Your browser doesn't support javascript.
loading
Mostrar: 20 | 50 | 100
Resultados 1 - 20 de 25
Filtrar
1.
World J Surg ; 47(4): 975-984, 2023 04.
Artigo em Inglês | MEDLINE | ID: mdl-36648518

RESUMO

BACKGROUND: Identifying the 30% of adhesive small bowel obstructions (aSBO) for which conservative management will require surgery is essential. The association between the previously described radiological score and failure of the conservative management of aSBO remains to be confirmed in a large prospective multicentric cohort. Our aim was to assess the risk factors of failure of the conservative management of aSBO considering the radiological score. MATERIAL AND METHODS: This prospective observational study took place in 15 French centers over 3 months. Consecutive patients experiencing aSBO with no early surgery were included. The six radiological features from the Angers radiological computed tomography (CT) score were noted (beak sign, closed loop, focal or diffuse intraperitoneal liquid, focal or diffuse mesenteric haziness, focal or diffuse mesenteric liquid, and diameter of the most dilated small bowel loop > 40 mm). RESULTS: Two hundred and seventy nine patients with aSBO were screened. Sixty patients (21.5%) underwent early surgery, and 219 (78.5%) had primary conservative management. In the end, 218 patients were included in the analysis of the risk factors for conservative treatment failure. Among them, 162 (74.3%) had had successful management while for 56 (25.7%) management had failed. In multivariate analysis, a history of surgery was not a significant risk factor for the failure of conservative treatment (OR = 0.11; 95%CI = 0-1.23). A previous episode of aSBO was protective against the failure of conservative treatment (OR = 0.36; 95%CI = 0.15-0.85) and an Angers CT score ≥ 5 as the only individual risk factor (OR = 2.39; 95%CI = 1.01-5.69). CONCLUSION: The radiological score of aSBO is a promising tool in improving the management of aSBO patients. A first episode of aSBO and/or a radiological score ≥5 should lead physicians to consider early surgical management.


Assuntos
Tratamento Conservador , Obstrução Intestinal , Humanos , Aderências Teciduais/diagnóstico por imagem , Aderências Teciduais/etiologia , Aderências Teciduais/cirurgia , Estudos Prospectivos , Estudos Retrospectivos , Obstrução Intestinal/diagnóstico por imagem , Obstrução Intestinal/etiologia , Obstrução Intestinal/cirurgia , Tomografia Computadorizada por Raios X , Fatores de Risco , Ira , Resultado do Tratamento
2.
Front Pharmacol ; 12: 730637, 2021.
Artigo em Inglês | MEDLINE | ID: mdl-34512355

RESUMO

Pharmacokinetic variability is a major source of differences in drug response and can be due to genetic variants and/or drug-drug interactions. Cytochromes P450 are among the most studied enzymes from a pharmacokinetic point of view. Their activity can be measured by phenotyping, and/or predicted by genotyping. Depending on the presence of drugs and/or diseases that can affect their in vivo activity, both approaches can be complementary. In 2014, the Geneva cocktail using dried blood spots was validated in healthy volunteers for CYP450 phenotyping. Since its clinical implementation, it has been used in approximately 500 patients in various clinical situations. Our study aims to report the concordance between CYP450 genotype and phenotype in real-life patients. The prospectively collected data from patients who were genotyped and/or phenotyped between January 2014 and December 2020 were reviewed. A total of 537 patients were genotyped and/or phenotyped for CYP450 during this period, and 241 underwent simultaneous genotyping and phenotyping allowing for genotype/phenotype concordance assessment. Genotyping correctly predicted poor metabolizer phenotypes for most CYPs isoenzymes studied, whereas agreement was more variable for intermediate, normal, and ultrarapid metabolizers. Discrepancies between the phenotype predicted on the basis of genotyping and the measured phenotype were not always explained by concurrent medication (phenotypic switch). Therefore genotyping and phenotyping tests are complementary approaches when aiming to individualize drug therapy. In the 537 patients, the majority of clinical situations were observed with analgesic/anesthetic drugs (n = 187), followed by antidepressants (n = 153), antineoplastics (n = 97), and immunosuppressants (n = 93). Inefficacy (or low drug levels) and adverse drug reaction (or high drug levels) were the main reasons for testing. Genotype and/or phenotype results explained or at least contributed to the clinical event in 44% of cases.

3.
Front Psychiatry ; 12: 614825, 2021.
Artigo em Inglês | MEDLINE | ID: mdl-34248693

RESUMO

Background: Polypharmacy and inappropriate prescription are frequent in vulnerable and multi-morbid populations. Adults with intellectual disability (ID) are at risk of being polymedicated because they often present with multiple comorbidities and challenging behaviors. Aim: The objective of this study was thus to evaluate the prevalence of potentially inappropriate medications (PIM) and polypharmacy in a hospital unit dedicated to adults with ID. Methods: A 10-month prospective observational study took place at a hospital unit specializing in the care of adults with ID in Geneva, Switzerland. Once a week, health and prescription data were collected and screened for PIM according to preset definitions. Results: Fourteen patients consented to participate, leading to 20 hospitalization events assessed during the study. Hospitalizations lasted 12.8 weeks on average. ID severities ranged from mild to profound, all degrees of severity being equally represented. One hundred percent of the patients were polymedicated (defined as five drugs or more prescribed simultaneously). A mean number of 9.4 drugs were prescribed per week, including 5.3 psychotropic drugs. The number of prescribed drugs remained stable throughout the hospitalizations. Antipsychotics were the most prescribed drug class (19% of all prescribed drugs), followed by benzodiazepines (13%) and laxatives (12%). A total of 114 PIM were recorded with an average of 5.7 PIM per hospitalization. Conclusions: This study showed that polypharmacy and inappropriate prescription are very common in adults with ID, even though the literature and expert positions advocate for deprescription in these patients. Specific prescribing and deprescribing guidelines are needed for that specific population.

