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1.
Breast ; 63: 108-112, 2022 Jun.
Article in English | MEDLINE | ID: mdl-35366504

ABSTRACT

BACKGROUND: People with advanced breast cancer (ABC) in New Zealand (NZ) have a poorer five-year survival than their peers in other developed countries. Comparisons of ABC care in NZ with other countries suggest that NZ is sometimes out of line with international standards and that inequities exist within the NZ healthcare system. Our aim was to develop nationwide consensus guidelines for diagnosis and treatment of ABC that are uniquely suited for the NZ context and can be applied across the nation. We describe the process of creating, voting on, and disseminating the guidelines, and provide insight into how we can better optimize these processes for the NZ context in the future. METHODS: The ABC5 ESO-ESMO consensus guidelines were used and adapted to the NZ clinical context. A panel of breast cancer clinicians voted on these guidelines using the same model of membership representation as ABC5. OUTCOME: Overall consensus was equally high between ABC5 and ABC-NZ. Four NZ specific guidelines were introduced. The European-style panel discussion needs some adaptations for the NZ situation and a wider and more thorough consultation process, before voting begins, is preferred. The NZ Breast Special Interest Group has endorsed and agreed to take ownership of these and future guidelines and to facilitate the next iteration of the ABC-NZ guidelines meeting. CONCLUSIONS: The process was successful in creating the guidelines but can be improved in future meetings to streamline the process of creating and updating guidelines in the manner most suited to the NZ context and audience.


Subject(s)
Breast Neoplasms , Female , Humans , Consensus , New Zealand , Practice Guidelines as Topic
2.
Rev Sci Tech ; 39(1): 299-310, 2020 Apr.
Article in English | MEDLINE | ID: mdl-32729557

ABSTRACT

This paper provides an overview of the importance of transparency at the World Trade Organization, a basic principle that translates into notification obligations. In particular, the paper details the related obligations under the Agreement on the Application of Sanitary and Phytosanitary Measures, and how it applies to trade in animals and animal products.


Les auteurs offrent une vue d'ensemble du rôle joué par la transparence au sein de l'Organisation mondiale du commerce, principe de base qui se traduit par une obligation de notification. En particulier, ils précisent les obligations prévues en vertu de l'Accord sur l'application des mesures sanitaires et phytosanitaires et la manière dont ce principe s'applique aux échanges internationaux d'animaux et de produits d'origine animale.


Los autores explican la importancia que dentro de la Organización Mundial del Comercio reviste la transparencia, un principio básico que se traduce en obligaciones de notificación. En particular, describen en detalle las obligaciones que en este sentido impone el Acuerdo sobre la Aplicación de Medidas Sanitarias y Fitosanitarias y cómo se aplica dicho principio al comercio de animales y productos de origen animal.


Subject(s)
Commerce , International Cooperation , Animals , Organizations
3.
IEEE J Transl Eng Health Med ; 6: 2100611, 2018.
Article in English | MEDLINE | ID: mdl-29984117

ABSTRACT

Pressure ulcers (PU) are known to be a high-cost disease with a risk of severe morbidity. This paper evaluates a new clinical strategy based on an innovative medical device [Tongue Display Unit (TDU)] that implements perceptive supplementation in order to reduce prolonged excessive pressure, recognized as one of the main causes of PU. A randomized, controlled, and parallel-group trial was carried out with 12 subjects with spinal cord injuries (SCI). Subjects were assigned to the control (without TDU, [Formula: see text]) or intervention (with TDU, [Formula: see text]) group. Each subject took part in two sessions, during which the subject, seated on a pressure map sensor, watched a movie for one hour. The TDU was activated during the second session of the intervention group. Intention-to-treat analysis showed that the improvement in adequate weight shifting between the two sessions was higher in the intervention group (0.84 [0.24; 0.89]) than in the control group (0.01 [-0.01; 0.09]; [Formula: see text]) and that the ratio of prolonged excessive pressure between the two sessions was lower in the intervention group (0.74 [0.37; 1.92]) than in the control group (1.72 [1.32; 2.56]; [Formula: see text]). The pressure map sensor was evaluated as being convenient for use in daily life; however, this was not the case for the TDU. This paper shows that persons with SCI could benefit from a system based on perceptive supplementation that alerts and guides the user on how to adapt their posture in order to reduce prolonged excessive pressure, one of the main causes of PU.

