and community-oriented programs to identify and improve mental health among married women and wellbeing in the family.

Diagnosing Stroke in Acute Vertigo: Sensitivity and Specificity of HINTS Battery in Indian Population

Introduction

Most patients presenting with acute vertigo are believed to suffer from acute, self-limited, presumed viral or post-viral vestibular neuritis (VN). But 25% of such cases can be "Pseudo VN", and are due to central causes, most often stroke. The aim of the present research was to study the sensitivity and specificity of Head Impulse, Nystagmus, Skew deviation (HINTS) battery for diagnosis of stroke in patients with acute-onset first episode of spontaneous vertigo.

Materials and Methods

Seventy-five patients who visited outpatient department or admitted between August 2014 and April 2016 with acute-onset first episode of spontaneous vertigo were included. Each patient was subjected to bedside oculomotor tests and HINTS. All patients underwent magnetic resonance imaging (MRI) of the brain. Stroke was diagnosed by MRI brain. If initial MRI brain was normal and still clinical signs favor stroke, repeat MRI brain-diffusion-weighted imaging study was done at 72 h after symptom onset to confirm the diagnosis. The sensitivity, specificity, positive predictive value, negative predictive value, accuracy and Youden's Index were used to quantify the diagnostic efficiency of HINTS at presentation against final MRI.

Results

Patients presented with acute-onset first episode of spontaneous vertigo, HINTS battery was found to be more sensitive than the initial MRI of the brain done in first 24 h in diagnosing stroke (97.1 % Vs 82.9%). The specificity of the initial MRI of the brain and HINTS battery was 100.0 % and 80.0% respectively.

Conclusions

The HINTS battery was more sensitive than the initial MRI of the brain in diagnosing stroke in first 24 h in patients presented with acute-onset first episode of spontaneous vertigo.

Does Functional Somatic Symptoms Measurement Differ Across Sex and Age? Differential Item Functioning in Somatic Symptoms Measured With the CIDI

Functional Somatic Symptoms (FSS) are physical symptoms that cannot be attributed to underlying pathology. Their severity is often measured with sum scores on questionnaires; however, this may not adequately reflect FSS severity in subgroups of patients. We aimed to identify the items of the somatization section of the Composite International Diagnostic Interview that best discriminate FSS severity levels, and to assess their functioning in sex and age subgroups. We applied the two-parameter logistic model to 19 items in a population-representative cohort of 962 participants. Subsequently, we examined differential item functioning (DIF). "Localized (muscle) weakness" was the most discriminative item of FSS severity. "Abdominal pain" consistently showed DIF by sex, with males reporting it at higher FSS severity. There was no consistent DIF by age, however, "Joint pain" showed poor discrimination of FSS severity in older adults. These findings could be helpful for the development of better assessment instruments for FSS, which can improve both future research and clinical care.

SymTrak-8 as a Brief Measure for Assessing Symptoms in Older Adults

BACKGROUND

Patient- and caregiver-reported 23-item SymTrak scales were validated for monitoring clinically actionable symptoms and impairments associated with multiple chronic conditions (MCCs) in older adults. Items capture physical and emotional symptoms and impairments in physical and cognitive functioning. An abbreviated SymTrak is desirable when response burden is a concern.

OBJECTIVE

Develop and validate the 8-item SymTrak.

DESIGN AND PARTICIPANTS

Secondary analysis of SymTrak validation study; 600 participants (200 patient-caregiver dyads; 200 patients without an identified caregiver).

MAIN MEASURES

Demographic questions, SymTrak, and Health Utility Index Mark 3 (HUI3).

KEY RESULTS

SymTrak-8 demonstrated good fit to a one-factor model using confirmatory factor analysis (CFA). Concurrent criterion validity was supported by high standardized linear regression coefficients (STB) between baseline SymTrak-8 total score (independent variable) and baseline HUI3 preference-based overall HRQOL utility score (dependent variable; 0 = death, 1 = perfect health), after adjusting for demographics, comorbid conditions, and medications, with strength comparable to SymTrak-23 (STB = - 0.81 and - 0.84, respectively, for SymTrak-8 and SymTrak-23, when patient-reported; and - 0.60 and - 0.62, respectively, when caregiver-reported). Coefficient alpha (0.74; 0.76) and 24-h test-retest reliability (0.83; 0.87) were high for SymTrak-8 for patients and caregivers, respectively. The convergent correlation between brief and parent SymTrak scales was high (0.94). SymTrak-8 demonstrated approximate normality and a linear relationship with SymTrak-23 and HUI3. Importantly, a 3-month change in SymTrak-8 was sensitive to detecting the criterion (3-month reliable change categories; improved, stable, declined in HUI3 overall utility), with results comparable to SymTrak-23.

