Borderline Personality Disorder: Clinical Guidelines for Treatment

Area of Science:

• Psychiatry
• Genetics
• Psychology

Background:

• Borderline personality disorder (BPD) is characterized by emotional dysregulation and personality traits like anger and impulsivity.
• Unlike schizotypal personality disorder's link to schizophrenia, BPD's connection to bipolar disorder is complex, involving both genetic predispositions and environmental influences.

Observation:

• BPD can arise from genetic risk for bipolar disorder, adverse postnatal factors (e.g., abuse, incest), or a combination of both.
• The genetic component of BPD is often underestimated, necessitating thorough family history evaluations, including extended relatives.

Findings:

• A family history suggesting a bipolar link may indicate that mood stabilizers (e.g., lithium, lamotrigine) are more effective than antidepressants for some BPD patients.
• In some cases, attention-deficit/hyperactivity disorder (ADHD) in childhood precedes BPD diagnosis and the later emergence of bipolar disorder in the 20s.

Implications:

• Treatment for BPD requires a flexible, integrated approach, combining psychotherapy (expressive or cognitive-behavioral), mood stabilizers if a genetic link is present, and management of co-occurring substance abuse.
• Psychotherapeutic techniques should be tailored to the individual's cognitive style and capacity for introspection, with supportive and limit-setting interventions crucial during crises.