Increased arterial stiffness in Crohn's disease: Prevalence, associated factors and impact of anti-TNF therapy.

INTRODUCTION: Recent studies have demonstrated the growing interest in cardiovascular risk in Crohn's disease (CD), the aim of our work is to highlight the need for research into the frequency of arterial stiffness (AS) and its link with certain associated factors, particularly those related to inflammation. MATERIALS AND METHODS: This was a cross-sectional observational study involving 118 patients with CD. Pulse wave velocity (PWV) measured by applanation tonometry was the criterion for calculating AS, the study also investigated the association of AS especially the indicators of inflammation, as well as the impact of anti-TNF alpha therapy on AS. RESULTS: The prevalence of AS, after adjustment for age and blood pressure level reached more than a quarter of patients compared to the cardiovascular risk which was low. The factors that were strongly associated with AS were age, systolic and diastolic blood pressure. Two parameters related to inflammation emerged as having a highly significant link after multivariate analysis: recurrence in the last year and length of disease with a p=0.008, and an OR of 5 and 9 successively. Patients treated with anti-TNF alpha had a significant reduction in PWV. CONCLUSION: The prevalence of AS reached more than a quarter of patients with CD, the duration and recurrence rate of CD appear to be factors linked to inflammation. Treatment with anti-TNF alpha seems to slow down PWV in these patients.

[Role of diet in the prevention and development of Crohn's Disease]. / Papel de la dieta en la prevención y el desarrollo de la enfermedad de Crohn.

Introduction: Crohn's disease (CD) is a chronic recurrent inflammatory bowel disease (IBD) with frequent ileocolic location, although it can affect the entire gastrointestinal tract. It is characterized by the development of skipped lesions and transmural inflammation and its incidence is increasing. The etiology and pathogenesis are related to genetic susceptibility, intestinal microbiota, dysbiosis, immunological abnormalities and environmental factors (tobacco use, NSAIDs, oral contraceptives and diet). Diet may play a key role in the development and prevention of CD. Dietary patterns with high inflammatory potential (high intake of saturated fat, sugars, proteins, salt, as well as low consumption of fruits and vegetables) are associated with a higher risk of CD, while the consumption of a healthy diet, together with the practice of Exercise is a protective factor against relapses in IBD and reduces the risk of CD. Regarding dietary components, the consumption of fiber, as well as dietary polyphenols, has been related to the maintenance of the intestinal barrier by preventing erosion of the mucosal layer. ω-3 fatty acids, in addition to their anti-inflammatory activity, promote the balance of the intestinal microbiota and their supplementation reduces postoperative complications and accelerates recovery in patients with CD. Vitamin D also plays an important role in the integrity of the intestinal barrier by reducing permeability, in addition to having an immunomodulatory and anti-inflammatory effect, being a useful tool in the improvement of patients with CD. Prebiotics and probiotics may be useful in the treatment of IBD patients by stimulating mucus production, reducing inflammation and dysbiosis, and maintaining the integrity of the intestinal barrier.

Introducción: La enfermedad de Crohn (EC) es una enfermedad inflamatoria intestinal (EII) crónica recurrente con localización frecuente ileocólica, aunque puede afectar a todo el tracto gastrointestinal. Se caracteriza por el desarrollo de lesiones salteadas e inflamación transmural y su incidencia es cada vez mayor. La etiología y la patogénesis está relacionada con la susceptibilidad genética, la microbiota intestinal, la disbiosis, anomalías inmunológicas y factores ambientales (consumo de tabaco, AINE, anticonceptivos orales y la dieta). La dieta puede tener un papel clave en el desarrollo y en la prevención de la EC. Los patrones dietéticos con alto potencial inflamatorio (elevada ingesta de grasa saturada, azúcares, proteínas y sal, así como bajo consumo de frutas y verduras) se asocian con mayor riesgo de EC, mientras que el consumo de una dieta saludable, unida a la práctica de ejercicio, es un factor protector frente a recaídas en EII y disminuye el riesgo de EC. Respecto a los componentes alimentarios, el consumo de fibra, así como de polifenoles dietéticos, se ha relacionado con el mantenimiento de la barrera intestinal al prevenir la erosión de la capa mucosa. Los ácidos grasos ω-3, además de su actividad antiinflamatoria, favorecen el equilibrio de la microbiota intestinal y su suplementación disminuye las complicaciones posoperatorias y acelera la recuperación en pacientes con EC. También la vitamina D desempeña un papel importante en la integridad de la barrera intestinal al disminuir la permeabilidad, además de presentar un efecto inmunomodulador y antiinflamatorio. Es una herramienta útil en la mejora del paciente con EC. Los prebióticos y los probióticos pueden ser útiles en el tratamiento de pacientes con EII al estimular la producción de moco, reducir la inflamación y disbiosis y mantener la integridad de la barrera intestinal.

Small bowel Crohn's disease: Proximal lesions linked to increased inflammation and biologic treatment needs.

OBJECTIVE: Crohn's disease (CD) is heterogeneous, and proximal involvement in the small bowel (SB) is associated with worse outcomes. Nonetheless, studies on the impact of duodenal and jejunal lesions in SB CD are limited. This study aimed to investigate the clinical characteristics and outcomes of individuals diagnosed with SB CD, comparing those with and without proximal inflammation. METHODS: A cohort of 53 treatment-naive SB CD patients that underwent Capsule Endoscopy at diagnosis were retrospectively selected. The inflammatory activity was quantified using the Lewis Score for each SB tertile. RESULTS: Thirty-seven (69.8%) patients displayed inflammatory activity in the first and/or second tertile together with third tertile involvement (Proximal+T3 group). Sixteen (30.2%) had inflammation in the third tertile only (T3 group). Individuals in the Proximal+T3 group had a higher risk for moderate-to-severe inflammation (OR 4.93, 95% CI: 1.3-18.3, p=0.013). A subgroup analysis for those with mild inflammatory activity showed that individuals in the Proximal+T3 group initiated biologic drugs more often (OR 11, 95% CI: 1.1-109.7, p=0.036). CONCLUSION: Proximal SB lesions are associated with increased inflammatory activity, necessitating more frequent use of biologics in patients with mild disease. Early detection of proximal SB CD with Capsule Endoscopy may contribute to timely treatment.

