Carga económica de la varicela en niños en Perú, entre 2011 y 2016 / Economic Burden of Varicella in Children in Peru from 2011 to 2016

Objetivo: Describir las complicaciones más frecuentes y la carga económica asociada con la varicela en el Perú. Material y métodos: Estudio multicéntrico de revisión de historias clínicas de pacientes de 1 a 14 años con diagnóstico de varicela entre 2011 y 2016. El uso de recursos de atención médica (URAM) asociados con la varicela, los costos unitarios y la pérdida de trabajo se utilizaron para estimar los costos directos e indirectos, presentados en USD ($). Los datos de costos y URAM se combinaron con estimaciones de carga de enfermedad para calcular el costo total anual de la varicela en el Perú. Resultados: Se incluyeron un total de 179 niños con varicela (101 ambulatorios, 78 hospitalizados). Entre los pacientes ambulatorios, el 5,9 % presentó una o más complicaciones, en comparación con 96,2 % de pacientes hospitalizados. El URAM incluyó el uso de medicamentos de venta libre (72,3 % frente a 89,7 % de pacientes ambulatorios y hospitalizados, respectivamente), medicamentos con receta (30,7 % frente a 94,9 %) y análisis y procedimientos (0,0 % frente a 80,8 %). Los costos directos e indirectos por caso ambulatorio fueron $36 y $62 respectivamente y por caso hospitalizado fueron $548 y $222. El costo anual total asociado con la varicela se estimó en $13 907 146. Conclusión: La varicela está asociada con complicaciones clínicas importantes y elevado URAM en Perú, lo que respalda la necesidad de implementación de un plan de vacunación universal. (AU)

Objective: The purpose of this study was to evaluate the clinical and economic burden associated with varicella in Peru. Methods: This was a multicenter, retrospective chart review study of patients aged 1-14 years with a varicella diagnosis between 2011 and 2016. Healthcare resource utilization (HCRU) associated with varicella, unit costs, and work loss were used to estimate direct and indirect costs, presented in USD ($). The cost and HCRU data was combined with estimates of varicella disease burden to estimate the overall annual costs of management of varicella in Peru. Results: A total of 179 children with varicella (101 outpatients, 78 inpatients) were included. Among outpatients, 5.9% experienced ≥1 complication, compared with 96.2% of inpatients. HCRU estimates included use of over-the-counter (OTC) medications (72.3% vs. 89.7% of outpatient and inpatients, respectively), prescription medications (30.7% vs. 94.9%), tests/procedures (0.0% vs. 80.8%). Among outpatients, direct and indirect costs per case were $36 and $62, respectively; among inpatients, respective costs were $548 and $222. The total annual cost associated with varicella was estimated at $ 13 907 146. Conclusion: Varicella is associated with substantial clinical complications and high HCRU in Peru, supporting the need for implementation of a routine childhood varicella vaccination plan. (AU)

Measuring herpes zoster disease burden in São Paulo, Brazil: a clinico-epidemiological single-center study

OBJECTIVES: Herpes zoster is characterized by acute neuritis and post-herpetic neuralgia. Currently, data concerning the zoster-associated impact on quality of life and healthcare resource utilization in Brazil are scarce. This study measured the zoster-associated burden in a Brazilian population. METHODS: This was a prospective, observational, single-cohort study conducted in a primary hospital's emergency room in São Paulo, Brazil. Patients enrolled at various timepoints during a zoster episode were followed over 180 days. The Zoster Brief Pain Inventory and the Initial Zoster Impact Questionnaire assessed zoster-associated pain. The EuroQoL assessed the impact of herpes zoster and/or zoster-associated pain on quality of life. Healthcare resource utilization was assessed by patient-reported questionnaires. RESULTS: One-hundred forty-six zoster patients were enrolled [mean (SD) age of 69.9 (10.9) years]. Mean (SD) worst pain scores decreased from 5.3 (3.5) at baseline to 1.9 (3.0) 180 days following rash onset. Mean (SD) EuroQoL scores significantly decreased from 0.9 (0.2) before rash appearance to 0.7 (0.2) after rash onset (p<0.001), followed by gradual improvements in quality of life over 180 days, with pre-herpes zoster quality of life achieved at the end of the observation period. The majority of patients purchased prescription medications (89.7%) and required doctor's office visits (65.8%) for zoster episodes. CONCLUSIONS: Herpes zoster is associated with a significant disease burden, including zoster-associated pain, impaired quality of life and increased healthcare resource utilization in Brazil. These results support the implementation of early intervention and prevention programs such as vaccinations to reduce the herpes zoster-associated disease burden in Brazil.

