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Vöhringer PA, Barroilhet SA, Alvear K, Medina S, Espinosa C, Alexandrovich K, Riumallo P, Leiva F, Hurtado ME, Cabrera J, Sullivan M, Holtzman N, Ghaemi SN. The International Mood Network (IMN) Nosology Project: differentiating borderline personality from bipolar illness. Acta Psychiatr Scand 2016; 134:504-510. [PMID: 27611723 DOI: 10.1111/acps.12643] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 08/22/2016] [Indexed: 11/27/2022]
Abstract
OBJECTIVE The differential diagnosis of bipolar illness vs. borderline personality is controversial. Both conditions manifest impulsive behavior, unstable interpersonal relationships, and mood symptoms. This study examines whether and which mood clinical features can differentiate between both conditions. METHOD A total of 260 patients (mean ± standard deviation age 41 ± 13 years, 68% female) attending to a mood clinic were examined for diagnosis of bipolar illness and borderline personality disorder using SCID-I, SCID-II, and clinical mood criteria extracted from Mood Disorder Questionnaire (MDQ). They were analyzed using diagnoses as dependent variables. Predictors of bipolar and borderline diagnoses were identified by multivariable logistic regressions, and predictive validity of models was assessed using ROC curve analysis. RESULTS Bipolar illness was strongly predicted by elevated mood (OR = 4.02, 95% CI: 1.80-9.15), increased goal-directed activities (OR = 3.90, 95% CI: 1.73-8.96), and episodicity of mood symptoms (OR = 3.48, 95% CI 1.49-8.39). This triad model predicted bipolar illness with 88.7% sensitivity, 81.4% specificity, and obtained an auROC of 0.91 (95% CI: 0.76-0.96) and a positive predictive value of 85.1%. For borderline personality disorder, only female gender was a statistically significant predictor (OR = 3.41, 95% CI: 1.29-13.7), and the predictive model obtained an auROC of 0.67 (95% CI: 0.53-0.74). CONCLUSION In a mood disorder clinic setting, manic criteria and episodic mood course distinguished bipolar illness from borderline personality disorder.
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Affiliation(s)
- P A Vöhringer
- Unidad de Trastornos del Ánimo, Clínica Psiquiátrica Universitaria, Hospital Clínico Universidad de Chile, Facultad de Medicina Universidad de Chile, Santiago, Chile.,Clínica de Trastornos del Ánimo, Instituto Psiquiátrico "Dr. José Horwitz B", Santiago, Chile.,Mood Disorders Program, Tufts Medical Center, Boston, MA, USA.,Millenium Institute for Depression and Personality Research, Ministry of Economy, Macul, Santiago, Chile
| | - S A Barroilhet
- Mood Disorders Program, Tufts Medical Center, Boston, MA, USA.,Escuela de Psicología, Universidad de los Andes, Santiago, Chile.,Unidad de Psiquiatría de Enlace, Clínica Psiquiátrica Universitaria, Hospital Clínico Universidad de Chile, Facultad de Medicina Universidad de Chile, Santiago, Chile
| | - K Alvear
- Clínica de Trastornos del Ánimo, Instituto Psiquiátrico "Dr. José Horwitz B", Santiago, Chile.,Universidad Diego Portales, Santiago, Chile
| | - S Medina
- Clínica de Trastornos del Ánimo, Instituto Psiquiátrico "Dr. José Horwitz B", Santiago, Chile
| | - C Espinosa
- Clínica de Trastornos del Ánimo, Instituto Psiquiátrico "Dr. José Horwitz B", Santiago, Chile
| | - K Alexandrovich
- Clínica de Trastornos del Ánimo, Instituto Psiquiátrico "Dr. José Horwitz B", Santiago, Chile
| | - P Riumallo
- Clínica de Trastornos del Ánimo, Instituto Psiquiátrico "Dr. José Horwitz B", Santiago, Chile
| | - F Leiva
- Clínica de Trastornos del Ánimo, Instituto Psiquiátrico "Dr. José Horwitz B", Santiago, Chile
| | - M E Hurtado
- Clínica de Trastornos del Ánimo, Instituto Psiquiátrico "Dr. José Horwitz B", Santiago, Chile
| | - J Cabrera
- Clínica de Trastornos del Ánimo, Instituto Psiquiátrico "Dr. José Horwitz B", Santiago, Chile
| | - M Sullivan
- Mood Disorders Program, Tufts Medical Center, Boston, MA, USA
| | - N Holtzman
- Mood Disorders Program, Tufts Medical Center, Boston, MA, USA
| | - S N Ghaemi
- Mood Disorders Program, Tufts Medical Center, Boston, MA, USA
