Your browser doesn't support javascript.
loading
Mostrar: 20 | 50 | 100
Resultados 1 - 20 de 155
Filtrar
1.
Eur J Clin Microbiol Infect Dis ; 43(6): 1193-1203, 2024 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-38536524

RESUMEN

To assess clinical impact and perform cost-consequence analysis of the broadest multiplex PCR panels available for the rapid diagnosis of bloodstream infections (BSI). Single-center, randomized controlled trial conducted from June 2019 to February 2021 at a French University hospital with an institutional antimicrobial stewardship program. Primary endpoint was the percentage of patients with optimized antimicrobial treatment 12 h after transmission of positivity and Gram stain results from the first positive BC. This percentage was significantly higher in the multiplex PCR (mPCR) group (90/105 = 85.7% %, CI95% [77.5 ; 91.8] vs. 68/107 = 63.6%, CI95% [53.7 ; 72.6]; p < 10- 3) at interim analysis, resulting in the early termination of the study after the inclusion of 309 patients. For patients not optimized at baseline, the median time to obtain an optimized therapy was much shorter in the mPCR group than in the control group (6.9 h, IQR [2.9; 17.8] vs. 26.4 h, IQR [3.4; 47.5]; p = 0.001). Early optimization of antibiotic therapy resulted in a non-statistically significant decrease in mortality from 12.4 to 8.8% (p = 0.306), with a trend towards a shorter median length of stay (18 vs. 20 days; p = 0.064) and a non-significant reduction in the average cost per patient of €3,065 (p = 0.15). mPCR identified all the bacteria present in 88% of the samples. Despite its higher laboratory cost, the use of multiplex PCR for BSI diagnosis leads to early-optimised therapy, seems cost-effective and could reduce mortality and length of stay. Their impact could probably be improved if implemented 24/7.


Asunto(s)
Bacteriemia , Cultivo de Sangre , Reacción en Cadena de la Polimerasa Multiplex , Humanos , Masculino , Femenino , Reacción en Cadena de la Polimerasa Multiplex/métodos , Reacción en Cadena de la Polimerasa Multiplex/economía , Cultivo de Sangre/métodos , Persona de Mediana Edad , Anciano , Bacteriemia/diagnóstico , Bacteriemia/microbiología , Bacteriemia/tratamiento farmacológico , Análisis Costo-Beneficio , Francia , Antibacterianos/uso terapéutico , Programas de Optimización del Uso de los Antimicrobianos , Sepsis/diagnóstico , Sepsis/microbiología , Sepsis/tratamiento farmacológico , Anciano de 80 o más Años , Técnicas de Diagnóstico Molecular/economía , Técnicas de Diagnóstico Molecular/métodos , Bacterias/aislamiento & purificación , Bacterias/genética , Bacterias/clasificación
2.
Arch Pediatr ; 29(7): 526-529, 2022 Oct.
Artículo en Inglés | MEDLINE | ID: mdl-36055867

RESUMEN

The objective of this study was to evaluate the adherence to the French Health Authority's 2017 guidelines concerning early-onset sepsis (EOS) in neonates. This 6-month prospective observational study was conducted in 2020 in a tertiary hospital maternity unit. Neonates were classified according to their risk of EOS and the level of appropriate surveillance was analyzed. The risk of EOS was determined for 69.9% of the 1024 included neonates. Of the 123 neonates with a moderate or high risk of EOS, the optimal clinical surveillance was 88%. Even in a tertiary hospital, with training of caregivers, adherence to guidelines was incomplete. Some corrective measures are suggested and should be applied to enhance the adherence.