4.
Rev Neurol (Paris) ; 173(4): 216-221, 2017 Apr.
Article in English | MEDLINE | ID: mdl-28377089

ABSTRACT

BACKGROUND: Since 2015, the emergence of mechanical thrombectomy as standard care in acute stroke has involved organizational changes not only for stroke centers, but also for entire emergency regional networks. The aim of our study was to assess the proportion of ischemic stroke patients, admitted to stroke units in the Northern French Alps within the first 6h of onset, eligible for thrombectomy. METHODS: This study retrospectively analyzed the clinical and radiological data of all acute stroke patients hospitalized at three stroke units of the Northern French Alps Emergency Network (RENAU) in 2014. Eligible patients had proximal arterial occlusions of the anterior and posterior cerebral circulation, as confirmed by brain imaging, which could be treated by thrombectomy within 6h of symptom onset. RESULTS: Of the 435 cases of acute ischemic stroke, 152 patients were treated by intravenous thrombolysis (IV rtPA). Of these patients, 83 (55%) had intracranial occlusions and were eligible for combined thrombectomy. Of the 283 patients not treatable by IV rtPA, 32 patients (11%) were eligible for primary thrombectomy. CONCLUSION: Thrombectomy could be performed in 26% of our acute ischemic stroke patients (n=115/435), and a large increase in endovascular procedures is expected over the next few years that will require close collaboration among all partners in the emergency networks. Using our RENAU stroke database, it will be possible to compare various factors contributing to effective activity.


Subject(s)
Stroke/surgery , Thrombectomy/statistics & numerical data , Aged , Brain Ischemia/drug therapy , Cerebrovascular Circulation , Databases, Factual , Eligibility Determination , Female , Fibrinolytic Agents/administration & dosage , Fibrinolytic Agents/therapeutic use , France/epidemiology , Humans , Magnetic Resonance Angiography , Male , Middle Aged , Registries , Retrospective Studies , Stroke/drug therapy , Stroke/epidemiology , Thrombolytic Therapy , Time-to-Treatment , Treatment Outcome
5.
Rev Neurol (Paris) ; 170(12): 779-98, 2014 Dec.
Article in English | MEDLINE | ID: mdl-25459115

ABSTRACT

Stroke is the second leading cause of death worldwide and the most common cause of severe disability. Neuroprotection and repair mechanisms supporting endogenous brain plasticity are often insufficient to allow complete recovery. While numerous neuroprotective drugs trials have failed to demonstrate benefits for patients, they have provided interesting translational research lessons related to neurorestorative therapy mechanisms in stroke. Stroke damage is not limited to neurons but involve all brain cell type including the extracellular matrix in a "glio-neurovascular niche". Targeting a range of host brain cells, biotherapies such as growth factors and therapeutic cells, currently hold great promise as a regenerative medical strategy for stroke. These techniques can promote both neuroprotection and delayed neural repair through neuro-synaptogenesis, angiogenesis, oligodendrogliogenesis, axonal sprouting and immunomodulatory effects. Their complex mechanisms of action are interdependent and vary according to the particular growth factor or grafted cell type. For example, while "peripheral" stem or stromal cells can provide paracrine trophic support, neural stem/progenitor cells (NSC) or mature neurons can act as more direct neural replacements. With a wide therapeutic time window after stroke, biotherapies could be used to treat many patients. However, guidelines for selecting the optimal time window, and the best delivery routes and doses are still debated and the answers may depend on the chosen product and its expected mechanism including early neuroprotection, delayed neural repair, trophic systemic transient effects or graft survival and integration. Currently, the great variety of growth factors, cell sources and cell therapy products form a therapeutic arsenal that is available for stroke treatment. Their effective clinical use will require prior careful considerations regarding safety (e.g. tumorgenicity, immunogenicity), potential efficacy, cell characterization, delivery route and in vivo biodistribution. Bone marrow-derived cell populations such as mesenchymal stromal/stem cells (MSC) or mononuclear cells (MNC), umbilical cord stem cells and NSC are most investigated notably in clinical trials. Finally, we discuss perspectives concerning potential novel biotherapies such as combinatorial approaches (growth factor combined with cell therapy, in vitro optimization of cell products, or co-transplantation) and the development of biomaterials, which could be used as injectable hydrogel scaffold matrices that could protect a cell graft or selectively deliver drugs and growth factors into the post-stroke cavity at chronic stages. Considering the remaining questions about the best procedure and the safety cautions, we can hope that future translational research about biotherapies will bring more efficient treatments that will decrease post-stroke disability for many patients.


