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Friday, February 8, 2008

ANXIETY DISORDERS

Anxiety disorder

Anxiety disorder is a blanket term covering several different forms of fear, phobia and nervous condition, that come on suddenly and prevent pursuing normal daily routines including:
· general anxiety disorder
· social phobia
· specific phobias
· agoraphobia
· claustrophobia
· panic disorder
· separation anxiety disorder
· post-traumatic stress disorder

Treatment
Anxiety disorders are often debilitating chronic conditions, which can be present from an early age or begin suddenly after a triggering event. They are strongly affected by life stress, and prone to flare up at times of high stress. Pharmaceutical companies have created a number of drugs to combat these disorders. Many of these disorders can also be treated with the aid of a good counselor and behavioural therapies such as cognitive therapy.
Agoraphobia
Agoraphobia is a form of anxiety disorder. The name is literally translated as "a fear of the marketplace", from the Greek agora, and thus of open or public spaces. Many people suffering from agoraphobia, however, are not afraid of the open spaces themselves, but of situations often associated with these spaces, such as social gatherings. Others are comfortable seeing visitors, but only in a defined space they feel in control of--such a person may live for years without leaving his home, while happily seeing visitors and working, as long as they can stay within their safety zone.
An agoraphobic experiences severe panic attacks during situations where they feel trapped, insecure, out of control, or too far from their personal comfort zone. During severe bouts of anxiety, the agoraphobic is confined not only to their home, but to one or two rooms and they may even become bedbound until their over-stimulated nervous system can quieten down, and their adrenaline levels return to a more normal level. Agoraphobics are often extremely sensitised to their own bodily sensations, sub-consciously over-reacting to perfectly normal events. To take one example, the exertion involved in climbing a flight of stairs may be the cause for a fullblown panic attack, because it increases the heartbeat and breathing rate, which the agoraphobic interprets as the start of a panic attack instead of a normal fluctuation.
Agoraphobia can be successfully treated in many cases through a very gradual process of graduated exposure therapy combined with cognitive therapy and sometimes anti-anxiety or antidepressant medications.
Claustrophobia
Claustrophobia is an anxiety disorder that involves the fear of enclosed or confined spaces. Claustrophobes may suffer from panic attacks in situations such as being in elevators, trains or aircraft. Conversely, people who are prone to having panic attacks will often develop claustrophobia. If a panic attack occurs while they are in a confined space then they will be unable to escape the situation. Claustrophobes may also fear being in crowds. Claustrophobia can be treated in similar ways to other anxiety disorders, with a range of treatments including cognitive behavior therapy and the use of antidepressant medication.
The opposite of claustrophobia is chasmophilia.

General anxiety disorder
General anxiety disorder or generalized anxiety disorder (GAD) is an anxiety disorder that is characterized by uncontrollable worry about everyday things. The frequency, intensity, and duration of the worry are disproportionate to the actual source of worry, and such worry often interferes with daily functioning. GAD sufferers often uncontrollably worry over things such as their job, their finances, and the health of themselves and their family. However, GAD sufferers can also constantly abnormally worry over more mundane things such as timeliness for appointments, keeping the house clean, and whether or not their workspace is properly organized. For a diagnosis of GAD to be made, worry must be present more days than not for at least six months.
Physical symptoms of GAD can include: cold, clamy hands; difficulty swallowing; gastrointestinal discomfort and diarrhea; jumpiness; muscle tension; nausea; and sweating. GAD sufferers also easily become tired and have trouble sleeping. They also tend to be irritable and complain about feeling "on edge". GAD can be difficult to diagnose, because it often lacks the more telltale signs of other anxiety disorders, such as with panic disorder. GAD can also occur alongside other anxiety disorders, as well as alongside depressive disorders and substance abuse.
Panic attacks
A panic attack is a period of intense fear or discomfort, typically with an abrupt onset and usually lasting no more than 30 minutes. Symptoms include trembling, shortness of breath and sensations of choking or smothering.
Introduction
Most people report a fear of dying, "going crazy", or losing control of emotions or behavior. The experiences generally provoke a strong urge to escape or flee the place where the attack begins and, when associated with chest pain or shortness of breath, frequently results in seeking aid from a hospital emergency room or other type of urgent assistance. The panic attack is distinguished from other forms of anxiety by its intensity and its sudden, episodic nature. Panic attacks are not always indicative of a mental disorder, and up to 10 percent of otherwise healthy people experience an isolated panic attack per year (Barlow, 1988; Klerman et al., 1991).