Transición en enfermedades inflamatorias intestinales: de la pediatría a la adultez / Transition in inflammatory bowel diseases: from childhood to adulthood

El 25% de los pacientes con Enfermedades Inflamatorias Intestinales (EII) se diagnostican antes de los 20 años. En la mayor parte de los centros del país se lleva a cabo la "transferencia" del paciente desde un centro de atención pediátrico a uno de adultos. La "transición" es un criterio de calidad con beneficios en el control de la EII reduciendo el número de recaídas, de hospitalizaciones y de cirugías. Por tal motivo hemos desarrollado un Programa Interdisciplinario de Transición entre dos hospitales de referencia nacional e internacional en EII. Materiales y métodos: Entre 1/2021 y 12/ 2022 se incorporaron 24 pacientes que ingresaron en 3 fases: Fase 1 Pacientes entre 14 y 16 años asistidos en el Hospital Garrahan (HG) con un abordaje interdisciplinario. Fase 2. A partir de los 17 años se realizaron 2 (dos) encuentros en el HG en conjunto con gastroenterólogos de adultos evaluando adherencia y autonomía y la Fase 3 llevada a cabo en el Hospital B. Udaondo (HBU) sólo con el equipo de adultos luego de 6 meses de realizada la transferencia evaluando adherencia al tratamiento, consultas a emergencias, internación y/o cirugías Resultados: Al inicio del Programa el 66% de los pacientes presentaban una actividad moderada a severa vs el 8% al finalizar la fase 3. Luego de la transferencia el 12,5% necesito ingreso a guardia e internación y un 8% tratamiento quirúrgico. El 83% de los pacientes continúan en seguimiento luego de 6 meses de haber sido transferidos (AU)

Twenty-five percent of patients with inflammatory bowel diseases (IBD) are diagnosed before the age of 20 years. In most centers in the country, the "transfer" of the patient from a pediatric to an adult care center is done. However, "transition" is a quality criterion with benefits in the control of IBD by reducing the number of relapses, hospitalizations, and surgeries. For this reason, we developed an Interdisciplinary Transition Program between two national and international reference hospitals in IBD. Materials and Methods: Between January 2021 and December 2022, we incorporated 24 patients into a three-phase program. Phase 1 involved patients between 14 and 16 years of age seen at Garrahan Hospital (HG) with an interdisciplinary approach. Phase 2 began from 17 years of age, with two meetings held at HG involving adult gastroenterologists to evaluate adherence and autonomy. Phase 3 was conducted at Hospital B. Udaondo (HBU) only with the adult team, six months after the transfer, evaluating adherence to treatment, emergency consultations, hospitalizations, and/or surgeries. Results: At the beginning of the program, 66% of the patients presented with moderate to severe disease activity, compared to 8% at the end of Phase 3. After the transfer, 12.5% of the patients required emergency department visits and hospitalization, and 8% required surgical treatment. Eighty-three percent of the patients continue in the program and are still being followed up six months after the transfer (AU)

Monitorización terapéutica de los fármacos biológicos en la enfermedad inflamatoria intestinal. Documento de Posicionamiento del Grupo Español de Trabajo en Enfermedad de Crohn y Colitis Ulcerosa (GETECCU) / Therapeutic drug monitoring in inflammatory bowel diseases. Position statement of the Spanish Working Group on Crohn's Disease and Ulcerative Colitis

El tratamiento de la enfermedad inflamatoria intestinal (EII) ha sufrido una gran transformación tras la introducción de los fármacos biológicos. Gracias a ellos, los objetivos del tratamiento han evolucionado desde la respuesta y remisión clínica a objetivos más ambiciosos, como la remisión endoscópica o radiológica. Sin embargo, aunque los biológicos son muy eficaces, un porcentaje importante de pacientes no obtendrá una respuesta inicial o la perderá a lo largo del tiempo. Sabemos que existe una relación directa entre las concentraciones valle del biológico y su eficacia terapéutica, que cuanto más exigente sea el objetivo terapéutico serán necesarios niveles superiores del fármaco y que es frecuente la exposición insuficiente al mismo. La monitorización terapéutica de medicamentos biológicos, así como los modelos farmacocinéticos, nos brindan la posibilidad de ofrecer un enfoque personalizado del abordaje en pacientes con EII. Durante los últimos años se ha acumulado información relevante respecto a su utilidad durante o después de la inducción, así como en el mantenimiento del tratamiento biológico, en estrategias reactivas o proactivas y antes de la retirada o desintensificación del esquema.El objetivo de este documento es establecer recomendaciones sobre la utilidad de la monitorización terapéutica de biológicos en pacientes con EII, en los diferentes escenarios de la práctica clínica e identificar las áreas donde su utilidad es evidente, prometedora o controvertida. (AU)

The treatment of inflammatory bowel disease has undergone a significant transformation following the introduction of biologic drugs. Thanks to these drugs, treatment goals have evolved from clinical response and remission to more ambitious objectives, such as endoscopic or radiologic remission. However, even though biologics are highly effective, a significant percentage of patients will not achieve an initial response or may lose it over time. We know that there is a direct relationship between the trough concentrations of the biologic and its therapeutic efficacy, with more demanding therapeutic goals requiring higher drug levels, and inadequate exposure being common.Therapeutic drug monitoring of biologic medications, along with pharmacokinetic models, provides us with the possibility of offering a personalized approach to treatment for patients with IBD. Over the past few years, relevant information has accumulated regarding its utility during or after induction, as well as in the maintenance of biologic treatment, in reactive or proactive strategies, and prior to withdrawal or treatment de-escalation.The aim of this document is to establish recommendations regarding the utility of therapeutic drug monitoring of biologics in patients with inflammatory bowel disease, in different clinical practice scenarios, and to identify areas where its utility is evident, promising, or controversial. (AU)

Granulocyte and monocyte adsorptive apheresis (GMA) in patients with inflammatory bowel disease: A useful therapeutic tool not just in ulcerative colitis but also in Crohn's disease.

