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1.
Endosc Int Open ; 9(2): E130-E136, 2021 Feb.
Article in English | MEDLINE | ID: mdl-33532549

ABSTRACT

Background and study aims: Endoscopy plays an essential role in managing patients with ulcerative colitis (UC), as it allows us to visualize and assess the severity of the disease. As such assessments are not always objective, different scores have been devised to standardize the findings. The main aim of this study was to assess the interobserver variability between the Mayo Endoscopy Score (MES), Ulcerative Colitis Endoscopy Index of Severity (UCEIS) and Ulcerative Colitis Colonoscopy Index of Severity (UCCIS) analyzing the severity of the endoscopic lesions in patients with ulcerative colitis. Patients and methods: This was a single-cohort observational study in which a colonoscopy was carried out on patients with UC, as normal clinical practice, and a video was recorded. The results from the video were classified according to the MES, UCEIS and UCCIS by three endoscopic specialists independently, and they were compared to each other. The Mayo Endoscopy Score (MES) was used to assess the clinical situation of the patient. The therapeutic impact was analyzed after colonoscopy was carried out. Results: Sixty-seven patients were included in the study. The average age was 51 (SD ±â€Š16.7) and the average MES was 3.07 (SD ±â€Š2.54). The weighted Kappa index between endoscopists A and B for the MES was 0.8; between A and C 0.52; and between B and C 0.49. The intraclass correlation coefficient for UCEIS was 0.92 among the three endoscopists (CI 95 %: 0.83-0.96) and 0.96 for UCCIS among the three endoscopists (CI 95 % 0.94-0.97). A change in treatment for 34.3 % of the patients was implemented on seeing the results of the colonoscopy. Conclusions: There was an adequate, but not perfect, correlation between the different endoscopists for MES, UCEIS, UCCIS. This was higher with the last two scores. Thus, there is still some subjectivity to be minimized through special training, on assessing the seriousness of the endoscopic lesions in patients with UC.

2.
Rev. esp. enferm. dig ; 112(11): 821-825, nov. 2020. ilus, tab
Article in Spanish | IBECS | ID: ibc-198764

ABSTRACT

INTRODUCCIÓN: la endoscopia tiene un papel fundamental en el manejo de los pacientes con colitis ulcerosa (CU), ya que permite la visualización y evaluación de la gravedad de la enfermedad. No obstante, dicha evaluación no es siempre algo objetivo, por lo que se han desarrollado diferentes escalas que pretenden homogeneizar los hallazgos. Objetico: el objetivo del estudio fue evaluar la variabilidad interobservador entre el Índice de Mayo Endoscópico (IME) y el Índice de Severidad Endoscópica de la Colitis Ulcerosa (UCEIS), al analizar la gravedad de las lesiones endoscópicas en pacientes con CU. El objetivo secundario fue analizar si la preparación catártica afectaba al grado de concordancia entre los endoscopistas. MATERIAL Y MÉTODOS: se trata de un estudio observacional comparativo de una única cohorte a la cual se realiza una colonoscopia bajo guía de práctica clínica habitual a pacientes con CU y se estadifica según el IME y el UCEIS por tres endoscopistas expertos. Para valorar el grado de correlación interobservador se utilizaron el índice de Kappa para el IME y el coeficiente de correlación intraclase para el UCEIS. Se incluyeron 67 pacientes, con edad media de 51 años (DE ± 16,7) e índice de Mayo clínico medio de 3,07 (DE ± 2,54). RESULTADOS: el índice de Kappa ponderado entre los endoscopistas A y B para el IME fue de 0,8; entre el A y el C, de 0,52; y entre el B y el C, de 0,49. Para el UCEIS, el coeficiente de correlación intraclase fue del 0,922 entre los tres endoscopistas (IC 95 %: 0,832-0,959). Se encontró una mejor correlación interobservador cuando la preparación catártica era ≥ 8 según la escala de Boston. CONCLUSIÓN: existe, por tanto, una superior correlación entre los diferentes endoscopistas para el UCEIS que para el IME, por lo que debería ser considerado como el mejor índice a utilizar en la práctica clínica. Una buena preparación catártica es importante para mejorar la correlación interobservador


No disponible


Subject(s)
Humans , Male , Female , Adult , Middle Aged , Aged , Colitis, Ulcerative/diagnostic imaging , Colitis, Ulcerative/pathology , Colonoscopy/methods , Severity of Illness Index , Reference Standards , Reference Values , Observer Variation
3.
Rev Esp Enferm Dig ; 112(11): 821-825, 2020 Nov.
Article in English | MEDLINE | ID: mdl-33054301

