RESUMEN
Phonemic paraphasia, a common characteristic of conduction aphasia, has traditionally been attributed to phonological representation dysfunction. An alternative hypothesis posits that phonemic paraphasia arises from difficulty converting phonemes into their corresponding articulatory maneuvers. However, detailed case studies supporting this theory have been lacking. In this report, we present the case of a 61-year-old right-handed man with right temporo-parietal infarction who exhibited crossed aphasia characterized by typical conduction aphasia symptoms (eg, relatively fluent speech with intact comprehension, frequent phonemic paraphasia, and pronounced difficulties in oral repetition) in the absence of distorted articulation, syllable segmentation, and prosody impairment. Despite the frequent occurrence of phonemic paraphasia and articulatory challenges, our patient's phonological representations remained relatively intact. His phonemic paraphasia was often self-corrected to produce correct responses, a feature known as conduit d'approche. During the oral repetition of individual mora (ie, the smallest unit of speech in Japanese), we observed that the patient consistently traced the corresponding Hiragana phonetic symbol accurately, despite his difficulties in articulation. We substantiated this phenomenon through objective assessment and posit that it resulted from an unusual separation of language functions in crossed aphasia-specifically, a disconnection between phonological representations in the right temporo-parietal cortex and speech articulation engrams in the left hemisphere. In this case of conduction aphasia, articulatory-based phonemic paraphasia may be viewed as an inability to convert phonemes into the appropriate articulatory maneuvers rather than as phonological representation dysfunction or apraxia of speech.
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Afasia de Conducción , Humanos , Masculino , Persona de Mediana Edad , Lóbulo Temporal/fisiopatología , Lóbulo Temporal/diagnóstico por imagen , Fonética , Lóbulo Parietal/fisiopatología , Habla/fisiologíaRESUMEN
BACKGROUND: Malignant hyperthermia is a potentially lethal condition triggered by specific anesthetic drugs, especially a depolarizing muscle relaxant of succinylcholine (Suxamethonium). Despite the frequent use of succinylcholine with electroconvulsive therapy (ECT), there has been no reported case of potentially lethal malignant hyperthermia following ECT. In addition, the time interval between the administration of succinylcholine and the onset of malignant hyperthermia has not been outlined in the context of ECT. CASE PRESENTATION: We present the case of a 79-year-old woman suffering from severe depression, who experienced severe malignant hyperthermia due to succinylcholine administration during an ECT session. She presented with a high fever of 40.2 °C, tachycardia of 140/min, hypertension with a blood pressure exceeding 200 mmHg, significant muscle rigidity, and impaired consciousness. These symptoms emerged two hours after ECT, which occurred in a psychiatric ward rather than an operating room, and reached their peak in less than 24 h. She was given 60 mg of dantrolene, which quickly reduced the muscular rigidity. Subsequently, she received two additional doses of 20 mg and 60 mg of dantrolene, which brought her fever down to 36.2 °C and completely eased her muscle rigidity within two days after ECT. CONCLUSIONS: This is the first reported case of potentially lethal malignant hyperthermia after ECT. In addition, it highlights the delayed onset of malignant hyperthermia following an ECT procedure, emphasizing the necessity for psychiatrists to recognize its onset even after the treatment. In the light of potentially lethal consequences of malignant hyperthermia, it is critically important for psychiatrists to closely monitor both intraoperative and postoperative patient's vital signs and characteristic physical presentations, promptly identify any symptomatic emergence, and treat it immediately with dantrolene.
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Terapia Electroconvulsiva , Hipertermia Maligna , Fármacos Neuromusculares Despolarizantes , Succinilcolina , Anciano , Femenino , Humanos , Dantroleno/uso terapéutico , Dantroleno/efectos adversos , Terapia Electroconvulsiva/efectos adversos , Terapia Electroconvulsiva/métodos , Hipertermia Maligna/etiología , Fármacos Neuromusculares Despolarizantes/efectos adversos , Succinilcolina/efectos adversosRESUMEN
The subcategories of attention function have various classification methods. In this section, we have listed subcategories that are easily applicable to neuropsychology, namely selective, sustained, spatial, and divided attention, attentional inhibition, and attention shifting. Among them, selective attention is a function excluding unnecessary information from a myriad of data while selecting essential information. Sustained attention, in contrast, is a function directing attention to information over a certain period and maintaining it during task execution, are the two basic subfunctions in attention. Attentional inhibition, divided attention, and attention shifting are regarded as attentional control functions or executive control of attention, which are closely related with working memory and executive function. However, there is also an overlap observed among these subfunctions. Since our cognitive activities are intertwined with attention functions, it is challenging to purely extract specific attention functions.