INTRODUCTION: Granulocyte and monocyte adsorptive apheresis (GMA) removes neutrophils and monocytes from peripheral blood, preventing their incorporation into the inflamed tissue also influencing cytokine balance. Published therapeutic efficacy in ulcerative colitis (UC) is more consistent than in Crohn's disease (CD). We assessed clinical efficacy of GMA in UC and CD 4 weeks after last induction session, at 3 and 12 months, sustained remission and corticosteroid-free remission. PATIENTS AND METHOD: Retrospective observational study of UC and CD patients treated with GMA. Partial Disease Activity Index-DAIp in UC and Harvey-Bradshaw Index-HBI in CD assessed efficacy of Adacolumn® with induction and optional maintenance sessions. RESULTS: We treated 87 patients (CD-25, UC-62), 87.3% corticosteroid-dependent (CSD), 42.5% refractory/intolerant to immunomodulators. In UC, remission and response were 32.2% and 19.3% after induction, 35.5% and 6.5% at 12 weeks and 29% and 6.5% at 52 weeks. In CD, remission rates were 60%, 52% and 40% respectively. In corticosteroid-dependent and refractory or intolerant to INM patients (UC-41, CD-14), 68.3% of UC achieved remission or response after induction, 51.2% at 12 weeks and 46.3% at 52 weeks, and 62.3%, 64.3% and 42.9% in CD. Maintained remission was achieved by 66.6% in CD and 53.1% in UC. Up to 74.5% of patients required corticosteroids at some timepoint. Corticosteroid-free response/remission was 17.7% in UC and 24% in CD. CONCLUSIONS: GMA is a good therapeutic tool for both in UC and CD patients. In corticosteroid-dependent and refractory or intolerant to INM patients it avoids biological therapy or surgery in up to 40% of them in one year.

First Mexican Consensus on Crohn's disease.

INTRODUCTION: Crohn's disease (CD) is a subtype of chronic and incurable inflammatory bowel disease. It can affect the entire gastrointestinal tract and its etiology is unknown. OBJECTIVE: The aim of this consensus was to establish the most relevant aspects related to definitions, diagnosis, follow-up, medical treatment, and surgical treatment of Crohn's disease in Mexico. MATERIAL AND METHODS: Mexican specialists in the areas of gastroenterology and inflammatory bowel disease were summoned. The consensus was divided into five modules, with 69 statements. Applying the Delphi panel method, the pre-meeting questions were sent to the participants, to be edited and weighted. At the face-to-face meeting, all the selected articles were shown, underlining their level of clinical evidence; all the statements were discussed, and a final vote was carried out, determining the percentage of agreement for each statement. RESULTS: The first Mexican consensus on Crohn's disease was produced, in which recommendations for definitions, classifications, diagnostic aspects, follow-up, medical treatment, and surgical treatment were established. CONCLUSIONS: Updated recommendations are provided that focus on definitions, classifications, diagnostic criteria, follow-up, and guidelines for conventional medical treatment, biologic therapy, and small molecule treatment, as well as surgical management.

Freiburg personality inventory in inflammatory bowel disease: diagnosis and psychotherapeutic needs / Inventario de personalidad de Freiburg en la enfermedad inflamatoria intestinal: diagnóstico y necesidades psicoterapéuticas

A pesar de los descubrimientos recientes, los pacientes con enfermedad inflamatoria intestinal (EII) aún enfrentan desafíos para lograr la remisión. Los objetivos del estudio fueron identificar las características de los pacientes con el Inventario de Personalidad de Freiburg y la intensidad de la enfermedad colónica, comorbilidades que podrían estar relacionadas con la personalidad de los sujetos. Los datos se recopilaron en el período 2019-2020 de 46 pacientes y utilizaron métodos no paramétricos. En comparación con el grupo de control, las escalas de Inhibición, Problemas de salud y Emocionalidad tenían puntuaciones brutas significativamente más altas. Las escalas de Orientación Social, Franqueza y Extraversión tuvieron puntajes brutos significativamente más bajos. El estado de salud fue un factor médico que influyó en la escala de Quejas Somáticas, los pacientes que tenían lesiones o comorbilidades tenían puntuaciones brutas significativamente más altas. Los pacientes que tenían comorbilidades además de la EII tenían puntuaciones brutas considerablemente más altas en la escala de Excitabilidad. Se requieren intervenciones psicoterapéuticas de cambio en la percepción de la vida para abordar la descripción del sufrimiento subjetivo relacionado con molestias físicas (escala de quejas somáticas), una fuerte orientación hacia el rendimiento (escala de tensión), cambios de humor, ansiedad y pesimismo (escala de emocionalidad). Otra intervención es la reconsideración y (re)priorización de valores, como la familia, las relaciones íntimas, los amigos, la salud, el crecimiento, el desarrollo, el trabajo equilibrado, todos los cuales pueden promover una sensación de bienestar y equilibrio.(AU)

Despite recent discoveries, patients with inflammatory bowel disease (IBD) still face challenges with attainment of remission. The objectives of the study were to identify the characteristics of patients with the Freiburg Personality Inventory and the intensity of the intestinal disease, comorbidities that could be related to the personality of the subjects. Data were collected in the period 2019–2020 from 46 patients and used nonparametric methods. Compared to the normative sample, the Inhibitedness, Health Concerns, and Emotionality scales had significantly higher raw scores. The Social Orientation, Frankness, and Extraversionscales had significantly lower raw scores. Health status was a medical factor that influenced the Somatic Complaintsscale, patients who had lesions or comorbidities had significantly higher raw scores. Patients who had comorbidities in addition to IBD had considerably higher raw scores on the Excitability scale. Psychotherapeutic change interventions regarding life perception are required to tackle the description of subjective suffering related to physical inconveniences (Somatic Complaintsscale), a strong orientation toward performance (Strainscale), mood swings, anxiety, and pessimism (Emotionality scale). Another intervention is reconsidering values and (re) prioritization, such as family, intimate relationships, friends, health, growth, development, balanced work, all of which can promote a feeling of well-being and balance.(AU)

