Capgras syndrome in children and adolescents: A systematic review.

OBJECTIVES: To improve understanding of Capgras syndrome (CS) in the pediatric population, this study investigates its clinical features and discerns similarities and differences compared to CS in adults. METHODS: We conducted a descriptive systematic review of case reports following PRISMA guidelines, including cases of pediatric patients with CS. Patient demographics, medical and psychiatric history, imposter identity, underlying diagnosis, clinical manifestation, treatments, and outcomes were extracted and analyzed. RESULTS: We included 37 articles comprising 38 cases. The median age of patients was 15, with 23 (60.5%) being male. The most prevalent underlying diagnoses were schizophrenia spectrum and other psychotic disorders (47.3%). Imposter identity involved parents in 32 cases (84.2%). Associated symptoms included persecutory delusions (63.1%), auditory hallucinations (42.1%), aggression (31.5%), and depression (21.0%). CONCLUSION: There is a significant gap in our understanding of CS, particularly in pediatric patients. This is the first systematic review of CS in pediatric patients, encompassing all cases found in English literature since 1923.

Parents' experience of a shared parent-child stay during the first week of hospitalization in a child psychiatry inpatient ward.

Hospitalization of children in an inpatient psychiatric ward is stressful for both the children and their parents, and separation from the parents during hospitalization is probably one major cause of this stress. We designated one room in a closed inpatient unit to enable a parent to stay with his/her child, including overnight, during the 1st week of hospitalization. We then examined the parents' experience of the shared parent-child stay. Thirty parents of 16 children aged 6-12 years admitted to our inpatient child psychiatry ward completed in-depth semi-structured interviews after that week's experience. The interviews covered the parents' experiences of the 1st week in the larger context of pre-hospitalization period, which also includes the decision to hospitalize the child. The contents of the interviews were analyzed by means of independent coders that identified the following major themes: (1) ambivalence and confusion of the parents as related to their decision to hospitalize their child in the time period just before admission; (2) gradual process of separation from the child during the joint stay at the ward; (3) building confidence and trust toward the staff. Themes 2 and 3 express benefits from the joint hospitalization that may have a strong positive impact on the child's and the parent's recovery. These themes warrant further evaluation of the proposed shared stay during hospitalization in future studies.

A 16-month longitudinal investigation of risk and protective factors for mental health outcomes throughout three national lockdowns and a mass vaccination campaign: Evidence from a weighted Israeli sample during COVID-19.

BACKGROUND: COVID-19 is an ongoing global crisis, with a multitude of factors that affect mental health worldwide. We explored potential predictors for the emergence and maintenance of depression, anxiety, and posttraumatic stress symptoms (PTSS) in the general population in Israel. METHODS: Across the span of 16 months, 2478 people completed a repeated self-report survey which inquired psychiatric symptoms and pandemic related stress factors (PRSF). We applied mixed-effects models to assess how each stressor contributes to depression, anxiety and PTSS at each time point, and longitudinally assessed participants who completed at least two consecutive surveys (n = 400). We weighted our sample to increase representativeness of the population. RESULTS: Fatigue was the strongest predictor for depression, anxiety and PTSS at all time points, and predicted deterioration overtime. Financial concerns associated with depression and anxiety at all time points, and with their deterioration overtime. Health related concerns were uniquely associated with anxiety and PTSS at all time points and their deterioration, but not with depression. Improvement in sense of protection overtime associated with decrease in depression and anxiety. Hesitancy towards vaccination was associated to higher financial concerns and lower sense of protection by the authorities. CONCLUSIONS: Our findings accentuate the multitude of risk factors for psychiatric morbidity during COVID-19, and the centrality of fatigue in determining mental health outcomes.

Child and Adolescent Mental Health during the COVID-19 Pandemic: Challenges of Psychiatric Outpatient Clinics.

