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Vol. 44. Issue 2.
Pages 132-133 (February 2021)
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Vol. 44. Issue 2.
Pages 132-133 (February 2021)
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Eosinophilic esophagoduodenitis with unusual response to omeprazole in a teenager
Esofagoduodenitis eosinofílica con respuesta inusual al omeprazol en un adolescente
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Elisa Gómez Torrijosa,
Corresponding author
egomezt.cr@gmail.com

Corresponding author.
, Alejandro Raúl Gratacós Gómezb, Alba Mª Extremera Ortegaa, Oscar Gonzalez Jimeneza, Juana Bautista Joyanes Romoa, Rosa Garcia Rodrigueza
a Allergy Section, Hospital General Universitario, Ciudad Real, Spain
b Facultad de Medicina, Universidad de Castilla La Mancha, Ciudad Real, Spain
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Dear Editor:

Eosinophilic gastroenteritis (EGE) represents one variety within the spectrum of diseases referred to as eosinophilic gastrointestinal disorders (EGIDs), which includes eosinophilic esophagitis (EoE), gastritis, enteritis and colitis.1

The EGE (beyond EoE) is a rare gastrointestinal disease, even more rarely happens to appear EoE along with ED in the same patient.

Twelve-year-old male patient, with a personal history of rhinoconjunctivitis and bronchial asthma due to allergy to grass and fungal allergens and subclinical sensitization to legumes since the age of 8. Gastroesophageal reflux disease (GERD) diagnosed by pH-metry at 10 years of age. The patient refered persistent abdominal pain, intermittent diarrhoea and symptoms of esophageal dysfunction – such as heartburn, vomiting, choking –, even though the therapy with omeprazole, 20mg OD.

Esophagogastroduodenoscopy (EGDC)1 with multiple biopsies/organs/sections oesophagus (3: upper, medium and lower), stomach (2: antrum and body), duodenum2 was performed. Oesophagus with linear grooves and the appearance of some oesophageal rings were reported. The histological samples happened to contain 27 eosinophils/high power field (eos/hpf) in the duodenum with normal intestinal villi, 55eos/hpf in the oesophagus, but no presence of eosinophils in the stomach was confirmed. After, the omeprazole dosage was increased to 40mg BD for 2 months. Then the mentioned diagnostic procedure EGDC 2 was repeated, and no eosinophils were found in the samples of the biopsy of the duodenum, stomach or oesophagus (Table 1).

The patient continued with omeprazole (40mg OD) and two years later. We repeated the EGDC 3 without evidence of eosinophilic infiltration in the 3 organs (Table 1). Helicobacter pylori was not detected in the in none of the three organs explored in the three EGDCs performed. We excluded other possible causes of tissue eosinophilia with thoracoabdominal ultrasound, performed 30 days before the EGDC1: normal; blood autoantibody levels and 3 stool cultures (intestinal parasitosis): negatives. Allergy study: Sensitization to pollen (grass and olive-tree) and legumes. The patient was diagnosed with eosinophilic esophagoduodenitis (EED), that responded omeprazole (very unusual response)

EGIDs was described by Kaijer in 1937.2 These disorders characterized by gastrointestinal (GI) symptoms with eosinophilic inflammation (EI), most commonly in the GI mucosa but sometimes also of the muscular or serous layer. Other causes of these findings need to be ruled out. Symptoms may vary depending on both the location of EI (organ) and its extension (invasion of the bowel wall layers).1 In addition to symptoms compatible with EoE, our patient had intermittent diarrhoea, suggesting EoE with EI of the intestinal mucosal layer. EI was confirmed in both organs with oesophageal and duodenal biopsies.

EGE is a rare disease, with poorly defined diagnostic criteria and treatment, therefore often responds poorly to therapy and there is no commonly accepted long-term treatment.3 Except for EoE, consensus diagnostic criteria for the remaining EGIDs are lacking.4 There is also no consensus in the number of eos/hpf for the pathological diagnosis of EGE: some authors set the cut-off point at 20eos/hpf in the stomach and duodenum2 while others set it at 25eos/hpf.5

According to the 2007 consensus GERD had to be ruled out in order to diagnose EoE, but since the 2011 consensus there was no need to do so, since GERD can be associated with EoE, and both diseases are not mutually exclusive. Our patient had both EoE and GERD, what possibly contributed to the delay in the diagnosis of EoE. Since he was an atopic male with the symptoms persisted despite treatment of Omeprazole 20mg OD, we considered the possibility that he had concomitant EoE,1 and so it was.

In the EoE, neither the long-term treatment nor best maintenance doses for pharmacological therapies have been defined.1 We agree with experts and the guidelines, which recommend an approach where the dose is progressively decreased to lowest dose that keeps the disease in remission; which in our patient were 40mg OD.

There is controversy about the long-term efficacy of PPIs in children. A recent study has first shown that most children remain in clinical and pathological remission at one-year follow up on low maintenance dose; no data for >1 year of follow up are available yet; in our patient, sustained remission of EE for at least 2 years has been achieved with Omeprazole 40mg OD. The systemic anti-inflammatory effect of Omeprazole could induce the remission of EI in the duodenum.

“In conclusion, we present the first case of eosinophilic esophagoduodenitis that responds to 40mg of omeprazole and stays in remission with this dose for at least 2 years.

Conflict of interest

The authors declare that they have no conflict of interest.

References
[1]
E. Koutri, A. Papadopoulou.
Eosinophilic gastrointestinal diseases in childhood.
Ann Nutr Metab, 73 (2018), pp. 18-28
[2]
K.-K. Abassa, X.-Y. Lin, J.-Y. Xuan, H.-X. Zhou, Guo. Y.-W..
Diagnosis of eosinophilic gastroenteritis is easily missed.
World J Gastroenterol, 23 (2017), pp. 3556-3564
[3]
A. Cianferoni, J.M. Spergel.
Eosinophilic esophagitis and gastroenteritis.
Curr Allery Asthma, 15 (2015), pp. 58
[4]
M. Eghan, G.T. Furuta.
Eosinophilic gastrointestinal diseases beyond eosinophilic esophagitis.
Ann Allergy Asthma Immunol, 121 (2018), pp. 162-167
[5]
K. Ashitani, Y. Tsuzuki, M. Yamaoka, H. Ohgo, I. Takaya, T. Kusano, et al.
Endoscopic features and diagnostic procedures of eosinophilic gastroenteritis.
Copyright © 2020. Elsevier España, S.L.U.. All rights reserved
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