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1.
BMC Psychiatry ; 22(1): 459, 2022 07 08.
Artigo em Inglês | MEDLINE | ID: mdl-35804330

RESUMO

BACKGROUND: Both the latest edition of the DSM-5 as well as the new ICD-11 have established a new focus in the diagnosis of personality disorders: the assessment of personality functioning. This recent shift in focus converges with long-standing psychodynamic conceptualizations of personality pathology, particularly Kernberg's object relations model. Although a significant amount of research supports these models in adults, much less is known about the validity of these frameworks in youth. Considering the paucity of brief measures of personality functioning in adolescents, the current study aimed to develop and investigate the validity of the Inventory of Personality Organization for Adolescents-Short Form, a theoretically-informed measure assessing severity and core domains of functioning in adolescents. METHODS: A total sample of N = 525 adolescents aged 13 to 19 years were recruited through a community University-Health Psychology Clinic as current patients (n = 94) or who responded to an online research call (n = 431). RESULTS: Results indicate that a bifactor model provided the best fit to the data and consisted of a general factor reflecting core self-other functioning and three specific factors, representing additional dimensions of personality organization. CONCLUSIONS: A brief 15-item version of the IPO-A was successfully derived for time-efficient screening of personality pathology in youth. Similarities with the ICD-11 framework are discussed.


Assuntos
Transtornos da Personalidade , Personalidade , Adolescente , Adulto , Manual Diagnóstico e Estatístico de Transtornos Mentais , Humanos , Transtornos da Personalidade/diagnóstico , Transtornos da Personalidade/psicologia , Inventário de Personalidade , Psicometria , Reprodutibilidade dos Testes
3.
BMC Health Serv Res ; 21(1): 10, 2021 Jan 04.
Artigo em Inglês | MEDLINE | ID: mdl-33397386

RESUMO

BACKGROUND: Quebec is one of the Canadian provinces with the highest rates of cancer incidence and prevalence. A study by the Rossy Cancer Network (RCN) of McGill university assessed six aspects of the patient experience among cancer patients and found that emotional support is the aspect most lacking. To improve this support, trained patient advisors (PAs) can be included as full-fledged members of the healthcare team, given that PA can rely on their knowledge with experiencing the disease and from using health and social care services to accompany cancer patients, they could help to round out the health and social care services offer in oncology. However, the feasibility of integrating PAs in clinical oncology teams has not been studied. In this multisite study, we will explore how to integrate PAs in clinical oncology teams and, under what conditions this can be successfully done. We aim to better understand effects of this PA intervention on patients, on the PAs themselves, the health and social care team, the administrators, and on the organization of services and to identify associated ethical and legal issues. METHODS/DESIGN: We will conduct six mixed methods longitudinal case studies. Qualitative data will be used to study the integration of the PAs into clinical oncology teams and to identify the factors that are facilitators and inhibitors of the process, the associated ethical and legal issues, and the challenges that the PAs experience. Quantitative data will be used to assess effects on patients, PAs and team members, if any, of the PA intervention. The results will be used to support oncology programs in the integration of PAs into their healthcare teams and to design a future randomized pragmatic trial to evaluate the impact of PAs as full-fledged members of clinical oncology teams on cancer patients' experience of emotional support throughout their care trajectory. DISCUSSION: This study will be the first to integrate PAs as full-fledged members of the clinical oncology team and to assess possible clinical and organizational level effects. Given the unique role of PAs, this study will complement the body of research on peer support and patient navigation. An additional innovative aspect of this study will be consideration of the ethical and legal issues at stake and how to address them in the health care organizations.


Assuntos
Oncologia , Equipe de Assistência ao Paciente , Canadá , Humanos , Avaliação de Resultados da Assistência ao Paciente , Quebeque/epidemiologia
4.
Child Psychiatry Hum Dev ; 49(4): 621-631, 2018 08.
Artigo em Inglês | MEDLINE | ID: mdl-29306982

RESUMO

The aim of this longitudinal study was to examine the course of sexualized behavior problems (SBP) over 2 years in a sample comprised of 104 children aged 2-12, including 62 children with histories of child sexual abuse (CSA). Parents completed questionnaires assessing SBP, internalizing and externalizing difficulties at baseline, as well as 2 years later. In more than half (56.7%) of children with clinically significant SBP at baseline, sexualized behaviors persisted and remained at a clinically significant level over time. In children with CSA, 48.4% presented persistent SBP, 27.4% presented transitory SBP, while 19.4% did not present clinically significant SBP at either time. CSA increased the relative risk of persistent SBP 3.29 times, and for each one-unit increase in scores of externalizing difficulties, the odds of persistent SBP increased by 21%. The findings suggest that SBP consequent to CSA, especially when it co-occurs with externalizing difficulties, is likely to remain at levels warranting clinical intervention.


