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INTRODUCTION: Bile acid sequestrants (BAS) are an option for microscopic colitis (MC) refractory or intolerant to budesonide. There are inconsistent data on the prevalence of bile acid malabsorption (BAM) and utility of bile acid testing in MC. The aim of this systematic review and meta-analysis was to evaluate these outcomes. METHODS: A systematic search of randomized control trials and observational studies of adults with MC treated with BAS was conducted using MEDLINE, Embase, Cochrane, and Scopus from inception to January 22, 2024. Data were extracted on (i) prevalence of BAM, (ii) clinical response and adverse events, and (iii) recurrence after BAS discontinuation. Data were pooled using random-effects models to determine weighted pooled estimates and 95% confidence intervals (CIs). RESULTS: We included 23 studies (1 randomized control trial, 22 observational), with 1,011 patients with MC assessed for BAM and 771 treated with BAS. The pooled prevalence of BAM was 34% (95% CI 0.26-0.42, I2 = 81%). The pooled response rate with BAS induction for all patients with MC, irrespective of BAM, was 62% (95% CI 0.55-0.70, I2 = 71%). There was a higher pooled response rate in patients with BAM compared with those without BAM ( P < 0.0001). The pooled rate of BAS-related adverse effects was 9% (95% CI 0.05-0.14, I2 = 58%). DISCUSSION: One-third of patients with MC had BAM, and almost two-thirds of all patients responded to BAS with limited side effects. Patients with MC and BAM were more likely to respond to therapy, supporting the value of bile acid testing.
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BACKGROUND: Since the COVID-19 pandemic in 2020, virtual interviews have become a norm for gastroenterology (GI) fellowship recruitment. Most interviews hold a session for applicant and current fellow interaction. There is wide variability of the sessions across programs. There are a paucity of data on the influence of these sessions on applicants' ranking of programs. AIMS: We aim to describe applicants' experiences and perceptions of virtual happy hours (i.e., applicant-fellow sessions) during the GI fellowship application process. METHODS: We surveyed applicants participating in the 2022 GI fellowship match cycle to understand their experience with virtual fellow-only happy hours. Mixed methods analyses were performed. RESULTS: The survey was completed by 68 (13.91%) applicants, of which, 75% reported that at least half of the interviews they attended had conducted a virtual, fellow-only happy hour. Most respondents preferred that the virtual happy hours should be conducted prior to the interview day (58%) and that breakout rooms with a smaller ratio of applicants to fellows are helpful (78%). The majority (87%) of respondents reported attending these sessions at least 75% of the time. Nearly half (44%) of respondents reported that these sessions influenced/altered their ranking decisions with respect to programs. CONCLUSION: Given the advantages associated with virtual interviews and their ongoing support by professional societies, the virtual platform is likely here to stay in future. Virtual fellow-only happy hours help provide a representation of the program's mission and when successfully implemented, can be leveraged to optimize recruitment and attract qualified, diverse candidates.
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COVID-19 , Gastroenterologia , Internato e Residência , Humanos , Bolsas de Estudo , PandemiasRESUMO
BACKGROUND & AIMS: Bile acid sequestrants (BAS) may be a treatment in microscopic colitis (MC), but efficacy data are limited. We evaluated the effectiveness of BAS in MC and assessed the utility of bile acid testing to predict response. METHODS: Adults with MC treated with BAS (2010-2020) at Mayo Clinic were identified. Bile acid malabsorption was defined by elevated serum 7âº-hydroxy-4-cholesten-3-one or by fecal testing using previously validated cutoffs. Response was defined at 12 ± 4 weeks after BAS initiation as: complete (resolution of diarrhea), partial (≥50% improvement in diarrhea), nonresponse (<50% improvement), and intolerance (discontinuation due to side effects). Logistic regression was used to identify predictors of response to BAS. RESULTS: We identified 282 patients (median age, 59 years [range, 20-87 years]; 88.3% women) with median follow-up of 4.5 years (range, 0.4-9.1 years). Patients were treated with the following BAS: 64.9% cholestyramine, 21.6% colesevelam, and 13.5% colestipol. Clinical outcomes were: 49.3% complete response, 16.3% partial response, 24.8% nonresponse, and 9.6% intolerance. There were no differences in outcomes between those on BAS alone or BAS combined with other medications (P = .98). The dose of BAS was not associated with response (P = .51). Bile acid testing was done in 31.9% of patients, and 56.7% were positive. No predictors of response to BAS were identified. After BAS discontinuation, 41.6% had recurrence at a median of 21 weeks (range, 1-172 weeks). CONCLUSION: In one of the largest cohorts evaluating BAS treatment in MC, nearly two-thirds had a partial or complete response. Additional research is needed to determine the role of BAS and bile acid malabsorption in MC.
