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PubMed1995

[Neurologic diagnosis and certification in persons chronically exposed to certain organic solvents in light of personal cases].

A clinical picture of selected cases diagnosed or suspected of chronic poisoning by organic solvents such as: Trichlorethylene (TRI), Tetrachlorethylene (PER), Carbon Disulfide (CS2) is presented. Based on examples of diagnosed neurological syndromes, some diagnostic and certification issues concerning occupational diseases of the neurological system, are analysed. An objective assessment of patients' complaints, differentiation between occupational diseases, so called idiopathic diseases of the nervous system, selection of appropropriate diagnostic methods in order to confirm or exclude these diseases belong to essential problems among those discussed.

Adult↗
PubMed1977

Giardiasis in day-care centers: evidence of person-to-person transmission.

In August and September 1975, an outbreak of diarrhea occurred in children 1 to 3 1/2 years old attending a day-care center. An investigation revealed overlapping epidemics of shigellosis and giardiasis, with 54% of the children infected with Giardia lamblia. At two other centers 29% and 38% of the children had G. lamblia infection, but none had Shigella. The prevalence of G. lamblia in the day-care children was significantly higher than the 2% prevalence in age-matched children not in day-care centers. Epidemiologic data suggested fecal-oral transmission of the parasite from child to child in the centers and from infected children to other family members.

Adult↗
PubMed1996

Hantavirus pulmonary syndrome in Argentina. Possibility of person to person transmission.

In March 1995 the first case of a familiar outbreak of Hantavirus pulmonary syndrome (HPS) was notified in El Bolson, in the South of Argentina. Until December 15, 1996, a total of 77 cases of HPS had been notified with 48% mortality, distributed in three geographical areas of the country, South, North and Center. During 1996, of the 19 cases from El Bolsón, three were local physicians, one of whom -during the prodrome of her illness- travelled to Buenos Aires to be attended. In the hospital, two of the physicians who assisted her, developed HPS 27 and 28 days after the first contact. These data suggest for the first time the possibility of interhuman transmission of the Hantavirus responsible for the pulmonary syndrome.

Argentina↗
PubMed1998

Shigella outbreak in a school associated with eating canteen food and person to person spread.

In June 1993 an outbreak of Shigella sonnei infection at a primary school in south east England affected 42% of 327 pupils and staff. Attack rates of diarrhoea and fever were 33% for children aged 4 to 8 years, and 8% for those aged 8 to 12 years (p < 0.00001). Illness was associated with eating canteen food (relative risk 5.9; 95% confidence interval 3.4, -10.3). All strains examined were S. sonnei phage type 3, with the same antibiogram (ttSTSS), and were indistinguishable using colicin typing and biotyping (colicin type 9, E8) and pulse field gel electrophoresis. Molecular epidemiology suggested but could not confirm that the outbreak strain was introduced into the school population from the community.

Adult↗
PubMed2004

Prevalence, correlates, and disability of personality disorders in the United States: results from the national epidemiologic survey on alcohol and related conditions.

OBJECTIVE: To present nationally representative data on the prevalence, sociodemographic correlates, and disability of 7 of the 10 DSM-IV personality disorders. METHOD: The data were derived from the 2001-2002 National Epidemiologic Survey on Alcohol and Related Conditions (N = 43,093). Diagnoses were made using the Alcohol Use Disorder and Associated Disabilities Interview Schedule-DSM-IV Version, and associations between personality disorders and sociodemographic correlates were determined. The relationship between personality disorders and 3 emotional disability scores (Short-Form 12, version 2) was also examined. RESULTS: Overall, 14.79% of adult Americans (95% CI = 14.08 to 15.50), or 30.8 million, had at least 1 personality disorder. The most prevalent personality disorder in the general population was obsessive-compulsive personality disorder, 7.88% (95% CI = 7.43 to 8.33), followed by paranoid personality disorder 4.41% (95% CI = 4.12 to 4.70), antisocial personality disorder 3.63% (95% CI = 3.34 to 3.92), schizoid personality disorder 3.13% (95% CI = 2.89 to 3.37), avoidant personality disorder 2.36% (95% CI = 2.14 to 2.58), histrionic personality disorder 1.84% (95% CI = 1.66 to 2.02), and dependent personality disorder 0.49% (95% CI = 0.40 to 0.58). The risk of avoidant, dependent, and paranoid personality disorders was significantly greater among women than men (p <.05); the risk of antisocial personality disorder was greater among men compared with women (p <.05); and no sex differences were observed in the risk of obsessive-compulsive, schizoid, or histrionic personality disorders. In general, risk factors for personality disorders included being Native American or black, being a young adult, having low socioeconomic status, and being divorced, separated, widowed, or never married. Avoidant, dependent, schizoid, paranoid, and antisocial personality disorders (p <.02 to p <.0001) were each statistically significant predictors of disability. Obsessive-compulsive personality disorder was inconsistently related to disability. In contrast, disability was not significantly different among individuals with histrionic personality disorder compared with those without the disorder. CONCLUSION: Personality disorders are prevalent in the general population and are generally highly associated with disability. This study highlights the need to develop more effective and targeted prevention and intervention initiatives for personality disorders.

