Sponge Cytology “Reasonably Profitable” at Guiding Meals Reintroduction in EoE

Sponge Cytology “Reasonably Profitable” at Guiding Meals Reintroduction in EoE

The info recommend the noninvasive process was profitable in guiding meals reintroduction, however missed some meals triggers in sure sufferers.

A brand new report suggests using a noninvasive esophageal sponge machine will be profitable in guiding dietary remedy amongst sufferers with eosinophilic esophagitis (EoE).

Nevertheless, the authors added there was some variance between their sponge outcomes and biopsy findings, suggesting a necessity for additional examine. The report was printed Scientific Gastroenterology & Hepatology.

For some sufferers EoE, a meals antigen-mediated continual inflammatory illness, pharmacologic remedy is used to manage the illness. Nevertheless, the authors mentioned most sufferers (about 70%) will reply to a meals elimination eating regimen often called the Six Meals Elimination Food regimen (SFED). The eating regimen requires the elimination of frequent allergy-associated meals like dairy, wheat, soy, and eggs. If signs enhance, sufferers then re-introduce the meals individually to see which meals set off symptom return.

The issue, the authors mentioned, is that monitoring EoE exercise sometimes requires a number of endoscopies, which is each invasive and dear. Thus, the investigators sought to judge a brand new software, an esophageal sponge-on-a-string machine (Cytosponge) that can be utilized in an outpatient setting with out sedation. Earlier analysis has prompt the tactic can obtain larger than 80% accuracy in assessing EoE histologic exercise in contrast with endoscopy and biopsy, the authors mentioned.

To judge the tactic as a software for direct diet-elimination remedy, the investigators recruited 22 sufferers who responded to the SFED. The sufferers underwent meals reintroduction adopted by esophageal sponge cytology. Meals have been categorised as “triggers” if sponge cytology revealed an eosinophil rely larger than 15 eosinophil cells per high-powered discipline (eos/hpf). Sufferers have been additionally assessed utilizing the EoE symptom exercise index (EEsAI), endoscopic reference scores (EREFS), and biopsy histology previous to dietary remedy, after dietary remedy, and 4 weeks following meals reintroduction, to see whether or not the outcomes matched the expectations primarily based on sponge-directed remedy.

The investigators discovered that each the EEsAI scores and the endoscopic scores have been related on the postdietary remedy timepoint and following meals reintroduction. Nevertheless, biopsy histology confirmed peak eosinophil counts have been increased submit meals reintroduction in contrast with submit dietary remedy: 20.0 (vary, 5.0-51.5) vs 2.0 (vary, 1.0-4.0; P < .001). The authors mentioned this means some meals triggers have been missed. On the identical time, they mentioned peak eosinophil rely was nonetheless decrease submit meals reintroduction vs earlier than dietary remedy was began, suggesting a profit.

“On the submit meals reintroduction analysis, sponge cytology and biopsy histology have been in settlement in 59% of instances, utilizing a lower off of < 15 eos/hpf, and 68% of instances, utilizing a lower off of < 6 eos/hpf, they wrote.

The authors mentioned the sponge methodology led to a major discount in mucosal eosinophil counts in all sufferers and recognized meals antigen triggers in most sufferers.

“Sadly, on an individual-patient degree, the correlation of Cytosponge eosinophil rely and different measures of EoE exercise, together with biopsy histology, weren’t constant,” they mentioned.

Nonetheless, sufferers most popular the sponge-directed methodology, which the investigators mentioned value simply 15% of what it prices to make use of endoscopy to information meals reintroduction.

“The sponge examine is performed with out sedation throughout a routine 30-minute workplace go to with out the necessity for a driver or lacking work or college,” they wrote. “There can also be security advantages to the sponge, as sufferers should not subjected to the small however quantifiable dangers of sedated higher endoscopy.”

The authors mentioned of their follow, they use the Cytosponge when sufferers have well-controlled signs and a lumen diameter of larger than 13 mm. They mentioned the brand new method is perhaps a robust promoting level to induce sufferers to make use of dietary elimination remedy.

“Our information additionally recommend that just like biopsy histology, ranges of esophageal eosinophilia measured with the Cytosponge are unlikely to be a solitary finish level however complementary to different measures of EoE exercise corresponding to EREFS and symptom scoring methods,” they concluded.


Alexander JA, Ravi Ok, Symrk TC, et al. Use of the esophageal sponge in directing meals reintroduction in eosinophilic esophagitis. Clin Gastroenterol Hepatol. Printed on-line June 10, 2022. doi:10.1016/j.cgh.2022.05.029

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