Assuntos
Abuso Sexual na Infância/psicologia , Transtornos do Comportamento Infantil/psicologia , Comportamento Problema/psicologia , Criança , Pré-Escolar , Feminino , Humanos , Estudos Longitudinais , Masculino , Inquéritos e Questionários
5.
Bull Menninger Clin ; 80(1): 60-79, 2016.
Artigo em Inglês | MEDLINE | ID: mdl-27028339

RESUMO

In Fonagy and Target's (1996, 2000) developmental model of mentalization, play is theorized as a precursor of later mentalization and reflective function (RF); however, the relationship between play and later mentalization and RF has yet to be empirically tested. These processes are particularly important in the context of trauma, but an empirical model of the relationships among mentalization, play, and trauma is currently lacking. The aim of this longitudinal study was to examine whether children's capacity to engage in pretend play, to symbolize, and to make play narratives was associated with later RF in those children. Thirty-nine sexually abused children and 21 nonabused children (aged 3 to 8) participated in the study. The Children's Play Therapy Instrument was used to assess children's free play. Three years after the play assessment, children's RF was assessed using the Child Attachment Interview, coded with the Child and Adolescent Reflective Functioning Scale. Pretend play completion was associated with later other-understanding. Play was also found to mediate the relationship between sexual abuse and children's later mentalization regarding others. These findings are consistent with Fonagy and Target's emphasis on the role of pretend play in the development of a nuanced sense of the qualities of the mind and reality. In sum, the findings lend support to Fonagy and Target's account of playing with reality, and the development of mentalization suggests that it may be more than "fiction." Furthermore, these results suggest that children's ability to create meaningful and coherent play sequences after sexual abuse is associated with the development of a better understanding of their relationships with others. Clinical implications and future directions are discussed.


Assuntos
Jogos e Brinquedos/psicologia , Teoria da Mente/fisiologia , Estudos de Casos e Controles , Criança , Abuso Sexual na Infância/psicologia , Desenvolvimento Infantil/fisiologia , Pré-Escolar , Feminino , Humanos , Lactente , Estudos Longitudinais , Masculino , Narração , Apego ao Objeto , Relações Pais-Filho
6.
Inhal Toxicol ; 13(12): 1151-63, 2001 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-11696878

RESUMO

The use of the additive methylcyclopentadienyl manganese tricarbonyl in unleaded gasoline has resulted in increased attention to the potential toxic effects of manganese (Mn). Hypothetically, people with chronic liver disease may be more sensitive to the adverse neurotoxic effects of Mn. In this work, bioaccumulation of Mn, as well as histopathology and neurobehavioral damage, in end-to-side portacaval anastomosis (PCA) rats exposed to Mn phosphate via inhalation was investigated. During the week before the PCA operation, 4 wk after the PCA operation, and at the end of exposure, the rats were subjected to a locomotor evaluation (day-night activities) using a computerized autotrack system. Then a group of 6 PCA rats (EXP) was exposed to 3050 microg m(-3) (Mn phosphate) for 8 h/day, 5 days/wk for 4 consecutive weeks and compared to a control group (CON), 7 PCA rats exposed to 0.03 microg m(-3). After exposure, the rats were euthanized and Mn content in tissues and organs was determined by neutron activation analysis. The manganese concentrations in blood (0.05 microg/g vs. 0.02 microg/g), lung (1.32 microg/g vs. 0.24 microg/g), cerebellum (0.85 microg/g vs. 0.64 microg/g), frontal cortex (0.87 microg/g vs. 0.61 microg/g), and globus pallidus (3.56 microg/g vs. 1.33 microg/g) were significantly higher in the exposed group compared to the control group (p <.05). No difference was observed in liver, kidney, testes, and caudate putamen between the two groups. Neuronal cell loss was assessed by neuronal cell counts. The loss of cells in globus pallidus and caudate putamen as well as in frontal cortex was significantly higher (p <.05) for the EXP group. Assessment of the locomotor activities did not reveal any significant difference. This study constitutes a first step toward our understanding of the potential adverse effects of Mn in sensitive populations.


