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Caracterización y rendimiento diagnóstico de colonoscopías realizadas en pacientes menores de 45 años.

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Title: Caracterización y rendimiento diagnóstico de colonoscopías realizadas en pacientes menores de 45 años.
Alternate Title: Characterization and diagnostic yield of colonoscopies performed in patients under 45 years of age.
Authors: Castillo-Warken, Valentina1 vcastillo@miuandes.cl, Escalona-Boada, Carol1, Mordojovich-Zuñiga, Eduardo1, Lizana-Corvera, Manuel1, Martínez-Mardones, Mónica1, Campaña-Villegas, Gonzalo1
Source: Revista de Cirugia. 2026, Vol. 78 Issue 1, p3-9. 7p.
Abstract (English): Objective: To characterize the indications and findings of colonoscopies performed in individuals under 45 to evaluate diagnostic yield. Materials and Methods: Analytical cross-sectional study of 1000 patients ≤ 45 years who underwent colonoscopy (2022–2024, Clínica INDISA). Inadequate preparations were excluded. Patients with and without significant findings (polyps > 1 cm, high grade dysplasia, colorectal cancer (CRC), etc.) were compared using logistic regression. Results: A total of 5.9% presented significant findings, the most frequent being polyps ≥ 1 cm (50.8%) and ≥ 3 adenomas (23.7%). Colorectal cancer was diagnosed in 0.5% of cases. Bleeding was the most common indication. The group with significant findings were older and had a higher proportion of males (p = 0.0203 and p = 0.0263, respectively). Logistic regression showed a significant association with a history of polyps (OR: 6.62; p < 0.001). Discussion: Colonoscopy in young adults shows low diagnostic yield, especially in nonspecific indications. These findings support a more selective approach to patient referral. Conclusion: Colonoscopy is safe in young adults but its utility should be optimized by prioritizing high-risk cases. [ABSTRACT FROM AUTHOR]
Abstract (Spanish): Objetivo: Caracterizar las indicaciones y hallazgos de las colonoscopías realizadas en menores de 45 años para evaluar su rendimiento diagnóstico. Materiales y Métodos: Estudio transversal analítico de 1.000 pacientes de ≤ 45 años sometidos a colonoscopía entre 2022 y 2024 en Clínica INDISA. Se excluyeron estudios con preparación inadecuada. Se compararon grupos con y sin hallazgos significativos (pólipos > 1 cm, displasia de alto grado, cáncer colorrectal (CCR), etc.) mediante regresión logística. Resultados: El 5,9% presentó hallazgos significativos, siendo los más frecuentes pólipos ≥ 1 cm (50,8%) y ≥ 3 adenomas (23,7%). El 0,5% tuvo diagnóstico de CCR. El sangrado fue la indicación más común. El grupo con lesiones tuvo mayor edad y sexo masculino en mayor proporción (p = 0,0203 y p = 0,0263). La regresión logística mostró asociación significativa con antecedente de pólipos (OR: 6,62; p < 0,001). Discusión: La colonoscopía en jóvenes tiene bajo rendimiento diagnóstico, especialmente en indicaciones inespecíficas. Los hallazgos refuerzan la necesidad de una mejor selección de pacientes y uso racional del examen. Conclusión: La colonoscopía es segura en población joven, pero su utilidad debe ser optimizada priorizando pacientes con mayor riesgo. [ABSTRACT FROM AUTHOR]
Copyright of Revista de Cirugia is the property of Sociedad de Cirujanos de Chile and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
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  Data: Caracterizaci&#243;n y rendimiento diagn&#243;stico de colonoscop&#237;as realizadas en pacientes menores de 45 a&#241;os.
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  Data: Characterization and diagnostic yield of colonoscopies performed in patients under 45 years of age.
