Donepezil-induced bradycardia in a schizophrenic patient with comorbid neurocognitive disorder: a case report and review of the literature.

BACKGROUND: Trials of cholinergic and glutamatergic agents have improved cognition and memory for the geriatric schizophrenic population. Donepezil is an acetylcholinesterase inhibitor that improves cognition by preventing postsynaptic degradation of hippocampal acetylcholine in patients with mild-to-moderate dementia. Donepezil has been attributed to some adverse effects, especially gastrointestinal symptoms. However, cardiovascular adverse effects are not common as there remains a dearth of literature regarding donepezil-induced bradycardia. CASE REPORT: Hence, we present the case of a 70-year-old Hispanic female with past psychiatry history of schizophrenia who developed bradycardia and syncope following the commencement of low-dose donepezil in the inpatient unit and subsequent resolution with cessation. She had no prior cardiovascular symptoms or diagnosis. DISCUSSION: Considering there is no baseline cardiac monitoring requirement guideline for patients on Donepezil treatment, pre-assessment electrocardiogram is advised before the commencement of acetylcholinesterase inhibitors. Finally, routine monitoring of vital signs for at least the first 72 hours following the start of donepezil might be good proactive practice for all psychiatrists. Extending this practice to inpatient and outpatient service settings will be worthwhile.

Pseudobulbar Affect Mimicking Depression: A Case Report.

Pseudobulbar affect (PBA) is a neurological condition that is associated with short periods of involuntary, sudden, and inappropriate emotions such as crying or laughing, which are mood incongruent. An accurate estimate of the prevalence of PBA is hard to obtain due to varying diagnostic criteria and variable patient populations. The cause of PBA is not known, but current evidence suggests dual etiology. A neural circuit dysfunction and an abnormality of neurotransmitters that regulate motor expression of emotions. PBA can easily be mistaken for a depressive disorder due to the overlap of symptoms. Moreover, patients with PBA may have a major depressive disorder (MDD) or other depressive disorders. Therefore, it is essential to recognize and treat PBA as well as possible psychiatric comorbidities. We present a case report of a 59-year-old man with no past psychiatric history who presents with paroxysms of episodes of crying for the past one year. He endorsed feelings of hopelessness and poor concentration. MRI of the brain revealed bilateral basal ganglia and a thalamic infarct. The patient was treated with citalopram. This case describes a unique presentation of pseudobulbar affect mimicking depression.

Traumatic brain Injury related schizophrenia in individuals without family history: A case series.

Traumatic brain injury (TBI) related mental disorder has been hypothesized in the literature before 1969 as the etiology of schizophrenia. TBI has been described as a complex of multiple genetic factors and interacting non-genetic factor influence. Most research on non-genetic factors has focused on the period from conception through childhood. Thus far, there is no evidence suggestive of schizophrenic features for individuals without family history of mental health disorder following TBI in adulthood. Hence, we present these case series of three different TBI related schizophrenia with no past psychiatric history nor positive family psychiatric background. Though there are scientific reports suggesting association between TBI and schizophrenia, most of the links are either based on pre-teen exposure to TBI or positive family history of mental illness. Discussed in line of current literature, this case series adds to the body of evidence on adult TBI related schizophrenia in individuals with no family history of mental health disorder.

Risperidone-Induced Neutropenia in a Schizophrenic Patient: A Case Report and Literature Review.

Neutropenia is an adverse effect of various pharmacological therapies, including antipsychotics. Among the second-generation antipsychotic (SGA) medications, clozapine is most notable for neutropenic adverse effect. Risperidone, another SGA drug, is linked mainly with metabolic adverse effects, but rarely, blood dyscrasia adverse reactions have been reported. Hence, we report the case of a 56-year-old African American woman who developed severe neutropenia following two weeks of oral risperidone treatment. Her neutrophil levels returned to normal limits following discontinuation of risperidone and switching to haloperidol.

Prevalence and Trends of Opioid Use in Patients With Depression in the United States.