BACKGROUND: Worldwide national surveys show a rising mental health burden among children and adolescents (C&A) during COVID-19. The objective of the current study is to verify the expected rise in visits to psychiatric outpatient clinics of C&A, especially of new patients. METHODS: a cross-sectional study focusing on visits as recorded in electronic medical records of eight heterogeneous C&A psychiatric outpatient clinics. The assessment was based on visits held from March to December of 2019 (before the pandemic) in comparison to visits held in 2020 (during the pandemic). RESULTS: The number of visits was similar for both periods. However, in 2020, 17% of the visits used telepsychiatry (N = 9885). Excluding telepsychiatry reveals a monthly decrease in traditional in-person activities between 2020 and 2019 (691.6 ± 370.8 in 2020 vs. 809.1 ± 422.8 in 2019, mean difference = -117.5, t (69) = -4.07, p = 0.0002, Cohen's d = -0.30). Acceptation of new patients declined during 2020, compared to 2019 (50.0 ± 38.2 in 2020 vs. 62.8 ± 42.9 in 2019; Z = -3.12, p = 0.002, r = 0.44). Telepsychiatry was not used for new patients. CONCLUSIONS: The activity of C&A psychiatric outpatient clinics did not rise but was guarded due to the use of telepsychiatry. The decline in visits of new patients was explained by the lack of use of telepsychiatry for these patients. This calls for expanding the use of telepsychiatry, especially for new patients.

Pediatric psychiatric emergency rooms during COVID-19: a multi-center study.

BACKGROUND: The COVID-19 (SARS-CoV-2) pandemic has been a major stressor for the mental health and well-being of children and adolescents. Surveys and reports from hotlines indicate a significant rise in mental health problems. As the psychiatric emergency room (ER) is a first-line free-of-charge facility for psychiatric emergencies, we expected to see a significant increase in visits, specifically of new patients suffering from anxiety, depression, or stress-related disorders. METHODS: Data from two psychiatric hospital ERs and one general hospital were included. All visits of children and adolescents from the computerized files between March and December of 2019 were analyzed anonymously and compared to the same months in 2020, using multilevel linear modeling. RESULTS: There was a significant decline in the total number of visits (p = .017), specifically among those diagnosed as suffering from stress-related, anxiety, and mood disorder groups (p = .017), and an incline in the proportion of visits of severe mental disorders (p = .029). DISCUSSION: The limited use of child and adolescent psychiatric emergency facilities during the pandemic highlights the importance of tele-psychiatry as part of emergency services. It also suggests the importance of the timeline of the emergence of clinically relevant new psychiatric diagnoses related to the pandemic. Future studies are needed to establish the long-term effects of the pandemic and the expeditious use of tele-psychiatry.

Sleep Difficulties Among COVID-19 Frontline Healthcare Workers.

Objective: To identify COVID-19 work-related stressors and experiences associated with sleep difficulties in HCW, and to assess the role of depression and traumatic stress in this association. Methods: A cross-sectional study of HCW using self-report questionnaires, during the first peak of the pandemic in Israel (April 2020), conducted in a large tertiary medical center in Israel. Study population included 189 physicians and nurses working in designated COVID-19 wards and a comparison group of 643 HCW. Mean age of the total sample was 41.7 ± 11.1, 67% were female, 42.1% physicians, with overall mean number of years of professional experience 14.2 ± 20. The exposure was working in COVID-19 wards and related specific stressors and negative experiences. Primary outcome measurement was the Insomnia Severity Index (ISI). Secondary outcomes included the Primary Care-Post Traumatic Stress Disorder Screen (PC-PTSD-5); the Patient Health Questionnaire-9 (PHQ-9) for depression; the anxiety module of the Patient-Reported Outcomes Measurement Information System (PROMIS); Pandemic-Related Stress Factors (PRSF) and witnessing patient suffering and death. Results: Compared with non-COVID-19 HCW, COVID-19 HCW were more likely to be male (41.3% vs. 30.7%) and younger (36.91 ± 8.81 vs. 43.14 ± 11.35 years). COVID-19 HCW reported higher prevalence of sleep difficulties: 63% vs. 50.7% in the non-COVID group (OR 1.62, 95% CI 1.15-2.29, p = 0.006), mostly difficulty maintaining sleep: 26.5% vs. 18.5% (OR 1.65, 95% CI 1.11-2.44, p = 0.012). Negative COVID-19 work-related experiences, specifically witnessing patient physical suffering and death, partially explained the association. Although past psychological problems and current depression and PTSD were associated with difficulty maintaining sleep, the main association remained robust also after controlling for those conditions in the full model. Conclusion and Relevance: COVID-19 frontline HCW were more likely to report sleep difficulties, mainly difficulty maintaining sleep, as compared with non-COVID-19 HCW working at the same hospital. Negative patient-care related experiences likely mediated the increased probability for those difficulties. Future research is needed to elucidate the long-term trajectories of sleep difficulties among HCW during large scale outbreaks, and to identify risk factors for their persistence.

Stimulant treatment effectiveness, safety and risk for psychosis in individuals with 22q11.2 deletion syndrome.