4.
J Hepatol ; 71(6): 1184-1192, 2019 12.
Artigo em Inglês | MEDLINE | ID: mdl-31419515

RESUMO

BACKGROUND & AIMS: Liver adenomatosis (LA) is characterized by the presence of at least 10 hepatocellular adenomas (HCAs), but the natural history of this rare liver disorder remains unclear. Thus, we aimed to reappraise the natural history and the risk of complications in a cohort of patients with at least 10 HCAs. METHODS: We analyzed the natural history of 40 patients with LA, excluding glycogen storage disorders, in a monocentric cohort. Pathological examination was performed, with immunostaining and molecular biology carried out on surgical specimens or liver biopsies. RESULTS: Forty patients (36 female) were included with a median follow-up of 10.6 (1.9-26.1) years. Six (15%) patients had familial LA, all with germline HNF1A mutations. Median age at diagnosis was 39 (9-55) years. Thirty-three (94%) women had a history of oral contraception, and 29 (81%) women had a pregnancy before LA diagnosis. Overall, thirty-seven (93%) patients underwent surgery at diagnosis. Classification of HCAs showed 46% of patients with HNF1A-mutated HCA, 31% with inflammatory HCA, 3% with sonic hedgehog HCA, 8% with unclassified HCA. Only 15% of the patients demonstrated a "mixed LA" with different HCA subtypes. Hepatic complications were identified in 7 patients: 1 patient (3%) died from recurrent hepatocellular carcinoma after liver transplantation; 6 (15%) had hemorrhages, of which 5 occurred at diagnosis, with 1 fatal case during pregnancy, and 2 occurred in male patients with familial LA. Four patients (10%) had repeated liver resections. Finally, 4 (10%) patients developed extrahepatic malignancies during follow-up. CONCLUSIONS: The diversity in HCA subtypes, as well as the occurrence of bleeding and malignant transformation during long-term follow-up, underline the heterogeneous nature of LA, justifying close and specific management. In patients with germline HNF1A mutation, familial LA occurred equally frequently in males and females, with a higher rate of bleeding in male patients. LAY SUMMARY: Liver adenomatosis is a rare disease characterized by the presence of 10 or more hepatocellular adenomas that may rarely be of genetic origin. Patients with liver adenomatosis have multiple adenomas of different subtypes, with a risk of bleeding and malignant transformation that justify a specific management and follow-up.


Assuntos
Adenoma de Células Hepáticas , Carcinoma Hepatocelular , Hepatectomia , Fator 1-alfa Nuclear de Hepatócito/genética , Neoplasias Hepáticas , Fígado , Adenoma de Células Hepáticas/epidemiologia , Adenoma de Células Hepáticas/imunologia , Adenoma de Células Hepáticas/patologia , Adenoma de Células Hepáticas/terapia , Biópsia/métodos , Carcinoma Hepatocelular/epidemiologia , Carcinoma Hepatocelular/patologia , Transformação Celular Neoplásica/patologia , Feminino , França/epidemiologia , Hemorragia/diagnóstico , Hemorragia/epidemiologia , Hepatectomia/métodos , Hepatectomia/estatística & dados numéricos , Humanos , Imuno-Histoquímica , Fígado/diagnóstico por imagem , Fígado/patologia , Neoplasias Hepáticas/epidemiologia , Neoplasias Hepáticas/patologia , Masculino , Pessoa de Meia-Idade , Mutação , História Reprodutiva , Tempo
5.
BMC Psychiatry ; 19(1): 73, 2019 02 19.
Artigo em Inglês | MEDLINE | ID: mdl-30782143

RESUMO

BACKGROUND: Rebound cholinergic syndrome is a rare, but well known unwanted phenomenon occurring after abrupt clozapine discontinuation. There have been previous reported cases of cholinergic rebound in the literature; however, these reports described cholinergic rebound following cessation of high doses of clozapine in patients diagnosed with schizophrenia. Here, we report a case of rebound cholinergic syndrome and catatonia in a male patient three days after abrupt discontinuation of 50 mg of clozapine prescribed for type I bipolar affective disorder. CASE PRESENTATION: A 66-year old male of Spanish origin, treated for type I bipolar affective disorder for 15 years and for Crohn disease, was brought to the emergency department because of a sudden onset of mutism, dysphagia and trismus. He was described catatonic and presented hypertension, tachycardia and tachypnea. His body temperature was normal and the laboratory tests were unremarkable at presentation. A head CT and an EEG were in the normal range. While reviewing his history, it appeared the he was on clozapine 50 mg a day, first introduced 2 months ago, during a previous hospitalization for a manic episode resistant to other mood stabilizers. For an unknown reason, the patient's psychiatrist stopped clozapine three days before the admission and replaced it by risperidone 5 mg and quetiapine 200 mg daily. A cholinergic rebound syndrome was then evoked. The patient's ability to speak recovered dramatically and fast after the intravenous administration of 2.5 mg of biperiden supporting the diagnosis. Risperidone and quetiapine were also stopped. The patient fully recovered in 20 days after the reintroduction of 50 mg of clozapine and 2.5 mg of biperiden daily. CONCLUSIONS: This case report underscores that cholinergic rebound syndrome may occur in patients suffering from bipolar affective disorders, being on clozapine as a mood stabilizer. The low dose clozapine does not preclude severe manifestations of the phenomenon. Progressive tapering should therefore be adopted in any case.