Dolor, calidad de vida relacionada con la salud y utilización de servicios médicos asociados al herpes zoster en Argentina / Herpes zoster-associated pain, health-related quality of life, and healthcare utilization in Argentina

El herpes zoster (HZ) es causado por reactivación del virus varicela-zoster latente. Se caracteriza por exantema vesicular unilateral, neuri-tis aguda y neuralgia posherpética. Aún hay escasos datos sobre el do-lor asociado al HZ (DAZ), su repercusión en la calidad de vida (CdV) y la utilización de recursos sanitarios (URS) asociada en Argentina. En este estudio prospectivo, observacio-nal, de una cohorte, realizado en 3 centros argenti-nos se valuó la carga de morbilidad asociada al HZ en Argentina en contextos clínicos reales. Los pa-cientes fueron enrolados en diversos momentos du-rante un episodio herpético, y seguidos activamen-te los días 14, 21, 30, 60, 90, 120, 150 y 180. Hubo 96 enrolados(edad 70±10,7 años; tiempo desde el inicio del exantema 16±16,9 días[media±DE]). El puntaje del peor dolor (media±DE) disminuyó de 5,5±3,1 en el enrolamiento a 0,2±0,7 a los 180 días de seguimiento. El puntaje del cuestionario de cali-dad de vida EQ-5D (media±DE) disminuyó significa-tivamente de 0,8±0,1 antes del inicio del exantema a 0,6±0,2 tras su inicio (P<0,001), con mejoría gra-dual de la CdV durante 180 días (0,9±0,1), hasta un puntaje similar al previo al inicio del exantema. La URS más frecuente fueron visitas al consultorio mé-dico (96,9%). La gran mayoría de pacientes compró medicamentos recetados (95,8%) y de venta sin receta (83,3%) para los episodios herpéticos. El DAZ estuvo asociado a gran carga de morbili-dad, deterioro de CdV, aumento de URS y costos asociados en Argenti-na. Esto subraya la importancia de estrategias de intervención precoz o prevención para disminuir la carga de morbilidad asociada al HZ

Herpes zoster (HZ) is caused by re-activation of latent varicella zoster virus and is characterized by unilateral, vesicular cutaneous eruptions, acute neuritis, and post-herpetic neuralgia. To date, data on HZ associated pain (ZAP) and its impact on quality of life (QoL) and associated healthcare resource utilization use (HCRU) in Argentina is scarce. This study assessed the burden of illness associated with HZ in Argentina in a real-life clinical setting. This was a prospective, observational, single-cohort study conducted in 3 sites across Argentina. Patients were enrolled at various time points during the course of a zoster episode and were actively followed on days 14, 21, 30, 60, 90, 120, 150, and 180. There were 96 HZ patients enrolled with a mean±SD age and time since rash onset of 70±10. 7 years and 16±16. 9 days, respectively. Mean±SD worst pain score decreased from 5. 5±3. 1 at enrollment to 0. 2±0.7 at 180 days of follow-up. The mean±SD EQ-5D score significantly decreased from 0. 8±0. 1 before rash onset to 0. 6±0. 2 after rash onset (P <0.001) followed by gradual improvement in QoL over 180 days (0. 9±0.) reaching a similar score to that prior to rash onset. The most common HCRU was visits to the doctor's office with 96.9%. The vast majority of patients purchased prescription medications (95.8%) and over-the-counter medications (83.3%) for HZ episodes. ZAP was found to be associated with severe burden of illness, impaired QoL, increased HCRU, and associated cost in Argentina; highlighting the importance of early intervention or prevention strategies to reduce HZ-associated disease burden