Chronic liver disease-associated severe thrombocytopenia in Spain: Results from a retrospective study using machine learning and natural language processing / Trombocitopenia grave asociada a enfermedad hepática crónica en España: Resultados de un estudio retrospectivo utilizando aprendizaje automático y procesamiento de lenguaje natural

Background Patients with chronic liver disease (CLD) often develop thrombocytopenia (TCP) as a complication. Severe TCP (platelet count<50×109/L) can increase morbidity and complicate CLD management, increasing bleeding risk during invasive procedures. Objectives To describe the real-world scenario of CLD-associated severe TCP patients’ clinical characteristics. To evaluate the association between invasive procedures, prophylactic treatments, and bleeding events in this group of patients. To describe their need of medical resource use in Spain. Methods This is a retrospective, multicenter study including patients who had confirmed diagnosis of CLD and severe TCP in four hospitals within the Spanish National Healthcare Network from January 2014 to December 2018. We analyzed the free-text information from Electronic Health Records (EHRs) of patients using Natural Language Processing (NLP), machine learning techniques, and SNOMED-CT terminology. Demographics, comorbidities, analytical parameters and characteristics of CLD were extracted at baseline and need for invasive procedures, prophylactic treatments, bleeding events and medical resources used in the follow up period. Frequency tables were generated for categorical variables, whereas continuous variables were described in summary tables as mean (SD) and median (Q1–Q3). Results Out of 1,765,675 patients, 1787 had CLD and severe TCP; 65.2% were male with a mean age of 54.7 years old. Cirrhosis was detected in 46% (n=820) of patients and 9.1% (n=163) had hepatocellular carcinoma. Invasive procedures were needed in 85.6% of patients during the follow up period. Patients undergoing procedures compared to those patients without invasive procedures presented higher rates of bleeding events (33% vs 8%, p<0.0001) and higher number of bleedings. While prophylactic platelet transfusions were given to 25.6% of patients undergoing procedures, TPO receptor agonist use was only detected in 3.1% of them... (AU)

Antecedentes Los pacientes con enfermedad hepática crónica (EHC) a menudo desarrollan trombocitopenia (TCP) como agravante de su enfermedad. La TCP grave (definida por un recuento de plaquetas < 50 x 109/L) puede aumentar la morbilidad y complicar el manejo de la EPC, incrementando el riesgo de hemorragia durante los procedimientos invasivos. Objetivos Describir el escenario de mundo real de las características clínicas de los pacientes con TCP grave asociado a EHC. Evaluar la asociación entre procedimientos invasivos, tratamientos profilácticos y eventos hemorrágicos en este grupo de pacientes, así como describir el uso de recursos médicos en España. Métodos Se plantea un estudio multicéntrico retrospectivo que incluye pacientes con diagnóstico confirmado de EHC y TCP grave en cuatro hospitales de la Red Nacional de Salud de España desde enero de 2014 hasta diciembre de 2018. Analizamos la información de texto libre de la Historia Clínica Electrónica (HCE) de pacientes que utilizan procesamiento de lenguaje natural (PLN), técnicas de aprendizaje automático y terminología de SNOMED-CT. Los datos demográficos, las comorbilidades, los parámetros analíticos y las características de la EHC se extrajeron al inicio del estudio, así como la necesidad de procedimientos invasivos, tratamientos profilácticos, eventos hemorrágicos y recursos médicos utilizados en el periodo de seguimiento. Se generaron tablas de frecuencia para las variables categóricas, mientras que las variables continuas se describieron en tablas resumen como media (SD) y mediana (Q1-Q3). Resultados De 1.765.675 pacientes identificados, 1.787 tenían EHC y TCP grave, siendo el 65,2% varones con una edad media de 54,7 años. Se detectó cirrosis en el 46% (n = 820) de los pacientes y el 9,1% (n = 163) de ellos presentaron un diagnóstico de carcinoma hepatocelular... (AU)

Chronic liver disease-associated severe thrombocytopenia in Spain: Results from a retrospective study using machine learning and natural language processing.

