Conducta actual frente la hemorragia digestiva alta: desde el diagnóstico al tratamiento / Current behavior against Upper Digestive Hemorrhage: from diagnosis to treatment

Resumen La hemorragia digestiva alta (HDA) es una emergencia médico-quirúrgica común que debe ser tratada precozmente por su alta morbimortalidad. Corresponde a sangrado del esófago, estómago o del duodeno proximal, y se divide en etiología no variceal y variceal. Dentro de las no variceales destaca la úlcera péptica como la más frecuente, siendo esta producida por un desbalance entre factores protectores y agresivos. Por otro lado, en las hemorragias variceales destacan las várices gastroduodenales, las cuales son consecuencia del aumento de la presión portal. La incidencia de la HDA a nivel mundial varía entre 37 a 172 casos por cada 100.000 habitantes por año y la mortalidad entre un 5 y un 14% según diferentes estudios. Lamentablemente, no existen cifras nacionales fidedignas de incidencia y prevalencia. El médico debe conocer bien la presentación clínica y la fisiopatología para ser asertivo en la sospecha, diagnóstico y manejo de esta patología. En cuanto al tratamiento, el enfrentamiento se divide en el manejo de urgencias y luego endoscópico, puesto que la resucitación temprana intensiva puede reducir la morbimortalidad en pacientes con HDA. A continuación se hará una revisión actualizada enfocada en los aspectos más relevantes del manejo de esta patología. Se obtuvieron los datos de Pubmed y Scielo, específicamente la búsqueda de artículos originales y de revisiones sistemáticas con las palabras "hemorragia digestiva alta", "úlcera péptica", "várices esofágicas" y otras relacionadas. Los criterios usados fueron artículos preferentemente menores a 5 años de publicación en revistas científicas de alto índice de impacto.

Upper gastrointestinal bleeding (UHD) is a common medical-surgical emergency that must be treated early due to its high morbidity and mortality. It corresponds to bleeding from the esophagus, stomach, or proximal duodenum, and is divided into non-variceal and variceal etiology. Among the non-variceal, the peptic ulcer stands out as the most frequent, being this produced by an imbalance between protective and aggressive factors. On the other hand, in variceal hemorrhages gastroduodenal varices stand out, are a consequence of increased portal pressure. The incidence of HDA worldwide varies between 37 to 172 cases per 100,000 inhabitants per year and mortality between 5 to 14% according to different studies. Unfortunately, there are no reliable national statistics of incidence and prevalence. The physician must have a good understanding of the clinical presentation and pathophysiology to be assertive in the suspicion, diagnosis, and management of this pathology. Regarding treatment, the confrontation is divided into emergency management and then endoscopic, because early intensive resuscitation can reduce morbidity and mortality in patients with UHD. This is an updated review which will be focused on the most relevant aspects of the management of this pathology. Data were obtained from Pubmed and Scielo, specifically searching for original articles and systematic reviews with the words "upper gastrointestinal bleeding", "peptic ulcer", "esophageal varices" and other related words. The criteria used were articles preferably less than 5 years old in scientific journals with a high impact index.

Perfil epidemiológico de pacientes com hemorragia gastrointestinal alta não varicosa decorrente de doença péptica em um hospital brasileiro terciário de referência / Epidemiological profile of patients with non-variceal upper gastrointestinal bleeding secondary to peptic disease in a tertiary referral brazilian hospital

ABSTRACT BACKGROUND: Non-variceal upper gastrointestinal bleeding (NVUGIB) secondary to peptic ulcer disease is a medical digestive emergency and could be one of the most serious adverse drug reactions. OBJECTIVE: To identify the frequency of diagnosis of NVUGIB secondary to peptic ulcer disease. METHODS: Prospective and epidemiological study conducted in a tertiary referral Brazilian hospital, from July 2016 to December 2019. Upper gastrointestinal endoscopies (UGE) reports were evaluated daily. The diagnosis of NVUGIB secondary to peptic ulcer disease was defined through endoscopic findings of peptic ulcer and erosive gastric lesions, and clinical symptoms. The frequency of diagnosis of NVUGIB secondary to peptic ulcer disease was estimated through the ratio between the number of patients diagnosed and the number of patients underwent UGE in the same period. RESULTS: A total of 2,779 endoscopic reports (2,503 patients) were evaluated, and 178 patients were eligible. The total frequency of diagnosis of NVUGIB secondary to peptic ulcer disease was 7.1%. The annual frequency of diagnosis between 2017 and 2019 ranged from 9.3% to 5.7%. Most patients were men (72.8%); self-declared white (71.8%); older people (56.7%); and, had no familiar or personal history of gastrointestinal diseases (60.1%). 90% of the patients had a peptic ulcer and melena (62.8%). Patients made chronic use of low-dose aspirin (29.3%), other antiplatelet agents (21.9%) and, oral anticoagulants (11.2%); and non-steroidal anti-inflammatories use in the week a prior to the onset of clinical symptoms (25.8%). CONCLUSION: Seven in every 100 patients admitted and underwent UGE in a tertiary hospital were diagnosed with NVUGIB secondary to peptic ulcer disease.

RESUMO CONTEXTO: A hemorragia digestiva alta não varicosa (HDANV) secundária à úlcera péptica é uma emergência médica digestiva e pode ser uma reação adversa a medicamento severa. OBJETIVO: Estimar a frequência de HDANV secundária à doença péptica. MÉTODOS: Estudo prospectivo e epidemiológico realizado em um hospital brasileiro terciário de referência, no período de julho de 2016 a dezembro de 2019. Os laudos de endoscopia gastrointestinal alta foram avaliados diariamente. O diagnóstico de HDANV secundária para úlcera péptica foi definido por achados endoscópicos de úlcera péptica e lesões gástricas erosivas e sintomas clínicos. A frequência de diagnóstico de HDANV secundária à úlcera péptica foi estimada por meio da razão entre o número de pacientes diagnosticados e o número de pacientes submetidos à endoscopia gastrointestinal alta no mesmo período. RESULTADOS: Um total de 2.779 laudos endoscópicos (2.503 pacientes) foram avaliados e 178 pacientes foram elegíveis. A frequência total de diagnóstico de HDANV secundária à úlcera péptica foi de 7,1%. A frequência anual de diagnósticos entre 2017 e 2019 variou de 9,3% a 5,7%. A maioria dos pacientes era do sexo masculino (72,8%); auto-declarado branco (71,8%); idoso (56,7%); e não possuía histórico familiar ou pessoal de doenças gastrointestinais (60,1%). 90% dos pacientes apresentaram úlcera péptica e melena (62,8%). Os pacientes faziam uso crônico de ácido acetilsalicílico como antiagregante plaquetário (29,3%), outros antiplaquetários (21,9%) e anticoagulantes orais (11,2%); e fizeram uso e uso de anti-inflamatórios não esteroidais na semana anterior ao início dos sintomas clínicos de HDANV (25,8%). CONCLUSÃO: Cerca de sete em cada 100 pacientes admitidos em um hospital terciário e submetidos à endoscopia gastrointestinal alta foram diagnosticados com HDANV secundária à úlcera péptica.