Assuntos
Síndromes Neurotóxicas/patologia , Compostos Organometálicos/metabolismo , Compostos Organometálicos/toxicidade , Derivação Portocava Cirúrgica , Administração por Inalação , Animais , Encéfalo/patologia , Ritmo Circadiano/efeitos dos fármacos , Masculino , Manganês/farmacocinética , Atividade Motora/efeitos dos fármacos , Neurônios/efeitos dos fármacos , Neurônios/patologia , Síndromes Neurotóxicas/psicologia , Tamanho da Partícula , Projetos Piloto , Ratos , Ratos Sprague-Dawley
7.
Inhal Toxicol ; 13(7): 623-32, 2001 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-11452358

RESUMO

The primary goal of this study is to determine the effects of Mn exposure via inhalation. The bioaccumulation of Mn in different organs and tissues, the alteration of biochemical parameters, and the locomotor activity were assessed. A group of 26 male Sprague-Dawley rats (E) were exposed to 3750 microg/m(3) of Mn dust for 6 h/day, 5 days/wk for 13 consecutive weeks and compared to a control group of 12 rats (C) exposed to 4 microg/m(3). After exposure, neurological evaluation was carried out for 36 h (a night-day-night cycle) using a computerized autotrack system. Rats were then sacrificed by exsanguination, and Mn content in organs and tissues was determined by neutron activation analysis. Mn concentrations in lung, putamen, and cerebellum were significantly higher in E than in C (0.30 vs. 0.17, 0.89 vs. 0.44, 0.63 vs. 0.48 ppm; p <.01), as well as in the kidney, frontal cortex, and globus pallidus (1.15 vs. 0.96, 0.84 vs. 0.47, 1.28 vs. 0.55 ppm; p <.05). Potassium concentration was significantly lower in E than in C (5.11 vs. 5.79 mmol/L; p <.05), as was alkaline phosphatase (106.9 vs. 129.6 U/L; p <.01). Locomotor activity indicated higher distance covered in the first 12-h period for E (45 383 vs. 36 098 cm; p <.05) and lower resting time in the last 12-h period for E (36 326 vs. 37 393 s; p <.05). This study is the first of several ongoing studies in our laboratory that address health concerns associated with inhalation exposure to different Mn species and to different levels of exposure.


Assuntos
Encéfalo/metabolismo , Rim/metabolismo , Pulmão/metabolismo , Manganês/farmacocinética , Atividade Motora/efeitos dos fármacos , Administração por Inalação , Animais , Poeira , Masculino , Manganês/efeitos adversos , Atividade Motora/fisiologia , Ratos , Ratos Sprague-Dawley , Distribuição Tecidual
8.
Can J Anaesth ; 47(1): 20-6, 2000 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-10626713

RESUMO

PURPOSE: To determine the relative impact of each category-based TEE indication according to the ASA guidelines. METHODS: In 851 patients undergoing cardiac surgery, TEE clinical indications were classified as category I or II according to the ASA guidelines. Category I indications are patients in which TEE is considered useful and category II are those where TEE is potentially useful but indications are less clear. All TEE examinations were reviewed by two anesthesiologists with advanced training in TEE. For each patient, the clinical impact of TEE in the clinical management was assessed using five criteria: 1) change of medical therapy; 2) change in the surgical procedure; 3) confirmation of a suspected diagnosis; 4) positioning of an intravascular device, and 5) substitute to a pulmonary artery catheter (PAC). RESULTS: TEE had greater utility in category I than in category II indications (15/53 (28%) vs. 110/798 (14%) respectively) (P<0.01). The nature of the clinical impact was as follows: modification of medical therapy in 67/125 (53%), modification of planned surgical intervention in 38/125 (30%), confirmation of a diagnosis in 34/125 (27%). The impact on therapy was higher in complex surgical procedures (39%) than in valvular replacement (19%) (P<0.01) and coronary artery bypass surgery (10%) (P<0.001). CONCLUSIONS: Our findings validate the usefulness of the ASA practice guidelines demonstrating a greater impact of TEE on clinical management for category I indications than for category II. TEE also had a greater clinical impact in complex surgical procedures and in valvular replacement.