This study aimed to retrospectively evaluate an association between stimulant treatment for attention-deficit/hyperactivity disorder (ADHD) in individuals with 22q11.2DS and the development of psychotic disorders, to evaluate long-term effectiveness and safety of stimulant treatment in individuals with 22q11.2DS compared to individuals with idiopathic ADHD, and to explore effects of catechol-O-methyltransferase (COMT) genotype on 22q11.2DS response to stimulants and risk of side effects. Rates of stimulant use and methylphenidate equivalent exposure were compared among individuals with 22q11.2DS, between 51 with psychotic disorders and a control group of 57 22q11.2DS without psychotic disorders, from Tel Aviv and Geneva. In addition, 44 individuals with 22q11.2DS and ADHD from Tel Aviv who initiated stimulants before age 18 years were compared to a control group of 35 age- and sex-matched controls with idiopathic ADHD, for treatment effectiveness (Clinical Global Impression Scale-Improvement), and rates of side effects. Stimulant use history and methylphenidate equivalent exposure did not differ among individuals with 22q11.2DS, between those with and without psychotic disorders. The long-term retrospective follow-up (5.3 ± 4.1 years) of stimulant-treated individuals with 22q11.2DS showed a higher rate of significant clinical improvement of ADHD symptoms, compared to idiopathic ADHD individuals (p = 0.013), and similar side effect rates. There was no effect of the COMT genotype on response to stimulants or on any side effects. This preliminary long-term retrospective analysis suggests that stimulant treatment in 22q11.2DS is apparently safe in terms of psychosis conversion and rates of side effects, and that it is effective in alleviating ADHD symptoms.

Left alone outside: A prospective observational cohort study on mental health outcomes among relatives of COVID-19 hospitalized patients.

Hospitalization due to COVID-19 bears many psychological challenges. While focusing on infected patients, their relatives are being largely neglected. Here, we investigated the mental health implications of hospitalization among relatives, over a one-month course. A single center study was conducted to assess relatives of COVID-19 patients during the first month from their admission to the hospital, and elucidate risk and protective factors for mental health deterioration. Ninety-one relatives of the first patients to be hospitalized in Israel were contacted by phone and screened for anxiety, depression, and posttraumatic stress symptoms (PTSS) at three time points (25-72 hours, 7-18 days, and one month). We found that anxiety and depression decreased significantly during the first month from their admission. Risk factors for deteriorated mental health at one month included feelings of mental exhaustion, financial concerns, and social disconnection. Being an ultra-orthodox was a protective factor for anxiety and depression but not for PTSS. Our findings emphasize the importance of addressing the mental health status of close relatives and adjust support for the unique setting of COVID-19.

Stimulant Treatment Effect on Anxiety Domains in Children with Attention-Deficit/Hyperactivity Disorder With and Without Anxiety Disorders: A 12-Week Open-Label Prospective Study.

Objectives: The effect of stimulants on anxiety domains has not been systematically studied. We assessed prospectively the impact of stimulant treatment in children with attention-deficit/hyperactivity disorder (ADHD) on the severity of anxiety domains and on ADHD with comorbid anxiety disorders. Methods: Children with ADHD (n = 57, aged 6-15 years) started a stimulant or were switched from one stimulant to another. Assessments were conducted at four time points (baseline and weeks 2, 6, and 12) and consisted of parental questionnaires (ADHD rating scale, screen for child anxiety related disorders [SCARED]), and side effect questionnaire completed by a child psychiatrist. Results: A significant improvement in total SCARED scores was obtained after 12 weeks stimulant treatment in children both with and without anxiety disorders. Significant reductions were detected in generalized anxiety, separation anxiety, and school avoidance SCARED subscales, but not in panic and social anxiety subscales. ADHD symptoms significantly improved both in children with and without anxiety comorbidities. Conclusion: We found specific effects of stimulants on anxiety domains. Stimulant treatment, even for ADHD children diagnosed with comorbid anxiety disorders, is relatively safe regarding the risk of anxiety exacerbation. Moreover, the presence of anxiety symptoms or disorders does not interfere with the beneficial effect of the stimulants on the ADHD core symptoms. Clinical trial regestration number: IRB SMC-6893-20.

Delivering Difficult News: Simulation-Enhanced Training Improves Psychiatry Residents' Clinical Communication Skills.

