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Beyond Rheumatoid Arthritis Evaluation: What are We Missing?

Authors Espinoza G, Maldonado G, Narvaez J, Guerrero R, Citera G, Rios C

Received 10 January 2021

Accepted for publication 5 March 2021

Published 25 March 2021 Volume 2021:13 Pages 45—55

DOI https://doi.org/10.2147/OARRR.S298393

Checked for plagiarism Yes

Review by Single anonymous peer review

Peer reviewer comments 2

Editor who approved publication: Professor Chuan-Ju Liu

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Gianna Espinoza,1 Genessis Maldonado,2 Jemina Narvaez,1 Roberto Guerrero,1 Gustavo Citera,3 Carlos Rios1

1Rheumatology Department - Universidad Espiritu Santo, Samborondon, Ecuador; 2Internal Medicine Department - Loyola MacNeal Hospital, Berwyn, United States of America; 3Rheumatology Department – Instituto Nacional de Rehabilitación Psicofísica, Buenos Aires, Argentina

Correspondence: Genessis Maldonado Tel +708-783-9100
Email [email protected]

Abstract: Rheumatoid Arthritis (RA) is a chronic inflammatory autoimmune systemic disease that preferentially affects small and large joints with a progressive course and can become deforming and disabling. In recent years, much progress has been made in the evaluation of inflammation and disease activity, however, there are other factors that have a high impact on the quality of life of these patients, such as depression, anxiety, fatigue, sleep disorders, suicidal behavior, fibromyalgia, sexual activity, sarcopenia, frailty, cachexia and obesity that are not always evaluated by rheumatologists. This review shows that the evaluation and timely detection of these aspects in patients with RA could interfere with the prognosis and improve their quality of life.

Keywords: rheumatoid arthritis, depression, fibromyalgia, sexual activity, sarcopenia, quality of life

Introduction

Rheumatoid Arthritis (RA) is a chronic inflammatory autoimmune systemic disease that preferentially affects small and large joints with a progressive course; and without a proper diagnosis and treatment it can become deforming and disabling.1

The worldwide prevalence of RA is 0.4 to 1.3% and the incidence rate is 0.5 to 1%2,3 and is considered one of the 50 most common diseases that contribute to global disability.4 According to a meta-analysis, RA may be affecting more than 1.3 million people in the United States and 15 million people worldwide.5 The prevalence of seropositive RA is estimated to be 50–70.3 The prevalence is higher in women compared to men (3:1).6

RA is characterized by having extra-articular manifestations such as rheumatoid nodules, vasculitis, and systemic comorbidities such as cardiovascular diseases and pulmonary affectations.7 In addition, it is common to observe psychological or cognitive comorbidities such as anxiety, depression, loss of self-esteem, hopelessness and suicidal thoughts that affect the quality of life of patients.8

Likewise, somatic symptoms such as chronic pain, fatigue, sleep disturbances and loss of appetite are triggers that lead to sarcopenia, frailty and cachexia resulting in functional disability of patients.9 It has been shown that RA patients are at higher risk of presenting anxiety and depression, which worsens the state of their disease and also the response to conventional treatment.10

The importance of the correct evaluation and identification of these emotional disorders has been the subject of lesser research in the rheumatology field and many times they are underdiagnosed, causing the patient not to have optimal results in their clinical improvement or remission.1,6

The purpose of this review is to evaluate and identify psychiatric comorbidities associated with RA that lead to deterioration in the quality of life and, in turn, identify other manifestations that are not normally evaluated in the rheumatology consult such as sarcopenia, frailty, and cachexia, in order to optimize the clinical management.

Search Methodology

Search Strategy

A systematic search for documents was carried out in the following databases: PubMed, EMBASE, Cochrane Library. Keywords included “Rheumatoid Arthritis”, “Depression”, “Anxiety”, “Suicidal thoughts”, “Suicidal behavior”, “Self-harm”, “Fatigue”, “Quality of Sleep”, “Quality of Life”, “ Rheumatoid cachexia”, “Obesity”, “Fibromyalgia”, “Sarcopenia”, and “Frailty”. The search strategy included free text and MeSH terms. Additional studies were sought from the reference list of certain primary studies and relevant reviews.