Assuntos
Procedimentos Cirúrgicos Cardíacos , Ecocardiografia Transesofagiana , Monitorização Intraoperatória , Humanos , Estudos Prospectivos
9.
Sci Total Environ ; 239(1-3): 165-71, 1999 Oct 01.
Artigo em Inglês | MEDLINE | ID: mdl-10570841

RESUMO

Methylcyclopentadienyl manganese tricarbonyl (MMT) is an organic manganese (Mn) compound currently added to unleaded gasoline in Canada. It has been suggested that the combustion of MMT containing Mn could cause various deleterious health effects in animals and humans at very high concentrations. This study evaluates the potential of dandelions (Taraxacum officinale) as bioindicators of Mn environmental contamination. Samples were picked at three different distances from a highway: a highly exposed site (E++), a lightly exposed site (E+) and a control site (E), located respectively at 10, 50 and 100 m. The total Mn, Mg, Ca, Al, Fe and Zn concentrations were measured in the soils and in the plants (flower, stem, leaves and root) by neutron activation analysis. Exchangeable Mn was measured in soils by atomic absorption spectrophotometry. Mn concentrations of the different parts of the plant and exchangeable Mn in soils were not correlated with distance from the roadway and, thus, do not seem to be a sensitive indicator of Mn contamination. Soil Mn concentrations were correlated with distance from the roadway. This suggests the hypothesis that the environmental fate of Mn from MMT sources could be associated with an increased total Mn in soil but does not lead to an increase in exchangeable Mn.


Assuntos
Poluentes Atmosféricos/análise , Monitoramento Ambiental/métodos , Gasolina/análise , Manganês/análise , Compostos Organometálicos/análise , Plantas/química , Canadá , Exposição Ambiental/análise , Manganês/metabolismo , Compostos Organometálicos/química , Plantas/efeitos dos fármacos , Plantas/metabolismo , Poluentes do Solo/análise
10.
Gastroenterology ; 117(3): 640-4, 1999 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-10464140

RESUMO

BACKGROUND & AIMS: Manganese (Mn) deposition could be responsible for the T(1)-weighted magnetic resonance signal hyperintensities observed in cirrhotic patients. These experiments were designed to assess the regional specificity of the Mn increases as well as their relationship to portal-systemic shunting or hepatobiliary dysfunction. METHODS: Mn concentrations were measured in (1) brain samples from basal ganglia structures (pallidum, putamen, caudate nucleus) and cerebral cortical structures (frontal, occipital cortex) obtained at autopsy from 12 cirrhotic patients who died in hepatic coma and from 12 matched controls; and from (2) brain samples (caudate/putamen, globus pallidus, frontal cortex) from groups (n = 8) of rats either with end-to-side portacaval anastomosis, with biliary cirrhosis, or with fulminant hepatic failure as well as from sham-operated and normal rats. RESULTS: Mn content was significantly increased in frontal cortex (by 38%), occipital cortex (by 55%), pallidum (by 186%), putamen (by 66%), and caudate (by 54%) of cirrhotic patients compared with controls. Brain Mn content did not correlate with patient age, etiology of cirrhosis, or history of chronic hepatic encephalopathy. In cirrhotic and portacaval-shunted rats, Mn content was increased in pallidum (by 27% and 57%, respectively) and in caudate/putamen (by 57% and 67%, respectively) compared with control groups. Mn concentration in pallidum was significantly higher in portacaval-shunted rats than in cirrhotic rats. No significant changes in brain Mn concentrations were observed in rats with acute liver failure. CONCLUSIONS: These findings suggest that brain Mn deposition results both from portal-systemic shunting and from liver dysfunction.


Assuntos
Gânglios da Base/metabolismo , Cirrose Hepática/metabolismo , Manganês/metabolismo , Derivação Portossistêmica Cirúrgica , Animais , Feminino , Encefalopatia Hepática/metabolismo , Humanos , Cirrose Hepática Experimental/metabolismo , Cirrose Hepática Experimental/cirurgia , Masculino , Pessoa de Meia-Idade , Ratos , Ratos Sprague-Dawley
11.
Ann Chir ; 52(8): 834-9, 1998.
Artigo em Francês | MEDLINE | ID: mdl-9846437