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Ácidos e Sais Biliares , Colite Microscópica , Adulto , Humanos , Feminino , Pessoa de Meia-Idade , Masculino , Resina de Colestiramina/uso terapêutico , Diarreia/tratamento farmacológico , Colite Microscópica/diagnóstico , Colite Microscópica/tratamento farmacológico , Colestipol/uso terapêuticoRESUMO
BACKGROUND & AIMS: Epidemiologic studies from Europe and North America have reported an increasing incidence of microscopic colitis (MC) in the late 20th century, followed by a plateau. This population-based study assessed recent incidence trends and the overall prevalence of MC over the past decade. METHODS: Residents of Olmsted County, MN, diagnosed with collagenous colitis (CC) or lymphocytic colitis (LC) between January 1, 2011, and December 31, 2019 were identified using the Rochester Epidemiology Project. Clinical variables were abstracted by chart review. Incidence rates were age- and sex-adjusted to the 2010 US population. Associations between incidence and age, sex, and calendar periods were evaluated using Poisson regression analyses. RESULTS: A total of 268 incident cases of MC were identified with a median age at diagnosis of 64 years (range, 19-90 y); 207 (77%) were women. The age- and sex-adjusted incidence of MC was 25.8 (95% CI, 22.7-28.9) cases per 100,000 person-years. The incidence of LC was 15.8 (95% CI, 13.4-18.2) and CC was 9.9 (95% CI, 8.1-11.9) per 100,000 person-years. A higher MC incidence was associated with increasing age and female sex (P < .01). There was no significant trend in age- and sex-adjusted incidence rate over the study period (P = .92). On December 31, 2019, the prevalence of MC, LC, and CC (including cases diagnosed before 2011) was 246.2, 146.1, and 100.1 per 100,000 persons, respectively. CONCLUSIONS: The incidence of MC and its subtypes was stable between 2011 and 2019, but its prevalence was higher than in previous periods. The incidence of MC continues to be associated with increasing age and female sex.
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Colite Colagenosa , Colite Linfocítica , Colite Microscópica , Colite Colagenosa/epidemiologia , Colite Linfocítica/epidemiologia , Colite Microscópica/epidemiologia , Feminino , Humanos , Incidência , Masculino , Minnesota/epidemiologiaRESUMO
Microscopic colitis (MC) is a common cause of chronic watery diarrhea, with the highest incidence in women over age 50.1 Cross-sectional studies have suggested that patients with MC have a lower incidence of adenomatous colon polyps compared with those without MC.2-4 The existing literature is limited by cross-sectional design, small sample sizes, lack of longitudinal follow-up, and the use of average-risk patients, rather than those with chronic diarrhea, as controls. We aimed to explore the association between MC and colon adenomas.