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Atención , Función Ejecutiva , Atención/fisiología , Humanos , Función Ejecutiva/fisiología , Pruebas Neuropsicológicas , Memoria a Corto Plazo/fisiología , Cognición/fisiologíaRESUMEN
BACKGROUND: Although urinary incontinence in stroke survivors can substantially impact the patient's quality of life, the underlying neuropsychological mechanisms and its neural basis have not been adequately investigated. Therefore, we investigated this topic via neuropsychological assessment and neuroimaging in a cross-sectional study. METHODS: We recruited 71 individuals with cerebrovascular disease. The relationship between urinary incontinence and neuropsychological indices was investigated using simple linear regression analysis or Mann-Whitney U test, along with other explanatory variables, e.g., severity of overactive bladder. Variables with a p-value of <0.1 in the simple regression analysis were entered in the final multiple linear regression model to control for potential confounding factors. To carry out an in-depth examination of the neuroanatomical substrate for urinary incontinence, voxel-based lesion-behavior mapping was performed using MRIcron software. RESULTS: Behavioral control deficits and severity of overactive bladder were closely related to severity of urinary incontinence. The voxel-based lesion-behavior mapping suggests a potential role for ventromedial prefrontal cortex lesioning in the severity of urinary incontinence, although this association is not statistically significant. CONCLUSIONS: Post-stroke urinary incontinence is closely related to two factors: neurogenic overactive bladder, a physiological disinhibition of micturition reflex, and cognitive dysfunction, characterized by behavior control deficits.
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Accidente Cerebrovascular , Vejiga Urinaria Hiperactiva , Incontinencia Urinaria , Humanos , Femenino , Vejiga Urinaria Hiperactiva/etiología , Vejiga Urinaria Hiperactiva/fisiopatología , Masculino , Incontinencia Urinaria/etiología , Incontinencia Urinaria/fisiopatología , Persona de Mediana Edad , Anciano , Accidente Cerebrovascular/complicaciones , Accidente Cerebrovascular/fisiopatología , Estudios Transversales , Pruebas Neuropsicológicas , Imagen por Resonancia Magnética , Índice de Severidad de la Enfermedad , AdultoRESUMEN
Individuals with acquired brain injury have reported subjective complaints of depth perception deficits, but few have undergone objective assessments to confirm these deficits. As a result, the literature currently lacks reports detailing the correlation between subjective depth perception deficits and objective stereoscopic vision deficits in individuals with acquired brain injury, particularly those cases that are characterized by a clearly defined lesion. To investigate this relationship, we recruited three individuals with acquired brain injury who experienced depth perception deficits and related difficulties in their daily lives. We had them take neurologic, ophthalmological, and neuropsychological examinations. We also had them take two types of stereoscopic vision tests: a Howard-Dolman-type stereoscopic vision test and the Topcon New Objective Stereo Test. Then, we compared the results with those of two control groups: a group with damage to the right hemisphere of the brain and a group of healthy controls. Performance on the two stereoscopic vision tests was severely impaired in the three patients. One of the patients also presented with cerebral diplopia. We identified the potential neural basis of these deficits in the cuneus and the posterior section of the superior parietal lobule, which play a role in vergence fusion and are located in the caudal region of the dorso-dorsal visual pathway, which is known to be crucial not only for visual spatial perception, but also for reaching, grasping, and making hand postures in the further course of that pathway.