Subject(s)
Biological Therapy/methods , Stroke/therapy , Animals , Cell- and Tissue-Based Therapy/adverse effects , Cell- and Tissue-Based Therapy/methods , Humans , Intercellular Signaling Peptides and Proteins/therapeutic use , Neural Stem Cells/cytology , Neural Stem Cells/transplantation , Neuroprotective Agents/therapeutic use , Stem Cell Transplantation/adverse effects , Stem Cells/cytology , Translational Research, Biomedical
6.
J Neurol ; 261(8): 1461-8, 2014 Aug.
Article in English | MEDLINE | ID: mdl-24221642

ABSTRACT

Stroke is a leading cause of serious long-term disability in adults and is the second leading cause of death worldwide. Early reperfusion and neuroprotection techniques have been the focus of much effort with the aim of very acute treatment of the stroke. Targeting different mechanisms, pharmacological therapies have the potential to reduce disability in a large fraction of patients who survive the acute stroke. The brain's capacity to reorganize after stroke through plasticity mechanisms can be modulated by pharmacological agents. A number of therapeutic interventions are under study, including small molecules, growth factors, and monoclonal antibodies. Recently it has been shown that the SSRI fluoxetine improved motor deficit in patients with ischaemic stroke and hemiplegia which appeared to be independent of the presence of depression. In this context, it is of major importance to support innovative research in order to promote the emergence of new pharmacological treatments targeting neurological recovery after stroke, as opposed to acute de-occlusion and neuroprotection. This paper is the work of a group of 14 scientists with aim of (1) addressing key areas of the basic and clinical aspects of human brain plasticity after stroke and potential pharmacological targets for recovery, (2) asking questions about the most appropriate characteristics of clinical trials testing drugs in post stroke recovery and (3) proposing recommendations for future clinical trials.


Subject(s)
Clinical Trials as Topic , Neuroprotective Agents/therapeutic use , Recovery of Function/drug effects , Stroke/drug therapy , Clinical Trials as Topic/methods , Clinical Trials as Topic/standards , Clinical Trials as Topic/trends , Humans
7.
Eur J Neurol ; 20(7): 1094-100, 2013 Jul.
Article in English | MEDLINE | ID: mdl-23560508

ABSTRACT

BACKGROUND AND PURPOSE: A cost of illness study was undertaken on behalf of the French Ministry of Health to estimate the annual cost of stroke in France with the goal of better understanding the current economic burden so that improved strategies for care may be developed. METHODS: Using primary data from exhaustive national databases and both top-down and bottom-up approaches, the stroke-related costs for healthcare, nursing care and lost productivity were estimated. RESULTS: The total healthcare cost of stroke patients in France in 2007 was €5.3 billion, 92% of which was borne by statutory health insurance. The average cost of incident cases was €16 686 per patient in the first year, while the annual cost of prevalent cases was a little less than half that amount (€8099). Nursing care costs were estimated at €2.4 billion. Lost productivity reached €255.9 million and that income loss for stroke patients was partially compensated by €63.3 million in social benefit payments. CONCLUSIONS: With healthcare costs representing 3% of total health expenditure in France, stroke constitutes an ongoing burden for the health system and overall economy. Nursing care added nearly half again the amount spent on healthcare, while productivity losses were more limited because nearly 80% of acute incident strokes were in patients over age 65. The high cost of illness underscores the need for improved prevention and interventions to limit the disabling effects of stroke.


