Ein Überblick über experimentelle Befunde zur Wirkung von Alkohol auf klinisch relevante Angst

Older adults in treatment for alcohol use disorders: service utilisation, patient characteristics and treatment outcomes

Background

In western countries demographic changes are leading to an ageing society. Consequently, the number of older adults with alcohol use disorders (AUDs) will rise and the demand of treatment is likely to increase. However, thus far not many older adults with an AUD are seeking treatment and little is known about the efficacy of treatment for older adults. The present study aimed at determining the proportion of older adults with an AUD in addiction treatment, particular characteristics and treatment outcomes of this clientele.

Methods

Using data of 10,860 patients with an AUD aged 60 and over that are documented within the national German addiction care system we conducted exploratory analyses with regard to prevalence, sociodemographic, disorder- and treatment-related variables.

Results

Overall, we found a low proportion of older patients in treatment due to AUDs, but highly positive treatment outcomes. With regard to sociodemographic and disorder-related characteristics, older females and late-onset patients in particular constitute a unique clientele.

Conclusions

The low service utilisation on the one hand but good treatment prognosis on the other emphasise the need to promote treatment seeking among older adults with AUDs. In this context, the special characteristics we found among older patients may contribute to better reach this population and to improve provisions of targeted treatment approaches.

The role of childhood trauma and stress reactivity for increased alcohol craving after induced psychological trauma: an experimental analogue study

BACKGROUND

Traumatic events are associated with alcohol use problems with increased alcohol craving as a potential mediator. There is still a lack of knowledge regarding the causal nature of this association and its underlying mechanisms. This study investigated the effects of acute trauma exposure on alcohol craving in healthy individuals considering the role of stress reactivity and childhood trauma (CT) using a laboratory randomized controlled design.

METHODS

Ninety-five healthy participants were randomly exposed to a trauma or a neutral film. History of CT, and pre- to post-film changes in craving (craving reactivity, CR), anxiety, skin conductance, heart rate, and saliva cortisol levels were assessed. Moreover, associations between trauma film exposure and CR, the moderating role of CT, and associations between CT, stress reactivity, and trauma-induced CR were analyzed.

RESULTS

Relative to the neutral film, the trauma film elicited an increase in CR in females but not in males. In males but not in females, the association between trauma film exposure and CR was moderated by CT, with trauma-induced CR increasing with the number of CT. In males, CT was related to decreased cortisol reactivity and increased heart rate and skin conductance response of which skin conductance was also associated with CR.

DISCUSSION

These findings provide further evidence for a causal link between traumatic experiences and CR. While this association seems to be stronger in females, males might still be at risk in case of other vulnerability factors such as CT, with altered sympathetic stress reactivity as a potential contributing mechanism.

Biological stress indicators as risk markers for increased alcohol use following traumatic experiences

Alcohol misuse is a common sequela of traumatic event experiences causing considerable morbidity and mortality. Although biological stress indicators have been identified as useful risk markers for the development of trauma-related disorders, no such biological indicators exist for the risk of increased alcohol use after trauma exposure. This is the first study to prospectively investigate the predictive value of long-term cortisol levels and acute stress reactivity for the risk of increased alcohol use following traumatic events. Male soldiers were examined before and 12 months following deployment using a standardized diagnostic interview. We analyzed the moderating role of baseline hair cortisol concentrations (HCCs, n = 153) as well as baseline salivary cortisol and alpha-amylase stress reactivity in response to a laboratory stressor (n = 145) in the association between new-onset traumatic events (according to the DSM-IV A1 criterion) and subsequent daily alcohol use. No main effects of pre-traumatic HCC or salivary stress markers on subsequent change in alcohol use were observed. However, we found that with decreasing HCC, the number of new-onset traumatic events was more strongly associated with subsequent alcohol use independent from changes in posttraumatic stress disorder symptoms. No such relation was seen for the acute stress reactivity data. Taken together, this study provides first evidence suggesting that individual differences in long-term cortisol regulation are involved in the association between traumatic experiences and subsequent alcohol use. HCC may thus serve as a potential target in the early identification of individuals vulnerable for increased alcohol use following traumatic events.

Propofol sedation during gastrointestinal endoscopy arouses euphoria in a large subset of patients

Background

Propofol is recommended for sedation in gastrointestinal endoscopy (GE), but preliminary data suggest addictive potentials.

Objective

The objective of this article is to evaluate the frequency of predominantly euphoric reaction after GE and patients' subsequent reminiscences.

Methods

Eighty-two patients undergoing elective GE under propofol sedation were enrolled in a prospective observational study. The grade of anxiety, expectation or relief about the examination's result and affective state in terms of cheerfulness, relaxation, activation, sedation and anxiety were surveyed using a numeric rating scale (1 to 10) immediately before (t1), after GE (t2) and seven days (t3) later. Statistics: hierarchical cluster analysis, heat map, χ2 test and paired t test.

Results

Mean propofol dosage was 264 ± 120 mg. Two clusters of mood changes emerged (t1 vs. t2). One (n = 46, 56.1%) was characterized by an unease reaction pattern with equal values regarding cheerfulness, relaxation and anxiety, while relaxation decreased; the other cluster showed a euphoric reaction pattern (n = 36, 43.9%) with markedly increased cheerfulness, relaxation and decreased anxiety. These effects intensified at recall (t3). Despite similar endoscopy results, euphoric cluster patients rated these more positively.

Conclusion

Propofol induces euphoria in nearly half of the patients undergoing elective GE with persisting, even enhanced reminiscence (germanctr.de, trial number DRKS00011202).