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Lesiones Encefálicas , Percepción de Profundidad , Trastornos de la Percepción , Humanos , Lesiones Encefálicas/complicaciones , Lesiones Encefálicas/psicología , Lesiones Encefálicas/fisiopatología , Percepción de Profundidad/fisiología , Pruebas Neuropsicológicas/estadística & datos numéricos , Trastornos de la Percepción/etiología , Trastornos de la Percepción/fisiopatología , Trastornos de la Visión/psicología , Trastornos de la Visión/etiologíaRESUMEN
AIM: Live two-way video, easily accessible from home via smartphones and other devices, is becoming a new way of providing psychiatric treatment. However, lack of evidence for real-world clinical setting effectiveness hampers its approval by medical insurance in some countries. Here, we conducted the first large-scale pragmatic, randomized controlled trial to determine the effectiveness of long-term treatment for multiple psychiatric disorders via two-way video using smartphones and other devices, which are currently the primary means of telecommunication. METHODS: This randomized controlled trial compared two-way video versus face-to-face treatment for depressive disorder, anxiety disorder, and obsessive-compulsive disorder in the subacute/maintenance phase during a 24-week period. Adult patients with the above-mentioned disorders were allocated to either a two-way video group (≥50% video sessions) or a face-to-face group (100% in-person sessions) and received standard treatment covered by public medical insurance. The primary outcome was the 36-Item Short-Form Health Survey Mental Component Summary (SF-36 MCS) score. Secondary outcomes included all-cause discontinuation, working alliance, adverse events, and the severity rating scales for each disorder. RESULTS: A total of 199 patients participated in this study. After 24 weeks of treatment, two-way video treatment was found to be noninferior to face-to-face treatment regarding SF-36 MCS score (48.50 vs 46.68, respectively; p < 0.001). There were no significant differences between the groups regarding most secondary end points, including all-cause discontinuation, treatment efficacy, and satisfaction. CONCLUSION: Two-way video treatment using smartphones and other devices, was noninferior to face-to-face treatment in real-world clinical settings. Modern telemedicine, easily accessible from home, can be used as a form of health care.
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Depresión , Trastorno Obsesivo Compulsivo , Adulto , Humanos , Trastornos de Ansiedad/terapia , Trastornos de Ansiedad/psicología , Trastorno Obsesivo Compulsivo/terapia , Trastorno Obsesivo Compulsivo/psicología , Ansiedad , Psicoterapia , Resultado del TratamientoRESUMEN
Diagnosing neurosyphilis can be challenging and it may be misdiagnosed as behavior variant frontotemporal dementia, given its affinity for the frontal and temporal lobes. Here we present a model case, who, in his 40âs, was initially misdiagnosed with behavioral variant frontotemporal dementia based on extreme self-neglect and disinhibition over six months and frontal lobe atrophy. He was later diagnosed as neurosyphilis with positive syphilis tests in his cerebrospinal fluid. He underwent penicillin treatment and fully recovered. Relatively rapid cognitive decline, particularly if young, should prompt physicians to consider neurosyphilis as a treatable dementia, which could completely change a patient's life.
RESUMEN
Individuals with childhood apraxia of speech often exhibit greater difficulty with expressive language than with receptive language. As a result, they may benefit from alternative modes of communication. Here, we present a patient with childhood apraxia of speech who used pointing as a means of communication at age 2 » years and self-made gestures at age 3½, when he had severe difficulties speaking in spite of probable normal comprehension abilities. His original gestures included not only word-level expressions, but also sentence-length ones. For example, when expressing "I am going to bed," he pointed his index finger at himself (meaning I ) and then put both his hands together near his ear ( sleep ). When trying to convey the meaning of "I enjoyed the meal and am leaving," he covered his mouth with his right hand ( delicious ), then joined both of his hands in front of himself ( finish ) and finally waved his hands ( goodbye ). These original gestures and pointing peaked at the age of 4 and then subsided and completely disappeared by the age of 7, when he was able to make himself understood to some extent with spoken words. The present case demonstrates an adaptive strategy for communication that might be an inherent competence for human beings.
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Apraxias , Habla , Masculino , Humanos , Niño , Adulto Joven , Adulto , Gestos , Lenguaje , ManoRESUMEN
Although shadowing behavior- when one individual closely follows another- is routinely documented among patients with dementia, its mechanisms have yet to be elucidated. In particular, there have been no detailed descriptions of patients with shadowing behavior. To propose its potential backgrounds, we describe a patient with posterior cortical atrophy who exhibited prominent shadowing behavior. He also experienced severe difficulties recognizing external stimuli, including visuospatial dysfunction, several types of agnosia, difficulties in verbal comprehension, disorientation, and its associated depression. This shadowing behavior may be adaptive relative to his extreme difficulty with recognizing the world around him.