BACKGROUND: Patients with chronic liver disease (CLD) often develop thrombocytopenia (TCP) as a complication. Severe TCP (platelet count<50×109/L) can increase morbidity and complicate CLD management, increasing bleeding risk during invasive procedures. OBJECTIVES: To describe the real-world scenario of CLD-associated severe TCP patients' clinical characteristics. To evaluate the association between invasive procedures, prophylactic treatments, and bleeding events in this group of patients. To describe their need of medical resource use in Spain. METHODS: This is a retrospective, multicenter study including patients who had confirmed diagnosis of CLD and severe TCP in four hospitals within the Spanish National Healthcare Network from January 2014 to December 2018. We analyzed the free-text information from Electronic Health Records (EHRs) of patients using Natural Language Processing (NLP), machine learning techniques, and SNOMED-CT terminology. Demographics, comorbidities, analytical parameters and characteristics of CLD were extracted at baseline and need for invasive procedures, prophylactic treatments, bleeding events and medical resources used in the follow up period. Frequency tables were generated for categorical variables, whereas continuous variables were described in summary tables as mean (SD) and median (Q1-Q3). RESULTS: Out of 1,765,675 patients, 1787 had CLD and severe TCP; 65.2% were male with a mean age of 54.7 years old. Cirrhosis was detected in 46% (n=820) of patients and 9.1% (n=163) had hepatocellular carcinoma. Invasive procedures were needed in 85.6% of patients during the follow up period. Patients undergoing procedures compared to those patients without invasive procedures presented higher rates of bleeding events (33% vs 8%, p<0.0001) and higher number of bleedings. While prophylactic platelet transfusions were given to 25.6% of patients undergoing procedures, TPO receptor agonist use was only detected in 3.1% of them. Most patients (60.9%) required at least one hospital admission during the follow up and 14.4% of admissions were due to bleeding events with a hospital length of stay of 6 (3, 9) days. CONCLUSIONS: NLP and machine learning are useful tools to describe real-world data in patients with CLD and severe TCP in Spain. Bleeding events are frequent in those patients who need invasive procedures, even receiving platelet transfusions as a prophylactic treatment, increasing the further use of medical resources. Because that, new prophylactic treatments that are not yet generalized, are needed.

Extrañamiento y delirio / Estrangement and delusion

El síndrome de Capgras es una entidad nosológica estable, clasificada dentro de los síndromes de falsa identificación delirante. Hasta la fecha, ha servido para describir clínicamente los síntomas de interpretación delirante y percepción delirante, por un lado, y para elaborar los modelos neuropsicológicos de la prosopagnosia y apreciación de la identidad y familiaridad, por otro. Se propone un déficit secuencial en el sentido de familiaridad como el proceso subyacente desde el extrañamiento hasta el delirio, definiéndose este como el resultado de un intento fallido de la pasividad por restituir la coherencia afectiva de la experiencia (AU)

Capgras syndrome is a well-defined nosological unit, classified into the delusional misidentification syndromes. It has until now provided an empirical ground for the clinical description of delusional interpretation and delusional perception. It has also been used for the neuropsychological modelling of prosopagnosia, identity and familiarity appreciation. A sequential deficit in the sense of familiarity is proposed as the underlying process taking place from estrangement to delusion, which is conceived as a failure of passivity in putting back the affective coherence of experience (AU)

[Coverage and results of a screening program for diabetic retinopathy using mydriatic retinography in primary health care]. / Cribado de retinopatía diabética mediante retinografía midriática en atención primaria.

OBJECTIVE: To identify the coverage of a diabetic retinopathy screening program in primary health care and to assess agreement between ophthalmologists and family physicians (FP) regarding retinography evaluations of diabetic patients. MATERIALS AND METHODS: Cross-sectional observational study,with a review of diabetic patients' mydriatic retinographies (2007-2008) from three urban primary health centers (PHC)(Jaén-Spain). RESULTS: A total of 296 retinographies in 2007 and 380 in 2008 (coverage=26% ± 2,4) were reviewed. Pathological retinographies were identified by 181 FPs (27% ± 1,3) and 59 (9% ± 0,3) ophthalmologists.Total agreement was moderate (kappa=0, 408 ± 0,039).Agreement was better in the latter year (0,45 vs 0,34; p < 0,001 test χ²). FP evaluations showed 97% sensitivity, 80% specificity, 33% positive predictive value, 100% negative predictive value, 4, 88 positive likelihood ratio and 0,04 negative likelihood ratio. We find variability in coverage and agreement between PHC. CONCLUSIONS: Mydriatic retinographies performed and evaluated by FPs are useful to retinopathy screening of diabetic patients. Coverage, predictive values and likelihood ratio were better in the latter year, although the interpretation should be homogenized.