Background Depression and prescription opioid use have a bi-directional relationship. Depression commonly co-occurs with chronic noncancer pain and is known to be associated with opioid use. Studies have found an increased risk of depression only in patients with opioid dependence. Other studies have found an increased risk of opioid misuse in depressed patients. In addition, chronic pain conditions can lead to depression without the use of opioids. Methods We used the National Health and Nutrition Examination Survey (NHANES) data collected over seven survey cycles spanning 14 years: 2005/2006-2017/2018. Included in our study were participants ≥18 years who completed the patient health (PHQ-9) questionnaire. Persons with documented use of opioids were considered to have chronic use of opioids. Relevant data files were merged, and analytical weights computed in keeping with the survey analytical guidelines. Prevalence measures are reported as proportions. Associations were assessed using the Chi-square test. Binary logistic regression was used to assess the trend in the prevalence of opioid use. We used STATA-16 for data analysis and p-values <0.05 were considered statistically significant. Results A total of 36,459 participants met the inclusion criteria. The prevalence of depression was 7.7% (95% CI: 7.3-8.2). The prevalence of any narcotic use was 6.0%. Among depressed individuals, Blacks: OR 0.71 (95% CI: 0.54-0.93) and Hispanics: OR 0.48 (95% CI: 0.34-0.67) were less likely to be on narcotics compared to non-Hispanic Whites. The prevalence of opioid use was stable over the first 12 years, followed by a significant drop in the last two years. Conclusion Beyond the risk for opioid misuse, and opioid use disorder, depression should also be considered when prescribing opioids. It is therefore important to implement a training to screen for depression in patients receiving opioids for pain management.

Opioid-Induced Psychosis in a Patient With Sickle Cell Disease.

Sickle cell disease (SCD) is a common inherited hemoglobin disorder in which people have atypical hemoglobin, known as hemoglobin S. It is highly prevalent in non-Hispanic Blacks and people of Arab descent. It causes a distortion of the shape of red blood cells, leading to occlusion of blood vessels and thus tissue hypoxia and injury. The resultant infarction/reperfusion, in turn, causes fatigue and pain. Patients with SCD require constant analgesic medications for pain management. In the general population, opioids are amongst the most prescribed medications for pain management and the trend has been gradually growing during the past two decades. Side effects commonly associated with opioids are gastrointestinal and central nervous system-related, with up to 80% of patients experiencing at least one adverse effect. We report the case of a 36-year-old male patient who has a history of cannabis use and no prior psychiatric history, who developed acute psychosis while receiving a high dose of hydromorphone for sickle cell pain crisis. This case contributes to the growing literature about opioid-induced psychosis and also explores psychosis in sickle cell disease. Understanding the pharmacology and potential side effects of opioids is critical given the increasing number of patients using prescribed and illicit opioids.

Substance Use Patterns and Schizophrenia Spectrum Disorders: A Retrospective Study of Inpatients at a Community Teaching Hospital.

BACKGROUND: Schizophrenia is one of the chronic mental illnesses, characterized by delusions, hallucinations, disorganized speech, grossly disorganized or catatonic behavior, and cognitive decline. It frequently leads to a lifetime of impairment and disability that span the entire lifespan of the patients. Several epidemiologic studies have shown that schizophrenia spectrum disorders (SSDs) contribute significantly to years lived with disability. Additionally, substance use disorders have been reported to co-occur commonly among patients with SSD (a comorbidity also known as dual diagnosis), attracting notable attention over the past few decades. This dual diagnosis often requires treatment modifications to ensure for best patient outcomes. METHODS: This study was a retrospective review of the electronic medical charts. The patients included in the study were discharged from the psychiatric unit of our hospital between July 1, 2017 and October 31, 2017. Patients were included in the study using three inclusion criteria: 1) age ≥18 years; 2) had a diagnosis of SSD at discharge; and 3) had urine drug screen performed. Sociodemographic and clinical variables were abstracted. Univariate analysis and summary statistics were performed. Bivariate and multivariate analyses were done via logistic regression models to determine the odds ratios (ORs) and corresponding P values (P). RESULTS: A total of 365 (52.2%) patients had a diagnosis of SSD at discharge. Of these, 349 met the inclusion criteria. The age ranged from 19 to 79 years, with a mean age of 42.2 years, and 76.8% of the patients used substances. Out of the 269 patients who used substances, 199 (74%) used two or more substances. Tobacco use was most prevalent (62.3%), followed by cannabis use (41.5%), alcohol use (40.2%), and cocaine use (27.4%). Patients who reported using tobacco, were more likely to have comorbid alcohol use (OR = 7.24; P = 0.000), cannabis use (OR = 2.80; P = 0.000), cocaine use (OR = 5.00; P = 0.000), and synthetic cannabis (K2) use (OR = 4.62; P = 0.048). Results of the multivariate analyses supported the other findings. CONCLUSIONS: Our study found a high association between schizophrenia spectrum disorders and substance use, with three out of four patients with SSD using a substance. This prevalence is higher than previously reported by other studies. Among those who use substances, about three in four use multiple substances. These point to some interaction between the substances and appear to be heavily influenced by significant social determinants of mental health that continue to plague the community. It is important to establish if a patient with schizophrenia has a comorbid substance use disorder, because addressing both generally leads to better patient outcomes.