RESUMEN
BACKGROUND: Although antiretroviral therapy (ART) has reduced the risk of Kaposi sarcoma (KS), KS cases still occur in HIV-infected people. OBJECTIVE: To describe all KS cases observed between 2010 and 2015 in a country with high ART coverage. METHODS: Retrospective study using longitudinal data from 44 642 patients in the French Dat'AIDS multicenter cohort. Patients' characteristics were described at KS diagnosis according to ART exposure and to HIV-plasma viral load (HIV-pVL) (≤50 or >50) copies/mL. RESULTS: Among the 209 KS cases diagnosed during the study period, 33.2% occurred in ART naïve patients, 17.3% in ART-experienced patients and 49.5% in patients on ART, of whom 23% for more than 6 months. Among these patients, 24 (11.5%) had HIV-pVL ≤50 cp/mL, and 16 (66%) were treated with a boosted-PI-based regimen. The distribution of KS localization did not differ by ART status nor by year of diagnosis. LIMITATIONS: Data on human herpesvirus 8, treatment modalities for KS and response rate were not collected. CONCLUSION: Half of KS cases observed in the study period occurred in patients not on ART, reflecting the persistence of late HIV diagnosis. Factors associated with KS in patients on ART with HIV-pVL ≤50 cp/mL remain to be explored.
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Síndrome de Inmunodeficiencia Adquirida , Infecciones por VIH , Herpesvirus Humano 8 , Sarcoma de Kaposi , Infecciones por VIH/complicaciones , Infecciones por VIH/tratamiento farmacológico , Infecciones por VIH/epidemiología , Humanos , Estudios Retrospectivos , Sarcoma de Kaposi/epidemiologíaRESUMEN
BACKGROUND: HIV pre-exposure prophylaxis (PrEP) was implemented in France in November 2015 based on individual-level risk factors for HIV infection. We evaluated the proportion of missed opportunities for PrEP among newly HIV-diagnosed people entering the Dat'AIDS cohort in 2016. METHODS: Multicenter retrospective analysis in 15 French HIV clinical centers of patients with a new diagnosis of HIV infection. Among them we differentiated patients according to the estimated date of infection: those occurring in the PrEP area (a previous negative HIV test in the last 12 months or those with an incomplete HIV-1 western blot (WB) with no HIV-1 anti-Pol-antibody at time of HIV diagnosis) and those in the pre-PrEP area (older infections). Epidemiological, biological and clinical data at HIV diagnosis were collected. Clinicians retrospectively identified potential eligibility for PrEP based on individual-level risk factors for HIV infection among those infected in the PrEP area. RESULTS: Among 966 patients with a new HIV diagnosis, 225 (23.3%) were infected in the PrEP area and 121 (53.8%) had complete data allowing evaluation of PrEP eligibility. Among them, 110 (91%) would have been eligible for PrEP, median age 31 years, with 68 (75.6%) born in France and 10 (11.1%) in Central/West Africa, with more than one previous STI in 19 (15.7%). The main eligibility criteria for PrEP were being a man who had sex with men or transgender 91 (82.7%) with at least one of the following criteria: unprotected anal sex with ≥2 partners in the last 6 months: 67 (60.9%); bacterial sexually transmitted infection in the last 12 months: 33 (30%); Use of psychoactive substances in a sexual context (chemsex): 16 (14.5%). PrEP was indicated for other HIV risk factors in 25 (22.7%). CONCLUSION: With 91% (110/121) of patients infected in the PrEP area eligible for PrEP, this study highlights the high potential of PrEP in avoiding new infection in France but also shows a persistent delay in HIV testing. Thus, an important limit on PrEP implementation in France could be insufficient screening and care access.
