Prolonged grief disorder (PGD) refers to a syndrome consisting of a distinct set of symptoms following the death of a loved one that are so prolonged and intense that they exceed the expectably wide range of individual and cultural variability. PGD is relatively rare – experienced by about 10 percent of bereaved survivors, though rates vary depending on the circumstances. This is grief that does not resolve naturally and persists into the indefinite future as a defining feature that severely adversely affects the life of the survivor. The affected person is incapacitated by grief, so focused on the loss that it is difficult to care about much else. S/he ruminates about the death and longs for a reunion with the departed, feeling unsure of his/her identity and place in the world. His/her life is flat and dull, offering little meaning or purpose, and the future holds no prospect of joy, satisfaction or pleasure. The bereaved person who suffers from PGD feels devalued and in constant turmoil, with an inability to adjust to (if not a frank protest against) life without the beloved.
PGD is defined by its symptoms, duration and intensity. The symptoms are yearning intensely for the person, identity confusion, difficulty accepting the loss, bitterness, emotional numbness, inability to trust others and feeling stuck in grief. These are present every day, cause significant distress and functional impairment and remain intense, frequent and disabling for six months or more after the death.
Grief is a normal response to bereavement. Researchers have found that 10-12% of people experience a prolonged response to bereavement that impacts functioning and has adverse long-term effects on health.
Prolonged grief is considered when an individual’s ability to function and level of distress over the loss is extreme and persistent. People with PGD feel "stuck" in their grief, a chronic aching and yearning for a cherished person who is now gone, feel that they are not the same person anymore (e.g., unsure of their identity, loss of a sense of self and self-worth), feel emotionally disconnected from others, and lack the desire to "move on" (and sometimes feeling that doing so would be a betrayal of the person who is now gone).
What is the difference between normal grief and "Prolonged Grief Disorder" (PGD)?
Although extremely painful, grief is the normal process of accommodating to a new life without the deceased loved one. Most bereaved survivors manage to get through the worst of their grief and continue to function and find meaning in life. Normal grief differs from PGD in that it is not as intense, persistent, disabling and life-altering and is not experienced as a severe threat to the survivor's identity, sense of self-worth, feeling of security, safety or hopes for future happiness. Although normal grief remains with the bereaved person far into the future, its ability to disrupt the survivor's life dissipates with time.
Factor analytic studies have determined that the symptoms of PGD form a unitary construct that is separate from symptoms of bereavement-related depression and anxiety. Extensive research has been conducted to identify and isolate the symptoms that constitute PGD and distinguish it from diagnostic "nearest neighbors" such as Major Depressive Disorder or Posttraumatic Stress Disorder. These analyses integrate clinical insights with rigorous empirical analysis to determine the set of symptoms that best indicate which bereaved survivors will be at risk of long term dysfunction and distress (e.g., suicidality, alcohol abuse, disability days, sleep impairment, quality of life impairment, high blood pressure, hospitalizations for serious medical events such as heart attacks).
Prigerson et al. proposed diagnostic criteria for PGD for inclusion in the DSM-5 and ICD-11.
Known risk factors and clinical correlates for PGD include a history of:
The unique symptom profile and course of PGD requires targeted treatment. Randomized control trials (RCT) have proven tricyclic antidepressants alone or together with interpersonal psychotherapy ineffective in reducing PGD symptoms, while psychotherapy designed specifically for PGD has been proven to be beneficial. Preliminary results of an online, self-management intervention to prevent PGD in recently bereaved individuals, in a study called "HEAL" (Healthy Experiences After Loss), are very promising. A larger randomized controlled trial is being planned.
Out of the people surveyed who have experienced a loss, 10%–20% display a prolonged and severe grief response. Global incidence needs further investigation.
History and Discussion
The DSM-IV and ICD-10 do not distinguish between normal and prolonged grief. Based on numerous findings of maladaptive effects of prolonged grief, diagnostic criteria for PGD have been proposed for inclusion in the DSM-5 and ICD-11.
The proposed diagnostic criteria were the result of statistical analysis of a set of criteria agreed upon by a panel of experts. The analyses produced criteria that were the most accurate markers of bereaved individuals suffering from painful, persistent, destructive PGD. The criteria for PGD have been validated and dozens of studies both internationally and domestically are being conducted, and published, that validate the PGD criteria in other cultures, kinship relationships to the deceased and causes of death (e.g., earthquakes, tsunami, war, genocide, fires, bombings, palliative and acute care settings).
Recognizing prolonged grief as a disorder would allow it to be better understood, detected, studied and treated. Insurance companies would also be more likely reimburse its care. On the other hand, inclusion of PGD in the DSM-5 and ICD-11 may be misunderstood as the medicalization of grief, reducing its dignity, turning love into pathology and implying that survivors should quickly forget and "get over" the loss. Bereaved persons may be insulted by having their distress labeled as a mental disorder. While this stigmatization would not be the intent, it might be an unintended consequence. In spite of this concern, studies have show that of nearly all bereaved individuals who met the criteria for PGD were receptive to treatment and their families relieved to know they had a recognizable syndrome.