Endoscopic scoring system utilization for inflammatory bowel disease activity assessment: A multicenter real-world study from Argentina / Uso de puntajes endoscopicos para la medicion de la actividad mucosa en pacientes con enfermedades inflamatorias intestinales: un estudio de vida real multicentrico de la Argentina

Background The frequency and patterns of use of scores for the assessment of endoscopic activity in inflammatory bowel disease patients are not known. Aim To describe the prevalence of adequate use of endoscopic scores in IBD patients who underwent colonoscopy in a real-life setting. Materials and methods A multicenter observational study comprising six community hospitals in Argentina was undertaken. Patients with a diagnosis of Crohn's disease or ulcerative colitis who underwent colonoscopy for endoscopic activity assessment between 2018 and 2022 were included. Colonoscopy reports of included subjects were manually reviewed to determine the proportion of colonoscopies that included an endoscopic score report. We determined the proportion of colonoscopy reports that included all of the IBD colonoscopy report quality elements proposed by BRIDGe group. Endoscopist's specialty, years of experience as well as expertise in IBD were assessed. Results A total of 1556 patients were included for analysis (31.94% patients with Crohn's disease). Mean age was 45.94±15.46. Endoscopic score reporting was found in 58.41% of colonoscopies. Most frequently used scores were Mayo endoscopic score (90.56%) and SES-CD (56.03%) for ulcerative colitis and Crohn's disease, respectively. In addition, 79.11% of endoscopic reports failed to comply with all recommendations on endoscopic reporting for inflammatory bowel disease. Conclusions A significant proportion of endoscopic reports of inflammatory bowel disease patients do not include the description of an endoscopic score to assess mucosal inflammatory activity in a real-world setting. This is also associated with a lack of compliance in recommended criteria for proper endoscopic reporting. (AU)

Introduccion La frecuencia y el patrón de uso de puntajes para evaluar la actividad endoscópica en pacientes con enfermedades inflamatorias intestinales no se conoce bien. Objetivo Describir la prevalencia de uso adecuado de puntajes de actividad endoscópica en colonoscopias de pacientes con enfermedades inflamatorias intestinales en la vida real. Materiales y métodos Se realizó un estudio multicéntrico observacional en seis hospitales de comunidad en Argentina. Se incluyeron pacientes con enfermedad de Crohn o colitis ulcerosa sometidos a colonoscopia para evaluación de la actividad endoscópica entre 2018 y 2022. Se revisaron los reportes de colonoscopias de sujetos incluidos evaluando la proporción de reportes que incluyeron algún puntaje de actividad endoscópica. Se evaluó la proporción de reportes que incluyeron los elementos de calidad en reporte de colonoscopia en enfermedades inflamatorias intestinales sugeridos por el grupo BRIDGe. Se evaluó la especialidad de los operadores, sus años de experiencia y su experiencia en el manejo de enfermedades inflamatorias intestinales. Resultados Se incluyeron 1556 pacientes (31.94% con enfermedad de Crohn). La edad promedio fue de 45.94±15.46. El reporte de algún puntaje endoscópico se identificó en el 58.41% de las colonoscopias. Los puntajes más utilizados fueron el puntaje endoscópico de Mayo (90.56%) y el SES-CD (56.03%). El 79.11% de los reportes de colonoscopias no contaban con todas las recomendaciones para el correcto reporte de colonoscopias en enfermedades inflamatorias intestinales. Conclusiones Una proporción signifivativa de reportes de colonoscopias en sujetos con enfermedades inflamatorias intestinales no incluyen puntajes endoscópicos de actividad. (AU)

Circulating leptin levels in the assessment of Crohn’s disease activity and its relation to nutritional status / Los niveles circulantes de leptina en la evaluación de la actividad de la enfermedad de Crohn y su relación con el estado nutricional

Objective: to evaluate leptin levels and its relation to nutritional status in Crohn’s disease (CD).Methods: the study included 154 CD patients and healthy controls. Leptin level was determined before treatment. Nutrition levels were assessedusing the Nutrition Risk Screening 2002 (NRS-2002) and Patient-Generated Subjective Global Assessment (PG-SGA). Indicators included bodymass index (BMI), mid-arm circumference, the circumference of the upper-arm muscle, triceps skinfold thickness, and circumference of legs.Results: leptin levels differed between CD patients (1,025 ± 874 ng/ml) and controls (18,48 ± 1,222 ng/ml). Significant differences were seenin NRS-2002, PG-SGA scores, BMI and other nutritional indicators. Negative correlations were observed between leptin and NRS-2002, PG-SGAscores, while positive correlations were observed with other nutritional indicators. The receiver operating characteristic (ROC) curve showedassociation between leptin and the diagnosis of CD, suggesting leptin concentration below 803.02 ng/ml as a threshold for CD.Conclusion: dysfunctional leptin regulation may relate to poor nutritional status associated with CD. The leptin level is thus an additional toolfor evaluating CD patients, predicting disease activity and clinical response. Leptin may be a potential target for intervention in CD to improvenutritional status.(AU)

Objetivo: evaluar los niveles de leptina y su relación con el estado nutricional en la enfermedad de Crohn (EC).Métodos: se incluyeron 154 pacientes con EC y controles sanos. El nivel de leptina se determinó antes del tratamiento. La situación nutricionalse evaluó mediante el examen de riesgo nutricional 2002 (NRS-2002) y la Valoración Global Subjetiva Generada por el Paciente (VGS-GP). Losindicadores incluyen el índice de masa corporal (IMC), la circunferencia media del brazo, la circunferencia del músculo superior del brazo, elgrosor del pliegue cutáneo del tríceps y la circunferencia de las piernas.Resultados: los niveles de leptina difirieron entre los pacientes con EC (1.025 ± 874 ng/ml) y los controles (18.48 ± 1.222 ng/ml). Se obser-varon diferencias significativas en NRS-2002, puntajes de VGS-GP, IMC y otros indicadores nutricionales. Se observaron correlaciones negativasentre leptina y NRS-2002, puntuaciones de VGS-GP, mientras que se observaron correlaciones positivas con otros indicadores nutricionales.La curva ROC mostró asociación entre leptina y el diagnóstico de EC, sugiriendo concentraciones de leptina por debajo de 803,02 ng/ml comoumbral para EC.Conclusión: puede relacionarse la alteración en la regulación de la leptina con la peor situación nutricional en enfermos con EC. La leptinapuede ser un objetivo potencial para la intervención en EC a fin de mejorar el estado nutricional.(AU)

Therapeutic drug monitoring in inflammatory bowel diseases. Position statement of the Spanish Working Group on Crohn's Disease and Ulcerative Colitis. / Monitorización terapéutica de los fármacos biológicos en la enfermedad inflamatoria intestinal. Documento de Posicionamiento del Grupo Español de Trabajo en Enfermedad de Crohn y Colitis Ulcerosa (GETECCU).