RESUMO

UNLABELLED: Results of cardiac surgery in renal transplant patients are not well documented. Immunosuppression as well as associated conditions in these patients, and the increased susceptibility of the renal allograft to the extracorporeal circulation (ECC) may alter the prognosis of renal transplant patients submitted to cardiac surgery. To evaluate this hypothesis, we reviewed the files of 24 patients (18 Male, 6 Female; age: 49 +/- 12 years) operated under ECC between 1978 and 1997. Twenty patients underwent coronary artery bypass surgery, 5 patients a valve replacement procedure (aortic and/or mitral), and one patient necessitated a Cabrol procedure for an ascending aorta aneurysm. Preoperatively, the majority of patients were in functional class (NYHA) IV (16 patients), and ejection fraction was > 50% in 18 patients. Two operative deaths secondary to cardiogenic shock were encountered. Five patients (23%) were reoperated for bleeding; 5 patients (23%) sustained a major infection (2 pneumonias, 2 mediastinitis and one wound infection) resulting in death in one patient; 5 patients (23%) were treated for arythmia; and 2 patients (9%) suffered a perioperative myocardial infarction. Serum creatinine levels did not increase significantly during hospitalization (p = 0.41 between extreme values). Mean follow-up (41 +/- 28 months) of the 20 survivors revealed recurrent angina in 5 patients and late death in 4 patients, cardiac-related in 3 cases. CONCLUSION: Cardiac surgery in renal transplant patients is subjected to a high morbidity and mortality. Mid-term prognosis is reserved especially in presence of associated conditions.


Assuntos
Procedimentos Cirúrgicos Cardíacos , Transplante de Rim , Angina Pectoris/etiologia , Aneurisma Aórtico/cirurgia , Valva Aórtica/cirurgia , Arritmias Cardíacas/etiologia , Procedimentos Cirúrgicos Cardíacos/efeitos adversos , Procedimentos Cirúrgicos Cardíacos/métodos , Causas de Morte , Ponte de Artéria Coronária , Creatinina/sangue , Circulação Extracorpórea , Feminino , Seguimentos , Implante de Prótese de Valva Cardíaca , Humanos , Terapia de Imunossupressão , Masculino , Mediastinite/etiologia , Pessoa de Meia-Idade , Valva Mitral/cirurgia , Infarto do Miocárdio/etiologia , Pneumonia/etiologia , Hemorragia Pós-Operatória/etiologia , Hemorragia Pós-Operatória/cirurgia , Prognóstico , Recidiva , Reoperação , Estudos Retrospectivos , Choque Cardiogênico/etiologia , Volume Sistólico , Infecção da Ferida Cirúrgica/etiologia
12.
J Nerv Ment Dis ; 186(5): 269-75, 1998 May.
Artigo em Inglês | MEDLINE | ID: mdl-9612443

RESUMO

Standard family history and family study methods were used with 650 first- and 1174 second-degree biological relatives of 133 adolescents who were studied initially 6 to 8 years ago. They included 69 prepubertal children considered at risk for suicidal behavior and 64 prepubertal children selected from the community. This study aimed to identify relationships between family psychopathology and adolescents' lifetime history of suicidal states. Family discord, suicide attempts of mother, and substance abuse of mothers and fathers were significantly more prevalent among adolescents with lifetime history of a suicide attempt. Mothers' and fathers' substance abuse was associated with adolescents' lifetime history of suicidal ideation. Results highlight importance of evaluating and treating family psychopathology to reduce risk for youth suicidal states.


Assuntos
Família , Transtornos Mentais/epidemiologia , Suicídio/psicologia , Adolescente , Adulto , Alcoolismo/diagnóstico , Alcoolismo/epidemiologia , Alcoolismo/genética , Transtorno da Personalidade Antissocial/diagnóstico , Transtorno da Personalidade Antissocial/epidemiologia , Transtorno da Personalidade Antissocial/genética , Criança , Pai/estatística & dados numéricos , Feminino , Hospitalização , Humanos , Masculino , Transtornos Mentais/diagnóstico , Transtornos Mentais/genética , Pessoa de Meia-Idade , Mães/estatística & dados numéricos , Prevalência , Estudos Prospectivos , Fatores de Risco , Transtornos Relacionados ao Uso de Substâncias/diagnóstico , Transtornos Relacionados ao Uso de Substâncias/epidemiologia , Suicídio/estatística & dados numéricos , Tentativa de Suicídio/psicologia , Tentativa de Suicídio/estatística & dados numéricos , Prevenção do Suicídio
13.
J Psychother Pract Res ; 7(3): 196-207, 1998.
Artigo em Inglês | MEDLINE | ID: mdl-9631341

RESUMO

The Children's Play Therapy Instrument (CPTI), its development, and reliability studies are described. The CPTI is a new instrument to examine a child's play activity in individual psychotherapy. Three independent raters used the CPTI to rate eight videotaped play therapy vignettes. Results were compared with the authors' consensual scores from a preliminary study. Generally good to excellent levels of interrater reliability were obtained for the independent raters on intraclass correlation coefficients for ordinal categories of the CPTI. Likewise, kappa levels were acceptable to excellent for nominal categories of the scale. The CPTI holds promise to become a reliable measure of play activity in child psychotherapy. Further research is needed to assess discriminant validity of the CPTI for use as a diagnostic tool and as a measure of process and outcome.


