Adherencia terapéutica de pacientes con riesgo cardiovascular en atención primaria. Proyecto REAAP / Therapeutic adherence of patients with cardiovascular risk in primary care. REAAP project

Objetivo Describir las percepciones y las experiencias cotidianas de los médicos de atención primaria (AP) en el abordaje de la falta de adherencia terapéutica en pacientes con riesgo cardiovascular, así como sus expectativas y las posibles áreas de mejora. Material y métodos Estudio cualitativo (en el marco del proyecto REAAP: Red de Expertos en Adherencia de Atención Primaria) realizado en varias comunidades autónomas de España a partir de un cuestionario de respuesta abierta completado por médicos de AP. Los escritos se analizaron mediante el método marco o Framework Analysis para orientar la codificación de los temas. Resultados Participaron 18 médicos, de cuyas respuestas se identificaron tres temas principales: abordaje de la adherencia durante la práctica clínica, barreras que dificultan una correcta adherencia e intervenciones para mejorar la adherencia. Las estrategias más señaladas para facilitar la adherencia terapéutica de los pacientes fueron: mejorar la comunicación médico-paciente y la continuidad asistencial, involucrar a las farmacias comunitarias y simplificar el tratamiento prescribiendo fármacos a combinaciones fijas. Conclusiones Los médicos asistenciales de AP apuntan a que no existe una estrategia ideal que por sí sola facilite la adherencia terapéutica, siendo necesario combinar varias intervenciones para optimizarla. Conocer la problemática y las herramientas disponibles y ausentes en la práctica habitual permitirá un mejor abordaje de la adherencia de los pacientes. En esta línea, iniciativas como el proyecto REAAP son un medio importante para que el personal sanitario, y el resto de actores implicados reconozcan la importancia que merece esta cuestión (AU)

Objective To describe the perceptions and daily experiences of primary care (PC) physicians in dealing with the lack of therapeutic adherence in patients with cardiovascular risk, as well as their expectations and possible areas for improvement. Material and methods A qualitative study (within the framework of the REAAP project: Network of Experts in Adherence in Primary Care) carried out in several autonomous communities in Spain using an open-ended questionnaire completed by PC physicians and analyzed using the framework analysis method to guide the coding of the topics. Results Eighteen physicians participated, and three main themes were identified from their responses: an approach to adherence during clinical practice, barriers that hinder the appropriate adherence, and interventions to improve it. The strategies most frequently mentioned to facilitate patients’ therapeutic adherence were improving physician-patient communication and continuity of care, involving community pharmacies, and simplifying treatment by prescribing drugs in fixed combinations. Conclusions There is no single ideal strategy to facilitate therapeutic adherence, and it is necessary to combine several interventions to optimize it. The first step is to understand the problems and the tools available. Initiatives such as the REAAP project are an important means to improve patient adherence, and for healthcare personnel to recognize the importance that this issue deserves (AU)

[Therapeutic adherence of patients with cardiovascular risk in primary care. REAAP project]. / Adherencia terapéutica de pacientes con riesgo cardiovascular en atención primaria. Proyecto REAAP.

OBJECTIVE: To describe the perceptions and daily experiences of primary care (PC) physicians in dealing with the lack of therapeutic adherence in patients with cardiovascular risk, as well as their expectations and possible areas for improvement. MATERIAL AND METHODS: A qualitative study (within the framework of the REAAP project: Network of Experts in Adherence in Primary Care) carried out in several autonomous communities in Spain using an open-ended questionnaire completed by PC physicians and analyzed using the framework analysis method to guide the coding of the topics. RESULTS: Eighteen physicians participated, and three main themes were identified from their responses: an approach to adherence during clinical practice, barriers that hinder the appropriate adherence, and interventions to improve it. The strategies most frequently mentioned to facilitate patients' therapeutic adherence were improving physician-patient communication and continuity of care, involving community pharmacies, and simplifying treatment by prescribing drugs in fixed combinations. CONCLUSIONS: There is no single ideal strategy to facilitate therapeutic adherence, and it is necessary to combine several interventions to optimize it. The first step is to understand the problems and the tools available. Initiatives such as the REAAP project are an important means to improve patient adherence, and for healthcare personnel to recognize the importance that this issue deserves.