Study Selection

3963 articles were found, of which 139 were selected by peer review. The selection of articles was limited to studies and systematic reviews in humans and adults, in English and Spanish. Articles reporting associations between RA and depression, anxiety, fatigue, sleep disturbances, quality of life, suicidal behaviors, weight alterations, rheumatoid cachexia, obesity, fibromyalgia, sarcopenia, and frailty were selected. Articles comparing the mentioned variables with other rheumatological diseases that were not RA were excluded.

Anxiety and Depression in RA

Depression is considered a mental disorder characterized by sustained and long-term sadness accompanied by loss of interest in daily activities. It affects 1 in 5 people throughout their lives and is the leading cause of disability around the world.11 It is mostly associated with chronic diseases, autoimmune diseases or mood disorders such as anxiety.12 Although depression and anxiety are closely grouped, they are considered distinct conditions.

Among some of the complications or risk factors that RA presents, depression is one of the entities with the greatest complexity in its management and although its pathophysiology is not clearly explained, it has been shown that immune dysfunctions and inflammatory responses are related to the central nervous system (CNS), linking these changes to neuro-psychiatric symptoms.13 The prevalence of depression in RA is approximately 38%14 and is associated with increased disease activity, disability, increased morbidity and mortality, loss of social and recreational activities,15 lower adherence to treatment, sleep problems, higher risk of suicide, and lower probability of achieving complete remission of symptoms.16 In fact, it predicts incapacity for work in the early stages of the disease.5

A study of 1015 patients, estimated the degree of disagreement between RA patients and physicians at the time of diagnosing depression and/or anxiety; the percentage reported by patients was 22% and that reported by rheumatologists was 10.5%.17 According to Zhang et al the prevalence of depression in patients with RA is estimated between 9.5 to 41.5%,18 which is two to three times greater than the general population.7 Likewise, Intriago et al indicated that the most frequent comorbidity in patients with RA was depression in 42.5%.19 Peterson et al identified a prevalence of depression of 46% and anxiety of 24% in RA patients from the United States and European countries. It was evidenced that the highest prevalence of signs of anxiety and depression were found in those patients from ethnic minorities, with low economic income, low-class Latin American immigrants and with an added comorbidity (mostly hypertension).20

The concomitance between depression and autoimmune inflammatory diseases has been recorded for a long time, but has not yet been fully understood.13 However, it has been shown that there is a relationship between the activation of the peripheral immune response and changes in the central nervous system (Figure 1).13 Abdel-Ahad et al indicated that elevated serum levels of interleukin-1 receptor antagonist (IL1RA) and IL-17 in RA patients correlate with the severity of depression and other subsequent disorders such as insomnia, loss of appetite, anorexia, fatigue, decreased concentration, dysphoria, and libido.21 On the other hand, Li et al demonstrated an association between depression and disease activity using inflammatory markers and cytokines. Those patients with RA and high levels of interleukin-6 (IL-6) presented more depression compared to the control group, showing that pro-inflammatory cytokines contribute to the development of this entity.17

Figure 1 Impact of immune activation on the CNS and the relationship with depression.

Besirli et al demonstrated using the Hospital Anxiety and Depression Scale (HADS), DAS-28 and Short Form-36 (SF-36) that the worsening of the prognosis of patients with RA is related to the exacerbation of symptoms due to stress, which causes resistance to glucocorticoid, and subsequently to develop mood disorders such as anxiety, depression and in some cases suicidal ideas.6

Yaser et al concluded that RA activity is directly proportional to the development of depression and anxiety.22 According to Sleath et al only 1 in 5 patients with RA and severe depression agree to talk about their emotional disorder during the medical visit, the rest go unnoticed.23 Furthermore, social isolation due to joint deformities, self-loathing, low self-esteem, and anxiety are negative psychosocial factors involved in the depressive psychopathology of RA, while optimism and social support or support groups are protective factors against depression.21

