Early detection and prevention of chronic PTSD in trauma survivors

PTSD (Post-traumatic Stress Disorder) has been found to often and persistently affect people who have undergone events that are traumatizing. The beginning and early signs of this disorder are easily noticeable, making it possible to detect and prevent it. Experimental and theoretical findings have provided certain disease causing processes and factors that may lead to PTSD. According to controlled studies, preventive measures propelled by theories, for example the CBT (cognitive behaviour therapy), or pharmacological interventions that focus on the stress hormone have been effective in sampled survivor groups. The efficiency of early clinical methods is still unknown. However, the results obtained from large numbers do not consider the individual diversity in the origin and development of PTSD; hence, we study and explore existing proof of PTSD avoidance as well as state why it is necessary to improve early detection of the disorder and intervention of the paths that lead to chronic PTSD in individuals (Gevonden, Shalev, & Wei, 2016).

Terror, wars, disasters and other traumatic experiences may have detrimental psychological effects that last for long into the lives of the victims. No other consequence of traumatic experiences has been studied as extensively as PTSD. It therefore recapitulates psychopathology after traumatic events. PTSD is comprised of symptoms and clinical features that are related to events (intrusive remembrance of event aspects, hyper-vigilance, trying to avoid reminders) as well as anhedonia, hyperarousal, or dysphoria. PTSD is a common effect of mundane traumatic experiences, road accidents for instance (7 to 26%) (Heron-Delaneyet. et al., 2013), as well as being exposed to threats such as war for a long time (8 to 12.7% among U.S. soldiers who are exposed to the warzone) (Gevonden, Shalev, & Wei, 2016).

Unlike other disorders of a mental nature, PTSD has a clear beginning point and follows a particular triggering effect. The early signs of PTSD are seen within days after the victim is exposed to trauma. Many victims who are involved in traumatizing experiences receive emergency care. Such conditions provide opportunities to identify survivors who are at risk and provide preventive measures. The earliest techniques of prevention are included in PTSD's pathogenesis conceptual models discussed below. Although PTSD possesses these favourable characteristics, the systematic prevention of the disorder is still elusive and has been prevalent in the last forty years, both in civilians as well as military personnel (Kilpatrick et. al, 2013). Literature Review PTSD may be persistent and not slacken for many years and even decades in a section of survivors of traumatic events. According to the second phase of the National Vietnam Veterans Readjustment Study, which represented the whole nation, there is slight improvement and significant deterioration of PTSD victims (Marmar et. al, 2015). Chronic PTSD is often connected to bad physical health, poor well-being and lack of employment. PTSD often comes with substance use, anxiety and mood disorders (Gallaghar & Brown, 2015; Galatzer et. al, 2013). Several mental disorders occurring at simultaneously make the outcome worse and tax public health.

The factors that slow PTSD prevention are yet to be clearly explained but a number of likely possibilities have been proposed. The preventive interventions used currently originated from proof of chronic PTSD. These can fail to engage PTSD's pathogenesis properly. Large-scale implementation of efficient intervention is lacking. The detection of risks is not perfect. In cases and regions where the hostilities persist, delivery of service becomes difficult. (e.g., in mass relocation, prolonged abuse, war). The barriers that prevent survivors with symptoms from seeking help have been documented in studies. Where intense individual intervention is required, the resources in the community may be insufficient. All the same, a body of work that is growing quickly helps us to understand post-traumatic psychopathology, the neurobiological mechanisms involved, the symptoms that result from this and the perceived trajectory moderators (Gevonden, Shalev, & Wei, 2016). Current Limitations of Individual Risk Prediction Many empirical PTSD risk factors are already known. They can be categorized into peri-traumatic factors, pre-exposure 'vulnerability', reactions that are event-related directly, and adversities that occur after exposure. Pre-existing vulnerability factors include neurobiological factors, for example genetic composition and regulation of epigenetics through environment-related factors like previous exposure to trauma, psychiatric history of the individual and family, insufficient education, and stressful conditions of living that lack enough resources; other factors comprise of behavioural aspects, such as, high emotional reaction and impaired executive function (Aupperle, 2012). Peri-traumatic factors comprise of the type and intensity of the trauma (e.g., intentional vs. unintentional), expression of genes, physiological arousal (such as heartrate) and symptoms of peri-trauma. Factors associated with post-exposure range from 'secondary' stressors (such as lack of employment due to the event) to support or protective factors (Gevonden, Shalev, &Wei, 2016).