Asunto(s)
Sepsis Neonatal , Sepsis , Antibacterianos/uso terapéutico , Femenino , Humanos , Recién Nacido , Sepsis Neonatal/diagnóstico , Sepsis Neonatal/tratamiento farmacológico , Sepsis Neonatal/epidemiología , Embarazo , Estudios Prospectivos , Sepsis/tratamiento farmacológico , Sepsis/terapia , Centros de Atención Terciaria
4.
J Clin Pharm Ther ; 43(2): 240-248, 2018 Apr.
Artículo en Inglés | MEDLINE | ID: mdl-29143347

RESUMEN

WHAT IS KNOWN AND OBJECTIVE: The French Society of Clinical Pharmacy (SFPC) asked a group of experts to adapt the SFPC hospital pharmacists' interventions reporting tool for use in community pharmacy practice. This study aimed to develop and validate a tool for the routine reporting of pharmacists' interventions in French community settings. METHODS: Two groups of community pharmacists coded reports of 60 typical pharmacists' interventions. One group was "experts" (n = 4) who had participated in the development of the tool (internal validation) and the other were "external" community pharmacists (n = 6), naïve to the tool (external validation). The Kappa coefficient was used to assess the inter-reliability of classification between participants. A 4-level Likert scale was used to evaluate ease of use and acceptability. RESULTS AND DISCUSSION: The tool we developed for recording and classifying PIs has 19 items; 11 non-ordered categories describing drug-related problems; and 7 items describing interventions. Two tables of definitions were provided to help community pharmacists in the classification. The mean κ statistic was (i) 0.63 for experts and 0.73 for external community pharmacists in categorizing drug-related problems and (ii) 0.69 for experts and 0.75 for external community pharmacists in categorizing interventions. WHAT IS NEW AND CONCLUSION: A specific tool for the documentation of pharmacists' interventions in community pharmacies is now available in French. Besides being useful to describe pharmacists' interventions in studies in community settings, it can be used to document the pharmaceutical patient record and to support the traceability process.


Asunto(s)
Servicios Comunitarios de Farmacia/normas , Errores de Medicación/prevención & control , Farmacéuticos/normas , Prescripciones de Medicamentos , Humanos , Farmacias/normas , Servicio de Farmacia en Hospital , Rol Profesional , Reproducibilidad de los Resultados
5.
J Med Vasc ; 42(4): 229-233, 2017 Jul.
Artículo en Francés | MEDLINE | ID: mdl-28705341

RESUMEN

OBJECTIVES: The aim of this study was to evaluate the contribution of ultrasound guidance (UG) to vascular puncture in endovascular therapy. Ultrasound guidance was evaluated by comparison with the rates of failures and complications of the traditional techniques of percutaneous vascular access. MATERIALS AND METHODS: We reviewed all the consecutive percutaneous revascularizations (percutaneous transluminal angioplasty and/or stenting, treatment of aneurysms and vascular traumatisms) since the standardization of the systems of closing (extra- and endovascular). The UG began in November 2011. The main objectives of the evaluation were the rate of failure of the punctures and the rate of complications (hematoma requiring transfusion or surgery for hemostasis, false aneurysm, dissection, thrombosis, infection). The failures and the complications were compared between two groups UG- and UG+. RESULTS: Between January 2008 and December 2014, 841 punctures were carried out by femoral route (85%), brachial route (12%), popliteal route (1%), axillary route (0.5%), and posterior tibial route (0.5%) with introducers between 4F and 12F. There were 20 complications (2.3%): six hematomas, four pseudo-aneurysms, three thromboses, one nervous paralysis, one stent infection, and seven percutaneous failures. The complications and the failures were significantly lower with ultrasound guidance (0.9% vs. 3.6%; P=0.02, and 0.2% vs. 1.4%; P=0.01, respectively). CONCLUSION: Ultrasound guidance makes it possible to significantly decrease the rate of complications and failures of the percutaneous accesses. This tool allowed a clear increase in the realization of the percutaneous angioplasties in outpatient hospitalization.