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Agnosia , Enfermedad de Alzheimer , Humanos , Masculino , Enfermedad de Alzheimer/complicaciones , Agnosia/etiología , Comprensión , Atrofia/complicacionesRESUMEN
OBJECTIVE: Although pneumonia is the leading cause of death among patients with dementia, the specific underlying causes remain unclear. In particular, the potential connection between pneumonia risk and dementia-related daily living difficulties, such as oral hygiene practice and mobility impairment, and the use of physical restraint as a management practice, has not been extensively studied. METHODS: In our retrospective study, we included 454 admissions corresponding to 336 individual patients with dementia who were admitted to a neuropsychiatric unit due to behavioral and psychological symptoms. The admissions were divided into two groups: those who developed pneumonia while hospitalized (n=62) and those who did not (n=392). We investigated differences between the two groups in terms of dementia etiology, dementia severity, physical conditions, medical complications, medication, dementia-related difficulties in daily living, and physical restraint. To control potential confounding variables, we used mixed effects logistic regression analysis to identify risk factors for pneumonia in this cohort. RESULTS: Our study found that the development of pneumonia in patients with dementia was associated with poor oral hygiene, dysphagia, and loss of consciousness. Physical restraint and mobility impairment showed a weaker, nonsignificant association with the development of pneumonia. CONCLUSIONS: Our findings suggest that pneumonia in this population may be caused by two primary factors: increased pathogenic microorganisms in the oral cavity due to poor hygiene, and an inability to clear aspirated contents due to dysphagia and loss of consciousness. Further investigation is needed to clarify the relationship between physical restraint, mobility impairment, and pneumonia in this population.
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Trastornos de Deglución , Demencia , Neumonía , Humanos , Higiene Bucal/efectos adversos , Estudios Retrospectivos , Trastornos de Deglución/etiología , Trastornos de Deglución/complicaciones , Neumonía/complicaciones , Neumonía/epidemiología , Demencia/etiología , Demencia/complicaciones , Inconsciencia/complicaciones , Factores de RiesgoRESUMEN
A selective impairment for making hand postures that are required to use specific tools has rarely been reported in individuals with acquired brain injury, and such an impairment has not been documented at all in individuals with degenerative disorders. We describe an individual with posterior cortical atrophy and probable corticobasal syndrome who was unable to use tools because of an inability to make the proper hand posture required for each tool. This individual was, however, able to use the tools properly once her hand postures were corrected, and her ability to manipulate the tools (ie, timing, arm posture, and amplitude) was intact. Also, she had no difficulty with a test of her manipulation knowledge. Areas of hypoperfusion observed by single-photon emission computerized tomography included the anterior intraparietal sulcus in the left parietal lobe, which is an area that has been proposed to control hand postures. This selective impairment might be explained by the reasoning-based hypothesis for apraxia, which attributes hand posture errors in the absence of manipulation errors to dysfunction in one of the three independent pathways that subserve tool use, rather than the manipulation-based hypothesis for apraxia, which attributes hand posture errors to impaired manipulation knowledge. This is the first case with a degenerative disorder that revealed a selective impairment for making hand postures for tool use, which might be explained mainly by apraxia of hand postures along with visuospatial dysfunction (simultanagnosia) and/or sensory disturbance.
Asunto(s)
Apraxias , Degeneración Corticobasal , Enfermedades Neurodegenerativas , Femenino , Humanos , Apraxias/complicaciones , Apraxias/diagnóstico por imagen , Postura , Enfermedades Neurodegenerativas/complicaciones , Enfermedades Neurodegenerativas/diagnóstico por imagen , Atrofia/complicacionesRESUMEN
Background: Dementia that advances subacutely without accompanying neurological symptoms can often be misdiagnosed as a psychiatric condition. Leptomeningeal metastasis (LM), caused by the spread of malignant cells to the leptomeninges and the subarachnoid space, is a relatively unfamiliar condition to psychiatrists in this context. The diagnosis of LM remains challenging due to the scarcity of diagnostic tools possessing high sensitivity and specificity. Case Presentation: We present the clinical presentation of a male in his seventies with LM secondary to gastric ring cell carcinoma. The patient exhibited an acute confusional state, visual hallucinations, irritability, and cognitive impairments over a 3-week period. Initially, the patient was misdiagnosed with several conditions, including alcohol withdrawal syndrome, psychosis, and delirium associated with dementia, as there were no noteworthy findings on neurological examination or the head magnetic resonance imaging (MRI). Given the rapidly progressive cognitive decline, we maintained vigilance for potential neurological conditions, and a repeat investigation using head MRI and cerebrospinal fluid analysis led to the diagnosis of LM. Conclusion: This critical case report underscores the rarity of psychiatric-onset LM originating from gastric cancer and highlights the importance of comprehensive neurological evaluations.