CONCLUSIONS

SymTrak-8 total score demonstrates internal reliably, test-retest reliability, criterion validity, and sensitivity to change that are comparable to SymTrak-23. Thus, patient- or caregiver-reported SymTrak-8 is a viable option for identifying and monitoring the aggregate effect of symptoms and functional impairments in patients with multimorbidity when response burden is a concern.

A 3-Month Naturalistic Follow-Up Treatment With Selective Serotonin Reuptake Inhibitors in Frequent Attenders of General Medical Practice: What Correlates With a Good Response?

ABSTRACT

Frequent attenders (FAs), defined as patients repeatedly attending general practitioners, frequently exhibit underdiagnosed psychiatric comorbidities, leading to the hypothesis that frequent attendance may be related to an undetected psychiatric burden. This study explores the role of psychiatric comorbidities and psychopharmacological treatment on the clinical outcomes of a cohort of FAs of the general medical practice in Italy. The study included 75 FAs assessed by the Structured Clinical Interview for DSM-5, Clinical Global Impression, Global Assessment Functioning, and Illness Behavior Inventory, administered at baseline (T0) and after 3 months (T1). Data were analyzed on the bases of the presence of any mental disorder and selective serotonin reuptake inhibitor (SSRI) treatment, with respect to other psychopharmacological treatments. Results showed better outcomes among patients with a mental disorder, particularly anxiety, depression, and somatic symptoms disorders, and when under SSRI treatment. Our findings corroborate the role of psychiatric comorbidity on frequent attendance in the context of general clinical practice with a positive outcome when receiving appropriate treatment with SSRI.

Excessiveness in Symptom-Related Thoughts, Feelings, and Behaviors: An Investigation of Somatic Symptom Disorders in the General Population

OBJECTIVE

The diagnostic criteria of somatic symptom disorder (SSD) emphasize that somatic symptoms receive disease value once they are accompanied by excessive thoughts, feelings, or behaviors. The main objective of this study was to examine what constitutes excessiveness in psychological reactions to somatic complaints and how excessive symptom-related behavior influences self-reported health status and health care utilization.

METHODS

A national, representative general population survey was performed between January and March 2016 in Germany, including 2395 individuals older than 13 years. Self-report questionnaires (Somatic Symptom Scale-8, Somatic Symptom Disorder-B Criteria Scale) were used to operationalize the SSD criteria. Group differences in the daily amount of time dedicated to physical complaints were analyzed between individuals with and without SSD. Stepwise linear regression analyses were performed to predict general mental and physical health status, and health care utilization.

RESULTS

There was a significant effect of group (SSD yes/no) in daily time spent on symptoms, after controlling for age, sex, depression, and anxiety (F(1,2336) = 447.53, p < .001). The SSD group (n = 213) reported an average of 4 hours, whereas individuals without SSD reported 30 minutes. Results of the regression analyses showed that the combination of somatic symptoms and symptom-related psychological features is predictive of worsened self-reported physical and mental health status, and increased health care utilization.

CONCLUSIONS

A range of 3 to 4 hours per day spent on dealing with physical complaints seems indicative of excessiveness. If, during a clinical consultation, a patient reports such a large amount of time, a more comprehensive clinical examination of SSD should follow.

Chronic isolated lightheadedness is a sign of abnormal plasma levels of phospholipids

OBJECTIVE

To evaluate whether Chronic Isolated Light-headedness (CIL) commonly manifested in elderly patients is related with cerebral oxygen insufficiency.

METHODS

In this case-control study, 462 patients (aged 40-83 years) with CIL and 238 clinical data matched controls were enrolled consecutively from January 2011 to September 2014. The plasma levels of "phospholipids with solubility similar to that of lysophosphatidic acid" (PSS-LPA), a surrogate marker for cerebral oxygen insufficiency, were assayed for all subjects to compare the occurrence and severity of CIL with the values of PSS-LPA.