Efectividad del tratamiento con ácido tranexámico en la hemorragia digestiva alta / Effectiveness of Tranexamic Acid Treatment for Upper Gastrointestinal Bleeding

RESUMEN Introducción: La hemorragia digestiva alta es una entidad de elevada incidencia, de etiología múltiple y de difícil manejo. Objetivo: Evaluar la efectividad del tratamiento con ácido tranexámico en sangramiento digestivo alto. Métodos: Se realizó un estudio experimental, partiéndose de un ensayo clínico realizado en Cuba en el año 2012, que incluyó el universo de pacientes con hemorragia digestiva alta que ingresaron en el servicio de cirugía general del Hospital General Docente "Comandante Pinares" en el período comprendido entre junio del 2016 y mayo del 2018. Fueron divididos en dos grupos de estudio: a un primer grupo se les realizó el tratamiento convencional según el algoritmo establecido, y a un segundo, a los que además de los tratamientos propuestos en el algoritmo se les administró el ácido tranexámico, según protocolo para dar salida a los objetivos proyectados. Se analizaron e interpretaron las variables utilizándose números, por cientos y la técnica estadística chi cuadrado, con un 95 por ciento de confiabilidad. Resultados: Los pacientes tratados con el ácido tranexámico adicionado al protocolo de tratamiento evolucionaron satisfactoriamente; con menor estadía hospitalaria, mejor evolución de los parámetros clínicos, menor número de transfusiones e intervenciones quirúrgicas, aclaramiento de los enemas evacuantes y controles de sangramiento en 48 horas. Conclusiones: El uso del ácido tranexámico reportó mayores beneficios que el tratamiento convencional en pacientes con hemorragia digestiva alta(AU)

ABSTRACT Introduction: Upper gastrointestinal bleeding is an entity with a high incidence, multiple etiology and difficult to manage. Objective: To evaluate the effectiveness of treatment with tranexamic acid in upper digestive bleeding. Methods: An experimental study was carried out, starting from a clinical trial carried out in Cuba in 2012, which included the universe of patients with upper gastrointestinal bleeding who were admitted to the general surgery service of the General Teaching Hospital "Comandante Pinares" in the period between June 2016 and May 2018. They were divided into two study groups: a first group underwent conventional treatment according to the established algorithm, and a second, which, in addition to the treatments proposed in the algorithm, were given administered tranexamic acid, according to the protocol to achieve the projected objectives. The variables were analyzed and interpreted using numbers, per hundred and the chi square statistical technique, with 95 percent reliability. Results: The patients treated with tranexamic acid added to the treatment protocol evolved satisfactorily; with shorter hospital stay, better evolution of clinical parameters, fewer transfusions and surgical interventions, clearance of evacuating enemas and bleeding controls in 48 hours. Conclusions: The use of tranexamic acid reported greater benefits than conventional treatment in patients with upper gastrointestinal bleeding(AU)

Adesão a um protocolo de profilaxia de úlcera de estresse em pacientes críticos: estudo de coorte prospectiva / Adherence to a stress ulcer prophylaxis protocol by critically ill patients: a prospective cohort study

RESUMO Objetivo: Avaliar a adesão ao protocolo de profilaxia de úlcera de estresse em pacientes críticos de um hospital universitário terciário. Métodos: Neste estudo de coorte prospectiva, incluímos todos os pacientes adultos admitidos às unidades de terapia intensiva clínica e cirúrgica de um hospital terciário acadêmico. Nosso único critério de exclusão foi a presença de sangramento gastrointestinal alto quando da admissão à unidade de terapia intensiva. Colhemos as variáveis basais e indicações de profilaxia de úlcera de estresse, segundo o protocolo institucional, assim como o uso de profilaxia. Nosso desfecho primário foi a adesão ao protocolo de profilaxia de úlcera de estresse. Os desfechos secundários foram uso apropriado da profilaxia de úlcera de estresse, incidência de sangramento gastrointestinal superior e fatores associados com o uso apropriado da profilaxia de úlcera de estresse. Resultados: Foram incluídos 234 pacientes no período compreendido entre 2 de julho e 31 de julho de 2018. Os pacientes tinham idade de 52 ± 20 anos, sendo 125 (53%) deles cirúrgicos, e o SAPS 3 médio foi de 52 ± 20. No seguimento longitudinal, foram estudados 1.499 pacientes-dias; 1.069 pacientes-dias tiveram indicação de profilaxia de úlcera de estresse, e 777 pacientes-dias tiveram uso profilático (73% de adesão ao protocolo de profilaxia de úlcera de estresse). Dentre os 430 pacientes-dias sem indicações de profilaxia de úlcera de estresse, 242 envolveram profilaxia (56% de uso impróprio de profilaxia de úlcera de estresse). O total de uso apropriado de profilaxia de úlcera de estresse foi de 64%. Fatores associados com prescrição adequada de profilaxia de úlcera de estresse foram ventilação mecânica, com RC 2,13 (IC95% 1,64 - 2,75), e coagulopatia, com RC 2,77 (IC95% 1,66 - 4,60). A incidência de sangramento do trato gastrointestinal superior foi de 12,8%. Conclusão: A adesão ao protocolo de profilaxia de úlcera de estresse foi baixa, e o uso inadequado de profilaxia de úlcera de estresse foi frequente nesta coorte de pacientes críticos.

