Your browser doesn't support javascript.
loading
Mostrar: 20 | 50 | 100
Resultados 1 - 20 de 24
Filtrar
2.
Contemp Clin Trials ; 142: 107564, 2024 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-38704119

RESUMO

INTRODUCTION: Women with atypical hyperplasia (AH) or lobular carcinoma in situ (LCIS) have a significantly increased risk of breast cancer, which can be substantially reduced with antiestrogen therapy for chemoprevention. However, antiestrogen therapy for breast cancer risk reduction remains underutilized. Improving knowledge about breast cancer risk and chemoprevention among high-risk patients and their healthcare providers may enhance informed decision-making about this critical breast cancer risk reduction strategy. METHODS/DESIGN: We are conducting a cluster randomized controlled trial to evaluate the effectiveness and implementation of patient and provider decision support tools to improve informed choice about chemoprevention among women with AH or LCIS. We have cluster randomized 26 sites across the U.S. through the SWOG Cancer Research Network. A total of 415 patients and 200 healthcare providers are being recruited. They are assigned to standard educational materials alone or combined with the web-based decision support tools. Patient-reported and clinical outcomes are assessed at baseline, after a follow-up visit at 6 months, and yearly for 5 years. The primary outcome is chemoprevention informed choice after the follow-up visit. Secondary endpoints include other patient-reported outcomes, such as chemoprevention knowledge, decision conflict and regret, and self-reported chemoprevention usage. Barriers and facilitators to implementing decision support into clinic workflow are assessed through patient and provider interviews at baseline and mid-implementation. RESULTS/DISCUSSION: With this hybrid effectiveness/implementation study, we seek to evaluate if a multi-level intervention effectively promotes informed decision-making about chemoprevention and provide valuable insights on how the intervention is implemented in U.S. TRIAL REGISTRATION: NCT04496739.


Assuntos
Neoplasias da Mama , Quimioprevenção , Humanos , Feminino , Neoplasias da Mama/prevenção & controle , Quimioprevenção/métodos , Educação de Pacientes como Assunto/métodos , Técnicas de Apoio para a Decisão , Pessoa de Meia-Idade , Adulto , Tomada de Decisões , Conhecimentos, Atitudes e Prática em Saúde , Comportamento de Redução do Risco , Projetos de Pesquisa , Antagonistas de Estrogênios/uso terapêutico , Antagonistas de Estrogênios/administração & dosagem , Medidas de Resultados Relatados pelo Paciente
3.
Hong Kong Med J ; 20(3): 205-12, 2014 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-24493687

RESUMO

OBJECTIVES: To compare the effectiveness and complications of intravenous ibuprofen versus indomethacin treatment of patent ductus arteriosus in preterm infants. DESIGN: Retrospective case series. SETTING: A tertiary referral centre in Hong Kong. PATIENTS: A total of 95 infants who had received at least one course of indomethacin or ibuprofen for closure of patent ductus arteriosus from January 2008 to December 2011 were studied. MAIN OUTCOME MEASURES: Following the total switch from indomethacin to ibuprofen in clinical use in April 2010, outcomes of infants receiving indomethacin and ibuprofen were compared. The primary outcomes including rates of failed medical closure and recourse to surgical ligation were compared. The secondary outcomes including rates of all-cause mortality, bronchopulmonary dysplasia, intestinal complications (necrotising enterocolitis, spontaneous intestinal perforation), change in urine output and serum creatinine, and progression of any intraventricular haemorrhage were also evaluated. RESULTS: The failure rate of medical treatment was similar in the indomethacin and ibuprofen groups, with 16 (31%) such infants in the indomethacin group and 14 (33%) in the ibuprofen group; for ibuprofen this yielded a relative risk of 1.06 (95% confidence interval, 0.66-1.67; P=0.852). The proportion of infants having surgical ligation was also similar. A higher rate of intestinal complications (necrotising enterocolitis or spontaneous intestinal perforation) was encountered in our ibuprofen group (P=0.043). No significant difference was observed in other secondary outcomes determined. CONCLUSION: In our clinical practice, ibuprofen and indomethacin were shown to be equally effective for medical closure of patent ductus arteriosus in premature infants. With the higher rates of intestinal complications and similar effects on renal function in the ibuprofen group, we conclude that ibuprofen may not have fewer adverse effects than indomethacin.