Suicidal Behavior in Rheumatoid Arthritis

Suicidal behavior encompasses suicidal ideas or thoughts, suicidal plan, suicide attempt, and suicide. Suicidal thought is defined as an inclination or idea of self-harm or chosen behavior to end one’s life, the suicide plan comprises the formulation of a method by which the person attempts to self-harm or die, the suicide attempt is determined as the act of self-harm with the purpose of dying and suicide is defined as the deliberate act of ending one’s life and is the 13th leading cause of death globally.24

Besirli et al found a significant correlation between anxiety (HADS-A) [p <0.002] and depression (HADS-D) [p <0.001] with the presence and intensity of suicidal behavior, using the Beck Scale for Suicidal Ideation (BSSI), where the BSSI score was higher in patients with anxiety/depression, than in those who did not experience these emotional disorders.6 On the other hand, chronic diseases such as rheumatic diseases are also considered a risk factor for the development of suicidal behaviors.24 Marrie et al demonstrated that common mental disorders have a greater effect on mortality risk and suicide risk in RA than in depression alone.25

Kuriya et al showed that patients with RA tend to self-injure 1.4 times more than those without the disease, the most common method used to injure themselves was through the ingestion of poisons followed by the use of sharp objects.26

Treharne et al showed that approximately 11% of patients with RA have manifested suicidal thoughts according to the Nottingham Health Profile (NHP), of which those who had a longer duration of the disease (> 4 years) were more likely to manifest them than those with an earlier disease course (<2 years).27 Li et al along with Treharne et al found that suicidal ideas were more prevalent in females in 11.7% to 14%, compared to males with 0.0% and 3%,27,28 the mean age was 56 years and the mean duration of the disease was approximately 10.9 years.28

Treharne et al indicated that depression detected by HADS is the most important factor of all, since 30% of patients with RA and depression experienced suicidal thoughts [OR 4.47, P <0.05].27 Hewlett et al identified that women around the world express that they have a flare of the disease in a similar way, they expressed it with phrases such as “I am in a lot of pain, I want to die” which reflects the presence of emotional distress as a consequence of the combination of physical symptoms and functional disability. This emotional distress is accompanied by irritability and frustration, despair and suicidal behavior.29

Fatigue and Sleep Quality in RA

Fatigue can be defined in two ways: physical fatigue, meaning physical exhaustion or reduced energy, and cognitive fatigue, which corresponds to alterations in thinking, memory or concentration. It is not considered a proper symptom to diagnose RA,30 little is known about its etiology31 and there is no clear definition accepted in RA.29 However, it is manifested in more than 50% of cases and interferes with both the work capacity and the patient’s own burden of the disease.30 Nikolaus et al indicate that severe fatigue manifests more frequently in females.32

In RA, fatigue is considered multifactorial and is associated with symptoms and signs of the disease, functional capacity, emotional, cognitive and social functioning.32 Nicassio et al proposed that certain factors directly contribute to the development of fatigue, such as disease activity, chronic pain and excessive inflammation, of which other contributing factors are triggered such as changes in mood and decreased quality of sleep (Figure 2).30

Figure 2 Factors that affect the development of fatigue.

In patients with RA, sleep quality is altered by discontinuity or sleep deprivation and is related to depression, increased disease activity, exacerbation of pain perception and fatigue.33 Irwin et al indicated that the pathophysiology of sleep disturbance is given by an increase in the signaling of nuclear factor kappa-B (NF-kB) that induces the expression of IL-6 establishing a state of chronic hyperalgia, therefore, the relationship between sleep disorders and pain is bidirectional.33

A study in Poland demonstrated the prevalence between insomnia and depression in patients who have been diagnosed with RA, patients with OA and in patients from a control group. The results obtained for depression were 75.8%, 50% and 23.5% respectively and for insomnia 71%, 32% and 33%. Which means that patients with a chronic underlying disease are the group with the highest risk of experiencing sleep disorders and consequently alterations in mental health.34