The treatment of inflammatory bowel disease has undergone a significant transformation following the introduction of biologic drugs. Thanks to these drugs, treatment goals have evolved from clinical response and remission to more ambitious objectives, such as endoscopic or radiologic remission. However, even though biologics are highly effective, a significant percentage of patients will not achieve an initial response or may lose it over time. We know that there is a direct relationship between the trough concentrations of the biologic and its therapeutic efficacy, with more demanding therapeutic goals requiring higher drug levels, and inadequate exposure being common. Therapeutic drug monitoring of biologic medications, along with pharmacokinetic models, provides us with the possibility of offering a personalized approach to treatment for patients with IBD. Over the past few years, relevant information has accumulated regarding its utility during or after induction, as well as in the maintenance of biologic treatment, in reactive or proactive strategies, and prior to withdrawal or treatment de-escalation. The aim of this document is to establish recommendations regarding the utility of therapeutic drug monitoring of biologics in patients with inflammatory bowel disease, in different clinical practice scenarios, and to identify areas where its utility is evident, promising, or controversial.

Real-world experience of vedolizumab use in Colombian patients with inflammatory bowel disease-EXVEDOCOL.

BACKGROUND: Real-world studies about the effectiveness and safety of vedolizumab (VDZ) in the treatment of inflammatory bowel disease (IBD) in Latin America are scarce. Our study describes the effectiveness and safety of VDZ in Colombian patients with IBD. METHODS: EXVEDOCOL (EXperience of VEDOlizumab in COLombia) was a retrospective, multicenter, observational study. Adults with IBD receiving a first dose of VDZ between July 2016 and October 2018 were included. The co-primary outcomes clinical response, and remission, were determined at week 14 and last visit during the maintenance phase (LVMP). The secondary outcomes, deep remission and loss of response were recorded at LVMP. RESULTS: Thirty-one patients (25 ulcerative colitis (UC), 6 Crohn's disease (CD)) were included. At week 14, clinical response was achieved by 87.1% (27/31) of the patients treated with VDZ, while loss of response was reported in 6.7% (2/30). The remission rate at week 14 was 65.5% (19/29) and 75.9% (22/29) at LVMP. Prior anti-TNF exposure was reported in 61.3% (19 patients) of whom 84.2% (16/19) achieved clinical response at week 14 and 89.5% (17/19) at LVMP. For anti-TNF naïve patients, clinical response was recorded in 91.7% (11/12) at week 14 and 100% (12/12) at LVMP. CONCLUSIONS: High clinical remission rates and safety profile highlight VDZ as a valuable treatment option for IBD patients. Anti-TNF naïve patients may derive greater benefit from therapy. Studies with larger cohorts could confirm these findings.

Suboptimal response to tumor necrosis factor antagonists in inflammatory bowel disease in Latin America: EXPLORE LATAM study / Respuesta subóptima a los antagonistas del factor de necrosis tumoral en la enfermedad inflamatoria intestinal en Latinoamérica: Estudio EXPLORE LATAM

Objective Data on anti-tumor necrosis factor (anti-TNF) treatment and suboptimal response (SOR) among patients with inflammatory bowel diseases (IBD) in Latin America (LATAM) are scarce. This study evaluated the incidence and indicators of SOR to anti-TNF therapy in patients with ulcerative colitis (UC) and Crohn's disease (CD) from Argentina, Colombia and Mexico. Patients and methods We performed retrospective analysis of data from LATAM patients of the EXPLORE study (NCT03090139) including adult patients with IBD who initiated anti-TNF therapy between March 2010 to March 2015. The cumulative incidence of SOR to first-line anti-TNF therapy was assessed. A physician survey to assess barriers to anti-TNF therapies was also carried out. Results We included 185 IBD patients (UC/CD: 99/86) treated with first-line anti-TNF from Argentina (38 UC; 40 CD), Colombia (21 UC; 25 CD) and Mexico (40 UC; 21 CD). 36.4% of patients with UC and 46.5% of patients with CD experienced SOR to anti-TNF therapy during the median (interquartile range) observational period: 49.0 months (37.2–60.1) in UC, and 50.0 months (40.9–60.1) in CD. The most common indicator of SOR among patients was augmentation of non-biologic therapy (UC: 41.7%; CD: 35.0%). Affordability and late referral to IBD specialist care centers were the most common barriers to anti-TNF therapies. Conclusions SOR to anti-TNF therapy was common in LATAM IBD patients, where augmentation with non-biologic therapy represented the most frequent indicator of SOR across indications. Our findings contribute to the current evidence on the unmet needs associated with anti-TNF in LATAM (AU)