Assuntos
Catatonia/induzido quimicamente , Clozapina/efeitos adversos , Síndrome de Abstinência a Substâncias/psicologia , Suspensão de Tratamento , Idoso , Antipsicóticos/efeitos adversos , Antipsicóticos/uso terapêutico , Transtorno Bipolar/tratamento farmacológico , Colinérgicos/efeitos adversos , Clozapina/uso terapêutico , Humanos , Masculino
6.
Dig Liver Dis ; 50(3): 285-290, 2018 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-29183764

RESUMO

INTRODUCTION: Management of portal vein thrombosis (PVT) in cancer patients remains discussed. AIMS: The objective of this multicenter retrospective study was to investigate the management and outcome of PVT in patients with digestive cancers other than hepatocellular carcinoma (HCC). METHOD: Main inclusion criteria were trunk or branch PVT in patients with locally advanced or metastatic digestive cancers. Predictive factors of bleeding and overall survival (OS) were evaluated in univariate and multivariate analysis. RESULTS: Between 2012 and 2016, 118 patients with PVT and digestive cancers were identified. The majority had a pancreatic cancer (50%). Sixty-six percent of patients had trunk PVT location. Endoscopic screening of portal hypertension was performed in only 7 patients (1%) and 5 had esophageal varices. Gastrointestinal bleeding occurred in 22 patients (19%) and 12 patient deaths (17%) were related to a gastrointestinal hemorrhage. Metastatic disease (HR=2.83 [95%CI 1.47-5.43], p<0.01) and gastrointestinal hemorrhage (HR=1.68 [95%CI 1.01-2.78], p=0.04) were associated with OS in multivariate analysis. Only trunk PVT location was significantly associated with gastrointestinal hemorrhage in multivariate analysis (HR=5.56 [95%CI 1.18-26.32], p=0.03). CONCLUSION: A high rate of variceal bleeding leading to death was found in this cohort. Endoscopic screening and the efficacy of prophylactic treatment of variceal bleeding remain to be evaluated in a prospective study.


Assuntos
Varizes Esofágicas e Gástricas/epidemiologia , Hemorragia Gastrointestinal/mortalidade , Neoplasias Gastrointestinais/complicações , Trombose Venosa/complicações , Adulto , Idoso , Idoso de 80 Anos ou mais , Endoscopia Gastrointestinal , Feminino , França/epidemiologia , Hemorragia Gastrointestinal/terapia , Humanos , Hipertensão Portal/epidemiologia , Modelos Logísticos , Masculino , Pessoa de Meia-Idade , Análise Multivariada , Veia Porta/fisiopatologia , Estudos Retrospectivos , Fatores de Tempo
7.
Glia ; 66(4): 874-888, 2018 04.
Artigo em Inglês | MEDLINE | ID: mdl-29285794

RESUMO

Mitochondrial defects associated with respiratory chain complex I deficiency lead to heterogeneous fatal syndromes. While the role of NDUFS8, an essential subunit of the core assembly of the complex I, is established in mitochondrial diseases, the mechanisms underlying neuropathology are poorly understood. We developed a Drosophila model of NDUFS8 deficiency by knocking down the expression of its fly homologue in neurons or in glial cells. Downregulating ND23 in neurons resulted in shortened lifespan, and decreased locomotion. Although total brain ATP levels were decreased, histological analysis did not reveal any signs of neurodegeneration except for photoreceptors of the retina. Interestingly, ND23 deficiency-associated phenotypes were rescued by overexpressing the glucose transporter hGluT3 demonstrating that boosting glucose metabolism in neurons was sufficient to bypass altered mitochondrial functions and to confer neuroprotection. We then analyzed the consequences of ND23 knockdown in glial cells. In contrast to neuronal knockdown, loss of ND23 in glia did not lead to significant behavioral defects nor to reduced lifespan, but induced brain degeneration, as visualized by numerous vacuoles found all over the nervous tissue. This phenotype was accompanied by the massive accumulation of lipid droplets at the cortex-neuropile boundaries, suggesting an alteration of lipid metabolism in glia. These results demonstrate that complex I deficiency triggers metabolic alterations both in neurons and glial cells which may contribute to the neuropathology.


Assuntos
Proteínas de Drosophila/deficiência , Metabolismo dos Lipídeos/fisiologia , Doenças Mitocondriais/patologia , NADH Desidrogenase/deficiência , Doenças Neurodegenerativas/patologia , Neuroglia/patologia , Trifosfato de Adenosina/metabolismo , Animais , Animais Geneticamente Modificados , Encéfalo/metabolismo , Encéfalo/patologia , Modelos Animais de Doenças , Drosophila , Proteínas de Drosophila/genética , Feminino , Transportador de Glucose Tipo 3/genética , Transportador de Glucose Tipo 3/metabolismo , Homeostase/fisiologia , Humanos , Doenças Mitocondriais/metabolismo , Atividade Motora/fisiologia , NADH Desidrogenase/genética , Doenças Neurodegenerativas/metabolismo , Neuroglia/metabolismo , Neurônios/metabolismo , Neurônios/patologia , Células Fotorreceptoras de Invertebrados/metabolismo , Células Fotorreceptoras de Invertebrados/patologia , Interferência de RNA , RNA Mensageiro/metabolismo
8.
BMJ Open ; 7(7): e016070, 2017 Jul 31.
Artigo em Inglês | MEDLINE | ID: mdl-28760793

RESUMO

OBJECTIVES: Potentially inappropriate medication (PIM) occurs frequently and is a well-known risk factor for adverse drug events, but its incidence is underestimated in internal medicine. The objective of this study was to develop an electronic prescription-screening checklist to assist residents and young healthcare professionals in PIM detection. DESIGN: Five-step study involving selection of medical domains, literature review and 17 semistructured interviews, a two-round Delphi survey, a forward/back-translation process and an electronic tool development. SETTING: 22 University and general hospitals from Canada, Belgium, France and Switzerland. PARTICIPANTS: 40 physicians and 25 clinical pharmacists were involved in the study.Agreement with the checklist statements and their usefulness for healthcare professional training were evaluated using two 6-point Likert scales (ranging from 0 to 5). PRIMARY AND SECONDARY OUTCOME MEASURES: Agreement and usefulness ratings were defined as: >65% of the experts giving the statement a rating of 4 or 5, during the first Delphi-round and >75% during the second. RESULTS: 166 statements were generated during the first two steps. Mean agreement and usefulness ratings were 4.32/5 (95% CI 4.28 to 4.36) and 4.11/5 (4.07 to 4.15), respectively, during the first Delphi-round and 4.53/5 (4.51 to 4.56) and 4.36/5 (4.33 to 4.39) during the second (p<0.001). The final checklist includes 160 statements in 17 medical domains and 56 pathologies. An algorithm of approximately 31 000 lines was developed including comorbidities and medications variables to create the electronic tool. CONCLUSION: PIM-Check is the first electronic prescription-screening checklist designed to detect PIM in internal medicine. It is intended to help young healthcare professionals in their clinical practice to detect PIM, to reduce medication errors and to improve patient safety.