Rezaei et al showed that poor sleep quality occurs more frequently in RA patients due to increased disease activity, chronic pain, depression, and fatigue.35 Furthermore, according to Westhovens et al, Poor medical controls in these patients were significantly associated with an increase in daytime sleepiness and a deterioration in sleep quality.36

Weight Changes in RA

Chronic inflammatory and autoimmune diseases have a significant influence on body composition.37 In addition to joint damage and extra-articular manifestations in RA, other changes such as weight loss in the elderly, rheumatoid cachexia and obesity have been noted. Low BMI levels have been shown to be associated with decreased functional activity, fatigue, higher mortality, and adverse events in RA patients.38

Persistent fatigue and decreased physical activity are reflected in the sedentary behavior of RA patients. According to Fenton et al sedentary lifestyle exacerbates inflammation levels worsening quality of life.37

Cachexia is a condition characterized by increased catabolic activity (expenditure of energy at rest) and loss of lean mass despite adequate food intake during a severe chronic disease associated with a high degree of inflammation. According to Challal et al two-thirds of RA patients were affected with rheumatoid cachexia,39 which is a clinical entity of RA recognized as the composition of a low muscle mass without weight loss and its global prevalence varies between 15 to 32%.40

Kremers et al indicated that the highest cardiovascular risk and highest rate of erosive disease in RA patients correspond to those with a BMI less than 18.5 kg/m2.41 Despite the fact that the body disorders in RA have a vicious circle where there is a multifactorial contribution given by the activity of the disease, the nutritional diet and the chronic treatment with corticosteroids42 Santo et al indicated that rheumatoid cachexia may be induced by excess IL-1 and TNF-a and is associated with an increased risk of physical disability, morbidity and mortality.40

It is difficult to diagnose rheumatoid cachexia in the first visits because the loss of lean mass is compensated by the increase in body fat and the BMI is not altered further even if the patient has a normal diet,39 causing underdiagnoses as there is no consensus on clinical criteria.40

Obesity and RA

One in ten people in the world is classified as obese.43 According to the WHO, obesity is defined as a BMI greater than or equal to 30 kg/m2, which is associated with a greater probability of developing chronic comorbid diseases such as diabetes mellitus, coronary heart disease, hypertension and RA.44,45 Obesity alone increases the production of pro-inflammatory cytokines in visceral adipose tissue, which rebounds on a chronic systemic inflammatory load in patients with RA.46

Kreps et al studied patients with RA who were also overweight and obese, they identified that weight loss greater than 5kg is associated with a reduction in the clinical scale of disease activity (CDAI) by 1.15 points (95% CI 0.42–1.88).47 Furthermore, they showed that those patients with weight loss at normal BMI levels are 3 times more likely to improve their disease activity.47

The impact of obesity on the response to treatment in patients with RA has been investigated in the last two decades, where studies indicate a negative effect in obese or overweight RA patients using cDMARDs with an inability to achieve a remission or low disease activity after 6 months of treatment.48,49 Furthermore, according to Ajeganova et al a study of 1596 patients with RA and obesity were associated with very high DAS-28 scores and a lower chance of remission after a 9.5-year follow-up.50 Thus, Passot et al, indicated that population pharmacokinetic studies have found that a high BMI is related to an accelerated clearance of anti-TNF agents, resulting in a decrease in the bioavailability of the drugs,51 therefore, the use of infliximab in this type of patient is less likely to achieve an appropriate remission of the disease.52

Many authors recommended developing personalized treatments based on predictive factors for the correct choice of a first-line therapy in patients with RA who have a high BMI.51

