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Endoscopic Procedures II: Colonoscopy01:25

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The colon, or large intestine, is the final segment of the digestive system. Its primary functions include absorbing water and vitamins produced by gut bacteria and transforming waste from liquid to solid to form stool. In adults, the large intestine is approximately 5 feet long and consists of four main sections:
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Endoscopic Procedures IV: Sigmoidoscopy and Laproscopy01:26

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Sigmoidoscopy and laparoscopy are distinct medical procedures that enable physicians to internally inspect different parts of the GI tract. Although they serve different purposes, each is essential for diagnosing and, in some cases, treating various medical conditions.
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Related Experiment Video

Updated: Oct 4, 2025

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Operationalizing a Rideshare Intervention for Colonoscopy Completion: Barriers, Facilitators, and Process

Ari Bell-Brown1, Lisa Chew2, Bryan J Weiner3

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Frontiers in Health Services
|February 7, 2022
PubMed
Summary

Transportation barriers hinder colonoscopy completion for colorectal cancer screening. A rideshare non-emergency medical transportation (NEMT) intervention shows promise for improving access in safety-net settings.

Keywords:
ColonoscopyColorectal CancerNon-Emergency Medical TransportationScreening

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Area of Science:

  • Healthcare access and delivery
  • Public health interventions
  • Colorectal cancer screening

Background:

  • Transportation is a significant barrier to colonoscopy completion for colorectal cancer (CRC) screening.
  • Safety-net healthcare settings face unique challenges in ensuring patient access to essential screening procedures.
  • Developing innovative solutions is crucial to overcome these access barriers.

Purpose of the Study:

  • To identify barriers and facilitators for implementing a rideshare non-emergency medical transportation (NEMT) intervention.
  • To develop process recommendations for integrating rideshare NEMT into colonoscopy completion pathways.
  • To evaluate the feasibility of a rideshare NEMT program in a safety-net healthcare setting.

Main Methods:

  • Utilized informal stakeholder engagement, storyboarding, listening sessions, and the nominal group technique.
  • Employed a user-centered design approach to identify implementation challenges and solutions.
  • Focused on a large safety-net healthcare system to assess real-world applicability.

Main Results:

  • Key barriers included limitations in expanding NEMT programs and the need for patient chaperones with rideshare services.
  • Facilitators identified were the lower cost and shorter wait times of commercial rideshare NEMT platforms compared to taxis.
  • Implementation required stakeholder engagement, institutional approval, vendor selection, contract execution, SOP development, and staff training.

Conclusions:

  • Rideshare NEMT following procedural sedation can potentially increase colonoscopy completion rates, addressing inadequate CRC screening.
  • This rideshare model offers a scalable solution for other safety-net health systems and populations with high social needs.
  • The intervention may be applicable in various settings where procedural sedation is administered.