Background: Delivering difficult news to individuals diagnosed with mental health disorders and their family members can be challenging. The use of simulated patients (SP) is an effective teaching method to enhance clinical skills, particularly those around communication. We developed, implemented, and evaluated the effectiveness of an SP-based training module to improve psychiatric residents' clinical communication skills in delivering difficult news. Methods: We conducted 5-h workshops consisting of 3 components: (1) a high-fidelity simulation session with a professional actor; (2) a 30-min lecture; and (3) role-playing of 3 short scenarios, during which residents rotated taking on different roles (as psychiatrist, patient, or family member). We observed through a 1-way mirror and videotaped each resident's simulation session and followed it with personalized debriefing. Following the workshop, each resident received the full-length video of their simulated interview, together with a list of questions as a take-home assignment. Two months after the workshop, the residents were invited to a second SP-based session, during which 2 independent evaluators, each a board-certified psychiatrist with expertise in medical simulation, evaluated the participants' communication skills using a previously validated instrument. To avoid observation bias, the 2 evaluators rated the videotapes blind to the timing of the simulation (pre- vs. post-training). Participants completed self-report questionnaires on satisfaction and self-confidence, before, after, and 2 months following the workshop. Findings: Of the 28 psychiatric residents who participated in the training day, 24 (86%) completed the post-workshop evaluation. Mean communication score increased from 24.9 to 27.8 (paired t-test: 5.6, p < 0.001). The mean score for the self-confidence questionnaire, calculated on a 1 to 5 Likert scale, increased from 3.4 to 4.0 after the training day, and remained unchanged (4.2) 2 months later (p < 0.001). Conclusions: An SP-based training module proved useful in improving the objectively measured communication skills of psychiatric residents delivering difficult news. The training further enhanced participants' subjective sense of confidence in those clinical skills.

The association between witnessing patient death and mental health outcomes in frontline COVID-19 healthcare workers.

BACKGROUND: Healthcare workers (HCW) treating coronavirus disease 2019 (COVID-19) patients face high levels of psychological stress. We aimed to compare mental health outcomes, risk and protective factors for posttraumatic stress symptoms (PTSS), probable depression, and anxiety between HCW working in COVID-19 and non-COVID-19 wards. METHODS: A self-report survey, administered in a large tertiary hospital in Israel during the peak of the COVID-19 outbreak was completed by 828 HCW (42.2% physicians, 57.8% nurses. Patient-Reported Outcomes Measurement Information System; the Patient Health Questionnaire-9; the Primary Care-Post Traumatic Stress Disorder Screen for DSM-5 (PC-PTSD-5) were used for assessing anxiety, depression, and PTSS, respectively. Pandemic-related stress factors, negative experiences, and potential protective factors were also assessed. RESULTS: Median PC-PTSD scores differed significantly between study teams (χ2 [5] = 17.24; p = .004). Prevalence of probable depression and anxiety were similar in both groups. Risk factors for mental health outcomes included mental exhaustion, anxiety about being infected and infecting family. Overall, higher proportion of the COVID-19 team witnessed patient deaths as compared to the non-COVID-19 team (50.2% vs. 24.7%). Witnessing patient death at the COVID-19 wards was associated with a four-fold increased likelihood of PTSS (odds ratio [OR] = 3.97; 95% confidence interval [CI], 1.58-9.99; p = .0007), compared with the non-COVID-19 wards (OR 0.91; 95% CI, 0.51-1.61; p = .43). CONCLUSIONS: Witnessing patient death appears to be a risk factor for PTSS unique to HCW directly engaged in treating patients with COVID-19. Our findings suggest that helping HCW cope with COVID-19 related deaths might reduce their risk of posttraumatic stress.

Anxiety, pandemic-related stress and resilience among physicians during the COVID-19 pandemic.

BACKGROUND: Physicians play a crucial frontline role in the COVID-19 pandemic, which may involve high levels of anxiety. We aimed to investigate the association between pandemic-related stress factors (PRSF) and anxiety and to evaluate the potential effect of resilience on anxiety among physicians. METHODS: A self-report digital survey was completed by 1106 Israeli physicians (564 males and 542 females) during the COVID-19 outbreak. Anxiety was measured by the 8-item version of the Patient-Reported Outcomes Measurement Information System. Resilience was evaluated by the 10-item Connor-Davidson Resilience Scale. Stress was assessed using a PRSF inventory. RESULTS: Physicians reported high levels of anxiety with a mean score of 59.20 ± 7.95. We found an inverse association between resilience and anxiety. Four salient PRSF (mental exhaustion, anxiety about being infected, anxiety infecting family members, and sleep difficulties) positively associated with anxiety scores. CONCLUSIONS: Our study identified specific PRSF including workload burden and fear of infection that are associated with increased anxiety and resilience that is associated with reduced anxiety among physicians.