Assuntos
Lista de Checagem/métodos , Prescrição Inadequada/prevenção & controle , Medicina Interna/métodos , Erros de Medicação/prevenção & controle , Lista de Medicamentos Potencialmente Inapropriados , Adulto , Atitude do Pessoal de Saúde , Técnica Delphi , Feminino , Humanos , Masculino , Pessoa de Meia-Idade
9.
Eur J Radiol ; 94: 180-190, 2017 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-28712693

RESUMO

PURPOSE: Sinusoidal obstruction syndrome (SOS) is a likely side effect of colorectal liver metastases (CRLM) chemotherapy. This study aimed to assess computed tomography scan (CT-scan) performance for SOS diagnosis for patients receiving neoadjuvant chemotherapy (NC) prior to CRLM surgery, comparing obtained results with pathological gold standard. METHODS: Preoperative CT-scans of 67 patients who had received a NC prior to liver resection for CRLM from 2011 to 2016 were retrospectively analysed. Positive diagnosis and severity of SOS were established after consensual review of the slides by three pathologists. Preoperative CT-scans were separately interpreted by two radiologists and evocative signs of SOS were sought, defined according to a literature review and operators experience. In order to identify SOS predictors, univariate analysis and multivariate logistic regression were used to study CT-scan signs and pathological results correlation. RESULTS: Twenty-nine patient (43%) had an SOS, 22 (33%) were low-grade and 7 (10%) were high-grade. All patient had received a median of 6 cures (3-27) containing Oxaliplatin for 53 (79%) of them. In univariate analysis, hepatic heterogeneity (p<0.001), puddle-like or micronodular appearance (p<0.001), peripheral distribution of heterogeneity (p=0.085), clover-like sign (p=0.02), splenomegaly (p=0.0026), spleen volume increase ≥30% (p=0.04) or splenic length increase ≥15% (p=0.04), as well as the subjective impression of the observer (P<0.001) were significantly associated with SOS diagnosis. In multivariate analysis, clover-like sign (OR 1.87, 95% CI 1.18-2.95, p=0.0081), increase in spleen volume ≥30% (OR 1.29, 95% CI 1.01-1.64, p=0.04), and the peripheral distribution of heterogeneity (OR 1.53, 95% CI 1.21-1.94, p<0.001) were independent SOS predictors. The area under the ROC curve was 0.804. The inter-observer agreement for SOS diagnosis was moderate (Kappa=0.546). CONCLUSION: CT-scan can detect suggestive signs of SOS in patients receiving chemotherapy for CRLM. By integrating clinical and biological information into CT-scan data, it may be fruitful to create a positive diagnostic and severity score for chemotherapy-induced SOS.


Assuntos
Antineoplásicos/efeitos adversos , Neoplasias Colorretais/tratamento farmacológico , Hepatopatia Veno-Oclusiva/induzido quimicamente , Neoplasias Hepáticas/tratamento farmacológico , Tomografia Computadorizada por Raios X , Idoso , Antineoplásicos/uso terapêutico , Protocolos de Quimioterapia Combinada Antineoplásica , Neoplasias Colorretais/patologia , Meios de Contraste , Feminino , Hepatopatia Veno-Oclusiva/diagnóstico por imagem , Humanos , Neoplasias Hepáticas/secundário , Masculino , Pessoa de Meia-Idade , Estudos Retrospectivos , Tomografia Computadorizada por Raios X/efeitos adversos
10.
J Med Case Rep ; 11(1): 193, 2017 Jul 18.
Artigo em Inglês | MEDLINE | ID: mdl-28716071

RESUMO

BACKGROUND: Solitary plasmacytoma of the liver is a very rare and aggressive form of plasma cell dyscrasia. To the best of our knowledge, very few cases have been reported without systemic disease. We reported a rare case of hepatic solitary plasmacytoma that successfully responded to fractionated stereotactic radiotherapy. CASE PRESENTATION: A 64-year-old white French man had monoclonal gammopathy of the immune globulin G lambda type; he developed a cholestasis and cytolysis with the discovery of a subscapular nodule. A biopsy showed plasma cells and, for several reasons, the decision was made to use the fractionated stereotactic radiotherapy strategy. After 20 months, he is asymptomatic and the immune globulin G component has completely disappeared. CONCLUSION: We suggest considering Cyberknife® radiosurgery as an option for the treatment of hepatic solitary plasmacytoma.