^ abPrigerson, Holly G.; Vanderwerker, Lauren C.; Maciejewski, Paul K. (2008). "A case for inclusion of prolonged grief disorder in DSM-5". In Stroebe, Margaret S.; Hansson, Robert O.; Schut, Henk et al. Handbook of Bereavement Research and Practice: Advances in Theory and intervention. Washington, DC: American Psychological Association. pp. 165–86. ISBN978-1-4338-0351-2.|displayeditors= suggested (help)
^ abcdePrigerson, HG; Frank, E; Kasl, SV; Reynolds, CF; Anderson, B; Zubenko, GS; Houck, PR; George, CJ; Kupfer, DJ (1995). "Complicated grief and bereavement-related depression as distinct disorders: Preliminary empirical validation in elderly bereaved spouses". The American Journal of Psychiatry152 (1): 22–30. PMID7802116.
^ abcPrigerson, Holly G.; MacIejewski, Paul K.; Reynolds, Charles F.; Bierhals, Andrew J.; Newsom, Jason T.; Fasiczka, Amy; Frank, Ellen; Doman, Jack; Miller, Mark (1995). "Inventory of complicated grief: A scale to measure maladaptive symptoms of loss". Psychiatry Research59 (1–2): 65–79. doi:10.1016/0165-1781(95)02757-2. PMID8771222.
^ abcPrigerson, HG; Bierhals, AJ; Kasl, SV; Reynolds, CF; Shear, MK; Newsom, JT; Jacobs, S (1996). "Complicated grief as a disorder distinct from bereavement-related depression and anxiety: A replication study". The American Journal of Psychiatry153 (11): 1484–6. PMID8890686.
^ abcdefghPrigerson, HG; Bierhals, AJ; Kasl, SV; Reynolds, CF; Shear, MK; Day, N; Beery, LC; Newsom, JT; Jacobs, S (1997). "Traumatic grief as a risk factor for mental and physical morbidity". The American Journal of Psychiatry154 (5): 616–23. PMID9137115.
^ abcdefPrigerson, HG; Bridge, J; MacIejewski, PK; Beery, LC; Rosenheck, RA; Jacobs, SC; Bierhals, AJ; Kupfer, DJ; Brent, DA (1999). "Influence of traumatic grief on suicidal ideation among young adults". The American Journal of Psychiatry156 (12): 1994–5. PMID10588419.
^ abcdPrigerson, H. G.; Shear, M. K.; Jacobs, S. C.; Reynolds, C. F.; MacIejewski, P. K.; Davidson, J. R.; Rosenheck, R.; Pilkonis, P. A.; Wortman, C. B.; Williams, J. B.; Widiger, T. A.; Frank, E.; Kupfer, D. J.; Zisook, S. (1999). "Consensus criteria for traumatic grief. A preliminary empirical test". The British Journal of Psychiatry174: 67–73. doi:10.1192/bjp.174.1.67. PMID10211154.
^ abBoelen, P. A.; Van Den Bout, J (2005). "Complicated Grief, Depression, and Anxiety as Distinct Postloss Syndromes: A Confirmatory Factor Analysis Study". American Journal of Psychiatry162 (11): 2175–7. doi:10.1176/appi.ajp.162.11.2175. PMID16263861.
^ abBoelen, P. A.; Van Den Bout, J; De Keijser, J (2003). "Traumatic Grief as a Disorder Distinct from Bereavement-Related Depression and Anxiety: A Replication Study with Bereaved Mental Health Care Patients". American Journal of Psychiatry160 (7): 1339–41. doi:10.1176/appi.ajp.160.7.1339. PMID12832252.
^ abJacobsen, Julietc; Vanderwerker, Laurenc; Block, Susand; Friedlander, Robertj; MacIejewski, Paulk; Prigerson, Hollyg (2006). "Depression and demoralization as distinct syndromes: Preliminary data from a cohort of advanced cancer patients". Indian Journal of Palliative Care12: 8–15. doi:10.4103/0973-1075.25913.
^ abSilverman, G. K.; Jacobs, S. C.; Kasl, S. V.; Shear, M. K.; MacIejewski, P. K.; Noaghiul, F. S.; Prigerson, H. G. (2000). "Quality of life impairments associated with diagnostic criteria for traumatic grief". Psychological Medicine30 (4): 857–62. doi:10.1017/S0033291799002524. PMID11037094.
^ abcMelhem, Nadine M.; Moritz, Grace; Walker, Monica; Shear, M. Katherine; Brent, David (2007). "Phenomenology and Correlates of Complicated Grief in Children and Adolescents". Journal of the American Academy of Child & Adolescent Psychiatry46 (4): 493. doi:10.1097/chi.0b013e31803062a9.