Efectos de la suplementación con vitamina D en el control del asma en pacientes adultos: una revisión sistemática / Effects of vitamin D supplementation on asthma control in adult patients: a systematic review

INTRODUCCIÓN: El asma es una enfermedad crónica inflamatoria de la vía aérea e inmunomediada en su patogénesis. La vitamina D es un inmunomodulador que regula el perfil secretor de citoquinas, entre otras funciones celulares. Una asociación entre la suficiencia de vitamina D y mejoría en la función pulmonar, control de asma y número de exacerbaciones se ha propuesto en adultos, importante dada la elevada prevalencia de insuficiencia de vitamina D globalmente. OBJETIVO: Conocer los efectos de la suplementación con vitamina D en el control del asma en adultos. MÉTODOS: Se realizó una revisión sistemática de la literatura a través de una búsqueda en la base de datos PubMed y EMBASE. Los desenlaces primarios fueron cambios en VEF1, control sintomático, frecuencia de exacerbaciones, además de eventos adversos y FEM como desenlaces secundarios. La calidad de evidencia de los desenlaces fue evaluada a través del modelo GRADE. RESULTADOS: Siete estudios fueron seleccionados después de remover duplicados y aplicar los criterios de inclusión y exclusión, con calidad de evidencia muy baja aplicando sistema GRADE. DISCUSIÓN: No se encontraron diferencias estadísticamente significativas tras la suplementación con vitamina D en los desenlaces evaluados en general, pero dada la calidad de evidencia muy baja y que no se reportaron efectos adversos serios, es necesario tomar cautelosamente estos resultados. Asímismo no se puede descartar la utilidad de esta terapia como tratamiento auxiliar a los pacientes asmáticos con este déficit vitamínico.

BACKGROUND: Asthma is an airway chronic disease, with an important inflammatory component within its pathogenesis, driven by a dysregulated immune response. Vitamin D is an immunomodulator that regulates cell proliferation, differentiation and cytokine secretion profile. An association between vitamin D sufficiency and improvement in pulmonary function, asthma control and a decrease in exacerbations have been proposed in the adult population, which falls into importance given the high prevalence of vitamin D insufficiency globally. OBJECTIVE: To know vitamin D supplementation effects in asthma control in adults. METHODS: Through a PubMed and EMBASE database search, a systematic review of the literature was conducted. Primary outcomes were: changes in FEV1, symptomatic control, exacerbation frequency and PEF and adverse events as secondary outcomes. Outcome evidence quality assessment was made using the GRADE model. Results: Seven studies were selected after taking out duplicates, applying inclusion and exclusion criteria. In all cases, evidence quality assessed by the GRADE system yielded very low quality. CONCLUSIONS: No statistically significant differences were found after vitamin D supplementation in the overall evaluated outcomes. Nonetheless, a cautious interpretation of studies is mandatory, because evidence quality was very low and no serious adverse events were reported. Hence this treatment usefulness as an ancillary therapy for vitamin D deficient asthmatic patients cannot be dismissed.

Neuroplasticidad en personas con baja visión: locus preferente retinal y su potencial para la rehabilitación visual / Neuroplasticity in people with low vision: Neuroplasticity in people with low vision: preferred retinal locus and its potential for visual rehabilitation and its potential for visual rehabilitation

Visual rehabilitation in people with irreversible Low Vision (LV) aims to optimize the use of remaining vision to execute visual tasks. Conventional rehabilitation exploits the visual potential through training using the remaining visual function, with or without visual aids, to improve performance on specific tasks. However, there is no consensus about the impact of this approach in the long term and on the quality of life of patients. On the other hand, visual neuro-rehabilitation has long-term advantages that can be complementary to conventional strategies and is based on the generation of scotoma awareness and training in the systematic use of extrafoveal regions for fixation and for use as oculomotor reference. These regions called preferred retinal loci (PRL) are established spontaneously in the peripheral retina that still retain visual function and constitute evidence of a high degree of plasticity of the visual system. There is wide evidence of the efficacy of visual neuro-rehabilitation strategies on performance in specific visual tasks, but their impact on the overall visual performance and quality of life of patients is still pending. (AU)