Adolescent↗
PubMed1992

Personality disorders in obsessive compulsive disorder.

Standardized structured interview personality scales are now available that provide better reliability than clinician interview, but are still imperfect. These scales diagnose DSM III-R personality disorders, which are more illness-oriented than Freudian notions. Use of these scales has found that the majority of patients with OCD have at least one Axis II personality disorder, with most falling in cluster C. Obsessive compulsive personality disorder, as described in DSM-III-R, is, in most samples studied, present in the minority of patients with OCD, and is often less common than other personality disorders such as mixed, dependent, avoidant, and histrionic. The prevalence of this personality disorder as modified in DSM-III-R (making it easier for a patient to qualify for this personality disorder diagnosis) appears to be higher, although still present in a minority of patients with OCD. Obsessive compulsive personality disorder (along with the other cluster B and C personality disorders) has not been reported to have a consistent relation to treatment outcome. There is evidence that in some cases, obsessive compulsive personality disorder may be secondary to OCD. Swedo et al hypothesized that some children may develop compulsive personality traits as an adaptive mechanism to deal with OCD. This hypothesis is in accord with our finding that OCD often predates compulsive personality disorder and that mixed personality disorder may develop over time, possibly secondary to OCD. We found in our sample of 96 adult patients with OCD that the presence of mixed personality disorder was more likely with longer duration of OCD, suggesting that patients who do not have premorbid personality disorders may develop significant personality traits (especially avoidant, compulsive, and dependent), which may be related to behavioral and life-style changes that are secondary to OCD. This hypothesis is strengthened by our finding that patients with one of these personality disorders at baseline tended to no longer meet criteria for them following successful treatment of their OCD. It now appears that schizotypal personality disorder, which is thought to be related genetically to schizophrenia (e.g., in three male identical twin pairs concordant for OCD but discordant for schizophrenia or schizoaffective disorder, the nonpsychotic co-twins all had schizotypal personality disorder), is the only consistent personality disorder predictor of poorer outcome in OCD. These traits may help explain other proposed poor predictors of treatment outcome such as overvalued beliefs, poor compliance, and chaotic family situations.(ABSTRACT TRUNCATED AT 400 WORDS)

Comorbidity↗
PubMed1991

The comorbidity of multiple personality disorder and DSM-III-R axis II disorders.

Our ability to differentiate MPD from DSM-III-R Axis I disorders has become increasingly refined. Differentiation of MPD from the Axis II personality disorders is an area of more recent clinical investigation. MPD can be found comorbidity with many other psychiatric conditions. It is found in association with each of the DSM-III-R personality disorders. At the present time, however, we lack research data that define the prevalence of the comorbidity of MPD with the personality disorders. Objective study of this area is complicated by the paucity of instruments available to assess personality dimensions in the presence of a DD. In addition, the currently available personality inventories tend to overdiagnose BPD in patients with a high level of distress and acuity of symptoms. The diagnosis of a personality disorder in a patient with MPD is made on the basis of the assessment of the "whole" human being. It is based on the presence of a pervasive and relatively inflexible pattern of behaviors that reflects the individual predominant mode of being. The diagnosis of a personality disorder is not made on the basis of personality traits contained within any single alternate personality or groups of personalities. The personality disorders defined by DSM-III-R are a heterogeneous group of conditions whose individual etiologies reflect a complex interplay of constitutional, genetic, environmental, interpersonal, and psychodynamic factors. The interplay is variable and diverse between these determinants of the personality disorders and the traumatic forces that result in the development of a DD. For the Cluster A personality disorders (schizoid, schizotypal, paranoid), there is evidence supporting a relationship with specific psychotic illnesses. The combination of dissociative pathology with these personality disorders commonly results in a greater impairment of reality testing than in either condition alone. The Cluster B personality disorders (histrionic, narcissistic, borderline, antisocial) and Cluster C personality disorders (avoidant, compulsive, dependent, passive-aggressive) are believed to be primarily developmental disturbances. Comorbidity of these personality disorders with MPD involves consideration of the interaction of many developmental processes with the psychological impact of severe childhood trauma. Many MPD patients present with an apparent mixed personality profile consisting of an array of avoidant, compulsive, borderline, narcissistic, dependent, and passive-aggressive features. Although this article explores comorbidity of MPD with each of the personality disorders defined in DSM-III-R individually, it seems likely that a number of posttraumatic personality organizations can be defined that commonly coexist with MPD.(ABSTRACT TRUNCATED AT 400 WORDS)