ABSTRACT

INTRODUCTION: endoscopy plays an essential role in the management of patients with ulcerative colitis (UC), as it allows us to visualize and assess the severity of the disease. Different scores have been devised to standardize the findings because such assessments are not always objective. AIMS: the aim of this study was to assess the interobserver variability between the Index of Mayo Endoscopy (IME) and the Ulcerative Colitis Endoscopy Index of Severity (UCEIS), analyzing the severity of the endoscopic lesions in patients with UC. The secondary aim was to analyze if the cathartic preparation affected the degree of concordance amongst the endoscopists. MATERIAL AND METHODS: this was a single-cohort observational, comparative study in which a colonoscopy was performed in patients with UC, as the normal clinical practice. The results were classified according to the IME and the UCEIS by three endoscopic specialists. In order to assess the degree of interobserver correlation, the Kappa index for IME was used and the intraclass correlation coefficient was used for UCEIS. RESULTS: sixty-seven patients were included in the study. The average age was 51 (SD ± 16.7) and the average Mayo Clinic index was 3.07 (SD ± 2.54). The weighted Kappa index between endoscopists A and B for the IME was 0.8, 0.52 between A and C and 0.49 between B and C. The intraclass correlation coefficient for UCEIS was 0.922 between the three endoscopists (95 % CI: 0.832-0.959). A better interobserver correlation was found when the cathartic preparation was ≥ 8 based on the Boston Scale. CONCLUSIONS: there was a higher correlation between the different endoscopists for the UCEIS than for the IME. Thus, this should be considered to be the best index to use in the clinical practice. A good cleansing preparation is important to improve the interobserver correlation.


Subject(s)
Colitis, Ulcerative , Cohort Studies , Colitis, Ulcerative/diagnosis , Colonoscopy , Humans , Middle Aged , Observer Variation , Severity of Illness Index
4.
Rev. esp. patol ; 45(4): 218-223, oct.-dic. 2012. tab, ilus
Article in Spanish | IBECS | ID: ibc-107860

ABSTRACT

Hemos realizado una evaluación semicuantitativa de la cantidad de pigmento hemosiderínico, en biopsias de médula ósea mediante tinción de Perls, en un total de 75 pacientes a los que se realizó esta prueba por diferentes motivos. Coincidentes en el tiempo, se han determinado a estos mismos pacientes los valores séricos de ferritina e índice de saturación de la transferrina. En el análisis de los resultados hemos observado que existe correlación estadísticamente significativa entre la intensidad de los depósitos medulares de pigmento hemosiderínico y los niveles de ferritina e índice de saturación de la transferrina. Esta observación es sugestiva de que, a pesar de las limitaciones de la tinción de Perls como técnica de rutina en biopsias de médula ósea, cuando los depósitos de pigmento hemosiderínico son detectables e intensos, el procedimiento, al menos en ciertos casos, nos da una idea de la sobrecarga férrica de los pacientes. De este modo, en algunas situaciones la detección de dicho pigmento en las biopsias de médula ósea podría complementar otros exámenes hematológicos(AU)


A semiquantitative assessment of the amount of haemosiderin pigment in bone marrow biopsies was made using Perls’ staining in a total of 75 patients with different diagnoses. Simultaneously, the serum ferritin and transferrin saturation index were measured. It was found that there is a statistically significant correlation between the intensity of the deposits of haemosiderin pigment and the serum parameters analyzed. Thus, despite the limitations of Perls’ staining as a technique for routine bone marrow biopsies, it can provide an indication of iron overload when the deposits are detectable and intense. Therefore, the detection of pigment in bone marrow biopsies could complement other haematological tests in some cases(AU)


Subject(s)
Humans , Male , Female , Hemosiderin , Bone Marrow/pathology , Bone Marrow/surgery , Biopsy/instrumentation , Biopsy/methods , Biopsy , Ferritins , Biomarkers/blood
6.
Haematologica ; 89(6): 755-6, 2004 Jun.
Article in English | MEDLINE | ID: mdl-15194547

ABSTRACT

Alterations in blood lymphocyte subsets may be involved in the development of overt myeloma. Naive (CD4+CD45RA+) and memory (CD4+CD45RO+) helper T-cell subsets are important effectors of immune T-cell regulation. We analyzed the distribution of these blood lymphocyte subpopulations in patients with monoclonal gammopathies, considering the type of disorder, clinical stage, and treatment status.