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Adenoma , Colite Microscópica , Adenoma/complicações , Adenoma/epidemiologia , Colite Microscópica/complicações , Colite Microscópica/epidemiologia , Colo , Estudos Transversais , Diarreia/epidemiologia , Diarreia/etiologia , Feminino , Humanos , Pessoa de Meia-Idade , Estudos RetrospectivosRESUMO
INTRODUCTION: Outcomes and safety of budesonide maintenance therapy in microscopic colitis (MC) are not well known. METHODS: Adult residents of Olmsted County, Minnesota, diagnosed with MC (2002-2019) and treated with budesonide were identified using the Rochester Epidemiology Project. Response was assessed at 12 ± 4 weeks after initiation of therapy and defined as complete (resolution of diarrhea), partial (≥50% improvement in the number of bowel movements), nonresponse (<50% improvement), and intolerance (discontinued because of side effects). For safety outcomes, cases (budesonide maintenance) and MC controls (no budesonide therapy) were matched by sex and age at diagnosis (±2 years). RESULTS: A total of 450 patients were identified, of whom 162 (36.0%) were treated with budesonide for induction of clinical remission (median age 67 [23-91] years and 126 women [77.8%] ). Clinical outcomes for induction were as follows: 130 (80.2%) complete response, 22 (13.6%) partial response, 8 (4.9%) no response, and 2 (1.2%) intolerance. After induction, 96 (63.2%) had recurrence after discontinuation, of whom 27 (28.1%) required further budesonide induction treatment without maintenance, 56 (58.3%) required long-term budesonide maintenance, and 13 (13.5%) were treated with other therapies. Of those receiving budesonide maintenance, all responded (55 [98.2%] complete and 1 [1.8%] partial). No patient stopped maintenance from adverse events. The median duration of follow-up was 5.6 years (0.3-18.9). There was no significant difference between cases and controls in the incidence of osteopenia/osteoporosis, diabetes mellitus, hypertension, glaucoma, or cataracts. DISCUSSION: The long-term use of budesonide in MC seems to be effective and generally well tolerated with limited adverse effects.
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Doenças Ósseas Metabólicas , Colite Microscópica , Osteoporose , Adulto , Idoso , Budesonida/efeitos adversos , Colite Microscópica/tratamento farmacológico , Colite Microscópica/epidemiologia , Feminino , Humanos , Indução de RemissãoRESUMO
BACKGROUND: Restorative proctocolectomy with IPAA is the procedure of choice when colectomy is needed for medically refractory ulcerative colitis. Pouchitis is one of the most common complications among patients who have undergone IPAA and represents a spectrum of disease varying in both phenotype and clinical course. OBJECTIVE: This study aimed to assist clinicians and surgeons in the treatment of both acute and chronic pouchitis, including newer therapies and future directions. DIAGNOSIS AND MANAGEMENT: Diagnosis is made by endoscopy of the pouch with biopsy because other conditions may produce similar symptoms such as increased stool frequency, abdominal cramps, and urgency. Pouchitis is classified by duration (acute versus chronic), disease pattern (infrequent, relapsing, and continuous), and response to antibiotics (responsive, dependent, and refractory). The Pouchitis Disease Activity Index may be used to measure disease activity. The management of pouchitis is guided by the disease phenotype. Acute episodes are treated with an initial 2-week course of antibiotics (typically ciprofloxacin or metronidazole), although patients with relapsing or chronic pouchitis may require long-term antibiotic treatment or the cycling of different antibiotics. Certain probiotics may also be used for maintenance therapy in those with chronic symptoms. For patients with chronic antibiotic refractory pouchitis, oral budesonide, immunosuppressive agents (azathioprine), or biologic therapy (infliximab, adalimumab, vedolizumab, and ustekinumab) may be required for both induction and maintenance with close monitoring for potential side effects. In rare cases, diverting ileostomy or pouch excision may be required. CONCLUSION: Pouchitis represents a spectrum of disease phenotypes, ranging from acute antibiotic responsive pouchitis to chronic antibiotic refractory pouchitis. The management of pouchitis is primarily directed by the disease phenotype.