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Fármacos Anti-VIH/uso terapéutico , Infecciones por VIH/prevención & control , Profilaxis Pre-Exposición , Serodiagnóstico del SIDA , Adulto , África Occidental , Estudios de Cohortes , Diagnóstico Tardío , Femenino , Francia , VIH-1 , Homosexualidad Masculina , Humanos , Masculino , Persona de Mediana Edad , Estudios Retrospectivos , Conducta Sexual , Parejas Sexuales , Personas Transgénero , Sexo InseguroRESUMEN
OBJECTIVES: To quantify within a cohort of HIV-infected individuals the number of medical visits and procedures to be carried out according to comorbidities and risk factors to implement a personalized care pathway. PATIENTS AND METHODS: Retrospective study of 915 patients consulting from January 1 to December 31, 2016 at an outpatient unit of multidisciplinary consultations, using an electronic patient record. We built an algorithm using parameters required for the application of the national guidelines for the management of HIV-infected individuals. The frequency of comorbidities was measured according to gender, transmission risk group, and nadir CD4 (
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Vías Clínicas , Adhesión a Directriz/estadística & datos numéricos , Infecciones por VIH , Pautas de la Práctica en Medicina/estadística & datos numéricos , Adulto , Cuidados Posteriores/normas , Cuidados Posteriores/estadística & datos numéricos , Anciano , Vías Clínicas/normas , Vías Clínicas/estadística & datos numéricos , Femenino , Estudios de Seguimiento , VIH , Infecciones por VIH/diagnóstico , Infecciones por VIH/epidemiología , Infecciones por VIH/terapia , Humanos , Comunicación Interdisciplinaria , Masculino , Persona de Mediana Edad , Grupo de Atención al Paciente/organización & administración , Grupo de Atención al Paciente/normas , Grupo de Atención al Paciente/estadística & datos numéricos , Guías de Práctica Clínica como Asunto , Pautas de la Práctica en Medicina/normas , Estudios RetrospectivosRESUMEN
Tropheryma whipplei, the causative bacterium of Whipple's disease, can cause acute pneumonia. We performed a case-control study including patients with T. whipplei in bronchoalveolar lavages (BALs) and controls in order to compare patients' clinical statuses. We tested T. whipplei PCR from January 2013 to December 2014, in all the 1438 BALs in Marseille, France. Controls were hospitalized in the same unit during the same period and were comparable in age and sex. Eighty-eight BALs (6.1%) were positive for T. whipplei and 58 patients had pneumonia. Sixty-four patients were male with a mean age of 50.5 years. T. whipplei was commonly associated with aspiration pneumonia (18/88 patients compared with 6/88 controls, p 0.01) and was detected as a unique pathogen in nine cases. Overall, no difference was observed regarding immunocompromised status. Nevertheless, the six AIDS-infected patients in the T. whipplei group had a significantly lower CD4 level than the five AIDS-infected patients in the control group (49 vs. 320/mm3, p 0.01); in addition, five patients were treated with tumour necrosis factor alpha inhibitors (including three treated by monocolonal antibodies and two with soluble receptor) compared with none of the controls (p 0.03). Pneumocystis jirovecii was frequently associated with the T. whipplei group (7/88 vs. 0/88 in control group), Pseudomonas aeruginosa was only detected in the control group (8/88). This study adds evidence for a causative role of T. whipplei in pneumonia. In the future, an experimental model of pneumonia induced by T. whipplei will prove its role in pneumonia.
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Líquido del Lavado Bronquioalveolar/microbiología , ADN Bacteriano/análisis , Neumonía por Aspiración/microbiología , Tropheryma/genética , Enfermedad de Whipple/diagnóstico , Adolescente , Adulto , Anciano , Anciano de 80 o más Años , Estudios de Casos y Controles , Niño , Preescolar , Femenino , Francia , Hospitalización , Humanos , Lactante , Masculino , Persona de Mediana Edad , Adulto JovenRESUMEN
OBJECTIVES: The objective of this nested study was to assess the prevalence of psychiatric disorders in a sample of HIV/hepatitis C virus (HCV)-coinfected patients according to their HCV status. METHODS: The nested cross-sectional study, untitled HEPAVIH-Psy survey, was performed in a subset of HIV/HCV-coinfected patients enrolled in the French Agence Nationale de Recherche sur le SIDA et les Hépatites Virales (ANRS) CO13 HEPAVIH cohort. Psychiatric disorders were screened for using the Mini International Neuropsychiatric Interview (MINI 5.0.0). RESULTS: Among the 286 patients enrolled in the study, 68 (24%) had never received HCV treatment, 87 (30%) were treatment nonresponders, 44 (15%) were currently being treated and 87 (30%) had a sustained virological response (SVR). Of the 286 patients enrolled, 121 patients (42%) screened positive for a psychiatric disorder other than suicidality and alcohol/drug abuse/dependence, 40 (14%) screened positive for alcohol abuse/dependence, 50 (18%) screened positive for drug abuse/dependence, 50 (17.5%) were receiving an antidepressant treatment and 69 (24%) were receiving an anxiolytic. Patients with an SVR did not significantly differ from the other groups in terms of psychiatric disorders. Patients receiving HCV treatment screened positive less often for an anxiety disorder. The highest rate of drug dependence/abuse was among HCV treatment-naïve patients. CONCLUSIONS: Psychiatric disorders were frequent in HIV/HCV-coinfected patients and their rates were comparable between groups, even for patients achieving an SVR. Our results emphasize the need for continuous assessment and care of coinfected patients, even after HCV clearance. Drug addiction remains an obstacle to access to HCV treatment. Despite the recent advent and continued development of directly acting antiviral agents (DAAs), it is still crucial to offer screening and comprehensive care for psychiatric and addictive disorders.