Assuntos
Permeabilidade do Canal Arterial/tratamento farmacológico , Ibuprofeno/uso terapêutico , Indometacina/uso terapêutico , Displasia Broncopulmonar/etiologia , Creatinina/sangue , Permeabilidade do Canal Arterial/mortalidade , Feminino , Humanos , Recém-Nascido , Perfuração Intestinal/epidemiologia , Masculino , Estudos Retrospectivos
4.
Schizophr Res ; 150(1): 297-302, 2013 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-23993865

RESUMO

OBJECTIVE: Relapse is common among patients with psychotic disorders. Identification of relapse predictors is important for decision regarding maintenance medication. Naturalistic studies often identify medication non-adherence as a dominant predictor. There are relatively few studies for predictors where adherence is already known. It is this situation i.e., discontinuation of medication that predictors will be most useful. We identify predictors for relapse in situations of (i) discontinuation and (ii) continuation of maintenance medication. METHOD: Analysis of relapse predictors is based on a randomized controlled study (n=178) comparing relapse rates between patients who discontinued or continued medication for at least 1 year following first-episode psychosis. Demographic, clinical and neurocognitive variables were assessed at baseline as predictors of relapse within 1 year. RESULTS: Risk of relapse was 79% in the discontinuation group and 41% in the maintenance group. Predictors in the discontinuation group were diagnosis of schizophrenia, poorer semantic fluency performance, and higher blink rate. Predictors in the continuation group were disinhibition soft signs and more general psychopathology symptoms. CONCLUSION: Different predictors of relapse were identified for first episode psychosis patients who discontinued and continued maintenance medication. Neurocognitive dysfunctions are important predictors for both groups. While signs of frontal dysfunction and dopamine hyperactivity predict relapse in the discontinuation group, sign of cognitive disinhibition predicts relapse in the continuation group.


Assuntos
Antipsicóticos/administração & dosagem , Dibenzotiazepinas/administração & dosagem , Transtornos Psicóticos/tratamento farmacológico , Adolescente , Adulto , Idoso , Método Duplo-Cego , Esquema de Medicação , Feminino , Seguimentos , Humanos , Masculino , Pessoa de Meia-Idade , Valor Preditivo dos Testes , Escalas de Graduação Psiquiátrica , Fumarato de Quetiapina , Prevenção Secundária , Resultado do Tratamento , Adulto Jovem
5.
Med J Malaysia ; 68(1): 30-3, 2013.
Artigo em Inglês | MEDLINE | ID: mdl-23466763

RESUMO

BACKGROUND: Screening for colorectal cancer (CRC) improves outcomes and reduces its incidence. However, population-based screening in Malaysia continues to be a challenge, in view of cost and limited availability of colonoscopic skills and facilities. Conventional qualitative faecal occult blood tests help to prioritize those who require earlier colonoscopies, but cannot distinguish between benign and malignant causes. Recently, quantitative immunochemical faecal occult blood tests (qFOBT) have demonstrated some discriminatory ability in distinguishing benign and malignant causes. We aim to assess feasibility of qFOBT as a tool for stratification of colonoscopic priority in asymptomatic patients. METHODS: A health awareness exhibition was held in a major shopping complex in Kuala Lumpur on 6 and 7 Feb 2010. All asymptomatic individuals> 40 years, and those < 40 with family history of CRC, were invited to participate. Eligible participants were given a questionnaire and screened using a qFOBT. A faecal haemoglobin level of 100 - 199 ng/mL was considered moderately positive, while a level of 200 ng/mL or more was strongly positive. Participants with a strongly positive qFOBT result were scheduled for a colonoscopy within the month, while those who were moderately positive were scheduled within 3 months. RESULTS: A total of 125 (82%) participants returned the qFOBT kit, of which 70 (56%) were male. The median age was 54 years. Majority of the participants were Chinese (60%), followed by Malay (25%), Indian (12%) and others (3%). Twelve (10%) participants were tested positive and were advised to undergo colonoscopy but 9 (75%) declined colonoscopy and further investigations citing lack of time as the reason. Of the 3 participants (all in the moderately positive group) who underwent colonoscopy, 2 had a family history of CRC. Colonoscopic findings revealed haemorrhoids in one participant and two participants had histologically proven benign sigmoid colonic polyps. CONCLUSION: The use of qFOBT as a tool to screen and prioritize asymptomatic patients for early colonoscopy in CRC screening is logistically feasible. However, in order for it to be effective, measures to improve compliance to colonoscopy need to be taken.


