Objective: Gabapentin (GBP) is an anticonvulsant medication that is also used to treat restless legs syndrome (RLS) and posttherapeutic neuralgia. GBP is commonly prescribed off-label for psychiatric disorders despite the lack of strong evidence. However, there is growing evidence that GBP may be effective and clinically beneficial in both psychiatric disorders and substance use disorders. This review aimed to perform a systematic analysis of peer-reviewed published literature on the efficacy of GBP in the treatment of psychiatric disorders and substance use disorders. Methods: This review was performed according to the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) guidelines. The PubMed and Ovid MEDLINE literature databases were screened and filtered by using specific search terms and inclusion/exclusion criteria. The full texts of selected studies were subsequently retrieved and reviewed. The search terms generated 2,604 results from the databases. After excluding all duplicates, 1,088 citations were left. Thereafter, we applied inclusion and exclusion criteria; a total of 54 papers were retained for detailed review. Results: This literature review concludes that GBP appears to be effective in the treatment of various forms of anxiety disorders. It shows some effectiveness in bipolar disorder as an adjunctive therapeutic agent, while the evidence for monotherapy is inconclusive. In substance use disorders, GBP is effective for acute alcohol withdrawal syndrome (AWS) with mild to moderate severity; it reduces cravings, improves the rate of abstinence, and delays return to heavy drinking. GBP may have some therapeutic potential in the treatment of opioid addiction and cannabis dependence, but there is limited evidence to support its use. No significant benefit of GBP has been conclusively observed in the treatment of OCD, PTSD, depression, or cocaine and amphetamine abuse. Conclusion: GBP appears to be effective in some forms of anxiety disorders such as preoperative anxiety, anxiety in breast cancer survivors, and social phobia. GBP has shown to be safe and effective in the treatment of alcohol dependence. However, the literature suggests that GBP is effective as an adjunctive medication rather than a monotherapy. More clinical trials with larger patient populations are needed to support gabapentin’s off-label use in psychiatric disorders and substance use disorders. It is worth noting that numerous clinical studies that are discussed in this review are open-label trials, which are inherently less rigorously analyzed. Therefore, more extensive investigations are required to examine not only the efficacy of GBP, but also its safety and tolerance.

Objective: Smoking represents a major public health problem among patients with schizophrenia. To this end, some studies have investigated the efficacy of varenicline for facilitating smoking cessation in schizophrenia patients. The present review seeks to synthesize the results of these studies as well as document the reported side effects of using this medication.Methods: An electronic search was performed using five major databases: PubMed, Scopus, EMBASE, Web of Science, and Cochrane Library. Included in the current analysis were randomized clinical trials (RCTs) that have investigated the effect of varenicline in promoting smoking cessation in patients with schizophrenia. Risk of bias among included RCTs was assessed using the Cochrane Collaboration's quality assessment tool.Results: Among the 828 screened articles, only four RCTs, which involved 239 participants, were eligible for meta-analysis. In patients with schizophrenia, varenicline treatment when compared to placebo significantly reduced the number of cigarettes consumed per day [SMD (95% CI) = 0.89(0.57–1.22)] and expired carbon monoxide levels [SMD (95% CI) = 0.50 (0.06–0.94)] respectively.Conclusion: Despite a limited number of studies included in the meta-analysis, our results suggest that varenicline is an effective and safe drug to assist smoking cessation in patients with schizophrenia. Future large-scale well-designed RCTs are required to validate these findings.