Assuntos
Comportamento Infantil/classificação , Observação/métodos , Ludoterapia/métodos , Psicometria/métodos , Afeto/classificação , Análise de Variância , Criança , Desenvolvimento Infantil , Cognição/classificação , Humanos , Variações Dependentes do Observador , Avaliação de Resultados em Cuidados de Saúde/métodos , Interpretação Psicanalítica , Psicometria/normas , Reprodutibilidade dos Testes , Gravação de Videoteipe
14.
J Cardiothorac Vasc Anesth ; 12(1): 16-21, 1998 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-9509351

RESUMO

OBJECTIVE: Pulsed Doppler measurement of pulmonary venous flow (PVF) in the left superior pulmonary vein has been suggested as a noninvasive method to evaluate pulmonary capillary wedge pressure (PCWP). In previous studies, PVF was measured at end-expiration, and it is unknown to what extent PVF is affected by the respiratory cycle. It is hypothesized that phasic variations of PVF during mechanical ventilation may be used to estimate PCWP. DESIGN: Prospective clinical study. SETTING: Tertiary care university hospital. PARTICIPANTS: Thirty patients undergoing elective cardiac surgery. INTERVENTIONS: At multiple intervals during the surgery, the PVF was measured with transesophageal pulsed Doppler echocardiography, and measurements of PCWP and airway pressure were simultaneously obtained. MEASUREMENTS AND RESULTS: Components of PVF evaluated were the systolic (X), diastolic (Y), and atrial (Z) waves with their velocity-time integrals (VTI). The systolic fraction (SF = VTI X/[VTI X + VTI Y]) and respiratory variations of each component of PVF were determined and compared with PCWP. There was a greater respiratory variation of the X wave (X expiratory-X inspiratory/X expiratory) in patients with PCWP < 18 mmHg than in patients with PCWP > or = 18 mmHg (0.19 +/- 0.19 v 0.14 +/- 0.13, respectively, p < 0.01). PVF components measured at end-expiration that related best with PCWP were the X/Y peak velocities (r = -0.53), VTI X/VTI Y ratio (r = -0.42), and the SF (r = -0.49). When measured during end-inspiration, the relation of the X/Y ratio, VTI X/VTI Y, and SF with the PCWP were r = -0.54, r = -0.41, and r = -0.50, respectively. CONCLUSIONS: It has been documented that PVF velocity is influenced by the respiratory cycle during mechanical ventilation in patients undergoing cardiac surgery, and the magnitude of this variation is influenced by PCWP. However, it is not actually possible to predict PCWP accurately using these findings. Further studies are needed in which preload is varied acutely to confirm the usefulness of the results.


Assuntos
Ecocardiografia Doppler de Pulso , Ecocardiografia Transesofagiana , Veias Pulmonares/fisiologia , Pressão Propulsora Pulmonar , Respiração Artificial , Respiração , Adulto , Idoso , Ponte de Artéria Coronária , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Estudos Prospectivos
15.
Metab Brain Dis ; 13(4): 311-7, 1998 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-10206823

RESUMO

Amongst the potential neurotoxins implicated in the pathogenesis of hepatic encephalopathy, manganese emerges as a new candidate. In patients with chronic liver diseases, manganese accumulates in blood and brain leading to pallidal signal hyperintensity on T1-weighted Magnetic Resonance (MR) Imaging. Direct measurements in globus pallidus obtained at autopsy from cirrhotic patients who died in hepatic coma reveal 2 to 7-fold increases of manganese concentration. The intensity of pallidal MR images correlates with blood manganese and with the presence of extrapyramidal symptoms occurring in a majority of cirrhotic patients. Liver transplantation results in normalization of pallidal MR signals and disappearance of extrapyramidal symptoms whereas transjugular intrahepatic portosystemic shunting induces an increase in pallidal hyperintensity with a concomitant deterioration of neurological dysfunction. These findings suggest that the toxic effects of manganese contribute to extrapyramidal symptoms in patients with chronic liver disease. The mechanisms of manganese neurotoxicity are still speculative, but there is evidence to suggest that manganese deposition in the pallidum may lead to dopaminergic dysfunction. Future studies should be aimed at evaluating the effects of manganese chelation and/or of treatment of the dopaminergic deficit on neurological symptomatology in these patients.