Assuntos
Colonoscopia , Sangue Oculto , Neoplasias Colorretais , Humanos , Programas de Rastreamento , Projetos Piloto
7.
Colorectal Dis ; 14(6): e346-51, 2012 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-22568647

RESUMO

AIM: Surgical site infection (SSI) remains a common postoperative morbidity, particularly in colorectal resections, and poses a significant financial burden to the healthcare system. The omission of mechanical bowel preparation, as is performed in enhanced recovery after surgery programmes, appears to further increase the incidence. Various wound protection methods have been devised to reduce the incidence of SSIs. However, there are few randomized controlled trials assessing their efficacy. The aim of this study is to investigate whether ALEXIS wound retractors with reinforced O-rings are superior to conventional wound protection methods in preventing SSIs in colorectal resections. METHODOLOGY: Patients undergoing elective open colorectal resections via a standardized midline laparotomy were prospectively randomized to either ALEXIS or conventional wound protection in a double-blinded manner. A sample size of 30 in each arm was determined to detect a reduction of SSI from 20% to 1% with a power of 80%. Secondary outcomes included postoperative pain. The operative wound was inspected daily by a specialist wound nurse during admission, and again 30 days postoperatively. Statistical analysis was performed using spss version 13 with P < 0.05 considered significant. RESULTS: Seventy-two patients were recruited into the study but eight were excluded. There were no SSIs in the ALEXIS study arm (n = 34) but six superficial incisional SSIs (20%) were diagnosed in the control arm (P = 0.006). Postoperative pain score analysis did not demonstrate any difference between the two groups (P = 0.664). CONCLUSION: The ALEXIS wound retractor is more effective in preventing SSI in elective colorectal resections compared with conventional methods.


Assuntos
Cirurgia Colorretal/efeitos adversos , Cirurgia Colorretal/instrumentação , Infecção da Ferida Cirúrgica/etiologia , Infecção da Ferida Cirúrgica/prevenção & controle , Adulto , Idoso , Idoso de 80 Anos ou mais , Distribuição de Qui-Quadrado , Método Duplo-Cego , Procedimentos Cirúrgicos Eletivos/efeitos adversos , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Dor Pós-Operatória/etiologia , Estatísticas não Paramétricas , Adulto Jovem
8.
Eur Rev Med Pharmacol Sci ; 15(7): 845-7, 2011 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-21780555

RESUMO

OBJECTIVES: Acute appendicitis is a common surgical emergency. The etiology and pathophysiology of appendicitis have been well investigated. Aggregatibacter aphrophilus is a fastidious gram-negative coccobacilli. Detection of this organism in clinical samples and its differentiation from Haemophilus aphrophilus or from Aggregatibacter actinomycetemcomitans in routine microbiology settings could be difficult. METHODS: In this rare case, we report the isolation of Aggregatibacter aphrophilus from the appendix of a 14-year-old boy presented with acute appendicitis. The genotypic method using 16S rRNA sequencing was used for identification of the organism at species level. CONCLUSION: This case highlights the importance of detecting fastidious and rare microorganisms such as Aggregatibacter aphrophilus that could be associated with acute appendicitis.


Assuntos
Apendicite/microbiologia , Apêndice/microbiologia , Haemophilus paraphrophilus/isolamento & purificação , Doença Aguda , Adolescente , Apendicectomia , Apendicite/cirurgia , Apêndice/cirurgia , DNA Bacteriano/isolamento & purificação , Haemophilus paraphrophilus/classificação , Haemophilus paraphrophilus/genética , Humanos , Masculino , RNA Ribossômico 16S/genética , Ribotipagem
9.
Aust N Z J Psychiatry ; 45(3): 199-205, 2011 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-21261552