ABSTRACT Objective: To evaluate adherence to the stress ulcer prophylaxis protocol in critically ill patients at a tertiary university hospital. Methods: In this prospective cohort study, we included all adult patients admitted to the medical and surgical intensive care units of an academic tertiary hospital. Our sole exclusion criterion was upper gastrointestinal bleeding at intensive care unit admission. We collected baseline variables and stress ulcer prophylaxis indications according to the institutional protocol and use of prophylaxis. Our primary outcome was adherence to the stress ulcer prophylaxis protocol. Secondary outcomes were appropriate use of stress ulcer prophylaxis, upper gastrointestinal bleeding incidence and factors associated with appropriate use of stress ulcer prophylaxis. Results: Two hundred thirty-four patients were enrolled from July 2nd through July 31st, 2018. Patients were 52 ± 20 years old, 125 (53%) were surgical patients, and the mean SAPS 3 was 52 ± 20. In the longitudinal follow-up, 1499 patient-days were studied; 1069 patient-days had stress ulcer prophylaxis indications, and 777 patient-days contained prophylaxis use (73% stress ulcer prophylaxis protocol adherence). Of the 430 patient-days without stress ulcer prophylaxis indications, 242 involved prophylaxis (56% inappropriate stress ulcer prophylaxis use). The overall appropriate use of stress ulcer prophylaxis was 64%. Factors associated with proper stress ulcer prophylaxis prescription were mechanical ventilation OR 2.13 (95%CI 1.64 - 2.75) and coagulopathy OR 2.77 (95%CI 1.66 - 4.60). The upper gastrointestinal bleeding incidence was 12.8%. Conclusion: Adherence to the stress ulcer prophylaxis protocol was low and inappropriate use of stress ulcer prophylaxis was frequent in this cohort of critically ill patients.

Utilidad de la escala de Glasgow-Blatchford en pacientes con hemorragia digestiva alta no variceal, con alto y bajo riesgo de complicaciones atendidos en el Servicio de Urgencias del Hospital Santo Tomas, 2015-2016 / Glasgow-Blatchford usefulness in patients with non variceal upper gastrointestinal bleeding with low and high risk of complications seen at the Emergency Department of Santo Tomas Hospital, 2015-2016

Introducción: La escala de Glasgow-Blatchford (GBS) nos permite clasificar al paciente como riesgo alto o bajo de presentar complicaciones. En los pacientes identificados como "bajo riesgo", la realización de una endoscopia temprana, podría disminuir los días intrahospitalarios y en el coste global. En nuestro medio, desconocemos la utilidad de la escala de GBS. Objetivo: Describir la utilidad de la escala de Glasgow-Blatchford (GBS) en la estratificación del riesgo en los pacientes con hemorragia digestiva alta (HDA) no variceal atendidos en el servicio de urgencias en un hospital de tercer nivel. Materiales y métodos: Se incluyeron prospectivamente 218 pacientes, y se les realizó en las primeras 24-48 h endoscopia urgente. Éstos se estratificaron, según la escala de GBS, en bajo riesgo (GBS ≤ 2), y alto riesgo (GBS ≥ 3). Se calculó la sensibilidad, especificidad, valor predictivo positivo (VPP) y negativo (VPN) de la escala de GBS en nuestro medio basándonos en el requerimiento de tratamiento endoscópico, radiológico (embolización arterial), transfusión de hemoderivados y/o cirugía, como estándar de oro para clasificar a los pacientes en alto riesgo. Resultados: Se incluyó un total de 218 pacientes, con edad media de 56 ± 18 años, de los cuales 121/218 (55%) fueron varones. 156/218 precisaron intervención por lo que fueron clasificados como "alto riesgo" mientras 62/218 no precisaron y se clasificaron como "bajo riesgo". Un valor de corte de GBS ≤ 2 mostró una sensibilidad del 98% con un VPN de 100%. La utilidad de la escala de GBS mostró un área bajo la curva ROC 0,83 (IC 95% 0,75-0,90). Conclusión: La escala de GBS utilizada pacientes con HDA no variceal atendidos en el servicio de urgencias posee una validez diagnóstica adecuada para predecir la necesidad de intervención.

Introduction: The Glasgow-Blatchford (GBS) scale allows us to classify the patient as a high or low risk of presenting complications. In the patients identified as "low risk", the performance of an early endoscopy could reduce the intrahospital days and the overall cost. In our environment, we do not know the usefulness of the GBS scale. Objective: To describe the utility of the Glasgow-Blatchford scale (GBS) in the stratification of risk in patients with non-variceal upper gastrointestinal bleeding (HDA) seen in the emergency department of a tertiary hospital. Materials and methods: 218 patients were prospectively included, and they were performed in the first 24-48 hr an urgent endoscopy. These were stratified, according to the GBS scale, at low risk (GBS ≤ 2), and high risk (GBS ≥ 3). We calculated the sensitivity, specificity, positive predictive value (PPV) and negative predictive value (NPV) of the GBS scale in our setting based on the requirement of endoscopic, radiological treatment (arterial embolization), transfusion of blood products and / or surgery, as our gold standar to classify patients as "high risk". Results: A total of 218 patients were included, with a mean age of 56 ± 18 years, of which 121/218 (55%) were male. 156/218 required intervention for what were classified as "high risk" while 62/218 did not specify and classified as "low risk". A cut-off value of GBS ≤ 2 showed a sensitivity of 98% with a NPV of 100%. The utility of the GBS scale showed an area under the ROC curve 0.83 (95% CI 0.75-0.90). Conclusion: The GBS scale used in patients with non-variceal UGB attended in the emergency department has adequate diagnostic validity to predict the need for intervention.