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Coinfección/complicaciones , Infecciones por VIH/complicaciones , Hepatitis C Crónica/complicaciones , Trastornos Mentales/epidemiología , Trastornos Relacionados con Sustancias/epidemiología , Adolescente , Adulto , Anciano , Estudios Transversales , Femenino , Francia/epidemiología , Humanos , Masculino , Persona de Mediana Edad , Prevalencia , Adulto JovenAsunto(s)
Accesibilidad a los Servicios de Salud/tendencias , Tratamiento de Sustitución de Opiáceos/tendencias , Trastornos Relacionados con Opioides/terapia , Atención Primaria de Salud/tendencias , Actitud del Personal de Salud , Consumidores de Drogas/psicología , Francia/epidemiología , Conductas Relacionadas con la Salud , Conocimientos, Actitudes y Práctica en Salud , Humanos , Trastornos Relacionados con Opioides/epidemiología , Trastornos Relacionados con Opioides/psicología , Estigma Social , Estereotipo , Factores de TiempoRESUMEN
OBJECTIVES: Despite the fact that a considerable portion of hepatitis C virus (HCV) positive individuals are viraemic, the risk of transmitting HCV to others is context dependent. Prison is a particularly risky environment as HCV prevention tools are often unavailable. Using data from a cross-sectional study conducted in centres for HCV testing in southeastern France, we aimed to compare the patterns of risk factors in HCV-positive inmates with those in the general population. SETTING: 26 centres for HIV/HCV testing in southeastern France (23 in the general population and 3 in prison). PRIMARY OUTCOME MEASURE: HCV seropositivity measured with ELISA test. METHODS: A propensity score method to ensure that the general and inmate populations could be compared and a multimodel averaging to estimate the degree (strong, weak, none) of the association of a number of specific factors with HCV seropositivity in each group. RESULTS: Among the 52,082 participants, HCV infection prevalence was 1.5% and 5.2% in the general (n=46,125) and inmate (n=5957) populations, respectively. In both populations, 'drug injection without snorting' and 'drug injection with snorting' were very strongly associated with HCV seropositivity. Among inmates, 'drug snorting alone' (OR (95% CI) 2.21 (1.39 to 3.52) was also a strong correlate while tattoos, piercings (OR (95% CI) 1.22 (0.92 to 1.61)) and the sharing of toiletry items (OR (95% CI) 1.44 (0.84 to 2.47)) were weak correlates. CONCLUSIONS: The pattern of risk factors associated with HCV seropositivity is different between the general and prison populations, injection and snorting practices being more prevalent in the latter. Access to prevention measures in prisons is not only a public health issue but also a human right for inmates who deserve equity of care and prevention.
