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Colonic diverticula are pouch-like structures that develop in the wall of the colon, most commonly in the sigmoid and left colon, but can also involve the entire colon. When these diverticula become infected, it causes diverticulitis. Medical imaging and colonoscopy play a very important role in diverticulitis of the colon, the means above not only help diagnose and evaluate the colonoscopy accurately, but also help guide treatment and treatment. treatment and monitoring progress.1. Who often suffers from diverticular disease?
Because the formation process takes a long time, diverticular disease is common in the elderly. However, cases occurring in the age of 30 or older are not uncommon. Sometimes the colon, especially the sigmoid colon, is filled with diverticula. This disease is common in Western societies.
The disease is very rare in rural areas of Africa or India. Food in these regions often consists of unprocessed foods and nuts that are rich in fiber. Therefore, a high-fiber diet is very beneficial for disease prevention.
Thực phẩm giàu chất xơ giúp ngăn ngừa bệnh viêm túi thừa đại tràng
2. Symptoms of diverticulitis
When diverticula begin to form, there are usually very few symptoms, except for occasional contractions in the left iliac fossa. As diverticular disease progresses, the lower colon may become less mobile, deformed, and narrowed. At that time, stools are usually thin and small, constipated, sometimes with episodes of diarrhea. When mechanical and structural problems arise, treatment becomes more difficult.
3. Complications of diverticular disease
The complication rate of diverticular disease is relatively low. However, serious complications can still occur. Diverticulitis is the most common complication.
3.1 Diverticulitis
Like a balloon, the diverticulum expands, and the wall becomes thinner compared to the rest of the colon. The colon is home to many beneficial bacteria while they are still in the colon. However, these bacteria can penetrate the thin wall of the diverticulum and cause an infection, a condition called diverticulitis. Mild inflammation causes only mild pain in the left iliac fossa. If the inflammation is severe, it will cause a lot of pain and fever.
Diverticulitis needs to be treated. You will need antibiotics and fasting, sometimes even drinking, to give the colon a rest. In severe cases, the patient needs to be hospitalized.
Viêm túi thừa là một triệu chứng bệnh túi thừa
3.2 Bleeding
Hemorrhagic complications occur due to rupture of a blood vessel in the colonic diverticulum. Fresh blood profusely from the anus or sometimes dark, mahogany stools, when bleeding occurs in the right colonic diverticulum.
3.3 Perforated diverticulum
This complication is rare, but it is the most serious complication. Bacteria from the colon escape into the abdomen causing peritonitis or abscess. In most cases, abdominal surgery is required to solve the problem.
Khi bị thủng túi thừa người bệnh cần được chỉ định phẫu thuật
4. Grading of colonic diverticulitis
There are several grades for diverticulitis of the colon. The two commonly used grades are the European laparoscopic surgery (European Association) for laparoscopic surgery and the Hinchey's grade for ruptured diverticulitis.
Table 1. The classification of EATs of the European Union of Laparographies
| Phân nhóm | Mô tả | Triệu chứng |
| I | VTTĐT không biến chứng (VTTĐT đơn giản) | Sốt, đau bụng âm ỉ, có bằng chứng viêm túi thừa trên CT |
| II | VTTĐT không biến chứng tái phát | Bệnh nhân thuộc nhóm I tái phát triệu chứng |
| III | VTTĐT có biến chứng (VTTĐT phức tạp) | Áp xe, mưng mủ, VPM, rò tiêu hóa, tắc ruột, chít hẹp lòng ruột |
To assess the severity of ruptured diverticulitis, Hinchey gave a four-degree grading scale. Hinchey grade can be evaluated before or during surgery, preoperative assessment is mainly based on imaging. The Hinchey grade, modified by Wexner in 1997, separates grade II (pelvic abscess) into two more specific grades, IIa and IIb.
Table 2: Modified Hinchey grading for broken UC
| Phân độ | Mô tả |
| I | Áp xe nhỏ quanh đại tràng |
| IIa | Áp xe xa dễ dẫn lưu |
| IIb | Áp xe phức tạp có/không kèm rò |
| III | VPM toàn thể do mủ |
| IV | VPM toàn thể do phân |
Hình: Phân độ Hinchey cho viêm túi thừa đại tràng vỡ.
(Source: Welch J.P. and Cohen J.L. (2006), "Diverticulitis", ACS Surgery: Principles and Practice, WebMD Professional Pub. , Ch.12, p.540-553)
The Hinchey grading is useful for treatment selection and prognosis. Most patients with grade I can be treated medically; 70-90% of patients with grades I or IIa can successfully drain; The mortality rate in patients with grades III is 6% and IV is 35%.
5. Is there a definitive treatment for diverticula?
Once a diverticulum is formed it is permanent, there is no treatment to prevent diverticulitis complications. A high-fiber diet that increases stool volume and prevents constipation can help relieve symptoms.
There is no evidence for the ability of nuts to cause diverticulitis, however, if some patients develop signs of diverticulitis after eating nuts, they should not continue to eat but should be replaced with food. contain a lot of fiber such as fruits, vegetables, whole grains, legumes.
The American Dietetic Association recommends that women eat about 25 grams of fiber and men about 38 grams of fiber per day. Besides, drinking lots of water and exercising regularly are also effective.
Conclusion Colonic diverticulum is a common disease and is not dangerous unless there are complications. Although there is no way to prevent and treat the disease, it is possible to limit the formation of diverticula and its complications by eating a lot of fiber, drinking plenty of water, and exercising regularly. The grading of diverticulitis helps to confirm the diagnosis, guide treatment, and prognosis.
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References:Le Huy Luu, Nguyen Van Hai (2010), "Results of right colonic diverticulum surgery by laparoscopic surgery", Medicine of Ho Chi Minh City, volume 14 (additional to No. 4). ), p.12-15. Ly Minh Tung, Nguyen Van Hai (2011), Clinical features, images, and surgical results for diverticulitis. Aldoori W.H., Giovannucci E.L., Rockett H.R., et al. (1998), "A prospective study of dietary fiber types and symptomatic diverticular disease in men", J Nutr, Vol.128 (4), p.714-719. Ambrosetti P., Robert J.H., Witzig J.A., et al. (1994), "Acute left colonic diverticulitis: a prospective analysis of 226 consecutive cases", Surgery, Vol.115 (5), p.546-550.
