How often can do colonoscopy for prevention?
In modern conditions, endoscopic methods are gaining in demand. This is due not to the ease of manipulation. The main advantage of the technique is the possibility of visualizing pathological processes of the mucous membrane of the studied organs. Additionally, you can carry out simple surgical procedures: removal of polyps, stop minor bleeding by cautery or overlay clips.
Colonoscopy is needed today to prevent a large number of intestinal diseases, including malignancy. This method can be considered as screening. In the framework of the implementation of follow-up this study is indicated in patients older than 50 years. In the article the peculiarities of the procedure, indications and contraindications to it, and also gives information about how often can do colonoscopy.
Not to do colonoscopy in all patients at the request or with minor discomfort from the gastrointestinal tract. For all invasive manipulation, there are clearly a limited number of indications.
Priority it is necessary to investigate patients who have specific complaints and the details of their physical examination wary of the doctor in terms of possible presence of cancer.
What a situation this can be attributed to?
- The appearance of blood on the surface of the stool in the absence of anal fissures or hemorrhoids when Paltseva rectal examination and rectoscopy with the help of special mirrors.
- Severe anemia iron or b-12 deficient character.
- Positive reaction Gregersen, indicating the presence in the stool of occult blood.
- Persistent melena (tarry black stools) in the absence of erosions, ulcers and cracks when performing fibroezofagogastroduodenoscopy.
Patients are referred for this procedure after a certain pre-set methods. You may need x-rays of the esophagus, stomach, the assessment of passage of barium suspension through the intestines, as well as ultrasound examination of abdominal cavity organs.
Frequency of colonoscopy in patients at risk
To determine the required frequency of conducting colonoscopic studies for the prevention of colorectal diseases, using a differentiated approach. Allocate risk. The average age of the examined contingent of up to fifty years.
The first group of patients should include people, family history of cancer neoplasms generous.
Moreover, it is important to assess the degree of relationship and age of relatives at the time of detection of neoplasia. If the tumor of any localization was diagnosed in a mother, father, sister, brother (family) to achieve 60 years of age, the frequency of colonoscopy – 1 every 10 years. Start screening is recommended at the age of 40.
When the neoplastic process was detected in distant relatives or neighbors, but earlier than 60 years of age, preventive colonoscopy should be 40-year-old patients (or older), 2 times in 10 years (once in 5 years). These deadlines are important to follow in order to diagnose possible developmental processes.
Polyps and the management of patients after their removal
This is a relatively benign disease, which are covered with epithelium. They can be of different nature, growth, size, degree of cell differentiation. From these factors will depend on the approach and tactics of the doctor.
All polyps are considered precancerous diseases. Depending on the cellular composition and morphological structure, they zlokacestvennoe with different frequency. But the approach of Coloproctology is that it is better to promptly remove and get rid of neoplasia, even benign.
But after these structures are removed, patient monitoring ends. It is necessary to do preventive colonoscopy test with different multiplicity.
If adenomatous education is small, i.e. their size does not exceed 10 mm (diameter), fibrocolonoscopy is carried out 1 time for 5 or 10 years. Their number – no more than 1-2 pieces, and they are the structure should be simple, tubular.
1 every three years undergo colonoscopy study patients operated on for villany (villous) tumors of the mucosa of the colon.
The second subgroup with the same frequency of patients with tubular adenomas whose diameter exceeds 10 mm. the Third cohort – patients with multiple polyps (3 to 10 pieces). Time interval for endoscopic examination decreases with the increasing number of remote neoplasia in excess of a dozen.
Special attention deserves so-called «sedentary» adenoma. It is this morphological form polyps zlokacestvennoe more often and transformirovalsya in colorectal cancer. Its size should be more than 2 cm in diameter. During the year, the colonoscopy must be conducted in accordance with the latest recommendations from 2 to 6 times. This is due to the extremely high developmental potential of the tumor.
Inflammatory bowel disease
This group of diseases include ulcerative colitis and Crohn’s disease. They are accompanied by inflammatory changes in the mucous membrane of the colon, rarely sigmoid, and blind. Diseases accompanied by the development of ulcers and erosions. As you know, chronic and long flowing inflammation – the precursor hyperplasia and metaplasticity processes that can transform into cancer pathology with a high potential of malignancy.
For this reason, patients with said pathologies undergo a colonoscopy as a preventive measure. If ulcerative colitis or Crohn’s disease occur for more than 8 years with the defeat of the entire colon or more than 15 years, with localization to the left (descending colon), then this procedure is performed 1 time in 2-3 years. When the «experience» of the disease more than 20 years, it is necessary to reduce the interval to annual surveys. It should be remembered that in severe forms of these pathologies endoscopic examination of the colon is contraindicated.