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Hepatitis C/epidemiología , Prisioneros/estadística & datos numéricos , Abuso de Sustancias por Vía Intravenosa/epidemiología , Adulto , Perforación del Cuerpo/estadística & datos numéricos , Estudios Transversales , Ensayo de Inmunoadsorción Enzimática , Femenino , Francia/epidemiología , Hepatitis C/prevención & control , Humanos , Masculino , Persona de Mediana Edad , Prevalencia , Factores de Riesgo , Estudios Seroepidemiológicos , Tatuaje/estadística & datos numéricos , Adulto JovenAsunto(s)
Actinomycetaceae/aislamiento & purificación , Infecciones por Actinomycetales/microbiología , Bacteriemia/microbiología , Infecciones Relacionadas con Catéteres/microbiología , Coinfección/microbiología , Úlcera de la Pierna/microbiología , Úlcera por Presión/microbiología , Infecciones de los Tejidos Blandos/microbiología , Actinomycetaceae/patogenicidad , Infecciones por Actinomycetales/complicaciones , Infecciones por Actinomycetales/tratamiento farmacológico , Anciano , Combinación Amoxicilina-Clavulanato de Potasio/uso terapéutico , Antibacterianos/uso terapéutico , Bacteriemia/tratamiento farmacológico , Infecciones por Bacteroides/complicaciones , Bacteroides fragilis/aislamiento & purificación , Infecciones Relacionadas con Catéteres/tratamiento farmacológico , Coinfección/tratamiento farmacológico , Femenino , Gardnerella vaginalis/aislamiento & purificación , Infecciones por Bacterias Grampositivas/complicaciones , Humanos , Infecciones por Klebsiella/complicaciones , Klebsiella oxytoca/aislamiento & purificación , Úlcera de la Pierna/complicaciones , Úlcera por Presión/complicaciones , Piel/microbiología , Especificidad de la Especie , Cateterismo Urinario/efectos adversos , Infecciones Urinarias/complicaciones , Infecciones Urinarias/tratamiento farmacológico , Infecciones Urinarias/microbiologíaRESUMEN
OBJECTIVES: We wanted: (i) to assess vaccine coverage (VC) for papillomavirus (HPV) (one and three doses of the vaccine, VC1 and VC3) and compliance with the recommended vaccination regimen (3rd dose within 1 year after the 1st dose) among 14-16 year-old girls; and (ii) to identify the factors independently associated with VC and compliance with the recommended vaccination regimen. METHODS: We conducted a descriptive longitudinal study, using the National Health Insurance reimbursement database, for years 2007 to 2009, in South-Eastern France. We performed a multivariate analysis (Cox proportional hazards model). RESULTS: VC1 was 35.5%, with 68.8% of those who started vaccination having completed the 3-dose regimen, 64.1% within one year. VC1 and VC3 were positively associated with the girl's age. Girls covered by the complementary social welfare healthcare program and those living in rural areas had lower VC1 and VC3. Being covered by the complementary social welfare healthcare program was also associated with lower compliance with the recommended vaccination regimen. VC1 and VC3 were positively associated with the number of medical consultations during the study period. Important geographical variations were noted regarding VC1. CONCLUSIONS: Our study confirms that VC for HPV is insufficient in our region, and that there are socio-economic and geographical inequalities. Even though the vaccine is reimbursed for all girls, efforts must be made to improve VC, particularly for girls covered by the complementary social welfare healthcare program and those living in rural areas.
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Vacunas contra Papillomavirus , Vacunación/estadística & datos numéricos , Adolescente , Factores de Edad , Femenino , Francia , Humanos , Esquemas de Inmunización , Inmunización Secundaria/economía , Inmunización Secundaria/estadística & datos numéricos , Reembolso de Seguro de Salud , Vacunas contra Papillomavirus/administración & dosificación , Vacunas contra Papillomavirus/clasificación , Vacunas contra Papillomavirus/economía , Cooperación del Paciente/estadística & datos numéricos , Guías de Práctica Clínica como Asunto , Derivación y Consulta/estadística & datos numéricos , Población Rural/estadística & datos numéricos , Bienestar Social , Factores Socioeconómicos , Población Urbana/estadística & datos numéricos , Vacunación/economíaRESUMEN
PURPOSE: To describe the antifungal stewardship programme in our hospital and to assess its impact on total antifungal prescriptions and their cost, and on the process of care measures regarding the diagnostic and therapeutic management of invasive aspergillosis and candidaemia. METHODS: We conducted a prospective observational study describing the multifaceted antifungal stewardship programme in place at our French teaching tertiary-care hospital since 2005. Several actions were implemented successively, including the systematic evaluation of all costly antifungal prescriptions (echinocandins, lipid formulations of amphotericin B, posaconazole and voriconazole). RESULTS: A total of 636 antifungal prescriptions were discussed by the antifungal management team from 2005 to 2010 inclusive, mainly from the haematology department (72 %). In 344/636 cases (54 %), a piece of advice was fed back to the physician in charge of the patient, with an 88 % compliance rate. Optimal standard of care was achieved for galactomannan antigen testing, performance of chest computed tomography (CT) scan and voriconazole therapeutic drug monitoring for invasive aspergillosis, with no combination therapies used since 2008. Regarding candidaemia, optimal standard of care was achieved for the timing of antifungal therapy, recommended first-line therapy, duration of therapy and the removal of central venous catheters. Total antifungal prescriptions (in defined daily doses, DDD) and their cost were contained between 2003 and 2010. CONCLUSIONS: The implementation of an antifungal stewardship programme was feasible, sustainable and well accepted. We observed an improved quality of care for some process of care measures, and antifungal use and cost were contained in our hospital.