Panic attacks are often experienced by sufferers of anxiety disorders, agoraphobia and other psychological conditions involving anxiety. A phobic will often experience a panic attack as a direct result of exposure to their trigger. These panic attacks are usually short-lived and rapidly relieved once the trigger is escaped. In conditions of chronic anxiety one panic attack can often roll into another one, leading to nervous exhaustion over a period of days.
What are the symptoms of a panic attack?
As described above, the symptoms of a panic attack appear suddenly, without any apparent cause. They may include
· Racing or pounding heartbeat
· Chest pains
· Dizziness, lightheadedness, nausea
· Difficulty breathing
· Tingling or numbness in the hands
· Flushes or chills
· Dreamlike sensations or perceptual distortions
· Terror--a sense that something unimaginably horrible is about to occur and one is powerless to prevent it
· Fear of losing control and doing something embarrassing
· Fear of dying
· Flushed Face and Chest
A panic attack typically lasts for several minutes and is one of the most distressing conditions that a person can experience. Most who have one attack will have others. When someone has repeated attacks, or feels severe anxiety about having another attack, he or she is said to have panic disorder.
What is panic disorder?
Panic disorder is a serious health problem in the United States. At least 1.6 percent of adult Americans, or 3 million people, will have panic disorder at some time in their lives. The disorder is strikingly different from other types of anxiety in that panic attacks are so sudden, appear to be unprovoked, and are often disabling.
Once someone has had a panic attack--for example while driving, shopping in a crowded store, or riding in an elevator--he or she may develop irrational fears, called phobias, about these situations and begin to avoid them. Eventually, the pattern of avoidance and level of anxiety about another attack may reach the point where the individual with panic disorder may be unable to drive or even step out of the house. At this stage, the person is said to have panic disorder with agoraphobia. Thus panic disorder can have as serious an impact on a person's daily life as other major illnesses--unless the individual receives effective treatment.
Is panic disorder serious?
Yes, panic disorder is real and potentially disabling, but it can be controlled with specific treatments. Because of the disturbing symptoms that accompany panic disorder, it may be mistaken for heart disease or some other life-threatening medical illness. People frequently go to hospital emergency rooms when they are having a panic attack, and extensive medical tests may be performed to rule out these other conditions.
Others often try to reassure the person who is having a panic attack that he or she is not in great danger. Expressions such as "nothing serious," "all in your head," or "nothing to worry about" may give the incorrect impression that there is no real problem and that treatment is not possible or necessary.
What is the treatment for panic disorder?
Thanks to research, there are a variety of treatments available, including several effective medications, and also specific forms of psychotherapy. Often, a combination of psychotherapy and medications produces good results. Some improvement may be noticed in a fairly short period of time--about 6 to 8 weeks. Thus appropriate treatment of panic disorder can prevent panic attacks or at least substantially reduce their severity and frequency--bringing significant relief to 70 to 90 percent of people with panic disorder.
In addition, people with panic disorder may need treatment for other emotional problems. Depression has often been associated with panic disorder, as have alcohol and drug abuse. Recent research also suggests that suicide attempts are more frequent in people with panic disorder. Fortunately, these problems associated with panic disorder can be overcome effectively, just like panic disorder itself.
Tragically, many people with panic disorder do not seek or receive treatment. To encourage recognition and treatment of panic disorder, the U.S. National Institute of Mental Health (NIMH) is sponsoring a major information campaign to acquaint the public and health care professionals with this disorder. NIMH is the agency of the U.S. government responsible for improving the mental health of the American people by supporting research on the brain and mental disorders and by increasing public understanding of these conditions and their treatment.
What happens if panic disorder is not treated?
Panic disorder tends to continue for months or years. It typically begins in young adulthood, but the symptoms may arise earlier or later in life. If left untreated, it may worsen to the point where the person's life is seriously affected by panic attacks and by attempts to avoid or conceal them. In fact, many people have had problems with friends and family or lost jobs while struggling to cope with panic disorder. It does not usually go away unless the person receives treatments designed specifically to help people with panic disorder.
So, if you or someone you know has symptoms like those described in this article, it is important to see a health care professional for a correct diagnosis and proper treatment.
How Common Is Panic Disorder?
About 1.7% of the adult U.S. population ages 18 to 54 - approximately 2.4 million Americans - has panic disorder in a given year. Women are twice as likely as men to develop panic disorder. Panic disorder typically strikes in young adulthood. Roughly half of all people who have panic disorder develop the condition before age 24.
What Causes Panic Disorder?