Objetivo Los datos sobre tratamiento con antagonistas del factor de necrosis tumoral (anti-TNF) y su respuesta subóptima (RSO) en las enfermedades inflamatorias intestinales (EII) en América Latina (LATAM) son escasos. Se evaluaron la incidencia e indicadores de RSO a anti-TNF en pacientes con colitis ulcerosa (CU) y enfermedad de Crohn (EC) de Argentina, Colombia y México. Pacientes y métodos Se realizó un análisis retrospectivo de datos del estudio EXPLORE LATAM (NCT03090139), incluyendo pacientes adultos con EII que iniciaron anti-TNF entre marzo de 2010 a marzo de 2015. Se evaluó la incidencia acumulada de RSO a los anti-TNF en primera línea. Además, se realizó una encuesta a especialistas sobre las barreras del tratamiento con anti-TNF. Resultados Se incluyeron 185 pacientes con EII (CU/EC: 99/86) tratados con anti-TNF en primera línea de Argentina (38 CU; 40 EC), Colombia (21 CU; 25 EC) y México (40 CU; 21 EC); 36,4% de los pacientes con CU y 46,5% de los pacientes con EC experimentaron RSO a anti-TNF durante la mediana (intervalo intercuartílico) de 49 meses (37,2-60,1) en CU y 50 meses (40,9-60,1) en EC. El indicador más común de RSO fue el aumento del tratamiento no biológico (CU: 41,7%; EC: 35,0%). La accesibilidad y la derivación tardía a centros especializados fueron las barreras más comunes para el tratamiento con anti-TNF. Conclusiones La RSO a anti-TNF fue frecuente en pacientes con EII de LATAM, el aumento del tratamiento no biológico representó el indicador más frecuente de RSO. Nuestros hallazgos contribuyen a la evidencia actual sobre las necesidades insatisfechas asociadas a los anti-TNF en LATAM (AU)

Headache in patients with inflammatory bowel disease: Migraine prevalence according to the Migraine Screening-Questionnaire (MS-Q) and headache characteristics / Cefalea en pacientes con enfermedad inflamatoria intestinal: prevalencia de migraña de acuerdo al Migraine Screening-Questionnaire (MS-Q) y características de la cefalea

Background The gut-brain axis describes a complex bidirectional association between neurological and gastrointestinal (GI) disorders. In patients with migraine, GI comorbidities are common. We aimed to evaluate the presence of migraine among patients with inflammatory bowel disease (IBD) according to Migraine Screen-Questionnaire (MS-Q) and describe the headache characteristics compared to a control group. Additionally, we explored the relationship between migraine and IBD severities. Methods We performed a cross-sectional study through an online survey including patients from the IBD Unit at our tertiary hospital. Clinical and demographic variables were collected. MS-Q was used for migraine evaluation. Headache disability scale HIT-6, anxiety-depression scale HADS, sleep scale ISI, and activity scale Harvey–Bradshaw and Partial Mayo scores were also included. Results We evaluated 66 IBD patients and 47 controls. Among IBD patients, 28/66 (42%) were women, mean age 42 years and 23/66 (34.84%) had ulcerative colitis. MS-Q was positive in 13/49 (26.5%) of IBD patients and 4/31 (12.91%) controls (p=0.172). Among IBD patients, headache was unilateral in 5/13 (38%) and throbbing in 10/13 (77%). Migraine was associated with female sex (p=0.006), lower height (p=0.003) and weight (p=0.002), anti-TNF treatment (p=0.035). We did not find any association between HIT-6 and IBD activity scales scores. Conclusions Migraine presence according to MS-Q could be higher in patients with IBD than controls. We recommend migraine screening in these patients, especially in female patients with lower height and weight and anti-TNF treatment (AU)

Introducción El eje intestino-cerebro describe una asociación bidireccional compleja entre las enfermedades neurológicas y gastrointestinales (GI). Las comorbilidades GI son frecuentes en la migraña. Nuestro objetivo fue evaluar la presencia de migraña en pacientes con enfermedad inflamatoria intestinal (EII) y describir las características de la cefalea. Además, analizamos la relación entre la gravedad de la migraña y la EII. Métodos Estudio transversal a través de encuesta electrónica en pacientes con EII de un hospital terciario. Se recogieron variables clínicas y demográficas. Se usó MS-Q para presencia de migraña. Se incluyeron escala de discapacidad de cefalea HIT-6, ansiedad-depresión HADS, sueño ISI y actividad de EII Harvey-Bradshaw y Partial Mayo. Resultados Se incluyeron 66EII y 47controles. Entre los EII, 28/66 (42%) eran mujeres, con una edad media de 42años, y 23/66 (34,84%) tenían colitis ulcerosa. El MS-Q fue positivo en 13/49 (26,5%) de EII y en 4/31 (12,91%) controles (p=0,172). Entre los pacientes con EII, la cefalea fue unilateral en 5/13 (38%) y pulsátil en 10/13 (77%). El sexo femenino (p=0.006), la altura (p=0,003) y el peso más bajos (p=0,002) y el tratamiento con anti-TNF (p=0,035) se relacionaron con la probabilidad de migraña. No encontramos asociación entre el HIT-6 y las escalas de actividad de EII. Conclusiones La presencia de migraña de acuerdo al MS-Q podría ser más alta en los pacientes con EII que en controles. Recomendamos realizar un cribado de migraña en estos pacientes, especialmente en mujeres de menor peso y altura y tratamiento anti-TNF (AU)

Infección por Leishmania en pacientes con enfermedad inflamatoria intestinal: Serie de casos y revisión de la literatura / Leishmania infection in patients with inflammatory bowel disease: Case series and literature review

La infección por Leishmania spp. en pacientes diagnosticados de enfermedad inflamatoria intestinal (EII) es rara. Considerada endémica en la cuenca del Mediterráneo, sus manifestaciones son casi exclusivas de pacientes con alteración de la inmunidad celular. La mayoría de la evidencia la encontramos a través de reportes de casos en la literatura; sin que existan guías para su manejo en pacientes con EII. Presentamos tres casos de infección por Leishmania en pacientes con EII que nos llevan a realizar una revisión de la literatura actual. La terapia inmunosupresora parece favorecer esta infección, presentándose de forma atípica, con diagnóstico desafiante. El tratamiento sistémico de entrada junto a la retirada del inmunosupresor parece ser la mejor estrategia terapéutica. Se precisan estudios en zona endémica que determinen su incidencia en pacientes con EII, así como su posible asociación con la terapia inmunosupresora. Se podría sugerir la necesidad de cribado serológico previa introducción de inmunosupresores (AU)