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Antifúngicos/uso terapéutico , Candidemia/tratamiento farmacológico , Prescripciones de Medicamentos/normas , Aspergilosis Pulmonar Invasiva/tratamiento farmacológico , Adolescente , Adulto , Antifúngicos/economía , Niño , Preescolar , Prescripciones de Medicamentos/estadística & datos numéricos , Utilización de Medicamentos/estadística & datos numéricos , Francia , Costos de la Atención en Salud/estadística & datos numéricos , Hospitales de Enseñanza , Humanos , Estudios ProspectivosRESUMEN
The purpose of this investigation was to adapt to an individual physician level and to the paediatric context a set of drug-specific indicators of outpatient antibiotic use developed by the European Surveillance of Antimicrobial Consumption (ESAC) project, and to describe the differences in antibiotic prescriptions between general practitioners (GPs) and paediatricians. We conducted a retrospective cross-sectional study analysing antibiotic prescriptions in 2009 for children below 16 years of age in south-eastern France, using the National Health Insurance (NHI) outpatient reimbursement database. A generalised linear model adjusted on physicians' characteristics and patient population characteristics was used to compare indicators between GPs and paediatricians. We included 4,921 self-employed GPs and 301 paediatricians. Penicillins accounted for 47% and 45% of all antibiotics prescribed by GPs and paediatricians, respectively, followed by cephalosporins (33% and 39%) and macrolides (14% and 9%). In both specialties, there were around 70% more antibiotic prescriptions during the winter quarters compared to the summer quarters. The 13 indicators we calculated showed wide variations in antibiotic prescriptions among GPs, among paediatricians, and between GPs and paediatricians. In an adjusted econometric model, GPs were found to issue 54% more antibiotic prescriptions than paediatricians, whereas paediatricians used a significantly higher proportion of co-amoxiclav (18% vs. 12%) and cephalosporins (39% vs. 33%) and a significantly lower proportion of macrolides (9% vs. 14%) compared to GPs. A set of 13 indicators may be calculated using reimbursement data to describe outpatient antibiotic use at the physician level. We observed very different prescribing profiles between GPs and paediatricians.
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Antibacterianos/uso terapéutico , Prescripciones de Medicamentos/estadística & datos numéricos , Médicos Generales , Especialización , Adolescente , Niño , Preescolar , Estudios Transversales , Femenino , Francia , Humanos , Lactante , Recién Nacido , Masculino , Estudios RetrospectivosRESUMEN
Our objectives for this investigation were: (i) to design quality measures of outpatient antibiotic use that could be calculated at the individual general practitioner (GP) level using reimbursement data only; and (ii) to analyse the variability in antibiotic prescriptions between GPs regarding these measures in south-eastern France. Based on the literature and international therapeutic guidelines, we designed a set of quality measures in an exploratory attempt to assess the quality of antibiotic prescriptions. We performed a cross-sectional study of antibiotic prescriptions in adults in south-eastern France in 2009, using data from the outpatient reimbursement database of the French National Health Insurance (NHI). We carried out a cluster analysis to group GPs according to their antibiotic prescribing behaviour. Six quality measures were calculated at the GP level, with wide variations in practice regarding all these measures. A six-cluster solution was identified, with one cluster grouping 56 % of the sample and made up of GPs having the most homogeneous pattern of prescription for all six quality measures, probably reflecting better antibiotic prescribing. Total pharmaceutical expenses (per patient), penicillin combinations use, quinolone use and seasonal variation of quinolone use were all positively associated with a more heterogeneous and possibly less appropriate use of antibiotics in a multivariate analysis. These quality measures could be useful to assess GPs' antibiotic prescribing behaviour in countries where no information system provides easy access to data linking drug use to a clinical condition.