RESULTS

Patients with CIL had significantly higher plasma levels of PSS-LPA than controls, regardless of having or having not psychogenic abnormalities, χ2 = 448, odds ratio (95% CI) = 140 (72-260), P < 0.001; the mean plasma levels, 0.573 vs. 0.290 mmol/L respectively (P < 0.001). Receiver operator characteristic (ROC) analyses showed plasma PSS-LPA was both sensitive and specific for CIL. The area under ROC curve (AUC) was as high as 0.953 (0.938-0.968). The changes in severity of CIL between two separate assays of one month apart were correlated closely with the changes in plasma levels of PSS-LPA for the same patients, correlation coefficient (Spearman) = 0.90, p < 0.001.

CONCLUSIONS

CIL is a manifestation of abnormal plasma levels of phospholipids which suggests cerebral oxygen insufficiency. This new finding shows that cerebral oxygen insufficiency is not rare especially in elderly persons.

Artificial Intelligence and Clinical Decision Making: The New Nature of Medical Uncertainty

Estimates in a 1989 study indicated that physicians in the United States were unable to reach a diagnosis that accounted for their patient's symptoms in up to 90% of outpatient patient encounters. Many proponents of artificial intelligence (AI) see the current process of moving from clinical data gathering to medical diagnosis as being limited by human analytic capability and expect AI to be a valuable tool to refine this process. The use of AI fundamentally calls into question the extent to which uncertainty in medical decision making is tolerated. Uncertainty is perceived by some as fundamentally undesirable and thus, for them, optimal decision making should be based on minimizing uncertainty. However, uncertainty cannot be reduced to zero; thus, relative uncertainty can be used as a metric to weigh the likelihood of various diagnoses being correct and the appropriateness of treatments. Here, the authors make the argument, using as examples the experiences of 2 AI systems, IBM Watson on Jeopardy and Watson for Oncology, that medical decision making based on relative uncertainty provides a better lens for understanding the application of AI to medicine than one that minimizes uncertainty. This approach to uncertainty has significant implications for how health care leaders consider the benefits and trade-offs of AI-assisted and AI-driven decision tools and ultimately integrate AI into medical practice.

Making and managing medical anomalies: Exploring the classification of 'medically unexplained symptoms'

This article explores the making and management of anomaly in scientific work, taking 'medically unexplained symptoms' (MUS) as its case. MUS is a category used to characterize health conditions that are widely held to be ambiguous, in terms of their nature, causes and treatment. It has been suggested that MUS is a 'wastebasket diagnosis'. However, although a powerful metaphor, it does neither the category nor the profession justice: Unlike waste in a wastebasket, unexplained symptoms are not discarded but contained, not ejected but managed. Rather than a 'wastebasket', I propose that we instead think about it as a 'junk drawer'. A junk drawer is an ordering device whose function is the containment of things we want to keep but have nowhere else to put. Based on a critical document analysis of the research literature on MUS (107 research articles from 10 medical journals, published 2001-2016), the article explores how the MUS category is constituted and managed as a junk drawer in medical science.

Functional abdominal pain in adolescents: case-based management

Functional gastrointestinal disorders (FGIDs), including functional abdominal pain (FAP), account for a large portion of conditions seen by paediatric gastroenterologists. Despite the commonality of FGIDs, there remains significant stigma around these diagnoses among medical providers, patients and families. This is due to the absence of easily identifiable biological markers in FGIDs and the overlay with psychological and social factors contributing to symptom onset and maintenance. As such, the biopsychosocial model is essential in conceptualising, evaluating and treating FGIDs. The way in which medical providers explain FGIDs and the manner in which they collaborate with other specialists (eg, psychologists, dieticians, physical therapists, school nurses) is paramount to the patient and family acceptance of an FGID diagnosis and the success of subsequent treatment. The following review outlines paediatric FGIDs with a focus on FAP in adolescents, in particular within the context of the biopsychosocial approach to pathophysiology, diagnosis and treatment.

Demographic and health-related factors associated with reduced work functioning in people with moderate medically unexplained physical symptoms: a cross-sectional study

BACKGROUND

Medically unexplained physical symptoms (MUPS) are a leading cause of reduced work functioning. It is not known which factors are associated with reduced work functioning in people with moderate MUPS. Insight in these factors can contribute to prevention of reduced work functioning, associated work-related costs and in MUPS becoming chronic. Therefore, the aim of this study was to identify which demographic and health-related factors are associated with reduced work functioning, operationalized as impaired work performance and absenteeism, in people with moderate MUPS.

