جستجوی مقالات مرتبط با کلیدواژه « Hallucination » در نشریات گروه « پزشکی »

Archaeologists, historians, and physicians have frequently examined historical pieces including images or sculptures (visual arts) and found evidence that allow them to make interpretations under certain assumptions. Iconography examines archaeological evidence and provides clues and symbols for more information about the past.This manuscript aims to highlight "iconography" as another source for studying the history of health literacy. We hope to persuade professional readers of health and medicine to begin researching and reporting the rich iconographic figures, particularly in Iran, attributed to health and medicine across the country.

We have evaluated a pre-Columbian ceramic mask from the Olmec civilization (1500-400 BCE, south-central Mexico) discovered in 1955 by the famous archaeologist Matthew Williams Stirling and is kept at the Museo Internazionale delle Ceramiche in Faenza, Italy.

This mask consists of two halves (earth jaguar and divine human). It looks like the skull that is transforming from an anxious jaguar earthly creature into a perfect and holy figure of the human face. First, this hybrid deity mask manifests auditory and visual hallucinations from a medical and psychological perspective. The jaguar's ear is small with no hole. However, its human ear is shaped like a horn with a large hole which could symbolize a relatively more remarkable hearing ability. The jaguar's eye is just an empty and presumably blind hole. Yet, the celestial eye is anatomically intact, suggesting the ability to see beyond the eyeless earth creature.Additionally, the human (holy) half of the figurine has a skull and nose that resembles the cap and stem of a mushroom. Enhanced visual and auditory abilities, today classified as hallucinations, provide evidence of psychoactive chemicals such as the effects of magic mushrooms containig psilocybin.

The pre-Columbian Olmec civilization ichnographically documented magic mushrooms' medical and psychological effects long before any medical texts described their manifestation.

Following the outbreak of COVID-19 disease, which is caused by the coronavirus, there were reports of neurological complications, indicating that virus infection may have risks involving the nervous system. Stroke, encephalopathy, moderate to severe headaches, anosmia and dysgeusia, hallucination, and depression were the most neurological complications reported. The most important neurological complication of COVID-19 is anosmia, which is caused by the infection of the olfactory support cells. Hallucination and depression have been observed in those admitted to the intensive care unit, which is primarily related to general inflammatory reactions. Although brain autopsies of people who have died because of COVID-19 have shown that the virus can be detected in brain tissue. Studies indicate that viral infection has only been detected in the vascular part of the blood-brain-barrier. Perhaps the most critical finding of coronavirus infection in the brain is the activation of astrocytes and microglia in patients with COVID-19, which dilates the cerebral arteries in the brainstem, allows killer T cells to enter brain tissue, and causes cytotoxic effects in this part of the brain. This review focused on the neurological complications associated with COVID-19 and the possible mechanisms underlying these complications.

Following surgery, patients frequently suffer from shivering, and this can lead to postoperative complications and discomfort.

This study aimed to compare the effect of ketamine on patients’ shivering following an elective abdominal hysterectomy. Patients were given either Ketamine (0.25 mg or 0.5 mg/kg) or a placebo. The study and surgery took place in a subspecialty University Hospital for Gynecology and Obstetrics.

This study was an interventional, randomized, controlled clinical trial. Ninety-six women who underwent elective abdominal hysterectomy were randomly assigned to three groups. Ketamine was administered to all participants 20 min prior to the end of surgery. The first group received 0.25 mg/kg of intravenous ketamine. The second group received 0.5 mg/kg intravenous ketamine. The third group received a placebo of intravenous saline. Postoperative shivering, sedation grade, hallucination, nausea, vomiting, and nystagmus were measured for each patient up to 30 minutes.

The study showed that patients suffered from less shivering in the two groups that received ketamine. The reduced shivering was seen 5, 10, and 20 min following surgery in the two groups that were given two doses of 0.25 and 0.5 mg/kg ketamine compared to the control group (P value < 0.05). There was a significant difference between patients receiving normal saline and those having 0.25 and 0.5 mg/kg of ketamine in the rate of sedation grade, nausea, vomiting, and nystagmus (P value < 0.05). The main differences in patients receiving ketamine were the sedation grade at zero time and postoperative hallucination experienced by those patients who received 0.5 mg/kg of ketamine.

Ketamine reduced shivering in all patients following elective abdominal hysterectomy. This was regardless of dose. Patients were less likely to suffer from hallucinations and sedation grade with a lower dose of ketamine (0.25 mg/kg compared to 0.50 mg/kg).

Third generation quinolones are extensively used to treat a variety of common bacterial infections. Due to their extensive use in clinical practice, an increase in neuropsychiatric events has been reported. We report the case of psychotic symptoms occurs after three doses of moxifloxacin in a healthy adult male with no underlying risk factors. After the discontinuation of moxifloxacin treatment, there was a complete resolution of patient’s symptoms. The case draws attention to a rare side effect of a commonly use drug and alert the clinicians to be cautious in those patients that have a baseline risk factors which makes the patient more susceptible to such adverse drug effect.