Asunto(s)
Angioplastia , Enfermedad Arterial Periférica/diagnóstico por imagen , Enfermedad Arterial Periférica/cirugía , Cirugía Asistida por Computador , Ultrasonografía Intervencional , Adulto , Anciano , Anciano de 80 o más Años , Femenino , Humanos , Masculino , Persona de Mediana Edad , Punciones , Estudios Retrospectivos
6.
Rev Mal Respir ; 33(5): 343-9, 2016 May.
Artículo en Francés | MEDLINE | ID: mdl-26520776

RESUMEN

INTRODUCTION: The objectives of outpatient surgery are to reduce the risks related to the hospitalization, to improve the postoperative recovery and to optimize contact with family physicians. The objective of this work is to present the first unit of outpatient pulmonary surgery and to report the results of the resections of pulmonary nodules in outpatient surgery in the setting of early discharge. METHODS: The indications for the resection of nodules were discussed in a multidisciplinary thoracic oncology meeting. The patients underwent resection of one or more lung nodules by thoracoscopy after verification that they met the anaesthetic and surgical criteria for ambulatory surgery. We analyzed the characteristics of the population, the duration of surgery, the type of resection, the time of the chest drain removal and the postoperative follow-up. RESULTS: Between November 2013 and December 2014, 51 patients underwent sub-lobar pulmonary resections. Among them 7 patients (4 men and 3 women), with an average age of 57.6 years (39-64) and histories of malignant tumor, underwent 7 atypical resections and two segmentectomies in outpatient surgery (3 patients had two resections). The average operating time was 53.75min (30-90). The chest drain was removed before the third hour in 8 cases and on the third day in one case. The average tumor diameter was 10.375mm (6-23). The histology revealed a metastasis of colorectal carcinoma in 4 cases, a metastasis of a renal carcinoma in 1 case, an in situ adenocarcinoma in 1 case and a benign tumor in 3 cases. Neither recurrence nor complication was observed during an average follow-up of 6 months. CONCLUSION: Thanks to a protocol of early mobilisation and discharge included in a well established clinical care pathway, thoracoscopic resection of lung nodules is feasible, with safety in properly selected and prepared patients in outpatient surgery.


Asunto(s)
Atención Ambulatoria/métodos , Vías Clínicas , Nódulos Pulmonares Múltiples/cirugía , Neumonectomía/rehabilitación , Cirugía Torácica Asistida por Video/rehabilitación , Adulto , Vías Clínicas/organización & administración , Vías Clínicas/normas , Femenino , Humanos , Masculino , Persona de Mediana Edad , Nódulos Pulmonares Múltiples/rehabilitación , Tempo Operativo , Alta del Paciente , Neumonectomía/métodos , Estudios Retrospectivos , Toracoscopía/métodos , Toracoscopía/rehabilitación , Factores de Tiempo
7.
Ann Pharm Fr ; 72(5): 375-87, 2014 Sep.
Artículo en Inglés | MEDLINE | ID: mdl-25220233

RESUMEN

BACKGROUND: The objective of this study was to gain detailed insight concerning liver transplanted patients' representations about transplantation, graft rejection and immunosuppressive drugs to adapt the educational follow-up. PATIENTS AND METHODS: Semi-structured interviews were conducted with 8 patients. Each interview was recorded and fully transcribed. The verbatim was first coded according to the themes of the Common Sense Model and an inductive approach for the remaining text. RESULTS: Transplantation is perceived both as a recovery and a new chronic condition. Participants feel powerless in the face of the risk of graft rejection. This risk is perceived as out of control as it is not associated with specific symptoms and external causes. The individual knowledge gained about transplantation relies on real-life experience shared between patients. Many participants feel anxiety. It responds to stress caused by immunosuppressant medication intake, routine check-ups, potential side effects and chronicity of immunodepression. Messages stressing the importance of the tacrolimus in the medication therapy are strengthened by a pre-discharge pharmaceutical consultation. DISCUSSION AND CONCLUSIONS: This study suggests that healthcare providers should systematically seek to determine illness representations to optimize the educational follow-up. The patient education program for liver transplanted patients should include three types of intervention: individualized education, behavioral intervention and psychological support. It should provide a support for stress management and acceptance of the new chronic condition. The involvement of a clinical pharmacist is relevant.