Associations between lifetime PTSD symptoms and current substance use disorders using a five-factor model of PTSD

This paper aimed to extend the existing knowledge on the association between PTSD symptoms, alcohol use disorders (AUD) and nicotine dependence (ND) by distinguishing between anxious and dysphoric arousal PTSD symptoms and by considering the putative contribution of additional comorbidity. Data stem from a cross-sectional study in a stratified, representative sample of 1483 recently deployed soldiers using standardized diagnostic interviews. All lifetime PTSD symptom clusters (occurrence of any symptom and number of symptoms) were associated with current AUD and ND in crude models except that anxious arousal was not related to AUD. Associations were reduced in magnitude when controlling for comorbidity. Current ND was related to the occurrence of any emotional numbing and to the number of re-experiencing symptoms above the contribution of other symptom clusters and comorbidity. In conclusion, associations between PTSD symptoms, AUD and ND may be partially attributable to additional comorbidity. Findings also yield further evidence for a role of emotional numbing and re-experiencing symptoms in the comorbidity between PTSD and ND and for a distinction between dysphoric and anxious arousal PTSD symptoms.

Drinking motives in alcohol use disorder patients with and without social anxiety disorder

The high comorbidity of alcohol use disorders (AUD) and social anxiety disorder (SAD) is often explained by excessive drinking in social situations to self-medicate social anxiety. Indeed, the motive to drink alcohol to lower social fears was found to be elevated in socially anxious persons. However, this social anxiety specific motive has not been directly investigated in primarily alcohol dependent individuals. We explored social anxiety, the motivation to drink alcohol in order to cope with social fears, and social anxiety as a consequence of drinking in AUD with and without comorbid SAD. Male AUD inpatients with (AUD+SAD group, N=23) and without comorbid SAD (N=37) completed a clinical interview and a questionnaire assessment. AUD+SAD patients reported higher levels of depression and an elevated motive to drink due to social anxiety but did not experience more social fears as a consequence of drinking. Previous results concerning alcohol drinking motives in order to relieve social fears could be replicated in a clinical AUD sample. Additionally, our findings suggest comorbid AUD+SAD patients to be more burdened regarding broader psychopathological symptoms. Thus, accessibility to SAD-specific screening and treatment procedures may be beneficial for primary AUD patients.

Riskanter Alkoholkonsum bei Patienten in ambulanter Psychotherapie

Zusammenfassung. Theoretischer Hintergrund: Bei ca. 20% der deutschen Bevölkerung ist der Alkoholkonsum als riskant einzustufen. Alkoholkonsum birgt Gesundheitsrisiken und beeinflusst emotionale und kognitive Prozesse. Fragestellung: Wie häufig ist riskanter Alkoholkonsum bei ambulanten Psychotherapiepatienten? Hängt er mit Diagnosen und Symptomen der Patienten zusammen und beeinflusst er die Wirksamkeit der Psychotherapie? Methode: Bei 254 ambulanten Psychotherapiepatienten mit affektiver- oder Angststörung wurden Prädiktoren riskanten Konsums ermittelt. Konsumstabilität und die Auswirkungen auf den Therapieprozess wurden bei N = 183 Personen untersucht. Ergebnisse: Ca. jeder vierte Psychotherapiepatient konsumierte riskante Mengen von Alkohol. Prädiktoren waren Geschlecht, Komorbidität und Ausgangsbelastung in der SCL-90-R. Ein negativer Einfluss auf das Therapieergebnis wurde nur bei depressiven Männern festgestellt. Nur ca. 1/3 der Patienten reduziert den Alkoholkonsum im Verlauf der Therapie. Schlussfolgerungen: Riskanter Alkoholkonsum ist bei Psychotherapiepatienten kaum häufiger als in der Allgemeinbevölkerung. Ohne alkoholspezifische Kurzinterventionen bleibt der Alkoholkonsum mehrheitlich unverändert.

Selbstmedikation und Sozialphobie

Zusammenfassung. Hintergrund: Der Fragebogen „Trinken wegen sozialer Angst” (TWSA; Wagner, Stangier, Heidenreich & Schneider, 2004 ) erfasst das Motiv, Alkohol zur Reduktion sozialer Angst einzusetzen. Das Instrument wurde bisher nur bei Alkoholabhängigen untersucht. Hier sollen Reliabilität und konvergente Validität in einer sozialphobischen sowie einer gesunden Stichprobe geprüft werden. Methode: 120 Patienten mit Sozialphobie und 120 Gesunde bearbeiteten den TWSA. Zur Überprüfung der Konstruktvalidität wurden Maße zur Psychopathologie, die Alkoholwirkungserwartungen und die Höhe des Alkoholkonsums erfasst. Ergebnisse: Der TWSA hat eine gute Reliabilität (Cronbachs α = .96). Es zeigen sich bedeutsame Korrelationen mit Maßen zur sozialen Angst. Ebenfalls ergeben sich Zusammenhänge zu Alkoholwirksamkeitserwartungen sowie zur konsumierten Alkoholmenge. Teilnehmer mit Sozialphobie erzielten höhere Werte als Gesunde. Diskussion: Die Ergebnisse belegen, dass der TWSA auch bei Patienten mit Sozialphobie und gesunden Personen reliabel und valide eingesetzt werden kann. Die für Patienten mit Sozialphobie erhöhten Werte unterstreichen die Notwendigkeit der Diagnostik komorbider substanzbezogener Störungen.