Heredity, other biological factors, stressful life events, and thinking in a way that exaggerates relatively normal bodily reactions are all believed to play a role in the onset of panic disorder. The exact cause or causes of panic disorder are unknown and are the subject of intense scientific investigation.
Studies in animals and humans have focused on pinpointing the specific brain areas and circuits involved in anxiety and fear, which underlie anxiety disorders such as panic disorder. Fear, an emotion that evolved to deal with danger, causes an automatic, rapid protective response that occurs without the need for conscious thought. It has been found that the body's fear response is coordinated by a small structure deep inside the brain, called the amygdala.
The amygdala, although relatively small, is a very complicated structure, and recent research suggests that anxiety disorders may be associated with abnormal activitation in the amygdala. One aim of research is to use such basic scientific knowledge to develop new therapies.
What Treatments Are Available for Panic Disorder?
Treatment for panic disorder includes medications and a type of psychotherapy known as cognitive-behavioral therapy, which teaches people how to view panic attacks differently and demonstrates ways to reduce anxiety. NIMH is conducting a large-scale study to evaluate the effectiveness of combining these treatments. Appropriate treatment by an experienced professional can reduce or prevent panic attacks in 70% to 90% of people with panic disorder. Most patients show significant progress after a few weeks of therapy. Relapses may occur, but they can often be effectively treated just like the initial episode.
Can People With Panic Disorder Also Have Other Illnesses?
Research shows that panic disorder can coexist with other disorders, most often depression and substance abuse. About 30% of people with panic disorder abuse alcohol and 17% abuse drugs, such as cocaine and marijuana, in unsuccessful attempts to alleviate the anguish and distress caused by their condition. Appropriate diagnosis and treatment of other disorders such as substance abuse or depression are important to successfully treat panic disorder.
Panic Attacks and Panic Disorder
A panic attack is a discrete period of intense fear or discomfort that is associated with numerous somatic and cognitive symptoms (DSM-IV). These symptoms include palpitations, sweating, trembling, shortness of breath, sensations of choking or smothering, chest pain, nausea or gastrointestinal distress, dizziness or lightheadedness, tingling sensations, and chills or blushing and “hot flashes.” The attack typically has an abrupt onset, building to maximum intensity within 10 to 15 minutes. Most people report a fear of dying, “going crazy,” or losing control of emotions or behavior. The experiences generally provoke a strong urge to escape or flee the place where the attack begins and, when associated with chest pain or shortness of breath, frequently results in seeking aid from a hospital emergency room or other type of urgent assistance. Yet an attack rarely lasts longer than 30 minutes. Current diagnostic practice specifies that a panic attack must be characterized by at least four of the associated somatic and cognitive symptoms described above. The panic attack is distinguished from other forms of anxiety by its intensity and its sudden, episodic nature. Panic attacks may be further characterized by the relationship between the onset of the attack and the presence or absence of situational factors. For example, a panic attack may be described as unexpected, situationally bound, or situationally predisposed (usually, but not invariably occurring in a particular situation). There are also attenuated or “limited symptom” forms of panic attacks.
Panic attacks are not always indicative of a mental disorder, and up to 10 percent of otherwise healthy people experience an isolated panic attack per year (Barlow, 1988; Klerman et al., 1991). Panic attacks also are not limited to panic disorder. They commonly occur in the course of social phobia, generalized anxiety disorder, and major depressive disorder (DSM-IV). Panic disorder is diagnosed when a person has experienced at least two unexpected panic attacks and develops persistent concern or worry about having further attacks or changes his or her behavior to avoid or minimize such attacks. Whereas the number and severity of the attacks varies widely, the concern and avoidance behavior are essential features. The diagnosis is inapplicable when the attacks are presumed to be caused by a drug or medication or a general medical disorder, such as hyperthyroidism.
Lifetime rates of panic disorder of 2 to 4 percent and 1-year rates of about 2 percent are documented consistently in epidemiological studies (Kessler et al., 1994; Weissman et al., 1997) (Table 4-1). Panic disorder is frequently complicated by major depressive disorder (50 to 65 percent lifetime comorbidity rates) and alcoholism and substance abuse disorders (20 to 30 percent comorbidity) (Keller & Hanks, 1994; Magee et al., 1996; Liebowitz, 1997). Panic disorder is also concomitantly diagnosed, or co-occurs, with other specific anxiety disorders, including social phobia (up to 30 percent), generalized anxiety disorder (up to 25 percent), specific phobia (up to 20 percent), and obsessive-compulsive disorder (up to 10 percent) (DSM-IV). As discussed subsequently, approximately one-half of people with panic disorder at some point develop such severe avoidance as to warrant a separate description, panic disorder with agoraphobia.
