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Vol. 44. Issue 9.
Pages 614-619 (November 2021)
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Vol. 44. Issue 9.
Pages 614-619 (November 2021)
Original article
High prevalence of SARS-CoV-2 infection in patients scheduled for digestive endoscopy after the peak of the first wave of the pandemic
Alta prevalencia de infección por SARS-CoV-2 en pacientes programados para endoscopia digestiva después del pico de la primera onda pandémica
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Javier Pamplonaa, Rubén Solanob,
Corresponding author
rsolanosilveira@gmail.com

Corresponding author.
, Manel Ramírezc, Rosa Durandeza, Fatimetu Mohameda, Laura Pardoa, Miriam Sàbata
a Servicio Digestivo ICS-Intitut d’Assistència Sanitària, Hospital Santa Caterina, Salt, Girona, Spain
b Agència de Salut Pública de Catalunya, Generalitat de Catalunya, Spain
c Laboratori Clínic Territorial de Girona ICS Girona, Generalitat de Catalunya, Spain
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Tables (2)
Table 1. Demographic and baseline characteristics of all patients scheduled for endoscopy, Santa Caterina Hospital, Girona. May 2020.
Table 2. Characteristics of patients with SARS-CoV-2 PCR+ in respiratory samples collected 48–72 h before the procedure.
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Abstract

Healthcare professionals in endoscopy units have a possible risk of SARS-CoV-2 infection by different routes: inhalation of airborne droplets, aerosols, conjunctival contact and faecal-oral transmission.

Objective

To describe the detection of SARS-CoV-2 in a series of patients scheduled for digestive endoscopy at the Hospital Santa Caterina, Salt, (Girona).

Methods

Descriptive study of a series of cases of patients scheduled for endoscopy during the month of May 2020, when endoscopic activity was resumed after the peak of the pandemic, following SCD, SEED, AEG and ESGE recommendations. We examined nasopharyngeal samples 48−72 h before the appointment, by RT-PCR, in all patients. RNA extraction was performed using the kits: Qiagen®-adapted, BiosSprint®96-DNA-Blood-Kit (384). For amplification-detection of SARS-CoV-2, methods recommended by the WHO and the CDC were followed.

Results

110 asymptomatic patients without close contact with a positive case in the previous 14 days were scheduled; 105 (96.4%) were negative and five (4.5%) were positive. Two patients developed respiratory symptoms after diagnosis (presymptomatic) and three remained asymptomatic. Allfive5 patients were autochthonous cases with no history of travel or residence in another city or country associated with high prevalence of infection. Four cases were women aged 60–81 years. The N gene was detected in all cases.

Conclusions

A high prevalence of SARS-CoV-2 infection was detected in patients scheduled for digestive endoscopy. Given the risk of transmission to professionals, we consider it advisable to perform SARS-CoV-2 RT-PCR 48−72 h before the examination in situations of high incidence in the population.

Keywords:
SARS-CoV-2
Endoscopy
Resumen

Los profesionales de la salud de las unidades de endoscopia tienen un posible riesgo de infección por SARS-CoV-2 por diferentes vías: inhalación de gotitas en el aire, aerosoles, contacto conjuntival y transmisión fecal-oral.

Objetivo

Describir la detección del SARS-CoV-2, en una serie de pacientes, programados para endoscopia digestiva en el Hospital Santa Caterina. Salt. (Girona).

Métodos

Estudio descriptivo de una serie de casos de pacientes programados para endoscopia durante el mes de mayo de 2020, en el reinicio de la actividad endoscópica después del pico pandémico, siguiendo las recomendaciones de SCD, SEED, AEG y ESGE. Examinamos muestras nasofaríngeas 48−72 horas antes de la cita, mediante RT-PCR a todos los pacientes. La extracción del ARN se hizo mediante kits: Qiagen®-adaptado, BiosSprint®96-DNA-Blood-Kit (384). Para amplificación-detección del SARS-CoV-2 se siguieron métodos recomendados por la OMS y el CDC.

Resultados

Se programaron 110 pacientes asintomáticos sin contacto estrecho con positivo los 14 días previos; 105 (96,4%) fueron negativos y 5 (4,5%) positivos. Dos pacientes desarrollaron clínica respiratoria después del diagnóstico (presintomáticos) y 3 continuaron asintomáticos. Los 5 pacientes eran casos autóctonos y sin antecedentes de viaje o residencia en otra ciudad o país asociado a alta prevalencia de infección. Cuatro casos fueron mujeres entre 60–81 años. El gen N fue detectado en todos los casos.

Conclusiones

Se detectó una alta prevalencia de infección por SARS-CoV-2 en pacientes programados por endoscopia digestiva. Dado el riesgo de transmisión a los profesionales, consideramos recomendable realizar RT-PCR del SARS-CoV-2 48−72 horas antes de la exploración en situaciones de alta incidencia poblacional.

Palabras clave:
SARS-CoV-2
Endoscopia

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