Post-traumatic stress disorder Flashcards

1
Q

What is PTSD ?

A

PTSD - An anxiety disorder

Associated with experiencing or witnessing single, repeated or multiples events that could include:
- Serious accidents
- Assault (physical or sexual)
- Abuse (including childhood or domestic)
- Work-related exposure to trauma (including remote exposure)
- Trauma related to serious health problems or childbirth experiences (e.g intensive care admission or neonatal death)
- War and conflict
- Torture

COVID ICU increased this

You don’t need to be the one experienced the trauma you can get it resulting from someone else getting it

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2
Q

What did studies on WW 1 and 2 veterans show with their PTSD like symptoms?

A

It was initially believed that the concussion or artillery shells would cause CNS damage

This did not explain the cases of shock or distress among those who were not exposed to the exploding shells

Studies were conducted which showed that most cases of PTSD were psychological in origin and not organic.

Particularly the extend and severity of distress among Vietnam veterans contributed to the evolution of PTSD as an independent diagnosis category

However tragedy is not limited to war and the development of PTSD is not limited to soldiers

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3
Q

How common is PTSD?

A

Estimated lifetime prevalence: 6.8% (these numbers will change according to the diagnostic criteria used)

Most common traumas are combat for men and sexual molestation for woman (O’Carroll 2019)

It can affect people of any age

Not everyone who experiences trauma develops PTSD: NICE 2019: 25% - 30% of people who experienced a traumatic event develop PTSD

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4
Q

When are symptoms likely to develop, when will patients seek help and how can we help them?

A
  • Symptoms can develop immediately but in some (<15%) the onset of symptoms may be delayed
  • PTSD sufferers may not seek help for months / years despite considerable distress
  • Assessment of PTSD can, however, present significant challenges as many people avoid talking about their problems presenting with associated complaints
  • Many sufferers may also believe its untreatable posing a barrier to seeking and getting treatment
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5
Q

Why should you check in on PTSD patients long term ?

A

Because PTSD symptoms subside in many people over time, symptoms wax and wane, it is important to examine long term experience

Vast bulk of symptoms subside within 1 month (mental health won’t see) , after this is PTSD

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6
Q

What are the core features of PTSD?

A

PTSD and complex PTSD may present with the following;
- Re-experiencing
- Avoidance
- Hyperarousal (including hyper vigilance, anger and irritability)
- Negative alterations in mood and thinking

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7
Q

What are intrusive memories / Re-experiencing symptoms ?

A

Trauma is re-experienced through intrusive and distressing thoughts, images, flashbacks or nightmares

Flashbacks feel ‘real’ acting or feeling like the event is recurring

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8
Q

What is avoidance ?

A

Avoidance of thoughts, feelings, people, places and activities related to the event

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9
Q

What is Hyperarousal ?

A

Constantly on alert!

Will experience;
- Physiological activity (e.g increased heart rate)
- Sleep disturbance
- Irritability
- Anger
- Hypervigilance

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10
Q

What are some risk factors for developing PTSD?

A
  • Exposure to a traumatic event
  • Severity of incident
  • Female sex
  • Younger age
  • Previous experience of trauma
  • Presence of multiple major life stressors
  • Low social support, social disadvantage
  • History of mental health disorder
  • In children exposed to trauma, the risk of PTSD is reduced by good family support and when there its less parental distress
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11
Q

What is more likely to cause PTSD natural disasters of intentional harm ?

A

Stressors involving International harm appear more likely to cause PTSD than are natural disasters

How deliberate human-caused stressors are judged to be also seem to be important

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12
Q

What are the susceptibility factors in PTSD?

A
  • Psychological
  • Biological
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13
Q

What are some Psychological factors preventing PTSD?

A

Resilience !
- Majority of adults are exposed to at least one potentially traumatic event in their lifetimes
- Although most experience confusion and distress, only a small subset of exposed adults develop PTSD
- Adult capacity to maintain healthy psychological and physical functioning: Resilience

In 9/11 65% of the respondents had only 1 or no PTSD symptoms for the first 6 months
- Even more than half of people who were in World Trade Centre at time exhibited resilience

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14
Q

What are the Characteristics of Resilient people ?

A

Exceptional coping abilities ?
Denial?
- Evidence suggest its neither !

Characteristics of resilient people;
- Process a flexible adaptation to challenges
- Sense of continuity in their beliefs about themselves / lives
- Retain ability to regenerate positive experiences

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15
Q

What are some other Psychological factors that may precipitate PTSD?

A
  • Personal impact of the event
  • The extent of perceived control over future threats
  • How one is prepared to deal with a stressor
  • One’s beliefs and assumptions about trauma

These all affect how severe the impact of a stressor may be and how likely an individual is to develop PTSD

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16
Q

What are the biological factors that influence PTSD?

A
  • International PGC
  • 200,000 people, largest study ever on PTSD
  • 5 - 20% genetic influence within different populations (quite a small genetic contribution !)
  • Genetic risk overlapped with that for depression, insomnia, coronary artery disease, amongst others
  • First steps investigated to using genetic info to predict risk - Million Veterans Program
17
Q

What are the treatment options for PTSD?

A
  • Psychological prevention & treatment
  • Pharmacological treatment
18
Q

What methods should we NOT use to Prevent PTSD forming in adults?

A

Initially we thought psychological debriefing: talking through a trauma in a structured way with a counsellor soon after trauma, usually a single session - DOESNT WORK, MAKES WORSE! Causes;
- Secondary traumatisation
- Medicalising normal distress
- May prevent potentially protective responses of denial and distancing

NICE guidelines states that - Do NOT offer psychologically-focused debriefing for the prevention or treatment of PTSD

19
Q

How can we Prevent PTSD forming in adults?

A

Offer CBT to adults who have;
- acute stress disorder
- a diagnosis of PTSD
- clinically important symptoms of PTSD

And;
- Have been exposed to 1 or more traumatic events within the last month (CBT more effective in weeks following incident)
OR
- Have presented more than 1 month after a traumatic event

These interventions include;

  • Cognitive processing therapy
  • Cognitive therapy for PTSD
  • Narrative exposure therapy
  • Prolonged exposure therapy

EMDR for adults with a diagnosis of PTSD or clinically important symptoms of PTSD

Consider it for patients 1 and 3 months after a non-combat related trauma
OR
Offer it for patients who present 3 months after a non-combat related trauma

EMDR - Eye movement desensitisation and reprocessing

No one really knows why works - put a patient in, different stimulation with noises, tones, lights while thinking of trauma - can be used in young children onwards, not for combat trauma as may get triggered by lights and noises - battlefield

20
Q

What other research is emerging for PTSD treatment ?

A

TETRIS can be used to prevent PTSD symptoms!

  • Survivors of RTA’s (road traffic accidents) have fewer symptoms if they play Tetris within 6 hours of admission after also recalling their memory of the accident
  • Tetris is visually demanding
  • Thought to prevent intrusive aspects of traumatic memories becoming established by disrupting memory consolidation
  • Also studies looking into beta blockers to do similar things as well
21
Q

How can we treat PTSD in adults-pharmacologically ?

A
  • SSRI’s - Sertraline and Paroxetine both licences for PTSD
  • Venlafaxine (SNRI) also recommended (but off licence)

NICE recommends CBT or EMDR offered before medication where possible. Often used together

Trauma focused psychological treatments and pharmacological treatments !

22
Q

What are the general symptoms of PTSD?

A
  • Intrusive memories
  • Avoidance
  • Arousal
  • Emotional numbing