Panic disorder is about twice as common among women as men (American Psychiatric Association, 1998). Age of onset is most common between late adolescence and midadult life, with onset relatively uncommon past age 50. There is developmental continuity between the anxiety syndromes of youth, such as separation anxiety disorder. Typically, an early age of onset of panic disorder carries greater risks of comorbidity, chronicity, and impairment. Panic disorder is a familial condition and can be distinguished from depressive disorders by family studies (Rush et al., 1998).
Phobia
Psychologists use the term phobia, which comes from the Ancient Greek word for fear (φόβος, fovos), for a number of psychological conditions that can seriously disable their carriers.
Phobias are the most common form of anxiety disorder. An American study by the National Institute of Mental Health (NIMH) found that between 5.1 and 21.5 percent of Americans suffer from phobias. Broken down by age and gender, the study found that phobias were the most common psychiatric illness among women in all age groups and the second most common illness among men older than 25.
Most psychologists divide phobias into three categories:
social phobias - fears to do with other people and social relationships such as performance anxiety, fears of eating in public etc.
specific phobias - fear of a single specific panic trigger, like dogs, flying, running water and so on.
agoraphobia - a generalised fear of leaving your home or your small familiar 'safe' area, and of the inevitable panic attacks that will follow. Agoraphobia is the only phobia regularly treated as a medical condition.

Many specific phobias, such as fears of dogs, heights, spider bites, and so forth, are extensions of fears that everyone has. People with these phobias treat them by avoiding the thing they fear.
Many specific phobias can be traced back to a specific triggering event, usually a traumatic experience at an early age. Social phobias and agoraphobia have more complex causes that are not entirely known at this time. It is believed that heredity, genetics and brain-chemistry combine with life-experiences to play a major role in the development of anxiety disorders and phobias.
Phobias vary in severity among individuals, with some phobics simply disliking or avoiding the subject of their fear and suffering mild anxiety. Others suffer fully-fledged panic attacks with all the associated disabling symptoms.
The name of a phobia generally contains a Greek word for what the patient fears plus -phobia. Creating these terms is something of a word game. Few of these terms are found in medical literature. It is possible for a sufferer to become phobic about virtually anything.
Common phobias include:
· Arachnophobia - Fear of spiders.
· Anthrophobia - Fear of people or society
· Aerophobia - Fear of drafts, air swallowing or airborne noxious substances.
· Agoraphobia - Fear of the outdoors, crowds or uncontrolled social conditions.
· Claustrophobia - Fear of confined spaces.
· Acrophobia - Fear of heights.
· Cancerophobia - Fear of cancer.
· Astraphobia - Fear of thunder and lightning.
· Necrophobia - Fear of death or dead things.
· Cardiophobia - Fear of heart disease.
· Dental phobia - Fear of dentists, dental surgery, or teeth.
Treatment
Some therapists use virtual reality to desensitize patients to the feared thing. Other forms of therapy that may be of benefit to phobics are graduated exposure therapy and cognitive behavioural therapy (CBT). Anti-anxiety medication can also be of assistance in some cases. Most phobics understand that they are suffering from an irrational fear, but are powerless to override their initial panic reaction.
Graduated Exposure and CBT both work towards the goal of desensitising the sufferer, and changing the thought patterns that are contributing to their panic. Gradual desensitisation treatment and CBT are often extremely successful, provided the phobic is willing to endure some discomfort and to make a continuous effort over a long period of time. Practitioners of neuro-linguistic programming (NLP) claim to have a procedure that can be used to alleviate most specific phobias in a single therapeutic session, though this has not yet been verified scientifically.
Post-traumatic stress disorder (PTSD)
Post-traumatic stress disorder (PTSD), formerly and colloquially called shell shock (this is a World War One term), battle fatigue (World War II), and operational exhaustion (Korean War), is a term for the psychological consequences of exposure to stressful, life-threatening and traumatic experiences. Symptoms include nightmares and flashbacks, sleep abnormalities, extreme distress resulting from personal "triggers", and emotional detachment with the possibility of simultaneous suffering of other psychiatric disorders. Experiences likely to induce the condition include rape, combat exposure, and childhood physical abuse. Unlike brief reactive psychosis, PTSD is a chronic condition.
PTSD is distinguished from normal grief and adjustment with traumatic events in that the normal emotional effects of traumatic events will tend to subside after several months or years, while in PTSD the emotional effects are ongoing. Most people who experience traumatic events will not have PTSD.