METHODS

Data of 104 participants from an ongoing study on people with moderate MUPS were used in this cross-sectional study. Ten independent variables were measured at baseline to determine their association with reduced work functioning: severity of psychosocial symptoms (four domains, measured with the Four-Dimensional Symptom Questionnaire), physical health (RAND 36-Item Health Survey), moderate or vigorous physical activity (Activ8 activity monitor), age, sex, education level and duration of complaints. Two separate multivariable linear regression analyses were performed with backward stepwise selection, for both impaired work performance and absenteeism.

RESULTS

Absenteeism rate rose with 2.5 and 0.6% for every increased point on the Four-Dimensional Symptom Questionnaire for domain 'depression' (B = 0.025, SE = 0.009, p = .006) and domain 'somatization' (B = 0.006, SE = 0.003, p = .086), respectively. An R² value of 0.118 was found. Impaired work performance rate rose with 0.2 and 0.5% for every increased point on the Four-Dimensional Symptom Questionnaire for domain 'distress' (B = 0.002, SE = 0.001, p = .084) and domain 'somatization' (B = 0.005, SE = 0.001, p < .001), respectively. An R² value of 0.252 was found.

CONCLUSIONS

Severity of distress, probability of a depressive disorder and probability of somatization are positively associated with higher rates of reduced work functioning in people with moderate MUPS. To prevent long-term absenteeism and highly impaired work performance severity of psychosocial symptoms seem to play a significant role. However, because of the low percentage of explained variance, additional research is necessary to gain insight in other factors that might explain the variance in reduced work functioning even better.

Acupuncture versus Various Control Treatments in the Treatment of Migraine: A Review of Randomized Controlled Trials from the Past 10 Years

BACKGROUND

Migraine is defined as a recurrent headache of moderate to severe intensity that seriously affects the quality of life. Recent clinical trials have confirmed that acupuncture is effective in treating migraine. We aimed to review the effectiveness of acupuncture in the treatment of migraine by comparing treatment and various control groups in accordance with the newly published guidelines for systematic reviews.

MATERIALS AND METHODS

The following databases were searched for relevant articles published from January 1, 2010 to December 31, 2019: Embase, PubMed, Medline, Cochrane Library, and four Chinese databases. The present review included randomized controlled trials in which acupuncture was the sole treatment or an adjunctive treatment for migraine. Two researchers independently conducted the study selection, data extraction, and quality assessment processes. Disagreements between reviewers were solved by discussion and data reanalysis. The quality of each included study was evaluated using the Cochrane Collaboration risk-of-bias assessment method and the Standards for Reporting Interventions in Controlled Trials of Acupuncture (STRICTA) checklist.

RESULTS

Forty-nine studies were analyzed and ranked based on the latest STRICTA and Cochrane Collaboration risk-of-bias assessment standards. The analysis revealed that acupuncture reduced headache frequency compared with no treatment (mean difference [MD] = -1.80, P < 0.00001, 95% confidence interval [CI] -2.34 to -1.26) and western medicine (MD = -1.75, P = 0.003, 95% CI -2.91 to -0.58). Headache frequency did not significantly differ between patients who received real acupuncture versus those who received sham acupuncture (MD = -0.64, P = 0.24, 95% CI -1.70 to 0.42).

CONCLUSION

The present review evaluated the current research on the use of acupuncture for migraine, compared with various control treatments. The evidence for the effectiveness of acupuncture in controlling migraine is still limited due to the low quality of the published studies.

Somatic Symptom Perception and Interoception

Abstract. Models of chronic somatic symptoms assume that abnormalities in interoception are related to the development and maintenance of symptom distress. Different models, however, disagree on the exact nature of the assumed abnormality: cognitive-behavioral models stress a hypervigilant cognitive style (predicting higher interoceptive accuracy) whereas predictive processing models assume a less detailed sensory processing (predicting lower interoceptive accuracy). This study aimed at testing the relationship between interoception and symptom perception. Using structural equation modeling, associations between cardiac interoception and symptom perception were tested in a sample of students ( n = 316) and a second heterogeneous sample ( n = 340, including 63 patients with either pathological health anxiety or a somatoform disorder according to DSM-IV). Stronger sensory symptom perceptions in the cardiorespiratory system were associated with lower interoceptive accuracy in sample 2. The findings are more in line with the predictive processing approach, suggesting less detailed and more biased interoception being associated with chronic somatic symptom distress.