Background: Obsessive-compulsive disorder (OCD) is a common behavioral disorder among adolescents and children. The selective serotonin reuptake inhibitors (SSRIs) are the first pharmacological choice for this condition due to mild adverse effect profile. Objective: This systematic review was performed to evaluate the efficacy of SSRI for OCD in adolescents and children. Methods: Search terms were entered into PubMed, PsycINFO, Scopus, CINAHL, and Google Scholar. The included studies were randomized, placebo-controlled trials of SSRIs conducted in populations of children and adolescents younger than 18 years. Change from baseline Children’s Yale-Brown Obsessive-Compulsive Scale (CY-BOCS), end-treatment CY-BOCS with respective SD, and response and remission rates were collected for continuous and dichotomous outcome assessment, respectively. Cochrane Rev Man software was used for meta-analyses, providing Forest plots where applicable. Results: SSRIs were superior to placebo with a small effect size. There was no additional benefit of combination treatment over cognitive behavioral therapy (CBT) alone, but CBT added substantial benefit to SSRI monotherapy. Fluoxetine and sertraline appear to be superior to fluvoxamine. Conclusion: The results of current systematic review and meta-analysis support the existing National Institute for Health and Care Excellence (NICE) guidelines for choosing CBT as first line of treatment and substituting it with SSRI, depending on patient preference. Adding CBT to current SSRI treatment is effective for non-responders and partial responders, but adding SSRI to ongoing CBT does not prove beneficial. The SSRIs have different effectiveness, and their relative efficacy remains to be investigated.

Background: Patients who suffer from major depressive episodes and bipolar disorder often exhibit pharmaco-resistance. Therefore, novel treatment methodologies are being proposed to treat the disease or provide symptomatic relief. VNS and DBS are two such techniques, both of which utilize neurostimulation to achieve therapeutic relief. However, it is necessary to establish the comparative efficacies of these methods in treating MDD in patients. Objective: To assess the relative difference in the efficacy of VNS versus DBS for treatment of Major Depressive Disorder and bipolar depression and to provide evidence for the superior technique. Methods: To compare the efficacy of VNS versus DBS for the reduction of depressive symptoms in patients who meet the criteria for a major depressive episode, we conducted a meta-analysis of studies of the subject. Twenty-six studies were selected, consisting of 1160 patients who were treated with either VNS (Mean age = 47.75 years old, mean duration of illness = 22.86 years) or DBS (Mean age = 33.11 years old, mean duration of illness = 9.9 years) treatment arms and analyzed them to determine the amount of improvement in mood. The primary outcome measures were evaluated in terms of change between pre-test and post-test scores over a period of three months, as measured by HDRS and MADRS rating scales. Results: A comparison of the summary effect size produced by VNS (HDRS = 1.247, MADRS = 1.110) to that produced by DBS (HDRS = 2.063, MADRS = 1.996) seems to demonstrate that DBS is the more effective treatment. The effect size for VNS was lower than that of DBS groups, indicating that DBS is more effective than VNS. The finding is corroborated by the tests of heterogeneity; while the VNS group of studies indicated a high level of heterogeneity Vs. DBS group indicated insignificant level of heterogeneity. Conclusion: Current meta-analysis demonstrates that Deep Brain Stimulation (DBS) is a better treatment modality for Major Depressive Disorder and Bipolar Depression than Vagus Nerve Stimulation (VNS). However, as the VNS and DBS groups differed concerning the clinical profiles of the patients (both in terms of age and regarding the duration of the illness. Research studies with larger, synchronous sample sizes and control groups are required for a meta-analysis to draw a steadfast conclusion.

BackgroundIt remains unclear if naltrexone combined with psychotherapy is superior to naltrexone alone in treating alcohol use disorders (AUD). The current meta-analysis examined the hypothesis that psychotherapy is a significant moderator that influences AUD-related outcomes and that naltrexone combined with psychotherapy is associated with significantly better AUD-related outcomes than naltrexone alone.MethodsA total of 30 studies (Nnaltrexone = 2317; Nplacebo = 2056) were included. Random effects model meta-analyses were carried out for each of the studied outcomes. Subsequently, the random effects model pooled estimates from studies with and without psychotherapy were compared using a Wald test. A mixed-effect model, incorporating psychotherapy as a moderator, was used to examine the impact of psychotherapy on treatment outcomes.ResultsNaltrexone had a significant treatment effect on abstinence relapse and Gamma-Glutamyl Transferase levels, but not cravings. The pooled estimates for studies with and without psychotherapy were not significantly different for any of the studied outcomes. Psychotherapy was not a significant moderator in the mixed effects models for any of the studied outcomes.ConclusionsNaltrexone treatment is efficacious in reducing alcohol consumption, but not reducing cravings. Adding psychotherapy on top naltrexone did not result in any significant additional benefit for AUD patients.

