Comorbidity of borderline personality disorder with other personality disorders in hospitalized adolescents and adults

OBJECTIVE: The authors examined the comorbidity of borderline personality disorder with other personality disorders in a series of consecutively admitted adolescents. For comparison, the comorbidity of borderline personality disorder with other personality disorders was also examined in a series of adults consecutively admitted to the same hospital during the same period. METHOD: A total of 138 adolescents and 117 adults were reliably assessed with the Personality Disorder Examination, a semistructured diagnostic interview for DSM-III-R personality disorders. Sixty-eight adolescents and 50 adults met the diagnostic criteria for borderline personality disorder. The co-occurrence of other personality disorders in the group of subjects with borderline personality disorder was statistically compared to that in the group without borderline personality disorder, for adolescents and adults separately. RESULTS: For the adults, Bonferroni-corrected chi-square analysis revealed significant diagnostic co-occurrence with borderline personality disorder for antisocial personality disorder only. For the adolescents, borderline personality disorder showed significant co-occurrence with schizotypal and passive-aggressive personality disorders. CONCLUSIONS: In the adults, borderline personality disorder was significantly comorbid only with another cluster B disorder. The adolescents, by comparison, displayed a broader pattern of comorbidity of borderline personality disorder, encompassing aspects of clusters A and C. These results suggest that the borderline personality disorder diagnosis may represent a more diffuse range of psychopathology in adolescents than in adults.     

Comorbidity of borderline personality disorder and posttraumatic stress disorder in the U.S. population

While placed on different axes of the DSM classification system, borderline personality disorder (BPD) and posttraumatic stress disorder (PTSD) have important relationships with trauma, and overlap between these disorders has long been recognized. The current study is the first to examine comorbidity of PTSD and BPD in a large nationally representative sample using a reliable and valid method of assessing Axis I and II mental disorders. Data came from the National Epidemiologic Survey on Alcohol and Related Conditions (NESARC) Wave II (N = 34,653; response rate 70.2%). Multiple regression models were used to examine differences in psychopathology, traumatic events and health-related quality of life across individuals with PTSD alone (n = 1820), BPD alone (n = 1290) and those with comorbid PTSD–BPD (n = 643). The lifetime prevalence of PTSD and BPD were 6.6% and 5.9%, respectively. Of individuals with BPD, 30.2% were also diagnosed with PTSD, whereas 24.2% of individuals with PTSD were also diagnosed with BPD. Individuals with comorbid PTSD–BPD had a poorer quality of life, more comorbidity with other Axis I conditions, increased odds of a lifetime suicide attempt, and a higher prevalence of repeated childhood traumatic events than individuals with either condition alone. These results show that PTSD and BPD have a high degree of lifetime co-occurrence but are not entirely overlapping. Their concurrence is associated with poorer functioning compared to either diagnosis alone, emphasizing the clinical utility of diagnosing both conditions. Future research should explore the determinants of having either or both diagnoses with an aim toward improved identification, prevention, and intervention.     

Multiple personality and borderline personality disorder

The authors offer their theory that multiple personality represents a "special instance" of borderline personality disorder, that the introjects are composed of a representation of the self, a representation of the object, and an affective bond.     

Epidemiology of borderline personality disorder

The limited epidemiological data available on borderline personality disorder suggest that the prevalence of the disorder is between .2 and 1.8 percent in the general community, 15 percent among psychiatric inpatients, and 50 percent among psychiatric inpatients with a diagnosis of personality disorder. No data on the incidence--the rate of new cases--of the disorder have been reported, and inferences about incidence based on prevalence rates are complicated by differences in the formal designation of personality disorders before and after DSM-III was issued. Current findings suggest that about 76 percent of borderline patients are female. Epidemiological study of borderline personality disorder has been hindered by the lack of a brief semistructured interview that can be used with large population samples and that does not require substantial clinical expertise. The authors discuss alternative research methods, including use of lay interviewers, recoding of existing data, telephone interviews, and self-report inventories.     