Subject(s)
Cost of Illness , Stroke/economics , France/epidemiology , Health Care Costs , Humans , Incidence , Insurance, Health/economics , Nursing Care/statistics & numerical data , Prevalence , Stroke/epidemiology
8.
Int J Stroke ; 8(8): 652-6, 2013 Dec.
Article in English | MEDLINE | ID: mdl-22813096

ABSTRACT

BACKGROUND: Although the established measure of disability post stroke, the modified Rankin Scale emphasizes motor function and may underestimate the importance of cognitive impairment in more disabled patients. A subset of four items from the National Institutes of Health Stroke Scale has been proposed to assess cognitive function after stroke (Cog-4), and to correlate with modified Rankin Scale. Items correspond to orientation, executive function, language, and inattention. We investigated responsiveness of Cog-4 to treatment with thrombolysis and whether it offers information that supplements modified Rankin Scale. METHODS: We included 6268 patients from the Virtual International Stroke Trials Archive: 2734 received intravenous thrombolysis and 3534 were treated conservatively. We compared day 90 outcomes between treated and untreated groups, by modified Rankin Scale (illustrative) and by Cog-4 (primary measure) adjusting for age, baseline National Institutes of Health stroke scale, hemispheric lateralisation as well as baseline Cog-4 and baseline National Institutes of Health Stroke Scale excluding baseline Cog-4 separately. Analysis of Cog-4 was repeated within strata of 90 day modified Rankin Scale. Statistical analyses included proportional odds logistic regression and Cochran-Mantel-Haenszel test. RESULTS: Modified Rankin Scale showed a difference between treatment groups of expected magnitude (odds ratio 1·56; 95% confidence interval 1·43-1·72; P < 0·001). After adjustment for imbalance in baseline prognostic factors, the distribution of Cog-4 scores at 90 days was better in thrombolysed patients compared with nonthrombolysed patients (odds ratio 1·31; 95% confidence interval 1·18-1·47; P = 0·006). However, Cog-4 analysis stratified by 90-day modified Rankin Scale was neutral between treatment groups (OR 1·01; 95% CI 0·90-1·14), and Cog-4 was not responsive to treatment group even within modified Rankin Scale categories 4 and 5 despite substantial cognitive deficits in these patients. CONCLUSION: Although Cog-4 may be responsive to treatment effects, it does not provide additional information beyond modified Rankin Scale assessment.


Subject(s)
Cognition Disorders/diagnosis , Cognition Disorders/etiology , Stroke/complications , Stroke/psychology , Aged , Female , Humans , Male , Neuropsychological Tests , Stroke/drug therapy , Thrombolytic Therapy
9.
Diabetes Metab ; 38(6): 544-9, 2012 Dec.
Article in English | MEDLINE | ID: mdl-23062594

ABSTRACT

OBJECTIVE: This pilot study aimed to compare metabolic disturbances, particularly insulin resistance (IR) and cardiovascular risk factors (CRFs), following two types of acute vascular atherothrombotic disease events: ischaemic atherothrombotic stroke (AS); and acute coronary syndrome (ACS). DESIGN AND METHODS: A total of 110 non-diabetic patients presenting with either AS (n=55) or ACS (n=55) were included in our prospective comparative study, and matched for age and gender. IR was determined using the homoeostasis model assessment of insulin resistance (HOMA-IR) method, and each patient's personal and family history were also recorded. RESULTS: IR was significantly higher in the ACS vs AS group (HOMA-IR index 2.17±1.90 vs 1.50±0.81, respectively; P=0.03). The AS group had a significantly higher prevalence of personal history of hypertension (51% vs 31%; P=0.03), while current smoking was more prevalent in the ACS group (30% vs 18%; P=0.04). There were no significant differences between the two groups as regards any other CRFs. CONCLUSION: The distribution of CRFs varied depending on the vascular event, and metabolic disturbances differed according to the atherothrombotic disease. IR was greater after ACS than AS.


Subject(s)
Acute Coronary Syndrome/metabolism , Insulin Resistance , Plaque, Atherosclerotic/metabolism , Stroke/metabolism , Acute Coronary Syndrome/pathology , Aged , Female , Humans , Male , Metabolic Syndrome/metabolism , Metabolic Syndrome/pathology , Middle Aged , Plaque, Atherosclerotic/pathology , Prevalence , Prospective Studies , Stroke/pathology , Thrombosis/metabolism , Thrombosis/pathology
10.
Parasite Immunol ; 33(3): 145-57, 2011 Mar.
Article in English | MEDLINE | ID: mdl-21306398

