Predictive factors of small bowel patency in Crohn's disease patients

Patency Capsule and Cross-Sectional Imaging for Predicting Capsule Endoscopy Retention: A Systematic Review and Meta-Analysis

AIMS

Small bowel capsule endoscopy, which has been widely used to evaluate small bowel disease, has a risk of capsule retention (CR). The present systematic review and meta-analysis evaluated the accuracy of patency capsule (PC) and cross-sectional imaging (CSI) for predicting CR.

METHODS

Databases, including MEDLINE/PubMed, EMBASE, Web of Science and the Cochrane library, were searched for articles through August 15, 2023, that investigated the diagnostic accuracy of PC or CSI for predicting CR. Pooled sensitivity and specificity were calculated using a bivariate random-effects model. The false-negative rates of PC and CSI were separately analyzed and compared using a single-proportion meta-analysis based on random-effects modeling.

RESULTS

Twenty-three articles (covering 3273 patients) including 17 assessing PC (involving 3051 patients), 4 assessing CSI (involving 140 patients), and 2 assessing both PC and CSI (involving 82 patients) were identified. CSI had a pooled sensitivity and specificity for predicting CR of 54% (95% confidence interval [CI], 21-84%) and 88% (95% CI, 67-97%), respectively, whereas PC had a pooled sensitivity and specificity for predicting CR of 75% (95% CI, 43-92%) and 94% (95% CI, 90-96%), respectively. PC showed a significantly higher specificity (P = 0.05) and lower pooled false-negative rate than CSI (2.7% [95% CI, 1.3-5.4%] vs. 12.8% [95% CI, 6.1-25.0%]; P = 0.001).

CONCLUSIONS

PC showed demonstrated comparable sensitivity, significantly higher specificity, and significantly lower false-negative rate than CSI. PC may be a more reliable modality for predicting CR than CSI.

Predictive value of patency capsule and magnetic resonance enterography for capsule endoscopy retention in patients with established Crohn's disease

INTRODUCTION

retention is the most common adverse event of the small bowel capsule endoscopy procedure. Patency capsule (Medtronic, Dublin, Ireland) and magnetic resonance enterography are two diagnostic methods that can prevent small bowel capsule endoscopy retention. The aim of this study was to evaluate the predictive value of these two diagnostic methods.

MATERIAL AND METHODS

a prospective, comparative and observational study was performed in patients with established Crohn's disease. All patients had undergone magnetic resonance enterography and patency capsule procedures. If the patency capsule was not retained, the patient underwent a small bowel capsule endoscopy; otherwise, double balloon enteroscopy was performed to locate the stenosis. Magnetic resonance enterography predictive criteria for retention were analyzed in all cases. Sensitivity, specificity, positive predictive value and negative predictive value of the patency capsule and magnetic resonance enterography compared to small bowel capsule endoscopy or double balloon enteroscopy were calculated.

RESULTS

forty patients were included (24 female, 55 ± 13 years old). Retention criteria with capsule endoscopy or double balloon enteroscopy were found in six patients, agreeing in five cases with patency capsule and in three cases with magnetic resonance enterography. Sensitivity, specificity, positive predictive value, negative predictive value and Kappa coefficient for predicting retention with the patency capsule were 83 %, 100 %, 100 % and 97 %, respectively, and 50 %, 91 %, 50 % and 91 %, respectively, with magnetic resonance enterography.

CONCLUSIONS

patency capsule has a higher sensitivity and positive predictive value than magnetic resonance enterography for preventing small bowel capsule endoscopy retention in Crohn's disease patients.

Role of capsule endoscopy in inflammatory bowel disease: Anything new?

Capsule endoscopy (CE) is a recently developed diagnostic method for diseases of the small bowel that is non-invasive, safe, and highly tolerable. Its role in patients with inflammatory bowel disease has been widely validated in suspected and established Crohn’s disease (CD) due to its ability to assess superficial lesions not detected by cross-sectional imaging and proximal lesions of the small bowel not evaluable by ileocolonoscopy. Because CE is a highly sensitive but less specific technique, differential diagnoses that can simulate CD must be considered, and its interpretation should be supported by other clinical and laboratory indicators. The use of validated scoring systems to characterize and estimate lesion severity (Lewis score, Capsule Endoscopy Crohn’s Disease Activity Index), as well as the standardization of the language used to define the lesions (Delphi Consensus), have reduced the interobserver variability in CE reading observed in clinical practice, allowing for the optimization of diagnoses and clinical management strategies. The appearance of the panenteric CE, the incorporation of artificial intelligence, magnetically-guided capsules, and tissue biopsies are elements that contribute to CE being a promising, unique diagnostic tool in digestive tract diseases.

A Validated Prognostic Model and Nomogram to Predict Early-Onset Complications Leading to Surgery in Patients With Crohn's Disease

BACKGROUND

Predicting aggressive Crohn's disease is crucial for determining therapeutic strategies.