In earlier times and even today, shell shock has been regarded as simple cowardice, an unwillingness to put one's welfare at risk when danger is at hand. The modern psychological evaluation disagrees strongly. Shell shock is a mental condition in which the individual involved is perilously close to a break from reality, usually by succumbing to any of several neuroses or psychoses.
PTSD was first recognized in combat veterans following many historical conflicts; the term "shell shock" dates to World War I. At first, the medical community believed that shell shock resulted directly from the stress caused by the noise of repeated shell explosions. The modern understanding of the condition dates to shortly after the Vietnam War. PTSD may be experienced following any traumatic experience or series of experiences that do not allow the victim to readily recuperate from the detrimental effects of stress. It is believed that of those exposed to traumatic conditions, around 9% will experience some symptoms. In peacetime, 30% of those that suffer will go on to develop a chronic condition; in wartime, the levels of disorder are believed to be somewhat higher.
PTSD is treated by psychotherapy (cognitive-behavioral therapy, group therapy, and exposure therapy are popular) and drug therapy (Prozac, Effexor, Seroquel, and Zoloft). Talk therapy may prove useful, but only insofar as the individual victim is enabled to come to terms with the trauma suffered and successfully integrate the experiences in a way that does not further damage the psyche. PTSD may co-occur with depression.
Treatment of trauma
Two controversial techniques for the treatment of trauma are EMDR and TIR:

EMDR (Eye Movement Desensitization and Reprogramming) is a technique developed by Dr. Francine Shapiro, in which the client supposedly uses the movement of his or her eyes to access the traumatic event and allow the integration of emotions and sensations that occurred during the traumatic event.
TIR (Traumatic Incident Reduction) is a less well known technique for reducing and eliminating the effects of a traumatic event. TIR is more of a graduated exposure technique that is controlled by the client. In TIR the client retells the trauma and releases the emotions held in check. In addition the client remembers the event and allows the conscious mind to process any decisions, intentions and cognitive distortions that might have occurred during or after the trauma. Practitioners who have been trained in both EMDR and TIR report that TIR is safer because it is focused on a single event and EMDR can occasionally trigger several events and multiple emotions. Interviews with these practitioners have suggested that, while they continue to use both techniques, TIR is the preferred intervention for known traumatic events where the client wants insight and understanding about the event and the aftereffects of the trauma.
Separation anxiety disorder
Separation anxiety disorder (or simply separation anxiety) is a psychological condition in which an individual has excessive anxiety regarding separation from home, or from those with whom the individual has a strong attachment. Separation anxiety is often characterized by some of the following symptoms:
· Recurring distress when separation from home or subject of attachment is anticipated
· Persistent, excessive worry about losing subject of attachment
· Continuing reluctance or refusal to leave the home or subject of attachment elsewhere because of fear of separation
· Excessive fear about being alone without subject of attachment
Social anxiety
Social anxiety, sometimes known as social phobia or social anxiety disorder (SAD), is a common form of anxiety disorder that causes sufferers to dread the social interactions and public events of everyday life, e.g. parties, meetings, or even making a phone call or walking into a shop to purchase goods.
Many people have 'butterflies' or minor nerves before a date, party, or some other event that will put them on public display, but that usually does not prevent them from attending. A true social phobia is an overwhelming fear, which in extreme cases can keep the sufferer housebound and isolated for long periods of time. They are abnormally afraid of being judged, watched and possibly humiliated in public as a result of their actions, behaviour or appearance.
Social phobia should not be confused with panic disorder. Sufferers of panic disorder are convinced that their panic comes from some dire physical cause, and often go to the hospital or call for an ambulance during or after their attacks. Social phobics may experience a panic attack when triggered, but they are aware that it is extreme anxiety they are experiencing, and that the cause is an irrational fear. Few social phobics would willingly go to a hospital in that instance, because they fear rejection and judgement by authority figures (e.g. medical staff.) Dealing with authority figures is particularly difficult for most social phobics, as is making phone inquiries, attending dates, parties and job interviews.
The most common social phobia is glossophobia, the fear of public speaking or performance, also known as stage fright.
Examples of specific social phobias (as opposed to generalized social phobia) include fears of writing in public, blushing (erythrophobia), eating in public, and using public restrooms (see paruresis.)
Social phobia has only recently been recognised as a legitimate medical disorder in its own right, rather than being considered a manifestation of other problems. It can often be successfully treated with a combination of cognitive behaviour therapy (CBT) and group therapy. Anti-anxiety medication and anti-depressants can also sometimes be useful therapeutic agents.

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