Asunto(s)
Hepatopatías/psicología , Hepatopatías/cirugía , Trasplante de Hígado/psicología , Adulto , Anciano , Femenino , Rechazo de Injerto , Conocimientos, Actitudes y Práctica en Salud , Humanos , Inmunosupresores/efectos adversos , Inmunosupresores/uso terapéutico , Masculino , Persona de Mediana Edad , Educación del Paciente como Asunto , Encuestas y Cuestionarios
8.
Vet Comp Orthop Traumatol ; 25(6): 498-505, 2012.
Artículo en Inglés | MEDLINE | ID: mdl-22828947

RESUMEN

OBJECTIVE: The purpose of this study was to describe computed tomography (CT) features of the ununited anconeal process and relate them with the following elbow dysplasia signs: medial coronoid disease, medial humeral condyle changes, osteoarthritis (OA), and radioulnar incongruence. METHODS: Computed tomographic images of dogs older than six months with an ununited anconeal process were evaluated (n = 13). Ununited anconeal process features were described as being complete or incomplete, and the degree of displacement, volume, and presence of cysts and sclerosis were also evaluated. Medial coronoid disease was defined as an irregular medial coronoid process shape, presence of sclerosis and fragmentation. Medial humeral condyle changes were defined as subchondral bone flattening, lucencies, and sclerosis. Osteoarthritis was graded depending on the osteophytes size. Radioulnar incongruence was measured on a sagittal view at the base of the medial coronoid process. RESULTS: Eleven elbows had a complete and two had an incomplete ununited anconeal process. All ununited anconeal processes had cystic and sclerotic lesions. Seven ununited anconeal processes were displaced and six were non-displaced. Mean ununited anconeal process volume was 1.35 cm3 (0.61 cm³ - 2.08 cm³). Twelve elbows had signs of medial coronoid disease (4 of them with a fragmented medial coronoid process), and one elbow did not show any evidence of medial coronoid disease. Ten elbows had medial humeral condyle changes. One elbow had grade 1 OA, seven elbows had grade 2, and five elbows grade 3. All elbows had radioulnar incongruence: three elbows had a negative and 10 elbows had a positive radioulnar incongruence. Mean radioulnar incongruence was 1.49 mm (0.63 mm - 2.61 mm). Computed tomographic findings were similar in the majority of the elbows studied: complete ununited anconeal processes with signs of medial coronoid disease, positive radioulnar incongruence, high grade of OA, sclerotic medial humeral condyle changes, and large ununited anconeal process volumes. CLINICAL SIGNIFICANCE: Incomplete small ununited anconeal process volumes could be associated with a lower incidence of medial coronoid disease or medial humeral condyle changes. We recommend performing preoperative CT of elbows with an ununited anconeal process to evaluate concurrent lesions.


Asunto(s)
Enfermedades de los Perros/diagnóstico por imagen , Miembro Anterior/patología , Artropatías/veterinaria , Articulaciones/patología , Tomografía Computarizada por Rayos X/veterinaria , Animales , Desarrollo Óseo , Perros , Femenino , Artropatías/diagnóstico por imagen , Artropatías/patología , Masculino , Estudios Retrospectivos , Tomografía Computarizada por Rayos X/métodos
9.
Vet Comp Orthop Traumatol ; 23(3): 209-13, 2010.
Artículo en Inglés | MEDLINE | ID: mdl-20485861

RESUMEN

This case report describes a cervical fusion cage, surgical technique and the long-term outcome of caudal cervical arthrodesis used to stabilise dynamic spinal cord compression at the sixth and seventh cervical intervertebral disc space (C6, C7) in a dog. A seven-year-old, 41 kg, entire male Dobermann Pinscher was admitted for progressive ataxia of two weeks duration. Neurological examination revealed ambulatory tetraparesis. Computed tomographic myelogram scans in neutral and traction positions of the neck were performed and were used to determine presence of a dynamic component. A C6-C7 surgical distraction and stabilisation using a distractable intervertebral fusion cage was performed. There was not any deterioration of neurological status was observed on postoperative neurological evaluation. Within eight weeks after surgery, gait and postural abilities had returned to normal. Computed tomography evaluation indicated a complete bridging callus within and outside the cage at 15 weeks after surgery. There were not any complications or recurrences of initial neurological deficits observed during the 40 month follow-up period. Based on the follow-up period data, a C6-C7 dynamic spinal cord compression with disc protrusion was successfully treated by a distractable cervical fusion cage.