The Role of Disease Conviction: Exploring Its Effects on Chest Pain and Anxiety-Related Models of Non-cardiac Chest Pain

The aim of this study was to investigate the role of disease conviction in the chest pain and life interference of patients with non-cardiac chest pain (NCCP), after controlling for anxiety sensitivity and body vigilance. While all three psychological constructs are theoretically implicated and empirically associated with the experience of NCCP, no research has examined the influence of disease conviction in the context of other relevant constructs. The sample included 229 participants with NCCP who were recruited after a medical evaluation failed to elicit an organic explanation for their chest pain. Hierarchical regression analyses revealed that while anxiety sensitivity significantly predicted chest pain severity and interference, only body vigilance contributed significant additional variance to chest pain severity, and only disease conviction contributed significant additional variance to chest pain interference. While anxiety sensitivity, body vigilance, and disease conviction all appear to affect those with NCCP, it seems that their impact is manifest in different domains (i.e., pain perception vs. psychosocial impairment).

Breathlessness in palliative care: a practical guide

Breathlessness is a common symptom for patients with terminal illness and can be challenging to manage. Breathlessness is acknowledged to be an interaction between body and mind. There are a variety of pharmacological and non-pharmacological therapies that can be beneficial. The holistic assessment of the breathlessness patient should enable delivery of a tailored package of care focused on relief of symptoms.

Medically Unexplained Symptoms and Attachment Theory: The BodyMind Approach®

This article discusses how The BodyMind Approach^® (TBMA) addresses insecure attachment styles in medically unexplained symptoms (MUS). Insecure attachment styles are associated with adverse childhood experiences (ACEs) and MUS (Adshead and Guthrie, 2015) and affect sufferers’ capacity to self-manage. The article goes on to make a new hypothesis to account for TBMA’s effectiveness (Payne and Brooks, 2017), that is, it addresses insecure attachment styles, which may be present in some MUS sufferers, leading to their capacity to self-manage. Three insecure attachment styles (dismissive, pre-occupied and fearful) associated with MUS are discussed. TBMA is described and explanations provided of how TBMA has been specifically designed to support people’s insecure attachment styles. Three key concepts to support insecure attachment styles involved in the content of TBMA are identified and debated: (a) emotional regulation; (b) safety; and (c) bodymindfulness. There is a rationale for the design of TBMA as opposed to psychological interventions for this population. The programme’s structure, facilitation and content, takes account of the three insecure attachment styles above. Examples of how TBMA works with their specific characteristics are presented. TBMA has been tested and found to be effective during delivery in the United Kingdom National Health Service (NHS). Improved self-management has potential to reduce costs for the NHS and in General Practitioner time and resources.

Hospitalized Patients with Medically Unexplained Physical Symptoms: Clinical Context and Economic Costs of Healthcare Management

Medically Unexplained Physical Symptoms (MUPS) are physical symptoms without a medical explanation. This study collected data from hospitalized patients presenting MUPS, aiming to draw a clinical and socio-demographic profile of patients with MUPS, to explore psychopathological correlations of Somatic Symptoms Disorder (SSD) diagnosis, and to estimate economic costs related to hospital management for MUPS. The cross-sectional study consisted in the evaluation of data referring to hospitalized patients admitted between 2008 and 2018 in a teaching hospital in Northern Italy. A total of 273 patients presenting MUPS have been hospitalized. The sample showed a prevalence of female, married and employed patients. The most frequent wards involved are Neurology, Internal Medicine and Short Unit Stay. The most common symptoms found are headache, pain, syncope and vertigo. There is no evidence that a history of medical disease is associated with a diagnosis of SSD. A personality disorder diagnosis in patients with MUPS was associated with increased probability of having a diagnosis of SSD. A marginally significant positive association emerged with anxiety disorders, but not with depressive disorder. The overall estimated cost of hospitalization for patients with MUPS is 475'409.73 €. The study provides the investigation of a large number of patients with MUPS and a financial estimate of related hospitalization costs.