Pharmacotherapy of attention-deficit hyperactivity disorder: common quandaries, dilemmas and challenges.

Multiple studies have shown that pharmacologic treatments for attention-deficit hyperactivity disorder (ADHD), especially stimulants, are generally effective. There is yet a paucity of empirical data, however, for some common clinical conditions overlooked in the ADHD treatment guidelines. Some examples include: in cases of first line treatment failure, it is unclear whether switching from one type of stimulant to another is beneficial. In cases of comorbid ADHD and severe aggressive/disruptive behavior in children, it is unclear whether the best first-line treatment is stimulants or atypical antipsychotics like risperidone. In cases of ADHD with comorbid anxiety disorders, there is no clear evidence regarding optimal treatment. The objectives of this article are to review these issues and propose possible answers for such clinical dilemmas.

Effectiveness and side effects of psychopharmacotherapy in individuals with 22q11.2 deletion syndrome with comorbid psychiatric disorders: a systematic review.

22q11.2 deletion syndrome (22q11.2DS) is the most common microdeletion in humans and is associated with high rates of attention deficit/hyperactivity disorder (ADHD), psychotic spectrum disorders and mood and anxiety disorders. The objective of the study was to systematically review studies regarding pharmacological treatments for psychiatric disorders in individuals with 22q11.2DS and to provide practical guidelines for the psychiatric management and side effect monitoring in 22q11.2DS. A literature search was conducted using the databases PubMed, PsycINFO and Embase. Information regarding study population, drug treatment, side effect profile and efficacy for each trial was extracted. Data collection was completed on May 2018. The search identified 705 studies. A total of seven studies, describing 182 individuals, were included. Pharmacological interventions included three studies for antipsychotic treatment, two studies for stimulants, one study for selective serotonin reuptake inhibitors (SSRIs), one study for S-adenosyl-L-methionine (SAMe), and one case series for metyrosine. The presented data support the clinical impression that individuals with 22q11.2DS and comorbid psychiatric disorders are treated in a manner comparable to non-22q11.2DS individuals. However, distinct medical comorbidities common in individuals with 22q11.2DS may complicate the administration of pharmacotherapy. Further trials with RCT design, larger sample sizes and more syndrome-specific pharmacological agents are needed to improve evidence-based psychiatric care of 22q11.2DS individuals with comorbid mental disorders.

Association between CANCA1C gene rs1034936 polymorphism and alcohol dependence in bipolar disorder.

INTRODUCTION: Bipolar disorder (BD) is a highly heritable and disabling mental illness, commonly associated with substance abuse, being alcohol abuse the most frequent. Comorbid BD and substance abuse disorders are often associated with high levels of health service utilization and destabilization of the course of illness resulting in poor treatment outcomes. Although recent genome-wide association studies have detected a number of risk genes for BD, the data is still sparse and inconclusive for those genes that may contribute to the increased risk of comorbid alcohol abuse (AA) in BD. The primary aim of the present study was to investigate the effects of 46 single-nucleotide polymorphisms (SNPs) within eight genes on different phenotypes of BD patients, such as comorbid alcohol abuse. We further assessed clinical variables associated with AA. METHODS: One-hundred fifty-eight BD I and II patients were enrolled in a naturalistic cohort study. Genomic DNA of 92 patients was extracted from whole blood using standard procedures and 46 tag SNPs in eight genes of interest (ANK, CACNA1C, CACNB2, FKBP5, GRM7, ITIH3, SYNE1 and TCF4) were genotyped. RESULTS: Seventy-one patients out of 158 (45%) satisfied diagnostic criteria for comorbid AA. Among 46 SNPs analyzed, the only SNP associated with comorbid AA was rs1034936 polymorphism in the CANCA1C gene. This polymorphism was also associated with lifetime cocaine abuse, manic switch and current atypical antipsychotics. CONCLUSIONS: Our findings suggest a role of rs1034936 CACNA1C gene variant in BD-AA group. Despite their preliminary nature, the present results may provide new insight on mechanisms underlying AA in BD.

Predominant polarity in bipolar disorder patients: The COPE bipolar sample.