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Colite Ulcerativa , Pouchite , Proctocolectomia Restauradora , Humanos , Pouchite/diagnóstico , Pouchite/etiologia , Pouchite/terapia , Proctocolectomia Restauradora/efeitos adversos , Colite Ulcerativa/complicações , Adalimumab/uso terapêutico , Antibacterianos/uso terapêuticoRESUMO
OBJECTIVES: Patients with microscopic colitis may have subtle macroscopic findings on colonoscopy such as erythema, edema, or altered vascular pattern; however, radiographic abnormalities on cross-sectional imaging have not been investigated. We aimed at identifying the abdominopelvic radiographic abnormalities in patients with microscopic colitis, as well as possible correlation with endoscopic findings and the need for extended duration of treatment. MATERIALS AND METHODS: This was a retrospective study of patients with biopsy-proven microscopic colitis at two tertiary centers between 1 January 2010 and 30 April 2020. Patients underwent computed tomography scan or magnetic resonance imaging within 30 days of a diagnostic flexible sigmoidoscopy or colonoscopy. Patients with colon ischemia and other causes of colitis were excluded. Radiographic abnormalities from imaging reports included bowel wall thickening, mucosal hyperenhancement and mesenteric fat stranding. Univariate and multivariable logistic regression models were used to identify predictors of radiographic abnormalities. RESULTS: 498 patients with microscopic colitis underwent abdominopelvic cross-sectional imaging within 30 days of flexible sigmoidoscopy/colonoscopy. Lymphocytic colitis was diagnosed in 54.6% of patients, and collagenous colitis in 45.4%. Endoscopic and radiographic abnormalities were identified in 16.1% and 12.4% of patients, respectively. Radiographic abnormalities were associated with the need for budesonide therapy (p = .029) and budesonide therapy long-term (p = .0028). Budesonide therapy long-term (p = .047) was associated with radiographic abnormalities in multivariate analysis. CONCLUSIONS: Radiographic abnormalities may be present on abdominopelvic cross-sectional imaging in a minority of patients with biopsy-proven microscopic colitis, suggesting cross-sectional imaging has low clinical value in the evaluation and treatment of this disease.
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Colite Colagenosa , Colite Linfocítica , Colite Microscópica , Biópsia , Colite Colagenosa/patologia , Colite Linfocítica/patologia , Colite Microscópica/diagnóstico , Colo/patologia , Colonoscopia/métodos , Humanos , Estudos Retrospectivos , SigmoidoscopiaRESUMO
BACKGROUND: Microscopic colitis (MC) primarily affects older adults; thus, data in younger patients are scarce. AIMS: To compare clinical characteristics and treatment response by age at diagnosis. METHODS: This retrospective cohort study was performed at Mayo Clinic and Massachusetts General Hospital. Patients were chosen consecutively using established databases. Patients were 'younger' if age at diagnosis was ≤ 50 years and 'older' if age > 50 years. Treatment outcomes were captured for induction (12 ± 4 weeks), based on the total number of daily stools, and defined as remission (complete resolution), response (≥ 50% improvement), non-response (< 50% improvement), and intolerance. Patients were considered 'responders' if they had remission or response and 'non-responders' if they had non-response or intolerance. RESULTS: We included 295 patients (52 younger, 243 older). There were no differences in sex, race, MC subtype, and diarrhea severity between groups (all P > 0.05). Younger patients were more likely to have celiac disease (17.3% vs. 5.8%, P = 0.01), while older patients had higher BMI (mean 25.0 vs. 23.8 kg/m2, P = 0.04) were more likely smokers (53.9% vs. 34.6%, P = 0.01) and use NSAIDs (48.6% vs. 15.4%, P < 0.01) and statins (22.6% vs. 3.8%, P < 0.01). Overall treatment response was highest for budesonide (88.3%) and did not differ when comparing older to younger patients (90.6% vs. 77.8%, P = 0.12) or by MC subtype (LC, 81.5% vs. CC, 92.9%, P = 0.07). CONCLUSIONS: There are no significant differences in MC treatment response based on age or disease subtype. These findings support treating patients with MC based on symptom severity rather than age.