Despite the availability of all these risk indicators, this information is still not of assistance in the prediction of individual risk. Up to this day, one limitation of research is the application of statistical modeling. This does not account for diversities within groups properly. Generally, research uses central tendency statics thus assuming that the sample groups (e.g. accident victims and rape victims) possess inherent homogeneity. However, individuals exposed to trauma are diverse, with each possessing their unique environmental provisions and pressures, vulnerabilities, psychological composure and the event's subjective appraisal (Gevonden, Shalev, & Wei, 2016). Studies conducted recently have applied advanced analytic techniques to define system trajectories in individuals (contrary to using the average of the group). Risk predictions have been used using machine learning algorithms. A description of numerous categories of indicators of risk includes combinations of early symptoms, severity of injury, initial distress, injuries to the head and subjective requirement of assistance (Galatzer et. al, 2014; Karstoft et. al, 2015). This makes individual prediction more versatile. Present Research explores the clinical effectives of these algorithmic solutions in individual risk calculation and predicting when intervention is necessary (Gevonden, Shalev, & Wei, 2016). Theory-Driven Interventions To affect the relevant pathogenic mechanisms, this progression indicates that the timing of interventions and opportunity window are very important. For instance, memories of trauma may become stronger hours after the occurrence of the trauma, or when the survivor is sleeping on the first night. Therefore, interventions meant to prevent the consolidation of initial memory (psychological or pharmacological) must be done during that period. Other posttraumatic psychopathology mechanisms, such as memory change, nociceptive circuits and processing of the context could take place within a period that is not defined currently, thus requiring intervention to be delivered on a time-dependent manner (Gevonden, Shalev, & Wei, 2016).

Psychological or Behavioral Interventions The Demise of Psychological Debriefing Psychological debriefing was practiced extensively in the 1980s and 1990s. Its goal was to prevent long-term symptoms occurring from traumatic events. This was through the promotion of fast emotional processing of post trauma within a short time of exposure (Gevonden, Shalev, &Wei, 2016). The survivors of events that were prone to trauma were offered debriefing without evaluation or diagnosis. Exposure was considered to be a sufficient risk indicator. This method normally involved one session, a few hours or days after the event, as an individual or as a group. It included basic trauma exposure education as well as its effects, sharing and validating experiences from individuals and in anticipation for future experiences (Bryant, 2015).

The method is still known widely and holds validity. As such, it could be used by the average person after being exposed to trauma. However, well-conducted research found no proof of benefits of debriefing; it actually shows this method can negatively affect recovery (Gevonden, Shalev, & Wei, 2016). In 1997, the first negative Cochrane review was published causing most of the treatment guidelines to be updated and advised against administration of routine, one session psychological debriefing to adults exposed to trauma (Gevonden, Shalev, & Wei, 2016). Cognitive Behavioral Therapy (CBT) CBT focused on trauma involves various methods whose objectives are distinct. CBT based on exposure, characterized by the PE (prolonged exposure) protocol (Gevonden, Shalev, & Wei, 2016) aims at achieving and maintaining the extinction of fear through exposure to repeated stimuli in contexts that are considered safe. This creates a sense of reaction control as well as decreasing avoidance. The beliefs that the patient holds regarding the meaning of the trauma and what it currently implies are challenged by cognitive-based CBT. This is done with the aim of changing patient's reaction to reminders of trauma, abolishing behavioral rules and restrictions that come from traumatic events and to minimize negative appraisal of individuals and others. People who have symptoms are offered CBT either as individuals or in groups ("intervention targets" are not available). The process normally involves a number of weekly sessions, training exercises in vivo and homework. The treatment requires skilled therapists and may continue for more than three months (Gevonden, Shalev, & Wei, 2016).

In the long-term, exposure-based CBT has resulted in moderately positive outcomes in alleviating PTSD or any other symptom. A study was conducted by Rothbaum et al. (2012), focusing on a modification of Prolonged Exposure (PE) in assault, rape and survivors of vehicle accidents about 12 hours after the trauma. The study indicates that on the intervention group there are lower PTSD symptoms 4 and 12 weeks later, especially among the victims of sexual abuse. Furthermore, the cohort shows the possibility of PE mitigating PTSD symptoms among the predisposed victims (Rothbaum et al., 2014); Rothbaum et al., 2012). A research shows 5 weeks of exposure-based CBT is effective to participants in the criteria that met severe stress disorder diagnostic in reducing PTSD. Another study found reduced PTSD symptoms after 13 months. However, this is not true 3 months after occurrence of the traumatic events. The small study with about 3 weeks of PE failed to give significant symptom improvement as compared to the outcomes arising out of subsequent supportive counseling (Freyth et al. 2010).

