For a number of years, investigators have reported stress or trauma-related symptoms, such as avoidant behaviors, intrusive thoughts, and heightened arousal in survivors of cancer.[1-4] These symptoms resemble those seen in persons who have experienced traumatic events such as military combat, violent personal assault (e.g., rape), natural disasters, or other threats to life and are referred to collectively as posttraumatic stress disorder (PTSD).[5-10] Thus the occurrence of PTSD and trauma-related symptoms in patients with cancer has been under increasing study, influenced by changes in the diagnostic criteria for PTSD in the Diagnostic and Statistical Manual of Mental Disorders, 4th edition (DSM-IV).[5] The third edition of the DSM [11] specifically excluded patients with medical illnesses such as cancer from PTSD. The diagnostic criteria for PTSD in the DSM-IV-TR, however, specifically include "being diagnosed with a life-threatening illness" as one example of a traumatic event.[12] Thus, people with histories of cancer can now be evaluated and considered at risk for PTSD.

Reviews note that posttraumatic stress has been studied in a variety of cancers including melanoma, Hodgkin's lymphoma, breast cancer, and mixed cancers. The incidence of the full syndrome of PTSD (meeting full DSM-IV diagnostic criteria) ranges from 3% to 4% in early-stage patients recently diagnosed to 35% in patients evaluated after treatment. When incidence of PTSD-like symptoms (not meeting the full diagnostic criteria) are measured, the rates are higher, ranging from 20% in patients with early-stage cancer to 80% in those with recurrent cancer.

Factors suggesting patients who might be at increased risk for the development of PTSD have not been extensively studied; however, one study of women with early-stage breast cancer [13] found that younger age, lower income, and fewer years of formal education were associated with PTSD-like symptoms. Another study of men and women treated with bone marrow transplant [14] found that lower levels of social support and the use of avoidance coping correlated significantly to a higher number of PTSD-like symptoms.

While no specific therapies for PTSD in the cancer setting have been developed, treatment modalities used with other people with PTSD can be useful in alleviating distress in cancer patients and survivors.

References

1. Kornblith AB, Anderson J, Cella DF, et al.: Quality of life assessment of Hodgkin's disease survivors: a model for cooperative clinical trials. Oncology (Huntingt) 4 (5): 93-101; discussion 104, 1990.  [PUBMED Abstract]
   
   
2. Alter CL, Pelcovitz D, Axelrod A, et al.: Identification of PTSD in cancer survivors. Psychosomatics 37 (2): 137-43, 1996 Mar-Apr.  [PUBMED Abstract]
   
   
3. Kornblith AB, Anderson J, Cella DF, et al.: Hodgkin disease survivors at increased risk for problems in psychosocial adaptation. The Cancer and Leukemia Group B. Cancer 70 (8): 2214-24, 1992.  [PUBMED Abstract]
   
   
4. Koocher G, O'Malley J: The Damocles Syndrome: Psychosocial Consequences of Surviving Childhood Cancer. New York: McGraw-Hill, 1981. 
   
   
5. American Psychiatric Association.: Diagnostic and Statistical Manual of Mental Disorders: DSM-IV. 4th ed. Washington, DC: American Psychiatric Association, 1994. 
   
   
6. Solomon Z, Garb R, Bleich A, et al.: Reactivation of combat-related posttraumatic stress disorder. Am J Psychiatry 144 (1): 51-5, 1987.  [PUBMED Abstract]
   
   
7. Baider L, Sarell M: Coping with cancer among holocaust survivors in Israel: an exploratory study. J Human Stress 10 (3): 121-7, 1984 Fall.  [PUBMED Abstract]
   
   
8. Perry S, Difede J, Musngi G, et al.: Predictors of posttraumatic stress disorder after burn injury. Am J Psychiatry 149 (7): 931-5, 1992.  [PUBMED Abstract]
   
   
9. Green BL, Lindy JD, Grace MC, et al.: Chronic posttraumatic stress disorder and diagnostic comorbidity in a disaster sample. J Nerv Ment Dis 180 (12): 760-6, 1992.  [PUBMED Abstract]
   
   
10. Rundell JR, Ursano RJ, Holloway HC, et al.: Psychiatric responses to trauma. Hosp Community Psychiatry 40 (1): 68-74, 1989.  [PUBMED Abstract]
    
    
11. American Psychiatric Association.: Diagnostic and Statistical Manual of Mental Disorders: DSM-III-R. 3rd rev. ed. Washington, DC: American Psychiatric Association, 1987. 
    
    
12. American Psychiatric Association.: Diagnostic and Statistical Manual of Mental Disorders: DSM-IV-TR. 4th rev. ed. Washington, DC: American Psychiatric Association, 2000. 
    
    
13. Cordova MJ, Andrykowski MA, Kenady DE, et al.: Frequency and correlates of posttraumatic-stress-disorder-like symptoms after treatment for breast cancer. J Consult Clin Psychol 63 (6): 981-6, 1995.  [PUBMED Abstract]
    
    
14. Jacobsen PB, Sadler IJ, Booth-Jones M, et al.: Predictors of posttraumatic stress disorder symptomatology following bone marrow transplantation for cancer. J Consult Clin Psychol 70 (1): 235-40, 2002.  [PUBMED Abstract]
    
    

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