RESUMEN
Background: Some patients are reported to develop depression immediately after COVID-19 infection. Typically, hospitalization is arranged a week to 10 days after symptom onset to avoid outbreak in the psychiatric ward when infectivity is almost eliminated. However, in patients on immunosuppressive drugs, infection is known to persist beyond the 10th day after testing positive with a polymerase chain reaction (PCR) test. Case Presentation: We present a patient with follicular lymphoma who was receiving immune-suppressing medication and contracted a COVID-19 infection; she developed severe depression and eventually required hospitalization 10 days after symptom onset or 5 days after the COVID-19 infection-related symptoms disappeared. Although the patient did not exhibit any symptom of pneumonia upon admission, she developed COVID-19 pneumonia 3 weeks after the initial positive test. She received intravenous infusion of the antiviral drug remdesivir, which led to the improvement of pneumonia, and she was discharged on day 32 from testing COVID-19 positive. However, COVID-19 pneumonia recurred on days 64 and 74. Conclusion: This is the first report of COVID-19 pneumonia developing in a psychiatric ward in a patient on immunosuppressive drugs, weeks to months after testing positive with a PCR test. When patients with compromised immune function, such as those on immunosuppressant medication or those with human immunodeficiency virus disease, are admitted to a psychiatric ward, careful monitoring of the risk of recurrence and sufficient consideration for infection control measures are necessary to avoid outbreaks.
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To clarify the feeling of knowing a name but not being able to recall it, known as having a "tip-of-the-tongue" (TOT) experience, we proposed a TOT model consisting of three stages combining a face recognition model and autonomic sympathetic nerve activity. Since TOT increases with age, we compared two age groups: young (N = 27, M = 20.4 ± 1.5 years) and middle-aged (N = 29, M = 58.5 ± 8.0 years). Experiment 1 showed that successfully naming low-frequency common names increased the skin conductance response (SCR) value, and the time to reach the maximum SCR value was longer. Experiment 2 was a naming task for face photographs. The younger group showed higher SCR values during successfully naming, while the middle-aged group showed similar SCR values for successfully naming and experiencing TOT. Both groups had the longest time to reach maximum SCR in TOT. In this study, physiological arousal of TOT was not affected by aging.
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Cara , Nombres , Persona de Mediana Edad , Humanos , Adolescente , Adulto Joven , Adulto , Anciano , Recuerdo Mental/fisiología , Envejecimiento/fisiología , Lengua/fisiologíaRESUMEN
The treatment and care for severe psychiatric symptoms associated with dementia with Lewy bodies is challenging. This is especially true for elderly patients because the use of antipsychotics is associated with an attendant mortality risk. In this article, dementia patients with Lewy bodies who presented with severe psychiatric symptoms such as Capgras syndrome (delusional misidentification syndrome), are described, and pharmacological and non-pharmacological strategies to address these symptoms are discussed. Measures to be avoided include antipsychotic administration and physical restraint, both of which often lead to medical conditions and a bedridden status. Conversely, changing antiparkinsonian drugs (levodopa rather than dopamine agonists), cholinesterase inhibitor administration, physical rehabilitation, and providing a supportive, patient-friendly environment may help improve psychiatric symptoms or maintain functionality. In some cases, electroconvulsive therapy may be effective for severe psychiatric symptoms.