CADASIL: arteriopatía cerebral autonómica dominante con infartos subcorticales y leucoencefalopatía / CADASIL: Cerebral autosomal dominant arteriopathy with subcortical infarcts and leukoencephalopathy

El CADASIL es una enfermedad cerebrovascular hereditaria autosómica dominante, causada por una mutación del gen Notch3. Sus principales manifestaciones clínicas consisten en migraña, episodios isquémicos cerebrales recurrentes, demencia y trastornos neuropsiquiátricos. Se caracteriza por acumulación de material granuloso osmófilo (GOM), localizado en la capa media de las arterias cerebrales de pequeño y de mediano calibre. Se presenta el caso clínico de una mujer de 53 años, que consultó por presentar episodios autolimitados de parestesias, localizadas en hemicara izquierda. En sus antecedentes familiares presenta un hermano fallecido por ictus isquémico y otro hermano, con ictus de repetición. Se realizó el diagnóstico de sospecha de CADASIL, hallándose en el estudio genético una mutación R90C. CADASIL es un síndrome clínico infrecuente, pero cuyo diagnóstico preciso es necesario para poder ofrecer a las familias afectadas un adecuado consejo genético(AU)

CADASIL is a cerebrovascular autosomal dominant hereditary disease caused by a mutation of the Notch3 gene. Its principal clinical manifestations consist in migraine, recurrent cerebral ischemic episodes, dementia and neuropsychiatric disorders. It is characterized by accumulation of granular osmiophilic material (GOM) located in the middle layer of the small and median sized cerebral arteries. A clinical case is presented of a 53-year old woman who consulted due to self-limited episodes of paresthesias located in the left hemiface. In her family background, she had a brother who had died due to ischemic stroke and another brother who had recurrent stroke. The diagnosis was made of suspicion of CADASIL, finding a R90C mutation in the genetic study. CADASIL is an uncommon medical syndrome but one which requires an exact diagnosis in order to be able to offer adequate genetic counseling to the affected families(AU)

Conversion to sirolimus allows preservation of renal function in kidney and kidney-pancreas allograft recipients.

The major causes of graft failure are chronic allograft nephropathy (CAN) and patient mortality. Sirolimus (SRL) is a powerful immunosuppressant with a less nephrotoxic profile as well as a lower incidence of cancer. The aim of this study was to evaluate the impact of conversion to SRL from calcineurin inhibitor (CNI)-based therapy in kidney (KT) and kidney-pancreas (SPK) allograft recipients. We analyzed renal function, allograft and patient survival, and SRL-associated adverse effects in 93 adult patients (86 KT and 7 SPK), who were converted to SRL between January 2001 and November 2008. The main reason for conversion was CAN (76; 9%) and 52 (7%) were receiving tacrolimus. Conversion occurred at a median 26.2 months. There was a significant improvement in creatinine clearance (CCr) at 6 months after conversion (CCr(baseline) 51.4 vs CCr(6m) 60.4 mL/min; P < .0001), without changes at 12 and 24 months. However, proteinuria increased significantly at 6 months compared with the baseline: 150 mg/24 hours (0-453) versus 0 mg/24 hours (range, 0-309), respectively (P < .0001), but did not progress at 12 or 24 months. At the same time we observed more extensive use of angiotensin-converting enzyme inhibitors/angiotensin receptor blockers: 60/5%; 65/3% and 70/2% at 6, 12, and 24 months. There were no changes in blood pressure control. Cholesterol significantly increased at 6 months (218.2 +/- 37 vs. 186.6 +/- 44 mg/dL; P < .0001). Graft and patient survivals at 4 years were 88% and 95%, respectively. Our experience suggested that conversion to SRL constituted a safe alternative with excellent results in patient and graft survival.

