Somatization disorder

Somatization disorder was a mental and behavioral disorder[2] characterized by recurring, multiple, and current, clinically significant complaints about somatic symptoms. It was recognized in the DSM-IV-TR classification system, but in the latest version DSM-5, it was combined with undifferentiated somatoform disorder to become somatic symptom disorder, a diagnosis which no longer requires a specific number of somatic symptoms.[3] ICD-10, the latest version of the International Statistical Classification of Diseases and Related Health Problems, still includes somatization syndrome.[4]

Somatization disorder
Other namesBriquet's syndrome
SpecialtyPsychiatry, clinical psychology
SymptomsVariable physical symptoms that can include headaches, generalized pain, changes in bowel movements, fatigue, weakness, pain with sex,[1] distress about these symptoms
Risk factorsDepression, anxiety, substance abuse, parental neglect, abuse
Differential diagnosisConversion disorder, real physical illness
TreatmentCognitive behavioral therapy, electroconvulsive therapy

Criteria

DSM-5

In the DSM-5 the disorder has been renamed somatic symptom disorder (SSD), and includes SSD with predominantly somatic complaints (previously referred to as somatization disorder), and SSD with pain features (previously known as pain disorder).[5]

DSM-IV-TR

The DSM-IV-TR diagnostic criteria are:[6]

  • A history of somatic complaints over several years, starting prior to the age of 30.
  • Such symptoms cannot be fully explained by a general medical condition or substance use or, when there is an associated medical condition, the impairments due to the somatic symptoms are more severe than generally expected.
  • Complaints are not feigned as in malingering or factitious disorder.

The symptoms do not all have to occur at the same time, but may occur over the course of the disorder. A somatization disorder itself is chronic but fluctuating that rarely remits completely. A thorough physical examination of the specified areas of complaint is critical for somatization disorder diagnosis. Medical examination would provide objective evidence of subjective complaints of the individual.[6]

Diagnosis of somatization disorder is difficult because it is hard to determine to what degree psychological factors are exacerbating subjective feelings of pain. For instance, chronic pain is common in 30% of the U.S. population,[7] making it difficult to determine whether or not the pain is due to predominantly psychological factors.

ICD-10

In ICD-10, the latest version of the International Statistical Classification of Diseases and Related Health Problems, somatization syndrome is described as:[4]

"The main features are multiple, recurrent and frequently changing physical symptoms of at least two years duration. Most patients have a long and complicated history of contact with both primary and specialist medical care services, during which many negative investigations or fruitless exploratory operations may have been carried out. Symptoms may be referred to any part or system of the body. The course of the disorder is chronic and fluctuating, and is often associated with disruption of social, interpersonal, and family behaviour."

ICD-10 also includes the following subgroups of somatization syndrome:[4]

Cause

Although somatization disorder has been studied and diagnosed for more than a century, there is debate and uncertainty regarding its pathophysiology. Most current explanations focus on the concept of a misconnection between the mind and the body. Genetics probably contributes a very small amount to development of the disorder.[8]

One of the oldest explanations for somatization disorder advances the theory that it is a result of the body's attempt to cope with emotional and psychological stress. The theory states that the body has a finite capacity to cope with psychological, emotional, and social distress, and that beyond a certain point symptoms are experienced as physical, principally affecting the digestive, nervous, and reproductive systems. There are many different feedback systems where the mind affects the body; for instance, headaches are known to be associated with psychological factors,[9] and stress and the hormone cortisol are known to have a negative impact on immune functions. This might explain why somatization disorders are more likely in people with irritable bowel syndrome, and why patients with SSD are more likely to have a mood or anxiety disorder.[6] There is also a much increased incidence of SSD in people with a history of physical, emotional or sexual abuse.[10]

Another hypothesis for the cause of somatization disorder is that people with the disorder have heightened sensitivity to internal physical sensations and pain.[11] A biological sensitivity to somatic feelings could predispose a person to developing SSD. It is also possible that a person's body might develop increased sensitivity of nerves associated with pain and those responsible for pain perception, as a result of chronic exposure to stressors.[12]

Cognitive theories explain somatization disorder as arising from negative, distorted, and catastrophic thoughts and reinforcement of these cognitions. Catastrophic thinking could lead a person to believe that slight ailments, such as mild muscle pain or shortness of breath, are evidence of a serious illness such as cancer or a tumor. These thoughts can then be reinforced by supportive social connections. A spouse who responds more to his or her partner's pain cues makes it more likely that he or she will express greater pain.[13] Children of parents who are preoccupied or overly attentive to the somatic complaints of their children are more likely to develop somatic symptoms.[14] Severe cognitive distortions can make a person with SSD limit the behaviors he or she engages in, and cause increased disability and impaired functioning.[15]

Neuroimaging evidence

Some literature reviews of cognitive–affective neuroscience on somatization disorder suggested that catastrophization in patients with somatization disorders tends to present a greater vulnerability to pain. The relevant brain regions include the dorsolateral prefrontal, insular, rostral anterior cingulate, premotor, and parietal cortices.[16][17]

