Desarrollo y validación de un modelo predictivo para la identificación de pacientes infectados por el VIH con problemas relacionados con los medicamentos. Estudio predictor / Development and validation of a prediction model to identify HIV+ patients with drug-related problems. A prediction study

Objetivo: Desarrollar y validar un modelo predictivo para la detección de problemas relacionados con los medicamentos (PRM) en pacientes con tratamiento antirretroviral (TAR), durante su seguimiento periódico en consultas de atención farmacéutica (AF) y previamente a la dispensación. Método Para encontrar factores pronósticos de PRM, se realizó un modelo de regresión logística binaria tras un análisis univariante, el cual identificó variables independientes relacionadas con PRM que fueron introducidas en el modelo multivariante para la selección final. La validez del modelo se determinó por el método Shrinkage y la capacidad discriminatoria por el estadístico C-Harrell. Estudio multicéntrico, abierto, prospectivo. Se incluyeron pacientes infectados por el VIH con y sin PRM. Para el diseño del modelo se incluyeron variables demográficas, clínicas y farmacoterapéuticas (relacionadas o no con el TAR).Resultados Se incluyeron 733 pacientes. Las variables «adherencia», «prescripción de fármacos con necesidad de ajuste posológico» y «número de medicamentos totales prescritos (al margen del TAR)» se relacionaban de manera independiente con la aparición de PRM. Las probabilidades predichas por el modelo, personalizando los coeficientes por el método shrinkage uniforme mostraron un valor R2=0,962 para la muestra de construcción y R2=0,872 para la de validación. La capacidad discriminatoria del modelo fue de 0,816 para la muestra de construcción y 0,779 para la de validación. Conclusiones El modelo predictivo desarrollado y validado permite la detección de pacientes con tratamiento antirretroviral y con mayor riesgo de sufrir un PRM. Las variables predictoras utilizadas se corresponden con las manejadas habitualmente en la historia farmacoterapéutica del paciente, permitiendo su empleo sistemático en la práctica asistencial (AU)

Objective: To develop and validate a prediction model for the detection of drug-related problems (DRP) in patients on antiretroviral treatment during their regular monitoring in Pharmaceutical Care Clinics before dispensing drugs. Method: Open multicentre prospective study. HIV patients with and without DRP were included. Demographic, clinical and pharmacotherapy variables (related and unrelated to antiretroviral treatment) were included in the model design. To find prognostic factors for DRP, a binary logistic regression model was created after performing a univariate analysis that identified independent variables related to DRP these variables were introduced in the multivariate model for the final selection. Model validity was determined by the shrinkage method and the discriminatory power by Harrell’s C-index. Results: 733 patients were included. The variables ‘‘adherence’’, ‘‘prescription of drugs needing dosage adjustment’’, and ‘‘total number of drugs prescribed (apart from the antiretroviral treatment)’’ were independently related to the appearance of DRP. Probabilities predicted by the model, customising the coefficients using the uniform shrinkage method, showed aR2= 0.962 for the construction sample and a R2= 0.872 for the validation sample. The discriminatory capacity of the model was 0.816 for the construction sample and 0.779 for the validationsample. Conclusions: The developed and validated model enables detection of patients on antiretroviral treatment who are at a higher risk for experiencing a DRP. The prediction variables employed are commonly used in patient’s pharmacotherapy record, allowing the model to be used in routine clinical practice (AU)

[Development and validation of a prediction model to identify HIV+ patients with drug-related problems. A prediction study]. / Desarrollo y validación de un modelo predictivo para la identificación de pacientes infectados por el VIH con problemas relacionados con los medicamentos. Estudio predictor.

OBJECTIVE: To develop and validate a prediction model for the detection of drug-related problems (DRP) in patients on antiretroviral treatment during their regular monitoring in Pharmaceutical Care Clinics before dispensing drugs. MEHOD: Open multicentre prospective study. HIV patients with and without DRP were included. Demographic, clinical and pharmacotherapy variables (related and unrelated to antiretroviral treatment) were included in the model design. To find prognostic factors for DRP, a binary logistic regression model was created after performing a univariate analysis that identified independent variables related to DRP these variables were introduced in the multivariate model for the final selection. Model validity was determined by the shrinkage method and the discriminatory power by Harrell's C-index. RESULTS: 733 patients were included. The variables "adherence", "prescription of drugs needing dosage adjustment", and "total number of drugs prescribed (apart from the antiretroviral treatment)" were independently related to the appearance of DRP. Probabilities predicted by the model, customising the coefficients using the uniform shrinkage method, showed a R(2)=0.962 for the construction sample and a R(2)=0.872 for the validation sample. The discriminatory capacity of the model was 0.816 for the construction sample and 0.779 for the validation sample. CONCLUSIONS: The developed and validated model enables detection of patients on antiretroviral treatment who are at a higher risk for experiencing a DRP. The prediction variables employed are commonly used in patient's pharmacotherapy record, allowing the model to be used in routine clinical practice.