Plasma chitotriosidase activity in multiple sclerosis.

A recent study has shown that chitotriosidase (Chit) may play a role in the pathogenesis of multiple sclerosis (MS). Plasma Chit activity was investigated in 219 untreated MS patients and 160 healthy controls (HC) by means of a fluorometric enzyme activity assay. Chit activity was also measured in a subgroup of 46 patients following treatment with interferon-beta (IFNbeta). Overall, plasma Chit activity was significantly increased in MS patients compared with HC, but no differences were observed between relapsing and progressive clinical forms. In addition, Chit activity was similar between patients during relapse and patients during clinical remission. Treatment with IFNbeta was associated with a significant increase in Chit activity compared with untreated patients in both responders and non-responders to treatment. Although these findings suggest a role of Chit in MS, our data do not support an association between plasma Chit activity and MS clinical course and clinical response to IFNbeta treatment.

Prevalencia de asma por diagnóstico médico en un centro de Atención Primaria y factores pronósticos de la utilización de los servicios de urgencia hospitalarios / No disponible

Objetivo: determinar la prevalencia acumulada de asma y asma activo en nuestro medio mediante diagnóstico médico y construir un índice predictivo de utilización de los servicios hospitalarios por crisis aguda de asma. Material y métodos: estudio transversal efectuado en un centro de Atención Primaria que atiende a 2.300 niños menores de 15 años. Se determinó la prevalencia acumulada de asma. Los niños que presentaron síntomas en los 12 meses previos se consideraron como asma activo. Mediante análisis de regresión logística se construyó un modelo predictivo de utilización de los servicios hospitalarios. Resultados: fueron diagnosticados de asma 195 niños (8,5%; intervalo de confianza del 95% [IC 95%]: 7,4-9,7%), cifra que corresponde a la prevalencia acumulada. Presentaron asma activo 91 (46,7%; IC 95%: 39,5-53,9%). Consultaron en urgencias del hospital de referencia 48 (24,6%; IC 95%: 18,7-31,3%). Doce (6,2%; IC 95%: 3,2-10,5%) fueron ingresados. En el análisis multivariante, la edad (odds ratio [OR]: 0,85 [IC 95%]: 0,74-0,99), el asma activo (OR: 5,7 [IC 95%]: 1,5-21,6) y el nivel de gravedad (OR: 3,6 (IC 95%: 1,3-10,6) mostraron asociación significativa con la utilización de servicios hospitalarios. Conclusiones: la prevalencia de asma en nuestro medio está situada en un rango intermedio en comparación a otros estudios. El asma activo está fuertemente asociado a un mayor uso de servicios hospitalarios, por lo que es necesario reconsiderar el tratamiento de este subgrupo de pacientes. Es necesario la realización de un gran estudio multicéntrico, emplazado en Atención Primaria, que permita elaborar un modelo predictivo de utilización de los servicios hospitalarios en España

Objective: to asses the cumulative prevalence of asthma and of active asthma in our setting using the clinical diagnosis, and to build a predictive index of utilization of hospital services by acute crisis of asthma. Material and methods: cross sectional study in a Primary Care setting attending 2,300 children less than 15 years of age. Cumulative prevalence of asthma was measured. Children presenting with symptoms in the previous 12 months were considered as having active asthma. A predictive model of utilization of hospital services was build using logistic regression analysis. Results: 195 children were diagnosed of asthma (8.5%; 95% confidence interval [95% CI]: 7.4-9.7%), figure that corresponds to the cumulative prevalence. Ninety one presented active asthma (46.7%; CI 95%: 39.5-53.9%). Forty eight visited the emergency department of the reference hospital (24.6%; CI 95%: 18.7-31.3%). Twelve (6.2%; CI 95%: 3.2-10.5%) were admitted. In the multivariate analysis, age (odds ratio [OR]: 0.85 [CI 95%]: 0.74-0.99), active asthma (OR: 5.7 [CI 95%]: 1.5-21.6) and level of severity (OR: 3.6 (CI 95%: 1.3-10.6) were significantly associated to utilization of hospital services. Conclusions: the asthma prevalence in our setting is situated in an intermediate range compared to other studies. The active asthma is strongly associated to a higher use of hospital services, so it is necessary to reconsider the treatment in this subgroup of patients. It is necessary to implement a big multicentric study, in Primary Care, in order to build a predictive model of utilization of the hospital services in Sp