Prevalence of medically unexplained symptoms in adults who are high users of health care services: a systematic review and meta-analysis protocol

INTRODUCTION

Medically unexplained symptoms (MUS) are common in primary-care and secondary-care settings. Persistent symptoms of MUS are associated with a variety of poor outcomes including increased disability, poor quality of life and high healthcare costs. The aim of this systematic review is to review the relevant literature to determine the prevalence of MUS in patients who are high users of healthcare and/or who accrue high healthcare costs.

METHODS AND ANALYSIS

This review will include studies with cases that are either high users of general healthcare or are patients who accrue high healthcare costs, aged ≥18 years and where a recognised measure of MUS, either a standardised clinical interview or questionnaire, was employed. The following citation databases MEDLINE, PsycINFO, EMBASE, CINAHL, PROSPERO and the Cochrane library will be systematically searched from inception to 30 June 2018. The Cochrane library was included because of the significant proportion of non-observational studies currently published in the database. The prevalence of MUS and associated disorders along with the costs or use of healthcare associated with the presence of MUS will be estimated with 95% CI. If possible, study results will be pooled into a meta-analysis. However, if heterogeneity is high, data analysis will be presented descriptively.

ETHICS AND DISSEMINATION

Ethical approval is not required for this systematic review since only data from existing studies will be used. Results of this review will be disseminated in peer-reviewed publications and at national and international conferences.

PROSPERO REGISTRATION NUMBER

CRD42018100388.

Satisfaction With Specific and Nonspecific Diagnoses

PURPOSE

Nonspecific upper extremity illnesses (eg,. wrist pain, forearm pain)-where no objectively verifiable pathology is detectable-are common and usually self-limiting. For some patients, a nonspecific diagnosis can contribute to mistrust and disappointment.

METHODS

This study tested the primary null hypothesis that there is no difference in mean overall satisfaction between patients given a specific compared with a nonspecific diagnosis. Second, we assessed factors associated with satisfaction and with nonspecific upper extremity diagnosis.

RESULTS

There was no significant difference between mean satisfaction with nonspecific and specific diagnoses in bivariate analysis. However, when treated as a categorical variable, 22% of the patients with a nonspecific diagnosis had a satisfaction score of 8 or lower compared with 11% of the patients given a specific diagnosis. First visit and greater pain intensity were significantly associated with a nonspecific diagnosis in bivariate analysis. In the multivariable models, no factors were independently associated with satisfaction or with nonspecific diagnoses.

CONCLUSIONS

Although nonspecific diagnoses can sometimes be frustrating for both physician and patient, in this small study using a satisfaction measure with a strong ceiling effect, they were no less satisfying to patients on average and corresponded with slightly greater pain intensity than specific diagnoses.

CLINICAL RELEVANCE

The degree to which nonspecific diagnoses (perhaps in combination with compassionate care and incremental monitoring) can be part of a satisfying treatment experience merits additional investigation.

[Importance of functional diagnostics in gastroenterology]

In this review article important and frequently used investigation methods for gastrointestinal functional diagnostics are presented. Some other rarely used special investigations are also explained. The hydrogen breath test is simple to carry out, ubiquitously available and enables the detection of lactose, fructose and sorbitol malabsorption. Furthermore, by the application of glucose, the test can be carried out when there is a suspicion of abnormal intestinal bacterial colonization and using lactulose for measuring small intestinal transit time. The ¹³C urea breath test is applied for non-invasive determination of Helicobacter pylori infections and assessment of gastrointestinal transit time, liver and exocrine pancreas functions. The secretin cholecystokinin test was the gold standard for the detection of exocrine pancreas insufficiency. However, measurement of pancreatic elastase in stool is less invasive but also less sensitive. Scintigraphy and capsule investigations with pH and temperature probes constitute important methods for determination of gastric emptying, intestinal and colon transit times. For evaluation of constipation panoramic abdominal images are taken after intake of radiologically opaque markers (Hinton test). For the diagnosis of functional esophageal diseases manometry is indispensable. In addition, manometry is only occasionally used for diagnosing a dysfunction of the sphincter of Oddi, due to the danger of inducing pancreatitis. A 24 h pH-metry is applied for the detection of non-erosive gastroesophageal reflux disease and, if necessary, with impedance measurements. Recent investigation procedures, e. g. specific MRI sequences, sonographic determination of gall bladder ejection fraction, analysis of gastric accomodation or real-time lumen imaging, require further evaluation prior to clinical application.