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Colite Colagenosa , Colite Linfocítica , Colite Microscópica , Fatores Etários , Idoso , Budesonida/uso terapêutico , Colite Colagenosa/diagnóstico , Colite Colagenosa/tratamento farmacológico , Colite Linfocítica/diagnóstico , Colite Linfocítica/tratamento farmacológico , Colite Microscópica/diagnóstico , Colite Microscópica/tratamento farmacológico , Humanos , Pessoa de Meia-Idade , Estudos RetrospectivosAssuntos
Adenocarcinoma , Transtornos de Deglutição , Dermatomiosite , Neoplasias Esofágicas , Adenocarcinoma/complicações , Adenocarcinoma/diagnóstico , Transtornos de Deglutição/etiologia , Dermatomiosite/complicações , Dermatomiosite/diagnóstico , Neoplasias Esofágicas/complicações , Neoplasias Esofágicas/diagnóstico , HumanosRESUMO
Sclerosing mesenteritis (SM), an idiopathic nonneoplastic condition affecting 0.18% to 3.14% of the population, is characterized by chronic fat necrosis, inflammation, and fibrosis most commonly of the mesentery of the small intestine. Sclerosing mesenteritis typically presents in the fifth or sixth decade of life, where patients with a history of abdominal surgery and/or autoimmune disease may be at higher risk. While many patients are asymptomatic, clinical features and complications are related to the mass effect resulting from the inflammation and fibrosis involved in the pathogenesis of SM. When present, common signs, symptoms, and complications include abdominal pain, weight loss, diarrhea, palpable abdominal mass on examination, bowel obstruction, chylous ascites, and mesenteric vessel thrombosis. Although SM was historically diagnosed predominantly by biopsy, current practice has shifted away from this to computed tomography imaging of the abdomen, given the invasive nature of biopsy. However, certain conditions, including mesenteric neoplasia (lymphoma, metastatic carcinoid tumor, desmoid tumor, mesenteric carcinomatosis), can mimic SM on imaging, and if clinical suspicion is equivocal, a biopsy may be warranted for definitive diagnosis. Asymptomatic patients do not require treatment. For patients with pronounced symptoms or complicated SM, the combination of tamoxifen 10 mg twice daily and prednisone 40 mg daily is the first-line pharmacotherapy; no randomized controlled trial of this regimen has been performed. Rarely, surgery may be necessary in cases of persistent bowel obstruction refractory to medical management. Sclerosing mesenteritis has an overall benign course in most cases, but disease progression and fatal outcomes have been reported.
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Paniculite Peritoneal , Humanos , Paniculite Peritoneal/diagnóstico , Paniculite Peritoneal/terapia , Diagnóstico DiferencialRESUMO
Teamwork in graduate medical education (GME) is often hindered in clinical learning environments where discontinuity among residents, supervisors, and other health care professionals is typical. Teaming is a conceptual approach to teamwork in dynamic environments with constantly changing team members and goals. Teaming is built on principles of project management and team leadership, which together provide an attractive strategy for addressing teamwork challenges in GME. Indeed, teaming is now a requirement of the Accreditation Council for Graduate Medical Education Clinical Learning Environment Review program. However, many clinician-educators and leaders may be unfamiliar with teaming and how to integrate it into their GME programs. In this article, the teaming framework is described with a specific example of how it can be applied to improve hospital ward rounds, a common setting of teamwork breakdown. The goal of this article is to educate and encourage GME leaders as they learn new ways to implement teaming to improve patient care and education in their programs.