Asunto(s)
Vértebras Cervicales/cirugía , Enfermedades de los Perros/cirugía , Prótesis e Implantes , Fusión Vertebral/veterinaria , Espondilosis/veterinaria , Animales , Perros , Masculino , Compresión de la Médula Espinal/cirugía , Compresión de la Médula Espinal/veterinaria , Fusión Vertebral/instrumentación , Fusión Vertebral/métodos , Espondilosis/cirugía
10.
Vet Comp Orthop Traumatol ; 22(3): 238-42, 2009.
Artículo en Inglés | MEDLINE | ID: mdl-19448867

RESUMEN

Fibrosis of the iliopsoas muscle can result in pelvic limb lameness in dogs. In this case report we describe fibrosis after an initial injury of the iliopsoas muscle in a dog. A seven-year-old hunting dog developed an acute onset of lameness and pain of the left pelvic limb after an intense period of exercise. Two months later, the dog was referred for evaluation of a non-weight-bearing left pelvic limb lameness. Orthopaedic examination revealed pain on hyperextension and internal rotation of the left coxofemoral joint. Neurological examination revealed a decreased patellar reflex in the left pelvic limb. Computed tomographic images showed non-uniform, contrast enhancement of the left iliopsoas muscle. The animal was treated with an iliopsoas tenomyectomy. Histopathological examination of the affected iliopsoas muscle revealed endomysial and perimysial mature fibrous replacement tissue. Sixteen weeks after surgery, the dog had returned to pre-injury levels of exercise.


Asunto(s)
Enfermedades de los Perros/diagnóstico por imagen , Enfermedades de los Perros/cirugía , Displasia Pélvica Canina/diagnóstico por imagen , Animales , Perros , Femenino , Miembro Posterior/diagnóstico por imagen , Miembro Posterior/cirugía , Displasia Pélvica Canina/cirugía , Articulación de la Cadera/diagnóstico por imagen , Articulación de la Cadera/cirugía , Cojera Animal/diagnóstico por imagen , Cojera Animal/cirugía , Músculo Esquelético/diagnóstico por imagen , Músculo Esquelético/patología , Músculo Esquelético/cirugía , Tomografía Computarizada por Rayos X/veterinaria , Resultado del Tratamiento
11.
Vet Comp Orthop Traumatol ; 21(1): 64-8, 2008.
Artículo en Inglés | MEDLINE | ID: mdl-18288346

RESUMEN

rhBMP-2 solution on a collagen sponge was placed along the diaphysis of an atrophicradius, which had a history of recurring fractures. Two months after rhBMP-2 treatment, new mineralized bone was present, which significantly increased the diameter of the radius and allowed the removal of the external skeletal fixator (ESF). Due to carpo-metacarpal joint compromise, a pancarpal arthrodesis was performed seven months later. At follow-up evaluation two years later the dog was only very mildly lame.


Asunto(s)
Proteínas Morfogenéticas Óseas/uso terapéutico , Perros/lesiones , Curación de Fractura/efectos de los fármacos , Fracturas del Radio/veterinaria , Proteínas Recombinantes/uso terapéutico , Factor de Crecimiento Transformador beta/uso terapéutico , Fracturas del Cúbito/veterinaria , Implantes Absorbibles/veterinaria , Animales , Proteína Morfogenética Ósea 2 , Perros/cirugía , Implantes de Medicamentos/uso terapéutico , Femenino , Curación de Fractura/fisiología , Fracturas del Radio/tratamiento farmacológico , Fracturas del Radio/cirugía , Resultado del Tratamiento , Fracturas del Cúbito/tratamiento farmacológico , Fracturas del Cúbito/cirugía , Soporte de Peso
12.
Arch Mal Coeur Vaiss ; 96(2): 75-8, 2003 Feb.
Artículo en Francés | MEDLINE | ID: mdl-14626728