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Antibacterianos/uso terapéutico , Prescripciones de Medicamentos/normas , Atención Primaria de Salud/métodos , Adolescente , Adulto , Anciano , Anciano de 80 o más Años , Estudios Transversales , Prescripciones de Medicamentos/estadística & datos numéricos , Femenino , Francia , Adhesión a Directriz/estadística & datos numéricos , Humanos , Masculino , Persona de Mediana Edad , Reembolso de Incentivo/estadística & datos numéricos , Adulto JovenRESUMEN
Adenomyosis is a common benign uterine pathology that is defined by the presence of islands of ectopic endometrial tissue within the myometrium. It is asymptomatic in one third of cases, but when there are clinical signs they remain non-specific. It can often be misdiagnosed on sonography as it may be taken to be multiple uterine leiomyomata or endometrial thickening, both of which have a different prognosis and treatment. Adenomyosis is often associated with hormone-dependent pelvic lesions (myoma, endometriosis, or endometrial hyperplasia). It is less commonly connected to infertility or obstetrical complications and indeed any direct relationship remains controversial. The purpose of imaging is to make the diagnosis, to determine the extent of spread (focal or diffuse, superficial or deep adenomyosis, adenomyoma), and to check whether there is any associated disease, in particular endometriosis. The aim of this article is to provide assistance in recognising adenomyosis on imaging and to identify the pathologies that are commonly associated with it in order to guide the therapeutic management of symptomatic patients. Pelvic ultrasonography is the first line investigation. Sonohysterography can assist with diagnosis in some cases (pseudothickening of the endometrium seen on sonography). MRI may be used in addition to sonography to back up the diagnosis and to look for any associated disease.
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Adenomiosis/diagnóstico , Adenomiosis/diagnóstico por imagen , Adenomiosis/terapia , Femenino , Humanos , Imagen por Resonancia Magnética , UltrasonografíaRESUMEN
Although stingray injuries have always been frequent in the Republic of Djibouti, it was not until July 2008 that the Bouffard Hospital developed a standardised management protocol. The purpose of this report is to describe that protocol and evaluate its impact on the outcome of stingray injuries based on a prospective study for the period between July 2008 and July 2009. During the study period, 12 stingray stings were treated. The treatment protocol that is based on a multidisciplinary approach involving the intensivist, anaesthesiologist, and surgeon achieved wound healing within one month. This outcome contrasts with previous publications that have generally described longer healing times with frequent infectious complications.
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Mordeduras y Picaduras/terapia , Venenos de los Peces/efectos adversos , Peces Venenosos , Calor/uso terapéutico , Rajidae , Heridas Penetrantes/terapia , Adolescente , Adulto , Animales , Mordeduras y Picaduras/epidemiología , Niño , Protocolos Clínicos , Djibouti , Femenino , Humanos , Inmersión , Masculino , Persona de Mediana Edad , Océanos y Mares , Estudios Prospectivos , Factores de Tiempo , Resultado del Tratamiento , Agua , Heridas Penetrantes/epidemiologíaRESUMEN
We report a 22-year-old man who presented in January 2009 in Djibouti for an aortic-abscessed endocarditis due to Gemella morbillorum (G. morbillorum). A voluminous aortic abscess that extended to the perimembranous ventricular septum was fistulized into the right atrium. Atrioventricular conduction abnormalities were observed. The portal of entry was dental with multiples caries and a periodontitis attributed to khat chewing. The patient died within few days. Diagnosis, severity and management of endocarditis due to this rare bacterium are discussed.
