![]() |
|
|
|
What is Post Traumatic Stress Disorder? Some details of the incident can be persistently re-experienced over time in the form of recurrent and intrusive distressing recollections, including images, thoughts and perceptions. Many show clear psychological distress at the exposure to internal and external cues which resembled those of accident or event. In day to day life sufferers often develop strategies of persistent avoidance of any stimuli associated with the incident, and a numbing of general responsiveness which was not present beforehand. They can appear to take great effort to avoid thoughts, feelings and a conversation associated with the incident, and also strenuously avoids activities, places and situations that arouse recollections of it. A markedly diminished interest of participation in significant activities can be observed. Sometimes people affected experience feelings of detachment or estrangement from others. This gives a restricted range of effect in relationships. Many also have difficulty sleeping. These symptoms can be severe enough and last long enough to significantly impair the person's daily life. PTSD is marked by clear biological changes as well as psychological symptoms. PTSD is complicated by the fact that it frequently occurs in conjunction with related disorders such as depression, substance abuse, problems of memory and cognition, and other problems of physical and mental health. The disorder is also associated with impairment of the person's ability to function in social or family life, including occupational instability, marital problems and divorces, family discord, and difficulties in parenting. Understanding PTSD Careful research and documentation of PTSD began in earnest in America after the Vietnam War. The National Vietnam Veterans Readjustment Study estimated in 1988 that the prevalence of PTSD in that group was 15.2% at that time and that 30% had experienced the disorder at some point since returning from Vietnam. PTSD has subsequently been observed in all veteran populations, from many different countries that have been studied, including World War II, Korean conflict, and Persian Gulf populations, and in United Nations peacekeeping forces deployed to other war zones around the world. PTSD is not only a problem for veterans, however. Although there are unique cultural- and gender-based aspects of the disorder, it occurs in men and women, adults and children, Western and non-Western cultural groups, and all socioeconomic strata. A study of civilians conducted in 1995 estimated that the lifetime prevalence of PTSD was 5% in men and 10% in women. How does PTSD develop? The course of chronic PTSD usually involves periods of symptom increase followed by remission or decrease, although some individuals may experience symptoms that are unremitting and severe. Some older veterans, who report a lifetime of only mild symptoms, experience significant increases in symptoms following retirement, severe medical illness in themselves or their spouses, or reminders of their military service (such as reunions or media broadcasts of the anniversaries of war events). How is PTSD assessed? How common is PTSD? About 30 percent of the men and women who have spent time in war zones experience PTSD. An additional 20 to 25 percent have had partial PTSD at some point in their lives. (More than half of all American male Vietnam veterans and almost half of all female Vietnam veterans have experienced "clinically serious stress reaction symptoms.") PTSD has also been detected among English veterans of the Gulf War, with some estimates running as high as 8 percent. Who is most likely to develop PTSD?
What are the consequences associated with PTSD? Psychophysiological alterations associated with PTSD include hyper-arousal of the sympathetic nervous system, increased sensitivity of the startle reflex, and sleep abnormalities. People with PTSD tend to have abnormal levels of key hormones involved in the body's response to stress. Thyroid function also seems to be enhanced in people with PTSD. Some studies have shown that cortisol levels in those with PTSD are lower than normal and epinephrine and norepinephrine levels are higher than normal. People with PTSD also continue to produce higher than normal levels of natural opiates after the trauma has passed. An important finding is that the neurohormonal changes seen in PTSD are distinct from, and actually opposite to, those seen in major depression. The distinctive profile associated with PTSD is also seen in individuals who have both PTSD and depression. PTSD is associated with the increased likelihood of co-occurring psychiatric disorders. In a large-scale study, 88 percent of men and 79 percent of women with PTSD met criteria for another psychiatric disorder. The co-occurring disorders most prevalent for men with PTSD were alcohol abuse or dependence (51.9 percent), major depressive episodes (47.9 percent), conduct disorders (43.3 percent), and drug abuse and dependence (34.5 percent). The disorders most frequently comorbid with PTSD among women were major depressive disorders (48.5 percent), simple phobias (29 percent), social phobias (28.4 percent), and alcohol abuse/dependence (27.9 percent). PTSD also significantly impacts psychosocial functioning, independent of comorbid conditions. For instance, veterans with PTSD were found to have profound and pervasive problems in their daily lives. These included problems in family and other interpersonal relationships, problems with employment, and involvement with the criminal justice system. Headaches, gastrointestinal complaints, immune system problems, dizziness, chest pain, and discomfort in other parts of the body are common in people with PTSD. Often, medical doctors treat the symptoms without being aware that they stem from PTSD. How is PTSD treated? At present, the psychotherapeutic cognitive-behavioral based therapies appears to be somewhat more effective than drug therapy. However, it would be premature to conclude that drug therapy is less effective overall since drug trials for PTSD are at a very early stage. A combination of psychotherapeutic and chemical interventions may be appropriate in some cases.
TOP
|
|||||||