RESUMEN

The authors report 4 cases of acute coronary syndromes with increased troponine levels during junctional tachycardia in patients with angiographically normal coronary arteries. ST segment changes during junctional tachycardia have no predictive value for the detection of coronary artery disease. Increased troponine, a marker of myocardial cellular necrosis, is not a sign of coronary lesions. A disequilibrium between the increased metabolic and energetic requirements of the myocardium and decreased perfusion due to the tachycardia could explain this observation. The recommended management of these patients is not to perform coronary angiography initially in the absence of cerebrovascular risk factors, but rather to document myocardial ischaemia by a non-invasive method such as echocardiography or scintigraphy.


Asunto(s)
Isquemia Miocárdica/sangre , Taquicardia Ectópica de Unión/sangre , Troponina/sangre , Adulto , Femenino , Humanos , Masculino , Persona de Mediana Edad , Isquemia Miocárdica/complicaciones , Taquicardia Ectópica de Unión/complicaciones
13.
Arch Mal Coeur Vaiss ; 96(2): 131-4, 2003 Feb.
Artículo en Francés | MEDLINE | ID: mdl-14626736

RESUMEN

Behçet's disease is associated with cardiac complications which may affect all three cardiac layers in 1 to 6% of cases. Although pericardial and coronary disease are the most common, the myocardium may also be affected. The clinical presentation may be left ventricular dysfunction with signs of dilated cardiomyopathy. The cause of the left ventricular dysfunction is usually coronary artery disease but it can also be inflammatory, resulting in a myocarditis with normal coronary arteries. The authors report two cases of Behçet's disease with symptomatic left ventricular dysfunction presenting as dilated cardiomyopathy with normal coronary arteries in one of the cases. Recent echocardiographic studies suggest that the incidence of myocardial disease is underestimated in this pathology: 20 to 35% of patients with Behçet's disease but no cardiac symptoms had left ventricular diastolic dysfunction. A more attentive investigation of left ventricular diastolic function in these patients should enable earlier diagnosis of this complication.


Asunto(s)
Síndrome de Behçet/complicaciones , Cardiomiopatía Dilatada/complicaciones , Disfunción Ventricular Izquierda/etiología , Adulto , Femenino , Humanos , Masculino , Persona de Mediana Edad
14.
Arch Mal Coeur Vaiss ; 95(10): 919-23, 2002 Oct.
Artículo en Francés | MEDLINE | ID: mdl-12462902

RESUMEN

The authors report three observations of acute pneumococcal endocarditis located in the aorta in one case, and mitral in the two other cases, admitted over a period of 4 years. Two of the three patients required surgical correction, with no surgical complications. Follow-up revealed a rare complication of infectious endocarditis linked to rupture of the head of the two anterior mitral pillars associated with an abscess. The severity of pneumococcal endocarditis is emphasised, concurring with the data from the literature. The role of echocardiography in pneumococcal septicaemia is clear; transthoracic examination is justified in every case of septicaemia, and transoesophageal echography complements this examination in case of diagnostic doubt or cardiovascular complication.


Asunto(s)
Aorta/microbiología , Endocarditis Bacteriana/patología , Válvula Mitral/microbiología , Infecciones Neumocócicas/patología , Adulto , Anciano , Aorta/patología , Diagnóstico Diferencial , Ecocardiografía , Endocarditis Bacteriana/diagnóstico , Endocarditis Bacteriana/terapia , Humanos , Masculino , Válvula Mitral/patología , Infecciones Neumocócicas/diagnóstico , Infecciones Neumocócicas/terapia , Sepsis/diagnóstico , Sepsis/etiología
15.
Prenat Diagn ; 22(6): 456-8, 2002 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-12116302

RESUMEN

Prenatal diagnosis of citrullinemia is performed using a direct argininosuccinate synthetase (ASS) assay on chorionic villi (CV) and citrulline concentration measurement in early amniotic fluid (AF). Here we report the results of 40 prenatal diagnoses performed using this method, discuss the difficulties encountered in interpreting the results, and propose the use of the citrulline/ornithine+arginine ratio (which is more discriminatory than citrulline concentration alone) when performing prenatal diagnosis of citrullinemia.