Subject(s)
Leukocyte Common Antigens/analysis , Lymphocyte Subsets/pathology , Paraproteinemias/diagnosis , Aged , Case-Control Studies , Female , Humans , Male , Paraproteinemias/pathology , Paraproteinemias/therapy
7.
Plant Physiol ; 131(2): 536-46, 2003 Feb.
Article in English | MEDLINE | ID: mdl-12586878

ABSTRACT

For most plants survival depends upon the capacity of root tips to sense and move towards water and other nutrients in the soil. Because land plants cannot escape environmental stress they use developmental solutions to remodel themselves in order to better adapt to the new conditions. The primary site for perception of underground signals is the root cap (RC). Plant roots have positive hydrotropic response and modify their growth direction in search of water. Using a screening system with a water potential gradient, we isolated a no hydrotropic response (nhr) semi-dominant mutant of Arabidopsis that continued to grow downwardly into the medium with the lowest water potential contrary to the positive hydrotropic and negative gravitropic response seen in wild type-roots. The lack of hydrotropic response of nhr1 roots was confirmed in a system with a gradient in air moisture. The root gravitropic response of nhr1 seedlings was significantly faster in comparison with those of wild type. The frequency of the waving pattern in nhr1 roots was increased compared to those of wild type. nhr1 seedlings had abnormal root cap morphogenesis and reduced root growth sensitivity to abscisic acid (ABA) and the polar auxin transport inhibitor N-(1-naphtyl)phtalamic acid (NPA). These results showed that hydrotropism is amenable to genetic analysis and that an ABA signaling pathway participates in sensing water potential gradients through the root cap.


Subject(s)
Arabidopsis/growth & development , Gravitropism/physiology , Plant Roots/growth & development , Water/physiology , Abscisic Acid/pharmacology , Arabidopsis/drug effects , Arabidopsis/genetics , Gravitropism/drug effects , Gravitropism/genetics , Mutation , Phthalimides/pharmacology , Plant Root Cap/drug effects , Plant Root Cap/genetics , Plant Root Cap/growth & development , Plant Roots/drug effects , Plant Roots/genetics , Signal Transduction/drug effects , Signal Transduction/genetics , Signal Transduction/physiology
8.
Med. clín (Ed. impr.) ; 115(20): 764-767, dic. 2000.
Article in Es | IBECS | ID: ibc-7117

ABSTRACT

Fundamento: Algunos pacientes con aparente neutropenia crónica benigna presentan trastornos de la distribución de los granulocitos entre los distintos compartimientos fisiológicos, situación que puede ponerse de manifiesto mediante diversas pruebas de movilización. La administración de hidrocortisona intravenosa es la más conocida, pero su realización e interpretación se encuentran poco estandarizadas. Se presentan los resultados de una serie de 19 pacientes con neutropenia periférica crónica idiopática a quienes se realizó la mencionada prueba de acuerdo con criterios homogéneos. Pacientes y método: Se realizó un hemograma basal, seguido de una inyección intravenosa de 200 mg de hidrocortisona, y otro hemograma a las 4 h de la inyección. Se recogieron en cada caso los siguientes datos: recuento basal de neutrófilos en sangre (RBN), recuento final de neutrófilos (RFN), diferencia entre RFN y RBN o incremento (INCR), y el cociente 60 por ciento de INCR/2,0 (* 109/l ) - RBN, al cual denominamos índice de desmarginalización (ID). Resultados: Se observaron tres patrones de respuesta (tres grupos de pacientes): patrón I, con RFN normal e ID superior o igual a 1 (compatible con seudoneutropenia con componente de hipermarginalización); patrón II, con RFN normal e ID inferior a 1 (seudoneutropenia por mecanismos distintos a hipermarginalizacion), y patrón III, con RFN subnormal e ID inferior a 1 (neutropenia verdadera). Al comparar los grupos I y II, no existen diferencias significativas en los RBN ni en los INCR, pero sí en los RFN (p = 0,026) y en el ID (p = 0,026). La comparación entre los grupos I y III arroja significación estadística en los cuatro parámetros (RBN, p = 0,07; RFN, p < 0,001; INCR, p = 0,02, e ID, p < 0,001). No hallamos diferencias entre los grupos II y III. Conclusiones: La prueba de movilización granulocitaria con 200 mg de hidrocortisona intravenosa, estableciendo 4 h de separación entre el hemograma basal y el final, permite diferenciar la seudoneutropenia con componente de hipermarginalización de la neutropenia verdadera. (AU)


Subject(s)
Middle Aged , Child , Adult , Adolescent , Male , Female , Humans , Neutrophils , Neutropenia , Chronic Disease , Hydrocortisone , Injections, Intravenous
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