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Catha , Endocarditis Bacteriana/microbiología , Infecciones por Bacterias Grampositivas , Staphylococcaceae , Catha/efectos adversos , Djibouti , Endocarditis Bacteriana/diagnóstico , Resultado Fatal , Infecciones por Bacterias Grampositivas/diagnóstico , Humanos , Masculino , Adulto JovenRESUMEN
The 3D balanced gradient-echo technique is described along with th eimaging protocol for MR imaging of th ecoronary arteries. A 3D volume with spatial resolution of 0.6 x 0.6 x 0.75 mm composed of 140 slices covering the whole heart is acquired over 10 minutes. The main advantage of this whole heart technique is the possibility to image the coronary arteries along their entire course in a single acquisition. Selection of the navigator positions, timing of image acquisition and its duration through the R-R interval are the main factors requiring optimization.
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Aumento de la Imagen/métodos , Procesamiento de Imagen Asistido por Computador/métodos , Imagenología Tridimensional/métodos , Angiografía por Resonancia Magnética/métodos , Humanos , Sensibilidad y EspecificidadRESUMEN
MRA includes all techniques used to depict vessels with MR. Gadolinium contrast injection combined with gradient echo sequences is the technique of choice for vascular imaging. Technical advances now allow faster acquisitions. The purpose of this article is to present two main advances with MRA: whole-body MRA and dynamic 3D MRA. Technical considerations, acquisition techniques, advantages and pitfalls based on our experience with a 1.5T MR unit will be discussed in order to promote their use in routine clinical practice.
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Gadolinio , Angiografía por Resonancia Magnética/métodos , Angiografía por Resonancia Magnética/tendencias , Anciano , Humanos , Imagenología Tridimensional , Masculino , Persona de Mediana EdadRESUMEN
PURPOSE: To determine the value of an angioplasty simulation to differentiate the users based on their level of experience. To determine the perceived usefulness of an angioplasty simulation program. MATERIALS AND METHODS: Forty-six radiologists performed a renal angioplasty on a VIST simulator (Mentice Corporation, Gothenburg, Sweden); the procedure was completed by 41 radiologists. The radiologists were divided into two groups based on the level of experience. Quantitative variables analyzed included procedure duration time and fluoroscopy time. The radiologists then completed a questionnaire evaluating the simulation program. RESULTS: Radiologists with more than 2 years of clinical experience (n=14) performed the procedures faster (20.4 min vs 27.4 min, p<0.01) using less fluoroscopy time (7.8 min vs 11.2 min, p<0.05) than others. Radiologists performing more than 2 procedures per month (n=14) performed the procedures faster (19.4 min vs 27.9 min, p<0.01) using less fluoroscopy time (7.4 min vs 11.3 min, p<0.05) than other (n=27). The participating radiologists indicated that the simulation was realistic. CONCLUSION: Procedure duration time and duration of fluoroscopy were criteria able to differentiate the users based on their level of experience. The educational value of the simulation program was perceived as helpful by the users.
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Angiografía , Angioplastia , Simulación por Computador , Radiología Intervencionista , Interfaz Usuario-Computador , Distribución de Chi-Cuadrado , Interpretación Estadística de Datos , Humanos , Aprendizaje , Radiología Intervencionista/educación , Obstrucción de la Arteria Renal/diagnóstico por imagen , Obstrucción de la Arteria Renal/terapia , Encuestas y CuestionariosRESUMEN
BACKGROUND: The aim of our study was to evaluate and compare short- and long-term outcomes of percutaneous angioplasty and open revascularization for chronic intestinal ischemia. MATERIALS AND METHODS: Twenty-nine consecutive patients undergoing percutaneous angioplasty (n = 14) or open revascularization (n = 15) for chronic intestinal ischemia were prospectively studied from 2000 to 2006. All patients were symptomatic with at least thrombosis or 80% stenosis of superior mesenteric artery. RESULTS: No patient was lost to follow-up. Patients were older in percutaneous angioplasty than in the open revascularization group (p = 0.0009). Open revascularization allowed to revascularize more vessels (1.4 versus 1, p = 0.01). There was no difference between groups regarding major complications, mortality, hospital length of stay, and symptomatic recurrence. Primary re-stenosis was only observed in three patients (21.4%) in the percutaneous angioplasty group. Survival at 2 years estimated by the Kaplan-Meier method was 58% in the percutaneous angioplasty group and 70% in the open revascularization group (p = NS). CONCLUSION: Percutaneous angioplasty should be preferentially offered to older patients and those unable to undergo open revascularization.