Presently, CBT is the mainstay of PTSD early prevention. However, several considerations make CBT systematic implementation difficult. For a start, CBT is unnecessary to many symptomatic survivors. Early interventions' meta-analysis indicates that CBT efficiency is felt in participants whose PTSD is diagnosable at the beginning of treatment (Roberts et al. 2010). Similarly, indications by the Jerusalem Trauma Outreach and Prevention Study (J-TOPS) have shown sub-threshold PTSD symptoms survivors are equally able to recover regardless of CBT (Shalev et al. 2012). Rothbaum et al. (2012) study suggests the efficiency of CBT done early to be greatly dependent on the particular type event that caused the trauma. CBT was very effective in victims who had suffered sexual abuse and quite effective on accident victims but was not as effective with victims of physical abuse. Additionally, CBT is said to equally decrease chronic PTSD symptoms if administered one or five months after the traumatic experience (Shalev et al. 2012) and its initial effect conserved for a three-year period. Pharmacological Interventions In an attempt towards prevention of post-traumatic symptoms, examination of various pharmacological agents was carried out. The 2014 Cochrane review concluded that generally, there exists a moderate quality evidence for hydrocortisone efficacy. There is no evidence for escitalopram, propranolol, temazepam, and gabapentin Amos. With more studies clarifying the underlying the neurobiological process, this field has been developing rapidly (Amos et al. 2014).

Oxytocin is employed in emotion social engagement, stress regulation and attachment. Olff et al. (2010) report suggests that oxytocin reduces the response to fear, while increasing social functioning might buffer PTSD development (Frijling et al. 2014). Currently, the group is randomly conducting control trial in order to establish the efficacy of administrating intranasal oxytocin to preventing PTSD. Another neuroendocrine, Neuropeptide Y (NPY), is an intervention candidate. A study involving animals to determine NPY effect on the brain of a rat shows NPY has a noticeable effect on the reduction of PTSD-like symptoms development. the effect is Possibly due to modified stress-triggered dysregulation of hypothalamic-pituitary-adrenal axis and also the central noradrenergic activity (Gevonden, Shalev, & Wei, 2016). Apart from hormonal intervention, to alter processing of emotions negatively as well as to enhance neurocognitive function, neural-behavioural training is evolving as an effective intervention. The trainings have produced a positive effect in the treatment of depression and anxiety disorders (Gevonden, Shalev, & Wei, 2016). Target-specific paradigms for the early interventions are emerging due to increasing evidence of executive functions and impaired emotion regulation in PTSD. Clinical Prevention in Context The reviewed studies give a summary of the preventive interventions' 'clinical' implementation. This implies that the specialized treatment provision to survivors screened or diagnosed in accordance with a model of medical care. Zatzick et al. (2013) challenged the model and restricted setting as they evaluated a stepped collaborative care model. Their model saw the introduction of care managers who were supposed to look into the unique needs of patients employing required intervention modalities, for instance, motivation Interview, CBT components and pharmacotherapy. Furthermore, the care team was to measure the symptoms of the patients repeatedly, giving adjusted care levels. The outcome showed the effectiveness and feasibility of the method resulting in reduced PTSD symptoms among the intervention group (Gevonden, Shalev, & Wei, 2016).

The multi-method, need-based model is perceived as the alternative to the single clinical intervention. This component is probably valuable in the stepwise approach on early interventions. Subsequently, the 'heavy artillery' clinical interventions can be recommended to patients who show no response to the need-based approach that is earlier, cheaper, and not as demanding. By extension, the current research is generally said to be limited to offering implementation of single protocols, and thus it did not explore all the sequent implementations on interventions that were appropriate as far as time is concerned. Such information ought to be sought and then actively researched (Gevonden, Shalev, & Wei, 2016).

From the perspective of risk assessment, PTSD seems multi-causal; therefore, patients whose vulnerabilities are different, varying circumstances to which they were exposed, as well as post-exposure factors are at a risk of expressing a complex of PTSD symptoms. This is because of unique individual-specific pathways and respective response to interventions that are specific for each individual. Mapping the various paths that lead to PTSD condition together with mapping the paths into subsets of trauma individuals are exposed to, is one of the ways employed to advance PTSD prevention. With the availability of such knowledge, early-personalized target-specific interventions might replace generic treatment protocols whose practices are not effective for everyone (Gevonden, Shalev, & Wei, 2016). Conclusion The prevention of PTSD, despite its urgency, has been under-researched and inappropriately explored. This is the general perception emerging from this review. Implementation of treatment protocols was with disregard to sample differences and vulnerabilities that are unique in every individual (Kearns et al. 2012). Rudimentary and theoretical assumptions translated hastily result in haphazard case series with clinical trials that are randomized are unable to give information on the overall real-time PTSD effectiveness. Such situation is typical for a preliminary 'proof of concept' research where treatment protocols ought to be rigidly implemented for procedure reliability. They lack empirical foundation required to neither stratify sample nor modify treatment approaches as per the requirements and the progress. Apparently, the prevention of PTSD studies has successfully undergone the first phase of research in relative ignorance of many parameters (Gevonden, Shalev, & Wei, 2016).

Regardless of these critiques, the current knowledge base has several lessons that can be beneficial. They should lead to guide better-informed efforts. These efforts should include the three efficient secondary prevention tenets; understanding pathogenesis, risk assessment, and the necessary strategies of intervention. Recent research points in the same direction.