Guía de Práctica Clínica para el manejo de pacientes con Leucemia Linfoblástica Aguda en el Seguro Social del Perú (EsSalud) / Clinical practice guideline for the management of patients with acute lymphoblastic leukemia in Peruvian Social Security (EsSalud)

RESUMEN El presente artículo resume recomendaciones clínicas basadas en evidencia para la evaluación y el manejo de pacientes con Leucemia Linfoblástica Aguda (LLA) en EsSalud. Se conformó un grupo elaborador de la guía (GEG) que incluyó médicos especialistas y metodólogos. El GEG formuló 8 preguntas clínicas a ser respondidas por la presente GPC. Se realizó búsquedas sistemáticas de revisiones sistemáticas y -cuando fue considerado pertinente- estudios primarios en PubMed y CENTRAL durante el 2019. Se seleccionó la evidencia para responder cada una de las preguntas clínicas planteadas. La certeza de la evidencia fue evaluada usando la metodología Grading of Recommendations Assessment, Development, and Evaluation (GRADE). En reuniones de trabajo periódicas, el GEG usó la metodología GRADE para revisar la evidencia y formular las recomendaciones, los puntos de buenas prácticas clínicas y el flujograma de evaluación y manejo. La presente GPC abordó 8 preguntas clínicas, divididas en cuatro temas: diagnóstico, medidas generales, manejo quimioterápico de LLA, y trasplante. En base a dichas preguntas se formuló 5 recomendaciones (3 recomendaciones fuertes y 2 recomendaciones condicionales), 20 puntos de buena práctica clínica, y 3 flujogramas.

ABSTRACT This paper summarizes the evidence-based clinical recommendations for the assessment and management of patients with acute lymphoblastic leukemia (ALL) in Peruvian Social Security (EsSalud). A guide writing team (GWT) was convened, which included specialized physicians and methodologists. The GWT asked 8 clinical questions to be responded by the Clinical Practice Guidelines (CPG). Detailed searches of systematic reviews and - when it was considered as pertinent - primary studied featured in PubMed and CENTRAL during 2019 were performed. Evidence for responding each of the proposed clinical questions was selected. Certainty of the evidence was determined using the Grading of Recommendations Assessment, Development, and Evaluation (GRADE) methodology. In scheduled workshops, the GWT used the GRADE methodology for reviewing the evidence and propose recommendations, the points for good clinical practice, and the assessment and management flowcharts. This CPG worked on 8 clinical questions, which were divided in 4 topics: diagnosis, general measures, chemotherapy management for ALL, and transplantation. On the basis of these questions, 5 recommendations were formulated (3 strong recommendations and 2 conditional recommendations), 20 points for good clinical practice, and 3 flow charts.

The proliferation index of specific bone marrow cell compartments from myelodysplastic syndromes is associated with the diagnostic and patient outcome.

Myelodysplastic syndromes (MDS) are clonal stem cell disorders which frequently show a hypercellular dysplastic bone marrow (BM) associated with inefficient hematopoiesis and peripheral cytopenias due to increased apoptosis and maturation blockades. Currently, little is known about the role of cell proliferation in compensating for the BM failure syndrome and in determining patient outcome. Here, we analyzed the proliferation index (PI) of different compartments of BM hematopoietic cells in 106 MDS patients compared to both normal/reactive BM (n = 94) and acute myeloid leukemia (AML; n = 30 cases) using multiparameter flow cytometry. Our results show abnormally increased overall BM proliferation profiles in MDS which significantly differ between early/low-risk and advanced/high-risk cases. Early/low-risk patients showed increased proliferation of non-lymphoid CD34(+) precursors, maturing neutrophils and nucleated red blood cells (NRBC), while the PI of these compartments of BM precursors progressively fell below normal values towards AML levels in advanced/high-risk MDS. Decreased proliferation of non-lymphoid CD34(+) and NRBC precursors was significantly associated with adverse disease features, shorter overall survival (OS) and transformation to AML, both in the whole series and when low- and high-risk MDS patients were separately considered, the PI of NRBC emerging as the most powerful independent predictor for OS and progression to AML. In conclusion, assessment of the PI of NRBC, and potentially also of other compartments of BM precursors (e.g.: myeloid CD34(+) HPC), could significantly contribute to a better management of MDS.

Relación entre presencia de comorbilidad y control del asma / Relationship Between Comorbidity and Asthma Control

Introducción. La coexistencia de procesos potencialmente agravantes es frecuente en asmáticos, especialmente en individuos con control difícil. Es objetivo primario conocer si la comorbilidad es más frecuente en los pacientes no controlados. Como objetivo secundario nos propusimos evaluar el grado de correlación entre test de control del asma (ACT) y la fracción exhalada de óxido nítrico (FENO). Pacientes y métodos. Estudio prospectivo, observacional, que comparó funcional y clínicamente dos grupos de asmáticos: controlados (ACT≥20) y no controlados (ACT<20). En todos se investigó la presencia de tabaquismo, rinosinusitis, obesidad, ansiedad, depresión, disfunción de cuerdas vocales, reflujo gastroesofágico (RGE), aspergilosis broncopulmonar alérgica (ABPA), EPOC y poliposis nasal. Resultados. Se incluyeron 56 pacientes con asma controlada y 102 con un control subóptimo. Los pacientes con un ACT≥20 tenían mejor función pulmonar, menor variabilidad del PEF, menos hiperreactividad bronquial y menores valores de FENO. Se hallaron comorbilidades en el 95% de los asmáticos controlados y en el 97% de los no controlados. Sólo la presencia de poliposis nasal, RGE y ABPA fue más frecuente en el grupo no controlado. Sin embargo, la presencia simultánea de 3 o más factores de comorbilidad fue significativamente más frecuente en los pacientes con un control subóptimo (p=0,01). No hubo correlación significativa entre los valores del FENO y los del ACT (rho=−0,08; p=0,32). Conclusiones. La suma de comorbilidades agravantes es más frecuente en pacientes con control subóptimo. No existe correlación entre los valores de ACT y de FENO (AU)

Introduction. The coexistence of potentially aggravating processes is common in asthmatics, particularly in patients with difficult control. The primary aim of this study is to ascertain whether comorbidity id more common in uncontrolled patients. As a secondary aim, we propose to evaluate the correlation between the asthma control test (ACT) and the fraction of exhaled nitric oxide (FENO). Patient and methods. A prospective, observational study comparing the function and clinical picture of two groups of asthmatics: controlled (ACT≥20) and uncontrolled (ACT<20). They were all assessed for, smoking, rhinosinusitis, obesity, anxiety, depression, vocal cord dysfunction, gastro-oesophageal reflux (GORD), allergic bronchopulmonary aspergillosis (ABPA), COPD and nasal polyps. Results. A total of 50 patients with controlled asthma and 102 with suboptimal control were included. The patients with an ACT≥20 had better lung function, less variation in PEF, less bronchial hyper-reactivity and lower FENO values. Comorbidities were found in 95% of the controlled asthmatics and in 97% of the uncontrolled. Only the presence of nasal polyps, GORD and ABPA was more frequent in the uncontrolled group. However, the simultaneous presence of 3 or more comorbidity factors was significantly more frequent in patients with sub-optimal control (P=0.01). There was no significant correlation between the FENO and the ACT values (rho=−0.08; P=0.32). Conclusions. Aggravating comorbidities are more common in patients with sub-optimal control. There was no correlation between the FENO and the ACT values (AU)