Traumatismo raquimedular / Spinal cord injury

El Traumatismo Raquimedular (TRM) incluye todas las lesiones traumáticas que afectan las diferentes estructuras osteoligamentosas, cartilaginosas, musculares, vasculares, meníngeas, radiculares y medulares de la columna vertebral a cualquiera de sus niveles. Habitualmente afecta a personas jóvenes en etapa productiva. Representa un problema económico para los sistemas de salud dado el alto costo que implica su tratamiento en la etapa aguda y posterior rehabilitación. La medula espinal es el conducto a través del cual viaja la información entre el cerebro y el cuerpo; está diseñada como eje transmisor, regulador y modulador de múltiples funciones neurológicas. La lesión medular aguda es un proceso dinámico, evolutivo y multifásico a partir del momento en que se produce el traumatismo; par ello el objetivo sobre el manejo del daño espinal esta orientado a reducir el déficit neurológico resultante y prevenir alguna pérdida adicional de la función neurológica. El nivel mas frecuente de lesión es la región cervical media baja, el siguiente lugar es la unión toracolumbar; coincidiendo estos niveles con las áreas de mayor movilidad de la columna espinal. En un paciente con sospecha de daño espinal, la columna debe ser inmovilizada para prevenir el daño neurológico y la anatomía de la lesión debe ser analizada como primer paso al memento de proveer un tratamiento efectivo.

Fractura de cadera / Hip fracture

Los pacientes que sufren una fractura de cadera, comúnmente se presentan al servicio do urgencias luego de haber sufrido una caída. En la mayoría de los casos son incapaces de caminar y al examinarlos se hace evidente el acortamiento y rotación externa de la extremidad afectada. Con frecuencia tienen dolor en la cadera afectada. En algunos casos, sin embargo, los pacientes con fractura de cadera pueden quejarse solamente de un dolor vago a nivel glúteo, rodillas, muslos e ingle. En ellos puede que no se vea afectada la capacidad para caminar y el estudio radiográfico inicial puede resultar inespecífico; estudios adicionales tales coma TC, RM o Cintigrafia pueden ser necesarios para confirmar la presencia de una fractura de cadera. Cuando la fractura de cadera se detecta precozmente, el tratamiento apropiado puede minimizar la morbilidad y mortalidad; además ayuda a prevenir un rápido deterioro de la calidad de vida, que a menudo se asocia con este tipo de daño.

Hepatitis C virus infection and outcome of renal transplantation.

Chronic hepatitis B and C viruses (HBV and HCV) are common problems in renal transplant patients. There is no uniform agreement regarding their influence on graft outcomes and patient survival. We evaluated the influence of anti-HCV and hepatitis B surface antigen-positive status; gender; age>49 years at the time of transplantation; alanine aminotransferase elevation; acute rejection; type of graft; number of transplants; and maintenance/induction immunosuppressive treatment on both graft and patient survivals among a population transplanted in our center between 1991 and 2004. Univariate analysis showed that anti-HCV-positive status, three-drug immunosuppressive therapy, and one or more episodes of acute rejection were associated with diminished graft survival. Over the age of 49 years at the time of transplantation, anti-HCV-positive status, cadaveric donor, kidney-pancreas transplantation, and three-drug immunosuppressive therapy were associated with diminished patient survival. Upon multivariate analysis, reduced patient survival was associated with the same variables as in the univariate analysis: anti-HCV-positive status, three-drug immunosuppressive therapy, and one or more episodes of acute rejection were associated with diminished graft survival. In our experience, anti-HCV-positive compared with anti-HCV-negative status was associated with a reduced graft (56% vs. 75%; P=.0002) and patient survival (68% vs. 83%; P=.0028).