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Disorders of gut-brain interaction, previously known as functional gastrointestinal disorders (eg, functional dyspepsia and irritable bowel syndrome), are commonly encountered in both the primary care and gastroenterology clinics. These disorders are often associated with high morbidity and poor patient quality of life and often lead to increased health care use. The management of these disorders can be challenging, as patients often present after having undergone an extensive workup without a definite etiology. In this review, we provide a practical five-step approach to the clinical assessment and management of disorders of gut-brain interaction. The five-step approach includes (1) excluding organic etiologies of the patient's symptoms and using Rome IV criteria for diagnosis, (2) empathizing with the patient to develop trust and a therapeutic relationship, (3) educating the patient about the pathophysiology of these gastrointestinal disorders, (4) expectation setting with a focus on improving function and quality of life, and (5) establishing a treatment plan with central and peripherally acting medications and nonpharmacological modalities. We discuss the pathophysiology of disorders of gut-brain interaction (eg, visceral hypersensitivity), initial assessment and risk stratification, as well as treatment for a variety of diseases with a focus on irritable bowel syndrome and functional dyspepsia.
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Dispepsia , Síndrome do Intestino Irritável , Humanos , Qualidade de Vida , Encéfalo , Instituições de Assistência AmbulatorialRESUMO
BACKGROUND: Microscopic colitis (MC) is a common cause of chronic diarrhea. Randomized controlled trials (RCTs) have demonstrated the efficacy of budesonide treatment for MC. However, relapse is frequent after discontinuation of budesonide, and data on maintenance therapy are limited. We performed a systematic review and meta-analysis evaluating these outcomes in clinical trials and real-world settings. METHODS: A systematic search was performed on October 31, 2022, of Medline, Embase, Cochrane, and Scopus. Case series, case-control, cohort studies, and RCTs of adults with MC were included. Data were pooled using random effects models to calculate weighted pooled estimates and 95% confidence intervals. Heterogeneity was assessed using the I2 statistic. RESULTS: We included 35 studies (11 RCTs, 24 observational studies) with 1657 MC patients treated with budesonide induction and 146 for maintenance. The overall pooled clinical remission rate with budesonide treatment was similar between RCTs and observational studies. The pooled remission rate with budesonide maintenance therapy was 84% (95% CI, 0.60-1.00; I2 = 91%). After budesonide discontinuation, the pooled relapse rate was 53% (95% CI, 0.42-0.63; I2â =â 76%). On maintenance therapy, no differences were noted in adverse events (eg, metabolic bone disease, hypertension, hyperglycemia, cataracts/glaucoma) in those on budesonide vs placebo or other noncorticosteroid medications for MC (P = .9). CONCLUSIONS: Budesonide is an effective maintenance treatment for MC. There is a high risk of recurrence after budesonide discontinuation, but long-term use at the lowest effective dose appears to be relatively safe and have limited adverse effects.
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Background: Microscopic colitis (MC) causes chronic diarrhea. It has two histologic subtypes: lymphocytic colitis (LC) and collagenous colitis (CC). Little is known about the natural progression of disease with time and with treatment. Objectives: We aimed to assess histological changes over time. Design: We designed a retrospective study including adults diagnosed with MC from January 1992 to January 2020 at Mayo Clinic. Methods: Pathology reports were reviewed until 31 October 2020. Histological assessments at least 8 weeks apart were considered as adequate follow-up. Histological change from one subtype to the other and resolution were tracked with univariate and multivariable Cox proportional hazards models. Results: Overall, 416 patients with a median age at diagnosis of 63.9 years with >1 histopathological assessment were identified. Histology at initial diagnosis was CC in 218 (52.4%) patients and LC in 198 (47.6%). No medications were associated with a histological change. However, histological resolution was more likely with the use of aspirin [hazard ratio (HR): 2.10, 95% confidence interval (CI): 1.34-3.31, p = 0.001) and proton-pump inhibitors (PPIs; HR: 2.01, 95% CI: 1.34-3.02, p = 0.001). Histological resolution was more likely with budesonide treatment (HR: 1.86, 95% CI: 1.16-3.00, p = 0.010) and less likely with mesalamine (HR: 0.40, 95% CI: 0.19-0.83, p = 0.014), compared to medications such as prednisone, loperamide, and bismuth. Patients with CC were less likely to change their histology compared to patients with LC (HR: 0.24, 95% CI: 0.14-0.42, p < 0.001). There was no difference in histological resolution between the two subtypes (HR: 0.70, 95% CI: 0.47-1.05, p = 0.084). Conclusion: Patients with LC have a higher chance of changing their histology as compared to CC. However, histological resolution was associated with the use of PPIs and aspirin, and treatment with budesonide.