RESUMO

OBJECTIVE: The aim of the current study was to investigate gender differences with respect to pre-treatment characteristics, clinical presentation, service utilization and functional outcome in patients presenting with first-episode psychosis. METHODS: A total of 700 participants (men, n = 360; women, n = 340) aged 15 to 25 years consecutively enrolled in a territory-wide first-episode psychosis treatment programme in Hong Kong from July 2001 to August 2003 were studied. Baseline and three-year follow up variables were collected via systematic medical file review. RESULTS: At service entry, men had significantly lower educational attainment (p < 0.01), longer median duration of untreated psychosis (p < 0.001), fewer past suicidal attempts (p < 0.01), more severe negative symptoms (p < 0.05) and fewer affective symptoms (p < 0.01) than women. There was no significant gender difference in age of onset. In three-year follow up, men had more prominent negative symptoms (p < 0.001), fewer affective symptoms (p < 0.01), more violent behaviour and forensic records (p < 0.01), and higher rate of substance abuse (p < 0.01). Women achieved higher levels of functioning than men (Social Occupational Functioning Assessment Scale (SOFAS), p < 0.001) and a significantly higher proportion of women than men engaged in full-time employment or study for at least 12 consecutive months (p < 0.001) in the initial three years after psychiatric treatment. CONCLUSION: Notable gender differences in clinical profiles, illness trajectory and functional outcome were demonstrated in Chinese young people suffering from first-episode psychosis. Differential needs between men and women and hence gender-specific therapeutic strategies should be considered in early intervention service.


Assuntos
Transtornos Psicóticos/diagnóstico , Caracteres Sexuais , Adolescente , Adulto , Feminino , Seguimentos , Hong Kong , Humanos , Masculino , Escalas de Graduação Psiquiátrica , Transtornos Psicóticos/psicologia , Tentativa de Suicídio/psicologia
10.
Psychol Med ; 41(8): 1709-19, 2011 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-20809999

RESUMO

BACKGROUND: We investigated cerebral structural connectivity and its relationship to symptoms in never-medicated individuals with first-onset schizophrenia using diffusion tensor imaging (DTI). METHOD: We recruited subjects with first episode DSM-IV schizophrenia who had never been exposed to antipsychotic medication (n=34) and age-matched healthy volunteers (n=32). All subjects received DTI and structural magnetic resonance imaging scans. Patients' symptoms were assessed on the Positive and Negative Syndrome Scale. Voxel-based analysis was performed to investigate brain regions where fractional anisotropy (FA) values significantly correlated with symptom scores. RESULTS: In patients with first-episode schizophrenia, positive symptoms correlated positively with FA scores in white matter associated with the right frontal lobe, left anterior cingulate gyrus, left superior temporal gyrus, right middle temporal gyrus, right middle cingulate gyrus, and left cuneus. Importantly, FA in each of these regions was lower in patients than controls, but patients with more positive symptoms had FA values closer to controls. We found no significant correlations between FA and negative symptoms. CONCLUSIONS: The newly-diagnosed, neuroleptic-naive patients had lower FA scores in the brain compared with controls. There was positive correlation between FA scores and positive symptoms scores in frontotemporal tracts, including left fronto-occipital fasciculus and left inferior longitudinal fasciculus. This implies that white matter dysintegrity is already present in the pre-treatment phase and that FA is likely to decrease after clinical treatment or symptom remission.


Assuntos
Encéfalo/ultraestrutura , Esquizofrenia/patologia , Psicologia do Esquizofrênico , Adulto , Estudos de Casos e Controles , Imagem de Tensor de Difusão , Feminino , Lobo Frontal/ultraestrutura , Giro do Cíngulo/ultraestrutura , Humanos , Masculino , Escalas de Graduação Psiquiátrica , Lobo Temporal/ultraestrutura
11.
Int J Soc Psychiatry ; 57(6): 580-7, 2011 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-20603266

RESUMO

BACKGROUND: This study explored the experience of first-episode psychosis from the patients' perspective and the meanings they attach to the illness and their recovery. METHOD: A qualitative methodology was used based on a focus group. Audio tapes were transcribed verbatim and three researchers participated in a content analysis that identified four major themes: the meaning of psychosis and psychotic experience; the meaning of recovery; stigma; and having an optimistic view of recovery. DISCUSSION: Participants' view of recovery was broader than that often held by psychiatrists, extending beyond symptom control and medication compliance, and they identified positive features that the experience of illness had brought. Their concerns included the side effects of medication and the fear of their illness being disclosed (to employers, university authorities, acquaintances, etc.) in the face of societal stigma. CONCLUSION: Ideas about what constitutes recovery need to take account of patients' views and experience in order to emphasize therapeutic optimism rather than pessimism, and to inform treatment contexts and the views of medical staff.