Asunto(s)
Amniocentesis , Líquido Amniótico/química , Arginina/análisis , Citrulina/análisis , Citrulinemia/diagnóstico , Ornitina/análisis , Argininosuccinato Sintasa/análisis , Argininosuccinato Sintasa/deficiencia , Muestra de la Vellosidad Coriónica , Femenino , Humanos , Embarazo , Sensibilidad y Especificidad
16.
Arch Mal Coeur Vaiss ; 94(1): 16-22, 2001 Jan.
Artículo en Francés | MEDLINE | ID: mdl-11233476

RESUMEN

Although it has been demonstrated recently that in patients with atrial fibrillation, protrusive atheromatous plaques of the thoracic aorta (thickness 4 mm) and left atrial abnormalities such as thrombosis, spontaneous contrast and low atrial blood flow velocities carry an additional embolic risk, this has not yet been studied in atrial flutter. Out of 2493 patients undergoing transoesophageal echocardiography between September 1993 and December 1997, 271 consecutive patients in atrial flutter (N = 41) or fibrillation (N = 230) for over 48 hours, underwent transoesophageal echocardiography before cardioversion. Patients with atrial flutter were compared with those with atrial fibrillation. Their characteristics were comparable with respect to age (68 +/- 13 and 67 +/- 12 years respectively, p = 0.628), sex ratio (men 66 and 54% respectively, p = 0.212), previous thromboembolic disease (5 and 15% respectively, p = 0.126). The incidence of protrusive aortic atheroma (12 and 11% respectively, p = 0.919), of spontaneous contrast in the thoracic aorta (15 and 14% respectively, p = 0.847) were identical in both groups. The left atrium was significantly smaller (3.1 +/- 0.7 and 6 +/- 3 cm2 respectively, p = 0.001), spontaneous atrial contrast less frequent (17 and 37% respectively, p = 0.024) and the velocities of atrial emptying higher (47 +/- 10 and 30 +/- 10 cm/s respectively, p = 0.030) in patients with flutter compared with atrial fibrillation. There was no difference in left ventricular fractional shortening (30 +/- 10 and 33 +/- 13% respectively, p = 0.630), the presence of rheumatic valvular disease (5 and 12%, p = 0.301), left atrial diameter (43 +/- 7 and 45 +/- 8, p = 0.134), right atrial surface area (16 +/- 4 and 17 +/- 6 cm2, p = 0.384) or in intraatrial thrombosis (2 and 3%, p = 0.888) respectively. These results show a high prevalence of protrusive atheroma of the thoracic aorta both in atrial flutter and in atrial fibrillation, and fewer left atrial abnormalities in patients with flutter.


Asunto(s)
Aorta Torácica/patología , Arteriosclerosis/epidemiología , Fibrilación Atrial/complicaciones , Aleteo Atrial/complicaciones , Anciano , Arteriosclerosis/etiología , Función Atrial , Ecocardiografía Transesofágica , Femenino , Atrios Cardíacos/patología , Humanos , Incidencia , Masculino , Persona de Mediana Edad
18.
Clin Chem ; 46(4): 493-505, 2000 Apr.
Artículo en Inglés | MEDLINE | ID: mdl-10759473

