Diagnostic Criteria and Treatment Options for Personality Disorders

Diagnostic Criteria

• The ICD-11 differentiates personality disorders by severity and allows specification of maladaptive personality traits including negative affectivity, detachment, dissociality, disinhibition, anankastia, and borderline pattern, as defined by the American Psychiatric Association 1
• The DSM-5 alternative model proposes a dimensional-categorical hybrid approach that assesses impairments in personality functioning and evaluation of pathological personality traits across five domains, according to the American Psychiatric Association 1

Classification of Personality Disorders

• Borderline Personality Disorder criteria include onset in early adulthood, repeated suicide attempts and non-lethal self-injury, pervasive pattern of impulsivity strongly associated with suicidality, unstable mood and interpersonal relationships, varying self-concept, dissociative symptoms, and self-damaging behaviors, as outlined by the American Academy of Child and Adolescent Psychiatry 2

Etiology

• The development of personality disorders involves a complex interaction of genetic predisposition, environmental factors, particularly adverse childhood experiences, and family psychopathology, including history of suicidal behavior, bipolar illness, physical/sexual abuse, or substance abuse, as reported by the American Academy of Child and Adolescent Psychiatry 2
• Personality disorders arise from a complex mix of risk and protective factors within an individual's biopsychosocial constellation, according to the American Academy of Child and Adolescent Psychiatry 3

Clinical Presentation and Impact

• Personality disorders are associated with premature mortality, as reported by the American Academy of Child and Adolescent Psychiatry 2

Assessment

• Assessment requires gathering information from multiple sources using varied developmentally sensitive techniques, as recommended by the American Academy of Child and Adolescent Psychiatry 3
• Confirmation from multiple informants is necessary due to potential discrepancies in self-reporting, as noted by the American Academy of Child and Adolescent Psychiatry 2

Treatment Options

• Evidence-based psychotherapeutic approaches include Dialectical Behavior Therapy (DBT), Cognitive Behavioral Therapy (CBT), Mentalization-Based Treatment, Schema Therapy, and Transference-Focused Psychotherapy, as recommended by the American Academy of Child and Adolescent Psychiatry 2, 3
• Pharmacotherapy is recommended in specific situations, primarily to target specific symptoms rather than the personality disorder itself, such as mood stabilizers for emotional dysregulation, antipsychotics for cognitive-perceptual symptoms, antidepressants for comorbid depression or anxiety, and anxiolytics, as reported by the American Academy of Child and Adolescent Psychiatry 2

Classificação dos Transtornos de Personalidade pela CID-10 e CID-11

Mudança da CID-10 para a CID-11 nos Transtornos de Personalidade

• A Organização Mundial da Saúde (OMS) substituiu a abordagem de classificação dos transtornos de personalidade em categorias discretas na CID-10 por um modelo dimensional único na CID-11 que avalia a gravidade e traços específicos de personalidade 4, 5
• A divisão dos transtornos de personalidade em categorias discretas na CID-10 não possui base empírica sólida 4
• Muitos pacientes preenchiam simultaneamente critérios para múltiplos transtornos de personalidade 4, 5

Nova Abordagem na CID-11

• A CID-11 inclui um único diagnóstico de transtorno de personalidade caracterizado por problemas no funcionamento de aspectos do self e/ou disfunção interpessoal 4, 5
• O diagnóstico de transtorno de personalidade na CID-11 é diferenciado de acordo com a gravidade em: leve, moderado e grave 4, 5
• O diagnóstico pode ser opcionalmente especificado pela presença de um ou múltiplos traços mal-adaptativos de personalidade 4, 5

Vantagens da Nova Classificação na CID-11

• A nova classificação na CID-11 tem maior utilidade clínica e simplicidade na revisão do agrupamento de transtornos de personalidade 4, 5
• Estudos de campo mostram que profissionais de saúde mental avaliaram a classificação de transtornos de personalidade da CID-11 como mais útil para planejamento de tratamento, comunicação com pacientes, abrangência e facilidade de uso em comparação com a classificação da CID-10 6

Diagnosing Personality Disorders Without Requiring Patient Insight

Core Diagnostic Framework

• The World Health Organization's ICD-11 recommends diagnosing personality disorders based on problems in functioning of aspects of the self and/or interpersonal dysfunction, regardless of patient insight 7, 8, 9.
• The ICD-11 replaced discrete personality disorder categories with a single dimensional diagnosis differentiated by severity and optional specification of maladaptive personality traits, as suggested by the World Health Organization 7, 8, 9.

Why Lack of Insight Is Expected, Not Exclusionary

• Lack of insight is especially common in personality disorders and represents a core feature that distinguishes these conditions from many primary psychiatric disorders, according to research published in Brain 10, 11, 12.
• Self-report psychiatric scales have minimal usefulness in personality disorders specifically due to patients' impaired insight, as noted in studies published in Brain 10, 12.
• Behavioral scales that capture lack of insight have been shown to improve early differentiation between personality disorders and other psychiatric conditions, as demonstrated in research published in Brain 11, 12.

Clinical Pitfalls to Avoid

• Clinicians should assess who initiated the consultation process and whether the patient is over- or under-emphasizing disability, as these process observations provide diagnostic information independent of patient insight, according to research published in Brain 10, 11, 12.

Approach to Assessment and Treatment of Personality Disorders

Diagnostic Considerations

• Informant discrepancies should be expected and evaluated systematically in the diagnosis of personality disorders, as they do not invalidate the diagnosis, according to the Psychological Bulletin 13, 14

Assessment and Treatment Guidelines

• The American Psychological Association recommends using structured interviews rather than self-report questionnaires for diagnosing personality disorders, due to the impaired insight of patients, due to research published in the Psychological Bulletin 13, 14

Recognition and Definition of Narcissistic Personality Disorder

Formal Recognition as a Medical Condition

• Narcissistic Personality Disorder (NPD) is formally recognized as a psychiatric medical condition and classified as a personality disorder within major diagnostic systems such as the DSM and ICD. 15, 16

Definition by Public Health Authorities

• The Centers for Disease Control and Prevention (CDC) define mental health disorders—including personality disorders—as “medical conditions that disrupt a person’s thinking, feeling, mood, ability to relate to others, and daily functioning.” 15, 16

Placement Within the Spectrum of Personality Disorders

• Within the broader category of personality disorders, NPD is listed alongside borderline, avoidant, and antisocial personality disorders. 15, 16