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Antipsicóticos , Síndrome de Capgras , Enfermedad por Cuerpos de Lewy , Anciano , Antipsicóticos/uso terapéutico , Síndrome de Capgras/terapia , Humanos , Cuerpos de Lewy , Enfermedad por Cuerpos de Lewy/complicaciones , Enfermedad por Cuerpos de Lewy/diagnóstico , Enfermedad por Cuerpos de Lewy/terapiaRESUMEN
BACKGROUND: Although differential diagnosis between autoimmune encephalitis and schizophrenia spectrum disorders is crucial for a good outcome, the psychiatric symptoms that distinguish these two conditions have not been identified even though psychiatric symptoms are often the main manifestation of autoimmune encephalitis. Also, there are many situations in clinical psychiatry in which laboratory testing and imaging studies are not available. Because no comparative study of the psychiatric symptoms between these two conditions has been carried out, we explored diagnostically useful psychiatric symptoms in a retrospective case-control study. METHODS: We recruited 187 inpatients with first-episode psychosis who were admitted to our psychiatric unit and categorized them into two groups: the autoimmune encephalitis group (n = 10) and the schizophrenia spectrum disorders group (n = 177). Differences in the symptoms and signs between the two groups were investigated. RESULTS: Schneider's first-rank symptoms (e.g., verbal commenting hallucinations and delusional self-experience) were observed only in the schizophrenia spectrum disorders group, whereas altered perception was found more frequently in the autoimmune encephalitis group. Functional status was worse in the autoimmune encephalitis group, and neurological and neuropsychological signs were revealed almost exclusively in this group. A history of mental illness was more frequently reported in the schizophrenia spectrum disorders group than in the autoimmune encephalitis group. CONCLUSIONS: The psychiatric symptoms, i.e., Schneider's first-rank symptoms and altered perception, together with neurological and neuropsychological signs, functional status, and past history, may help clinicians accurately differentiate these two conditions among patients with first-episode psychosis.
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Encefalitis , Trastornos Psicóticos , Esquizofrenia , Estudios de Casos y Controles , Encefalitis/diagnóstico , Enfermedad de Hashimoto , Humanos , Trastornos Psicóticos/diagnóstico , Estudios Retrospectivos , Esquizofrenia/complicaciones , Esquizofrenia/diagnósticoRESUMEN
BACKGROUND: Although hematological abnormalities in patients with anorexia nervosa have been documented, the mechanisms involved have not been fully clarified, especially during the refeeding period when hematological values further decrease after admission prior to improving. Here we address potential mechanisms underlying the hematological abnormalities of inpatients with anorexia nervosa during the refeeding period. METHODS: We recruited patients from 101 admissions corresponding to 55 individual patients with anorexia nervosa with severe malnutrition (body mass index, 13.4 ± 3.4) from the neuropsychiatry unit in Ashikaga Red Cross Hospital during the period from October 1999 to March 2018. We analyzed three hematological cell measures, i.e., hemoglobin, white cell count, and platelet count, to determine their levels at admission and their lowest levels during the refeeding period and calculated the percent decrease in those values from admission to the nadir levels. We analyzed each measure using a general mixed model with explanatory variables, including data upon admission and a treatment-related indicator, i.e., energy intake. RESULTS: The initial hemoglobin value of 12.1 ± 2.7 g/dl decreased by 22.3% to 9.4 ± 2.5 g/dl; the initial white cell count was 5387 ± 3474/µl, which decreased by 33.6% to 3576 ± 1440/µl; the initial platelet count of 226 ± 101 × 103/µl decreased by 24.3% to 171 ± 80 × 103/µl. All nadir levels were observed during the refeeding period from the fifth to tenth day of hospitalization. Significant correlations among the three hematological cell measures, particularly at the nadir levels, were found. Of note, 41.7% of our patients who received red blood cell transfusion during hospitalization showed normal hemoglobin levels upon admission. The anorexia nervosa restrictive type was associated with a lower nadir level of white blood cell count. Infectious complications were related to a lower nadir level of hemoglobin and a greater percent decrease in hemoglobin level as well as to the need for red blood cell transfusion. CONCLUSIONS: Nadir hematological cell measures of inpatients with anorexia nervosa might be predicted by the restrictive type and infectious complications. The anorexia nervosa restrictive type was associated with further decrease in hematological values during the refeeding period.
Deficiencies in components of the blood, such as a low red blood cell count, low white blood cell count, and low platelet numbers, are observed frequently in patients with anorexia nervosa, particularly those with severe malnutrition, and these deficiencies become manifest after hospitalization during the initial period when patients are reintroduced to food. Why this deterioration occurs even under medical care is not well understood. Here we analyzed the patient factors associated with these blood cell abnormalities. Patients with the restrictive type of anorexia nervosa, and infectious complications were more likely to have the lowest levels of hematological values during the refeeding period.