Genetic polymorphisms associated with upper gastrointestinal bleeding: a systematic review protocol

Gastrointestinal bleedings (GIB) are one of the most frequent adverse drug reactions. Among the GIB upper gastrointestinal bleeding (UGIB) stands out due to their high mortality. The different idiosyncratic responses related to UGIB ​​in medication users may be due to the presence of genetic variants in the genes that encode enzymes that are targets of pharmacokinetic and pharmacodynamic activity of the metabolism of the drugs, such as cyclooxygenase 1, endothelial nitric oxide synthase, cytochrome P450, among others. Although a review has focused on assessment whether the presence of CYP2C9*2 and CYP2C9*3 could increase UGIB diagnosis, the search is outdated, and more evidence can be identified regarding both CYP polymorphisms and other genes potentially involved with UGIB. The objective of the systematic review is to explore case-control or case-case studies to assess the epidemiological association between genetic polymorphisms and UGIB. This review will consider genetic polymorphisms of case-control and case-case studies and their association with the UGIB, in the presence or absence of drugs exposure. Electronic searches will be performed in PubMed, Scopus and the Cochrane Library with no time limit. Two researchers will select registries and extract data on study and population characteristics, exposure, covariates, and outcomes. Critical appraisal will consider Joanna Briggs tool for case-control studies. Studies will, where possible, be pooled with statistical meta-analysis. Where statistical pooling is not possible the findings will be presented in narrative form including tables and figures to aid in data presentation, where appropriate.(AU)

Complicações em colonoscopia: experiência uni-institucional com 8968 pacientes / Colonoscopy complications: experience with 8968 consecutive patients in a single institution

RESUMO Objetivo: avaliar a incidência, características epidemiológicas, diagnóstico e evolução dos pacientes que retornaram às unidades de pronto atendimento (UPA) do Hospital Albert Einstein em São Paulo/SP com sinais e sintomas sugestivos de complicações até 30 dias após realização de colonoscopia. Métodos: estudo retrospectivo uni-institucional de pacientes submetidos à colonoscopia em 2014 e que retornaram, em até 30 dias após o procedimento, a uma UPA. Resultados: foram realizadas colonoscopias em 8968 pacientes, dos quais 95 (1,06%) tiveram queixa relacionada à possível complicação. A maioria dos procedimentos foi realizada eletivamente. Complicações menores (dor abdominal inespecífica/distensão) foram frequentes (0,49%) e a maioria dos pacientes recebeu alta após consulta na UPA. Complicações graves foram menos frequentes: perfuração (0,033%), hemorragia digestiva baixa (0,044%) e obstrução intestinal (0,044%). A procura à UPA em menos de 24 horas após o procedimento associou-se a maior índice de colonoscopias normais (P=0,006), mais diagnóstico de febre (P=0,0003) e síndrome dispéptica (P=0,043) e menos diagnóstico de colite/ileíte (P=0,015). A presença de febre em pacientes atendidos na UPA associou-se ao diagnóstico de pólipos na colonoscopia (P=0,030). Conclusão: os dados do presente estudo corroboram as evidências de segurança do exame de colonoscopia e apontam para redução nos índices de complicações mais graves deste exame.

ABSTRACT Objective: to evaluate the incidence, epidemiological characteristics, diagnosis and evolution of patients who returned to the emergency care units of the Albert Einstein Hospital in São Paulo/SP with signs and symptoms suggestive of colonoscopy complications up to 30 days after the procedure. Methods: we conducted a retrospective, uni-institutional study of patients submitted to colonoscopy in 2014 who returned to the Emergency department (ED) within 30 days after the procedure. Results: 8968 patients underwent colonoscopies, 95 (1.06%) of whom had complaints related to possible complications. Most of the procedures were elective ones. Minor complications (nonspecific abdominal pain/distension) were frequent (0.49%) and most of the patients were discharged after consultation at the ED. Severe complications were less frequent: perforation (0.033%), lower gastrointestinal bleeding (0.044%), and intestinal obstruction (0.044%). ED consultations in less than 24 hours after the procedure was associated with a higher index of normal colonoscopies (p=0.006), more diagnosis of fever (p=0.0003) and dyspeptic syndrome (p=0.043), and less diagnosis of colitis/ileitis (p=0.015). The observation of fever in patients treated at the ED was associated with the diagnosis of polyps at colonoscopy (p=0.030). Conclusion: the data corroborate the safety of the colonoscopy exam and points to a reduction in major complications rates.

Características clínicas y manejo de lactantes menores de 1 año con sospecha de alergia a proteína de leche de vaca / Clinical characteristics and management of infants less than 1-year-old suspected with allergy to cow's milk protein

Introducción: La alergia a proteína de leche de vaca (APLV) es frecuente en lactantes (2-5% en < 1 año). Tiene múltiples formas de presentación y un amplio diagnóstico diferencial, por lo que es relevante confirmar el diagnóstico. El estándar de oro del diagnóstico es el test de provocación oral (TPO), que en la práctica no siempre se realiza. En Chile hay escasa literatura respecto a esta entidad. Objetivo: Describir características demográficas, clínicas y manejo de lactantes < 1 año con sospecha de APLV. Pacientes y Método: Estudio retrospectivo en menores de 1 año atendidos por sospecha de APLV entre 2009-2011. Se registraron datos demográficos, historia perinatal, antecedentes de atopia, alimentación al momento del diagnóstico, síntomas de sospecha de APLV, estudios realizados para su confirmación, y respuesta a tratamiento. Se consideró como estándar de diagnóstico la respuesta a la dieta y la contraprueba. Se definió como respuesta a la dieta la ausencia de los síntomas atribuidos a la APLV al menos 4 semanas desde el cambio de leche. Se realizó estadística descriptiva mediante programa Epiinfo™. Resultados: Se incluyeron 106 lactantes, 51% varones, 80% recién nacidos de término, 74% con al menos un progenitor atópico, 34% con alguno de los padres o algún hermano con alergia alimentaria. La mediana de edad al inicio fue 1,5 meses (rango: 1,5-2 m). El 15% recibió fórmula desde el período neonatal y el 50% antes del tercer mes. Los síntomas más frecuentes fueron: vómitos (63%), cólicos (50%) y rectorragia (40%); el 61% presentó ≥ 2 síntomas al comienzo. Solo en el 34% se hizo TPO, en el resto se evaluó la respuesta a la dieta de exclusión y se realizaron exámenes. La realización de exámenes no cambió la conducta. Tratamiento: 43% lactancia materna con dieta de exclusión, 24% solo fórmula extensamente hidrolizada, 26% solo fórmula aminoacídica y 7% otros. Conclusión: Las características demográficas y antecedentes de los pacientes concuerdan con lo descrito en la literatura extranjera. El inicio clínico fue precoz, predominando los síntomas digestivos. Se realizaron exámenes en una proporción alta de pacientes, sin contribuir a un cambio de conducta; el TPO fue subutilizado como herramienta diagnóstica.