Infection by Leishmania spp. in patients diagnosed with inflammatory bowel disease (IBD) is rare. Considered endemic in the Mediterranean basin, its manifestations are almost exclusive of patients with impaired cellular immunity. Most of the evidence is found through case reports; without guidelines for its management in patients with IBD. In this study we present three cases of Leishmania infection in patients with IBD that lead us to carry out a review of the current literature. Immunosuppressive treatment contributes to this infection, which presents atypically, with a challenging diagnosis. Initial systemic treatment with withdrawal of the immunosuppressant drug seems to be the best therapeutic strategy. Studies are needed in endemic areas to determine its incidence in IBD patients, as well as its possible association with immunosuppressive therapy. The need for serological screening prior introduction of immunosuppressive drugs could be suggested (AU)

Recommendations on the management of severe obesity in patients with inflammatory bowel disease of the Spanish Group on Crohn's Disease and Ulcerative Colitis (GETECCU), Spanish Society of Obesity (SEEDO), Spanish Association of Surgery (AEC) and Spanish Society of Digestive Endoscopy (SEED). / Recomendaciones sobre el manejo de la obesidad grave en pacientes con enfermedad inflamatoria intestinal del Grupo Español de Trabajo en Enfermedad Inflamatoria Intestinal (GETECCU), Sociedad Española de Obesidad (SEEDO), Asociación Española de Cirugía (AEC) y Sociedad Española de Endoscopia Digestiva (SEED).

Obesity is a multifactorial, chronic, progressive and recurrent disease considered a public health issue worldwide and an important determinant of disability and death. In Spain, its current prevalence in the adult population is about 24% and an estimated prevalence in 2035 of 37%. Obesity increases the probability of several diseases linked to higher mortality such as diabetes, cardiovascular disease, hyperlipidemia, arterial hypertension, non-alcoholic fatty liver disease, several types of cancer, or obstructive sleep apnea. On the other hand, although the incidence of inflammatory bowel disease (IBD) is stabilizing in Western countries, its prevalence already exceeds 0.3%. Paralleling to general population, the current prevalence of obesity in adult patients with IBD is estimated at 15-40%. Obesity in patients with IBD could entail, in addition to its already known impact on disability and mortality, a worse evolution of the IBD itself and a worse response to treatments. The aim of this document, performed in collaboration by four scientific societies involved in the clinical care of severe obesity and IBD, is to establish clear and concise recommendations on the therapeutic possibilities of severe or typeIII obesity in patients with IBD. The document establishes general recommendations on dietary, pharmacological, endoscopic, and surgical treatment of severe obesity in patients with IBD, as well as pre- and post-treatment evaluation.

Fenotipificación y genotipificación en pacientes con enfermedad inflamatoria intestinal en un centro de referencia de Colombia / Phenotyping and genotyping in patients with inflammatory bowel disease in a reference center in Colombia

RESUMEN Introducción: Se ha tratado de identificar los factores genéticos relacionados con susceptibilidad para enfermedad inflamatoria intestinal (EII), y los hallazgos actuales se inclinan por un modelo de patología complejo, sin un patrón hereditario claro. Objetivo: Realizar caracterización fenotípica y genotípica de pacientes con EII en población colombiana y describir su posible asociación con predisposición. Materiales y métodos: Serie de casos, 16 pacientes con EII por criterios clínicos y anatomopatológicos, inicio de síntomas gastrointestinales después de los 18 años. Todos tuvieron asesoramiento genético pre-test y se realizaron árboles genealógicos de mínimo tres generaciones. También, genotipificación, por medio de un panel de genes múltiples que incluía genes relacionados con EII y algunos trastornos autoinmunitarios. Finalmente, se realizó análisis genómico de variantes. Resultados: 9 mujeres y 7 hombres, con edad media de diagnóstico de EII 35 años, y 32 años para aparición de síntomas gastrointestinales. 11/16(68,75%) requirieron terapia biológica. 10/16 (62,5%) presentaron refractariedad a terapia estándar. 3/16 (18,75%) tenían antecedentes familiares positivos de EII. 100% casos presentaron al menos un single nucleotide polymorphism relacionado con riesgo de EII en más de un gen. Los genes más relacionados con colitis ulcerosa (CU), fueron CD48, CD6, y TYK2 para CU, y CD6 e ITGAM para la enfermedad de Crohn. El gen más frecuente fue CD6. Se observó en 3/16 (18,75%) presencia de hasta 5 genes, 4 en 3/16 (18,75%), y tres en 5/16 (31,25%). Conclusión: En EII hay presencia de variantes genéticas con predisposición asociada, pero sin patogenicidad confirmada, y cuya sumatoria parece contribuir en su fisiopatología.

ABSTRACT Introduction: Attempts have been made to identify the genetic factors related to susceptibility to inflammatory bowel disease (IBD), and the current conclusions are in favor of a complex pathology model, without a clear hereditary pattern. Objective: To perform phenotypic and genotypic characterization of patients with IBD in Colombian population and to describe its possible association with predisposition. Materials and methods: case series, 16 patients with IBD according to clinical and pathological criteria, onset of gastrointestinal symptoms after 18 years of age. All had pre-test genetic counseling and family trees of at least three generations were made. Also, genotyping, using a multigene panel that included genes related to IBD and some autoimmune disorders. Finally, a genomic analysis of variants was performed. Results: 9 women and 7 men, with mean age of diagnosis of IBD of 35 years, and gastrointestinal symptoms appearance of 32 years. 11/16 (68.75%) required biological therapy. 10/16 (62.5%) were refractory to standard therapy. 3/16 (18.75%) had positive family history of IBD. 100% cases presented at least one single nucleotide polymorphism related to IBD risk in more than one gene. The genes most related to ulcerative colitis (UC) were CD48, CD6, and TYK2 for UC, and CD6 and ITGAM for Crohn's disease. The most frequent gene was CD6. It was found presence of up to 5 genes in 3/16 (18.75%), 4 in 3/16 (18.75%), and three in 5/16 (31.25%). Conclusion: In IBD there is the presence of genetic variants with associated predisposition, but without confirmed pathogenicity, and whose sum seems to contribute to its pathophysiology.