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Amato D, Miranda G, Leaños B, Alcántara G, Hurtado ME, Paniagua R. Staphylococcal peritonitis in continuous ambulatory peritoneal dialysis: colonization with identical strains at exit site, nose, and hands. Am J Kidney Dis 2001; 37:43-48. [PMID: 11136166 DOI: 10.1053/ajkd.2001.20576] [Citation(s) in RCA: 33] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
To evaluate the relationship of nasal or skin Staphylococcus carrier status with identical strains and the development of staphylococcal peritonitis, 59 consecutive peritonitis episodes in patients using a twin-bag system for continuous ambulatory peritoneal dialysis from a single dialysis center were prospectively studied. Dialysate samples and exit-site, nose, and nail swabs from patients and their dialysis partners were obtained on the same day for culture. When bacteria belonging to the same species of the Staphylococcus genus were isolated from dialysate and at least one extraperitoneal anatomic site, pulsed-field gel electrophoresis typing was performed. The bacterial strains isolated from catheter exit site, nose, or nails of each patient and his or her dialysis partner were classified as identical or different. Twenty-seven of the 59 peritonitis episodes (46%) were caused by staphylococci. Nineteen of these 27 patients carried the same Staphylococcus species causing the peritonitis episode at the exit site, nose, or nails, but only 17 patients (63%) carried an identical strain. Four of 5 dialysis partners carried the same Staphylococcus species causing the peritonitis episode at nose or nails, but the strain was identical for only 3 dialysis partners (60%). Four patients and 1 dialysis partner carried unrelated strains of the Staphylococcus species causing the peritonitis episode. The most frequently colonized site with strains identical to that causing the peritonitis episode was the catheter exit site, followed by nose and nails. This finding may be clinically relevant because eradication of Staphylococcus aureus colonizing the catheter exit site may be more important and have a greater likelihood of success than maneuvers directed to more distant locations.
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Affiliation(s)
- D Amato
- Unidad de Investigación Médica en Enfermedades Nefrológicas, Hospital de Especialidades, Centro Médico Nacional Siglo XXI, Instituto Mexicano del Seguro Social, Av Cuauhtémoc 330, Colonia Doctores, Mexico City 06725, Mexico
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Hurtado A, Escudero E, Stromquist CS, Urcia J, Hurtado ME, Gretch D, Watts D, Russell K, Asato C, Johnson RJ. Distinct patterns of glomerular disease in Lima, Peru. Clin Nephrol 2000; 53:325-32. [PMID: 11305805] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/19/2023] Open
Abstract
AIM We performed both a retrospective and prospective study to elucidate the types of glomerular diseases present in adults in Lima, Peru. MATERIAL AND METHODS In the retrospective study, we analyzed 1,263 renal biopsies over a 10-year period (1985 -1995) that were processed at a central reference renal pathology laboratory in Lima. 101 cases were examined in the prospective study. RESULTS The most common glomerular diseases observed were those due to systemic lupus erythematosus (30.2%), membranoproliferative glomerulonephritis (MPGN, 14.8%), and focal and segmental glomerulosclerosis (FSGS, 13.9%). Although mesangial-proliferative nephritis was observed in 9.5% of cases, IgA nephropathy was rare (0.9%). Examination of the year to year frequency showed that MPGN has tended to decrease in frequency with time whereas FSGS has been increasing. Although there is known to be a high frequency of infections in Peru, only 4.2% of the cases in the retrospective study were associated with infection. Furthermore, in the prospective study, only one case of hepatitis C and no cases of hepatitis B viral infection were detected, including in the 11 cases of MPGN observed. CONCLUSION We conclude that the epidemiology of glomerular disease in Lima, Peru, is distinct from most areas of the world, but has similarities to certain regions in Africa, in that MPGN is common whereas IgA nephropathy appears to be rare. Further studies are necessary to elucidate the reasons why the patterns of glomerular disease are different from that observed in other parts of the world.