Introduction: Cow's milk protein allergy (CMPA) is highly prevalent in infants (2-5%). It has a wide clinical spectrum, and confirmation through an oral food challenge (OFC) is relevant for its differential diagnosis. Information on this topic is scarce in Chile. Objective: To describe the demographic and clinical features of infants with suspected CMPA. Patients and Method: A retrospective study of patients < 1 year-old, treated for suspected CMPA between 2009 and 2011. Demographic data, symptoms of atopy, nutrition at the time of diagnosis, CMPA symptoms, diagnostic studies, and response to treatment were recorded. Diet response at least 4 weeks after milk modification, and clinical behavior when suspected foods were added back to the diet were considered standard diagnostic criteria. Descriptive statistics were performed using Epiinfo ™ software. Results: The study included 106 infants, of whom, 51% male, 80% term newborns, 74% with ≥ 1 atopic parent, and 34% with ≥ 1 parent/sibling with food allergy. The median age at onset of symptoms was 1.5 months (range 1.5-2 m). Almost half (46%) were breast-feeding ≥ 6 m, with 15% receiving formula milk since the neonatal period, and 49% before the third month. Common symptoms were: vomiting (63%), colic (49%), and bleeding on passing stools (41%). No anaphylaxis was identified, and 61% had ≥ 2 symptoms at debut. Only 34% were subjected to OFC. The most frequently requested tests were, test patch (43%), prick test (40%), and blood in stools (37%). Treatment: 43% breast feeding with exclusion diet, 24% extensively hydrolysed formula, 26% amino acid formula, and 7% others. Conclusion: Demographic characteristics and risk factors were similar to those previously described in international literature. Clinical presentation was early in life, and digestive symptoms predominated. OFC was underused for diagnosis, and most of the tests requested did not change management.

Clinical Risk Factors for Upper Gastrointestinal Bleeding after Percutaneous Coronary Intervention: A Single-Center Study

BACKGROUND/AIMS: Percutaneous coronary intervention (PCI) is often performed therapeutically, and antithrombotic treatment is required for at least 12 months after stent implantation. However, the development of post-PCI upper gastrointestinal bleeding (UGIB) increases morbidity and mortality. We investigated the incidence and risk factors for UGIB in Korean patients within 1 year after PCI. METHODS: The medical records of 3,541 patients who had undergone PCI between January 2006 and June 2012 were retrospectively reviewed. We identified 40 cases of UGIB. We analyzed the incidence and clinical risk factors associated with UGIB occurring within 1 year after PCI by comparing the results for each case to matched controls. The propensity score matching method using age and sex was utilized. RESULTS: UGIB occurred in 40 patients (1.1%). Two independent risk factors for UGIB were a history of peptic ulcer disease (odds ratio [OR], 12.68; 95% confidence interval [CI], 2.70 to 59.66; p=0.001) and the use of anticoagulants (OR, 7.76; 95% CI, 2.10 to 28.66; p=0.002). CONCLUSIONS: UGIB after PCI occurred at a rate of 1.1% in the study population. Clinicians must remain vigilant for the possibility of UGIB after PCI and should consider performing timely endoscopy in patients who have undergone PCI and are suspected of having an UGIB.

LATE RESULTS OF ESOPHAGOGASTRIC DEVASCULARIZATION AND SPLENECTOMY ASSOCIATED WITH ENDOSCOPIC TREATMENT IN PATIENTS WITH SCHISTOSOMIASIS / RESULTADOS TARDIOS DA DESCONEXÃO ÁZIGO-PORTAL E ESPLENECTOMIA ASSOCIADOS AO TRATAMENTO ENDOSCÓPICO PÓS-OPERATÓRIO EM PACIENTES ESQUISTOSSOMÓTICOS

Background:Schistosomiasis is endemic problem in Brazil affecting about three to four million people, and digestive hemorrhage caused by esophageal varices rupture is the main complication of the disease. Surgical treatment has become a therapeutic option, especially for secondary prophylaxis after at least one episode of bleeding. The surgical technique used by the vast majority of surgeons for the prevention of rebleeding is esophagogastric devascularization and splenectomy. Although with good postoperative results, rebleeding rate is significant, showing the need to follow-up endoscopy in all patients.Aim:To evaluate long-term results of patients submitted to esophagogastric devascularization and splenectomy and postoperative endoscopic treatment regarding esophageal varices caliber and rebleeding rates.Methods:A retrospective study of 12 patients underwent esophagogastric devascularization and splenectomy followed for more than five years.Results: All patients showed varices size reduction, and no patient had postoperative bleeding recurrence.Conclusion:Esophagogastric devascularization and splenectomy decreased significantly the esophageal variceal size when associated with endoscopic follow-up, being effective for bleeding recurrence prophylaxis.

Racional:A esquistossomose acomete três a quatro milhões de pessoas no Brasil, sendo a hemorragia digestiva por ruptura das varizes esofágicas a principal complicação da doença. O tratamento cirúrgico é empregado como profilaxia secundária em pacientes com história de hemorragia prévia. A cirurgia mais utilizada é a desconexão ázigo-portal mais esplenectomia, técnica com bons resultados, porém com índice de recidiva hemorrágica considerável, fazendo necessário o seguimento endoscópico destes pacientes.Objetivo:Analisar a evolução tardia dos pacientes no que se refere à recidiva hemorrágica e ao comportamento das varizes esofágicas quando submetidos à desconexão ázigo-portal mais esplenectomia e tratamento endoscópico pós-operatório.Método:Foram avaliados retrospectivamente 12 pacientes submetidos à desconexão ázigo-portal mais esplenectomia com acompanhamento endoscópico pós-operatório maior de cinco anos.Resultados:Todos tiveram redução significativa do calibre das varizes e nenhum paciente apresentou sangramento pós-operatório.Conclusão:A desconexão ázigo-portal mais esplenectomia diminuiu significativamente o calibre das varizes esofágicas quando associada ao tratamento endoscópico pós-operatório. Este tratamento foi efetivo para a profilaxia da recidiva hemorrágica.