Assuntos
Encefalopatia Hepática/etiologia , Manganês/fisiologia , Encéfalo/metabolismo , Doença Crônica , Encefalopatia Hepática/metabolismo , Humanos , Cirrose Hepática/metabolismo , Cirrose Hepática/fisiopatologia , Hepatopatias/metabolismo , Manganês/metabolismo , Sistema Nervoso/fisiopatologia
16.
Psychoanal Q ; 64(4): 717-45, 1995 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-8584597

RESUMO

A comprehensive and descriptive approach to counter-transference phenomena is proposed. Three types of mental activity are distinguished: the objective-rational attitude is an adaptive, relatively nondefensive mode of observation; the reactive mental state corresponds to the classical notion of unconscious counter-transference as an obstacle and a defense; by contrast the reflective attitudes involve preconscious and conscious psychical activity. Reflective activity involves four phases: (1) during emergence, an inner reaction appears; (2) immersion, through a regressive exploration, leads to introjective identification; (3) integrative elaboration involves a shift in cathexis, more distance, and an organization of the regressed contents, while (4) an interpretation is forming in mind. Three case examples from the literature serve to illustrate.


Assuntos
Contratransferência , Psicanálise , Interpretação Psicanalítica , Humanos , Terapia Psicanalítica
17.
Ann Thorac Surg ; 60(3): 646-50, 1995 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-7677493

RESUMO

BACKGROUND: Among the factors involved in the early complications of lung transplantation is the ischemia-reperfusion syndrome related to a warm reperfusion in ischemic lungs. METHODS: Using an isolated rabbit lung preparation perfused with whole blood, we studied the effects of cold ischemia followed by a warm reperfusion on pulmonary vascular responses to reproduce experimentally the conditions encountered during lung transplantation. RESULTS: Pulmonary vascular responses to acetylcholine were rapidly altered by warm ischemia (relaxation of 7% versus 60% in controls). Conversely, relaxation was maintained even after a prolonged cold ischemic storage (maximal relaxation of 57% at 48 hours). Warm reperfusion in ischemic lungs induced major alteration of endothelium-dependent relaxation (maximal relaxation of 13% at 4 hours). The addition of L-arginine or pentoxifylline during reperfusion prevented the pulmonary endothelial alteration resulting from warm reperfusion. CONCLUSION: These data suggest that treatments aimed at maintaining intact functional endothelium reduce ischemia-reperfusion injury in transplanted lungs.


Assuntos
Arginina/uso terapêutico , Endotélio Vascular/efeitos dos fármacos , Transplante de Pulmão/efeitos adversos , Pulmão/irrigação sanguínea , Pentoxifilina/uso terapêutico , Traumatismo por Reperfusão/prevenção & controle , Acetilcolina/farmacologia , Animais , Sangue , Ponte Cardiopulmonar/efeitos adversos , Temperatura Baixa , Endotélio Vascular/lesões , Isquemia/fisiopatologia , Pulmão/efeitos dos fármacos , Lesão Pulmonar , Músculo Liso Vascular/efeitos dos fármacos , Músculo Liso Vascular/lesões , Artéria Pulmonar/efeitos dos fármacos , Artéria Pulmonar/fisiopatologia , Coelhos , Reprodutibilidade dos Testes , Vasoconstrição/efeitos dos fármacos , Vasodilatação/efeitos dos fármacos
18.
J Am Acad Child Adolesc Psychiatry ; 33(8): 1087-97, 1994 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-7982859

RESUMO

OBJECTIVE: This paper reports comprehensive data on psychiatric symptoms and disorders and medical problems of first- and second-degree biological relatives of prepubertal children who have contemplated or attempted suicide. METHOD: Standard family study and family history interview techniques were used to obtain information about psychopathology and medical illness in 488 first- and 1,062 second-degree relatives of 25 child psychiatric inpatients who reported suicide attempts, 28 child psychiatric inpatients who contemplated suicide, 16 nonsuicidal child inpatients, and 54 normal children. RESULTS: Suicidal behavior in children was associated with suicidal behavior in their families, although no first-degree relatives committed suicide. More first-degree relatives of child suicide attempters, compared to first-degree relatives of normal children, had antisocial personality disorder, assaultive behavior, and substance abuse. Mood disorders in first-degree relatives were not associated with child suicidal behavior. No significant associations were identified for psychopathology of second-degree relatives and child suicidal behavior. CONCLUSIONS: The results suggest the importance of evaluating familial psychopathology during assessments of suicidal children. Self-directed and externally directed violence, antisocial personality disorder, and substance abuse of relatives of suicidal children should be studied to elucidate the etiology of youth suicidal behavior.