Interacciones farmacológicas de los nuevos antirretrovirales / Drug interactions of new antiretroviral drugs

Se realiza una revisión sistemática sobre interacciones medicamentosas de los nuevos fármacos antirretrovirales. Para ello se realiza una búsqueda en Pubmed de artículos publicados entre enero de 2007 y septiembre de 2009 y se consideraron los artículos disponibles a texto completo que aportaban alguna información sobre los nuevos antirretrovirales. Esta búsqueda fue complementada a su vez con la información de las fichas técnicas de los productos y consultas en las páginas web específicas de interacciones de antirretrovirales: www.interaccioneshiv.com y www.hiv-druginteractions.org Se analiza la información de las posibles interacciones de los nuevos antirretrovirales entre sí, y con los grupos terapéuticos más frecuentemente utilizados en pacientes con el virus de la inmunodeficiencia humana (AU)

A systematic review was made of the drug interactions of new antiretroviral drugs. In order to do this a search was made in Pubmed to find articles published from January 2007 to September 2009 and the full-text articles which contained information about new antiretroviral drugs were selected. This search was then complemented with information from the technical specifications of the drugs and consultations made on webpages specialized in antiretroviral interactions: www.interaccioneshiv.com and www.hiv-druginteractions.org. The information about the possible interactions of new antiretroviral drugs with one another and with the therapeutic groups which are most widely used in patients infected with the human immunodeficiency virus was analyzed (AU)

Drug interactions of new antiretroviral drugs.

A systematic review was made of the drug interactions of new antiretroviral drugs. In order to do this a search was made in Pubmed to find articles published from January 2007 to September 2009 and the full-text articles which contained information about new antiretroviral drugs were selected. This search was then complemented with information from the technical specifications of the drugs and consultations made on webpages specialized in antiretroviral interactions: www.interaccioneshiv.com and www.hiv-druginteractions.org. The information about the possible interactions of new antiretroviral drugs with one another and with the therapeutic groups which are most widely used in patients infected with the human immunodeficiency virus was analyzed.

[The role of the hospital pharmacist in the prevention, treatment and management of the side effects associated with antiretroviral treatment]. / Papel del farmacéutico de hospital en la prevención, identificación y manejo de los efectos adversos asociados al tratamiento antirretroviral.

At present, the side effects associated with antiretroviral treatment are the main reasons for discontinuation of this kind of therapy, both in clinical trials and in regular clinical practise. On the other hand, due to the change of direction that our profession has suffered in recent years, we face the need to establish a different relationship with the patient, achieving direct and effective Pharmaceutical Care within a framework of shared responsibility for therapeutic results. Pharmacist interventions should be aimed at improving the quality of life of patients, which can only be achieved with a multidisciplinary approach and individualised and adjusted to new patterns of toxicity of the drugs currently used. The pharmacist who does this work must know how to interpret these side effects, giving accurate information to the patient about both pharmacological and non-pharmacological treatment and correct pharmaceutical follow-up which clearly sets forth the criteria for referral to medical appointments. The aim of this paper is to establish baselines so that the hospital pharmacist can perform clearly and uniformly in the prevention, identification and management of major side effects: gastrointestinal, cardiovascular, dermatological, at the central nervous system and kidney level, associated with antiretroviral therapy.

[Comparative study of errors in electronic versus manual prescription]. / Estudio comparativo de errores con prescripción electrónica versus prescripción manual.

OBJECTIVE: Electronic prescribing is considered a basic measure for the prevention and reduction of medications errors. The goal of this survey was to assess the incidence of errors occurring with electronic versus standard prescription. METHOD: A prospective, sequential, open-label study to assess errors with electronic prescribing as compared to traditional manual prescribing in two public hospitals in Balearic Islands. Errors regarding medication, diet and/or nursing orders were assesses along four process stages: medical prescription, pharmacy transcription/validation, nursing transcription, and dispensation. RESULTS: With manual prescription 1,576 errors/18,539 therapy orders (8.50%) were identified, whereas with electronic prescription 827 errors/18,885 therapy orders (4.38%) were detected, which represents a relative risk reduction by 48% and an absolute risk reduction by 4.12% (p < 0.0001). Pharmacy transcription/validation errors decreased (1.73 vs. 0.13%, p < 0.0001), as did nursing transcription errors (2.54 vs. 0.81%, p < 0.0001) and dispensation errors (2.13 vs. 0.96%, p < 0.0001); however, the number of prescription errors increased (2.10 vs. 2.40%, p = 0.0401). CONCLUSIONS: Electronic prescription is a powerful tool, and one that in this work was shown to decrease medication-, diet-, and nursing care-related errors in a highly significant way; however, it should be developed and maintained in order to achieve safety and effectiveness as required by drug usage.