Cobertura de la estrategia preventiva de cáncer gástrico en Chile: resultados de la Encuesta Nacional de Salud 2009-2010 / Coverage of diagnostic upper gastrointestinal endoscopy for the prevention of gastric cancer in Chile: results from the 2009-2010 National Health Survey

Background: In Chile, gastric cancer (GC) is a major cause of cancer related deaths. The current screening strategy consists of an upper gastrointestinal endoscopy (UGE) for people aged 40 years or more with epigastric pain. Aim: To evaluate the diagnostic coverage of the use of UGE for early detection of GC in Chile. Material and Methods: As part of the digestive module of the 2009-10 National Health Survey, 5293 adults over 15 years were asked about the presence of epigastric pain, possible upper gastrointestinal bleeding (PUGB), use of proton pump inhibitors (PPIs) or histamine H2-receptor antagonists (H2RAs), family history of GC and having performed an UGE. Results: Persistent epigastric pain was observed in 3.4% of the population. PUGB signs were observed in 3.3% of the population. The prevalence of PPIs and H2RAs use was 4.3% and 2.2% respectively, reaching 21.6% in people aged 70 years and older. Life span prevalence of UGE was 18.3%, with differences by region, health insurance and educational level. UGE coverage in people aged 40 years or older with and without persistent epigastric pain was 14.4% and 3.2% respectively (Odds ratio 4.8, p < 0.01). The prevalence of UGE was similar among people with or without PUGB or family history of CG. Conclusions: The estimated coverage of the current GC prevention strategy in Chile is 14.4%, evaluated at a population level. Further studies are required to determine the impact of this strategy on early GC diagnosis and mortality.

Uso del ácido tranexámico como variante terapéutica en pacientes con sangrado digestivo alto no variceal / Use of tranexamic acid as a therapeutic variant in patients having high digestive blooding not from varix

Introducción: el sangrado digestivo alto no variceal es una de las primeras causas de ingreso hospitalario en el país, en los últimos años se convirtió en un grave y sensible problema de salud. Objetivo: caracterizar el comportamiento de las variables demográficas, clínicas y terapéuticas en los pacientes ingresados por esta enfermedad en el servicio de urgencia de Cirugía General del Hospital Universitario General Calixto García desde junio del 2012 a diciembre 2013. Métodos: se realizó un estudio observacional, analítico, prospectivo y de vigilancia poscomercialización para demostrar la efectividad del uso del ácido tranexámico como variante terapéutica precoz para detener el sangrado y evitar el resangrado en los pacientes con sangrado digestivo alto no variceal. Resultados: de un total de 104 pacientes, predominó el sexo masculino y los mayores de 70 años con 61,5 por ciento y 37,5 por ciento, respectivamente. Consumían café en exceso 94 por ciento, más del 50 por ciento, alcohol, 37 por ciento tomaba medicamentos antiinflamatorios no esteroideos. Del total de pacientes, 61,5 por ciento y el 55,8 por ciento padecían de hipertensión arterial y de gastritis crónica, respectivamente. La melena fue la forma de presentación clínica más frecuente de esta enfermedad; la endoscopia de urgencia se le realizó solo al 25 por ciento de los casos y predominó como diagnóstico la pangastritis eritematosa en el 51,1 por ciento de los pacientes. El tratamiento quirúrgico fue excepcional solo en el 2,9 por ciento de los pacientes del estudio, la estadía hospitalaria fue en el 84 por ciento de los enfermos menor de 3 días y la mortalidad general muy baja de un 1,9 por ciento. Conclusiones: los efectos del uso del ácido tranexámico en los pacientes con sangrado digestivo alto no variceal fueron beneficiosos para el tratamiento de esta enfermedad, las evidencias de sangrado activo luego de la aplicación del medicamento se redujeron de forma relevante, el tratamiento quirúrgico fue excepcional y la mortalidad muy baja(AU)

Introduction: Non-variceal upper gastrointestinal bleeding is one of the first causes of hospitalization in our country and it has become a serious and sensitive health problem in the last few years. Objective: To characterize the behaviour of the demographic, clinical and therapeutic variables found in patients admitted to the emergency general surgery service of General Calixto Garcia university hospital due to this disease from June 2012 to December 2013. Methods: Observational, analytical, prospective and postmarket surveillance study to prove the effectiveness of the tranexamic acid as an early therapeutic variant to stop bleeding and avoid re-bleeding in those patients with non-variceal upper gastrointestinal bleeding. Results: In the study group of 104 patients, males and over 70 years-old people predominated for 61.5 percent and 37.5 percent, respectively. The coffee overconsumption was seen in 94 percent, more than 50 percent took alcohol and 37 percent had non-steroidal antinflammatory drugs treatment. Of the total number of patients, 61.5 percent and 55.8 percent suffered blood hypertension and chronic gastritis, respectively. Melena was the most frequent presentation of this disease; urgent endoscopoy was performed in just 25 percent of casos and the predominant diagnosis was erythematous pangastritis in 51.1 percent of patients. The surgical treatment was used in just 2.5 percent of the study patients, the lenght of stay at hospital was less than 3 days in 84 percent and very low overall mortality rate of 1.9 percent. Conclusions: The effects of the tranexamic acido n patients with non-variceal upper gastrointestinal bleeding were benefitial for treating the disease; evidence of active bleeding after the use of drug significantly decrease, surgical treatment was an exception and mortality rate was very low(AU)

Utilidad de la escala clínica de Rockall en la hemorragia digestiva alta no varicosa / Usefulness of Rockall clinical score in upper non variceal gastrointestinal bleeding

Introducción: la escala clínica de Rockall se utliza para clasificar la hemorragia digestiva alta en individuos atendiendo al riesgo de presentar sangrado activo, que necesiten de la realización urgente de la endoscopia digestiva. Objetivo: evaluar, la eficacia de la escala clínica de Rockall para identificar a los pacientes que requieren terapéutica endoscópica. Métodos: se realizó un estudio prospectivo. Se calculó el índice clínico de Rockall según escala homónima. Se realizó endoscopia de urgencia y terapéutica hemostática a pacientes con sangrado activo o reciente. La eficacia de este proceder se determinó mediante el análisis por curva de escala clínica de Rockall, índice de Youden y cálculo de sensibilidad y especificidad del mejor punto de corte. Resultados: incluidos 118 pacientes, 22 de los cuales (18,6 por ciento) recibieron terapéutica endoscópica por presentar sangrado activo o reciente. Índice clínico de Rockall con una media de 1,79 puntos. Riesgo alto 83 pacientes (70,3 por ciento) y bajo 35 casos (29,7 por ciento). La capacidad predictiva excelente, con valor del área bajo la curva = 0,960 (IC 95 por ciento: 0,904-1,017); punto de corte igual a 1 ( índice de Youden = 0,971) con una sensibilidad de 97 por ciento y de especificidad de 71 por ciento. Conclusiones: la escala clínica de Rockall puede ser utilizada con seguridad para la toma de decisiones en relación con la realización urgente de la endoscopia en el paciente con hemorragia digestiva alta no varicosa(AU)