BACKGROUND: The concept of predominant polarity (PP) is defined as presenting more symptoms of one polarity. Previous studies have defined PP as one polarity (either a depression or mania episode) occurring during at least two-thirds of the lifetime. METHODS: We conducted an observational study with the COPE-BD (Clinical Outcome and Psycho-Education for Bipolar Disorder, Clinical Outcome Measures Section) dataset to identify the diagnostic and treatment differences between bipolar disorder (BD) patients with and without PP. RESULTS: The final sample included 210 BD-I (59.0%) and 146 BD-II (41.0%) patients. Of these, 28.9% patients presented predominant polarity (PP): 62 (17.4%) of those patients were depressed polarity predominant (DPP), 41 (11.5%) were manic polarity predominant (MPP), and 253 (71.1%) met criteria for bipolar disorders but did not present with PP. In comparison to this group of BD patients with undetermined polarity, the group of BD patients with PP presented more rapid cycling. Furthermore, in the undetermined polarity group, the onset of illness occurred earlier, and the duration of the illness was longer, with more hypomanic/manic and depressive episodes than patients who met the PP criteria. LIMITATIONS: This study has a naturalistic and retrospective design and does not allow a specific follow-up of polarity over time. CONCLUSIONS: These different clinical characteristics underline the importance of considering PP in patients with BD, and justify the need for differential treatment approach which could have an impact on patients' prognosis. Yet, more independent and prospective research is needed to confirm these findings, especially with the new classification of DSM-5 concerning mixed states.

Education and employment trajectories from childhood to adulthood in individuals with 22q11.2 deletion syndrome.

22q11.2 deletion syndrome (22q11.2DS) is the most common known microdeletion in humans occurring in 1 out of 2000-4000 live births, with increasing numbers of individuals with the microdeletion living into adulthood. The aim of the study was to explore the education and employment trajectories of individuals with 22q11.2DS from childhood to adulthood in a large cohort composed of two significant samples. 260 individuals with 22q11.2DS, 134 male and 126 female, aged 5-59 years (mean age 21.3 ± 10.8 years) were evaluated at two sites, Geneva (GVA) and Tel Aviv (TA). Psychiatric comorbidities, IQ score, and adaptive functioning were assessed using gold-standard diagnostic tools. Demographic factors, such as data about education, employment, marital status, and living status, were collected. Children entering elementary school (5-12 years) were significantly more likely to attend a mainstream school, while adolescents were significantly more likely to attend special education schools (p < 0.005). Cognitive abilities, and not adaptive functioning, predicted school placement. Among adults with 22q11.2DS (n = 138), 57 (41.3%) were unemployed, 46 (33.3%) were employed in open market employment, and 35 (25.4%) worked in assisted employment. In adulthood, adaptive functioning more than cognitive abilities predicted employment. Surprisingly, psychotic spectrum disorders were not found to be associated with employment. Individuals with 22q11.2DS are characterized by heterogeneity in educational and employment profiles. We found that cognitive abilities and adaptive functioning, and not the presence of psychiatric disorders, are key factors in school placement and employment. These factors should, therefore, be taken into account when planning optimal development of individuals with 22q11.2DS.

Added Value of Fetal MRI in the Evaluation of Fetal Anomalies of the Corpus Callosum: A Retrospective Analysis of 78 Cases.

OBJECTIVE: To evaluate the added value of fetal MRI to ultrasound in detecting and specifying callosal anomalies, and its impact on clinical decision making. METHODS: Fetuses with a sonographic diagnosis of an anomalous corpus callosum (CC) who underwent a subsequent fetal brain MRI between 2010 and 2015 were retrospectively evaluated and classified according to the severity of the findings. The findings detected on ultrasound were compared to those detected on MRI. An analysis was performed to assess whether fetal MRI altered the group classification, and thus the management of these pregnancies. RESULTS: 78 women were recruited following sonographic diagnoses of either complete or partial callosal agenesis, short, thin or thick CC. Normal MRI studies were obtained inµ19 cases (24 %). Among these, all children available for follow-up received an adequate adaptive score in their Vineland II adaptive behavior scale assessment. Analysis of the concordance between US and MRI demonstrated a substantial level of agreement for complete callosal agenesis (kappa: 0.742), moderate agreement for thin CC (kappa: 0.418) and fair agreement for all other callosal anomalies. Comparison between US and MRI-based mild/severe findings classifications revealed that MRI contributed to a change in the management for 28 fetuses (35.9 %), mostly (25 fetuses, 32.1 %) in favor of pregnancy preservation. CONCLUSION: Fetal MRI effectively detects callosal anomalies and enables satisfactory validation of the presence or absence of callosal anomalies identified by ultrasound and adds valuable data that improves clinical decision making.