Fibromyalgia in RA

Fibromyalgia (FM) is one of the best-known comorbidities in Rheumatoid Arthritis. It is characterized by chronic pain due to a decrease in pain threshold, sleep disturbances and mood disorders. Its prevalence in patients with RA is approximately 21% with a range of 4.9–52.4%, compared to the general population where the prevalence of FM is 2–8%.53 The concomitant presence of FM in RA patients alters the functional assessment. This is reflected in high levels of the disease assessment scales and increases the intensity of RA treatment, even with the most frequent use of biologics.54 Shresher et al studied 130 women with rheumatoid arthritis of which 40% met diagnostic criteria for fibromyalgia and in turn this group of patients had a longer duration of the disease, more pain measured using VAS and greater disease activity measured by DAS28, CDAI in comparison to patients without fibromyalgia.55

Chronic inflammation creates a transition from peripheral pain to central pain that is perceived as fibromyalgia symptoms. Pro-inflammatory cytokines TNF and IL-6 have been identified as involved in central pain processing and increased generalized sensitivity.55

The impact of fibromyalgia in patients with RA is important, since it has been shown that patients with fibromyalgia and RA have more depressive episodes, anxiety, panic attacks and post-traumatic stress than those patients with only RA.56–58 Pain is the most important independent factor together with the perception of disease activity in these patients.

Salaffi et al analyzed the influence of FM in achieving remission in patients with long-standing RA. They studied 117 patients with RA, of which 17% had fibromyalgia and none reached remission, the logistic regression analysis identified that the failure of remission measured by SDAI is due to the presence of FM.59 This behavior was similar in the ESPOIR study, in which patients with RA and FM did not reach remission and were shown to have a more aggressive disease activity than those who only had RA.60

Chakr et al showed that patients with RA and FM required higher doses of tricyclic antidepressants, leflunomide and prednisone compared to patients who only had RA, since the group of patients with concomitant FM had a moderate/high disease activity and a rate of 0% remission at the beginning of the study, however, during follow-up an increase in the doses for FM and RA was performed and an increase in the remission rate of 18.8% was observed.61 In addition, patients with RA and FM showed significant improvement on the DAS28 and Health Assessment Questionnaire (HAQ) scales when the treatment for FM was adjusted to the specific conditions of each patient.

Sexual Activity

The World Health Organization (WHO) recognizes sexual health as an essential part of general health and an important part of human well-being.62 According to the International Classification of Functioning, Disability and Health (ICF), sexual health encompasses 2 areas: intimate relationships and sexual functions, both of which can be affected in patients with RA.63

Sexual dysfunction is a common health conflict that affects up to 50% of the population and in most cases it can be correlated with age.64 Sexual dysfunction can be measured by scores; Sexual Health Inventory for Men for males, the Female Sexual Function Index (FSFI) for females65 or the Changes in Sexual Functioning Questionnaire (CSFQ) for both.

In a study with 329 RA patients, the CSFQ score indicated general sexual dysfunction in 58.1% of the females and 33.8% of the males; Of which 37.6% of RA patients felt that rheumatoid disease had complicated their sexual life and 46.5% stated that fatigue is directly related to the negative impact on their sexual activity.66

There are few studies on the impact of RA on sexual activity, and it is not a common approach during routine clinical visits with the rheumatologist, since it is not part of the evaluation of the quality of life of patients with RA,62 but they frequently affect the decrease in sexual desire, difficulties to perform the sexual act and decrease in sexual satisfaction.67 These rheumatoid disorders can even lead to a negative body image and a deterioration of self-esteem.62

According to Saad et al, the prevalence of sexual dysfunction in women with RA is 49.3% and is evaluated by the FSFI which measures 6 different areas of female sexuality: arousal, lubrication, desire, satisfaction, orgasm, and pain.67 In a cross-sectional study of 71 women with RA, all areas of the FSFI were significantly affected, especially orgasm, desire and arousal. In addition, sexual dysfunction was correlated with pain, the age of the patient (p = 0.049), the age of the partner (p = 0.013), number of nocturnal awakenings (p = 0.02), morning stiffness (p = 0.010), fatigue (VASP) (P = 0.001) and joint tenderness (p = 0.05). The age of the patients and pain were predictive factors in terms of alterations in sexual functioning.67