Introduction: the clinical Rockall score serves to stratify the individuals with non variceal upper gastrointestinal hemorrhage depending on the risk of presenting active bleeding and therefore, they urgently need digestive endoscopy. Objective: to evaluate the effectiveness of the Rockwall clinical score in identifying patients who need therapeutic endoscopy. Methods: a prospective study with calculation of the Rockall clinical score according to a homonymous scale. Performance of urgent endoscopy and of therapeutic hemostatic endoscopy in patients with active or recent bleeding. Determination of efficacy through the analysis of ROC curves, Youden´s index and calculation of sensibility and specificity of the best cutoff point. Results: one hundred and eighteen patients were included, 22 of whom (18.6 percent) received therapeutic endoscopy to manage active or recent bleeding. Rocwall clinical score reached a mean of 1.79 points. It was found that 83 (70.3 percent) were high and 35 (29.7 percent) low risk patients. The predictive capacity was excellent, being the ABC= 0.960 (95 percent CI: 0,904-1,017). The cutoff point was 1 (J= 0.971) with 97 percent sensibility and 71 percent specificity. Conclusions: the Rockall clinical score can be safely used to make a decision on the urgent performance of endoscopy in patients with non-variceal upper gastrointestinal bleeding(AU)

Child-Pugh Score Is an Independent Risk Factor for Immediate Bleeding after Colonoscopic Polypectomy in Liver Cirrhosis

PURPOSE: Post-polypectomy bleeding is the most common colonoscopic polypectomy complication. However, the risk of post-polypectomy bleeding in liver cirrhosis is unknown. We aimed to evaluate the risk of post-polypectomy bleeding in patients with liver cirrhosis. MATERIALS AND METHODS: We included 89 patients with liver cirrhosis who received colonoscopic polypectomy between January 2006 and October 2012. Three hundred forty-eight subjects without liver disease who underwent colonoscopic polypectomy comprised the control group. Risks of post-polypectomy bleeding were analyzed according to patient- and polyp-related factors. RESULTS: Among 89 patients, 75 (84.3%) were Child-Pugh class A, 10 (11.2%) were class B, and 4 (4.5%) were class C. Incidence of immediate post-polypectomy bleeding was significantly increased in cirrhosis with Child-Pugh class B or C compared to liver cirrhosis with Child-Pugh class A or control group [hazard ratio (HR) 3.5; p<0.001]. Polyp size (HR 3.6; p=0.032) and pedunculated polyps (HR 2.4; p=0.022) were also significant risk factors for immediate post-polypectomy bleeding in multivariate analysis. CONCLUSION: Cirrhotic patients with Child-Pugh class B or C have a high risk of immediate post-polypectomy bleeding. Thus, endoscopists should be cautious about performing colonoscopic polypectomy in patients with Child-Pugh class B or C.

Frecuencia y mortalidad de resangrado en pacientes cirróticos tratados por hemorragia de várices esofágicas en dos hospitales de Lima-Perú durante los años 2009-2011 / Frequency and mortality by rebleeding in cirrhotic patients treated for bleeding esophagic varices in two hospitals in Lima Peru during years 2009 to 2011

Durante las primeras 6 semanas después de una hemorragia variceal hay un 30-40% de probabilidad de recurrencia y de aquellos que resangran mueren del 20-35%. Pasado este periodo, el riesgo de resangrado se presenta en un 60% de pacientes alcanzando una mortalidad de 60-70% en dos años sin tratamiento. Objetivo: Describir la frecuencia de resangrado y mortalidad por resangrado en pacientes cirróticos tratados por hemorragia variceal en los Centros Endoscópicos del Hospital Nacional Cayetano Heredia (HNCH) y del Hospital Nacional Arzobispo Loayza (HNAL) , ambos en Lima, Perú, durante los años 2009-2011. Materiales y Métodos: El estudio es transversal de periodo y retrospectivo donde participaron en total 176 pacientes cirróticos mayores de 14 años de edad que hayan sangrado por varices esofágicas y que hayan recibido tratamiento endoscópico por hemorragia variceal. Los instrumentos fueron la ficha de datos donde se consignó la información obtenida de las historias clínicas de cada paciente, la escala de CHILD para medir la severidad de la enfermedad hepática, informes endoscópicos y llamadas telefónicas. Resultados: En total se halló una tasa de frecuencia de 32,20% (56 pacientes) con resangrado temprano menor de 6 semanas. Asimismo, se obtuvo un 22,56% (37 pacientes) con resangrado tardío en los controles posteriores. Se halló una mortalidad de 5,70% (10 pacientes) en el total de los pacientes. Y una tasa de mortalidad por resangrado de 13,33% (6 pacientes). Conclusión: La hemorragia variceal es una causa importante de morbimortalidad en la población peruana, la frecuencia y mortalidad por resangrado resultaron ligeramente menores a la reportada en la bibliografía mundial.

During the first 6 weeks after a variceal hemorrhage there is a 30-40% of probability of recurrence and those who rebleed 20-30% die. Passed this period, the risk of rebleeding is of 60% and reaches a mortality of 60-70% in two years without treatment. Objective: Describe the frequency of rebleeding and mortality due to rebleeding in cirrhotic patients treated for variceal hemorrhage at Endoscopic Centers of Hospital Nacional Cayetano Heredia, Lima, Peru and Hospital Nacional Arzobispo Loayza, Lima, Peru during the years 2009-2011. Materials and methods: The study type is a transversal, periodic and retrospective one in which were included 176 cirrhotic patients older than 14 years who have bleed for esophageal varices and that have received endoscopic therapy. The instruments used were a data sheet with all the information obtained from the clinical chart of each patient, the CHILD score to assess severity of hepatic disease, endoscopic informs and phone calls. Results: The frequency of rebleeding before 6 weeks was 32.20% (56 patients). Also, the frequency of rebleeding after that time was 22.56% (37 patients). There was a mortality rate of 5.70% (10 patients) and a mortality rate due to rebleeding of 13.33% (6 patients). Conclusions: Variceal hemorrhage is an important cause of mobimortality in peruvian people. The frequency of rebleeding and mortality due to rebleeding resulted slightly lower than in other countries.