ABSTRACT

Merozoite surface protein 2 (MSP-2), a very immunogenic malaria antigen, is a highly polymorphic 45-53 kDa merozoite surface protein, which is regarded as a promising vaccine candidate. The highly polymorphic nature of MSP-2 suggests that the molecule can be involved in protective immunity against malaria. The antibody responses to MSP-2 antigen are mostly directed against polymorphic and dimorphic regions of the protein. The current study aimed at testing the reactivity of human sera from a malaria-endemic area of Gambia against MSP-2 regions 2, 3 and 4 compared to crude schizont extract in a period of 20 years. The age-dependent immunity was analysed in a manner of cross-sectional study (the data of the first visit) and also a longitudinal study design (analysing the data at four different time points from 1960 to 1980) testing the sera of 178 individuals randomly selected from the Keneba Serum Collection by using MSP-2 recombinant protein. The total IgG responses were measured by ELISA. Kolmogorov-Smirnov was used to check the normal distribution of OD, Hb and parasitaemia, and then Spearman correlation was applied to analyse the data. Most sera recognized, predominantly, the variable regions of the MSP-2, particularly the domain 3. The IgG response against all the antigens increased with age. The IgG responses against domain 3 of MSP-2 were associated with an increase in haemoglobin levels but a decrease in parasitaemia, suggesting that this immune response may be one of the most useful means for further studies on protective immunity against malaria.


Subject(s)
Antibodies, Protozoan/blood , Antigens, Protozoan/immunology , Plasmodium falciparum/immunology , Protozoan Proteins/immunology , Adolescent , Adult , Age Factors , Aged , Aged, 80 and over , Child , Child, Preschool , Cross-Sectional Studies , Enzyme-Linked Immunosorbent Assay , Female , Gambia , Humans , Immunoglobulin G/blood , Infant , Infant, Newborn , Longitudinal Studies , Male , Middle Aged , Young Adult
11.
Ann Oncol ; 20(12): 1993-9, 2009 Dec.
Article in English | MEDLINE | ID: mdl-19570964

ABSTRACT

BACKGROUND: Primary breast lymphoma (PBL) of low-grade histology is a rare disease. This multicentric retrospective study was carried out to determine clinical features, prognosis and relapse. PATIENTS AND METHODS: Patients with histologically proven, previously untreated follicular or marginal-zone PBL (MZL PBL) diagnosed from 1980 to 2003 were included in the study. Major end points were progression-free survival (PFS), overall survival (OS) and potential prognostic factors. RESULTS: We collected data on 60 cases of PBL [36 follicular and 24 marginal-zone lymphoma (MZL)]. Stage was I(E) or II(E) in 57 patients and IVE in three patients due to bilateral breast involvement. Surgery, chemotherapy and radiotherapy (RT), alone or in combination, were used as first-line treatments in 67%, 42% and 52% of patients, respectively. Overall response rate was 98%, with a 93% complete response rate. Five-year PFS were 56% for MZL and 49% for follicular PBL (P = 0.62). Relapses were mostly in distant sites (18 of 23 cases); no patients relapsed within RT fields. CONCLUSIONS: Our data showed an indolent behaviour of MZL PBL, comparable to other primary extranodal MZL. Conversely, patients with follicular PBL had inferior PFS and OS when compared with limited-stage nodal follicular non-Hodgkin's lymphomas, suggesting an adverse prognostic role of primary breast localisation in this histological subgroup.


Subject(s)
Breast Neoplasms, Male/pathology , Breast Neoplasms/pathology , Lymphoma, B-Cell, Marginal Zone/pathology , Lymphoma, Follicular/pathology , Breast Neoplasms/diagnosis , Breast Neoplasms/therapy , Breast Neoplasms, Male/diagnosis , Breast Neoplasms, Male/therapy , Female , Humans , Lymphoma, B-Cell, Marginal Zone/diagnosis , Lymphoma, B-Cell, Marginal Zone/therapy , Lymphoma, Follicular/diagnosis , Lymphoma, Follicular/therapy , Male , Prognosis , Treatment Outcome
12.
J Neurol Neurosurg Psychiatry ; 80(8): 876-80, 2009 Aug.
Article in English | MEDLINE | ID: mdl-19357128