Assuntos
Atitude , Pacientes/psicologia , Transtornos Psicóticos/reabilitação , Adolescente , Adulto , Feminino , Grupos Focais , Hong Kong , Humanos , Masculino , Preconceito , Adulto Jovem
12.
Int J Soc Psychiatry ; 57(3): 248-62, 2011 May.
Artigo em Inglês | MEDLINE | ID: mdl-20068021

RESUMO

BACKGROUND: The attitudes of medical professionals towards recovery from schizophrenia are key in defining the therapeutic encounter and may change as they move through their medical career. METHOD: A qualitative methodology was used based on three focus groups of medical students and trainee psychiatrists in Hong Kong. Both held pessimistic attitudes towards recovery in schizophrenia. Four major categories and one central theme emerged, with little difference between students and doctors. The four categories were: (1) recovery is defined by the cessation of medication and the resumption of normal psychosocial functioning; (2) formal recovery requires medical confirmation plus the patient's admission of illness; (3) recovery should be discussed, but largely in terms of the contribution of drug compliance; and (4) participants recognized that stigma was an impediment to recovery while holding attitudes that were as unaccepting towards people with schizophrenia as lay people's. CONCLUSIONS: Traditional medical education over-emphasizes symptomatic recovery and ignores the need for a more flexible construction of the concept. Professional knowledge must incorporate both quantitative and qualitative data and inculcate humanitarian concern through active contact with users, and acceptance of the legitimacy of their expert experience. Medical education should seek effective ways to change entrenched negative attitudes in students about schizophrenia and the possibility of recovery. Further large-scale research should be carried out to establish attitudes of medical professionals towards recovery from schizophrenia and how this changes during typical career trajectories. This information could then be used to devise effective means within medical education to combat stigma and change attitudes.


Assuntos
Atitude do Pessoal de Saúde , Estágio Clínico , Internato e Residência , Psiquiatria/educação , Esquizofrenia/reabilitação , Psicologia do Esquizofrênico , Estudantes de Medicina/psicologia , Adulto , Feminino , Grupos Focais , Humanos , Relações Interpessoais , Masculino , Prognóstico , Esquizofrenia/diagnóstico , Socialização , Adulto Jovem
13.
BMJ ; 341: c4024, 2010 Aug 19.
Artigo em Inglês | MEDLINE | ID: mdl-20724402

RESUMO

OBJECTIVE: To study rates of relapse in remitted patients with first episode psychosis who either continued or discontinued antipsychotic drugs after at least one year of maintenance treatment. DESIGN: 12 month randomised, double blind, placebo controlled trial. SETTING: Early psychosis outpatient clinics in Hong Kong. PARTICIPANTS: 178 patients with first episode psychosis who had received at least one year of antipsychotic drug treatment between September 2003 and July 2006 and had no positive symptoms of psychosis. INTERVENTIONS: Patients received either maintenance treatment with quetiapine (400 mg/day) or placebo and were followed up for the next 12 months or until a relapse occurred. MAIN OUTCOME MEASURE: Relapse assessed monthly and defined as re-emergence of psychotic symptoms (delusions, conceptual disorganisation, hallucinations, suspiciousness, and unusual thought content) according to predefined thresholds. RESULTS: 178 patients were randomised (89 to quetiapine and 89 to placebo). The Kaplan-Meier estimate of the risk of relapse at 12 months was 41% (95% confidence interval 29% to 53%) for the quetiapine group and 79% (68% to 90%) for the placebo group (P<0.001). Although quetiapine was generally well tolerated, the rate of discontinuation due to adverse or serious adverse events was greater in the quetiapine group (18%; 16/89) than in the placebo group (8%; 7/89) (relative risk 2.29, 95% confidence interval 0.99 to 5.28; chi(2)=3.20, df=1; P=0.07). CONCLUSION: In a group of asymptomatic patients with first episode psychosis and at least one year of previous antipsychotic drug treatment, maintenance treatment with quetiapine compared with placebo resulted in a substantially lower rate of relapse during the following year. Trial registration Clinical trials NCT00334035.