RESUMEN

BACKGROUND: Automated electrophoresis combined with enzymatic cholesterol staining might improve routine assessment of LDL- and HDL-cholesterol (LDLC and HDLC), as an alternative to the Friedewald equation and precipitation. A new method (Hydrasys; SEBIA) that adapts the cholesterol esterase/cholesterol oxidase reaction within urea-free gels was evaluated. METHODS: Fresh sera from 725 subjects (512 dyslipidemics) were analyzed by electrophoresis, in parallel with sequential ultracentrifugation, beta-quantification, calculation, and precipitation. RESULTS: Electrophoresis was linear up to 4 g/L cholesterol, with a detection limit of 0.042 g/L cholesterol/band. Within-run, between-run, between-batch, and between-operator imprecision (CVs) were 1.6%, 2.0%, 1.5%, and 2.7% for LDLC, and 3.9%, 4.3%, 5.5%, and 4.9% for HDLC, and remained unchanged up to 6.3 g/L plasma triglycerides (TGs). Precision decreased with very low HDLC (<0.25 g/L). Serum storage for 3-7 days at +4 or -80 degrees C did not interfere significantly with the assay. Agreement with beta-quantification was stable for LDLC up to 5.07 g/L (r = 0.94), even at TG concentrations >4 g/L (r = 0.91). Bias (2.88% +/- 12%) and total error (7.84%) were unchanged at TG concentrations up to 18.5 g/L. Electrophoresis predicted National Cholesterol Education Program cut-points with <0.04 g/L error, exactly and appropriately classified 79% and 96% of the subjects, and divided by 2.4 (all subjects) and 5.8 (TGs >1.5 g/L) the percentage of subjects underestimated by calculation. One-half of the patients with TGs >4 g/L had LDLC >1.30 g/L. For HDLC, correlation was better with precipitation (r = 0.87) than ultracentrifugation (r = 0.76). Error (-0.10% +/- 26%) increased when HDLC decreased (<0.35 g/L). Direct assessment of the LDLC/HDLC ratio detected 45% more high-risk subjects than the calculation/precipitation combination. CONCLUSIONS: Electrophoresis provides reliable quantification of LDLC, improving precision, accuracy, and concordance over calculation, particularly with increasing plasma TGs. Implementation of methods to detect low cholesterol concentrations could extend the applications for HDLC assessment.


Asunto(s)
HDL-Colesterol/sangre , LDL-Colesterol/sangre , Adolescente , Adulto , Anciano , Anciano de 80 o más Años , Apolipoproteínas E/sangre , Bilirrubina/análisis , Precipitación Química , Niño , Colesterol Oxidasa , Colorimetría , Electroforesis en Gel de Agar , Femenino , Hemoglobinas/análisis , Heparina de Bajo-Peso-Molecular/sangre , Humanos , Lipoproteína(a)/sangre , Masculino , Persona de Mediana Edad , Estudios Prospectivos , Sensibilidad y Especificidad , Esterol Esterasa , Ultracentrifugación
19.
Arch Mal Coeur Vaiss ; 91(9): 1151-8, 1998 Sep.
Artículo en Francés | MEDLINE | ID: mdl-9805575

RESUMEN

Myocarditis is a focalised or diffuse disease of the myocardium. The principal causal agents are viruses in Europe and North America and a parasite in South America (Chagas' disease). The prevalence of acute myocarditis is variable, related to the periodic cycle of viral epidemics. The diagnosis is difficult to establish because the clinical presentation is variable, ranging from asymptomatic forms to rapidly fatal acute congestive heart failure. The diagnostic tools suffer from lack of sensitivity or specificity. Endomyocardial biopsy, despite its low sensitivity, remains the reference investigation as it provides histological proof of the myocarditis. Myocardial scintigraphy with antimyosin antibodies has the advantage of very good sensitivity but with less specificity. The authors discuss the critical indications and limitations of each investigation.


Asunto(s)
Técnicas de Diagnóstico Cardiovascular/normas , Miocarditis/diagnóstico , Biopsia , Endocardio/patología , Insuficiencia Cardíaca/etiología , Humanos , Miocarditis/epidemiología , Miocarditis/virología , Miocardio/patología , Cintigrafía , Sensibilidad y Especificidad
SELECCIÓN DE REFERENCIAS
DETALLE DE LA BÚSQUEDA