'Come share my world' of 'madness': a systematic review of clinical, diagnostic and therapeutic aspects of folie à deux.

Folie à deux, also known as shared psychotic disorder, shows intrinsic differences when compared to other psychiatric disorders. Literature about this condition is scanty and findings about its clinical correlates are not univocal. The present systematic review aimed at critically summarizing the existing evidence about folie à deux, also focussing on psychopathological, diagnostic and treatment features. The electronic databases PUBMED, Web of Science and Scopus were systematically searched according to the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) statement. Articles reporting original data about socio-demographic, aetiological, clinical, diagnostic and treatment features of folie à deux, providing information about both primaries and secondaries, were included. Risk of bias was evaluated using the Critical Appraisal Skills Programme (CASP) instruments. The initial search yielded 834 records. After the screening process only 9 papers were deemed eligible for inclusion in the review. Folie à deux emerged to be a heterogeneous condition with a complex etiopathogenesis. The clinical presentation of the disorder included a multi-facet aspect, going beyond the classical description mainly focussed on delusions and possibly explaining conflicting outcomes of different treatments. Diagnostic categories appear to be often reductive and the need for a dimensional approach capable of global reliability emerged.

Shared Delusion: Impact on the Parent-Child Relationship.

Folie à famille, also known as shared psychotic disorder among family members, is a rare and underdiagnosed psychiatric condition. This disorder, seldom discussed in the literature, is particularly notable for its impact on clinical management and parent-child relationships. The few reported cases have predominantly focused on adult populations, leaving a significant gap in understanding how this condition manifests and affects younger individuals and family dynamics. One area that remains largely unexplored in the literature is the intersection between attachment patterns and shared psychosis, particularly in the context of parent-child relationships. Understanding this intersection is crucial, as it can provide insights into the development and perpetuation of shared delusions within families. This article presents a case study of a school-aged female with autism spectrum disorder who exhibits a multi-generational shared delusion. This unique case highlights the complexities of diagnosing and managing shared psychotic disorders in children, especially when compounded by other developmental conditions. The treatment implications are profound, requiring a careful and nuanced approach to pharmacological and psychotherapeutic interventions.

Folie À Trois: A Case of Shared Delusions Between a Patient, Her Sister, and Another Patient in the In-Patient Psychiatric Unit.

Folie à deux is a rare condition in which a single person (often with a psychiatric disorder) develops a delusion that is shared by another person. Folie à troix is when a delusion is shared by three people. This case report documents the unusual case of an individual who shared delusions with two different people simultaneously. This report inspires questions about this person, her delusions, and what made them so believable to others. It is known that the development of shared delusions most commonly occurs in relative isolation and disproportionately affects individuals with preexisting psychiatric comorbidities. Because of these risk factors, delusions in a psychiatric unit may be even more "contagious" than in the general population. To our knowledge, this case report is the first to document a newly developed delusion shared between two unrelated patients in a single psychiatric unit. While physical separation of patients is the best practice in such cases, a risk-benefit analysis is needed prior to this intervention given the social barriers that may limit such an approach. Further research is needed to diagnose, manage, and optimize treatment for shared delusions in settings such as inpatient psychiatric facilities.

Folie à deux / Case report: Folie à deux

JMCD, Sexo masculino, 19 años, soltero, sin hijos. Vive en Casas Compartidas de la Fundación Don Bosco. Examen Mental: Refiere que conversa con Dios en su corazón, y ahí siente el "fuego", pero no lo ve ni lo escucha. Dice tener la misión de predicar (sin mayor elaboración), y que no le gusta ninguna Iglesia. Discurso sin alteración del curso formal. Afecto de "templanza" forzada y superioridad. Al ingreso se agita y presenta postura antieconómica (también en el hogar: crucificado). Pone los ojos en blanco y parpadea rápidamente. Sin consciencia de enfermedad. Juicio de realidad alterado. Diagnósticos: Síndrome delirante lúcido. Folie à deux. Discusión: El trastorno de ideas delirantes inducidas, también conocido como Trastorno psicótico compartido o folie à deux es una condición poco común, caracterizada por síntomas psicóticos en 2 o más individuos que mantienen una relación cercana.

JMCD, male, 19 years old, single, childless. Live in shared houses of the Don Bosco Foundation. Mental examination: Refers conversing with God in his heart, and there he feels the "fire", but neither sees nor hears God. He claims to have the mission of preaching (without further processing), and he does not like any church. Speech without altering the formal course. Forced "temperance" affection and superiority. Agitation at Income and presents uneconomical posture (also at home: crucified). He rolls his eyes and blinks rapidly. Without awareness of disease. Reality trial actually altered. Diagnosis: Lucid delusional syndrome. Folie à deux. Discussion: The disorder of induced delusional thoughts, also known as shared psychotic disorder or folie à deux is a rare condition characterized by psychotic symptoms in 2 or more individuals who maintain a close relationship.