A complicated alcohol withdrawal syndrome (AWS) includes epileptic seizures and/or delirium tremens (DT). However, there is still a dearth of literature for catatonia as a consequence of AWS especially in terms of clinical reports. Secondly, the few noted reported cases in the literature were mainly of non-American populations. Hence, we present the case of a middle-aged woman with no past psychiatric history admitted for psychosis and altered sensorium with delayed catatonic features in the context of a history of alcohol use disorder. Ms. M., a 44-year-old African American female with no past psychiatric history but a past medical history of gastric bypass surgery, presented to the psychiatric emergency department via emergency medical service due to roaming the street because of acute onset of altered mental status and psychotic features. She had a Clinical Institute Withdrawal Assessment of Alcohol Scale (CIWA) score of 33 following last alcohol use a few hours prior to presentation. While on the inpatient unit, the patient had an isolated episode of catatonic stupor despite being administered lorazepam 2mg every four hours as needed. Supportive medical staff should also be aware of catatonia as a rare manifestation of alcohol withdrawal. A persistent, thorough medical workup and evidence-based "investigative" history gathering can help elucidate the source of the presenting symptom in this patient population.

gender, age, and even facial expressions that is entirely separate from their original, unique persona. In some instances, an aura has been reported to supersede an alter being pulled from the unconscious to the subconscious. 7 The memories that many of the alters elicit are often entirely different from what the original persona has experienced, so much so that it cannot yet be explained by dementia or any other medical condition. 8 DID and other psychiatric disorders such as schizophrenia have some diagnostic features in common that can often make it challenging to differentiate these comparable conditions. Schizophrenia and DID may both exhibit auditory hallucinations, negative symptoms, some degree of cortical atrophy, and are both often associated with comorbid substance abuse. In current literature, however, clinicians have found some differentiating ideas and evidence that suggest a number of key differences between these disorders. Of note is the finding that the auditory hallucination manifested in up to 80% of patients with DID often manifest at an early age, are experienced as internal in origin, and rarely responds to antipsychotic medication. 8 Conversely, patients with schizophrenia experience hallucinations as environmental, third person, external, or internal in origin and this is usually associated with negative symptoms such as flat affect, catatonia, associability, and anhedonia. Schizophrenia has also shown better response profiles to antipsychotic medication compared to DID. 9 Some patients diagnosed with schizophrenia have also reported higher delusion scores than DID. It is important to note that one of the major diagnostic differences between these disorders is the presence of amnesia or significant disparities in time. Some theories have suggested that DID patients engage in an autohypnotic phenomenon, as a defense mechanism, and have endured significant childhood trauma that is hypothesized to potentiate the onset of the disorder. 8 In contrast, childhood trauma does not seem to be directly related to the onset of schizophrenia and other psychiatric conditions. There is evidence that up to 90% of patients with DID also meet the diagnostic criteria for PTSD. This comorbidity is important to note when examining brain imaging. In addition, other conditions such as borderline personality disorder, bipolar disorder, anxiety disorders, dysfunctional early childhood attachment styles, and childhood neglect have all been implicated or associated with DID in literature. 10 Risk factors for DID include but are not limited to chronic childhood trauma, young age (onset from 28-34 years old), suicidal ideation with previous attempts, monozygotic twins, promiscuity, gender dysphoria, substance abuse, comorbid psychiatric conditions, and depersonalization. 8,10 Many psychiatric disorders are associated with significant changes in brain morphology at gross and molecular levels. The aim of our study is to explore the possibility of using volumetric analysis of specific brain regions to support the diagno...

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