Hallucinations in children have not typically been viewed as synonymous with psychosis. They can even be part of normal development or can be associated with other psychiatric disorders. These hallucinations are sometimes referred to as non-psychotic hallucinations. An association between childhood trauma and psychosis has been demonstrated several times.
A six-year-old child was analyzed as a follow-up study over a period of three years by a child and adolescent psychiatrist. During the study, he was referred to the psychiatric hospital three times for aggression and hallucinations. Despite his several admissions to the psychiatric hospital and receipt of vigorous treatment, he maintained clear and sustained hallucinations that never diminished. At the last outpatient follow-up, his mother revealed physical abuse by his father. Laboratory tests, magnetic resonance imaging, and electroencephalography results were unremarkable.
Based on our experience and knowledge, this child, who has had three years of sustained and non-psychotic hallucinations, is a rare case. In addition, this case proves that the diagnostic complexity of hallucinations in children of preschool age requires a high level of precision and thoroughness. That is, these hallucinations may be associated with adversities experienced by the child. This article discusses how trauma may manifest in characteristic symptoms of psychosis, particularly hallucinations.

Isolated visual hallucinations is considered as the Charles Bonnet syndrome. Ophtalmic or brain organic disease is a necessary or exclusionary criterion for diagnosis. In previous reports, it reported only solitary hallucination. In this report, we found multiple hallucinations.
In this article we report a 64 year-old blind man with renal failure under hemodialysis who suffered from the Charles bonnet syndrome. His left eye was blind about 6 months ago, He fell some flies attack him and lying on his face. He believed that insects crawling on his face (Tactile hallucination). It was ruled out delirium, psychotic and mood disorders.
Not only visual hallucination, but also the tactile and gustatory hallucination can find about Charles Bonnet syndrome.

Many conditions can mimic psychiatric symptoms. Amongst them, intracranial mass and space occupying lesions have a significant importance. Aggression and hallucination are seen in association with a basal frontal lesion, and may mimic psychotic syndromes. A 37-year-old man with no previous mental illness presented with a month history of headache, blurred vision, diplopia, aggression, loss of interest, fatigue, insomnia, and depressed mood. He was suffering from daily auditory hallucination which described as musical hallucination lasting about an hour per day. The headache was tension-type which appeared swinging, two times per week lasting 30 minutes. After auditory hallucination, the patient disclosed nausea, vomiting, and transient loss of consciousness. He referred from a neurologist, because, conventional therapy for the patient had not response. There were no other neurological symptoms or deficits. The results of neurologic examination including evaluation of the cranial nerves as well as head and neck examination were normal; But, psychiatric symptoms developed. Therefore, he was admitted to the psychiatric ward. The patient was diagnosed with major depressive disorder (MDD) with psychotic feature by Diagnostic and Statistical Manual of Mental Disorders (DSM) IV criteria and received psychiatric treatment. He started on antipsychotic agent (olanzapine 5 mg tablet/bid), antidepressant (sertraline 50 mg tablet/qhs) and valproate sodium 200 mg tablet/bid for treatment of aggression and headaches. After five days of admission, primary symptoms of headache and auditory hallucination were better but diplopia and blurred vision were still present. Ophthalmology examination revealed. The pupils were round, isochoric, and normoreactive to light and accommodation, and there was no sign of a relative afferent pupillary defect. Ophthalmoscopy showed a papilledema in both eyes. In order to rule out the intracranial pressure and their causes, neuroimaging was requested. An emergent noncontrast-enhanced computed tomography (CT) image of the head revealed a hyperdense mass in midfrontal convexity. Magnetic resonance imaging of the brain and orbits with and without intravenous gadolinium enhancement further delineated the CT findings and highlighted a large avidly enhancing midline mass within the frontal region measuring approximately 48×50×42 mm in axial dimension, consistent with a meningioma. The patient discharged from psychiatric ward with necessary advices and was admitted to the neurosurgery ward for further evaluation. A first psychosis episode is a clinical condition with principal indication for cerebral CT-scan. Meningioma is a common intracranial tumor with a variety of histomorphologic growth patterns, which are usually easily recognized. The three most common symptoms are headaches, mental status changes, and paresis. Aggression and hallucination are seen in association with a basal frontal lesion and may mimic psychotic syndromes like hypomania and schizophrenia. A first psychosis episode is a clinical condition with principal indication for cerebral CT-scan.

Leukotriene receptor antagonists(montelukast) have been used for many years in the treatment of asthma both acute and chronic stages. They are accepted commonly as safe but mostly possible side effects are ignored. However, montelukast also could lead to important adverse reactions like hallucinations. In literature only 2 reports have been found about hallucinations with it. One is a study which reports 3 patients from 48 children and the other is a 29 year-old case report. In our case, psychiatric adverse reactions of montelukast,especially hallucinations are reported similarly. We are presenting a child who had visual hallucinations after starting to use montekulast and after stopping the medicine these complaints disappeared in 48 hours. Although it is a safe drug, it should not be forgotten that it has psychiatric side effects which may be missed easily especially in children.