Características clínicas y epidemiológicas de la hemorragia digestiva alta en el Hospital Militar Central en el periodo Enero 2010-Diciembre 2011 / Clinical and epidemiological characteristics of upper gastrointestinal bleeding in the Central Military Hospital in the period January 2010-December 2011

Objetivos: Determinar las características clínicas y epidemiológicas de los pacientes con hemorragia digestiva alta en el Hospital Militar Central en el periodo comprendido de Enero del 2010 a Diciembre del 2011. Material y métodos: La muestra estuvo constituida por 145 pacientes con diagnóstico de hemorragia digestiva alta que recibieron tratamiento en el Servicio de Emergencia del Hospital Militar Central durante el periodo que corresponde al estudio. Los datos obtenidos durante la investigación, por medio de la ficha de recolección de datos, elaborada para los fines de la investigación se ordenaron y procesaron. Resultados: la media de la edad fue de 72.6+/-16.6 años siendo la mínima edad de 20 y la máxima de 95 años. El 80 por ciento de los pacientes fueron del sexo masculino, y el 20 por ciento del sexo femenino. El 78 por ciento de los pacientes fueron empleados, el 13.1 por ciento fueron amas de casa y el antecedente de importancia más frecuente fue la hipertensión arterial. La manifestación clínica de más frecuencia fue la melena (57.9 por ciento), seguido de melena y hematemesis (31 por ciento). En cuanto al grado de severidad encontramos una mayor frecuencia de anemia moderada en el 51.7 por ciento de los casos. En relación al estado hemodinámico hubo una mayor frecuencia de pacientes estables en el 89 por ciento. El 69.7 por ciento de los casos requirieron transfusiones sanguíneas. El tipo de tratamiento definitivo de mayor frecuencia fue el tratamiento médico en el 97.2 por ciento de los casos. No hubo ningún caso de mortalidad. La localización de mayor frecuencia de la hemorragia digestiva fue el estomago en el 67.6 por ciento de los casos. El diagnóstico etiológico por endoscopia de mayor frecuencia fue la úlcera péptica gástrica (37.9 por ciento), seguido de lesiones aguda de la mucosa gástrica (29 por ciento). En cuanto a la clasificación endoscópica según Forrest se encontró una mayor frecuencia de III en el 38.6 por ciento de los casos...

Cirrhotic patients; incidence, of UGI bleeding factors and esophageal varices

To determine the frequency of upper GI bleeding and its predicting factors and esophageal varices in the patients with liver cirrhosis disease admitted at medicine ward of Isra university hospital. Prospective and observational study. Isra university hospital. March 2012 to August 2012 [six months]. Containing 100 patients, mean age was 45.8, and all the patients with cirrhosis disease were included in this study with liver cirrhosis disease. All patients were under went endoscopy and Frequency of upper GI bleeding and varices presentation and classification according to grade were noted. All the 100 patients were selected on the basis of presenting liver cirrhosis disease. Male were more found than the female with the mean age 45.8. Mostly cirrhotic patients were found with HCV positive and upper GI bleeding were noted in [40%] of the cases. With the endoscopic finding mostly patients were noted in II - III grad of esophageal varices and according to child pug classification majority of patients was noted in class "C" In addition, thrombocytopenia and red wale markings along with the presence of large sized varices were associated with the presence of esophageal varices. In the conclusion of this study we found majority of the cirrhotic patients with HCV, Esophageal varices and thrombocytopenia are the important factors of upper GI bleeding. Knowledge and etiology of this manuscript may helpful in the prevention of oesophageal varices and upper GI bleeding

Hemorragia digestiva alta en el Servicio de Gastroenterología del Instituto Nacional de Salud del Niño de Enero del 2005 a Diciembre del 2010 / Upper gastrointestinal bleeding in the Gastroenterology Service at the National Institute of Child Health from January 2005 to December 2010

En el Instituto Nacional de Salud del Niño se registraron 229 episodios de hemorragia digestiva, de los cuales se incluyeron 118 episodios de hemorragia digestiva alta (HDA) desde enero del 2005 a diciembre del 2010. Se realizó un estudio descriptivo retrospectivo. El objetivo general fue describir las El mayor número de casos se presentó en varones (51.7 por ciento). El 91.5 por ciento características epidemiológicas, etiológica, clínica y de manejo así como antecedentes patológicos de la hemorragia digestiva alta en la población pediátrica atendida en el Instituto Nacional de Salud del Niño durante el periodo de Enero del 2005 a Diciembre del 2010. La prevalencia hospitalaria fue de 1.8 por 1000 atenciones/año. Se hospitalizó por emergencia, el servicio donde fueron hospitalizados con mayor frecuencia fue en gastroenterología (67.8 por ciento). Los signos más frecuentes de presentación fueron la hematemesis y la melena. Los antecedentes patológicos más frecuentes fueron los de patología hepática, respiratoria y los gastrointestinales. El método de diagnóstico principal fue la endoscopía en el 100 por ciento de los casos. Las tres causas más frecuentes de HDA fueron várices esofágicas secundaria a hipertensión portal pre hepática en el 28 por ciento, seguido de la gastritis por medicamentos en el 26.3 por ciento y la gastritis erosiva en el 6,8 por ciento de los casos. En el 96.6 por ciento se usó tratamiento médico y solo en el 3.4 por ciento requirió manejo quirúrgico. En el 100 por ciento (118) se reportó mejoría de la HDA. En conclusión se puede decir que la HDA es una enfermedad poco frecuente y se recomienda realizar un estudio prospectivo controlado para determinar con precisión algunas variables epidemiológicas y clínicas, que ayudarían al mejor conocimiento de esta patología gastrointestinal.