A comparative study between women with RA and healthy women in Turkey showed that sexual dysfunction was significantly worse in women with RA in the areas of lubrication, desire, satisfaction and arousal on the FSFI (p = 0.001). In addition, it was demonstrated that women with RA and sexual dysfunction also had alterations in the parameters of quality of life (p = 0001).64

Puchner et al used the Changes in Sexual Functioning Questionnaire-short form 14 (CSFQ-14) and found a strong association of sexual dysfunction in RA patients compared to the healthy control group (p <0.0001). On the other hand, a significant relationship was observed between BDI and sexual dysfunction.62

According to Twisttmann Bay et al, There is a large majority of men (85.5%) and women (93.5%) with RA who claim not to have discussed issues of sexual dysfunction with the health professional in the last 5 years.66 It is concluded that sexual dysfunction is more prevalent in women than in men with RA, affecting all areas of sexual function and is also forgotten in daily clinical practice by rheumatologists with clinicians.

Sarcopenia in RA

According to the European Working Group on Sarcopenia in Older People (EWGSOP), sarcopenia is defined as loss of muscle mass and its diagnosis should be based on the documentation of decreased muscle mass, low muscle strength and/or decreased physical performance.68 It is associated with disability and is an independent risk factor for falls.

Mochizuki et al studied the prevalence of sarcopenia in Japanese patients with RA, 29.6% of the population presented diagnostic criteria for sarcopenia. Among the associated factors were advanced age, body mass index (low weight, normal weight), elevated levels of c-reactive protein (CRP), and decreased bone mass.69

In RA, the cause of muscle loss is due to chronic inflammation, decreased physical activity, chronic pain, and increased energy expenditure during rest. A study by Giles et al showed that patients with RA have a higher prevalence of sarcopenia,70 21.4% of women with RA and 33.3% of men with RA had sarcopenia compared to 7.7% and 22.2% in the control group, respectively. Women with RA demonstrated greater body fat at 42% compared to 38% in the control group. In addition, it was shown that women with RA and normal body weight were 3 times more likely to develop sarcopenia compared to the control group (OR 3.41 95% CI: 1.51–7.69).70 Petermann-Rocha et al identified that women with RA and low weight were almost eight times more likely to have sarcopenia compared to individuals with normal weight (OR: 7.60 95% CI: 6.08–9.50).71

Despite the fact that one of the diagnostic criteria for sarcopenia is age over 65 years, Mochizuki et al showed that having RA predisposes to the loss of muscle mass in young patients. They studied 87 patients with RA with a mean age of 51 years where 10.3% had sarcopenia, the factors associated with the development of sarcopenia by multivariate analysis were elevated disease activity and elevated erythrocyte sedimentation levels (OR 2.02 95% CI. 1.04–3.91).69

Munro et al demonstrated an inverse correlation between C-reactive protein (CRP) levels and muscle mass,72 Interleukin 1ß is believed to cause a reduction in appetite and together with interleukin-6 increases the liver’s production of inflammatory markers. Dogan et al observed that women with rheumatoid arthritis and sarcopenia had higher CRP levels compared to the control group.73 In addition, the Longitudinal Aging Study Amsterdam demonstrated the role played by interleukin-6 and CRP, since they are associated with loss of muscle mass and muscle strength due to the fact that they increase proteolysis during muscle tissue synthesis.74

Frailty in RA

Despite improvements in therapeutic management of patients with RA, their physical disability and quality of life is markedly reduced, this is influenced by frailty.75 Frailty is a dynamic condition of greater vulnerability that restricts proper social, physical and psychological functioning.76 It is considered as a syndrome with multiple causes and factors characterized by sarcopenia, weakness, slowness, low activity and fatigue, which increases the vulnerability of the person to develop greater dependency and/or death.59

The prevalence of frailty in RA patients has a considerable impact,59 according to Salaffi et al, young patients with RA presented frailty in 2.5% and 36.4% in older adults with RA (p <0.001) (98). Likewise, the prevalence of pre-frailty in young patients with RA was 11.5% and in the elderly 57.9% (p <0.001).59

