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Vol. 47. Issue 2.
Pages 170-178 (February 2024)
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Vol. 47. Issue 2.
Pages 170-178 (February 2024)
Original Article
Evaluation of the effectiveness and safety of single-operator cholangiopancreatoscopy with the SpyGlass™ system
Evaluación de la eficacia y seguridad de la colangiopancreatoscopia de un solo operador con el sistema SpyGlass®
Coral Tejidoa,b, Manuel Pugaa,b,
Corresponding author
, Cristina Regueirob, María Franciscoa,b, Laura Rivasa,b, Eloy Sáncheza,b
a Department of Digestive Diseases, Complexo Hospitalario Universitario de Ourense, Ourense, Spain
b Grupo de Investigación en Oncología Digestiva (GIODO), Instituto de Investigación Sanitaria Galicia Sur, Ourense, Spain
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Figures (2)
Tables (4)
Table 1. Demographic data and baseline information of the procedures.
Table 2. Observations of the procedures, outcomes and adverse events.
Table 3. Diagnostic capacity of SOCP through endoscopic visualization and histological study.
Table 4. Association of different variables to the appearance of AE.
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Additional material (1)
Abstract
Background and study aims

The single-operator cholangiopancreatoscopy (SOCP) with the SpyGlass™ system is a endoscopy technique whose use has grown exponentially in recent years. The aims of this study were to evaluate the efficacy and safety of SOCP with SpyGlass™ and determine the factors related to the onset of adverse events (AEs).

Patients and methods

Retrospective study at a single tertiary institution with inclusion of all consecutive patients undergoing SOCP with SpyGlass™ from February-2009 to December-2021. No exclusion criteria were considered. A descriptive statistical analysis was performed. The factors associated with the existence of AE were analyzed using Chi-square and Student's t-test.

Results

A total of 95 cases were included. The most common indications were biliary strictures (BS) evaluation (66.3%) or treatment of difficult common bile duct stones (27.4%). Technical and clinical success was attained in 98.9%. Single-session stone clearance was obtained in 84%. The AE rate was 7.4%. To detect malignancy in BS, optical diagnosis presents a sensitivity and specificity of 100% and 91.2%, respectively; while histology results were 36.4% and 100% respectively. A previous endoscopic sphincterotomy was associated with a lower rate of AEs (2.4% vs 41.7%; p<0.001).

Conclusions

SOCP with SpyGlass™ is a safe and effective technique to diagnose and treat pancreatobiliary pathology. The presence of sphincterotomy performed prior to the procedure could improve the technique's safety.

Keywords:
Biliary stricture
Cholangioscopy
Common bile duct stones
Endoscopic retrograde cholangiopancreatography
SpyGlass™
Abbreviations:
AE
BS
CBDS
EHL
ERCP
FDA
IPMN
SOCP
Resumen
Antecedentes y objetivos del estudio

La colangiopancreatoscopia de un solo operador (SOCP) con el sistema SpyGlass® es una técnica endoscópica cuyo uso ha crecido exponencialmente durante los últimos años. Los objetivos de este estudio fueron evaluar la eficacia y seguridad de la SOPC con SpyGlass® y determinar los factores relacionados con la aparición de eventos adversos (EA).

Pacientes y métodos

Estudio retrospectivo realizado en un único centro terciario, con inclusión consecutiva de todos los pacientes sometidos a SOCP con SpyGlass® desde febrero de 2009 hasta diciembre de 2021. No hubo criterios de exclusión. Se realizó un análisis estadístico descriptivo. Los factores asociados a la aparición de EA se analizaron mediante χ2 y la prueba t de Student.

Resultados

Se incluyeron un total de 95 casos. Las indicaciones más frecuentes fueron la evaluación de estenosis biliares (EB) (66,3%) o el tratamiento de coledocolitiasis difícil (27,4%). El éxito técnico y clínico se logró en 98,9%. La extracción de todas las litiasis en una sola sesión se obtuvo en 84%. La tasa de EA fue de 7,4%. Para la detección de malignidad en EB, el diagnóstico óptico presenta una sensibilidad y especificidad de 100% y 91,2%, respectivamente; mientras que los resultados de la histología fueron 36,4 y 100%, respectivamente. La esfinterotomía endoscópica previa se asocia con una menor tasa de EA (2,4 vs. 41,7%; p<0,001).

Conclusiones

La SOCP con SpyGlass® es una técnica segura y eficaz para diagnosticar y tratar la patología biliopancreática. La presencia de esfinterotomía previa al procedimiento podría mejorar la seguridad de la técnica.

Palabras clave:
Estenosis biliar
Colangioscopia
Coledocolitiasis
Colangiopancreatografía retrógrada endoscópica
SpyGlass®

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