Assuntos
Antipsicóticos/uso terapêutico , Dibenzotiazepinas/uso terapêutico , Transtornos Psicóticos/tratamento farmacológico , Método Duplo-Cego , Feminino , Humanos , Masculino , Fumarato de Quetiapina , Recidiva , Fatores de Tempo , Resultado do Tratamento
14.
Tech Coloproctol ; 14(2): 201-6, 2010 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-20428915

RESUMO

BACKGROUND: Aim of the study was to determine the feasibility and outcomes of utilizing the planned end colostomy site for placing the hand-assist device in performing hand-assisted laparoscopic abdominoperineal resections (HAL APR) in patients with low rectal cancer. METHODS: Patients with low rectal cancers not suitable for a sphincter salvage proctectomy were recruited. HAL APR was performed by placing the hand-assist device over the planned colostomy site. Standard total mesorectal excision (TME) was performed, and the specimen was delivered via the perineal incision. Patient data and perioperative variables were obtained from the institution colorectal cancer database and analyzed. RESULTS: Six patients underwent HAL APR from November 2004 to January 2006. Mean operative time was 213 min with no conversions or intraoperative complications. One patient developed post-operative ileus which resolved spontaneously. There were no other morbidities or mortalities. Mean hospitalization was 6.8 days. After a mean follow-up of 13.3 months, one patient developed a parastomal hernia which was subsequently repaired during liver resection for liver metastases. No other long-term complications occurred. CONCLUSION: HAL APR with the hand device placed at the planned stoma site is technically feasible. Without creating an additional incision, the operation is oncologically comparable and renders similar short-term outcomes as SL methods, maintaining the benefits of a minimally invasive approach.


Assuntos
Colostomia , Laparoscópios , Laparoscopia/métodos , Neoplasias Retais/cirurgia , Adulto , Idoso , Estudos de Coortes , Estudos de Viabilidade , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Neoplasias Retais/patologia , Estomas Cirúrgicos , Resultado do Tratamento
15.
Med J Malaysia ; 64(2): 163-5, 2009 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-20058579

RESUMO

Early diagnosis of rectal cancer is important for prompt treatment and better outcome. Little data exists for comparison or to set standards. The primary objective of this study is to identify factors resulting in delays in treatment of rectal cancer, the correlation between the disease stage and diagnosis waiting time, treatment waiting time and duration of symptoms. A five year retrospective audit was undertaken in University of Malaya Medical Centre (UMMC). There were 137 patients recruited and the median time to diagnosis was nine days after the first UMMC Surgical Unit consultation with a mean of 18.7 days. Some 11% had to wait more than four weeks for diagnosis. The median time from confirmation of diagnosis to surgery was 11 days with a mean of 18.6 days. Sixty-two percent of patients were operated upon within two weeks of diagnosis and more than 88% by four weeks. However, 10% of them had delayed surgery done four weeks after diagnosis. Long colonoscopy waiting time was the main cause for delay in diagnosis while delay in staging CTs were the main reason for treatment delays.


Assuntos
Diagnóstico Tardio , Neoplasias Retais/terapia , Adulto , Idoso , Idoso de 80 Anos ou mais , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Estadiamento de Neoplasias , Neoplasias Retais/diagnóstico , Neoplasias Retais/patologia , Fatores de Tempo
16.
Psychol Med ; 39(5): 793-800, 2009 May.
Artigo em Inglês | MEDLINE | ID: mdl-18713487

RESUMO

BACKGROUND: We and others have reported that patients experiencing their first episode of psychosis already have significant structural brain abnormalities. Antipsychotics seem to reverse subcortical volume deficits after months of treatment. However, the early impact of medication on brain morphology is not known. METHOD: Forty-eight individuals in their first episode of psychosis underwent magnetic resonance imaging (MRI) brain scanning. Twenty-six were antipsychotic naive and 22 were newly treated with antipsychotic medication for a median period of 3 weeks. In each group, 80% of subjects received a diagnosis of schizophrenia. The two groups were balanced for age, sex, handedness, ethnicity, height, years of education, paternal socio-economic status (SES) and Positive and Negative Syndrome Scale (PANSS) score. Group differences in whole-brain grey matter were compared voxel by voxel, using Brain Activation and Morphological Mapping (BAMM) software. We also conducted testing of group differences with region-of-interest (ROI) measurements of the caudate nucleus. RESULTS: Relative to the untreated group, those receiving antipsychotic medication for 3-4 weeks had significantly greater grey-matter volumes in the bilateral caudate and cingulate gyri, extending to the left medial frontal gyrus. ROI analysis confirmed that, in treated patients, the right and left caudate nuclei were significantly larger by 10% (p<0.039, two-tailed) and 9% (p<0.048, two-tailed) respectively. CONCLUSIONS: Early striatal grey-matter enlargement may occur within the first 3-4 weeks of antipsychotic treatment. Possible reasons for putative striatal hypertrophy and its implications are discussed.