Among adults with RA, being frail compared to being robust showed a significant difference in a worsening of physical function through the scores of the Valued Life Activities (VLA) disability scale (p <0.01).75 In 2019, the same authors identified that initial frailty in patients with RA can predict an increase or worsening of HAQ (95% CI, p <0.01), where fatigue is an important contributor to the final effect.77

According to Briot et al frailty accompanied by systemic osteoporosis and increased fracture rates has been described in chronic inflammatory diseases with joint involvement such as RA.78 In fact, RA is included in the Fracture Risk Assessment tool (FRAX) fracture prediction algorithm. Due to systemic inflammation, an activation and release of pro-inflammatory cytokines is generated that affect different pathogens and tissues.78 According to Guler-Yuksel et al, this inflammatory process affects several organs, including bone tissue, presenting as local bone erosions and localized and general periarticular bone loss, which is one of the main early extra-articular complications of RA.79

Inflammatory changes in bone tissue double the risk of vertebral, hip, and other fractures, compared to healthy controls of the same age.78 The bone fragility found in patients with RA is linked to general factors such as age, female sex, low BMI; and specific factors for RA such as the positivity of RF or anti-CCP, activity and duration of the disease, immobility, risk of falls, systemic inflammation, sarcopenia and the use of glucocorticoids (Figure 3).78 In addition, it is estimated that mortality may be premature in patients with RA after a hip fracture since the activity of the disease increases and there is more functional restriction.78

Figure 3 Factors influencing bone fragility in patients with RA.

Li et al studied 2923 patients with RA and identified that frailty was mainly associated with a history of osteoporotic fracture and hospitalization. Approximately 4.3% of the studied sample had osteoporotic fractures and the fragility index was higher compared to patients without fracture.76

A higher state of fragility reflects a higher risk of osteoporotic fractures in patients with RA,59,80 therefore, it is important to frequently assess frailty using the appropriate tools to detect it in RA and that it can be comprehensively examined for proper clinical and therapeutic management.

Discussion

The goal of rheumatoid arthritis treatment is focused on reducing the disease activity, and if possible, to reach a complete remission. However, there are comorbidities that are not routinely evaluated in the consultation with the rheumatologist. For this reason, in addition to clinimetry tools for rheumatoid arthritis, it is recommended to include questionnaires that evaluate the different aspects of the disease, such as the Patient Health Questionnaire (PHQ-9) for depression, HADS for anxiety, as well as the identification of sleep and psychiatric disorders. It is also important to evaluate the extra-articular manifestations of the disease such as sarcopenia, fatigue, fibromyalgia, weight changes (Figure 4).

Figure 4 Proposed algorithm for an integral evaluation of a patient with RA.

Conclusion

This review demonstrates different aspects that influence the quality of life and evolution of patients with RA. Depression, anxiety, fatigue, sleep disturbances, suicidal behavior, fibromyalgia, sarcopenia, frailty, cachexia, and obesity are disorders that should be evaluated in patients with RA since their early identification improves the development and impact of these patients. It is evident that the physical domain of quality of life is the most affected in these patients with extra-articular manifestations and this has a significantly negative influence on the psychological domain. It is important to emphasize the importance of a multidisciplinary and comprehensive management in patients with RA and to encourage the creation of studies that analyze the impact of these conditions on the evolution of rheumatoid arthritis.

Copyright/Ethics

Figures embedded in the article are original, developed by Genessis Maldonado.

Author Contributions

All authors made substantial contributions to conception and design, acquisition of data, or analysis and interpretation of data; took part in drafting the article or revising it critically for important intellectual content; gave final approval of the version to be published; and agree to be accountable for all aspects of the work.

Disclosure

Dr Gustavo Citera report grants, personal fees from Pfizer, during the conduct of the study; grants, personal fees from Pfizer, outside the submitted work. The authors report no other conflicts of interests in this work.

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