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Affiliation(s)
- A Hurtado
- Department of Pathology, Hospital Loayza, Cayetano Heredia University, Lima, Peru
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Hurtado A, Asato C, Escudero E, Stromquist CS, Urcia J, Hurtado ME, de La Cruz S, Wener MH, Zavala R, Johnson RJ. Clinicopathologic correlations in lupus nephritis in Lima, Peru. Nephron Clin Pract 1999; 83:323-30. [PMID: 10575294 DOI: 10.1159/000045424] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022] Open
Abstract
BACKGROUND We assessed whether immunohistologic markers for glomerular or tubulointerstitial injury might provide better correlations with ongoing renal function and disease activity as compared with the WHO classification or the NIH activity and chronicity indices in lupus nephritis. METHODS Thirty-three patients with clinically defined systemic lupus underwent renal biopsy over a 1-year period at Hospital Loayza in Lima, Peru. Biopsy specimens were evaluated for macrophages, proliferating cells, alpha-actin expression, and type IV collagen deposition in both glomeruli and the tubulointerstitium and the results compared with the current WHO and NIH classifications in relation to the clinical presentation. RESULTS Patients with WHO class IV lupus nephritis were more likely to have lower serum complements, greater proteinuria and hematuria, and worse renal function. An elevated NIH activity index correlated with microhematuria, proteinuria, and impaired renal function, whereas an elevated chronicity index correlated with renal function, hypertension, and microhematuria, but not with proteinuria. The presence of glomerular macrophages correlated with both glomerular alpha-actin expression and type IV collagen deposition, but did not correlate with renal function or proteinuria. In contrast, interstitial macrophages correlated not only with interstitial collagen deposition and myofibroblast accumulation, but also correlated with both renal function and the presence of nephrotic syndrome. CONCLUSIONS Both the WHO classification and the NIH activity/chronicity indices correlate with clinical manifestations of lupus nephritis. While glomerular macrophage accumulation correlates with mesangial cell activation (alpha-actin expression) and collagen deposition, and interstitial macrophage accumulation correlates with interstitial fibroblast activation and collagen deposition, only interstitial macrophages correlate with renal function. Of particular interest will be future studies to determine whether these markers correlate with the prognosis.
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Affiliation(s)
- A Hurtado
- Division of Nephrology, Hospital Loayza, Cayetano Heredia University, Lima, Peru
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Monteón F, Correa-Rotter R, Paniagua R, Amato D, Hurtado ME, Medina JL, Salcedo RM, García E, Matos M, Kaji J, Vázquez R, Ramos A, Schettino MA, Moran J. Prevention of peritonitis with disconnect systems in CAPD: a randomized controlled trial. The Mexican Nephrology Collaborative Study Group. Kidney Int 1998; 54:2123-8. [PMID: 9853278 DOI: 10.1046/j.1523-1755.1998.00190.x] [Citation(s) in RCA: 61] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
BACKGROUND Recently, disconnect systems for CAPD that are associated with a reduced frequency of peritonitis have been introduced. Our objective was to compare the incidence of peritonitis using three current CAPD systems in a high-risk population with low educational and socioeconomic levels, and high prevalence of malnutrition. METHODS In a prospective controlled trial, 147 patients commencing CAPD were randomly assigned to one of three groups: 29 to the conventional, 57 to the Y-set, and 61 to the twin bag systems. The number of peritonitis episodes was registered, and patients were followed up for an average of 11.3 months. RESULTS The average peritonitis-free interval for the conventional group was 6.1 months, for the Y system was 12.0 months, and for the twin bag was 24.8 months (P < 0.001). By multivariate analysis, the only factor associated with peritonitis was the CAPD system. Peritonitis-related hospitalization was 5.3 +/- 2.0, 2.7 +/- 1.0, and 1.5 +/- 0.9 days/patient/year in the conventional, Y system, and twin bag groups, respectively. The cost per bag was similar for the conventional and Y system, but higher for the twin bag. However, the total costs of treatment (pesos/patient/year) were lower for twin bag (62,159 for the conventional, 70,275 for the Y system, and 54,387 for the twin bag), due to the lower peritonitis incidence and associated hospitalizations. CONCLUSIONS Y system and twin bag use was associated with a reduction of 50 and 75% peritonitis incidence, respectively, in patients on CAPD. The cost of the twin bag was actually lower, because of savings from a decreased usage of antibiotics and fewer hospitalizations.
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