Headache in patients with inflammatory bowel disease: Migraine prevalence according to the Migraine Screening-Questionnaire (MS-Q) and headache characteristics.

BACKGROUND: The gut-brain axis describes a complex bidirectional association between neurological and gastrointestinal (GI) disorders. In patients with migraine, GI comorbidities are common. We aimed to evaluate the presence of migraine among patients with inflammatory bowel disease (IBD) according to Migraine Screen-Questionnaire (MS-Q) and describe the headache characteristics compared to a control group. Additionally, we explored the relationship between migraine and IBD severities. METHODS: We performed a cross-sectional study through an online survey including patients from the IBD Unit at our tertiary hospital. Clinical and demographic variables were collected. MS-Q was used for migraine evaluation. Headache disability scale HIT-6, anxiety-depression scale HADS, sleep scale ISI, and activity scale Harvey-Bradshaw and Partial Mayo scores were also included. RESULTS: We evaluated 66 IBD patients and 47 controls. Among IBD patients, 28/66 (42%) were women, mean age 42 years and 23/66 (34.84%) had ulcerative colitis. MS-Q was positive in 13/49 (26.5%) of IBD patients and 4/31 (12.91%) controls (p=0.172). Among IBD patients, headache was unilateral in 5/13 (38%) and throbbing in 10/13 (77%). Migraine was associated with female sex (p=0.006), lower height (p=0.003) and weight (p=0.002), anti-TNF treatment (p=0.035). We did not find any association between HIT-6 and IBD activity scales scores. CONCLUSIONS: Migraine presence according to MS-Q could be higher in patients with IBD than controls. We recommend migraine screening in these patients, especially in female patients with lower height and weight and anti-TNF treatment.

Circulating leptin levels in the assessment of Crohn's disease activity and its relation to nutritional status.

Introduction: Objective: to evaluate leptin levels and its relation to nutritional status in Crohn's disease (CD). Methods: the study included 154 CD patients and healthy controls. Leptin level was determined before treatment. Nutrition levels were assessed using the Nutrition Risk Screening 2002 (NRS-2002) and Patient-Generated Subjective Global Assessment (PG-SGA). Indicators included body mass index (BMI), mid-arm circumference, the circumference of the upper-arm muscle, triceps skinfold thickness, and circumference of legs. Results: leptin levels differed between CD patients (1,025 ± 874 ng/ml) and controls (18,481,222 ng/ml). Significant differences were seen in NRS-2002, PG-SGA scores, BMI and other nutritional indicators. Negative correlations were observed between leptin and NRS-2002, PG-SGA scores, while positive correlations were observed with other nutritional indicators. The receiver operating characteristic (ROC) curve showed association between leptin and the diagnosis of CD, suggesting leptin concentration below 803.02 ng/ml as a threshold for CD. Conclusion: dysfunctional leptin regulation may relate to poor nutritional status associated with CD. The leptin level is thus an additional tool for evaluating CD patients, predicting disease activity and clinical response. Leptin may be a potential target for intervention in CD to improve nutritional status.

Introducción: Objetivo: evaluar los niveles de leptina y su relación con el estado nutricional en la enfermedad de Crohn (EC). Métodos: se incluyeron 154 pacientes con EC y controles sanos. El nivel de leptina se determinó antes del tratamiento. La situación nutricional se evaluó mediante el examen de riesgo nutricional 2002 (NRS-2002) y la Valoración Global Subjetiva Generada por el Paciente (VGS-GP). Los indicadores incluyen el índice de masa corporal (IMC), la circunferencia media del brazo, la circunferencia del músculo superior del brazo, el grosor del pliegue cutáneo del tríceps y la circunferencia de las piernas. Resultados: los niveles de leptina difirieron entre los pacientes con EC (1.025 ± 874 ng/ml) y los controles (18.481.222 ng/ml). Se observaron diferencias significativas en NRS-2002, puntajes de VGS-GP, IMC y otros indicadores nutricionales. Se observaron correlaciones negativas entre leptina y NRS-2002, puntuaciones de VGS-GP, mientras que se observaron correlaciones positivas con otros indicadores nutricionales. La curva ROC mostró asociación entre leptina y el diagnóstico de EC, sugiriendo concentraciones de leptina por debajo de 803,02 ng/ml como umbral para EC. Conclusión: puede relacionarse la alteración en la regulación de la leptina con la peor situación nutricional en enfermos con EC.La leptina puede ser un objetivo potencial para la intervención en EC a fin de mejorar el estado nutricional.

Endoscopic scoring system utilization for inflammatory bowel disease activity assessment: A multicenter real-world study from Argentina.

BACKGROUND: The frequency and patterns of use of scores for the assessment of endoscopic activity in inflammatory bowel disease patients are not known. AIM: To describe the prevalence of adequate use of endoscopic scores in IBD patients who underwent colonoscopy in a real-life setting. MATERIALS AND METHODS: A multicenter observational study comprising six community hospitals in Argentina was undertaken. Patients with a diagnosis of Crohn's disease or ulcerative colitis who underwent colonoscopy for endoscopic activity assessment between 2018 and 2022 were included. Colonoscopy reports of included subjects were manually reviewed to determine the proportion of colonoscopies that included an endoscopic score report. We determined the proportion of colonoscopy reports that included all of the IBD colonoscopy report quality elements proposed by BRIDGe group. Endoscopist's specialty, years of experience as well as expertise in IBD were assessed. RESULTS: A total of 1556 patients were included for analysis (31.94% patients with Crohn's disease). Mean age was 45.94±15.46. Endoscopic score reporting was found in 58.41% of colonoscopies. Most frequently used scores were Mayo endoscopic score (90.56%) and SES-CD (56.03%) for ulcerative colitis and Crohn's disease, respectively. In addition, 79.11% of endoscopic reports failed to comply with all recommendations on endoscopic reporting for inflammatory bowel disease. CONCLUSIONS: A significant proportion of endoscopic reports of inflammatory bowel disease patients do not include the description of an endoscopic score to assess mucosal inflammatory activity in a real-world setting. This is also associated with a lack of compliance in recommended criteria for proper endoscopic reporting.