Cribado de retinopatía diabética mediante retinografía midriática en atención primaria / Coverage and results of a screening program for diabetic retinopathy using mydriatic retinography in primary health care

OBJETIVOS: Conocer la cobertura de un programa de cribado de retinopatía diabética en atención primaria y la concordancia entre médicos de familia (MF) y oftalmólogos. MATERIAL Y MÉTODOS: Estudio observacional transversal. Revisión de retinografías midriáticas de pacientes con diabetes mellitus tipo 2 (2007-2008) solicitadas por MF de tres centros de salud urbanos en Jaén,España. RESULTADOS: En total 296 retinografías (2007) y 380 (2008) (cobertura=26 por ciento±2.4).Retinografías patológicas: 181 MF (27 por ciento±1.3) y 59 (9 por ciento±0.3) oftalmólogos. Concordancia global moderada (kappa=0.408±0.039), que mejora del primer al segundo año (0.34 y 0.45; p<0.001, prueba χ2). La interpretación de los MF tiene sensibilidad, 97 por ciento, especificidad, 80 por ciento, VPP, 33 por ciento, VPN, 100 por ciento, cociente de probabilidad positivo, 4.88 y negativo, 0.04. Hay variabilidad en cobertura y concordancia entre centros de salud. CONCLUSIONES: La retinografía midriática realizada e interpretada por MF es útil como cribado de retinopatía en diabéticos. En el segundo año se mejora cobertura, valores predictivos y cocientes de probabilidad, aunque se debe homogeneizar la interpretación.

OBJECTIVE: To identify the coverage of a diabetic retinopathy screening program in primary health care and to assess agreement between ophthalmologists and family physicians (FP) regarding retinography evaluations of diabetic patients. MATERIALS AND METHODS: Cross-sectional observational study,with a review of diabetic patients' mydriatic retinographies (2007-2008) from three urban primary health centers (PHC)(Jaén-Spain). RESULTS: A total of 296 retinographies in 2007 and 380 in 2008 (coverage=26 percent±2,4) were reviewed. Pathological retinographies were identified by 181 FPs (27 percent±1,3) and 59 (9 percent±0,3) ophthalmologists.Total agreement was moderate (kappa=0,408±0,039).Agreement was better in the latter year (0,45 vs 0,34; p<0,001 test χ2). FP evaluations showed 97 percent sensitivity,80 percent specificity,33 percent positive predictive value, 100 percent negative predictive value, 4, 88 positive likelihood ratio and 0,04 negative likelihood ratio. We find variability in coverage and agreement between PHC. CONCLUSIONS: Mydriatic retinographies performed and evaluated by FPs are useful to retinopathy screening of diabetic patients. Coverage, predictive values and likelihood ratio were better in the latter year, although the interpretation should be homogenized.

Clarificación y delimitación de la psicopatología. Respuesta a Villagrán / Clarifying and delimiting psychopathology. An answer to Villagrán

Aprovechando una llamada a la discusión en psicopatología, en este artículo se pretende clarificar y delimitar su concepto, tal y como los autores la entienden. Clarificar su postura y delimitarla frente a otras posiciones hegemónicas, al menos en el orden efectivo de las adhesiones. Se quiere así contribuir, de buen grado y de forma escueta, a la posibilidad de que las posturas queden lo más nítidamente establecidas y, en sucesivos encuentros, si ha lugar, no remachen sobre el mismo clavo de forma contumaz. De ello se deriva, así lo creemos, una aportación directa a la discusión psicopatológica y una mutua aclaración conceptual de las partes, que en cualquier caso debe resultar beneficiosa

In answering a call for debate in psychopathology, about the sense of revising phenomenology, this article tries to clarify and delimit its concept from the authors point of view. As brief and clearly as possible, the authors try to defend their own conception from the dominant positions, asserting the difference between psychopathology and semiology, rescuing the value of psychopathology as a technique and conceiving the psychiatric symptom as a mediation unit, more than a semiotic basic category. Subjective experience is recalled as the empirical ground for psychopathology