^ abVanderwerker, Lauren C.; Jacobs, Selby C.; Parkes, Colin Murray; Prigerson, Holly G. (2006). "An Exploration of Associations Between Separation Anxiety in Childhood and Complicated Grief in Later Life". The Journal of Nervous and Mental Disease194 (2): 121–3. doi:10.1097/01.nmd.0000198146.28182.d5. PMID16477190.
^Johnson, Jeffrey G.; Zhang, Baohui; Greer, Joseph A.; Prigerson, Holly G. (2007). "Parental Control, Partner Dependency, and Complicated Grief Among Widowed Adults in the Community". The Journal of Nervous and Mental Disease195 (1): 26–30. doi:10.1097/01.nmd.0000252009.45915.b2. PMID17220736.
^Silverman, GK; Johnson, JG; Prigerson, HG (2001). "Preliminary explorations of the effects of prior trauma and loss on risk for psychiatric disorders in recently widowed people". The Israel journal of psychiatry and related sciences38 (3–4): 202–15. PMID11725418.
^Mitchell, Ann M.; Kim, Yookyung; Prigerson, Holly G.; Mortimer-Stephens, Marykay (2004). "Complicated Grief in Survivors of Suicide". Crisis: the Journal of Crisis Intervention and Suicide Prevention25: 12. doi:10.1027/0227-5910.25.1.12.
^Cleiren, M; Diekstra, RF; Kerkhof, AJ; Van Der Wal, J (1994). "Mode of death and kinship in bereavement: Focusing on "who" rather than "how"". Crisis15 (1): 22–36. PMID8062585.
^ abVan Doorn, Carol; Kasl, Stanislav V.; Beery, Laurel C.; Jacobs, Selby C.; Prigerson, Holly G. (1998). "The Influence of Marital Quality and Attachment Styles on Traumatic Grief and Depressive Symptoms". The Journal of Nervous & Mental Disease186 (9): 566. doi:10.1097/00005053-199809000-00008.
^Johnson, Jeffrey G.; Vanderwerker, Lauren C.; Bornstein, Robert F.; Zhang, Baohui; Prigerson, Holly G. (2006). "Development and Validation of an Instrument for the Assessment of Dependency Among Bereaved Persons". Journal of Psychopathology and Behavioral Assessment28 (4): 261–70. doi:10.1007/s10862-005-9016-3.
^Barry, L. C.; Kasl, SV; Prigerson, HG (2002). "Psychiatric Disorders Among Bereaved Persons: The Role of Perceived Circumstances of Death and Preparedness for Death". American Journal of Geriatric Psychiatry10 (4): 447–57. doi:10.1176/appi.ajgp.10.4.447. PMID12095904.
^Hebert, Randy S.; Dang, Qianyu; Schulz, Richard (2006). "Preparedness for the Death of a Loved One and Mental Health in Bereaved Caregivers of Patients with Dementia: Findings from the REACH Study". Journal of Palliative Medicine9 (3): 683–93. doi:10.1089/jpm.2006.9.683. PMID16752974.
^ abMcDermott, Owen D.; Prigerson, Holly G.; Reynolds, Charles F.; Houck, Patricia R.; Dew, Mary Amanda; Hall, Martica; Mazumdar, Sati; Buysse, Daniel J. et al. (1997). "Sleep in the wake of complicated grief symptoms: An exploratory study". Biological Psychiatry41 (6): 710–6. doi:10.1016/S0006-3223(96)00118-7. PMID9066995.
^Reynolds, CF; Miller, MD; Pasternak, RE; Frank, E; Perel, JM; Cornes, C; Houck, PR; Mazumdar, S et al. (1999). "Treatment of bereavement-related major depressive episodes in later life: A controlled study of acute and continuation treatment with nortriptyline and interpersonal psychotherapy". The American Journal of Psychiatry156 (2): 202–8. PMID9989555.
^Jacobs, SC; Nelson, JC; Zisook, S (1987). "Treating depressions of bereavement with antidepressants. A pilot study". The Psychiatric clinics of North America10 (3): 501–10. PMID3684751.
^Pasternak, RE; Reynolds, CF; Schlernitzauer, M; Hoch, CC; Buysse, DJ; Houck, PR; Perel, JM (1991). "Acute open-trial nortriptyline therapy of bereavement-related depression in late life". The Journal of clinical psychiatry52 (7): 307–10. PMID2071562.
^Shear, K.; Frank, Ellen; Houck, Patricia R.; Reynolds, Charles F. (2005). "Treatment of Complicated Grief: A Randomized Controlled Trial". JAMA: the Journal of the American Medical Association293 (21): 2601. doi:10.1001/jama.293.21.2601.
^Boelen, Paul A.; De Keijser, Jos; Van Den Hout, Marcel A.; Van Den Bout, Jan (2007). "Treatment of complicated grief: A comparison between cognitive-behavioral therapy and supportive counseling". Journal of Consulting and Clinical Psychology75 (2): 277–84. doi:10.1037/0022-006X.75.2.277. PMID17469885.