Assuntos
Antipsicóticos/uso terapêutico , Corpo Estriado/efeitos dos fármacos , Processamento de Imagem Assistida por Computador , Imageamento por Ressonância Magnética , Esquizofrenia/tratamento farmacológico , Adulto , Núcleo Caudado/efeitos dos fármacos , Núcleo Caudado/patologia , Corpo Estriado/patologia , Dominância Cerebral/efeitos dos fármacos , Feminino , Lobo Frontal/efeitos dos fármacos , Lobo Frontal/patologia , Giro do Cíngulo/efeitos dos fármacos , Giro do Cíngulo/patologia , Humanos , Hipertrofia , Masculino , Projetos Piloto , Escalas de Graduação Psiquiátrica , Psicologia do Esquizofrênico , Adulto Jovem
17.
Int J Soc Psychiatry ; 54(2): 118-30, 2008 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-18488406

RESUMO

BACKGROUND: The study investigated the meaning of recovery to eight people with chronic schizophrenia. METHOD: A qualitative methodology was used based on a 3-hour focus group. The material was transcribed and analysed into 18 subcategories and 4 categories; namely recovery as a multi-dimensional construct, the relationship of medication to recovery, a sense of hopelessness and helplessness about recovery, factors that promoted recovery. DISCUSSION: Respondents believed that full recovery could not be said to have been achieved until they stopped medication and had a steady job. The support and care of family and friends were also vital, although sometimes problematic. Independent living has a different meaning in Chinese culture. CONCLUSIONS: Further research directions are suggested as well as ways to change attitudes to the inclusion of medication in recovery.


Assuntos
Avaliação de Resultados em Cuidados de Saúde , Esquizofrenia/tratamento farmacológico , Psicologia do Esquizofrênico , Adaptação Psicológica , Atitude Frente a Saúde , China , Doença Crônica , Cultura , Grupos Focais , Humanos , Modelos Teóricos , Ajustamento Social
18.
Aust N Z J Psychiatry ; 40(5): 446-51, 2006 May.
Artigo em Inglês | MEDLINE | ID: mdl-16683971

RESUMO

OBJECTIVE: Adherence to antipsychotic treatment is an important aspect of the long-term management of schizophrenia. The evaluation of adherence is often difficult in the clinical setting. This study compared patient self-reporting and clinician judgment of adherence behaviour in patients with early and chronic schizophrenia. METHOD: Clinician-rated questionnaires and parallel patient self-rated questionnaires were administered to 229 patients with early schizophrenia (illness duration < 5 years) and 255 patients with chronic schizophrenia. Items in the questionnaires addressed two forms of adherence behaviour (forgetting to take medication and deciding to stop medication) as well as attitudes toward medication. RESULTS: Significant non-adherent behaviour was reported by patients, particularly in the early schizophrenia group. Non-adherent behaviour was related to feelings of embarrassment about taking medication. Both non-adherence and embarrassment were under-recognized by clinicians. Starting from a prior probability of 0.24, knowledge of the patients' attitudes increased the posterior probability to 0.33, whereas clinicians' detection of non-adherence (deciding to stop medication) improved the posterior probability to 0.65. When both clinicians' evaluations and patients' attitudes were known, the posterior probability improved to 0.68. CONCLUSION: Non-adherence is a widespread phenomenon in early schizophrenia. Increasing clinicians' sensitivity to patients' feelings of embarrassment may be an important factor in the detection of non-adherence. When taking a base rate of non-adherence into consideration, clinicians' evaluations appeared to be more effective in detecting non-adherence than simple information obtained from patients on their attitudes toward medication. Pragmatic real-life estimation of non-adherence has important implications for the possibility of intervention.