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BACKGROUND: Predictive models for eosinophilic oesophagitis (EoE) may not fully rule in the diagnosis. AIM: To develop a reverse model that predicts against EoE to eliminate the need for oesophageal biopsies. METHODS: In this two-centre study, a predictive model was developed (Mayo Clinic) and validated (University of North Carolina [UNC]). Cross-sectional data from consecutive adult patients without prior EoE who underwent upper enoscopy with oesophageal biopsies were used. EoE cases had ≥15 eosinophils/high-power field while controls had no eosinophils. Data were collected on patient clinical and endoscopic features. Multiple variable logistic regression was used to identify predictors of non-EoE status while maintaining specificity ≥95%. A secondary model was developed to predict against the need for endoscopy in patients suspected of having EoE without alarm symptoms. RESULTS: The Mayo and UNC cohorts consisted of 345 (EoE = 94, non-EoE = 251) and 297 patients (EoE = 84, non-EoE = 213), respectively. A primary model based on clinical and endoscopic features predicted against EoE with c-statistic 0.92 (95% CI: 0.88-0.96), specificity 95%, and sensitivity 65%. This model was validated (UNC) with c-statistic 0.87 (95% CI: 0.82-0.92). A simplified scoring system was created and a threshold of ≥12 points excluded EoE with 95% specificity and 50% sensitivity. A secondary model based on clinical characteristics alone predicted against EoE with c-statistic 0.86 (95% CI: 0.82-0.90), specificity 95% and sensitivity 39% and validated (UNC) with c-statistic 0.78 (95% CI: 0.71-0.85). CONCLUSION: A simplified scoring system accurately identified a group of patients with a low likelihood of EoE where unnecessary oesophageal biopsies can be avoided, potentially resulting in resource and cost savings.
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Esofagite Eosinofílica , Adulto , Humanos , Esofagite Eosinofílica/diagnóstico , Esofagite Eosinofílica/patologia , Estudos Transversais , BiópsiaRESUMO
Nausea and vomiting (N/V) are common presenting complaints in the outpatient and inpatient settings. These symptoms can be associated with high morbidity and poor quality of life, particularly in those with chronic symptoms. The clinical approach to N/V can be challenging, given the numerous possible underlying causes as well as the vast array of diagnostic and therapeutic options. In this concise review, we provide a practical 5-step approach to the clinical evaluation and treatment of N/V, suitable for application in the primary care and subspecialty settings. The 5-step approach includes (1) defining what the patient means by N/V, (2) determining whether symptoms are acute or chronic, (3) considering medication or toxin adverse effects, (4) using the patient's presentation, severity of symptoms, and physical examination findings to formulate a differential diagnosis and to guide evaluation, and (5) directing treatment on the basis of knowledge of neurotransmitters and receptors involved in the emetic pathways. We discuss the pathophysiology (neuronal pathways and neurotransmitters), differential diagnosis (medication and toxin adverse effects, neurologic causes, gastrointestinal diseases, metabolic and endocrine conditions, and psychogenic disorders), initial evaluation and risk stratification, and management and treatment options. Management of symptoms that are acute in onset or mild in severity may involve an empirical trial of antiemetics without extensive testing. In contrast, when symptoms are chronic or moderate-severe, testing for an underlying cause should be performed, and medication adverse effects, neurologic causes, gastrointestinal diseases, metabolic or endocrine conditions, and psychogenic disorders should be considered in particular.