Psychopharmacology of borderline personality disorder

Psychopharmacology is widely used in the treatment of borderline personality disorder. However, support for this form of treatment has been largely based on case reports, case series, and open-label clinical trials. This evidence-based review examines the most recent randomized controlled trials of psychopharmacology in the treatment of borderline personality disorder, with a goal of highlighting the most promising pharmacotherapy for use in current clinical practice, as well as for future large-scale research testing. The results and limitations of the randomized controlled trial data are presented along with case vignettes illustrating the complexity of the disorder and the heterogeneity of its treatment. To date, there is at least some evidence-based support for the use of antipsychotics (conventional and atypical), monoamine oxidase inhibitors, serotonin reuptake inhibitors, and omega-3 fatty acids in the treatment of borderline personality disorder.     

强迫障碍共病强迫型人格障碍的研究

目的:研究强迫型人格障碍(OCPD)在强迫障碍(OCD)中的共病情况,并研究OCD共病OCPD对OCD影响。方法:以69例门诊OCD患者为研究对象,采用DSM-Ⅳ轴Ⅱ障碍用临床定式检查(SCID-Ⅱ)研究强迫障碍患者的共病人格障碍(PD)情况,将研究对象分为2组:OCD共病OCPD组和OCD不共病OCPD组,对比研究2组间临床特征的不同。结果:79.7%强迫障碍患者合并有PD,C类中的OCPD和OCD共病率达43.5%。共病组较不共病组疾病严重程度更重,表现为发病年龄早、病程更长、强迫思维更严重。结论:OCPD和OCD关系密切,OCD共病OCPD是OCD严重程度的一个标志。     

Neuroimaging in borderline personality disorder

Neuroimaging has become one of the most important methods in the investigation of the neurobiological underpinnings of borderline personality disorder. Structural and functional imaging studies have revealed dysfunction in different brain regions which seem to contribute to borderline symptomatology. This review presents relevant studies using different methodologies: volumetry of limbic and prefrontal regions, investigations of brain metabolism under resting conditions, studies of serotonergic neurotransmission, and challenge studies using emotional, stressful, and sensory stimuli. Dysfunction in a frontolimbic network is suggested to mediate much, if not all of the borderline symptomatology.     

Fluoxetine in borderline personality disorder

1. 1. Twelve patients with borderline personality disorder and not suffering a major depression were treated with fluoxetine, a selective serotonin reuptake inhibitor, in an open label trial. All of the patients improved, and 75% were rated as much or very much improved.

2. 2. Treatment was generally very well tolerated, but careful dosage titration was important in some patients, especially to manage agitation.

3. 3. Improvement has been maintained with continued treatment throughout the follow-up period which ranged up to six months.

4. 4. Incidental findings suggest fluoxetine may also be of use in treating substance abuse, attention deficit hyperactivity disorder, late luteal phase dysphoria disorder, dysthymic and cyclothymic disorders, and seasonal pattern depression.

5. 5. These preliminary results support the hypothesis that borderline personality disorder may be related to a central scrotonergic deficit.

Developmental aspects of borderline personality disorder

This study examined whether patients with borderline personality disorder and controls with other personality disorders remember their childhoods differently with respect to separation difficulties, evocative memory, temperamental factors such as frustration tolerance and mood reactivity, and onset of symptoms. Two hundred and ninety patients with borderline personality disorder and 72 with other personality disorders were assessed using an instrument to rate memories of separation difficulties, temperamental problems, and onset of symptoms before age 18. Patients with borderline personality disorder remembered more difficulties with separation between ages 6 and 17 years, more mood reactivity and poorer frustration tolerance between ages 6 and 17, and the onset of more symptoms (most prominently sadness, depression, anxiety, and suicidality) before age 18 than did patients with other personality disorders. The groups did not differ in reports of evocative memory before age 18. These results indicate that many of the features of adult patients with borderline personality disorder may initially appear during childhood and adolescence and that these features may be used to differentiate borderline from other personality disorders.     

Cognitive features of borderline personality disorder

Of 50 patients with borderline personality disorder, 100% reported disturbed but nonpsychotic thought, 40% (N = 20) reported quasi-psychotic thought, and none reported true psychotic thought during the past 2 years; only 14% (N = 7) reported ever experiencing true psychotic thought. Disturbed and quasi-psychotic thought was significantly more common among these patients than among patients with other axis II disorders or schizophrenia and normal control subjects; however, true psychotic thought was significantly more common among schizophrenic patients. While disturbed thought was also common among axis II disorder and schizophrenic patients, quasi-psychotic thought was reported by only one of these subjects, suggesting that quasi-psychotic thought may be a marker for borderline personality disorder.