What is the role of bile drainage

Bile drainage refers to a surgery that drains bile out of the body for examination. Excessive bile acid in the human body is an abnormal phenomenon. Bile acid in the human body is a component of bile. Bile acid plays a digestive role and can maintain the balance of human kidney function. When bile acid is high, itchy skin symptoms may occur. Biliary drainage is one of the methods of examination. The following is a detailed introduction to its functions.

Function of bile drainage:

First, it can play a supporting role, maintain the normal shape of the lumen, and ensure that its two ends are well aligned;

Secondly, it can prevent luminal stenosis and bile duct obstruction;

Also, it can maintain unobstructed bile drainage and prevent bile from leaking into the abdominal cavity;

Finally, it is convenient for exploration, and any emergency situation can be discovered and handled immediately.

Patient preparation

(1) First, explain to the patient the purpose, significance, and requirements of the operation to relieve the patient's concerns and obtain the patient's cooperation.

(2) Advise the patient to eat a low-fat diet three days before surgery to avoid insufficient bile volume or poor bile concentration that may affect the test results.

(3) Fast for 12 hours before surgery.

2. Item preparation

In the sterile treatment tray are placed a metal-headed duodenal drainage tube, a curved tray, a vascular clamp, two pieces of gauze, one 50 ml syringe and one 5 ml syringe; one treatment towel and one small rubber towel, 50 ml of sterilized 33% magnesium sulfate, an alcohol lamp, a box of matches, a test tube clamp, 4 culture tubes and small conical flasks, marked with A, B, C, and D respectively.

3. Before surgery, measure the length of the patient's digestive tract in vitro: from the corner of the mouth through the mandibular angle along the trachea straight down to the xiphoid process; from the top of the head to the xiphoid process; from the tip of the nose through the earlobe to the xiphoid process.

Methods and content

1. Do not eat or drink after dinner on the eve of the examination. Explain the purpose and method of the examination to the patient to gain cooperation.

2. Insert the duodenal drainage tube through the mouth to the 50 cm mark and drain the gastric juice.

3. The patient should lie on his left side with his head high and his feet low (the head of the bed should be raised by 30 cm). Continue to swallow the tube at a rate of 0.5 cm/min to the 60 cm mark. Do not rush for results.

4. The patient sits on the center edge of the bed with his feet apart and placed on a chair, his hands on his knees, his upper body leaning forward, and taking deep breaths repeatedly 5-7 times; then he should lie on his right side with his head low and his feet high (his head should be at the end of the bed), and continue to swallow the tube at a speed of 0.5cm/min to the 75cm mark.

5. When the drainage tube reaches a depth of about 70 cm, open the tube and observe the color of the retained fluid. If it remains yellow, use pH test paper to measure its acidity and alkalinity. If it is alkaline, it has reached the duodenum. The specimen collected is the duodenal fluid (duodenal fluid).

6. Inject 30-40 ml of warm 33% magnesium sulfate solution, clamp the duodenal tube for 5-10 minutes, then loosen the hemostatic forceps and the liquid will flow out naturally. Introduce the drainage fluid into several test tubes in order according to color and turbidity. The golden liquid is bile from the bile duct and cystic duct, about 5-30 ml (liquid A); the dark brown thick liquid that flows out within 25 minutes is bile from the gallbladder, about 40 ml (liquid B); the last lemon-colored thin liquid that flows out is bile from the hepatic bile duct (liquid C). Collect liquid A, liquid B and liquid C separately into 3 clean test tubes and 3 culture tubes for inspection.

7. After the inspection, remove the drainage tube. Ask the patient to wash, eat and keep records.