OBJECTIVE

We aimed to develop a prognostic model to predict complications leading to surgery within 1 year after diagnosis of Crohn's disease and to create a nomogram to facilitate clinical decision making.

DESIGN

This is a retrospective study.

SETTING

This study was conducted from January 2012 to December 2016 in a single tertiary IBD center.

PATIENTS

Patients diagnosed with Crohn's disease showing B1 behavior according to the Montreal classification were included.

MAIN OUTCOME MEASURES

We measured the occurrence of complications that would ultimately lead to surgery, including severe GI bleeding (Glasgow-Blatchford score ≥6), stenosis, and perforations, confirmed by endoscopy, CT scan, and/or interventional radiology.

RESULTS

The mean follow-up period was 54 months (SD 13 months). Of the 614 eligible patients, 13.5% developed complications leading to surgery. Multivariable logistic regression revealed the independent predictors of early-onset complications to be age (adjusted odds ratio per 10-year increase in age = 0.4; 95% CI, 0.2-0.8; p = 0.004), disease duration (adjusted odds ratio = 2.7, 95% CI, 1.9-3.8; p < 0.001), perianal disease (adjusted odds ratio = 16.0; 95% CI, 4.3-59.9; p < 0.001), previous surgery (adjusted odds ratio = 3.7; 95% CI, 1.6-8.6; p = 0.003), and extraintestinal manifestations (adjusted odds ratio = 7.6; 95% CI, 2.3-24.9; p = 0.001). The specificity and sensitivity of the prognostic model were 88.3% (95% CI, 84.8%-91.2%) and 96.6% (95% CI, 88.1%-99.6%), and the area under the curve was 0.97 (95% CI, 0.95-0.98). This model was validated with good discrimination and excellent calibration using the Hosmer-Lemeshow goodness-of-fit test. A nomogram was created to facilitate clinical bedside practice.

LIMITATIONS

This was a retrospective design and included a small sample size from 1 center.

CONCLUSIONS

Our validated prognostic model effectively predicted early-onset complications leading to surgery and screened aggressive Crohn's disease, which will enable physicians to customize therapeutic strategies and monitor disease. See Video Abstract at http://links.lww.com/DCR/B442.Registered at Chinese Clinical Trial Registry (ChiCTR1900025751).

UN MODELO DE PRONSTICO VALIDADO Y UN NOMOGRAMA PARA PREDECIR COMPLICACIONES PRECOCES QUE REQUIRAN CIRUGA EN PACIENTES CON ENFERMEDAD DE CROHN

ANTECEDENTES:Predecir una enfermedad de Crohn muy agresiva es fundamental para determinar la estrategia terapéutica.OBJETIVO:Desarrollar un modelo de pronóstico para predecir las complicaciones que requieran cirugía dentro el primer año al diagnóstico de enfermedad de Crohn y crear un nomograma para facilitar la toma de decisiones clínicas.DISEÑO:El presente etudio es retrospectivo.AJUSTE:Estudio realizado entre Enero 2012 y Diciembre 2016, en un único centro terciario de tratamiento de enfermedad inflamatoria intestinal.PACIENTES:Se incluyeron todos aquellos pacientes diagnosticados de enfermedad de Crohn que mostraban manifestaciones tipo B1 según la clasificación de Montreal.PRINCIPALES MEDIDAS DE RESULTADO:Medimos la aparición de complicaciones que finalmente conducirían a una cirugía, incluida la hemorragia digestiva grave (puntuación de Glasgow-Blatchford ≥ 6), estenosis y perforaciones, confirmadas por endoscopía, tomografía computarizada y / o radiología intervencionista.RESULTADOS:El período medio de seguimiento fue de 54 meses (desviación estándar 13 meses). De los 614 pacientes elegibles, el 13,5% desarrolló complicaciones que llevaron a cirugía. La regresión logística multivariable reveló que los predictores independientes de complicaciones de inicio temprano eran la edad (razón de probabilidades ajustada [ORa] por aumento de 10 años en la edad = 0,4; intervalos de confianza del 95% [IC del 95%]: 0,2-0,8, p = 0,004), duración de la enfermedad (ORa = 2,7, IC del 95%: 1,9-3,8, p <0,001), enfermedad perianal (ORa = 16,0, IC del 95%: 4,3-59,9, p <0,001), cirugía previa (ORa = 3,7, 95% IC: 1,6-8,6, p = 0,003) y manifestaciones extraintestinales (ORa = 7,6, IC del 95%: 2,3-24,9, p = 0,001). La especificidad y sensibilidad del modelo pronóstico fueron 88,3% (IC 95%: 84,8% -91,2%) y 96,6% (IC 95%: 88,1% -99,6%), respectivamente, y el área bajo la curva fue 0,97 (95% % CI: 0,95-0,98). Este modelo fue validado con buena discriminación y excelente calibración utilizando la prueba de bondad de ajuste de Hosmer-Lemeshow. Se creó un nomograma para facilitar la práctica clínica al pié de la cama.LIMITACIONES:Diseño retrospectivo que incluyó un tamaño de muestra pequeña en un solo centro.CONCLUSIONES:Nuestro modelo de pronóstico validado predijo eficazmente las complicaciones precoces que conllevaron a cirugía y la detección de enfermedad de Crohn agresiva, lo que permitió a los médicos personalizar las estrategias terapéuticas y controlar la enfermedad. Consulte Video Resumen en http://links.lww.com/DCR/B442.Registrado en el Registro de Ensayos Clínicos de China (ChiCTR1900025751).