Assuntos
Filho de Pais com Deficiência/psicologia , Transtorno Depressivo/genética , Desenvolvimento da Personalidade , Tentativa de Suicídio/psicologia , Suicídio/psicologia , Adolescente , Adulto , Idoso , Criança , Transtorno Depressivo/psicologia , Feminino , Seguimentos , Humanos , Masculino , Pessoa de Meia-Idade , Admissão do Paciente , Fatores de Risco , Tentativa de Suicídio/prevenção & controle , Prevenção do Suicídio
19.
Can J Surg ; 35(2): 155-7, 1992 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-1562924

RESUMO

Percutaneous mitral valvuloplasty (PMV) has been proposed as a safe alternative to open mitral commissurotomy (OMC) or mitral valvular replacement (MVR) in selected patients with symptomatic mitral stenosis (MS). Among 146 consecutive patients who underwent PMV between March 1987 and April 1990, 18 (12%) needed urgent corrective surgery after the procedure. Of these 18 patients 16 were women and 2 were men. Three patients were of clinical incapacity class II and 15 of class III and were at an intermediate risk for PMV according to the echo score (mean score 8). The indications for corrective surgery were massive mitral regurgitation owing to tearing of the anterior leaflet (six patients), cardiac perforation (left atrium in two patients, left ventricle in three patients), technical failure of PMV (five patients) and severe atrial shunting (two patients). Operative procedures included MVR (14 patients), cardiac wound suturing only (3 patients) and OMC (1 patient). Operative mortality (within 30 days) was 22% (4 of 18 patients), distributed equally among patients needing urgent or elective surgery. When compared with the operative death rate after OMC (0%) and MVR (3.1%) as the initial treatment for MS during the same period, the rate for cardiac operation after failed or complicated PMV (22%) was significantly higher (p = 0.004). Therefore, optimal patient selection and aggressive corrective surgery are necessary to decrease PMV-related morbidity and death.


Assuntos
Cateterismo , Estenose da Valva Mitral/terapia , Valva Mitral/cirurgia , Adulto , Idoso , Feminino , Hemodinâmica , Humanos , Masculino , Pessoa de Meia-Idade , Estenose da Valva Mitral/fisiopatologia , Estenose da Valva Mitral/cirurgia
20.
Ann Chir ; 46(9): 851-8, 1992.
Artigo em Francês | MEDLINE | ID: mdl-1284364

RESUMO

Between December 1984 and September 1991, a total of 68 palliative esophageal intubations were performed in 57 patients. The mean age was 64 years, there were 40 males and 17 females. The more frequent causes of esophageal obstruction were malignant tumors of the esophagus (49%), lung (23%) and cardia (19%). Total dysphagia (24.5%), dysphagia to liquids (47%) and esophagotracheal aspiration (14%) were present in these patients. In 65% of patients insertion of the prosthesis was the first attempt at palliation, in the remaining patients it followed the failure of another type of palliation. The decision to palliate esophageal obstruction was established preoperatively in 86% of patients, in the remaining 14% it was decided at the time of surgery. The intubation by pulsion (Atkinson) [1] was successful in 57% of patients and by traction (Celestin) [2] in 86% of patients. The associated morbidity was 36% for the Atkinson prosthesis and 13% for the Celestin prosthesis, although the latter required a laparotomy. The in hospital mortality was 12.5%. The mean survival was 85 days. A normal or semi-solid diet was tolerated by over 60% of patients following intubation. Palliation of esophageal obstruction by intubation improves the quality of life but is associated with a high morbidity.


Assuntos
Cárdia/fisiopatologia , Transtornos de Deglutição/terapia , Neoplasias Esofágicas/cirurgia , Esôfago , Intubação/métodos , Transtornos de Deglutição/diagnóstico por imagem , Transtornos de Deglutição/etiologia , Transtornos de Deglutição/mortalidade , Neoplasias Esofágicas/complicações , Perfuração Esofágica/etiologia , Feminino , Humanos , Intubação/efeitos adversos , Neoplasias Pulmonares/complicações , Neoplasias Pulmonares/diagnóstico por imagem , Masculino , Pessoa de Meia-Idade , Cuidados Paliativos , Complicações Pós-Operatórias , Próteses e Implantes , Radiografia , Neoplasias Gástricas/complicações
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