Assuntos
Neoplasias Hepáticas/radioterapia , Plasmocitoma/radioterapia , Radiocirurgia/instrumentação , Humanos , Fígado/diagnóstico por imagem , Neoplasias Hepáticas/diagnóstico por imagem , Neoplasias Hepáticas/patologia , Imageamento por Ressonância Magnética , Masculino , Pessoa de Meia-Idade , Plasmocitoma/diagnóstico por imagem , Plasmocitoma/patologia , Tomografia por Emissão de Pósitrons combinada à Tomografia Computadorizada , Resultado do Tratamento , Ultrassonografia
11.
BMC Health Serv Res ; 16(1): 575, 2016 10 13.
Artigo em Inglês | MEDLINE | ID: mdl-27737666

RESUMO

BACKGROUND: Cervical cancer is the greatest cause of age-weighted years of life lost in the developing world. Human papillomavirus (HPV) infection is associated with a high proportion of cervical cancers, and HPV vaccination may help to reduce the incidence of cancer. The aim of the study was to identify barriers, obstacles, and strategies and to analyze key concerns and lessons learned with respect to the implementation of HPV vaccination program in low- and middle-income countries. METHODS: The Gardasil Access Program (GAP) is a donation program established to enable organizations and institutions in eligible low-resource countries to gain operational experience designing and implementing HPV vaccination programs. This study used an online survey to capture the experiences and insights of program managers participating in the GAP. Different factors related to HPV vaccination program management were collected. A mixed-method approach enabled the presentation of both quantitative measurements and qualitative insights. RESULTS: Twenty-nine programs implemented by 23 institutions in 19 low- and middle-income countries were included. Twenty programs managers (97.7 %) reported that their institution implemented sensitization strategies about vaccination prior to the launch of vaccination campaign. The most frequently reported obstacles to HPV vaccination by the program managers were erroneous perceptions of population related to the vaccine's safety and efficacy. Reaching and maintaining follow-up with target populations were identified as challenges. Insufficient infrastructure and human resources financing and the vaccine delivery method were identified as significant health system barriers. Coupling HPV vaccination with other health interventions for mothers of targeted girls helped to increase vaccination and cervical cancer screening. The majority of program managers reported that their programs had a positive impact on national HPV vaccination policy. The majority of institutions had national and international partners that provided support for human resources, technical assistance, and training and financial support for health professionals. CONCLUSION: Local organizations and institutions can implement successful HPV vaccination campaigns. Adequate and adapted planning and resources that support information sharing, sensitization, and mobilization are essential for such success. These results can inform the development of programs and policies related to HPV vaccination in low- and middle-income countries.


Assuntos
Países em Desenvolvimento , Eficiência Organizacional , Programas de Imunização/organização & administração , Vacinas contra Papillomavirus/administração & dosagem , Desenvolvimento de Programas , Adolescente , Adulto , Detecção Precoce de Câncer , Feminino , Programas Governamentais , Humanos , Infecções por Papillomavirus/prevenção & controle , Serviços Preventivos de Saúde , Inquéritos e Questionários , Neoplasias do Colo do Útero/prevenção & controle
12.
PLoS One ; 10(6): e0127213, 2015.
Artigo em Inglês | MEDLINE | ID: mdl-26070071

RESUMO

IMPORTANCE: Sudden cardiac death is a leading cause of mortality in psychiatric patients. Long QT (LQT) is common in this population and predisposes to Torsades-de-Pointes (TdP) and subsequent mortality. OBJECTIVE: To estimate the cost-effectiveness of electrocardiographic screening to detect LQT in psychiatric inpatients. DESIGN, SETTING, AND PARTICIPANTS: We built a decision analytic model based on a decision tree to evaluate the cost-effectiveness and utility of LQT screening from a health care perspective. LQT proportion parameters were derived from an in-hospital cross-sectional study. We performed experts' elicitation to estimate the risk of TdP, given extent of QT prolongation. A TdP reduction of 65% after LQT detection was based on positive drug dechallenge rate and through adequate treatment and electrolyte adjustments. The base-case model uncertainty was assessed with one-way and probabilistic sensitivity analyses. Finally, the TdP related mortality and TdP avoidance parameters were varied in a two-way sensitivity analysis to assess their effect on the Incremental Cost-Effectiveness Ratio (ICER). MAIN OUTCOMES AND MEASURES: Costs, Quality Ajusted Life Year (QALY), ICER, and probability of cost effectiveness thresholds ($ 10,000, $25,000, and $50,000 per QALY). RESULTS: In the base-case scenario, the numbers of patients needed to screen were 1128 and 2817 to avoid one TdP and one death, respectively. The ICER of systematic ECG screening was $8644 (95%CI, 3144-82 498) per QALY. The probability of cost-effectiveness was 96% at a willingness-to-pay of $50,000 for one QALY. In sensitivity analyses, results were sensitive to the case-fatality of TdP episodes and to the TdP reduction following the diagnosis of LQT. CONCLUSION AND RELEVANCE: In psychiatric hospitals, performing systematic ECG screening at admission help reduce the number of sudden cardiac deaths in a cost-effective fashion.


Assuntos
Análise Custo-Benefício , Morte Súbita Cardíaca/epidemiologia , Morte Súbita Cardíaca/etiologia , Eletrocardiografia , Transtornos Mentais/complicações , Transtornos Mentais/epidemiologia , Adulto , Arritmias Cardíacas , Síndrome de Brugada , Doença do Sistema de Condução Cardíaco , Eletrocardiografia/economia , Feminino , Sistema de Condução Cardíaco/anormalidades , Humanos , Masculino , Programas de Rastreamento , Pessoa de Meia-Idade , Prevalência , Probabilidade , Anos de Vida Ajustados por Qualidade de Vida , Fatores de Risco , Torsades de Pointes/complicações , Torsades de Pointes/diagnóstico , Torsades de Pointes/epidemiologia , Adulto Jovem
13.
Int Clin Psychopharmacol ; 30(3): 119-28, 2015 May.
Artigo em Inglês | MEDLINE | ID: mdl-25768383

RESUMO

Bariatric surgery is increasingly being performed, with the intended benefits of significant and durable weight loss. Radical surgical resection can result in short bowel syndrome (SBS), a rare and devastating condition. Psychological distress is common in these patients. Relevant articles were identified by searching Pubmed and EMBASE databases with the following keywords: 'Bariatrics'[Mesh] OR 'Short Bowel Syndrome' AND 'Antidepressive Agents' OR 'Psychotropic Drugs'[Mesh]. One in-vitro study, four clinical studies and six relevant case reports were identified. Most clinical studies on antidepressant focused on the Roux-en-Y gastric bypass (RYGB); these results are somewhat conflicting for a variety of reasons including different methodologies and small sample sizes. One month after RYGB, in patients receiving serotonin or serotonin/noradrenaline reuptake inhibitors, antidepressant levels decrease to 50% of preoperative levels and return to baseline (or greater) by 6 months in almost all patients. Other pharmacokinetic studies have shown that, 1 year after RYGB, duloxetine and sertraline levels are significantly reduced in comparison with the control population. Paradoxically, in patients with SBS and a few years after surgery, high concentration to dose ratios have been reported for citalopram and escitalopram; this may be because of an intestinal adaptation. Surgery of the intestine is likely to modify absorption and first-pass metabolism of drugs; managing the treatment of depression and anxiety in bariatric and SBS patients therefore presents a major challenge. Close clinical follow-up, associated with therapeutic drug monitoring when available, should enable the optimization of treatment response and modulate the risk of adverse events.