Inflammatory bowel disease position statement of the Italian Society of Colorectal Surgery (SICCR): Crohn's disease

The Italian Society of Colorectal Surgery (SICCR) promoted the project reported here, which consists of a position statement of Italian colorectal surgeons to address the surgical aspects of Crohn's disease management. Members of the society were invited to express their opinions on several items proposed by the writing committee, based on evidence available in the literature. The results are presented, focusing on relevant points. The present paper is not an alternative to available guidelines; rather, it offers a snapshot of the attitudes of SICCR surgeons about the surgical treatment of Crohn's disease. The committee was able to identify some points of major disagreement and suggested strategies to improve quality of available data and acceptance of guidelines.

Use of patency capsule in daily practice

We read with great interest the paper by Albuquerque et al. entitled "Predictive factors of small bowel patency in Crohn's disease patients". Despite being a safe procedure, capsule endoscopy (CE) retention is a complication that should be kept in mind, especially in Crohn's disease (CD) patients. However, the risk of CE retention can be minimized using the patency capsule (PC). Although some clinical trials confirm its effectiveness, its use in daily practice has been poorly investigated. Albuquerque et al. report a PC negative predictive value (NPV) of 100% in this setting.

Evaluation of Small-Bowel Patency in Crohn's Disease: Prospective Study with a Patency Capsule and Computed Tomography

Background and Purpose

Patency capsule (PC) examination is usually performed - previously to capsule endoscopy - to evaluate small-bowel patency in patients with established Crohn's disease (CD). The reported PC retention rate is significantly higher than expected. Our aims were to assess small-bowel patency, to determine the precise location of the retained PC in patients with CD, and to determine the false positive rate of evaluation with a radiofrequency identification tag (RFIT) scanner.

Methods

This is a prospective single-center study including CD patients with clinical indication for small-bowel capsule endoscopy. PillCam® PC examination was performed on all patients to assess small-bowel patency. On all patients with a positive identification of the PC using an RFIT scanner, 30 h after ingestion, an abdominal CT was performed in order to identify its precise location.

Results

Fifty-four patients were included. The PC retention rate, according to evaluation with the RFIT scanner, was 20% (in 11 patients) 30 h after ingestion. These patients were then submitted to abdominal CT, which revealed that there was small-bowel retention in 5 cases (9%). Higher CRP levels, penetrating disease, and a history of abdominal surgery were associated with an increased risk of PC retention (p = 0.007, p = 0.011, and p = 0.033, respectively). On multivariate analysis, there was an independent association between small-bowel PC retention and CRP levels >5 mg/dL (OR = 15.5; p = 0.03).

Discussion

The small-bowel PC retention rate (9%) was considerably lower than those found in previous reports. Our results show that, with this protocol, the false-positive cases of RFIT scans or plain abdominal X-rays may be avoided. This may contribute to more extensive application of capsule endoscopy without the risk of small-bowel retention.

Symptomatic retention of the patency capsule: a multicenter real life case series

BACKGROUND AND AIMS

The patency capsule is designed to evaluate the patency of the small bowel before administration of small-bowel capsule endoscopy (SBCE) in patients at high risk of retention. The utilization of a patency capsule may be associated with a risk of symptomatic retention, but very few cases have been reported to date. The aim of our study was to describe our experience with this rare complication of a patency capsule.

METHODS

This was a multicenter retrospective case series. The medical records of patients who underwent a patency capsule test were scanned and all cases of symptomatic retention were collected.

RESULTS

In total, 20 symptomatic cases of retention out of 1615 (1.2 %) patency capsule tests were identified; in one patient, the patency capsule was retained in the esophagus, in the rest, the capsule was detected in the small bowel resulting in abdominal pain or small-bowel obstruction. One patient (5 %) required surgery; all other patients resolved spontaneously or after corticosteroid therapy.

CONCLUSIONS

Symptomatic patency capsule retention is a very rare complication with a favorable prognosis. It should be recognized but its use in patients with suspected small-bowel stenosis should not be discouraged.