Dr. Derek Ebner, a gastroenterologist at Mayo Clinic, has detailed the process of colonoscopies to improve patient understanding of colorectal cancer screening [1].
Regular screening is critical because it allows doctors to find and remove precancerous polyps before they develop into malignant tumors [1, 2]. This preventative approach is considered one of the most effective ways to reduce the incidence of colorectal cancer [1, 2].
Ebner said the process consists of three distinct phases: preparation, the procedure, and recovery [1]. The preparation phase occurs the day before the appointment and involves a specific dietary and cleansing regimen to ensure the colon is clear for visualization [1].
During the procedure at the Mayo Clinic in Rochester, Minnesota, clinicians use a colonoscope to examine the lining of the colon [1, 2]. If the physician identifies any polyps, they can be removed during the same session [1]. This dual capability of detection and immediate intervention is a primary advantage of the colonoscopy over other screening methods [1, 2].
Following the procedure, patients enter a recovery period [1]. The duration and nature of this phase depend on the sedation used during the screening [1].
Ebner said the goal of the process is to provide a comprehensive look at the colorectal health of the patient [1]. By identifying abnormalities early, the medical team can prevent the progression of the disease [1, 2].
“Colorectal cancer screening is one of the most effective ways to prevent colorectal cancer.”
The emphasis on the three-phase process—preparation, procedure, and recovery—highlights the importance of patient compliance, particularly during the preparation stage, to ensure the diagnostic accuracy of the screening. By framing the colonoscopy as both a diagnostic and therapeutic tool, the Mayo Clinic underscores the shift toward preventative medicine where the removal of polyps serves as a primary intervention to stop cancer before it starts.