Estudio comparativo de errores con prescripción electrónica versus prescripción manual / Comparative study of errors in electronic versus manual prescription

Objetivo: Evaluar la incidencia de errores que se producencon la prescripción electrónica comparada con la prescripciónmanual.Método: Estudio prospectivo, secuencial y abierto para valorarlos errores con prescripción electrónica comparándola con laprescripción manual tradicional en dos hospitales públicos de lasIslas Baleares. Se han valorado los errores de medicación, dietay/u órdenes de enfermería en cuatro fases del proceso: prescripciónmédica, transcripción/validación en farmacia, transcripciónde enfermería y dispensación.Resultados: Con la prescripción manual se detectaron 1.576errores/18.539 órdenes de tratamiento (8,50%), y con la prescripciónelectrónica 827 errores/18.885 órdenes de tratamiento(4,38%), lo que supone una reducción relativa del riesgo del 48%y una reducción absoluta del riesgo de 4,12% (p < 0,0001). Existeuna disminución de errores de transcripción/validación en farmacia(1,73 vs. 0,13%, p < 0,0001), transcripción de enfermería(2,54 vs. 0,81%, p < 0,0001) y dispensación (2,13 vs. 0,96%, p < 0,0001); sin embargo, en la prescripción se observa un aumentodel número de errores (2,10 vs. 2,40%, p = 0,0401).Conclusiones: La prescripción electrónica es una herramientamuy poderosa que ha mostrado en este trabajo disminuir deforma muy significativa los errores de medicación, dieta y cuidadosde enfermería, pero que hay que desarrollar y mantener paraconseguir la seguridad y efectividad que se pretende en la utilizaciónde medicamentos

Objective: Electronic prescribing is considered a basic measurefor the prevention and reduction of medications errors. Thegoal of this survey was to assess the incidence of errors occurringwith electronic versus standard prescription.Method: A prospective, sequential, open-label study to assesserrors with electronic prescribing as compared to traditional manualprescribing in two public hospitals in Balearic Islands. Errorsregarding medication, diet and/or nursing orders were assessesalong four process stages: medical prescription, pharmacy transcription/validation, nursing transcription, and dispensation.Results: With manual prescription 1,576 errors/18,539 therapyorders (8.50%) were identified, whereas with electronic prescription827 errors/18,885 therapy orders (4.38%) were detected,which represents a relative risk reduction by 48% and an absoluterisk reduction by 4.12% (p < 0.0001). Pharmacy transcription/validationerrors decreased (1.73 vs. 0.13%, p < 0.0001), as did nursingtranscription errors (2.54 vs. 0.81%, p < 0.0001) and dispensationerrors (2.13 vs. 0.96%, p < 0.0001); however, the number ofprescription errors increased (2.10 vs. 2.40%, p = 0.0401).Conclusions: Electronic prescription is a powerful tool, andone that in this work was shown to decrease medication-, diet-,and nursing care-related errors in a highly significant way; however,it should be developed and maintained in order to achieve safetyand effectiveness as required by drug usage

[Domiciliary intravenous antibiotic therapy]. / Antibioterapia intravenosa domiciliaria.

BACKGROUND: To assess the efficiency and safety of intravenous antibiotic therapy (IAT) when performed through the traditional simple infusion system by gravity in the home setting. PATIENTS AND METHODS: The clinical records of patients undergoing intravenous antibiotic therapy through the traditional gravitational infusion system in the home care unit over a five year period were reviewed retrospectively. RESULTS: 120 patients were treated (44 F/76 M), with a mean age of 48 years (44-52). 67% of the total had chronic diseases. Infections were most commonly found in bones and joints (38%), followed by the skin and soft tissues. A wide variety of antibiotics was used, 61% as monotherapy. 76% of them were given intermittently. 161 intravenous catheters were used, 53% of which were central catheters with peripheral insertion, 27% inserted centrally and 20% peripheral catheters. The overall incidence of phlebitis was 18% without associated bacteremia. 91% of our patients evolved well, 6% had to become in-patients, none of them due to problems with the infusion system or by their own petition. The intravenous treatment lasted a mean of 17 days at home and 25 days at both home and hospital, which represents a decrease of 2,040 hospital stays. CONCLUSIONS: The traditional gravitational system of infusion is an effective and safe method for intravenous antibiotic administration at home. For these therapies to be successful, suitable patients must be selected and continuous attention is required. This treatment at home satisfies the patient and permits hospital stays to be reduced, thus improving the use of hospital resources.

[Acute eosinophilic pneumonia: presentation of a case and review of the literature]. / Neumonía eosinófila aguda: presentación de un caso y revisión de la literatura.

Pulmonary eosinophilias are characterized by the appearance of lung infiltrates by eosinophils and the presence, commonly, of peripheral blood eosinophilia. Among idiopathic pulmonary eosinophilias, with no evidence of any cause or underlying disease, chronic eosinophilic pneumonia is the most characteristic. Recently, there has been described a few cases of eosinophilic pneumonia with many similarities to chronic eosinophilic pneumonia but with a shorter clinical course, a very good response to corticoid therapy, and without tendency to relapse. This process has been named acute eosinophilic pneumonia. We present a case of this entity and review the literature, emphasizing on the potential severity of this disease, which often conduce to progressive respiratory failure, and its excellent prognosis after appropriate treatment.