Theoretical framework for "unexplained" dizziness in the elderly: The role of small vessel disease

In this paper we postulate that disruption of connectivity in the human brain can lead to dizziness, a symptom normally associated with focal disease of the vestibular system. The specific case that we will examine is the development of "unexplained" dizziness in the elderly-an extremely common clinical problem. Magnetic resonance imaging of the brain in the elderly usually show variable degrees of multifocal micro-angiopathy (small vessel white matter disease, SVD); thus, we review the literature, present a conceptual model and report preliminary quantitative EEG data in support of the hypothesis that such hemispheric SVD leads to central nervous system disconnection that elderly patients report as dizziness. Loss of connectivity by age-related build-up of SVD could lead to dizzy feelings through one or more of the following mechanisms: disconnection of cortical vestibular centers, disconnection between frontal gait centers and the basal ganglia, and disconnection between intended motor action (efference copy) and sensory re-afference. Finally, we propose that SVD-mediated dysregulation of cerebral blood pressure is linked to dizziness during standing and walking in elderly patients with "unexplained" dizziness.

Effectiveness of care in acute dizziness presentations

Purpose

This study aims to evaluate whether a management algorithm has improved the effectiveness of care for dizzy patients at Umeå University Hospital.

Methods

This was an interventional study using medical records to collect data for acute dizziness presentations before (period 1, 2012–2014) and after (period 2, 2016–2017) the implementation of a management algorithm. Outcomes were changes in a set of pre-defined effectiveness markers and health economic effects.

Results

Total n = 2126 and n = 1487 acute dizziness presentations were identified in period 1 and 2, respectively. Baseline characteristics were similar. The proportion of patients undergoing Dix–Hallpike testing increased, 20.8% [95% confidence interval (CI) 18.8–23.0%] vs. 37.7% (95% CI 35.2–40.2%), as did BPPV diagnoses, 7.6% (95% CI 6.6–8.8%) vs. 15.3% (95% CI 13.6–17.3%). Hospitalization became less common, 61.5% (95% CI 59.4–63.6%) vs. 47.6% (95% CI 45.1–50.2%). The proportion undergoing any neuroradiological investigation decreased, 44.8% (95% CI 42.7–47.0%) vs. 36.3% (95% CI 33.8–38.7%) with a shift from CT to MRI, with unchanged sensitivity for diagnosing cerebrovascular causes. The average cost for the care of one dizzy patient decreased from $2561 during period 1 to $1808 during period 2.

Conclusions

This study shows that the implementation of a management algorithm for dizzy patients was associated with improved effectiveness of care.

The Interrelations Between Different Causes of Dizziness: A Conceptual Framework for Understanding Vestibular Disorders

Background:

According to population-based studies that estimate disease prevalence, the majority of patients evaluated at dizziness clinics receive a single vestibular diagnosis. However, accumulating literature supports the notion that different vestibular disorders are interrelated and often underdiagnosed.

Objective:

Given the complexity and richness of these interrelations, we propose that a more inclusive conceptual framework to vestibular diagnostics that explicitly acknowledges this web of association will better inform vestibular differential diagnosis.

Methods:

A narrative review was performed using PubMed database. Articles were included if they defined a cohort of patients, who were given specific vestibular diagnosis. The interrelations among vestibular disorders were analyzed and placed within a conceptual framework.

Results:

The frequency of patients currently receiving multiple vestibular diagnoses in dizziness clinic is approximately 3.7% (1263/33 968 patients). The most common vestibular diagnoses encountered in the dizziness clinic include benign paroxysmal positional vertigo (BPPV), vestibular migraine, vestibular neuritis, and Ménière’s disease.

Conclusions:

A review of the literature demonstrates an intricate web of interconnections among different vestibular disorders such as BPPV, vestibular migraine, Ménière’s disease, vestibular neuritis, bilateral vestibulopathy, superior canal dehiscence syndrome, persistent postural perceptual dizziness, anxiety, head trauma, and aging, among others.