Treatments

To date, cognitive behavioral therapy (CBT) is the best established treatment for a variety of somatoform disorders including somatization disorder.[18][19][20] CBT aims to help patients realize their ailments are not catastrophic and to enable them to gradually return to activities they previously engaged in, without fear of "worsening their symptoms". Consultation and collaboration with the primary care physician also demonstrated some effectiveness.[20][21] The use of antidepressants is preliminary but does not yet show conclusive evidence.[20][22] Electroconvulsive shock therapy (ECT) has been used in treating somatization disorder among the elderly; however, the results were still debatable with some concerns around the side effects of using ECT.[23] Overall, psychologists recommend addressing a common difficulty in patients with somatization disorder in the reading of their own emotions. This may be a central feature of treatment; as well as developing a close collaboration between the GP, the patient and the mental health practitioner.[24]

Epidemiology

Somatization disorder is estimated to occur in 0.2% to 2% of females,[25][26] and 0.2% of males.

There are cultural differences in the prevalence of somatization disorder. For example, somatization disorder and symptoms were found to be significantly more common in Puerto Rico.[27] In addition the diagnosis is also more prevalent among African Americans and those with less than a high school education or lower socioeconomic status.[28]

There is usually co-morbidity with other psychological disorders, particularly mood disorders or anxiety disorders.[6][29] Research also showed comorbidity between somatization disorder and personality disorders, especially antisocial, borderline, narcissistic, histrionic, avoidant, and dependent personality disorder.[30]

About 10-20 percent of female first degree relatives also have somatization disorder and male relatives have increased rates of alcoholism and sociopathy.[31]