Hepatocellular carcinoma in renal transplant patients.

INTRODUCTION: Chronic liver diseases, especially those related to hepatitis B (HBV) and C viruses (HCV), are a common problem in renal transplant patients. Hepatocellular carcinoma (HCC) is a complication of chronic liver diseases, incidence in the renal transplant cohort is higher than in the general population (1.4% to 4% vs 0.005% to 0.015%). METHODS: We retrospectively evaluated the incidence of HCC, its clinical presentation, the treatments, and the relation to chronic viral hepatitis among the population transplanted at our center between January 1980 and December 1998 and followed to August 2003. RESULTS: During the study period, six recipients among 534 renal transplants displayed HCC (incidence 1.12% of the entire population and 2.29% of patients with chronic viral hepatitis). Among the cohort five were men, and all had chronic viral hepatitis: three HBV, one HCV, and 2, a coinfection. HCC was diagnosed 124.1 (range 45 to 244) months after transplantation. All patients presented with abnormal liver function tests and tumors larger than 5 cm. Four had more than three tumors and three had an alpha-fetoprotein level higher than 400 IU/mL. Three patients received no treatment (survivals 1, 1, and 4 months); two patients, chemoembolization (survival 6 and 12 months); and one, surgical ethanol injections (survival 4 months). The overall survival was 4.5 months. CONCLUSION: HCC in renal transplant recipients is a common complication among patients with chronic viral hepatitis. The outcome was poor because HCC was detected at an advanced stage. Screening strategies for early diagnosis must be prospectively evaluated.

Nutritional support and stroke.

Following stroke poor nutritional status is common, under recognized and associated with worse outcomes. This article explores existing assessment and management strategies aimed at recognizing and reducing the impact of malnutrition in stroke patients.

Release kinetics and up-take studies of model fluoroquinolones from carbomer hydrogels.

Hydrogels of carbomer (C) loaded with model slightly soluble fluoroquinolone antimicrobials (AMFQ), norfloxacin (I) and ciprofloxacin (II) were prepared to evaluate their physical and delivery properties. Thus, dispersions of 0.25% of C loaded with 0.2-0.5 mol equivalents of AMFQ and 0.2-0.5 mol equivalents of NaOH yielded pseudoplastic hydrogels with a high negative electrokinetic potential and good physical stability. Concentration of AMFQ in the hydrogels was, respectively, 7.2 and 34 times higher than I and II aqueous solubility, indicating a high increase in aqueous compatibility. Release of AMFQ in bicompartimetal Franz type cell occurred by zero order kinetics. Delivery rate constant (k(0)) was five to six times higher as water was replaced by NaCl solution as receptor medium. Release in agar dishes revealed that, even under high dilution, delivery remains modulated. Intestinal absorption flux coefficient in everted rat intestine (k(U)) were measured with reference solutions (RS) of free AMFQ (k(U)(RS) II>k(U)(RS) I) and with hydrogels (H), in which the pattern was reversed since k(U)(H) I>k(U)(H) II. As expected k(U)(H) II was 0.55 times lower than k(U)(RS) II. However, k(U)(H) I was 1.37 times higher than its reference, which cannot be explained from the analysis of k(0) and k(U)(RS) alone. Hydrogels C-AMFQ behave as a reservoir of AMFQ able to deliver it at a constant rate and would be useful to design topical and or systemic dosage forms.

[Acute peripheral demyelinating polyneuropathy and acute renal failure after administration of FK506]. / Polineuropatía desmielinizante periférica aguda e insuficiencia renal aguda secundaria a la administración de FK 506.

FK 506 is a potent immunosuppressive agent in clinical use in solid organ transplantation since 1989. Approximately 5% of patients receiving FK 506 develop major central nervous system toxicity but peripheral nervous system involvement is very uncommon, and there are only 4 reported cases of demyelinating polyneuropathy in patients who received a liver transplant. We report a case of demyelinating polyneuropathy associated with the use of FK 506 in a renal transplant recipient.