Assuntos
Cirurgia Bariátrica/psicologia , Cirurgia Bariátrica/tendências , Transtornos do Humor/tratamento farmacológico , Transtornos do Humor/psicologia , Antidepressivos/uso terapêutico , Procedimentos Cirúrgicos do Sistema Digestório/psicologia , Procedimentos Cirúrgicos do Sistema Digestório/tendências , Humanos , Transtornos do Humor/diagnóstico , Resultado do Tratamento
14.
Pain ; 156(3): 397-404, 2015 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-25687539

RESUMO

Positive allosteric modulators of GABAA receptors (GAMs) acting at specific subtypes of GABAA receptors effectively restore compromised spinal pain control in rodents. Studies addressing a similar antihyperalgesic effect in humans are sparse and are hampered by sedative effects of nonselective GAMs available for use in humans. We present results from a randomized controlled double-blind crossover study in 25 healthy volunteers, which addressed potential antihyperalgesic actions of clobazam (CBZ) and clonazepam (CLN) at mildly sedating equianticonvulsive doses. Clobazam was chosen because of its relatively low sedative properties and CLN because of its use in neuropathic pain. Tolterodine (TLT) was used as an active placebo. The primary outcome parameter was a change in the area of cutaneous UVB irradiation-induced secondary hyperalgesia (ASH), which was monitored for 8 hours after drug application. Sedative effects were assessed in parallel to antihyperalgesia. Compared with TLT, recovery from hyperalgesia was significantly faster in the CBZ and CLN groups (P = 0.009). At the time point of maximum effect, the rate of recovery from hyperalgesia was accelerated by CBZ and CLN, relative to placebo by 15.7% (95% confidence interval [CI] 0.8-30.5), P = 0.040, and 28.6% (95% CI 4.5-52.6), P = 0.022, respectively. Active compounds induced stronger sedation than placebo, but these differences disappeared 8 hours after drug application. We demonstrate here that GAMs effectively reduce central sensitization in healthy volunteers. These results provide proof-of-principle evidence supporting efficacy of GAMs as antihyperalgesic agents in humans and should stimulate further research on compounds with improved subtype specificity.


Assuntos
Benzodiazepinas/sangue , Benzodiazepinas/farmacocinética , Clonazepam/sangue , Clonazepam/farmacocinética , Moduladores GABAérgicos/sangue , Hiperalgesia/tratamento farmacológico , Limiar da Dor/efeitos dos fármacos , Adolescente , Adulto , Clobazam , Estudos Cross-Over , Citocromo P-450 CYP2C19/genética , Citocromo P-450 CYP3A/genética , Método Duplo-Cego , Feminino , Moduladores GABAérgicos/farmacocinética , Genótipo , Voluntários Saudáveis , Humanos , Hiperalgesia/etiologia , Masculino , Pessoa de Meia-Idade , Testes Neuropsicológicos , Reflexo/efeitos dos fármacos , Movimentos Sacádicos/efeitos dos fármacos , Pele/inervação , Fatores de Tempo , Raios Ultravioleta/efeitos adversos , Adulto Jovem
15.
BMC Public Health ; 14: 670, 2014 Jun 30.
Artigo em Inglês | MEDLINE | ID: mdl-24981818

RESUMO

BACKGROUND: Cervical cancer is the third most common cancer in women worldwide, with high incidence in lowest income countries. Vaccination against Human Papilloma Virus (HPV) may help to reduce the incidence of cervical cancer. The aim of the study was to analyze HPV vaccination programs performance implemented in low and middle-income countries. METHODS: The Gardasil Access Program provides HPV vaccine at no cost to help national institutions gain experience implementing HPV vaccination. Data on vaccine delivery model, number of girls vaccinated, number of girls completing the three-dose campaign, duration of vaccination program, community involvement and sensitization strategies were collected from each program upon completion. Vaccine Uptake Rate (VUR) and Vaccine Adherence between the first and third doses (VA) rate were calculated. Multivariate linear regressions analyses were fitted. RESULTS: Twenty-one programs were included in 14 low and middle-income countries. Managing institutions were non-governmental organizations (NGOs) (n = 8) or Ministries of Health (n = 13). Twelve programs were school-based, five were health clinic-based and four utilized a mixed model. A total of 217,786 girls received a full course of vaccination.Mean VUR was 88.7% (SD = 10.5) and VA was 90.8% (SD = 7.3). The mean total number of girls vaccinated per program-month was 2,426.8 (SD = 2,826.6) in school model, 335.1 (SD = 202.5) in the health clinic and 544.7 (SD = 369.2) in the mixed models (p = 0.15). Community involvement in the follow-up of girls participating in the vaccination campaign was significantly associated with VUR. Multivariate analyses identified school-based (ß = 13.35, p = 0.001) and health clinic (ß = 13.51, p = 0.03) models, NGO management (ß = 14.58, p < 10(-3)) and duration of program vaccination (ß = -1.37, p = 0.03) as significant factors associated with VUR. CONCLUSION: School and health clinic-based models appeared as predictive factors for vaccination coverage, as was management by an NGO; program duration could play a role in the program's effectiveness. Results suggest that HPV vaccine campaigns tailored to meet the needs of communities can be effective. These results may be useful in the development of national HPV vaccination policies in low and middle-income countries.