Interprofessional care improves health-related well-being and reduces medical costs for chronic pain patients

This study evaluated whether patients with somatic symptom disorder, expressing chronic pain that could not be attributed to a medical condition, would benefit from an 8-week inpatient residence at a psychiatric ward. In the 1-year follow-up after termination the authors examined the extent to which the integrated treatment decreased patient costs. A total of 106 patients participated in the follow-up and reported a significant improvement in their general health (Cohen's d = 1.5-2.21), a decrease in impairment due to pain (d = 2.24), and a decrease in symptom severity (d = 1.29). They took fewer medications and sick days, reported fewer hospital stays and medical examinations, and consulted and changed physicians and outpatient clinics less often (d = 0.55-1.1). The average cost per patient was cut in half, down to € 80,000/$96,000 per year. From a clinical standpoint, group analysis that focused on aggression was the most effective intervention.

Frequent attenders in general medical practice in Italy: a preliminary report on clinical variables related to low functioning

BACKGROUND

Frequent attenders (FAs), defined as patients reporting a disproportionate number of visits to general practitioners (GPs), may represent up to one-third of GP patients responsible for a high burden of care not always justified by the severity of the medical condition. The aim of this study was to explore sociodemographic and clinical characteristics of FAs of GP in Italy with particular attention to functional impairment.

METHODS

A total sample of 75 FAs (defined as individuals who had consulted GPs 15 times or more during 2015) of GPs of three primary care centers (Pisa, Livorno, and Lucca) in Italy were enrolled and assessed by sociodemographic scale, Structured Clinical Interview for DSM-5 (SCID-5), global functioning (Global Assessment of Functioning [GAF]), illness behavior and perceived health (Illness Behavior Inventory), and somatic comorbidity (Cumulative Illness Rating Scale).

RESULTS

Most of the sample were females, middle aged, married, or cohabiting, with low levels of education. One-third of FAs was low functioning (LF; GAF score <70), with no differences in the sociodemographic variables. Approximately 70.3% of the patients reported a current SCID diagnosis, in particular, major depressive disorder, somatic symptom disorders, and panic disorder, all being more frequent in LF patients. Half of the patients were taking a psychopharmacological therapy, mostly benzodiazepines (BDZs).

CONCLUSION

Most FAs were female with current medical disorders, and LF. All claimed to be worried about their own health and perceived themselves as more impaired also regarding the health perception and social role. LF patients were, or had been more likely to be under psychopharmacological treatment. FAs seem to constitute a special population that should be carefully evaluated for mental disorders and appropriate treatment.

Medically Unexplained Physical Symptoms in Hospitalized Patients: A 9-Year Retrospective Observational Study

Introduction: "Medically Unexplained Physical Symptoms" (MUPS) defines a subgroup of patients presenting physical symptoms of unclear origin. The study aims to profile clinical and socio-demographic characteristics of patients with MUPS. Materials and Methods: This 9-years observational retrospective study assesses all patients admitted between 2008 and 2016 in the divisions of neurology and gastroenterology. Socio-demographic and clinical variables were evaluated: gender, age, diagnosis or diagnostic hypothesis, presence of psychiatric comorbidities, psychiatric evaluation, pharmacological treatment, number of admissions/visits. Results: Among 2,479 neurological patients 10.1% presented MUPS. Patients were more frequently women (63.5%), with a mean age of about 50 years. Reported symptoms were headache (22.6%), seizures (8.7%), vertigo (5.9%), fibromyalgia (5.5%), paresthesia (5.1%), visual disturbances (5.1%), amnesia (3.9%). The diagnosis was somatoform disorder in 6.3% of cases, conversion disorder in 2.7%, and somatic symptom disorder in 1.5% only. 2,560 outpatients were evaluated in gastroenterology division. 9.6% (n = 248) of patients had MUPS; 62.1% of them were women. The most affected age group ranged between 15 and 45 years. The most frequent diagnoses were functional abdominal pain (50%), dysmotility-like dyspepsia (26.6%), irritable bowel syndrome (10.4%), meteorism of unknown cause (2.4%), hiccup (1.6%), burning mouth syndrome (1.2%). No patients received a diagnosis of somatic symptom disorder. Discussion: Patients with MUPS are more often women, of middle age, with self-referred specific symptomatology. While neurological patients received a diagnostic-therapeutic approach in line with the literature, gastroenterological patients mainly received antipsychotics. A more comprehensive assessment and a development of psychoeducational interventions are needed to improve patients' quality and quantity of life.