Borderline Personality Disorder↗
PubMed1999

Incidence of new thromboembolic stroke in persons 62 years and older with chronic atrial fibrillation treated with warfarin versus aspirin.

OBJECTIVE: To investigate the incidence of new thromboembolic (TE) stroke in older persons with chronic atrial fibrillation treated with oral warfarin versus aspirin. DESIGN: In an observational study of 312 older persons with chronic atrial fibrillation, long-term aspirin 325 mg daily was administered to 187 persons, and oral warfarin, in a dose adjusted to maintain the international normalized ratio (INR) between 2.0 and 3.0, was administered to 115 persons. The incidence of new TE stroke was analyzed in persons treated with warfarin versus aspirin at 36 +/- 17 months (1 to 99 months) follow-up. SETTING: A large, long-term healthcare facility. PATIENTS: The patients included 208 women and 104 men, mean age 84 +/- 7 years (range 62 to 101 years). MEASUREMENTS AND MAIN RESULTS: Four of 125 persons (3%) on warfarin stopped taking warfarin compared with four of 187 persons (2%) on aspirin who stopped taking aspirin because of adverse effects (P not significant). In persons with prior stroke, the incidence of new TE stroke was 40% (27 of 67) in persons treated with warfarin versus 81% (56 of 69) in persons treated with aspirin (P < .001). In persons with no prior stroke, the incidence of new TE stroke was 22% (13 of 58) in persons treated with warfarin versus 56% (66 of 118) in persons treated with aspirin (P < .001). The incidence of new TE stroke in all subjects was 32% (40 of 125) in persons treated with warfarin versus 65% (122 of 187) in persons treated with aspirin (P < .001). Cox regression analysis showed that persons taking warfarin had a 76% less chance of developing a new TE stroke than those taking aspirin after controlling the confounding effects of other risk factors. CONCLUSION: In an observational study of older persons with chronic atrial fibrillation, persons treated with oral warfarin to maintain an INR between 2.0 and 3.0 had a significantly lower incidence of new TE stroke than persons treated with oral aspirin 325 mg daily.

Administration, Oral↗
PubMed2005

Two-year prevalence and stability of individual DSM-IV criteria for schizotypal, borderline, avoidant, and obsessive-compulsive personality disorders: toward a hybrid model of axis II disorders.

OBJECTIVE: This study tracked the individual criteria of four DSM-IV personality disorders-borderline, schizotypal, avoidant, and obsessive-compulsive personality disorders-and how they change over 2 years. METHOD: This clinical sample of patients with personality disorders was derived from the Collaborative Longitudinal Personality Disorders Study and included all participants with borderline, schizotypal, avoidant, or obsessive-compulsive personality disorder for whom complete 24-month blind follow-up assessments were obtained (N=474). The authors identified and rank-ordered criteria for each of the four personality disorders by their variation in prevalence and changeability (remission) over time. RESULTS: The most prevalent and least changeable criteria over 2 years were paranoid ideation and unusual experiences for schizotypal personality disorder, affective instability and anger for borderline personality disorder, feeling inadequate and feeling socially inept for avoidant personality disorder, and rigidity and problems delegating for obsessive-compulsive personality disorder. The least prevalent and most changeable criteria were odd behavior and constricted affect for schizotypal personality disorder, self-injury and behaviors defending against abandonment for borderline personality disorder, avoiding jobs that are interpersonal and avoiding potentially embarrassing situations for avoidant personality disorder, and miserly behaviors and strict moral behaviors for obsessive-compulsive personality disorder. CONCLUSIONS: These patterns highlight that within personality disorders the relatively fixed criteria are more trait-like and attitudinal, whereas the relatively intermittent criteria are more behavioral and reactive. These patterns suggest that personality disorders are hybrids of traits and symptomatic behaviors and that the interaction of these elements over time helps determine diagnostic stability. These patterns may also inform criterion selection for DSM-V.

Adolescent↗