ABSTRACT

BACKGROUND AND AIMS: Social functioning is impaired in approximately two-thirds of stroke patients of vocational age, even several months after a first ever mild to moderate stroke. The known predictors of social functioning are initial stroke severity, anxiety and depression, and the Mini-Mental State Evaluation, suggesting that cognitive deficits contribute to post-stroke social dysfunctioning. The aim of this study was to evaluate whether cognitive domains correlated with social functioning and to determine the cognitive predictors of social dysfunctioning. METHODS: 74 patients were prospectively included 6 months after a first ever stroke. National Institutes of Health Stroke Scale (NIHSS), modified Rankin scale, depression and anxiety were recorded. Social functioning was recorded using the Work and Social Adjustment Scale (WSAS). An extensive neuropsychological test battery explored general cognitive functioning, episodic memory, instrumental functions, executive functions and working memory. Univariate comparisons assessed the relationships between the neuropsychological tests and scores on the WSAS. Predicting factors for WSAS were determined using ordinal logistic regression. RESULTS: 52 patients (70%; 95% confidence interval 58% to 80%) complained of significant perturbations in work and social functioning. In univariate comparisons, general cognitive functioning, memory, instrumental functions, executive functions and working memory significantly correlated with social functioning. Working memory was the most affected domain. With multivariate modelling, the NIHSS at admission, Hospital Anxiety Depression scale and Owen's Spatial Working Memory test were independent predictors of WSAS. CONCLUSIONS: All cognitive domains were associated with social functioning, working memory being the main cognitive determinant. Our results suggest that cognitive impairment impacts on social dysfunctioning, which is known to be a component of quality of life.


Subject(s)
Cognition/physiology , Social Behavior , Stroke/psychology , Adult , Aged , Data Interpretation, Statistical , Depression/etiology , Depression/psychology , Female , Humans , Logistic Models , Magnetic Resonance Imaging , Male , Memory/physiology , Memory, Short-Term/physiology , Middle Aged , Neuropsychological Tests , Odds Ratio , Psychomotor Performance/physiology , Young Adult
13.
J Neurol Neurosurg Psychiatry ; 80(4): 371-5, 2009 Apr.
Article in English | MEDLINE | ID: mdl-19010942

ABSTRACT

BACKGROUND: With improvements in stroke treatments, the number of patients with dramatic recovery is increasing. However, many of them are still complaining of difficulties in returning to work and every day activities. The aim was to assess work and social dysfunctioning in patients with minor to moderate stroke and explore its contributing factors. METHODS: Consecutive patients were prospectively included at a median 7 months after a first-ever stroke. Scores on the Work and Social Adjustment Scale (WSAS), a generic self-reported scale for assessing social functioning, were correlated with scores on the National Institutes of Health Stroke Scale (NIHSS), activities of daily living, Hospital Anxiety and Depression scale (HAD) and MMSE, Iowa Scale of Personality Changes and return to work at 1 year. RESULTS: Among the 84 included patients (mean age 43.5 years), 57 (68%; 95% CI 57 to 78%) complained of significant perturbation of functioning attributed to stroke. WSAS was highly significantly related to modified Rankin scale, daily living activities, Iowa Scale of Personality Changes and return to work at 1 year. Using ordinal logistic regression, the contributors to WSAS were initial neurological severity (NIHSS at admission), HAD and MMSE. CONCLUSIONS: The study showed that up to 68% of our patients complained of significant work and social dysfunction due to stroke, despite a good clinical outcome. This self-estimation was correlated to external validation criteria, stressing the high burden of stroke from the patient's viewpoint. Moreover, when compared across diseases, social dysfunctioning after mild stroke was as important as in other major disabling diseases.


Subject(s)
Social Behavior Disorders/etiology , Social Behavior Disorders/psychology , Stroke/complications , Stroke/psychology , Activities of Daily Living , Adolescent , Adult , Aged , Data Interpretation, Statistical , Female , Humans , Logistic Models , Magnetic Resonance Imaging , Male , Middle Aged , Neuropsychological Tests , Personality Tests , Prognosis , Prospective Studies , Psychometrics , Social Adjustment , Social Behavior , Work , Young Adult
14.
Eur Respir J ; 32(6): 1652-5, 2008 Dec.
Article in English | MEDLINE | ID: mdl-19043011

