Probability of sequelae following Campylobacter spp. infections: Update of systematic reviews and meta‐analyses

Abstract

IntroductionReactive arthritis (REA) and Guillain–Barré syndrome (GBS) are postinfectious complications of Campylobacter enteritis (CE); associations with inflammatory bowel diseases and irritable bowel syndrome (IBS) are also discussed. The objective of this study was to summarize existing evidence on the probability of sequelae following confirmed CE.MethodsAll studies included in previous reviews and meta‐analyses on this topic were retrieved and assessed for eligibility; a systematic literature search was conducted to collect more recent reports. For each sequela, random effects meta‐analyses were performed; the risk of bias and the quality of evidence were evaluated.ResultsIn total, 50 reports of observational studies were included; between 110,765 and 175,839 CE cases were considered for each sequela. The pooled proportion of CE cases that developed a sequela was 1.72% (95% CI 0.81–3.61; prediction interval [PI]: 0.03–47.65) for REA, 0.07% (0.03–0.16; PI: 0.003–1.59) for GBS, 0.22% (0.06–0.73; PI: 0.002–20.69) for Crohn's disease (CD), 0.35% (0.11–1.15; PI: 0.003–28.16) for ulcerative colitis (UC), and 4.48% (1.92–10.08; PI: 0.09–70.62) for IBS. The high between‐study heterogeneity could partially be explained by study size and design, the method of assessing sequelae, and the period between CE and sequelae onset. The quality of evidence was rated as moderate for GBS and UC, and low for REA, CD, and IBS.ConclusionUpdated estimates of the probability to develop sequelae after CE are provided, for CD and UC for the first time. However, uncertainty regarding the true probabilities remains, which is reflected in the broad PIs.

Molecular Responses of the Eukaryotic Cell Line INT407 on the Internalized Campylobacter jejuni—The Other Side of the Coin

“…A medically important issue of C. jejuni infection is the development of certain late onset complications [29][30][31]. The most relevant of these are reactive arthritis (REA), Guillain-Barré syndrome (GBS), Miller Fisher syndrome (MFS), inflammatory bowel diseases, irritable bowel syndrome (IBS), and some forms of tumors [32,33]. Although we have some information concerning the involvement of certain serogroups and genotypes in these conditions [34,35], we do not have information about molecular changes preceding the formation of these sequelae.…”