Assuntos
Antipsicóticos/uso terapêutico , Cooperação do Paciente/estatística & dados numéricos , Transtornos Psicóticos/tratamento farmacológico , Transtornos Psicóticos/epidemiologia , Esquizofrenia/tratamento farmacológico , Esquizofrenia/epidemiologia , Adulto , Doença Crônica , Diagnóstico Precoce , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Transtornos Psicóticos/diagnóstico , Inquéritos e Questionários
19.
Schizophr Res ; 82(1): 51-64, 2006 Feb 15.
Artigo em Inglês | MEDLINE | ID: mdl-16326075

RESUMO

Many studies have shown that schizophrenia is associated with a wide range of cognitive impairments. Empirical findings suggest that patients with schizophrenia suffer from a "dysexecutive syndrome". However, the extent to which a general decline in neuropsychological function accounts for symptoms of executive dysfunction in schizophrenia is not clear. In this study, we examined further the nature and pattern of executive function in a sample of medication-naïve patients experiencing a first-episode of schizophrenia with a set of tests capturing the specific components of executive function. We also compared the performance of this clinical group with healthy controls. A total of 78 medication-naïve patients with first episode schizophrenia were recruited from the Early Assessment Service for Young People with Psychosis (EASY). Another 60 healthy controls were recruited for comparison. All subjects participated in a comprehensive set of executive function tests assessing initiation, sustained attention, online updating, switching, attention allocation, inhibition, and non-executive function. The executive function of patients with first-episode schizophrenia was found to be compromised relative to healthy controls. However, unlike patients with established schizophrenia, first episode patients exhibited only a limited deficit in sustained attention. Moreover, the majority of executive function deficits did not correlate with intellectual functioning and memory impairment in a sub-group of first episode patients without intellectual impairment. These findings suggest that first-episode patients exhibit a specific pattern of executive dysfunction compared to healthy controls and patients with an established illness. This differential breakdown of executive function components is unlikely to be an artefact of general intellectual decline or memory impairment in schizophrenia.


Assuntos
Transtornos Cognitivos/etiologia , Esquizofrenia/complicações , Esquizofrenia/fisiopatologia , Adolescente , Adulto , Transtornos Cognitivos/diagnóstico , Feminino , Humanos , Masculino , Testes Neuropsicológicos , Índice de Gravidade de Doença
20.
Qual Life Res ; 14(8): 1803-11, 2005 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-16155768

RESUMO

Despite increasing interest in the quality of life (QOL) of psychiatric patients in recent years, few studies have focused on the potential adverse effects of the illness on QOL during the period of untreated psychosis. Our study compares the QOL of patients with first-episode schizophrenia when they first presented to the psychiatric service with that of the normal population, and identifies possible relationships with various clinical parameters. One hundred and seventeen patients with schizophrenia (aged 14-28 years) who entered the Early Assessment Services for Young People with Psychosis (EASY) programme in Hong Kong from June 2001 to January 2004 were assessed with the MOS 36 item Short Form Health Survey (SF-36) and the World Health Organization Quality of Life Measure, abbreviated Hong Kong version (WHOQOL-BREF(HK)). We compared their SF-36 scores with controls from the normal population matched by age, sex, marital status and educational level. We assessed clinical parameters including positive, negative and depressive symptoms by the Positive and Negative Syndrome Scale (PANSS), the Scale for Assessment of Negative Symptoms (SANS), and the Montgomery and Asberg Depression Rating Scale (MADRS). When compared with matched controls from the normal population, significantly lower scores in all of the eight scales of the SF-36 were found in our patient group (p < 0.005). Various QOL domain scores had significant inverse correlations with the total MADRS score. However, there was no significant correlation with other clinical parameters. Young patients with first-episode schizophrenia have poorer QOL in the period of untreated psychosis than their counterparts in the community. Amongst various clinical parameters, the severity of depressive symptoms correlates most with QOL.


Assuntos
Transtornos Psicóticos , Qualidade de Vida/psicologia , Esquizofrenia , Adolescente , Adulto , Coleta de Dados , Feminino , Hong Kong , Humanos , Masculino
SELEÇÃO DE REFERÊNCIAS
DETALHE DA PESQUISA
...