ABSTRACT

Patients with bronchial tree lesions feature, in particular, a high risk for developing bronchial fistulae after surgical repair when the clinical situation is complicated by acute lung injury (ALI)/acute respiratory distress syndrome (ARDS) and mechanical ventilation is needed. The current authors hypothesised that extracorporeal carbon dioxide removal would significantly decrease inspiratory airway pressures, thus promoting the protection of surgical bronchial reconstruction. Four patients were studied after surgical reconstruction of bronchial fistulae in whom ALI/ARDS developed and mechanical ventilation with positive end-expiratory pressure was required. Gas exchange, tidal volumes, airway pressures, respiratory frequency, vasopressor and sedation requirements were analysed before and after initiation of a pumpless extracorporeal lung assist device (pECLA; NovaLung, Talheim, Germany). Initiation of pECLA treatment enabled a reduction of inspiratory plateau airway pressures from 32.4 to 28.6 cmH(2)O (3.2 to 2.8 kPa), effectively treated hypercapnia (from 73.6 to 53.4 mmHg (9.8 to 7.1 kPa)) and abolished respiratory acidosis (from pH 7.24 to 7.41). All patients survived and were discharged to rehabilitation clinics. In patients after surgical bronchial reconstruction that was complicated by acute lung injury/acute respiratory distress syndrome, use of pumpless extracorporeal carbon dioxide removal was safe and efficient. Initiation of a pumpless extracorporeal lung assist device enabled a less invasive ventilator management, which may have contributed to healing of surgical bronchial repair.


Subject(s)
Bronchial Fistula/therapy , Respiratory Distress Syndrome/therapy , Adult , Bronchi/surgery , Bronchial Fistula/complications , Carbon Dioxide/metabolism , Extracorporeal Membrane Oxygenation/methods , Female , Humans , Hydrogen-Ion Concentration , Male , Middle Aged , Pressure , Pulmonary Gas Exchange , Respiration, Artificial/methods , Respiratory Distress Syndrome/complications , Treatment Outcome
15.
J Int Med Res ; 36(2): 211-21, 2008.
Article in English | MEDLINE | ID: mdl-18380929

ABSTRACT

Despite considerable research and constantly emerging treatment modalities, the mortality associated with acute respiratory distress syndrome (ARDS) has remained virtually unchanged over the last decade. Clinical studies have been unable to show a reduction in mortality for most therapeutic interventions except for low tidal volume ventilation. Failure to prove a mortality benefit might be a result of the varying severity of ARDS in the patients studied. Nevertheless, positive responses to single supportive measures (inhaled nitric oxide, prone positioning and extracorporeal membrane oxygenation) have been demonstrated in multiple trials. Criteria for administration, weaning and discontinuation of these supportive interventions have never been described in detail. In this context, implementation of an evidence-based algorithm might facilitate clinical management of severe ARDS. This review summarizes the current evidence base and proposes a new treatment algorithm that aims to prioritize the administration of advanced strategies in a multimodal approach for ARDS.


Subject(s)
Algorithms , Evidence-Based Medicine/methods , Respiratory Distress Syndrome/therapy , Combined Modality Therapy , Evidence-Based Medicine/trends , Humans , Respiratory Distress Syndrome/diagnosis , Respiratory Distress Syndrome/physiopathology , Severity of Illness Index
17.
Prog Biophys Mol Biol ; 97(1): 54-9, 2008 May.
Article in English | MEDLINE | ID: mdl-18207221

ABSTRACT

Migraine with aura is a complex phenomena, which remains still not completely understood. A striking fact is that its clinical manifestations may change from one patient to another. Migraine with aura may only consist in visual hallucinations, but may as well go on to temporary aphasy. However, for all the patients it always stops before it goes from area 3 to area 4, thus just before crossing Rolando sulcus. In this paper, we give arguments showing that the detailed geometry of Rolando sulcus in human cortex may by itself explain that migraine attack never crosses Rolando sulcus.