See also

References
  1. "Somatic Symptom Disorder: What It Is, Symptoms & Treatment". Cleveland Clinic.
  2. Drs; Sartorius, Norman; Henderson, A.S.; Strotzka, H.; Lipowski, Z.; Yu-cun, Shen; You-xin, Xu; Strömgren, E.; Glatzel, J.; Kühne, G.-E.; Misès, R.; Soldatos, C.R.; Pull, C.B.; Giel, R.; Jegede, R.; Malt, U.; Nadzharov, R.A.; Smulevitch, A.B.; Hagberg, B.; Perris, C.; Scharfetter, C.; Clare, A.; Cooper, J.E.; Corbett, J.A.; Griffith Edwards, J.; Gelder, M.; Goldberg, D.; Gossop, M.; Graham, P.; Kendell, R.E.; Marks, I.; Russell, G.; Rutter, M.; Shepherd, M.; West, D.J.; Wing, J.; Wing, L.; Neki, J.S.; Benson, F.; Cantwell, D.; Guze, S.; Helzer, J.; Holzman, P.; Kleinman, A.; Kupfer, D.J.; Mezzich, J.; Spitzer, R.; Lokar, J. "The ICD-10 Classification of Mental and Behavioural Disorders Clinical descriptions and diagnostic guidelines" (PDF). www.who.int World Health Organization. Microsoft Word. bluebook.doc. p. 116. Retrieved 23 June 2021 – via Microsoft Bing.
  3. "Highlights of Changes from DSM-IV-TR to DSM-5" (PDF). American Psychiatric Association. May 17, 2013. Retrieved September 6, 2013.
  4. "ICD-10 Version:2015". Retrieved 2015-05-23.
  5. Association, American Psychiatric (2013). Diagnostic and Statistical Manual of Mental DisordersAmerican Psychiatric Associati (5th ed.). Arlington: AMERICAN PSYCHIATRIC PUBLISHING. ISBN 978-0890425558.
  6. American Psychiatric Association (2000). Diagnostic and Statistical Manual of Mental Disorders, Fourth Edition, Text Revision: DSM-IV-TR. Washington, DC: American Psychiatric Association. pp. 486–490. ISBN 978-0-89042-025-6.
  7. Hoffman BM, Papas RK, Chatkoff DK, Kerns RD (January 2007). "Meta-analysis of psychological interventions for chronic low back pain". Health Psychol. 26 (1): 1–9. doi:10.1037/0278-6133.26.1.1. PMID 17209691.
  8. Kato K, Sullivan PF, Evengård B, Pedersen NL (March 2009). "A population-based twin study of functional somatic syndromes". Psychol Med. 39 (3): 497–505. doi:10.1017/S0033291708003784. PMC 3947533. PMID 18578896.
  9. Martin PR, MacLeod C (August 2009). "Behavioral management of headache triggers: Avoidance of triggers is an inadequate strategy". Clin Psychol Rev. 29 (6): 483–95. doi:10.1016/j.cpr.2009.05.002. PMID 19556046.
  10. Pribor E. F.; Yutzy S. H.; Dean J. T.; Wetzel R. D. (1993). "Briquet's Syndrome, dissociation and abuse". American Journal of Psychiatry. 150 (10): 1507–1511. CiteSeerX 10.1.1.474.4552. doi:10.1176/ajp.150.10.1507. PMID 8379555.
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  13. Williamson D, Robinson ME, Melamed B (January 1997). "Pain behavior, spouse responsiveness, and marital satisfaction in patients with rheumatoid arthritis". Behav Modif. 21 (1): 97–118. doi:10.1177/01454455970211006. PMID 8995045. S2CID 25760377.
  14. Watt MC, O'Connor RM, Stewart SH, Moon EC, Terry L (2008). "Specificity of childhood learning experiences in relation to anxiety sensitivity and illness/injury sensitivity: Implications for health anxiety and pain". Journal of Cognitive Psychotherapy. 22 (2): 128–143. CiteSeerX 10.1.1.579.8368. doi:10.1891/0889-8391.22.2.128. S2CID 144392281.
  15. "Somatization disorder". Encyclopedia of Mental Disorders. Retrieved October 10, 2008.
  16. Stein DJ, Muller J (May 2008). "Cognitive-affective neuroscience of somatization disorder and functional somatic syndromes: reconceptualizing the triad of depression-anxiety-somatic symptoms". CNS Spectr. 13 (5): 379–84. doi:10.1017/S1092852900016540. PMID 18496475. S2CID 9660237.
  17. García-Campayo J, Fayed N, Serrano-Blanco A, Roca M (March 2009). "Brain dysfunction behind functional symptoms: neuroimaging and somatoform, conversive, and dissociative disorders". Curr Opin Psychiatry. 22 (2): 224–31. doi:10.1097/YCO.0b013e3283252d43. PMID 19553880. S2CID 34380841.
  18. Allen LA, Woolfolk RL, Escobar JI, Gara MA, Hamer RM (July 2006). "Cognitive-behavioral therapy for somatization disorder: a randomized controlled trial". Arch. Intern. Med. 166 (14): 1512–8. doi:10.1001/archinte.166.14.1512. PMID 16864762.
  19. Mai F (October 2004). "Somatization disorder: a practical review". Can J Psychiatry. 49 (10): 652–62. doi:10.1177/070674370404901002. PMID 15560311.
  20. Kroenke K (December 2007). "Efficacy of treatment for somatoform disorders: a review of randomized controlled trials". Psychosom Med. 69 (9): 881–8. doi:10.1097/PSY.0b013e31815b00c4. PMID 18040099. S2CID 28344833.
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  22. Stahl SM (July 2003). "Antidepressants and somatic symptoms: therapeutic actions are expanding beyond affective spectrum disorders to functional somatic syndromes". J Clin Psychiatry. 64 (7): 745–6. doi:10.4088/JCP.v64n0701. PMID 12934972.
  23. Zorumski CF, Rubin EH, Burke WJ (June 1988). "Electroconvulsive therapy for the elderly: a review". Hosp Community Psychiatry. 39 (6): 643–7. doi:10.1176/ps.39.6.643. PMID 3042587.
  24. Kenny M, Egan J (February 2011). "Somatization disorder: What clinicians need to know" (PDF). The Irish Psychologist. 37 (4): 93–96. Retrieved 9 December 2011.
  25. deGruy F, Columbia L, Dickinson P (July 1987). "Somatization disorder in a family practice". J Fam Pract. 25 (1): 45–51. PMID 3598478.
  26. Lichstein PR (March 1986). "Caring for the patient with multiple somatic complaints". South. Med. J. 79 (3): 310–4. doi:10.1097/00007611-198603000-00013. PMID 3952541. S2CID 220552356.
  27. Canino G, Bird H, Rubio-Stipec M, Bravo M (2000). "The epidemiology of mental disorders in the adult population of Puerto Rico". Revista Interamericana de Psicologia. 34 (1X): 29–46.
  28. Noyes R, Stuart S, Watson DB, Langbehn DR (2006). "Distinguishing between hypochondriasis and somatization disorder: a review of the existing literature". Psychother Psychosom. 75 (5): 270–81. doi:10.1159/000093948. PMID 16899963. S2CID 38387817.
  29. Lieb, Roselind; Meinlschmidt, Gunther; Araya, Ricardo. (2007). "Epidemiology of the association between somatoform disorders and anxiety and depressive disorders: An update". Psychosomatic Medicine. 69 (9): 860–863. doi:10.1097/psy.0b013e31815b0103. PMID 18040095. S2CID 25319341.
  30. Bornstein, Robert F; Gold, Stephanie H (2008). "Comorbidity of personality disorders and somatization disorder: A meta-analytic review". Journal of Psychopathology and Behavioral Assessment. 30 (2): 154–161. doi:10.1007/s10862-007-9052-2. S2CID 143736408.
  31. Stern, Theodore (2008). Massachusetts General Hospital comprehensive clinical psychiatry (1st ed.). Philadelphia, PA: Mosby/Elsevier. p. 323. ISBN 9780323047432.
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