Assuntos
Programas de Imunização , Infecções por Papillomavirus/prevenção & controle , Aceitação pelo Paciente de Cuidados de Saúde , Neoplasias do Colo do Útero/prevenção & controle , Adolescente , Adulto , Criança , Países em Desenvolvimento , Feminino , Vacina Quadrivalente Recombinante contra HPV tipos 6, 11, 16, 18 , Humanos , Programas de Imunização/economia , Pessoa de Meia-Idade , Papillomaviridae , Infecções por Papillomavirus/epidemiologia , Vacinas contra Papillomavirus/administração & dosagem , Aceitação pelo Paciente de Cuidados de Saúde/estatística & dados numéricos , Avaliação de Programas e Projetos de Saúde/estatística & dados numéricos
16.
J Pain ; 15(2): 129-35, 2014 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-24342707

RESUMO

UNLABELLED: Neurobiological evidence points to altered central nervous system processing of nociceptive stimuli in fibromyalgia. Enzymes like catechol-O-methyl-transferase (COMT) are involved in the elimination of catecholamines playing a possible role in central sensitization and pain. We used quantitative sensory testing to evidence central sensitization in fibromyalgia patients and test whether COMTVal158Met polymorphism, associated with a reduction in enzyme activity, plays a role in sensitized patients. Pain evaluation and quantitative sensory testing were performed including the spinal nociceptive flexion reflex, a physiologic correlate for the evaluation of central nociceptive pathways. Quality of life and distress questionnaires were used. A total of 137 fibromyalgia patients were assessed and compared to 99 matched controls. Central sensitization (nociceptive flexion reflex <27 mA) was present in 95/134 (71%) patients. Among them, COMT p.Val158Met polymorphism displayed a significant linear "genotype effect" (P = .033), with the Met/Met (mean = 17.8 ± 4.8 mA) and Val/Val (mean = 21.4 ± 4.6 mA) subgroups at the opposite ends of the nociceptive flexion reflex threshold (Met/Met vs Val/Val P = .015) and the Val/Met subgroup (mean = 19 ± 4.9 mA) in between (Val/Met vs Val/Val P = .041). Spontaneous moderate to severe pain was more likely to be associated with COMT Met/Met genotype. Patients showed important emotional distress compared to controls. In sensitized patients, the COMT Met/Met subgroup showed systematically-though not significantly-worse scores for all psychological variables. PERSPECTIVE: The association between COMT p.Val158Met polymorphism and central sensitization in fibromyalgia is essential as it refers to the severity of central sensitization and may be a risk factor for treatment outcome.


Assuntos
Catecol O-Metiltransferase/genética , Fibromialgia/genética , Fibromialgia/psicologia , Dor/genética , Polimorfismo Genético , Vias Aferentes/fisiopatologia , Sensibilização do Sistema Nervoso Central/genética , Sensibilização do Sistema Nervoso Central/fisiologia , Temperatura Baixa , Estimulação Elétrica , Emoções , Feminino , Fibromialgia/complicações , Técnicas de Genotipagem , Temperatura Alta , Humanos , Masculino , Pessoa de Meia-Idade , Dor/etiologia , Dor/fisiopatologia , Dor/psicologia , Medição da Dor , Limiar da Dor/fisiologia , Limiar da Dor/psicologia , Qualidade de Vida , Inquéritos e Questionários
17.
Pain Physician ; 16(5): E553-62, 2013.
Artigo em Inglês | MEDLINE | ID: mdl-24077206

RESUMO

BACKGROUND: Investigations based on quantitative sensory testing have consistently shown evidence of allodynia in fibromyalgia syndrome (FMS) patients involving both the spinal and supraspinal pain regulatory systems. Functional imaging studies have demonstrated enhanced neural activities in pain-related brain areas as well as impairment of pain inhibition in the descending nociceptive regulatory system. A higher state of excitability of spinal nociceptive neurons as evidenced by lowered nociceptive flexion reflex R-III (NFR) threshold was reported for FMS patients. The NFR procedure has been shown to be a valuable tool to evaluate pharmacologically active therapeutic agents at the spinal level. OBJECTIVE: Serotonin-noradrenaline reuptake inhibitors have been shown to reduce pain in FMS patients possibly through descending monoaminergic pain pathways modulation. This randomized double-blind placebo-controlled trial assessed the pharmacodynamic activity of the dual-reuptake inhibitor milnacipran (MLN) at the spinal level by means of the objective spinal NFR. STUDY DESIGN: Randomized, double-blind, placebo-controlled trial. SETTING: A single academic medical center, outpatient setting. METHODS: Seven-week exposure (100, 150, 200mg/day) in women fibromyalgia patients. Evaluation consisted of extensive quantitative sensory testing including determination of the NFR threshold, self-reported standard questionnaires investigating pain, visual analog scales, fibromyalgia impact, health-related quality of life, depression and anxiety questionnaires, as well as the Patient's Global Impression of Change (PGIC). Analysis of covariance adjusted for baseline value was used for all endpoints. RESULTS: Seventy-seven (39 placebo, 38 milnacipran all doses) out of 80 randomized patients were available for analysis. The absence of influence of MLN (any dose) on the NFR surprisingly contrasted with the dose-dependent analgesic effect observed in MLN-treated patients with an adjusted change difference of -18.4mm (-30.9; -5.8) in pain reduction between placebo and the maximum dosage (200 mg) MLN groups (P = 0.02). Unchanged depression and anxiety scores confirmed the predominant selectivity of the analgesic effect of MLN on nociceptive pain pathway. Self-reported questionnaires consistently reflected the positive effects of MLN on quality of life and psychological well-being. Odds ratio 5.1 for PGIC responders (i.e. much/very much improved) was significantly in favor of MLN (P = 0.04). CONCLUSION: Milnacipran has a predominantly supraspinal analgesic effect as evidenced by the significant clinical benefits and the absence of changes in the nociceptive spinal reflex threshold. Higher dose was associated with higher pain reduction. Reported analgesia was independent of patients' emotional status.