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  Data: &lt;searchLink fieldCode=&quot;AR&quot; term=&quot;%22Castillo-Warken%2C+Valentina%22&quot;&gt;Castillo-Warken, Valentina&lt;/searchLink&gt;&lt;relatesTo&gt;1&lt;/relatesTo&gt;&lt;i&gt; vcastillo@miuandes.cl&lt;/i&gt;&lt;br /&gt;&lt;searchLink fieldCode=&quot;AR&quot; term=&quot;%22Escalona-Boada%2C+Carol%22&quot;&gt;Escalona-Boada, Carol&lt;/searchLink&gt;&lt;relatesTo&gt;1&lt;/relatesTo&gt;&lt;br /&gt;&lt;searchLink fieldCode=&quot;AR&quot; term=&quot;%22Mordojovich-Zu&#241;iga%2C+Eduardo%22&quot;&gt;Mordojovich-Zu&#241;iga, Eduardo&lt;/searchLink&gt;&lt;relatesTo&gt;1&lt;/relatesTo&gt;&lt;br /&gt;&lt;searchLink fieldCode=&quot;AR&quot; term=&quot;%22Lizana-Corvera%2C+Manuel%22&quot;&gt;Lizana-Corvera, Manuel&lt;/searchLink&gt;&lt;relatesTo&gt;1&lt;/relatesTo&gt;&lt;br /&gt;&lt;searchLink fieldCode=&quot;AR&quot; term=&quot;%22Mart&#237;nez-Mardones%2C+M&#243;nica%22&quot;&gt;Mart&#237;nez-Mardones, M&#243;nica&lt;/searchLink&gt;&lt;relatesTo&gt;1&lt;/relatesTo&gt;&lt;br /&gt;&lt;searchLink fieldCode=&quot;AR&quot; term=&quot;%22Campa&#241;a-Villegas%2C+Gonzalo%22&quot;&gt;Campa&#241;a-Villegas, Gonzalo&lt;/searchLink&gt;&lt;relatesTo&gt;1&lt;/relatesTo&gt;
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  Data: &lt;searchLink fieldCode=&quot;JN&quot; term=&quot;%22Revista+de+Cirugia%22&quot;&gt;Revista de Cirugia&lt;/searchLink&gt;. 2026, Vol. 78 Issue 1, p3-9. 7p.
– Name: Abstract
  Label: Abstract (English)
  Group: Ab
  Data: Objective: To characterize the indications and findings of colonoscopies performed in individuals under 45 to evaluate diagnostic yield. Materials and Methods: Analytical cross-sectional study of 1000 patients ≤ 45 years who underwent colonoscopy (2022–2024, Cl&#237;nica INDISA). Inadequate preparations were excluded. Patients with and without significant findings (polyps &gt; 1 cm, high grade dysplasia, colorectal cancer (CRC), etc.) were compared using logistic regression. Results: A total of 5.9% presented significant findings, the most frequent being polyps ≥ 1 cm (50.8%) and ≥ 3 adenomas (23.7%). Colorectal cancer was diagnosed in 0.5% of cases. Bleeding was the most common indication. The group with significant findings were older and had a higher proportion of males (p = 0.0203 and p = 0.0263, respectively). Logistic regression showed a significant association with a history of polyps (OR: 6.62; p &lt; 0.001). Discussion: Colonoscopy in young adults shows low diagnostic yield, especially in nonspecific indications. These findings support a more selective approach to patient referral. Conclusion: Colonoscopy is safe in young adults but its utility should be optimized by prioritizing high-risk cases. [ABSTRACT FROM AUTHOR]
– Name: Abstract
  Label: Abstract (Spanish)
  Group: Ab
  Data: Objetivo: Caracterizar las indicaciones y hallazgos de las colonoscop&#237;as realizadas en menores de 45 a&#241;os para evaluar su rendimiento diagn&#243;stico. Materiales y M&#233;todos: Estudio transversal anal&#237;tico de 1.000 pacientes de ≤ 45 a&#241;os sometidos a colonoscop&#237;a entre 2022 y 2024 en Cl&#237;nica INDISA. Se excluyeron estudios con preparaci&#243;n inadecuada. Se compararon grupos con y sin hallazgos significativos (p&#243;lipos &gt; 1 cm, displasia de alto grado, c&#225;ncer colorrectal (CCR), etc.) mediante regresi&#243;n log&#237;stica. Resultados: El 5,9% present&#243; hallazgos significativos, siendo los m&#225;s frecuentes p&#243;lipos ≥ 1 cm (50,8%) y ≥ 3 adenomas (23,7%). El 0,5% tuvo diagn&#243;stico de CCR. El sangrado fue la indicaci&#243;n m&#225;s com&#250;n. El grupo con lesiones tuvo mayor edad y sexo masculino en mayor proporci&#243;n (p = 0,0203 y p = 0,0263). La regresi&#243;n log&#237;stica mostr&#243; asociaci&#243;n significativa con antecedente de p&#243;lipos (OR: 6,62; p &lt; 0,001). Discusi&#243;n: La colonoscop&#237;a en j&#243;venes tiene bajo rendimiento diagn&#243;stico, especialmente en indicaciones inespec&#237;ficas. Los hallazgos refuerzan la necesidad de una mejor selecci&#243;n de pacientes y uso racional del examen. Conclusi&#243;n: La colonoscop&#237;a es segura en poblaci&#243;n joven, pero su utilidad debe ser optimizada priorizando pacientes con mayor riesgo. [ABSTRACT FROM AUTHOR]
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  Data: &lt;i&gt;Copyright of Revista de Cirugia is the property of Sociedad de Cirujanos de Chile and its content may not be copied or emailed to multiple sites without the copyright holder&#39;s express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.&lt;/i&gt; (Copyright applies to all Abstracts.)
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