Subject(s)
Cerebral Cortex/physiopathology , Cortical Spreading Depression , Migraine Disorders/physiopathology , Models, Neurological , Nerve Net/physiopathology , Synaptic Transmission , Animals , Computer Simulation , Humans
18.
Ann Oncol ; 19(2): 233-41, 2008 Feb.
Article in English | MEDLINE | ID: mdl-17932394

ABSTRACT

BACKGROUND: Primary diffuse large B-cell lymphoma (DLBCL) of breast is rare. We aimed to define clinical features, prognostic factors, patterns of failure, and treatment outcomes. PATIENTS AND METHODS: A retrospective international study of 204 eligible patients presenting to the International Extranodal Lymphoma Study Group-affiliated institutions from 1980 to 2003. RESULTS: Median age was 64 years, with 95% of patients presenting with unilateral disease. Median overall survival (OS) was 8.0 years, and median progression-free survival 5.5 years. In multifactor analysis, favourable International Prognostic Index score, anthracycline-containing chemotherapy, and radiotherapy (RT) were significantly associated with longer OS (each P < or = 0.03). There was no benefit from mastectomy, as opposed to biopsy or lumpectomy only. At a median follow-up time of 5.5 years, 37% of patients had progressed--16% in the same or contralateral breast, 5% in the central nervous system, and 14% in other extranodal sites. CONCLUSIONS: The combination of limited surgery, anthracycline-containing chemotherapy, and involved-field RT produced the best outcome in the pre-rituximab era. A prospective trial on the basis of these results should be pursued to confirm these observations and to determine whether the impact of rituximab on the patterns of relapse and outcome parallels that of DLBCL presenting at other sites.


Subject(s)
Breast Neoplasms/mortality , Breast Neoplasms/pathology , Lymphoma, Large B-Cell, Diffuse/mortality , Lymphoma, Large B-Cell, Diffuse/pathology , Neoplasm Recurrence, Local/mortality , Adolescent , Adult , Aged , Aged, 80 and over , Breast Neoplasms/therapy , Combined Modality Therapy , Disease-Free Survival , Female , Humans , Immunohistochemistry , International Cooperation , Lymphoma, Large B-Cell, Diffuse/therapy , Middle Aged , Multicenter Studies as Topic , Neoplasm Recurrence, Local/pathology , Neoplasm Staging , Probability , Prognosis , Retrospective Studies , Risk Assessment , Societies, Medical , Survival Analysis
19.
Prog Biophys Mol Biol ; 97(1): 4-27, 2008 May.
Article in English | MEDLINE | ID: mdl-18063019

ABSTRACT

In this paper, we establish a new global phenomenological model of ischemic stroke. It takes into account local ischemia, energy reduction, propagation of spreading depressions (SD), damages to the cells and cellular death by apoptosis or necrosis. The spatial diffusion of the ions in the extracellular space which triggers the propagation of SD is a central point here. First we expose the various biological hypotheses that we have made in this model, and then we explain how to determine the parameters and solve the system of equations that we obtain. Next we present some results of this model: we simulate a KCl injection and then a local ischemia. Finally we discuss results and propose some improvements for this model.


Subject(s)
Apoptosis , Brain Ischemia/physiopathology , Brain/physiopathology , Cerebrovascular Circulation , Cortical Spreading Depression , Models, Neurological , Stroke/physiopathology , Animals , Brain Ischemia/complications , Computer Simulation , Humans , Stroke/etiology
20.
Med Trop (Mars) ; 67(5): 505-12, 2007 Oct.
Article in French | MEDLINE | ID: mdl-18225737

ABSTRACT

The Malaria Workshop organized by Institut Pasteur de Madagascar is an original course that applies innovative concepts to training of health professionals involved in malaria control in endemic countries. Course objectives are to enhance the skills needed to fight malaria (transversal competencies, critical approach, and position statement), to reinforce project cycle management proficiency, and to demonstrate how the Internet can be used as a source of documentation to compensate for geographical isolation. The Malaria Workshop is a six-consecutive-week full-day course that has been presented once a year since 2003. Seventy-six researchers, physicians or health ministry officials have already benefited from this training. Teaching methods emphasize andragogy that facilitates a learner/mentor relationship promoting exchange rather than transmission of knowledge and problem-based learning that engages learners to take an active part in gathering information. These methods in combination with the diverse backgrounds and experience of course participants foster a positive dynamic environment for learning that is monitored by weekly progress evaluation. Follow-up surveys have confirmed the positive effect of this training on the professional performance of former participants who become more involved in program development and fund-raising efforts. A professional network is growing and learners are starting to their experience. In this report workshop organizers describe the course's origins and concepts and present the conclusions drawn based on the first five yearly sessions.


Subject(s)
Health Personnel/education , Malaria/prevention & control , Curriculum , Endemic Diseases/prevention & control , Humans , Madagascar , Problem-Based Learning
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