Assuntos
Antidepressivos/uso terapêutico , Ciclopropanos/uso terapêutico , Fibromialgia/tratamento farmacológico , Dor/tratamento farmacológico , Doenças da Coluna Vertebral/tratamento farmacológico , Adulto , Idoso , Antidepressivos/administração & dosagem , Ciclopropanos/administração & dosagem , Método Duplo-Cego , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Milnaciprano , Medição da Dor/métodos , Resultado do Tratamento
18.
Clin Case Rep ; 1(1): 20-5, 2013 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-25356203

RESUMO

KEY CLINICAL MESSAGE: Ventricular arrhythmias induced by dasatinib are rare events, but physicians in charge of chronic myeloid leukemia patients should be aware of such potential complications and the need for regular ECG controls during treatment with tyrosine kinase inhibitors.

19.
Chimia (Aarau) ; 66(5): 296-9, 2012.
Artigo em Inglês | MEDLINE | ID: mdl-22867539

RESUMO

A pharmacokinetic/pharmacodynamic, randomized, crossover, placebo-controlled study was conducted in healthy human volunteers with the primary objective of exploring the existence of a positive interaction between paracetamol 1 g and ketorolac 20 mg intravenously on experimental pain models. Further, the simplified UVB model was validated as a screening tool for analgesics or a combination of analgesics in clinical drug development. It was observed that the UVB irradiation induced primary hyperalgesia, evidenced by significant decreases of the heat pain threshold from (mean ± SD) 46.9 ± 1.1 °C to 40.1 ± 1.7 °C (p <0.001) and of the mechanical pain threshold (62% decrease). A small intra- and inter-individual variability was observed as well as consistent intra-day stability for the heat pain threshold. The UVB irradiation also resulted in the development of an area of secondary hyperalgesia of 21.3 ± 11.3 cm(2). The mechanical pain threshold and area of secondary hyperalgesia showed small intra-individual variability and consistent intra-day stability. However, a greater variability was observed between subjects, which suggests that a crossover design would allow limiting the number of subjects.


Assuntos
Acetaminofen/uso terapêutico , Analgésicos não Narcóticos/uso terapêutico , Analgésicos/uso terapêutico , Anti-Inflamatórios não Esteroides/uso terapêutico , Cetorolaco/uso terapêutico , Queimadura Solar/tratamento farmacológico , Raios Ultravioleta/efeitos adversos , Acetaminofen/farmacocinética , Adulto , Analgésicos/farmacocinética , Analgésicos não Narcóticos/farmacocinética , Anti-Inflamatórios não Esteroides/farmacocinética , Estudos Cross-Over , Método Duplo-Cego , Combinação de Medicamentos , Estudos de Viabilidade , Humanos , Hiperalgesia/tratamento farmacológico , Injeções Intravenosas , Cetorolaco/farmacocinética , Masculino , Pessoa de Meia-Idade , Modelos Biológicos , Medição da Dor , Limiar da Dor/efeitos dos fármacos , Queimadura Solar/metabolismo , Adulto Jovem
20.
BMC Public Health ; 12: 370, 2012 May 23.
Artigo em Inglês | MEDLINE | ID: mdl-22621342

RESUMO

BACKGROUND: Cervix cancer, preventable, continues to be the third most common cancer in women worldwide, especially in lowest income countries. Prophylactic HPV vaccination should help to reduce the morbidity and mortality associated with cervical cancer. The purpose of the study was to describe the results of and key concerns in eight HPV vaccination programs conducted in seven lowest income countries through the Gardasil Access Program (GAP). METHODS: The GAP provides free HPV vaccine to organizations and institutions in lowest income countries. The HPV vaccination programs were entirely developed, implemented and managed by local institutions. Institutions submitted application forms with institution characteristics, target population, communication delivery strategies. After completion of the vaccination campaign (3 doses), institutions provided a final project report with data on doses administered and vaccination models. Two indicators were calculated, the program vaccination coverage and adherence. Qualitative data were also collected in the following areas: government and community involvement; communication, and sensitization; training and logistics resources, and challenges. RESULTS: A total of eight programs were implemented in seven countries. The eight programs initially targeted a total of 87,580 girls, of which 76,983 received the full 3-dose vaccine course, with mean program vaccination coverage of 87.8%; the mean adherence between the first and third doses of vaccine was 90.9%. Three programs used school-based delivery models, 2 used health facility-based models, and 3 used mixed models that included schools and health facilities. Models that included school-based vaccination were most effective at reaching girls aged 9-13 years. Mixed models comprising school and health facility-based vaccination had better overall performance compared with models using just one of the methods. Increased rates of program coverage and adherence were positively correlated with the number of vaccination sites. Qualitative key insights from the school models showed a high level of coordination and logistics to facilitate vaccination administration, a lower risk of girls being lost to follow-up and vaccinations conducted within the academic year limit the number of girls lost to follow-up. CONCLUSION: Mixed models that incorporate both schools and health facilities appear to be the most effective at delivering HPV vaccine. This study provides lessons for development of public health programs and policies as countries go forward in national decision-making for HPV vaccination.


Assuntos
Países em Desenvolvimento , Programas de Imunização , Vacinas contra Papillomavirus , Pobreza , Neoplasias do Colo do Útero/prevenção & controle , Ásia , Bolívia , Camarões , Criança , Feminino , Haiti , Humanos , Lesoto , Avaliação de Programas e Projetos de Saúde , Pesquisa Qualitativa
SELEÇÃO DE REFERÊNCIAS
DETALHE DA PESQUISA